@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@300;400;500;600;700&display=swap";*{margin:0;padding:0;box-sizing:border-box}:root{--font-sans: "Inter", "Segoe UI", "Roboto", sans-serif;--font-display: "Space Grotesk", "Inter", sans-serif;--space-xs: .375rem;--space-sm: .75rem;--space-md: 1.25rem;--space-lg: 2rem;--space-xl: 3rem;--space-2xl: 4rem;--space-3xl: 6rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-3xl: 2rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, .37);--transition-fast: .15s 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.05);--accent2-transparent-08: rgba(139, 92, 246, .08);--accent2-transparent-15: rgba(139, 92, 246, .15);--accent-hover: #5855eb;--success: #10b981;--success-light: rgba(16, 185, 129, .15);--warning: #f59e0b;--warning-light: rgba(245, 158, 11, .15);--danger: #ef4444;--danger-dark: #dc2626;--danger-light: rgba(239, 68, 68, .15);--danger-transparent-30: rgba(239, 68, 68, .3);--danger-transparent-40: rgba(239, 68, 68, .4);--danger-transparent-60: rgba(239, 68, 68, .6);--info: #06b6d4;--info-light: rgba(6, 182, 212, .15);--white-transparent-05: rgba(255, 255, 255, .05);--white-transparent-08: rgba(255, 255, 255, .08);--white-transparent-10: rgba(255, 255, 255, .1);--white-transparent-15: rgba(255, 255, 255, .15);--white-transparent-20: rgba(255, 255, 255, .2);--white-transparent-30: rgba(255, 255, 255, .3);--black-transparent-20: rgba(0, 0, 0, .2);--black-transparent-30: rgba(0, 0, 0, .3);--black-transparent-40: rgba(0, 0, 0, .4);--black-transparent-50: rgba(0, 0, 0, .5);--black-transparent-75: rgba(0, 0, 0, .75);--border-color: rgba(255, 255, 255, .1);--border-focus: var(--accent);--sidebar-width: 240px;--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--glass-shadow: var(--shadow-glass);--gradient-primary: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);--gradient-secondary: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);--gradient-success: linear-gradient(135deg, var(--success) 0%, var(--success) 100%);--gradient-danger: linear-gradient(135deg, var(--danger) 0%, var(--danger) 100%);--gradient-glass: linear-gradient(135deg, var(--glass-bg) 0%, var(--card-bg-glass) 100%);--gradient-warning: linear-gradient(135deg, var(--warning) 0%, var(--warning) 100%);--gradient-info: linear-gradient(135deg, var(--info) 0%, var(--info) 100%);--shadow: rgba(0, 0, 0, .4);--color-sidebar-gradient-start: #0a0e1a;--color-sidebar-gradient-end: #141b2e;--color-text-primary: var(--text-color);--color-title: var(--text-light);--color-accent: var(--accent);--color-link-hover-bg: var(--accent-light);--color-link-hover-shadow: var(--shadow-md);--color-scrollbar-thumb: var(--accent);--color-scrollbar-track: var(--bg-secondary);--color-sidebar-shadow: var(--shadow-xl);--color-logout-bg: var(--danger);--color-logout-hover-bg: #dc2626;--color-logout-text: #ffffff;--color-logout-hover-shadow: var(--shadow-lg);--color-toggle-bg: var(--glass-bg);--color-toggle-hover-bg: var(--accent-light);--color-toggle-text: #ffffff;--color-toggle-shadow: var(--shadow-md);--color-close-btn: var(--text-color);--color-close-btn-hover: var(--danger)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}*:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px;border-radius:var(--radius-sm)}.skip-to-main{position:absolute;top:-40px;left:0;background:var(--accent);color:var(--text-light);padding:var(--space-sm) var(--space-md);z-index:10000;text-decoration:none;border-radius:0 0 var(--radius-md) 0}.skip-to-main:focus{top:0}:root[data-theme=Dark]{--bg-dark: #0f0f0f;--bg-secondary: #1a1a1a;--card-bg: rgba(30, 30, 30, .9);--card-bg-glass: rgba(255, 255, 255, .04);--card-border: rgba(255, 255, 255, .1);--text-color: #f8fafc;--text-light: #ffffff;--text-muted: #a1a1aa;--accent: #3b82f6;--accent2: #8b5cf6;--accent-light: rgba(59, 130, 246, .15);--success: #22c55e;--warning: #eab308;--danger: #ef4444;--info: #06b6d4;--border-color: rgba(255, 255, 255, .12);--color-sidebar-gradient-start: #0f0f0f;--color-sidebar-gradient-end: #1a1a1a;--color-text-primary: var(--text-color);--color-title: var(--text-light);--color-accent: var(--accent);--color-link-hover-bg: rgba(59, 130, 246, .2);--color-link-hover-shadow: rgba(0, 0, 0, .3);--color-scrollbar-thumb: var(--accent);--color-scrollbar-track: var(--bg-secondary);--color-sidebar-shadow: rgba(0, 0, 0, .6);--color-logout-bg: 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var(--transition-fast);position:relative}a:hover{color:var(--accent-hover);transform:translateY(-1px)}a:after{content:"";position:absolute;width:0;height:2px;bottom:-2px;left:0;background:var(--gradient-primary);transition:width var(--transition-normal)}a:hover:after{width:100%}button,.btn{font-family:var(--font-sans);cursor:pointer;border:none;border-radius:var(--radius-lg);padding:var(--space-md) var(--space-lg);font-size:.95rem;font-weight:600;transition:all var(--transition-normal);position:relative;overflow:hidden;text-transform:none;letter-spacing:.025em;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);text-decoration:none;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--card-border);min-height:44px}.btn-primary,button:not([class]){background:var(--gradient-primary);color:var(--text-light);box-shadow:var(--shadow-lg)}.btn-primary:hover,button:not([class]):hover{transform:translateY(-2px) 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var(--space-2xl);font-size:1.25rem;border-radius:var(--radius-2xl)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.btn-outline{background:transparent;border:2px solid var(--accent);color:var(--accent)}.btn-outline:hover{background:var(--accent);color:var(--text-light)}.btn-icon{padding:var(--space-sm);border-radius:var(--radius-full);aspect-ratio:1;min-width:auto}input,textarea,select{font-family:var(--font-sans);font-size:1rem;color:var(--text-color);background:var(--glass-bg);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--space-sm) var(--space-md);outline:none;width:100%;transition:all var(--transition-normal);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:relative}input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light);background:var(--card-bg-glass);transform:translateY(-1px)}input:hover,textarea:hover,select:hover{border-color:var(--accent)}.input-group{position:relative;margin-bottom:var(--space-md)}.input-group label{display:block;font-weight:600;color:var(--text-light);margin-bottom:var(--space-xs);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em}.input-floating{position:relative}.input-floating input,.input-floating textarea{padding-top:var(--space-lg);padding-bottom:var(--space-xs)}.input-floating label{position:absolute;top:var(--space-sm);left:var(--space-md);color:var(--text-muted);transition:all var(--transition-normal);pointer-events:none;font-size:1rem;font-weight:400;text-transform:none;letter-spacing:normal}.input-floating input:focus+label,.input-floating input:not(:placeholder-shown)+label,.input-floating textarea:focus+label,.input-floating textarea:not(:placeholder-shown)+label{top:var(--space-xs);font-size:.75rem;color:var(--accent);font-weight:600}.input-error{border-color:var(--danger)!important;box-shadow:0 0 0 3px var(--danger-light)!important}.input-success{border-color:var(--success)!important;box-shadow:0 0 0 3px var(--success-light)!important}.error-message{color:var(--danger);font-size:.875rem;margin-top:var(--space-xs);font-weight:500}.success-message{color:var(--success);font-size:.875rem;margin-top:var(--space-xs);font-weight:500}table{width:100%;border-collapse:collapse;margin-bottom:var(--space-lg)}th,td{text-align:left;padding:var(--space-xs) var(--space-sm);border-bottom:1px solid var(--border-color)}th{background:var(--bg-secondary);font-weight:600}ul{list-style:none;padding-left:0}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-sm)}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mb-sm{margin-bottom:var(--space-sm)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}@media (max-width: 768px){html{font-size:15px}h1{font-size:1.8rem}h2{font-size:1.6rem}h3{font-size:1.4rem}}input,textarea,select{font-family:var(--font-sans);background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--radius-md);padding:var(--space-md);font-size:.95rem;color:var(--text-color);transition:all var(--transition-normal);width:100%;box-sizing:border-box}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light),var(--shadow-md);background:var(--card-bg-glass);transform:translateY(-1px)}input::placeholder,textarea::placeholder{color:var(--text-muted);opacity:.7}.fade-in{opacity:0;transform:translateY(10px);animation:fadeIn .6s ease forwards}@keyframes fadeIn{to{opacity:1;transform:translateY(0)}}::selection{background:var(--accent-light);color:var(--text-light)}::-moz-selection{background:var(--accent-light);color:var(--text-light)}@keyframes slideInFromLeft{0%{transform:translate(-100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes slideInFromRight{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes bounceIn{0%{transform:scale(.3);opacity:0}50%{transform:scale(1.05)}70%{transform:scale(.9)}to{transform:scale(1);opacity:1}}@keyframes glow{0%,to{box-shadow:0 0 5px var(--accent),0 0 10px var(--accent),0 0 15px var(--accent)}50%{box-shadow:0 0 10px var(--accent),0 0 20px var(--accent),0 0 30px var(--accent)}}@keyframes floatUp{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes sparkle{0%,to{opacity:0;transform:scale(0)}50%{opacity:1;transform:scale(1)}}.animate-slide-in-left{animation:slideInFromLeft .6s ease-out}.animate-slide-in-right{animation:slideInFromRight .6s ease-out}.animate-bounce-in{animation:bounceIn .8s ease-out}.animate-glow{animation:glow 2s ease-in-out infinite}.animate-float{animation:floatUp 3s ease-in-out infinite}*:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius-sm)}.loading-shimmer{background:linear-gradient(90deg,#ffffff1a,#fff3,#ffffff1a);background-size:200% 100%;animation:shimmer 1.5s infinite}@keyframes magneticFloat{0%,to{transform:translateY(0) rotate(0)}25%{transform:translateY(-10px) rotate(1deg)}50%{transform:translateY(-5px) rotate(0)}75%{transform:translateY(-15px) rotate(-1deg)}}@keyframes etherealGlow{0%,to{box-shadow:0 0 20px var(--accent-light);filter:brightness(1)}50%{box-shadow:0 0 40px var(--accent-light);filter:brightness(1.1)}}@keyframes morphicPulse{0%{border-radius:var(--radius-xl);transform:scale(1)}50%{border-radius:var(--radius-2xl);transform:scale(1.02)}to{border-radius:var(--radius-xl);transform:scale(1)}}@keyframes textGradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@keyframes particleFloat{0%,to{transform:translateY(0) translate(0) rotate(0);opacity:.6}33%{transform:translateY(-20px) translate(10px) rotate(120deg);opacity:.8}66%{transform:translateY(-10px) translate(-5px) rotate(240deg);opacity:.9}}.magnetic-float{animation:magneticFloat 6s ease-in-out infinite}.ethereal-glow{animation:etherealGlow 3s ease-in-out infinite}.morphic-pulse{animation:morphicPulse 4s ease-in-out infinite}.text-gradient-shift{background:var(--gradient-primary);background-size:400% 400%;animation:textGradientShift 8s ease infinite;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.particle-float{animation:particleFloat 8s ease-in-out infinite}.hover-lift-intense{transition:all .4s cubic-bezier(.4,0,.2,1)}.hover-lift-intense:hover{transform:translateY(-12px) scale(1.03);box-shadow:var(--shadow-2xl),0 0 40px var(--accent-light)}.hover-glow-spread{position:relative;overflow:hidden}.hover-glow-spread:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:radial-gradient(circle,var(--accent-light) 0%,transparent 70%);transition:all .6s ease;transform:translate(-50%,-50%);border-radius:50%}.hover-glow-spread:hover:before{width:300%;height:300%}.glass-intense{background:var(--card-bg-glass);backdrop-filter:blur(25px);-webkit-backdrop-filter:blur(25px);border:1px solid var(--card-border);box-shadow:var(--shadow-xl),inset 0 1px 0 var(--glass-border)}.beautiful-scroll::-webkit-scrollbar{width:8px}.beautiful-scroll::-webkit-scrollbar-track{background:var(--card-bg-glass);border-radius:var(--radius-full)}.beautiful-scroll::-webkit-scrollbar-thumb{background:var(--gradient-primary);border-radius:var(--radius-full);transition:all .3s ease}.beautiful-scroll::-webkit-scrollbar-thumb:hover{background:var(--gradient-primary);transform:scale(1.1)}.sidebar{position:fixed;top:0;left:0;width:280px;height:100vh;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-right:1px solid var(--glass-border);padding:2rem 0;transition:transform .3s cubic-bezier(.77,0,.175,1),all .3s ease;z-index:1000;overflow-y:auto;overflow-x:hidden;box-shadow:var(--shadow-lg)}body.quiz-fullscreen .sidebar,body.quiz-fullscreen .sidebar-toggle{display:none!important;visibility:hidden!important;opacity:0!important;pointer-events:none!important}.sidebar-header{padding:0 2rem 1rem;text-align:center;border-bottom:1px solid var(--glass-border);margin-bottom:1rem;position:relative}.sidebar-header:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:80px;height:2px;background:linear-gradient(90deg,var(--primary-color, #8B4513),var(--accent-color, #D2B48C));border-radius:1px}.sidebar-title{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary-color, #8B4513),var(--accent-color, #D2B48C));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.user-info{margin-top:1rem;padding:1rem;background:var(--accent-light);border-radius:12px;border:1px solid var(--glass-border)}.user-name{font-weight:600;color:var(--text-color, #333);font-size:1.1rem;margin-bottom:.3rem}.user-role{font-size:.9rem;color:var(--text-secondary);padding:.3rem .8rem;background:var(--accent-light);border-radius:15px;border:1px solid var(--card-border);display:inline-block}.sidebar-nav{padding:0 1rem;flex:1}.nav-section{margin-bottom:2rem}.nav-section-title{font-size:.8rem;font-weight:600;color:var(--text-secondary, #666);text-transform:uppercase;letter-spacing:1px;margin-bottom:1rem;padding:0 1rem}.nav-menu{list-style:none;padding:0;margin:0}.nav-item{margin-bottom:.5rem}.nav-link{display:flex;align-items:center;gap:1rem;padding:1rem 1.5rem;color:var(--text-color, #333);text-decoration:none;border-radius:12px;transition:all .3s ease;position:relative;overflow:hidden;font-weight:500}.nav-link:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--accent-light),transparent);transition:left .5s ease}.nav-link:hover:before{left:100%}.nav-link:hover{background:var(--accent-light);color:var(--accent);transform:translate(5px);box-shadow:var(--shadow-md)}.nav-link.active{background:var(--accent-light);color:var(--accent);border:1px solid var(--card-border);box-shadow:var(--shadow-md)}.nav-icon{font-size:1.2rem;width:20px;text-align:center}.role-toggle{padding:1rem 2rem;border-top:1px solid var(--glass-border);margin-top:auto}.role-toggle-title{font-size:.9rem;font-weight:600;color:var(--text-secondary, #666);margin-bottom:1rem;text-align:center}.role-buttons{display:flex;gap:.5rem}.role-btn{flex:1;padding:.7rem;border:1px solid var(--card-border);border-radius:8px;background:var(--card-bg-glass);color:var(--text-color);font-size:.8rem;font-weight:500;cursor:pointer;transition:all .3s ease}.role-btn:hover{background:var(--accent-light);color:var(--accent);transform:translateY(-2px)}.role-btn.active{background:var(--gradient-primary);color:var(--text-light);border-color:var(--accent)}.logout-btn{width:calc(100% - 2rem);margin:1rem;padding:1rem;background:var(--gradient-danger);color:var(--text-light);border:none;border-radius:12px;font-weight:600;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden}.logout-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left .5s ease}.logout-btn:hover:before{left:100%}.logout-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl)}.sidebar-toggle{display:none;position:fixed;top:1rem;left:1rem;z-index:1001;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:12px;padding:.8rem;color:var(--accent);font-size:1.2rem;cursor:pointer;transition:all .3s ease}.sidebar-toggle:hover{background:var(--accent-light);transform:scale(1.1)}@media (max-width: 768px){.sidebar-toggle{display:block}.sidebar{transform:translate(-100%);width:100%;max-width:280px}.sidebar.open{transform:translate(0);z-index:1202!important;box-shadow:var(--shadow-xl);padding-bottom:72px}.sidebar *,.sidebar.open *{-webkit-user-select:auto!important;-moz-user-select:auto!important;-ms-user-select:auto!important;user-select:auto!important;-webkit-tap-highlight-color:rgba(0,0,0,.1)!important;-webkit-touch-callout:default!important}.sidebar button,.sidebar a,.sidebar input,.sidebar select,.sidebar textarea,.sidebar [onclick],.sidebar [role=button],.sidebar.open button,.sidebar.open a,.sidebar.open input,.sidebar.open select,.sidebar.open textarea,.sidebar.open [onclick],.sidebar.open [role=button]{pointer-events:auto!important;user-select:auto!important;cursor:pointer!important;-webkit-user-select:auto!important;-moz-user-select:auto!important;-ms-user-select:auto!important;-webkit-tap-highlight-color:rgba(0,0,0,.1)!important;-webkit-touch-callout:default!important}.sidebar-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--shadow);z-index:998;opacity:0;visibility:hidden;transition:all .3s ease}.sidebar-overlay.active{opacity:1;visibility:visible}}@media (max-width: 480px){.sidebar{width:100%;padding:1.5rem 0}.sidebar-header{padding:0 1.5rem 1.5rem}.sidebar-nav{padding:0 .8rem}.nav-link{padding:.8rem 1rem;font-size:.9rem}.role-toggle{padding:1rem 1.5rem}}.sidebar.open{transform:translate(0)}#title h2{color:var(--color-title);font-size:1.3rem;font-weight:700;margin:0 0 var(--space-sm) 0;padding-bottom:var(--space-xs);border-bottom:2px solid transparent;border-image:var(--gradient-primary) 1;width:calc(100% - 12px);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative}#title h2:after{content:"";position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:var(--gradient-primary);border-radius:var(--radius-sm)}.sidebar nav{display:flex;flex-direction:column;gap:var(--space-xs);width:100%;flex:1;padding-top:var(--space-sm)}.sidebar a{color:var(--color-text-primary);text-decoration:none;padding:var(--space-sm) var(--space-md);font-size:.9rem;font-weight:500;transition:all var(--transition-normal);display:flex;align-items:center;gap:var(--space-xs);border-radius:var(--radius-md);width:calc(100% - 6px);margin-left:3px;margin-bottom:var(--space-xs);position:relative;background:transparent;border:1px solid transparent;min-height:38px;-webkit-tap-highlight-color:transparent;touch-action:manipulation;-webkit-user-select:none;user-select:none}.sidebar a:before{content:"";display:inline-block;width:6px;height:6px;background:var(--gradient-primary);border-radius:50%;margin-right:var(--space-xs);opacity:0;transition:all var(--transition-normal);transform:scale(0)}.sidebar a:hover{background:var(--color-link-hover-bg);transform:translate(4px) scale(1.02);box-shadow:var(--shadow-md);border-color:var(--accent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.sidebar a:hover:before{opacity:1;transform:scale(1)}.sidebar a:active{background:var(--color-link-hover-bg);transform:translate(2px) 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a.intelligence-link:after{display:none!important}.sidebar a.intelligence-link:hover{background:var(--color-link-hover-bg)!important;border-color:var(--accent)!important;color:var(--color-text-primary)!important;transform:translate(4px) scale(1.02)!important;box-shadow:var(--shadow-md)!important}.logout-btn{margin-top:auto;padding:var(--space-md) var(--space-lg);background:var(--color-logout-bg);color:var(--color-logout-text);border:none;width:calc(100% - 12px);cursor:pointer;font-size:.95rem;border-radius:var(--radius-lg);font-weight:600;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:var(--space-sm);margin-left:6px;margin-bottom:var(--space-lg);min-height:42px;box-shadow:var(--shadow-md)}.logout-btn:hover{background:var(--color-logout-hover-bg);transform:translateY(-2px);box-shadow:0 6px 16px var(--color-logout-hover-shadow)}.sidebar-role-switch-btn{margin-top:1rem;width:100%}.sidebar button:not(.logout-btn){color:var(--color-text-primary);text-decoration:none;padding:var(--space-sm) var(--space-md);font-size:.9rem;font-weight:500;transition:all var(--transition-normal);display:flex;align-items:center;gap:var(--space-xs);border-radius:var(--radius-md);width:calc(100% - 6px);margin-left:3px;margin-bottom:var(--space-sm);margin-top:var(--space-md);position:relative;background:var(--glass-bg);border:1px solid var(--glass-border);cursor:pointer;text-align:left;min-height:38px;justify-content:flex-start}.sidebar button:not(.logout-btn):hover{background:var(--color-link-hover-bg);transform:translate(4px) scale(1.02);box-shadow:var(--shadow-md);border-color:var(--accent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.sidebar-toggle{position:fixed;top:var(--space-md);left:var(--space-md);background:var(--color-toggle-bg);color:var(--color-toggle-text);border:none;padding:var(--space-md) 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var(--card-border)}.shortcuts-list{display:flex;flex-direction:column;gap:.75rem}.shortcut-item{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem;background:var(--bg-secondary);border-radius:var(--radius-lg);transition:all .2s ease}.shortcut-item:hover{background:var(--accent-light);transform:translate(5px)}.shortcut-keys{display:flex;align-items:center;gap:.25rem;flex-shrink:0}kbd.key{display:inline-block;padding:.25rem .5rem;background:var(--bg-dark);border:1px solid var(--card-border);border-radius:var(--radius-md);font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.85rem;font-weight:600;color:var(--text-light);box-shadow:0 2px 4px #0003;min-width:28px;text-align:center}.key-separator{color:var(--text-secondary);font-weight:600;margin:0 .25rem}.shortcut-description{color:var(--text-color);font-size:.9rem;flex:1;text-align:right}.shortcuts-footer{padding:1.5rem;border-top:2px solid var(--card-border);display:flex;flex-direction:column;align-items:center;gap:1rem}.shortcuts-hint{margin:0;color:var(--text-secondary);font-size:.9rem;text-align:center}.shortcuts-hint kbd{display:inline-block;padding:.2rem .4rem;background:var(--bg-dark);border:1px solid var(--card-border);border-radius:var(--radius-md);font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.85rem;font-weight:600;color:var(--accent)}.close-shortcuts-btn-large{background:var(--gradient-primary);color:var(--text-light);border:none;padding:.75rem 2rem;border-radius:var(--radius-lg);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-md)}.close-shortcuts-btn-large:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);filter:brightness(1.1)}@media (max-width: 768px){.keyboard-shortcuts-toggle,.shortcuts-modal-overlay{display:none!important}}.shortcuts-modal::-webkit-scrollbar{width:8px}.shortcuts-modal::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:4px}.shortcuts-modal::-webkit-scrollbar-thumb{background:var(--accent);border-radius:4px}.shortcuts-modal::-webkit-scrollbar-thumb:hover{background:var(--accent2)}.container{background:var(--card-bg-glass);backdrop-filter:blur(25px);-webkit-backdrop-filter:blur(25px);border:1px solid var(--card-border);padding:var(--space-lg);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl),0 0 30px var(--accent-light),inset 0 1px 0 var(--glass-border);margin:var(--space-md) 0;margin-top:calc(var(--space-lg) + var(--space-md));min-height:40vh;transition:all var(--transition-normal);position:relative;overflow:hidden;max-width:1200px;margin-left:auto;margin-right:auto}.container:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl),0 0 40px var(--accent-light),inset 0 1px 0 var(--glass-border);border-color:var(--accent-light)}.main-content{min-height:100vh;padding:var(--space-xl);transition:all .3s cubic-bezier(.25,.46,.45,.94);box-sizing:border-box}body.quiz-fullscreen .main-content{padding:0!important;margin:0!important;min-height:100vh!important;width:100vw!important;max-width:100vw!important}@media (max-width: 1024px){.main-content{padding:var(--space-sm)}}@media (max-width: 992px){.main-content{margin-left:0;padding:var(--space-md);padding-top:calc(50px + var(--space-sm));padding-bottom:calc(80px + var(--space-sm) + env(safe-area-inset-bottom,0px))}}.container:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--gradient-primary);opacity:.6}.container:hover{transform:translateY(-3px) scale(1.003);box-shadow:var(--shadow-2xl),0 0 50px var(--accent-light),inset 0 1px 0 var(--glass-border);border-color:var(--accent)}.table-container{min-height:40vh;background:var(--glass-bg);border-radius:var(--radius-lg);padding:var(--space-md);border:1px solid var(--glass-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);overflow:auto}.table-container table{width:100%;border-collapse:separate;border-spacing:0;background:transparent}.table-container th{background:var(--gradient-primary);color:var(--text-light);padding:var(--space-md) var(--space-lg);font-weight:600;text-transform:uppercase;letter-spacing:.05em;font-size:.875rem;border:none;position:sticky;top:0;z-index:10}.table-container th:first-child{border-top-left-radius:var(--radius-lg)}.table-container th:last-child{border-top-right-radius:var(--radius-lg)}.table-container td{padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border-color);background:var(--card-bg-glass);transition:all var(--transition-fast)}.table-container tr:hover td{background:var(--accent-light);transform:scale(1.01)}.table-container tr:last-child td:first-child{border-bottom-left-radius:var(--radius-lg)}.table-container tr:last-child td:last-child{border-bottom-right-radius:var(--radius-lg)}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-lg);margin:var(--space-2xl) 0}.stat-card{background:var(--gradient-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius-2xl);padding:var(--space-2xl);text-align:center;position:relative;overflow:hidden}.stat-card h3{font-size:1rem;font-weight:600;color:var(--text-muted);margin-bottom:var(--space-sm);text-transform:uppercase;letter-spacing:.1em}.stat-card p{font-size:3rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0;line-height:1}.start-quiz-btn{background:var(--gradient-primary);color:var(--text-light);border:none;border-radius:var(--radius-2xl);padding:var(--space-lg) var(--space-2xl);font-size:1.25rem;font-weight:700;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-xl);text-transform:uppercase;letter-spacing:.05em;position:relative;overflow:hidden}.start-quiz-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left var(--transition-slow)}.start-quiz-btn:hover:before{left:100%}.start-quiz-btn:hover{transform:translateY(-4px) scale(1.05);box-shadow:var(--shadow-2xl),0 0 40px var(--accent-light)}.start-quiz-btn:active{transform:translateY(-2px) scale(1.02)}.page-header{text-align:center;margin-bottom:var(--space-lg);padding:var(--space-lg) 0}.page-header h1{font-size:2.5rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-md);text-shadow:0 4px 8px var(--shadow)}.page-header p{font-size:1rem;color:var(--text-muted);max-width:600px;margin:0 auto;line-height:1.6}.loading{display:flex;align-items:center;justify-content:center;min-height:200px;font-size:1.125rem;color:var(--text-muted)}.loading:after{content:"";width:20px;height:20px;border:2px solid var(--accent-light);border-top:2px solid var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin-left:var(--space-sm)}.error-message{background:var(--danger-light);border:1px solid var(--danger);color:var(--danger);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-lg);margin:var(--space-md) 0;font-weight:600}@media (max-width: 768px){.main-content{margin-left:0;margin-top:0;padding:var(--space-xs);padding-top:calc(40px + var(--space-xs));padding-bottom:calc(70px + var(--space-xs) + env(safe-area-inset-bottom,0px));min-height:calc(100vh - 50px)}.container{padding:var(--space-sm);margin:0;min-height:auto;border-radius:var(--radius-md)}.start-quiz-btn{width:100%;padding:var(--space-sm);font-size:1rem}}@media (max-width: 480px){.main-content{padding:var(--space-xs);padding-top:calc(35px + var(--space-xs));padding-bottom:calc(65px + var(--space-xs) + env(safe-area-inset-bottom,0px))}.container{padding:var(--space-xs);margin:0;border-radius:var(--radius-sm)}}@media (max-width: 320px){.main-content{padding:.2rem;padding-top:calc(30px + .2rem);padding-bottom:calc(60px + .2rem + env(safe-area-inset-bottom,0px))}.container{padding:.2rem;margin:0}}.notification-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--bg-dark);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);display:grid!important;place-items:center!important;place-content:center!important;z-index:10000;padding:var(--space-md);margin:0;box-sizing:border-box;animation:fadeIn .3s ease}width: 100vw; height: 100vh; } .notification-modal-content{background:var(--bg-dark);-webkit-backdrop-filter:blur(30px);backdrop-filter:blur(30px);border-radius:24px;padding:5rem 3.5rem 4rem;max-width:500px;width:100%;text-align:center;overflow:hidden;transform-style:preserve-3d;margin:2rem;perspective:1000px;margin:0 auto;box-sizing:border-box;box-shadow:var(--shadow-2xl),0 0 40px var(--success-light);border:2px solid var(--success);position:relative;left:auto;right:auto;transform:none}.notification-header{position:absolute;top:0;left:0;right:0;height:4px;border-radius:var(--radius-xl) var(--radius-xl) 0 0}.notification-icon{font-size:4rem;margin-bottom:2rem;display:flex;justify-content:center;align-items:center;height:120px;width:120px;margin:1.5rem auto 2rem;background:var(--success-light);border-radius:50%;border:3px solid var(--success);box-shadow:0 0 30px var(--success-light);animation:iconPulse 2s ease-in-out infinite}@keyframes iconPulse{0%,to{transform:scale(1);box-shadow:0 0 30px var(--success-light)}50%{transform:scale(1.05);box-shadow:0 0 40px var(--success-light)}}.notification-message{font-size:1.25rem;line-height:1.8;color:var(--text-primary);margin-bottom:1.5rem;margin-top:.5rem;font-weight:600;text-shadow:var(--shadow-sm);letter-spacing:.3px;padding:0 1rem}.notification-close-btn{position:absolute;top:1rem;right:1rem;background:var(--danger-light);border:2px solid var(--danger);font-size:1.4rem;color:var(--danger);cursor:pointer;padding:0;border-radius:12px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;transition:all .3s ease;font-weight:300;line-height:1;transition:all var(--transition-normal);z-index:10}.notification-close-btn:hover{background:var(--danger-light);color:var(--text-light);transform:scale(1.1) rotate(90deg);box-shadow:var(--shadow-lg)}.notification-progress{position:absolute;bottom:0;left:0;height:3px;border-radius:0 0 var(--radius-xl) var(--radius-xl);transform-origin:left}.notification-particle{position:absolute;width:6px;height:6px;border-radius:50%;pointer-events:none}.notification-particle-1{top:20%;left:15%}.notification-particle-2{top:30%;right:20%}.notification-particle-3{bottom:25%;left:25%}@media (max-width: 768px){.notification-modal-overlay{padding:var(--space-sm);display:grid!important;place-items:center!important;place-content:center!important}.notification-modal-content{padding:3.5rem 2rem 3rem;max-width:90vw;left:auto;right:auto;transform:none;margin:1.5rem auto;position:relative;border-radius:20px}.notification-icon{font-size:3.5rem;height:100px;width:100px;margin:1.25rem auto 1.75rem}.notification-message{font-size:1.1rem;margin-bottom:1rem;margin-top:.5rem;padding:0 .5rem;line-height:1.7}.notification-close-btn{width:36px;height:36px;font-size:1.3rem;top:.75rem;right:.75rem}}@media (max-width: 480px){.notification-modal-overlay{display:grid!important;place-items:center!important;place-content:center!important}.notification-modal-content{padding:3rem 1.75rem 2.5rem;left:auto;right:auto;transform:none;margin:1rem auto;max-width:95vw;position:relative;border-radius:18px}.notification-icon{font-size:3rem;height:90px;width:90px;margin:1rem auto 1.5rem}.notification-message{font-size:1rem;margin-bottom:.75rem;margin-top:.5rem;padding:0 .25rem;line-height:1.6}.notification-close-btn{width:34px;height:34px;font-size:1.2rem;top:.5rem;right:.5rem}}.enhanced-spinner-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:80vh;width:100%;background:radial-gradient(circle at 20% 20%,var(--accent-light) 0%,transparent 50%),radial-gradient(circle at 80% 80%,var(--accent-light) 0%,transparent 50%),var(--bg-dark);position:relative;overflow:hidden}.enhanced-loading-container{display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.enhanced-loading-spinner{width:80px;height:80px;position:relative;margin-bottom:2rem}.enhanced-spinner-ring{width:100%;height:100%;border:4px solid var(--accent-light);border-top:4px solid var(--accent);border-radius:50%;background:var(--gradient-primary);filter:drop-shadow(0 0 20px var(--accent-light))}.enhanced-loading-text{font-size:1.2rem;color:var(--text-color);font-weight:500;letter-spacing:.5px}.spinner-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:200px;gap:var(--space-md)}.spinner{width:50px;height:50px;border:2px solid var(--accent-light);border-top:2px solid var(--accent);border-radius:50%;position:relative;background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-lg),inset 0 0 15px var(--accent-light),0 0 20px var(--accent-light)}.spinner-inner{width:30px;height:30px;border:2px solid transparent;border-top:2px solid var(--accent2);border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.spinner-message{color:var(--text-muted);font-size:1rem;font-weight:500;text-align:center;letter-spacing:.05em}.spinner-message:after{content:"";animation:dots 1.5s steps(3,end) infinite}@keyframes dots{0%,20%{content:"."}40%{content:".."}60%,to{content:"..."}}.loading-wrapper{position:relative;width:100%;display:flex;align-items:center;justify-content:center;z-index:9999;background:var(--bg-dark)}.loading-fullscreen{position:fixed;top:0;left:0;right:0;bottom:0;width:100vw;height:100vh;min-height:100vh;overflow:hidden;display:flex;align-items:center;justify-content:center}.loading-inline{min-height:400px;padding:2rem}.loading-background{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden;z-index:0}.loading-gradient-orb{position:absolute;border-radius:50%;filter:blur(100px);opacity:.5;animation:floatOrb 10s ease-in-out infinite}.loading-orb-1{width:400px;height:400px;background:var(--gradient-primary);top:10%;left:10%;animation-delay:0s}.loading-orb-2{width:350px;height:350px;background:var(--gradient-primary);top:60%;right:15%;animation-delay:2.5s}.loading-orb-3{width:300px;height:300px;background:var(--gradient-primary);bottom:20%;left:50%;animation-delay:5s}.loading-orb-4{width:250px;height:250px;background:var(--gradient-primary);top:50%;left:30%;animation-delay:7.5s}@media (min-width: 1024px){.loading-gradient-orb{filter:blur(120px);opacity:.6}.loading-orb-1{width:600px;height:600px}.loading-orb-2{width:500px;height:500px}.loading-orb-3{width:450px;height:450px}.loading-orb-4{width:400px;height:400px}}@media (min-width: 1440px){.loading-gradient-orb{filter:blur(150px);opacity:.7}.loading-orb-1{width:800px;height:800px}.loading-orb-2{width:700px;height:700px}.loading-orb-3{width:600px;height:600px}.loading-orb-4{width:550px;height:550px}}@keyframes floatOrb{0%,to{transform:translate(0) scale(1)}25%{transform:translate(40px,-40px) scale(1.15)}50%{transform:translate(-30px,30px) scale(.9)}75%{transform:translate(30px,40px) scale(1.1)}}.loading-container{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:100%;height:100%;margin:0;padding:0}.loading-large{width:100%;max-width:600px}.loading-medium{width:100%;max-width:400px}.loading-small{width:100%;max-width:300px}.loading-glass-card{background:var(--card-bg-glass);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);border:1px solid var(--card-border);border-radius:40px;padding:5rem 4rem;box-shadow:var(--shadow-2xl),0 0 0 1px var(--glass-border) inset,0 0 120px var(--accent-light),inset 0 0 60px var(--accent-light);position:relative;overflow:visible;display:flex;align-items:center;justify-content:center;margin:0 auto;transition:transform .3s ease}@media (min-width: 1024px){.loading-glass-card{padding:6rem 5rem;border-radius:50px;box-shadow:var(--shadow-2xl),0 0 0 1px var(--glass-border) inset,0 0 150px var(--accent-light),inset 0 0 80px var(--accent-light)}}@media (min-width: 1440px){.loading-glass-card{padding:7rem 6rem;border-radius:60px;box-shadow:var(--shadow-2xl),0 0 0 2px var(--glass-border) inset,0 0 180px var(--accent-light),inset 0 0 100px var(--accent-light)}}.loading-glass-card:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent 30%,var(--glass-border) 50%,transparent 70%);animation:shimmer 4s infinite}@keyframes shimmer{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-spinner-wrapper{position:relative;width:180px;height:180px;margin:0;display:flex;align-items:center;justify-content:center;flex-shrink:0}@media (min-width: 1024px){.loading-spinner-wrapper{width:240px;height:240px}}@media (min-width: 1440px){.loading-spinner-wrapper{width:280px;height:280px}}.loading-spinner-outer{position:absolute;width:100%;height:100%;top:0;left:0}.loading-spinner-ring{width:100%;height:100%;border:5px solid transparent;border-top:5px solid var(--accent);border-right:5px solid var(--accent2);border-radius:50%;background:conic-gradient(from 0deg,var(--accent) 0%,var(--accent2) 20%,var(--accent2) 40%,var(--accent) 60%,var(--info) 80%,var(--accent) 100%);filter:drop-shadow(0 0 30px var(--accent-light));box-shadow:0 0 50px var(--accent-light),inset 0 0 30px var(--accent-light)}.loading-spinner-middle{position:absolute;width:75%;height:75%;top:12.5%;left:12.5%}.loading-spinner-ring-middle{width:100%;height:100%;border:4px solid transparent;border-top:4px solid var(--accent2);border-right:4px solid var(--accent);border-radius:50%;background:conic-gradient(from 180deg,var(--accent2) 0%,var(--accent) 30%,var(--info) 60%,var(--info) 100%);filter:drop-shadow(0 0 25px var(--accent-light));box-shadow:0 0 40px var(--accent-light),inset 0 0 25px var(--accent-light)}.loading-spinner-inner{position:absolute;width:50%;height:50%;top:25%;left:25%}.loading-spinner-core{width:100%;height:100%;border:3px solid transparent;border-top:3px solid var(--info);border-right:3px solid var(--info);border-radius:50%;background:conic-gradient(from 90deg,var(--info) 0%,var(--info) 50%,var(--accent) 100%);filter:drop-shadow(0 0 20px var(--info-light));box-shadow:0 0 30px var(--info-light),inset 0 0 20px var(--info-light)}.loading-spinner-center{position:absolute;width:30px;height:30px;top:50%;left:50%;transform:translate(-50%,-50%);z-index:10}.loading-spinner-dot{width:100%;height:100%;background:radial-gradient(circle,var(--text-light) 0%,var(--accent) 100%);border-radius:50%;box-shadow:0 0 30px var(--text-light),0 0 60px var(--accent-light),0 0 90px var(--accent-light),inset 0 0 15px var(--glass-border)}@media (min-width: 1024px){.loading-spinner-center{width:40px;height:40px}.loading-spinner-dot{box-shadow:0 0 40px var(--text-light),0 0 80px var(--accent-light),0 0 120px var(--accent-light),0 0 160px var(--accent-light),inset 0 0 20px var(--glass-border)}}@media (min-width: 1440px){.loading-spinner-center{width:50px;height:50px}.loading-spinner-dot{box-shadow:0 0 50px var(--text-light),0 0 100px var(--accent-light),0 0 150px var(--accent-light),0 0 200px var(--accent-light),inset 0 0 25px var(--glass-border)}}.loading-particles{position:absolute;width:100%;height:100%;top:0;left:0}.particle{position:absolute;width:8px;height:8px;background:radial-gradient(circle,var(--text-light),var(--accent-light));border-radius:50%;box-shadow:0 0 15px var(--accent-light);animation:particleOrbit 4s linear infinite}@media (min-width: 1024px){.particle{width:10px;height:10px;box-shadow:0 0 20px var(--accent-light);animation:particleOrbitDesktop 4s linear infinite}@keyframes particleOrbitDesktop{0%{transform:rotate(0) translate(120px) rotate(0);opacity:1}50%{opacity:.6}to{transform:rotate(360deg) translate(120px) rotate(-360deg);opacity:1}}}@media (min-width: 1440px){.particle{width:12px;height:12px;box-shadow:0 0 25px var(--accent-light);animation:particleOrbitLargeDesktop 4s linear infinite}@keyframes particleOrbitLargeDesktop{0%{transform:rotate(0) translate(140px) rotate(0);opacity:1}50%{opacity:.7}to{transform:rotate(360deg) translate(140px) rotate(-360deg);opacity:1}}}.particle-1{top:0;left:50%;animation-delay:0s}.particle-2{top:50%;right:0;animation-delay:.67s}.particle-3{bottom:0;left:50%;animation-delay:1.33s}.particle-4{top:50%;left:0;animation-delay:2s}.particle-5{top:15%;right:15%;animation-delay:.33s}.particle-6{bottom:15%;left:15%;animation-delay:1s}@keyframes particleOrbit{0%{transform:rotate(0) translate(90px) rotate(0);opacity:1}50%{opacity:.5}to{transform:rotate(360deg) translate(90px) rotate(-360deg);opacity:1}}@media (min-width: 1024px){.loading-wrapper{background:var(--bg-dark);background-size:200% 200%;animation:backgroundShift 15s ease infinite}@keyframes backgroundShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.loading-spinner-ring{filter:drop-shadow(0 0 40px var(--accent-light));box-shadow:0 0 70px var(--accent-light),inset 0 0 40px var(--accent-light)}.loading-spinner-ring-middle{filter:drop-shadow(0 0 35px var(--accent-light));box-shadow:0 0 60px var(--accent-light),inset 0 0 35px var(--accent-light)}.loading-spinner-core{filter:drop-shadow(0 0 30px var(--info-light));box-shadow:0 0 50px var(--info-light),inset 0 0 30px var(--info-light)}}@media (min-width: 1440px){.loading-wrapper{background-size:300% 300%}.loading-spinner-ring{filter:drop-shadow(0 0 50px var(--accent-light));box-shadow:0 0 90px var(--accent-light),inset 0 0 50px var(--accent-light)}.loading-spinner-ring-middle{filter:drop-shadow(0 0 45px var(--accent-light));box-shadow:0 0 80px var(--accent-light),inset 0 0 45px var(--accent-light)}.loading-spinner-core{filter:drop-shadow(0 0 40px var(--info-light));box-shadow:0 0 70px var(--info-light),inset 0 0 40px var(--info-light)}.loading-particles:before,.loading-particles:after{content:"";position:absolute;width:8px;height:8px;background:radial-gradient(circle,var(--text-light),var(--accent-light));border-radius:50%;box-shadow:0 0 20px var(--accent-light);animation:particleOrbitLargeDesktop 5s linear infinite}.loading-particles:before{top:25%;left:25%;animation-delay:.5s}.loading-particles:after{bottom:25%;right:25%;animation-delay:1.5s}}@media (max-width: 768px){.loading-glass-card{padding:4rem 3rem;border-radius:32px}.loading-spinner-wrapper{width:150px;height:150px}.loading-spinner-center{width:25px;height:25px}.loading-orb-1,.loading-orb-2,.loading-orb-3,.loading-orb-4{filter:blur(70px)}.particle{width:6px;height:6px}@keyframes particleOrbit{0%{transform:rotate(0) translate(75px) rotate(0)}to{transform:rotate(360deg) translate(75px) rotate(-360deg)}}}@media (max-width: 480px){.loading-glass-card{padding:3rem 2rem;border-radius:24px}.loading-spinner-wrapper{width:120px;height:120px}.loading-spinner-center{width:20px;height:20px}.particle{width:5px;height:5px}@keyframes particleOrbit{0%{transform:rotate(0) translate(60px) rotate(0)}to{transform:rotate(360deg) translate(60px) rotate(-360deg)}}}.loading-small .loading-glass-card{padding:3rem 2rem}.loading-small .loading-spinner-wrapper{width:120px;height:120px}.loading-medium .loading-glass-card{padding:4rem 3rem}.loading-medium .loading-spinner-wrapper{width:150px;height:150px}.google-auth-container{position:fixed;top:0;left:0;width:100vw;height:100vh;overflow:hidden;z-index:10000}.google-auth-bg-gradient{position:absolute;top:0;left:0;width:100%;height:100%;background:var(--gradient-primary);background-size:200% 200%;animation:gradientShift 8s ease infinite}.google-auth-floating-orbs{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden;pointer-events:none}.google-auth-orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.4;animation:float 20s ease-in-out infinite}.google-auth-orb.orb-1{width:300px;height:300px;background:radial-gradient(circle,var(--accent-light) 0%,transparent 70%);top:10%;left:10%;animation-delay:0s}.google-auth-orb.orb-2{width:400px;height:400px;background:radial-gradient(circle,var(--accent-light) 0%,transparent 70%);top:60%;right:10%;animation-delay:5s}.google-auth-orb.orb-3{width:250px;height:250px;background:radial-gradient(circle,var(--accent-light) 0%,transparent 70%);bottom:20%;left:50%;animation-delay:10s}@keyframes float{0%,to{transform:translate(0) scale(1)}33%{transform:translate(30px,-30px) scale(1.1)}66%{transform:translate(-20px,20px) scale(.9)}}.google-auth-content{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center;z-index:1}.google-auth-card{background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:2rem;padding:3rem 4rem;border:1px solid var(--card-border);box-shadow:var(--shadow-2xl),0 0 0 1px var(--glass-border) inset;display:flex;flex-direction:column;align-items:center;gap:2rem;max-width:500px;width:90%;position:relative;overflow:hidden}.google-auth-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);animation:shimmer 3s ease-in-out infinite}@keyframes shimmer{0%,to{transform:translate(-100%)}50%{transform:translate(100%)}}.google-logo-container{position:relative;padding:1rem;background:var(--card-bg-glass);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg)}.google-logo{filter:drop-shadow(0 4px 8px rgba(0,0,0,.2));animation:logoPulse 2s ease-in-out infinite}@keyframes logoPulse{0%,to{transform:scale(1);filter:drop-shadow(0 4px 8px rgba(0,0,0,.2))}50%{transform:scale(1.05);filter:drop-shadow(0 6px 12px var(--shadow-lg))}}.google-auth-spinner{position:relative;width:80px;height:80px;display:flex;align-items:center;justify-content:center}.spinner-ring{position:absolute;border-radius:50%;border:3px solid transparent}.spinner-ring.ring-1{width:80px;height:80px;border-top:3px solid #4285F4;border-right:3px solid #4285F4;animation:spin 1.5s linear infinite;filter:drop-shadow(0 0 10px rgba(66,133,244,.5))}.spinner-ring.ring-2{width:60px;height:60px;top:10px;left:10px;border-bottom:3px solid var(--success);border-left:3px solid var(--success);animation:spin 1s linear infinite reverse;filter:drop-shadow(0 0 8px var(--success-light))}.spinner-ring.ring-3{width:40px;height:40px;top:20px;left:20px;border-top:2px solid #FBBC05;border-right:2px solid #EA4335;animation:spin .8s linear infinite;filter:drop-shadow(0 0 6px rgba(251,188,5,.5))}.google-auth-text{text-align:center;display:flex;flex-direction:column;gap:.5rem}.google-auth-title{font-size:1.75rem;font-weight:700;color:#fff;margin:0;background:linear-gradient(135deg,#fff,#fffc);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 2px 10px rgba(255,255,255,.3);animation:textGlow 2s ease-in-out infinite}@keyframes textGlow{0%,to{filter:brightness(1)}50%{filter:brightness(1.2)}}.google-auth-subtitle{font-size:1rem;color:var(--text-muted);margin:0;font-weight:400;letter-spacing:.5px}@media (max-width: 768px){.google-auth-card{padding:2.5rem 2rem;gap:1.5rem}.google-logo-container{padding:.75rem}.google-logo{width:48px;height:48px}.google-auth-spinner,.spinner-ring.ring-1{width:60px;height:60px}.spinner-ring.ring-2{width:45px;height:45px;top:7.5px;left:7.5px}.spinner-ring.ring-3{width:30px;height:30px;top:15px;left:15px}.google-auth-title{font-size:1.5rem}.google-auth-subtitle{font-size:.9rem}.google-auth-orb.orb-1{width:200px;height:200px}.google-auth-orb.orb-2{width:250px;height:250px}.google-auth-orb.orb-3{width:180px;height:180px}}@media (max-width: 480px){.google-auth-card{padding:2rem 1.5rem;gap:1.25rem;border-radius:1.5rem}.google-auth-title{font-size:1.25rem}.google-auth-subtitle{font-size:.85rem}}@media (min-width: 1440px){.google-auth-card{padding:4rem 5rem}.google-logo-container{padding:1.25rem}.google-logo{width:72px;height:72px}.google-auth-spinner,.spinner-ring.ring-1{width:100px;height:100px}.spinner-ring.ring-2{width:75px;height:75px;top:12.5px;left:12.5px}.spinner-ring.ring-3{width:50px;height:50px;top:25px;left:25px}}.offline-banner{position:fixed;top:0;left:0;right:0;z-index:10000;padding:12px 16px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;animation:slideDown .3s ease-out}@keyframes slideDown{0%{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}.offline-banner.offline{background:var(--gradient-danger);color:var(--text-light);box-shadow:var(--shadow-lg)}.offline-banner.slow-connection{background:var(--gradient-warning);color:var(--text-light);box-shadow:var(--shadow-lg)}.offline-banner-content{display:flex;align-items:center;max-width:1200px;margin:0 auto;gap:12px}.offline-icon{font-size:20px;flex-shrink:0}.offline-text{display:flex;flex-direction:column;flex-grow:1;min-width:0}.offline-status{font-weight:600;font-size:14px;margin-bottom:2px}.offline-message{font-size:12px;opacity:.9;line-height:1.3}.retry-connection-btn{background:var(--card-bg-glass);border:none;color:var(--text-light);padding:8px;border-radius:50%;cursor:pointer;font-size:14px;transition:all .2s ease;flex-shrink:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center}.retry-connection-btn:hover{background:var(--card-bg-glass);transform:rotate(180deg)}.retry-connection-btn:active{transform:rotate(180deg) scale(.95)}@media (max-width: 768px){.offline-banner{padding:10px 12px}.offline-banner-content{gap:8px}.offline-icon{font-size:18px}.offline-status{font-size:13px}.offline-message{font-size:11px}.retry-connection-btn{width:28px;height:28px;font-size:12px}}@media (prefers-color-scheme: dark){.offline-banner.offline{background:linear-gradient(135deg,#d32f2f,#c62828)}.offline-banner.slow-connection{background:var(--gradient-warning)}}@media (prefers-contrast: high){.offline-banner{border-bottom:2px solid currentColor}.offline-banner.offline{background:var(--danger);color:var(--text-light)}.offline-banner.slow-connection{background:var(--warning);color:var(--text-color)}}@media (prefers-reduced-motion: reduce){.offline-banner{animation:none}.retry-connection-btn:hover{transform:none}.retry-connection-btn:active{transform:scale(.95)}}.contact{display:grid;grid-template-columns:1fr;grid-template-rows:auto auto;grid-template-areas:"header" "form";gap:var(--space-2xl);width:100%;max-width:1000px;margin:var(--space-2xl) auto;padding:var(--space-2xl);box-sizing:border-box;position:relative;perspective:1000px;overflow-x:hidden;overflow-y:visible;height:auto;min-height:auto}.floating-elements{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1}.floating-orb{position:absolute;border-radius:50%;background:linear-gradient(135deg,var(--accent-light),var(--accent-light));backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--card-border)}.orb-1{width:200px;height:200px;top:10%;left:80%;background:linear-gradient(135deg,var(--accent-light),var(--accent-light))}.orb-2{width:150px;height:150px;bottom:20%;left:10%;background:linear-gradient(135deg,var(--accent-light),var(--success-light))}.orb-3{width:100px;height:100px;top:50%;right:20%;background:linear-gradient(135deg,var(--accent-light),var(--accent-light))}.textContainer{grid-area:header;display:flex;flex-direction:column;justify-content:center;gap:var(--space-lg);padding:var(--space-2xl);background:var(--card-bg-glass);backdrop-filter:blur(35px);-webkit-backdrop-filter:blur(35px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-2xl),0 0 50px var(--accent-light),inset 0 1px 0 var(--glass-border);position:relative;transform-style:preserve-3d;text-align:center;overflow:visible;height:auto;min-height:auto}.textContainer:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);border-radius:var(--radius-2xl) var(--radius-2xl) 0 0}.header-section{text-align:center;margin-bottom:var(--space-lg)}.textContainer h1{font-size:3.5rem;font-weight:900;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-md);text-shadow:var(--shadow-lg);line-height:1.1;position:relative;cursor:pointer;text-align:center}.subtitle{font-size:1.2rem;color:var(--text-secondary);opacity:.8;margin:0;font-weight:500}.contact-items{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-lg);margin-top:var(--space-lg)}.item{display:flex;align-items:center;gap:20px;padding:24px;background:var(--card-bg-glass);border-radius:20px;border:1px solid var(--card-border);backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);transition:all .3s cubic-bezier(.4,0,.2,1);cursor:pointer;position:relative;overflow:hidden;box-shadow:var(--shadow-sm),0 0 0 1px var(--glass-border)}.item:hover{transform:translateY(-4px);background:var(--card-bg-glass);border-color:var(--accent);box-shadow:var(--shadow-xl),0 0 0 1px var(--accent-light)}.item:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,var(--accent-light),var(--accent-light));opacity:0;transition:opacity var(--transition-normal)}.item:hover:before{opacity:1}.item-icon{font-size:2.2rem;display:flex;align-items:center;justify-content:center;width:70px;height:70px;background:var(--gradient-primary);border-radius:18px;box-shadow:var(--shadow-lg),0 0 0 1px var(--glass-border);position:relative;z-index:1;transition:all .3s ease}.item:hover .item-icon{transform:scale(1.05) rotate(5deg);box-shadow:var(--shadow-xl),0 0 0 1px var(--glass-border)}.item-content{flex:1;position:relative;z-index:1}.item h2{margin:0 0 var(--space-xs) 0;font-size:1.3rem;font-weight:700;color:var(--text-color);text-transform:uppercase;letter-spacing:.05em}.item span{color:var(--text-secondary);font-size:1.1rem;font-weight:500}.formContainer{grid-area:form;background:var(--card-bg-glass);backdrop-filter:blur(35px);-webkit-backdrop-filter:blur(35px);padding:var(--space-2xl);border-radius:24px;border:1px solid var(--card-border);box-shadow:var(--shadow-2xl),0 0 0 1px var(--glass-border),inset 0 1px 0 var(--glass-border);position:relative;transform-style:preserve-3d;max-width:700px;margin:0 auto;width:100%;overflow:visible;height:auto;min-height:auto}.formContainer:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);border-radius:24px 24px 0 0}.form-header{text-align:center;margin-bottom:var(--space-xl)}.form-header h2{font-size:2.5rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-md)}.form-header p{color:var(--text-secondary);font-size:1.1rem;margin:0;opacity:.8}.formContainer form{display:flex;flex-direction:column;gap:var(--space-xl);width:100%;position:relative}.input-group{position:relative;display:flex;align-items:center}.input-group input,.input-group textarea{width:100%;padding:18px 24px;font-size:1.1rem;border:2px solid var(--card-border);border-radius:16px;background:var(--card-bg-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--text-color);resize:vertical;transition:all .3s cubic-bezier(.4,0,.2,1);font-family:inherit;box-sizing:border-box;position:relative}.input-group input::placeholder,.input-group textarea::placeholder{color:var(--text-secondary);opacity:.6}.input-group input:focus,.input-group textarea:focus{outline:none;border-color:var(--accent);background:var(--accent-light);transform:translateY(-2px);box-shadow:var(--shadow-sm),0 0 0 1px var(--accent-light)}.input-group.input-error input,.input-group.input-error textarea{border-color:var(--danger);background:#ef44441a}.input-group.input-error input:focus,.input-group.input-error textarea:focus{border-color:var(--danger);box-shadow:var(--shadow-sm),0 0 0 3px #ef444433}.input-group.input-valid input,.input-group.input-valid textarea{border-color:var(--success);background:#10b9811a}.input-group.input-valid input:focus,.input-group.input-valid textarea:focus{border-color:var(--success);box-shadow:var(--shadow-sm),0 0 0 3px #10b98133}.field-error{position:absolute;bottom:-24px;left:24px;font-size:.85rem;color:var(--danger);font-weight:600;display:flex;align-items:center;gap:.25rem;z-index:10}.field-success{position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--success);font-size:1.2rem;font-weight:700;z-index:10}.textarea-footer{display:flex;justify-content:space-between;align-items:center;margin-top:.5rem;padding:0 .5rem}.char-count{font-size:.85rem;color:var(--text-muted);font-weight:500}.input-group.input-valid .char-count{color:var(--success)}.input-group.input-error .char-count{color:var(--danger)}.submit-btn{background:var(--gradient-primary);color:var(--text-light);border:none;border-radius:16px;padding:18px 32px;font-size:1.2rem;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);text-transform:uppercase;letter-spacing:.05em;position:relative;overflow:hidden;min-height:60px;display:flex;align-items:center;justify-content:center;gap:12px;box-shadow:var(--shadow-lg),0 0 0 1px var(--glass-border)}.submit-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl),0 0 0 1px var(--glass-border)}.submit-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left .6s ease}.submit-btn:hover:before{left:100%}.submit-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.submit-section{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);position:relative}.auto-save-indicator{position:absolute;top:-2.5rem;font-size:.85rem;color:var(--text-muted);font-weight:500;display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:12px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.loading-spinner{display:flex;align-items:center;gap:var(--space-sm)}.spinner{width:20px;height:20px;border:2px solid var(--card-border);border-top:2px solid white;border-radius:50%}.form-error-message{padding:1rem 1.5rem;border-radius:16px;font-weight:600;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);background:#ef444426;color:var(--danger);border:2px solid var(--danger);margin-top:1rem;box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:space-between;gap:1rem;position:relative}.error-icon{font-size:1.5rem;flex-shrink:0}.error-close{background:transparent;border:none;color:var(--danger);font-size:1.2rem;cursor:pointer;padding:.25rem .5rem;border-radius:6px;transition:all .2s ease;flex-shrink:0}.error-close:hover{background:#ef444433}.form-success-message{padding:2rem 1.5rem;border-radius:20px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:#10b98126;border:2px solid var(--success);margin-top:1rem;box-shadow:var(--shadow-xl);display:flex;flex-direction:column;align-items:center;gap:1rem;position:relative;text-align:center}.success-icon{font-size:3rem;filter:drop-shadow(0 0 10px var(--success))}.success-content h3{color:var(--success);font-size:1.5rem;font-weight:800;margin:0}.success-content p{color:var(--text-light);font-size:1rem;margin:.5rem 0 0;opacity:.9}.success-close{position:absolute;top:1rem;right:1rem;background:transparent;border:none;color:var(--success);font-size:1.2rem;cursor:pointer;padding:.25rem .5rem;border-radius:6px;transition:all .2s ease}.success-close:hover{background:#10b98133}.error-message{padding:16px 24px;border-radius:16px;font-weight:600;text-align:center;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);background:var(--danger-light);color:var(--danger);border:1px solid var(--danger);margin-top:16px;box-shadow:var(--shadow-lg)}.success-message{padding:16px 24px;border-radius:16px;font-weight:600;text-align:center;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);background:var(--success-light);color:var(--success);border:1px solid var(--success);margin-top:16px;box-shadow:var(--shadow-lg)}@media (max-width: 1200px){.contact{max-width:90%;gap:var(--space-xl);padding:var(--space-xl)}.textContainer h1{font-size:3rem}.form-header h2{font-size:2.2rem}.contact-items{grid-template-columns:1fr}}@media (max-width: 768px){.contact{grid-template-columns:1fr;gap:var(--space-2xl);padding:var(--space-lg);margin:var(--space-lg) auto}.textContainer,.formContainer{padding:var(--space-xl)}.textContainer h1{font-size:2.5rem;text-align:center}.form-header h2{font-size:2rem}.item{padding:var(--space-md);gap:var(--space-md)}.item-icon{width:60px;height:60px;font-size:2rem}.item h2{font-size:1.1rem}.item span{font-size:1rem}.input-group input,.input-group textarea{padding:var(--space-md) var(--space-lg);font-size:1rem}.submit-btn{padding:var(--space-md) var(--space-xl);font-size:1.1rem;min-height:55px}.floating-orb{opacity:.5}.orb-1{width:150px;height:150px}.orb-2{width:100px;height:100px}.orb-3{width:80px;height:80px}}@media (max-width: 480px){.contact{padding:var(--space-md);gap:var(--space-xl);margin:var(--space-md) auto}.textContainer,.formContainer{padding:var(--space-lg);border-radius:var(--radius-xl)}.textContainer h1{font-size:2rem;line-height:1.2}.subtitle{font-size:1rem}.form-header h2{font-size:1.8rem}.form-header p{font-size:1rem}.item{flex-direction:column;text-align:center;padding:var(--space-lg)}.item-icon{width:50px;height:50px;font-size:1.8rem}.input-group input,.input-group textarea{padding:var(--space-sm) var(--space-md);font-size:.95rem}.submit-btn{padding:var(--space-sm) var(--space-lg);font-size:1rem;min-height:50px}}@media (max-width: 320px){.contact{padding:var(--space-sm);gap:var(--space-lg)}.textContainer,.formContainer{padding:var(--space-md);border-radius:var(--radius-lg)}.textContainer h1{font-size:1.8rem}.form-header h2{font-size:1.5rem}.item h2{font-size:1rem}.item span{font-size:.9rem}.input-group input,.input-group textarea{padding:var(--space-sm);font-size:.9rem}.submit-btn{font-size:.9rem;min-height:48px}.floating-orb{display:none}.field-error{bottom:-20px;left:var(--space-sm);font-size:.75rem}.textarea-footer{flex-direction:column;align-items:flex-start;gap:.25rem}}.contact-us-page{min-height:calc(100vh - 100px);display:flex;align-items:center;justify-content:center;padding:var(--space-2xl);background:radial-gradient(ellipse at top left,var(--accent-light) 0%,transparent 50%),radial-gradient(ellipse at top right,color-mix(in srgb,var(--accent2) 12%,transparent) 0%,transparent 50%),var(--bg-dark)}.contact-us-container{max-width:900px;width:100%;text-align:center}.contact-us-subtitle{font-size:1.2rem;color:var(--text-secondary);margin-bottom:var(--space-2xl);opacity:.9;font-weight:500}.contact-methods-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-xl);margin-bottom:var(--space-2xl)}.contact-us-container h1{font-size:clamp(2.5rem,5vw,4rem);font-weight:900;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-2xl);display:flex;align-items:center;justify-content:center;gap:var(--space-md)}.contact-info-card{background:var(--card-bg-glass);backdrop-filter:blur(35px);-webkit-backdrop-filter:blur(35px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-2xl);padding:var(--space-2xl);transition:all .3s ease;cursor:pointer}.contact-info-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2xl),0 0 30px var(--accent-light);border-color:var(--accent)}.contact-info-item{display:flex;align-items:center;gap:var(--space-xl);justify-content:center;flex-wrap:wrap}.contact-email-wrapper{display:flex;align-items:center;gap:var(--space-md);justify-content:center;flex-wrap:wrap}.copy-email-btn{background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:8px;padding:.5rem .75rem;color:var(--text-light);font-size:1rem;cursor:pointer;transition:all .3s ease;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;min-width:40px;height:40px}.copy-email-btn:hover{background:var(--accent-light);border-color:var(--accent);transform:scale(1.1)}.contact-link{font-size:1.25rem;color:var(--accent);text-decoration:none;font-weight:600;transition:all .3s ease;display:inline-block;word-break:break-word}.contact-link:hover{color:var(--accent-light);transform:translateY(-2px);text-shadow:0 0 10px var(--accent-light)}.contact-text{font-size:1.25rem;color:var(--text-secondary);font-weight:500}.contact-icon{font-size:3rem;filter:drop-shadow(0 0 10px var(--accent-light))}.contact-details h2{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--space-sm)}.contact-details a{font-size:1.25rem;color:var(--accent);text-decoration:none;font-weight:600;transition:all .3s ease;display:inline-block}.contact-details a:hover{color:var(--accent-light);transform:translateY(-2px);text-shadow:0 0 10px var(--accent-light)}.contact-cta{background:var(--card-bg-glass);backdrop-filter:blur(35px);-webkit-backdrop-filter:blur(35px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-xl);padding:var(--space-2xl);position:relative;overflow:hidden}.contact-cta:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);border-radius:var(--radius-2xl) var(--radius-2xl) 0 0}.cta-icon{font-size:3rem;margin-bottom:var(--space-md);filter:drop-shadow(0 0 10px var(--accent-light))}.contact-cta h3{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--space-sm);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.contact-cta p{font-size:1.1rem;color:var(--text-secondary);margin-bottom:var(--space-lg)}.contact-form-link{text-decoration:none;display:inline-block}.contact-form-link button{background:var(--gradient-primary);color:var(--text-light);border:none;border-radius:16px;padding:18px 32px;font-size:1.2rem;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);text-transform:uppercase;letter-spacing:.05em;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:var(--space-sm)}.contact-form-link button:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl)}@media (max-width: 768px){.contact-us-page{padding:var(--space-lg)}.contact-us-subtitle{font-size:1.1rem}.contact-methods-grid{grid-template-columns:1fr;gap:var(--space-lg)}.contact-info-card,.contact-cta{padding:var(--space-xl)}.contact-info-item{flex-direction:column;gap:var(--space-lg)}.contact-email-wrapper{flex-direction:column;gap:var(--space-sm)}.contact-icon{font-size:2.5rem}.contact-details h2{font-size:1.25rem}.contact-link,.contact-text{font-size:1.1rem}.contact-cta h3{font-size:1.3rem}.contact-form-link button{padding:16px 24px;font-size:1rem}}@media (max-width: 480px){.contact-us-container h1{font-size:2rem}.contact-us-subtitle{font-size:1rem;margin-bottom:var(--space-xl)}.contact-info-card,.contact-cta{padding:var(--space-lg)}.contact-icon{font-size:2rem}.contact-details h2{font-size:1.1rem}.contact-link,.contact-text{font-size:1rem}.contact-cta h3{font-size:1.2rem}.contact-cta p{font-size:1rem}.cta-icon{font-size:2.5rem}.copy-email-btn{min-width:36px;height:36px;padding:.4rem .6rem;font-size:.9rem}}@media (prefers-color-scheme: dark){.floating-orb{background:linear-gradient(135deg,#6366f133,#8b5cf626)}.textContainer,.formContainer{box-shadow:0 25px 50px -12px #00000040,0 0 50px #6366f126,inset 0 1px #ffffff0d}}.contact,.textContainer,.formContainer{overflow:visible!important;overflow-y:visible!important;overflow-x:hidden!important;height:auto!important;max-height:none!important;min-height:auto!important}.formContainer::-webkit-scrollbar{display:none!important;width:0!important;height:0!important}.formContainer{-ms-overflow-style:none!important;scrollbar-width:none!important}.error-boundary{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:var(--space-lg);background:var(--bg-dark)}.error-boundary-content{max-width:600px;width:100%;text-align:center;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);padding:var(--space-2xl);box-shadow:var(--shadow-2xl)}.error-boundary-icon{font-size:4rem;margin-bottom:var(--space-lg);animation:errorShake .5s ease-in-out}@keyframes errorShake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.error-boundary-title{font-size:2rem;font-weight:700;color:var(--text-light);margin-bottom:var(--space-md)}.error-boundary-message{font-size:1.1rem;color:var(--text-muted);margin-bottom:var(--space-xl);line-height:1.6}.error-boundary-details{text-align:left;margin-bottom:var(--space-lg);background:var(--bg-secondary);border-radius:var(--radius-md);padding:var(--space-md);border:1px solid var(--card-border)}.error-boundary-details summary{cursor:pointer;color:var(--text-light);font-weight:600;margin-bottom:var(--space-sm)}.error-boundary-stack{color:var(--text-muted);font-size:.85rem;overflow-x:auto;white-space:pre-wrap;word-break:break-word;margin-top:var(--space-sm)}.error-boundary-actions{display:flex;gap:var(--space-md);justify-content:center;flex-wrap:wrap}.error-boundary-button{padding:var(--space-md) var(--space-xl);border-radius:var(--radius-lg);font-weight:600;font-size:1rem;cursor:pointer;transition:all var(--transition-normal);border:1px solid var(--card-border);background:var(--card-bg-glass);color:var(--text-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.error-boundary-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);background:var(--accent-light)}.error-boundary-button-primary{background:var(--gradient-primary);border-color:var(--accent)}.error-boundary-button-primary:hover{background:var(--accent-hover)}@media (max-width: 768px){.error-boundary-content{padding:var(--space-lg)}.error-boundary-title{font-size:1.5rem}.error-boundary-message{font-size:1rem}.error-boundary-actions{flex-direction:column}.error-boundary-button{width:100%}}.premium-quiz-container{min-height:100vh;height:auto!important;max-height:none!important;background:var(--bg-dark);position:relative;overflow-x:hidden;overflow-y:visible!important;padding:2rem;isolation:isolate!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}.premium-quiz-controls{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:3rem;padding:1.5rem;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:2px solid var(--card-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);position:relative;z-index:10}.premium-search-container{width:100%}.premium-search-wrapper{position:relative;display:flex;align-items:center;width:100%}.premium-search-input{width:100%;padding:1rem 3rem 1rem 1.5rem;background:var(--bg-secondary);border:2px solid var(--card-border);border-radius:var(--radius-lg);color:var(--text-color);font-size:1rem;transition:all .3s ease;box-sizing:border-box}.premium-search-clear{position:absolute;right:.75rem;top:50%;transform:translateY(-50%);background:transparent;border:none;color:var(--text-secondary);font-size:1.2rem;cursor:pointer;padding:.25rem .5rem;border-radius:var(--radius-sm);transition:all .2s ease;display:flex;align-items:center;justify-content:center;width:28px;height:28px;line-height:1}.premium-search-clear:hover{background:var(--bg-secondary);color:var(--text-color);transform:translateY(-50%) scale(1.1)}.premium-search-clear:active{transform:translateY(-50%) scale(.95)}.premium-search-input:focus{outline:none;border-color:var(--accent-light);box-shadow:0 0 0 4px 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var(--card-border);scroll-margin:0;scroll-padding:0;scroll-behavior:auto}.premium-pagination-info{color:var(--text-secondary);font-size:.9rem;font-weight:500}.premium-pagination-controls{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;justify-content:center}.premium-pagination-btn{padding:.5rem 1rem;background:var(--bg-secondary);color:var(--text-color);border:1px solid var(--card-border);border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;font-weight:500;font-size:.9rem;scroll-margin:0;scroll-padding:0}.premium-pagination-btn:hover:not(:disabled){background:var(--accent);color:var(--text-light);transform:translateY(-2px);box-shadow:var(--shadow-md)}.premium-pagination-btn:disabled{opacity:.5;cursor:not-allowed}.premium-pagination-numbers{display:flex;gap:.25rem}.premium-pagination-number{min-width:40px;height:40px;padding:.5rem;background:var(--bg-secondary);color:var(--text-color);border:1px solid var(--card-border);border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;font-weight:500;display:flex;align-items:center;justify-content:center;scroll-margin:0;scroll-padding:0}.premium-pagination-number:hover{background:var(--accent-light);color:var(--text-light);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.premium-pagination-number.active{background:var(--gradient-primary);color:var(--text-light);border-color:var(--accent);box-shadow:var(--shadow-md);transform:scale(1.1)}.premium-no-quizzes{display:flex;justify-content:center;align-items:center;min-height:50vh;padding:2rem}.premium-empty-state{text-align:center;padding:4rem 3rem;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:2px solid var(--card-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);position:relative;overflow:hidden;max-width:600px;margin:0 auto}.premium-empty-state:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(251,191,36,.1),transparent);animation:emptyShimmer 3s ease-in-out infinite}@keyframes emptyShimmer{0%{left:-100%}50%{left:100%}to{left:100%}}.premium-empty-icon{font-size:5rem;display:block;margin-bottom:1.5rem;filter:drop-shadow(0 0 20px var(--warning-light))}.premium-empty-state h3{font-size:2rem;font-weight:700;background:var(--gradient-primary);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1rem;line-height:1.3}.premium-empty-state p{color:var(--text-secondary);font-size:1.1rem;line-height:1.6;margin-bottom:1.5rem}.premium-empty-clear-filters{margin-top:.5rem}@keyframes gentleFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@media (max-width: 768px){.premium-quiz-controls{padding:1rem;gap:1rem}.premium-filter-controls{flex-direction:column}.premium-filter-select,.premium-sort-select{width:100%;min-width:unset}.premium-pagination-controls{gap:.25rem}.premium-pagination-btn{padding:.4rem .8rem;font-size:.85rem}.premium-pagination-number{min-width:36px;height:36px;font-size:.85rem}}@media (max-width: 480px){.premium-quiz-controls{padding:.75rem;gap:.75rem}.premium-search-input{padding:.875rem 1rem;font-size:.95rem}.premium-pagination-container{padding:1rem;gap:.75rem}.premium-pagination-btn{padding:.35rem .7rem;font-size:.8rem}.premium-pagination-number{min-width:32px;height:32px;font-size:.8rem;padding:.4rem}}.premium-quiz-container.main-content{height:auto!important;max-height:none!important;overflow-y:visible!important;overflow-x:hidden;position:relative!important}body:has(.premium-quiz-container),html:has(.premium-quiz-container){overflow-y:auto!important;overflow-x:hidden;height:auto!important;max-height:none!important}body.premium-quizzes-page,html.premium-quizzes-page{overflow-y:auto!important;overflow-x:hidden!important;height:auto!important;max-height:none!important}body.premium-quizzes-page .main-content,html.premium-quizzes-page .main-content{height:auto!important;max-height:none!important;overflow-y:visible!important;overflow-x:hidden!important;min-height:auto!important}@media (max-width: 768px){body.premium-quizzes-page .main-content{min-height:auto!important;height:auto!important;max-height:none!important;overflow-y:visible!important;overflow-x:hidden!important;padding:1rem!important;width:100%!important;max-width:100%!important;box-sizing:border-box!important;margin:0!important}}@media (max-width: 480px){body.premium-quizzes-page .main-content{min-height:auto!important;height:auto!important;max-height:none!important;overflow-y:visible!important;overflow-x:hidden!important;padding:.75rem!important;width:100%!important;max-width:100%!important;box-sizing:border-box!important;margin:0!important}}@media (max-width: 768px){body:has(.premium-quiz-container),html:has(.premium-quiz-container),body.premium-quizzes-page,html.premium-quizzes-page{overflow-y:auto!important;overflow-x:hidden!important;height:auto!important;max-height:none!important;position:relative!important}body.premium-quizzes-page,html.premium-quizzes-page{height:auto!important;max-height:none!important;min-height:auto!important;overflow-y:auto!important;overflow-x:hidden!important}.premium-quiz-container.main-content{height:auto!important;max-height:none!important;overflow-y:visible!important;overflow-x:hidden!important;position:relative!important}.premium-quiz-container .quiz-list{height:auto!important;max-height:none!important;overflow:visible!important}}.loading-container{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:80vh;text-align:center}.loading-spinner{width:100px;height:100px;position:relative;margin-bottom:2rem}.spinner-ring{width:100%;height:100%;border:5px solid var(--warning-light);border-top:5px solid var(--warning);border-radius:50%;background:var(--gradient-warning);filter:drop-shadow(0 0 15px var(--warning-light))}.loading-text{font-size:1.3rem;color:var(--warning);font-weight:600;letter-spacing:.8px;text-shadow:0 0 8px var(--warning-light)}.error-container{display:flex;justify-content:center;align-items:center;min-height:80vh}.error-message{background:var(--danger-light);border:2px solid var(--danger-light);color:var(--danger-light);padding:2.5rem;border-radius:1.2rem;font-size:1.2rem;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 8px 25px var(--danger-light)}.quiz-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4rem;padding:0 1rem;position:relative;isolation:isolate!important;z-index:1000!important;width:100%;box-sizing:border-box;backdrop-filter:none!important;-webkit-backdrop-filter:none!important;transform:translateZ(0)!important;will-change:auto;contain:layout style 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2rem;background:var(--card-bg-glass);backdrop-filter:blur(25px);-webkit-backdrop-filter:blur(25px);border:1px solid var(--card-border);border-radius:24px;box-shadow:0 12px 40px var(--shadow),0 0 0 1px var(--glass-border) inset;color:var(--text-muted);font-size:1.2rem;position:relative;overflow:hidden}.no-questions:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:conic-gradient(from 0deg,transparent,var(--accent-light),transparent);animation:rotate 15s linear infinite}.no-questions p{position:relative;z-index:1;font-weight:600;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@media (max-width: 1200px){.quiz-questions-container{padding:2.5rem 1.5rem}.quiz-details h2{font-size:clamp(1.8rem,3vw,2.5rem)!important;-webkit-background-clip:text!important;-webkit-text-fill-color:transparent!important;background-clip:text!important;color:transparent!important}.quiz-details h2.premium-title{filter:drop-shadow(0 0 18px var(--warning-light))!important}.question-box{padding:2rem;margin-bottom:1.5rem}}@media (max-width: 768px){.quiz-questions-container{padding:2rem 1rem;width:100%;max-width:100%}.quiz-details h2{font-size:clamp(1.6rem,4vw,2rem)!important;margin-bottom:2rem!important;-webkit-background-clip:text!important;-webkit-text-fill-color:transparent!important;background-clip:text!important;color:transparent!important}.quiz-details h2.premium-title{filter:drop-shadow(0 0 15px var(--warning-light))!important}.quiz-info{padding:1.5rem;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));width:100%;max-width:100%}.question-box{padding:1.5rem;margin-bottom:1.5rem;border-radius:20px}.question-box h3{font-size:clamp(1.1rem,2vw,1.3rem);margin-bottom:1.25rem}.question-box li{padding:.875rem 1rem;font-size:.95rem}.correct-answer{padding:1rem 1.25rem;font-size:.95rem}.delete-btn,.back-btn{width:100%;box-sizing:border-box;text-align:center;padding:1rem;font-size:1rem;min-height:48px}.back-btn{margin-bottom:2rem}.delete-btn{margin-top:1rem}}@media (max-width: 480px){.quiz-questions-container{padding:1.5rem .75rem;width:100%;max-width:100%}.quiz-details h2{font-size:clamp(1.4rem,4vw,1.8rem)!important;margin-bottom:1.5rem!important;-webkit-background-clip:text!important;-webkit-text-fill-color:transparent!important;background-clip:text!important;color:transparent!important}.quiz-details h2.premium-title{filter:drop-shadow(0 0 12px var(--warning-light))!important}.quiz-details h2:after{width:60px;height:3px}.quiz-info{padding:1.25rem;grid-template-columns:1fr;gap:.875rem;width:100%;max-width:100%}.quiz-info p{padding:1rem;font-size:.95rem}.question-box{padding:1.25rem;margin-bottom:1.25rem;border-radius:16px}.question-box h3{font-size:clamp(1rem,2vw,1.2rem);margin-bottom:1rem}.question-box li{padding:.75rem .875rem;font-size:.9rem}.correct-answer{padding:.875rem 1rem;font-size:.9rem;margin-bottom:1rem}.delete-btn,.back-btn{padding:.875rem 1rem;font-size:.95rem;min-height:46px}}@media (max-width: 320px){.quiz-questions-container{padding:1rem .5rem;width:100%;max-width:100%}.quiz-details h2{font-size:clamp(1.2rem,4vw,1.5rem)!important;margin-bottom:1.25rem!important;-webkit-background-clip:text!important;-webkit-text-fill-color:transparent!important;background-clip:text!important;color:transparent!important}.quiz-details h2.premium-title{filter:drop-shadow(0 0 10px var(--warning-light))!important}.quiz-details h2:after{width:50px;height:2px}.quiz-info{padding:1rem;gap:.75rem}.quiz-info p{padding:.875rem;font-size:.9rem}.question-box{padding:1rem;margin-bottom:1rem;border-radius:12px}.question-box h3{font-size:clamp(.95rem,2vw,1.1rem);margin-bottom:.875rem}.question-box li{padding:.625rem .75rem;font-size:.85rem}.correct-answer{padding:.75rem .875rem;font-size:.85rem;margin-bottom:.875rem}.delete-btn,.back-btn{padding:.75rem .875rem;font-size:.9rem;min-height:44px}}.analytics-dashboard{padding:var(--space-md);background:var(--bg-secondary);color:var(--text-color);min-height:100vh;overflow-y:auto;display:flex;flex-direction:column;align-items:center}.chart-section,.table-section{width:100%;max-width:600px;margin:var(--space-md) 0;padding:var(--space-md);background:var(--card-bg);border-radius:10px;box-shadow:0 4px 12px var(--shadow)}.chart-wrapper{width:100%;height:300px}.table-container{max-height:300px;overflow-y:auto}.table-container table{width:100%;border-collapse:collapse}.table-container th{background:var(--bg-secondary);font-weight:500}.table-container td,.table-container th{padding:var(--space-xs) var(--space-sm);border-bottom:1px solid var(--border-color)}body:has(.leaderboard-container),html:has(.leaderboard-container){overflow-x:hidden!important;max-width:100vw!important;width:100%!important}.main-content:has(.leaderboard-container){overflow-x:hidden!important;max-width:100%!important;width:100%!important}.leaderboard-container{max-width:1200px;margin:var(--space-xl) auto;padding:3rem;background:var(--card-bg-glass);backdrop-filter:blur(40px);-webkit-backdrop-filter:blur(40px);color:var(--text-color);border-radius:var(--radius-2xl);border:2px solid var(--card-border);box-shadow:var(--shadow-2xl),0 0 80px var(--accent-light),inset 0 2px 0 var(--glass-border);text-align:center;position:relative;overflow:visible!important;overflow-x:hidden!important;overflow-y:visible!important;height:auto!important;max-height:none!important;min-height:auto!important;animation:containerSlideIn 1s ease-out;box-sizing:border-box;contain:layout style paint;max-width:100%;width:100%;min-width:0}.leaderboard-table-container{margin-bottom:2rem;overflow:visible!important;overflow-y:visible!important;overflow-x:hidden!important;height:auto!important;max-height:none!important}@keyframes containerSlideIn{0%{opacity:0;transform:translateY(50px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.leaderboard-container:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-warning);border-radius:2.5rem 2.5rem 0 0;animation:championGlow 3s ease-in-out infinite;overflow:hidden;clip-path:inset(0);max-width:100%}@keyframes championGlow{0%,to{background:var(--gradient-warning);box-shadow:0 0 30px var(--warning-light)}33%{background:var(--leaderboard-gradient-silver);box-shadow:0 0 30px var(--text-muted)}66%{background:var(--leaderboard-gradient-bronze);box-shadow:0 0 30px var(--warning-light)}}.leaderboard-container:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 50% 0%,var(--warning-light) 0%,transparent 50%);border-radius:inherit;pointer-events:none;overflow:hidden;clip-path:inset(0)}.leaderboard-container h2:after{display:none}@keyframes titleFloat{0%{opacity:0;transform:translateY(-30px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}.leaderboard-container h2:after{content:"";position:absolute;bottom:-15px;left:50%;transform:translate(-50%);width:120px;height:4px;background:var(--gradient-warning);border-radius:2px;animation:underlineGlow 2s ease-in-out infinite}@keyframes underlineGlow{0%,to{width:120px;background:var(--gradient-warning);box-shadow:0 0 20px var(--warning-light)}50%{width:150px;background:var(--leaderboard-gradient-2);box-shadow:0 0 25px var(--accent-light)}}@keyframes tableSlideIn{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.leaderboard-table:before{display:none!important;content:none}@keyframes tableShimmer{0%{transform:translate(-100%);opacity:0}50%{transform:translate(0);opacity:.3}to{transform:translate(100%);opacity:0}}.leaderboard-table table{width:100%;border-collapse:separate;border-spacing:0;position:relative;z-index:5;table-layout:auto;box-sizing:border-box;max-width:100%}.leaderboard-table thead{position:relative;z-index:10}.leaderboard-table thead th{position:sticky!important;position:-webkit-sticky!important;top:0!important;z-index:100!important}.leaderboard-table th{background:var(--leaderboard-gradient-1);color:var(--text-light);font-weight:800;text-transform:uppercase;letter-spacing:.1em;font-size:1rem;padding:1.2rem .8rem;border:none;position:sticky!important;position:-webkit-sticky!important;top:0!important;z-index:100!important;text-shadow:var(--shadow-md);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);text-align:center;word-wrap:break-word;min-width:fit-content}.leaderboard-table th:first-child{border-top-left-radius:1.5rem}.leaderboard-table th:last-child{border-top-right-radius:1.5rem}@media (max-width: 768px){.leaderboard-table th:first-child{border-top-left-radius:var(--radius-sm)!important}.leaderboard-table th:last-child{border-top-right-radius:var(--radius-sm)!important}}@media (max-width: 480px){.leaderboard-table th:first-child{border-top-left-radius:var(--radius-xs)!important}.leaderboard-table th:last-child{border-top-right-radius:var(--radius-xs)!important}}@media (max-width: 320px){.leaderboard-table th:first-child{border-top-left-radius:4px!important}.leaderboard-table th:last-child{border-top-right-radius:4px!important}}.leaderboard-table td,.leaderboard-table th{padding:1rem .8rem;border-bottom:1px solid var(--card-border);vertical-align:middle;box-sizing:border-box}.leaderboard-table th{position:sticky!important;position:-webkit-sticky!important;top:0!important;z-index:100!important}.leaderboard-table td{background:var(--leaderboard-glass);transition:all .3s cubic-bezier(.25,.46,.45,.94);font-weight:600;position:relative;color:var(--text-color);text-align:center;word-wrap:break-word;overflow-wrap:break-word}.leaderboard-table tr:hover td{background:var(--accent-light);transform:translateY(-1px);box-shadow:var(--shadow-lg);transition:all .3s cubic-bezier(.25,.46,.45,.94)}.leaderboard-table tbody tr:nth-child(1) td:first-child{background:var(--gradient-warning);color:var(--text-color);font-weight:900;text-shadow:var(--shadow-sm);text-align:center;min-width:80px}.leaderboard-table tbody tr:nth-child(2) td:first-child{background:var(--leaderboard-gradient-silver);color:var(--text-color);font-weight:900;text-shadow:var(--shadow-sm);text-align:center;min-width:80px}.leaderboard-table tbody tr:nth-child(3) td:first-child{background:var(--leaderboard-gradient-bronze);color:var(--text-color);font-weight:900;text-shadow:var(--shadow-sm);text-align:center;min-width:80px}.rank-badge{display:inline-flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700}@keyframes medalSpin{0%,to{transform:translateY(-50%) rotate(0)}50%{transform:translateY(-50%) rotate(180deg)}}.leaderboard-table tbody tr td{color:var(--text-color)!important;opacity:1!important;visibility:visible!important}.leaderboard-table tbody tr:nth-child(1) td:not(:first-child),.leaderboard-table tbody tr:nth-child(2) td:not(:first-child),.leaderboard-table tbody tr:nth-child(3) td:not(:first-child){color:var(--text-color)!important}.leaderboard-buttons button{background:linear-gradient(135deg,var(--accent) 0%,var(--accent2) 100%);color:var(--text-light);border:none;border-radius:var(--radius-lg);padding:var(--space-md) var(--space-xl);cursor:pointer;margin:0 var(--space-sm);margin-top:var(--space-lg);transition:all var(--transition-normal);font-weight:600;text-transform:uppercase;letter-spacing:.05em;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--card-border);box-shadow:var(--shadow-lg);min-height:45px}.leaderboard-buttons button:hover{background:var(--accent2)}.leaderboard-controls{margin:var(--space-xl) 0;display:flex;justify-content:center;align-items:center;gap:var(--space-md);flex-wrap:wrap;padding:var(--space-md);background:var(--card-bg-glass);border-radius:20px;border:1px solid var(--card-border)}.lb-page-header{display:flex;flex-direction:row;justify-content:space-between;align-items:center;margin-bottom:2rem;gap:1.5rem;width:100%;flex-wrap:wrap}.lb-main-title{margin:0;padding:0;display:inline-flex;align-items:center;gap:.75rem;font-size:clamp(1.75rem,4vw,2.5rem);font-weight:800;line-height:1.2;background:var(--gradient-warning);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;white-space:nowrap;flex:1;min-width:0}.lb-trophy{display:inline-block;font-size:clamp(1.5rem,3vw,2rem);line-height:1;flex-shrink:0;animation:lbTrophyBounce 2s ease-in-out infinite}.lb-title-text{display:inline-block;white-space:normal;word-wrap:break-word;overflow-wrap:break-word;line-height:1.3}.lb-export-button{background:var(--gradient-warning);border:1px solid var(--warning);border-radius:12px;padding:.75rem 1.5rem;color:var(--text-light);font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-md);white-space:nowrap;flex-shrink:0;display:flex;align-items:center;gap:.5rem}.lb-export-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);background:var(--warning)}.leaderboard-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-bottom:2rem;width:100%;max-width:100%;box-sizing:border-box;padding:0;overflow:visible;contain:layout style paint}.stat-card{background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:20px;padding:.875rem .5rem;text-align:center;position:relative;overflow:visible;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);transition:all .3s ease;width:100%;max-width:100%;box-sizing:border-box;min-width:0;contain:layout style paint;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.1rem}.stat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--warning)}.stat-icon{font-size:1.5rem;margin-bottom:0;display:block;flex-shrink:0;line-height:1}.stat-card h3{font-size:.65rem;color:var(--text-muted);font-weight:600;margin:0;text-transform:uppercase;letter-spacing:.2px;word-wrap:break-word;overflow-wrap:break-word;white-space:normal;max-width:100%;line-height:1.1;padding:0 .25rem;-webkit-hyphens:auto;hyphens:auto}.stat-number{font-size:1.25rem;font-weight:900;background:var(--gradient-warning);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0;line-height:1;word-wrap:break-word;overflow-wrap:break-word;white-space:normal;overflow:visible;max-width:100%;padding:0 .25rem}.total-users{border-color:var(--accent)}.unique-users{border-color:var(--warning)}.unique-quizzes{border-color:var(--info)}.average-score{border-color:var(--accent2)}.leaderboard-controls{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:2rem}.leaderboard-period-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.leaderboard-period-buttons button{background:var(--card-bg-glass);border:2px solid var(--card-border);border-radius:12px;padding:.875rem 1.5rem;color:var(--text-light);font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s ease;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);min-width:120px}.leaderboard-period-buttons button:hover{background:var(--warning-light);border-color:var(--warning);transform:translateY(-2px);box-shadow:var(--shadow-md)}.leaderboard-period-buttons button.active{background:var(--gradient-warning);border-color:var(--warning);color:var(--text-light);box-shadow:var(--shadow-md)}.leaderboard-filters{display:flex;gap:1rem;flex-wrap:wrap}.leaderboard-search-wrapper{position:relative;flex:1;min-width:200px}.leaderboard-search-input{width:100%;padding:.875rem 3rem .875rem 1.25rem;background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:12px;color:var(--text-light);font-size:1rem;transition:all .3s ease;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.leaderboard-search-input:focus{outline:none;border-color:var(--warning);box-shadow:0 0 0 3px #fbbf2433}.leaderboard-search-input::placeholder{color:var(--text-muted)}.leaderboard-search-clear{position:absolute;right:.75rem;top:50%;transform:translateY(-50%);background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:1.2rem;padding:.25rem .5rem;border-radius:6px;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.leaderboard-search-clear:hover{background:var(--warning-light);color:var(--text-light)}.leaderboard-results-info{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem;padding:.75rem 1rem;background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:12px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);flex-wrap:wrap;gap:.75rem}.results-highlight{color:var(--text-light);font-weight:600;font-size:.95rem}.results-clear-filters{background:var(--warning-light);border:1px solid var(--warning);border-radius:8px;padding:.5rem 1rem;color:var(--text-light);font-size:.875rem;font-weight:600;cursor:pointer;transition:all .3s ease}.results-clear-filters:hover{background:var(--warning);transform:translateY(-2px);box-shadow:var(--shadow-md)}.leaderboard-empty-state{text-align:center;padding:4rem 2rem;background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:24px;backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);margin-bottom:2rem}.leaderboard-empty-state .empty-icon{font-size:4rem;display:block;margin-bottom:1rem;filter:drop-shadow(0 0 20px var(--warning-light))}.leaderboard-empty-state h3{color:var(--text-light);font-size:1.5rem;margin-bottom:.5rem}.leaderboard-empty-state p{color:var(--text-muted);font-size:1.1rem;margin-bottom:1.5rem}.empty-clear-filters{background:var(--gradient-warning);border:1px solid var(--warning);border-radius:12px;padding:.75rem 1.5rem;color:var(--text-light);font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-md)}.empty-clear-filters:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);background:var(--warning)}.leaderboard-table-container{margin-bottom:2rem;overflow:visible!important;overflow-y:visible!important;overflow-x:hidden!important;height:auto!important;max-height:none!important;width:100%;max-width:100%;box-sizing:border-box;contain:layout style paint;position:relative}.leaderboard-table{background:var(--card-bg-glass);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);border:1px solid var(--card-border);border-radius:24px;overflow-x:auto!important;overflow-y:visible!important;max-height:none!important;height:auto!important;position:relative;width:100%;max-width:100%;box-sizing:border-box;contain:layout style paint;overflow-anchor:none;min-width:0;animation:none!important;box-shadow:var(--shadow-xl),0 0 60px var(--warning-light),inset 0 1px 0 var(--glass-border)}.leaderboard-table table{width:100%;border-collapse:collapse}.leaderboard-table th{padding:1.2rem 1.5rem;text-align:left;font-weight:700;font-size:1rem;color:var(--text-light);text-transform:uppercase;letter-spacing:.8px;border-bottom:2px solid rgba(251,191,36,.3);background:linear-gradient(135deg,var(--warning-light),var(--warning-light));-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:-webkit-sticky!important;position:sticky!important;top:0!important;z-index:100!important;will-change:transform;isolation:isolate}.leaderboard-table th:nth-child(1),.leaderboard-table th:nth-child(5),.leaderboard-table th:nth-child(6){text-align:center}.leaderboard-table td{padding:1.2rem 1.5rem;color:var(--text-color);font-size:.95rem;font-weight:500;border-bottom:1px solid rgba(255,255,255,.05)}.rank-cell{text-align:center;font-weight:700;font-size:1.1rem}.rank-badge{display:inline-block;padding:.5rem .75rem;border-radius:8px;background:var(--warning-light);border:1px solid var(--warning)}.username-cell{font-weight:600}.quiz-name-cell{color:var(--text-muted);word-wrap:break-word;overflow-wrap:break-word;max-width:200px}.score-cell{font-weight:600;color:var(--warning)}.total-cell{text-align:center}.percentage-cell{text-align:center;font-weight:600;color:var(--accent)}.rank-1{background:linear-gradient(135deg,#ffd70033,#ffc1071a)!important;border-left:4px solid #FFD700}.rank-2{background:linear-gradient(135deg,#c0c0c033,#a9a9a91a)!important;border-left:4px solid #C0C0C0}.rank-3{background:linear-gradient(135deg,#cd7f3233,#b873331a)!important;border-left:4px solid #CD7F32}.leaderboard-pagination{display:flex;justify-content:center;align-items:center;gap:.5rem;margin-top:2rem;flex-wrap:wrap}.pagination-btn{background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:12px;padding:.75rem 1.25rem;color:var(--text-light);font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s ease;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);min-width:100px}.pagination-btn:hover:not(:disabled){background:var(--warning-light);border-color:var(--warning);transform:translateY(-2px);box-shadow:var(--shadow-md)}.pagination-btn:disabled{opacity:.5;cursor:not-allowed}.pagination-numbers{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;justify-content:center}.pagination-number{background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:10px;padding:.75rem 1rem;color:var(--text-light);font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s ease;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);min-width:44px;display:flex;align-items:center;justify-content:center}.pagination-number:hover{background:var(--warning-light);border-color:var(--warning);transform:translateY(-2px);box-shadow:var(--shadow-md)}.pagination-number.active{background:var(--gradient-warning);border-color:var(--warning);color:var(--text-light);box-shadow:var(--shadow-md)}.pagination-ellipsis{color:var(--text-muted);padding:0 .5rem;font-weight:600}.pagination-info{text-align:center;color:var(--text-muted);font-size:.875rem;margin-top:1rem;padding:.75rem;background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:12px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.xp-leaderboard-container{background:linear-gradient(135deg,var(--success-light) 0%,var(--accent-light) 50%,rgba(236,72,153,.1) 100%)}.xp-leaderboard-container h2{background:linear-gradient(135deg,var(--success) 0%,var(--accent) 50%,var(--accent2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.xp-leaderboard-container:before{background:linear-gradient(135deg,var(--success),var(--accent),var(--accent2))}.rank-1{background:linear-gradient(135deg,#ffd70033,#ffc1071a)!important;border-left:4px solid var(--warning)!important;color:var(--warning)!important;font-weight:700!important}.rank-2{background:linear-gradient(135deg,#c0c0c033,#a9a9a91a)!important;border-left:4px solid var(--text-muted)!important;color:var(--text-muted)!important;font-weight:600!important}.rank-3{background:linear-gradient(135deg,#cd7f3233,#b873331a)!important;border-left:4px solid var(--warning)!important;color:var(--warning)!important;font-weight:600!important}.rank-4-to-10{background:linear-gradient(135deg,var(--accent-light),rgba(139,92,246,.05))!important;border-left:3px solid var(--accent)!important;font-weight:500!important}.rank-medal{font-size:1.2em;margin-right:8px;display:inline-block;animation:pulse 2s infinite}.rank-position{font-weight:700;font-size:1.1em;text-shadow:0 1px 2px rgba(0,0,0,.1)}.xp-value{font-weight:600;color:var(--success);text-shadow:0 1px 2px var(--success-light)}.period-controls{display:flex;gap:var(--space-sm);justify-content:center;margin:var(--space-lg) 0;flex-wrap:wrap}.period-btn{padding:var(--space-sm) var(--space-lg);border:2px solid var(--accent);background:transparent;color:var(--accent);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-normal);font-weight:600;text-transform:uppercase;letter-spacing:.05em;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);min-height:45px}.period-btn:hover{background:var(--accent);color:var(--text-light);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.period-btn.active{background:linear-gradient(135deg,var(--accent) 0%,var(--accent2) 100%);color:var(--text-light);border-color:var(--accent2);box-shadow:var(--shadow-xl)}.loading-container,.error-container{min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--card-bg-glass);border-radius:var(--radius-xl);border:1px solid var(--card-border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);margin:var(--space-xl) 0}.loading-spinner{width:50px;height:50px;border:4px solid var(--accent-light);border-top:4px solid var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:var(--space-md)}.loading-text,.error-text{color:var(--text-color);font-size:1.1rem;font-weight:500;text-align:center}.error-text{color:var(--danger);margin-top:var(--space-md)}.quiz-section{margin-bottom:var(--space-xl);background:var(--leaderboard-glass);border-radius:var(--radius-xl);border:1px solid 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td{padding:var(--space-sm) var(--space-md);font-size:.95rem}.leaderboard-buttons button{padding:var(--space-sm) var(--space-lg);margin:0 var(--space-xs);font-size:.9rem}}@media (max-width: 768px){.leaderboard-container{margin:var(--space-md) auto;padding:var(--space-lg) var(--space-md);border-radius:var(--radius-xl);animation:none!important;overflow:visible!important;overflow-x:hidden!important;overflow-y:visible!important;height:auto!important;max-height:none!important;min-height:auto!important}.leaderboard-header{flex-direction:row;align-items:center;gap:1rem;flex-wrap:wrap}.lb-page-header{flex-direction:row;align-items:center;gap:1rem}.lb-main-title{font-size:clamp(1.4rem,3vw,1.8rem)}.leaderboard-stats{grid-template-columns:repeat(2,1fr);gap:1rem;width:100%;max-width:100%;padding:0;overflow:hidden}.stat-card{padding:.75rem .5rem;width:100%;max-width:100%;min-width:0;box-sizing:border-box;gap:.1rem}.stat-icon{font-size:1.25rem;margin-bottom:0}.stat-card h3{font-size:.6rem;margin:0;letter-spacing:.15px;line-height:1.1;padding:0 .2rem}.stat-number{font-size:1.1rem;margin:0;padding:0 .2rem}.leaderboard-controls{flex-direction:column;gap:1rem}.leaderboard-period-buttons{width:100%}.leaderboard-period-buttons button{flex:1;min-width:0}.leaderboard-filters{flex-direction:column;width:100%}.leaderboard-filters>*{width:100%}.leaderboard-results-info{flex-direction:column;align-items:flex-start}.leaderboard-pagination{gap:.5rem}.pagination-numbers{gap:.25rem}.pagination-number{min-width:40px;padding:.625rem .75rem;font-size:.875rem}.pagination-btn{min-width:80px;padding:.625rem 1rem;font-size:.875rem}.lb-page-header{flex-direction:row;align-items:center;gap:.75rem;flex-wrap:wrap}.lb-main-title{font-size:clamp(1.3rem,3vw,1.6rem);white-space:normal}.lb-trophy{font-size:clamp(1.2rem,2.5vw,1.5rem);animation:none!important}.lb-title-text{word-break:break-word;overflow-wrap:break-word}.lb-export-button{flex-shrink:0;white-space:nowrap;padding:.625rem 1rem;font-size:.875rem}.leaderboard-table{margin-top:var(--space-lg);border-radius:var(--radius-lg);overflow-x:auto!important;animation:none!important;overflow-y:visible!important;max-height:none!important;height:auto!important;max-width:100%!important;width:100%!important;box-sizing:border-box!important;contain:layout style paint!important;border-radius:var(--radius-sm)!important}.leaderboard-table:before{animation:none!important;display:none!important;overflow:hidden!important}.leaderboard-table th{position:sticky!important;position:-webkit-sticky!important;top:0!important;z-index:100!important}.leaderboard-table table{overflow:visible!important;transform:none!important}.quiz-section{border-radius:var(--radius-lg)!important;padding:var(--space-md)!important;margin-bottom:var(--space-lg)!important;background:var(--leaderboard-glass)!important;border:1px solid var(--leaderboard-border)!important;-webkit-backdrop-filter:blur(20px)!important;backdrop-filter:blur(20px)!important;box-shadow:var(--shadow-lg)!important}.quiz-section h3{text-align:center!important;justify-content:center!important;font-size:1.3rem;margin-bottom:var(--space-md)}.leaderboard-table th,.leaderboard-table td{padding:var(--space-sm) var(--space-xs);font-size:.9rem;word-wrap:break-word;overflow-wrap:break-word}.leaderboard-table th{font-size:.8rem;padding:var(--space-sm) var(--space-xs);white-space:nowrap}.quiz-name-cell{max-width:150px;word-break:break-word}.leaderboard-table tbody tr:nth-child(1) td:first-child,.leaderboard-table tbody tr:nth-child(2) td:first-child,.leaderboard-table tbody tr:nth-child(3) td:first-child{padding:var(--space-sm) var(--space-xs);min-width:60px}.rank-badge{font-size:1rem}.leaderboard-buttons{display:flex;flex-direction:column;gap:var(--space-sm);align-items:center}.leaderboard-buttons button{width:90%;max-width:280px;margin:0;padding:var(--space-md);font-size:.95rem;min-height:48px}.leaderboard-controls{margin-top:var(--space-lg);flex-direction:column;gap:var(--space-md)}.leaderboard-controls select{width:90%;max-width:200px;padding:var(--space-sm);font-size:.9rem;min-height:40px}}@media (max-width: 480px){.leaderboard-container{margin:var(--space-sm) auto;padding:var(--space-md) var(--space-sm);border-radius:var(--radius-lg);animation:none!important;overflow:visible!important;overflow-x:hidden!important;overflow-y:visible!important;height:auto!important;max-height:none!important;min-height:auto!important}.leaderboard-stats{grid-template-columns:repeat(2,1fr);gap:.75rem;width:100%;max-width:100%;padding:0;overflow:hidden}.stat-card{padding:.7rem .4rem;width:100%;max-width:100%;min-width:0;box-sizing:border-box;gap:.02rem}.stat-icon{font-size:1.1rem;margin-bottom:0}.stat-card h3{font-size:.55rem;margin:0;letter-spacing:.1px;line-height:1.1;padding:0 .15rem}.stat-number{font-size:.95rem;margin:0;padding:0 .15rem}.leaderboard-period-buttons{flex-direction:column}.leaderboard-period-buttons button{width:100%}.leaderboard-filters{flex-direction:column}.leaderboard-filters>*{width:100%;min-width:unset}.pagination-btn{min-width:70px;padding:.5rem .875rem;font-size:.8rem}.pagination-number{min-width:36px;padding:.5rem .625rem;font-size:.8rem}.leaderboard-header{flex-direction:row;align-items:center;gap:.75rem;flex-wrap:wrap}.leaderboard-header h2,.leaderboard-title{font-size:1.5rem;margin-bottom:0;animation:none!important;text-align:left!important;justify-content:flex-start!important;align-items:center!important;display:flex!important;flex-direction:row!important;gap:.5rem!important;flex-wrap:wrap!important;flex:1;min-width:0}.export-btn{flex-shrink:0;white-space:nowrap;padding:.625rem 1rem;font-size:.875rem}.trophy-icon{font-size:1.75rem!important;animation:none!important;flex-shrink:0}.title-text{flex:1;min-width:0;word-break:break-word;font-size:1.5rem}.leaderboard-container h2:after{width:40px;animation:none!important}.leaderboard-table{margin-top:var(--space-md);border-radius:var(--radius-md);animation:none!important;overflow-y:visible!important;overflow-x:auto!important;max-height:none!important;height:auto!important;max-width:100%!important;width:100%!important;box-sizing:border-box!important;contain:layout style paint!important;border-radius:var(--radius-xs)!important}.leaderboard-table:before{animation:none!important;display:none!important;overflow:hidden!important}.leaderboard-table th{position:sticky!important;position:-webkit-sticky!important;top:0!important;z-index:100!important}.leaderboard-table table{overflow:visible!important;transform:none!important}.quiz-section{border-radius:var(--radius-md)!important;padding:var(--space-sm)!important;margin-bottom:var(--space-md)!important;background:var(--leaderboard-glass)!important;border:1px solid var(--leaderboard-border)!important;-webkit-backdrop-filter:blur(20px)!important;backdrop-filter:blur(20px)!important;box-shadow:var(--shadow-lg)!important}.quiz-section h3{text-align:center!important;justify-content:center!important;font-size:1.2rem;margin-bottom:var(--space-sm)}.leaderboard-table tbody tr:nth-child(1) td:first-child:before,.leaderboard-table tbody tr:nth-child(2) td:first-child:before,.leaderboard-table tbody tr:nth-child(3) td:first-child:before{animation:none!important}.leaderboard-table th,.leaderboard-table td{padding:var(--space-xs) var(--space-sm);font-size:.85rem;word-wrap:break-word;overflow-wrap:break-word}.leaderboard-table th{font-size:.75rem;padding:var(--space-xs) var(--space-sm);white-space:nowrap}.quiz-name-cell{max-width:120px;word-break:break-word}.rank-badge{font-size:.9rem}.leaderboard-buttons button{width:95%;padding:var(--space-sm) var(--space-md);font-size:.9rem;min-height:46px}.leaderboard-controls select{width:95%;padding:var(--space-sm);font-size:.85rem;min-height:44px}}@media (max-width: 320px){.leaderboard-container{margin:var(--space-xs) auto;padding:var(--space-sm) var(--space-xs);animation:none!important;overflow:visible!important;overflow-x:hidden!important;overflow-y:visible!important;height:auto!important;max-height:none!important;min-height:auto!important}.lb-page-header{flex-direction:row;align-items:center;gap:.4rem;flex-wrap:wrap}.lb-main-title{font-size:clamp(1rem,2vw,1.2rem);white-space:normal}.lb-trophy{font-size:clamp(.9rem,1.8vw,1rem);animation:none!important}.lb-title-text{word-break:break-word;overflow-wrap:break-word;font-size:inherit}.lb-export-button{flex-shrink:0;white-space:nowrap;padding:.5rem .875rem;font-size:.8rem}.leaderboard-table{animation:none!important;overflow-y:visible!important;overflow-x:auto!important;max-height:none!important;height:auto!important;max-width:100%!important;width:100%!important;box-sizing:border-box!important;contain:layout style paint!important}.leaderboard-table:before{animation:none!important;display:none!important;overflow:hidden!important}.leaderboard-table th{position:sticky!important;position:-webkit-sticky!important;top:0!important;z-index:100!important}.leaderboard-table table{overflow:visible!important;transform:none!important}.quiz-section{border-radius:var(--radius-sm)!important;padding:var(--space-xs)!important;margin-bottom:var(--space-sm)!important;background:var(--leaderboard-glass)!important;border:1px solid var(--leaderboard-border)!important;-webkit-backdrop-filter:blur(20px)!important;backdrop-filter:blur(20px)!important;box-shadow:var(--shadow-lg)!important}.quiz-section h3{text-align:center!important;justify-content:center!important;font-size:1.1rem;margin-bottom:var(--space-xs)}.leaderboard-table th,.leaderboard-table td{padding:var(--space-xs);font-size:.8rem;word-wrap:break-word;overflow-wrap:break-word}.leaderboard-table th{font-size:.7rem;white-space:nowrap}.quiz-name-cell{max-width:100px;word-break:break-word}.rank-badge{font-size:.85rem}.leaderboard-buttons button{width:100%;font-size:.85rem;min-height:44px}.leaderboard-controls select{width:100%;font-size:.8rem;min-height:42px}}.study-streak-container{background:var(--card-bg-glass);border:2px solid var(--card-border);border-radius:var(--radius-2xl);padding:var(--space-xl);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-lg)}.streak-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-xl)}.streak-title{font-size:1.5rem;font-weight:700;color:var(--text-light);display:flex;align-items:center;gap:var(--space-sm);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0}.streak-icon{font-size:1.8rem;-webkit-text-fill-color:initial;background:none}.edit-goals-btn{background:var(--card-bg-glass);border:2px solid var(--card-border);border-radius:var(--radius-lg);padding:var(--space-sm);color:var(--text-color);cursor:pointer;transition:all var(--transition-fast);font-size:1.2rem;display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem}.edit-goals-btn:hover{background:var(--accent-light);border-color:var(--accent);transform:rotate(90deg)}.streak-display{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-lg);margin-bottom:var(--space-xl)}.streak-card{background:var(--card-bg);border:2px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-xl);text-align:center;position:relative;overflow:hidden}.streak-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary)}.streak-card.longest-streak:before{background:linear-gradient(135deg,var(--warning) 0%,var(--info) 100%)}.streak-number{font-size:3rem;font-weight:800;color:var(--text-light);line-height:1;margin-bottom:var(--space-sm);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.streak-card.longest-streak .streak-number{background:linear-gradient(135deg,var(--warning) 0%,var(--info) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.streak-label{font-size:1rem;font-weight:600;color:var(--text-color);margin-bottom:var(--space-xs)}.streak-subtitle{font-size:.85rem;color:var(--text-muted);margin-top:var(--space-xs)}.goals-section{margin-bottom:var(--space-xl)}.goals-title{font-size:1.2rem;font-weight:700;color:var(--text-light);margin-bottom:var(--space-lg)}.goals-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-lg)}.goal-card{background:var(--card-bg-glass);border:2px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-lg);transition:all var(--transition-normal)}.goal-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent)}.goal-card.success{border-color:var(--success);background:var(--success-light)}.goal-card.success:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--success);border-radius:var(--radius-xl) var(--radius-xl) 0 0}.goal-header{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-md)}.goal-icon{font-size:1.5rem}.goal-label{font-size:.95rem;font-weight:600;color:var(--text-color)}.goal-progress{margin-bottom:var(--space-sm)}.progress-bar-container{width:100%;height:8px;background:var(--bg-secondary);border-radius:var(--radius-full);overflow:hidden;margin-bottom:var(--space-sm)}.progress-bar-fill{height:100%;background:var(--gradient-primary);border-radius:var(--radius-full);transition:width var(--transition-slow)}.goal-card.success .progress-bar-fill{background:var(--gradient-success)}.goal-card.warning .progress-bar-fill{background:linear-gradient(135deg,var(--warning) 0%,var(--warning-light) 100%)}.goal-card.info .progress-bar-fill{background:linear-gradient(135deg,var(--info) 0%,var(--info-light) 100%)}.goal-stats{display:flex;align-items:center;justify-content:space-between;font-size:.9rem;color:var(--text-muted)}.goal-current{font-weight:700;color:var(--text-color)}.goal-separator{margin:0 var(--space-xs);color:var(--text-muted)}.goal-target{color:var(--text-muted)}.goal-percentage{font-size:.85rem;font-weight:600;color:var(--accent);text-align:right}.goal-card.success .goal-percentage{color:var(--success)}.calendar-section{margin-top:var(--space-xl)}.calendar-title{font-size:1.2rem;font-weight:700;color:var(--text-light);margin-bottom:var(--space-lg)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:var(--space-xs);margin-bottom:var(--space-md)}.calendar-day{aspect-ratio:1;background:var(--bg-secondary);border:2px solid var(--card-border);border-radius:var(--radius-md);display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;cursor:pointer;transition:all var(--transition-fast)}.calendar-day:hover{transform:scale(1.1);z-index:10;box-shadow:var(--shadow-md)}.calendar-day.active{background:var(--accent-light);border-color:var(--accent)}.calendar-day.today{border-color:var(--info);border-width:3px;box-shadow:0 0 0 2px var(--info-light)}.calendar-day.today.active{border-color:var(--success);box-shadow:0 0 0 2px var(--success-light)}.day-number{font-size:.85rem;font-weight:600;color:var(--text-color)}.calendar-day.active .day-number{color:var(--text-light);font-weight:700}.activity-indicator{position:absolute;bottom:2px;width:100%;display:flex;justify-content:center}.activity-dot{width:4px;height:4px;background:var(--accent);border-radius:50%}.calendar-day.today.active .activity-dot{background:var(--success)}.calendar-legend{display:flex;gap:var(--space-lg);justify-content:center;flex-wrap:wrap}.legend-item{display:flex;align-items:center;gap:var(--space-xs);font-size:.85rem;color:var(--text-muted)}.legend-dot{width:12px;height:12px;border-radius:50%;border:2px solid var(--card-border)}.legend-dot.active{background:var(--accent-light);border-color:var(--accent)}.legend-dot.today{border-color:var(--info);border-width:3px}.goals-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000bf;backdrop-filter:blur(12px) saturate(180%);-webkit-backdrop-filter:blur(12px) saturate(180%);display:flex;align-items:center;justify-content:center;z-index:10000;padding:var(--space-lg);animation:fadeIn .2s ease-out}.goals-modal{background:var(--card-bg-glass);border:1px solid var(--card-border);border-radius:24px;padding:0;max-width:550px;width:100%;max-height:90vh;overflow:hidden;box-shadow:0 20px 60px #00000080,0 0 0 1px #ffffff0d;position:relative;display:flex;flex-direction:column;margin:0 auto;text-align:center}.goals-modal *{box-sizing:border-box}.goals-modal:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);z-index:1}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-xl) var(--space-xl) var(--space-lg);background:linear-gradient(135deg,var(--accent-light) 0%,var(--accent-light) 100%);border-bottom:1px solid var(--card-border);position:relative;gap:var(--space-md)}.modal-header:after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.3}.modal-header h3{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin:0;display:flex;align-items:center;justify-content:center;gap:var(--space-sm);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;flex:1;text-align:center}.modal-header h3:before{content:"🎯";font-size:1.5rem;-webkit-text-fill-color:initial;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.close-btn{background:#ffffff1a;border:1px solid var(--card-border);color:var(--text-secondary);font-size:1.25rem;cursor:pointer;padding:var(--space-sm);width:36px;height:36px;line-height:1;transition:all .2s ease;border-radius:10px;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.close-btn:hover{background:var(--danger-light);color:var(--danger);border-color:var(--danger);transform:rotate(90deg) scale(1.1);box-shadow:0 4px 12px #ef44444d}.goals-modal .modal-content{display:flex;flex-direction:column;gap:var(--space-xl);padding:var(--space-xl);overflow-y:auto;flex:1;align-items:center;justify-content:flex-start;width:100%;max-width:100%;box-sizing:border-box;margin:0;text-align:center}.goals-modal .goal-input-group{display:flex;flex-direction:column;gap:var(--space-md);position:relative;width:100%;max-width:100%;align-items:center;box-sizing:border-box;margin:0 auto;text-align:center}.goals-modal .goal-input-group label{display:flex!important;align-items:center!important;justify-content:center!important;gap:var(--space-md)!important;font-weight:600!important;color:var(--text-primary)!important;font-size:1rem!important;margin:0 auto var(--space-xs)!important;width:100%!important;max-width:100%!important;text-align:center!important;padding:0!important}.goals-modal .goal-icon{font-size:1.5rem;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2));transition:transform .2s ease;display:inline-block}.goals-modal .goal-input-group:hover .goal-icon{transform:scale(1.1)}.goals-modal .input-wrapper{position:relative;display:flex;flex-direction:column;gap:var(--space-xs);width:100%;max-width:100%;align-items:center;box-sizing:border-box;margin:0 auto;text-align:center;padding:0}.goals-modal .goal-input-group input{padding:var(--space-lg) var(--space-xl)!important;background:var(--card-bg-glass)!important;border:2px solid var(--card-border)!important;border-radius:16px!important;color:var(--text-primary)!important;font-size:1.1rem!important;font-weight:600!important;transition:all .3s ease!important;width:100%!important;max-width:100%!important;box-sizing:border-box!important;-webkit-backdrop-filter:blur(10px)!important;backdrop-filter:blur(10px)!important;text-align:center!important;margin:0 auto!important;display:block!important;text-align-last:center!important}.goals-modal .input-hint{font-size:.85rem!important;color:var(--text-muted)!important;font-weight:500!important;text-align:center!important;opacity:.7!important;transition:opacity .2s ease!important;padding:0!important;margin:0 auto!important;width:100%!important;display:block!important;text-align-last:center!important}.goals-modal .goal-input-group:hover .input-hint{opacity:1!important}.goals-modal .goal-input-group input:hover{border-color:var(--accent-light)!important;background:var(--hover-bg)!important;transform:translateY(-1px)!important;box-shadow:0 4px 12px #0000001a!important;text-align:center!important;text-align-last:center!important}.goals-modal .goal-input-group input:focus{outline:none!important;border-color:var(--accent)!important;background:var(--card-bg)!important;box-shadow:0 0 0 4px var(--accent-light),0 8px 24px #6366f133!important;transform:translateY(-2px)!important;text-align:center!important;text-align-last:center!important}.goals-modal .goal-input-group input::placeholder{color:var(--text-muted)!important;font-weight:400!important;text-align:center!important}.modal-actions{display:flex;gap:var(--space-md);justify-content:flex-end;padding:var(--space-lg) var(--space-xl) var(--space-xl);background:var(--card-bg-glass);border-top:1px solid var(--card-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.modal-actions:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.3}.cancel-btn,.save-btn{padding:var(--space-md) var(--space-xl);border-radius:14px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s ease;border:2px solid transparent;min-width:120px;display:flex;align-items:center;justify-content:center;gap:var(--space-xs);position:relative;overflow:hidden}.cancel-btn{background:var(--card-bg-glass);color:var(--text-secondary);border-color:var(--card-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.cancel-btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:var(--hover-bg);transform:translate(-50%,-50%);transition:width .3s ease,height .3s ease}.cancel-btn:hover:before{width:300px;height:300px}.cancel-btn:hover{color:var(--text-primary);border-color:var(--text-muted);transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.cancel-btn span{position:relative;z-index:1}.save-btn{background:var(--gradient-primary);color:var(--text-light);border:none;position:relative;overflow:hidden;box-shadow:0 4px 16px #6366f14d}.save-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s ease}.save-btn:hover:before{left:100%}.save-btn:hover{transform:translateY(-3px);box-shadow:0 8px 24px #6366f166}.save-btn:active{transform:translateY(-1px);box-shadow:0 4px 12px #6366f14d}.save-btn span{position:relative;z-index:1}@media (max-width: 768px){.study-streak-container{padding:var(--space-lg)}.streak-display,.goals-grid{grid-template-columns:1fr}.calendar-grid{gap:4px}.calendar-day,.day-number{font-size:.75rem}.goals-modal{max-width:95%;border-radius:20px;margin:var(--space-md)}.goals-modal .modal-header{padding:var(--space-lg) var(--space-lg) var(--space-md)}.goals-modal .modal-header h3{font-size:1.5rem;text-align:center!important;justify-content:center!important}.goals-modal .modal-content{padding:var(--space-lg);gap:var(--space-lg);align-items:center!important;text-align:center!important}.goals-modal .goal-input-group input{padding:var(--space-md) var(--space-lg)!important;font-size:1rem!important;text-align:center!important;text-align-last:center!important}.modal-actions{padding:var(--space-md) var(--space-lg) var(--space-lg);flex-direction:column}.cancel-btn,.save-btn{width:100%;min-width:auto}}@media (max-width: 480px){.goals-modal{max-width:100%;margin:0;border-radius:20px 20px 0 0;max-height:95vh}.goals-modal .modal-header{padding:var(--space-md) var(--space-md) var(--space-sm)}.goals-modal .modal-header h3{font-size:1.25rem;text-align:center!important;justify-content:center!important}.goals-modal .modal-content{padding:var(--space-md);align-items:center!important;text-align:center!important}.goals-modal .goal-input-group input{padding:var(--space-md)!important;text-align:center!important;text-align-last:center!important}}.study-streak-page{max-width:1200px;margin:0 auto;padding:2rem;min-height:calc(100vh - 80px)}.page-header{text-align:center;margin-bottom:2rem;padding:2rem;background:var(--card-bg-glass);border-radius:20px;border:1px solid var(--card-border);box-shadow:var(--shadow-lg)}.page-header h1{margin:0 0 .5rem;color:var(--text-primary);font-size:2.5rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.page-header p{margin:0;color:var(--text-secondary);font-size:1.1rem;line-height:1.6}@media (max-width: 768px){.study-streak-page{padding:1rem}.page-header{padding:1.5rem;margin-bottom:1.5rem}.page-header h1{font-size:2rem}.page-header p{font-size:1rem}}@media (max-width: 480px){.study-streak-page{padding:.75rem}.page-header{padding:1rem}.page-header h1{font-size:1.75rem}}.themes-page{max-width:1400px;margin:0 auto;padding:var(--space-2xl) var(--space-lg);min-height:calc(100vh - 100px);padding-bottom:calc(var(--space-2xl) + 100px)}.themes-header{text-align:center;margin-bottom:var(--space-2xl);position:relative}.themes-header-content{position:relative;z-index:1}.themes-title{font-size:clamp(2rem,5vw,3.5rem);font-weight:900;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-md);display:flex;align-items:center;justify-content:center;gap:var(--space-md);letter-spacing:-.02em}.title-icon{font-size:1.2em;filter:drop-shadow(0 0 10px var(--accent-light));animation:float-icon 3s ease-in-out infinite}@keyframes float-icon{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-10px) rotate(5deg)}}.themes-subtitle{font-size:clamp(1rem,2vw,1.2rem);color:var(--text-muted);max-width:600px;margin:0 auto;line-height:1.6}.themes-controls{margin-bottom:var(--space-2xl);display:flex;flex-direction:column;gap:var(--space-lg)}.search-container{position:relative;max-width:500px;margin:0 auto;width:100%}.search-icon{position:absolute;left:var(--space-lg);top:50%;transform:translateY(-50%);font-size:1.2rem;color:var(--text-muted);z-index:1}.theme-search{width:100%;padding:var(--space-md) var(--space-md) var(--space-md) calc(var(--space-lg) * 2.5);background:var(--card-bg-glass);border:2px solid var(--card-border);border-radius:var(--radius-2xl);color:var(--text-color);font-size:1rem;transition:all var(--transition-normal);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.theme-search:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-light);background:var(--card-bg)}.theme-search::placeholder{color:var(--text-muted)}.category-filters{display:flex;flex-wrap:wrap;gap:var(--space-md);justify-content:center;align-items:center}.category-btn{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);background:var(--card-bg-glass);border:2px solid var(--card-border);border-radius:var(--radius-xl);color:var(--text-color);font-size:.95rem;font-weight:600;cursor:pointer;transition:all var(--transition-normal);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.category-btn:hover{transform:translateY(-2px);border-color:var(--accent);background:var(--card-bg);box-shadow:var(--shadow-md)}.category-btn.active{background:var(--gradient-primary);color:var(--text-light);border-color:var(--accent);box-shadow:var(--shadow-lg)}.category-icon{font-size:1.1rem}.themes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--space-xl);margin-bottom:var(--space-2xl)}.theme-card{background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:2px solid var(--card-border);border-radius:var(--radius-2xl);padding:var(--space-xl);transition:all var(--transition-normal);position:relative;overflow:hidden;display:flex;flex-direction:column;gap:var(--space-lg);cursor:pointer;min-height:380px}.theme-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:var(--accent-light);opacity:0;transition:opacity var(--transition-normal);pointer-events:none}.theme-card:hover:not(.locked){transform:translateY(-8px) scale(1.02);border-color:var(--accent);box-shadow:var(--shadow-2xl)}.theme-card:hover:not(.locked):before{opacity:.1}.theme-card.current{border-color:var(--success);box-shadow:0 0 30px var(--success-light)}.theme-card.current:before{background:var(--success-light);opacity:.15}.theme-card.previewing{border-color:var(--info);box-shadow:0 0 30px var(--info-light)}.theme-card.locked{opacity:.7;cursor:not-allowed;filter:grayscale(.3)}.theme-card.locked:hover{transform:none}.lock-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#000000b3;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-sm);z-index:10;border-radius:var(--radius-2xl)}.lock-icon{font-size:3rem;animation:lock-pulse 2s ease-in-out infinite}@keyframes lock-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.lock-text{color:var(--text-light);font-weight:700;font-size:1.2rem;text-transform:uppercase;letter-spacing:.1em}.theme-preview{position:relative;height:120px;border-radius:var(--radius-xl);overflow:hidden;background:var(--bg-secondary);display:flex;align-items:center;justify-content:center;border:2px solid var(--card-border)}.color-swatches{display:flex;gap:var(--space-sm);width:100%;height:100%;padding:var(--space-md)}.color-swatch{flex:1;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);transition:transform var(--transition-normal)}.theme-card:hover .color-swatch{transform:scale(1.05)}.current-indicator{position:absolute;top:var(--space-sm);right:var(--space-sm);background:var(--gradient-success);color:var(--text-light);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-full);font-size:.85rem;font-weight:700;display:flex;align-items:center;gap:var(--space-xs);box-shadow:var(--shadow-lg);z-index:5}.sparkle{animation:sparkle 2s ease-in-out infinite}@keyframes sparkle{0%,to{transform:scale(1) rotate(0)}50%{transform:scale(1.2) rotate(180deg)}}.theme-info{flex:1;display:flex;flex-direction:column;gap:var(--space-sm)}.theme-name{font-size:1.5rem;font-weight:800;color:var(--text-light);margin:0;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.theme-description{color:var(--text-muted);font-size:.95rem;line-height:1.6;margin:0;flex:1}.unlock-info{margin-top:var(--space-sm);padding:var(--space-md);background:var(--card-bg);border-radius:var(--radius-lg);border:1px solid var(--card-border)}.level-requirement{display:flex;align-items:center;gap:var(--space-sm);color:var(--warning);font-weight:600;font-size:.9rem;margin-bottom:var(--space-sm)}.level-icon{font-size:1.1rem}.progress-info{display:flex;flex-direction:column;gap:var(--space-xs)}.progress-info span{font-size:.85rem;color:var(--text-muted)}.progress-bar{width:100%;height:6px;background:var(--bg-secondary);border-radius:var(--radius-full);overflow:hidden}.progress-fill{height:100%;background:var(--gradient-primary);border-radius:var(--radius-full);transition:width var(--transition-slow);box-shadow:0 0 10px var(--accent-light)}.theme-actions{margin-top:auto}.theme-actions button{width:100%;padding:var(--space-md) var(--space-xl);border:none;border-radius:var(--radius-xl);font-size:1rem;font-weight:700;cursor:pointer;transition:all var(--transition-normal);display:flex;align-items:center;justify-content:center;gap:var(--space-sm);text-transform:uppercase;letter-spacing:.05em;position:relative;overflow:hidden}.apply-btn{background:var(--gradient-primary);color:var(--text-light);box-shadow:var(--shadow-lg)}.apply-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl)}.apply-btn:active{transform:translateY(0)}.current-btn{background:var(--gradient-success);color:var(--text-light);box-shadow:var(--shadow-lg);cursor:default}.locked-btn{background:var(--bg-secondary);color:var(--text-muted);border:2px solid var(--card-border);cursor:not-allowed;opacity:.6}.lock-icon-small{font-size:1.1rem}.no-themes-found{grid-column:1 / -1;text-align:center;padding:var(--space-3xl);color:var(--text-muted)}.no-themes-icon{font-size:4rem;margin-bottom:var(--space-lg);opacity:.5}.no-themes-found h3{font-size:1.5rem;color:var(--text-color);margin-bottom:var(--space-sm)}.no-themes-found p{font-size:1rem;color:var(--text-muted)}@media (max-width: 1200px){.themes-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-lg)}}@media (max-width: 768px){.themes-page{padding:var(--space-xl) var(--space-md);padding-bottom:calc(var(--space-xl) + 100px)}.themes-title{font-size:2rem}.themes-subtitle{font-size:.95rem}.category-filters{gap:var(--space-sm)}.category-btn{padding:var(--space-xs) var(--space-md);font-size:.85rem}.themes-grid{grid-template-columns:1fr;gap:var(--space-lg)}.theme-card{min-height:350px}}@media (max-width: 480px){.themes-page{padding:var(--space-lg) var(--space-sm);padding-bottom:calc(var(--space-lg) + 100px)}.themes-title{font-size:1.75rem;flex-direction:column;gap:var(--space-sm)}.search-container{max-width:100%}.category-btn{padding:var(--space-xs) var(--space-sm);font-size:.8rem}.category-name{display:none}.theme-card{min-height:320px;padding:var(--space-lg)}.theme-preview{height:100px}.theme-name{font-size:1.3rem}.theme-description{font-size:.9rem}}.themes-page .notification-modal-overlay{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;width:100vw!important;height:100vh!important;z-index:10000!important}.themes-page .notification-modal-content{position:relative!important;margin:0 auto!important;max-width:500px!important;width:90%!important}.help-guide-container{min-height:100vh;background:radial-gradient(ellipse at top left,var(--accent-light) 0%,transparent 50%),radial-gradient(ellipse at top right,var(--accent-light) 0%,transparent 50%),radial-gradient(ellipse at bottom left,var(--accent-light) 0%,transparent 50%),radial-gradient(ellipse at bottom right,var(--info-light) 0%,transparent 50%),var(--bg-dark);padding:3rem 2rem;position:relative;overflow-x:hidden;overflow-y:visible;max-width:1600px;margin:0 auto;width:100%;box-sizing:border-box;animation:pageSlideIn 1s ease-out}.floating-elements{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:hidden}.floating-circle{position:absolute;border-radius:50%;background:linear-gradient(135deg,var(--accent-light),var(--accent-light),var(--accent-light));-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--accent);box-shadow:var(--shadow-lg),inset 0 1px 0 var(--glass-border);animation:floatCircle 20s ease-in-out infinite}@keyframes floatCircle{0%,to{transform:translateY(0) translate(0) scale(1);opacity:.6}33%{transform:translateY(-30px) translate(20px) scale(1.1);opacity:.8}66%{transform:translateY(20px) translate(-15px) scale(.9);opacity:.4}}.floating-circle-1{width:300px;height:300px;top:10%;left:5%;animation-delay:0s}.floating-circle-2{width:200px;height:200px;top:60%;right:10%;animation-delay:2s}.floating-circle-3{width:250px;height:250px;bottom:15%;left:15%;animation-delay:4s}.floating-circle-4{width:180px;height:180px;top:30%;right:20%;animation-delay:6s}.floating-circle-5{width:220px;height:220px;bottom:30%;right:5%;animation-delay:8s}.help-guide-header{text-align:center;margin-bottom:3rem;position:relative;z-index:1}.help-title{font-size:clamp(2.5rem,5vw,4rem);font-weight:900;background:var(--gradient-primary);background-size:300% 300%;animation:gradientShift 5s ease-in-out infinite;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1.5rem;position:relative;letter-spacing:-.02em;filter:drop-shadow(0 0 30px var(--accent-light));display:inline-block}.help-title:after{content:"";position:absolute;bottom:-15px;left:50%;transform:translate(-50%);width:0;height:4px;background:linear-gradient(90deg,transparent,var(--accent),var(--accent2),var(--accent),var(--accent2),var(--accent),transparent);border-radius:2px;animation:lineExpand 1.5s ease-out forwards}@keyframes lineExpand{0%{width:0;opacity:0}to{width:clamp(150px,30vw,250px);opacity:1}}.help-subtitle{font-size:clamp(1rem,2vw,1.3rem);color:var(--text-muted);font-weight:400;max-width:700px;margin:0 auto;line-height:1.7;text-shadow:var(--shadow-md)}.help-guide-content{display:grid;grid-template-columns:380px 1fr;gap:2rem;max-width:1500px;margin:0 auto;position:relative;z-index:1}.help-navigation{background:var(--card-bg-glass);-webkit-backdrop-filter:blur(30px) saturate(180%);backdrop-filter:blur(30px) saturate(180%);border:1px solid var(--card-border);border-radius:24px;padding:2rem;height:fit-content;position:sticky;top:2rem;box-shadow:var(--shadow-xl),inset 0 1px 0 var(--glass-border);transition:all .3s ease}.help-navigation:hover{border-color:var(--accent);box-shadow:var(--shadow-xl),inset 0 1px 0 var(--glass-border)}.help-navigation .nav-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.help-navigation h3{font-size:clamp(1.1rem,2vw,1.4rem);font-weight:800;margin:0;text-align:center;flex:1;background:var(--gradient-primary);background-size:200% 200%;animation:gradientShift 3s ease-in-out infinite;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 2px 8px var(--accent-light))}.mobile-nav-close{display:none;background:none;border:none;color:var(--text-color);font-size:1.5rem;cursor:pointer;padding:var(--space-xs);border-radius:var(--radius-sm);transition:all var(--transition-normal)}.mobile-nav-close:hover{background:var(--accent-light);color:var(--text-light)}.mobile-nav-toggle{display:none;position:fixed;top:1rem;right:1rem;z-index:1000;background:var(--gradient-primary);color:var(--text-light);border:none;border-radius:var(--radius-lg);padding:var(--space-sm) var(--space-md);font-size:1rem;font-weight:600;cursor:pointer;box-shadow:var(--shadow-lg);gap:var(--space-xs);align-items:center;justify-content:center}.mobile-nav-toggle .toggle-icon{font-size:1.2rem}.help-breadcrumbs{display:flex;align-items:center;gap:var(--space-xs);margin-bottom:var(--space-md);font-size:.9rem;flex-wrap:wrap}.breadcrumb-item{background:none;border:none;color:var(--accent);cursor:pointer;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);transition:all var(--transition-normal);font-size:inherit;font-weight:600}.breadcrumb-item:hover{background:var(--accent-light);color:var(--text-light);transform:translateY(-1px)}.breadcrumb-separator{color:var(--text-muted);margin:0 var(--space-xs)}.breadcrumb-current{color:var(--text-color);font-weight:600}.quick-jump-links{background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-xl)}.jump-links-title{font-size:1rem;font-weight:700;margin-bottom:var(--space-md);color:var(--text-light);text-align:center}.jump-links-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:var(--space-sm)}.jump-link-btn{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);padding:var(--space-sm) var(--space-md);color:var(--text-color);font-size:.85rem;font-weight:600;cursor:pointer;transition:all var(--transition-normal);text-align:center}.jump-link-btn:hover{background:var(--accent-light);color:var(--text-light);border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-md)}.help-search-container{margin-bottom:var(--space-lg)}.help-search-box{position:relative;display:flex;align-items:center;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:var(--space-sm);transition:all var(--transition-normal)}.help-search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}.search-icon{font-size:1.1rem;color:var(--text-muted);margin-right:var(--space-sm);flex-shrink:0}.help-search-input{flex:1;border:none;background:transparent;color:var(--text-color);font-size:.95rem;outline:none;padding:var(--space-xs) 0}.help-search-input::placeholder{color:var(--text-muted)}.search-clear-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:var(--space-xs);border-radius:var(--radius-sm);transition:all var(--transition-normal);font-size:.9rem;flex-shrink:0}.search-clear-btn:hover{background:var(--accent-light);color:var(--text-light)}.no-results{text-align:center;padding:var(--space-xl);color:var(--text-muted);background:var(--card-bg-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:var(--radius-lg);border:1px solid var(--card-border);margin-top:var(--space-md)}.no-results-icon{font-size:3rem;margin-bottom:var(--space-md);opacity:.6}.no-results p{margin:var(--space-sm) 0;font-size:1rem}.no-results-suggestion{font-size:.9rem!important;opacity:.7;font-style:italic}.search-results-count{text-align:center;padding:var(--space-sm) var(--space-md);margin-top:var(--space-md);background:var(--accent-light);color:var(--accent);border-radius:var(--radius-md);font-size:.9rem;font-weight:600;border:1px solid var(--accent)}.search-highlight{background:var(--gradient-warning);color:var(--text-light);padding:.1em .2em;border-radius:var(--radius-sm);font-weight:700;box-shadow:0 0 8px var(--warning-light);animation:highlightPulse 1.5s ease-in-out infinite}@keyframes highlightPulse{0%,to{box-shadow:0 0 8px var(--warning-light)}50%{box-shadow:0 0 16px var(--warning-light)}}.no-results p{margin-bottom:var(--space-md);font-size:.9rem}.clear-search-btn{background:var(--gradient-primary);color:#fff;border:none;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-lg);cursor:pointer;font-size:.85rem;font-weight:500;transition:all var(--transition-normal)}.clear-search-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.help-nav{display:flex;flex-direction:column;gap:var(--space-sm)}.help-navigation .nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;padding:1.25rem 1rem;border:1px solid var(--card-border);border-radius:16px;background:var(--card-bg-glass);color:var(--text-color);font-size:.95rem;min-width:100%;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);text-align:center;position:relative;overflow:hidden;min-height:85px;width:100%;box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.help-navigation .nav-item:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--gradient-primary);opacity:.1;transition:left var(--transition-normal)}.help-navigation .nav-item:hover:before{left:0}.help-navigation .nav-item:hover{background:var(--accent-light);transform:translateY(-3px);color:var(--text-light);box-shadow:var(--shadow-lg)}.help-navigation .nav-item.active{background:var(--gradient-primary);color:var(--text-light);box-shadow:var(--shadow-xl),inset 0 1px 0 var(--glass-border);transform:translateY(-2px);border-color:var(--accent)}.help-navigation .nav-item.active:before{display:none}.nav-icon{font-size:2rem;min-width:32px;text-align:center;margin-bottom:var(--space-xs)}.nav-text{font-size:.9rem;font-weight:600;line-height:1.3;text-align:center;word-wrap:break-word;-webkit-hyphens:auto;hyphens:auto}.help-main-content{background:var(--card-bg-glass);-webkit-backdrop-filter:blur(30px) saturate(180%);backdrop-filter:blur(30px) saturate(180%);border:1px solid var(--card-border);border-radius:24px;padding:2.5rem;box-shadow:var(--shadow-xl),inset 0 1px 0 var(--glass-border);position:relative;overflow:hidden}.help-main-content:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);background-size:200% 100%;animation:gradientShift 3s ease-in-out infinite;border-radius:24px 24px 0 0}.section-header{margin-bottom:var(--space-2xl);text-align:center;position:relative}.section-header h2{position:relative;z-index:1}display: flex; flex-direction: column; align-items: center; justify-content: center; } .section-header h2{font-size:clamp(1.8rem,4vw,2.5rem);font-weight:800;color:var(--text-color);display:flex;align-items:center;justify-content:center;gap:1rem;margin-bottom:1.5rem;background:var(--gradient-primary);background-size:200% 200%;animation:gradientShift 4s ease-in-out infinite;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 2px 10px var(--accent-light))}.section-icon{font-size:2.5rem;filter:drop-shadow(0 4px 15px var(--accent-light))}.section-description{font-size:1.1rem;color:var(--text-muted);line-height:1.7;max-width:800px;margin:0 auto;text-align:center}.user-types-nav{display:flex;gap:var(--space-md);margin-bottom:var(--space-2xl);flex-wrap:wrap;justify-content:center}.user-type-btn{padding:var(--space-md) var(--space-lg);border:2px solid var(--border-color);border-radius:var(--radius-xl);background:var(--glass-bg);color:var(--text-color);font-weight:600;cursor:pointer;transition:all var(--transition-normal);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:relative;overflow:hidden}.user-type-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--gradient-primary);opacity:.1;transition:left 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var(--transition-normal);border-radius:inherit}.feature-item:hover:before{opacity:1}.feature-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--accent)}.feature-text{font-size:1rem;color:var(--text-color);font-weight:500;line-height:1.6}.feature-card{position:relative;z-index:1;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:var(--space-lg);transition:all var(--transition-normal);overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--gradient-primary);transform:scaleY(0);transition:transform var(--transition-normal)}.feature-card:hover:before{transform:scaleY(1)}.feature-card:hover{background:var(--accent-light);transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--accent)}.feature-card h4{font-size:1.1rem;font-weight:700;color:var(--text-light);margin-bottom:var(--space-sm);display:flex;align-items:center;gap:var(--space-xs)}.feature-card p{font-size:.95rem;color:var(--text-muted);line-height:1.6}.steps-list{display:grid;gap:var(--space-lg);margin-bottom:var(--space-2xl)}.step-item{display:flex;gap:1.5rem;align-items:flex-start;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);border:1px solid var(--card-border);border-radius:20px;padding:1.75rem;position:relative;overflow:hidden;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-md)}.step-item:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,var(--accent-light),var(--accent-light),var(--accent-light));opacity:0;transition:opacity var(--transition-normal);border-radius:inherit}.step-item:hover:before{opacity:1}.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--accent)}.step-number{width:56px;height:56px;border-radius:50%;background:var(--gradient-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:800;flex-shrink:0;box-shadow:0 4px 16px #6366f166,inset 0 1px #fff3;position:relative;z-index:1;border:2px solid rgba(255,255,255,.2)}.step-content{flex:1;position:relative;z-index:1}.step-content h4{font-size:1.3rem;font-weight:700;color:var(--text-light);margin-bottom:var(--space-sm)}.step-content p{font-size:1rem;color:var(--text-muted);line-height:1.6}.tips-list{display:grid;gap:var(--space-xl);margin-bottom:var(--space-2xl)}.tip-category{background:#ffffff0a;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);border:1px solid 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0;color:var(--text-color);font-size:1rem;line-height:1.6;position:relative;padding-left:var(--space-lg)}.tip-category li:before{content:"✨";position:absolute;left:0;top:var(--space-sm);font-size:1rem}.problems-list{display:grid;gap:var(--space-lg);margin-bottom:var(--space-2xl)}.problem-item{background:#ffffff0a;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:1.75rem;position:relative;overflow:hidden;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 16px #0003}.problem-item:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,var(--danger-light),var(--danger-light),var(--danger-light));opacity:0;transition:opacity var(--transition-normal);border-radius:inherit}.problem-item:hover:before{opacity:1}.problem-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--danger)}.problem-item h4{font-size:1.3rem;font-weight:700;color:var(--danger);margin-bottom:var(--space-lg);position:relative;z-index:1}.problem-item ul{list-style:none;padding:0;position:relative;z-index:1}.problem-item li{padding:var(--space-sm) 0;color:var(--text-color);font-size:1rem;line-height:1.6;position:relative;padding-left:var(--space-lg)}.limitations-list,.benefits-highlight,.note-highlight{background:#ffffff0a;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:1.75rem;margin-bottom:1.5rem;position:relative;overflow:hidden;box-shadow:0 4px 16px #0003}.limitations-list{border-left:4px solid var(--warning)}.benefits-highlight{border-left:4px solid var(--success)}.note-highlight{border-left:4px solid var(--info)}.limitations-list h4,.benefits-highlight h4,.note-highlight h4{font-size:1.3rem;font-weight:700;margin-bottom:var(--space-md)}.limitations-list 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h3{font-size:1.5rem;font-weight:700;color:var(--text-light);margin-bottom:var(--space-lg);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.quick-help-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--space-md);justify-content:center;align-items:center;max-width:1000px;margin:0 auto}.quick-help-btn{padding:.875rem 1.5rem;border:2px solid rgba(99,102,241,.5);border-radius:16px;background:var(--gradient-primary);color:#fff;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;font-size:.95rem;box-shadow:0 4px 12px #6366f14d}.quick-help-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left 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992px){.help-guide-content{grid-template-columns:1fr;gap:var(--space-lg)}.help-navigation{position:static;order:2;margin-top:var(--space-lg)}.help-main-content{order:1}.user-types-nav{flex-direction:column;align-items:center}.user-type-btn{width:100%;max-width:400px}.quick-help-buttons{grid-template-columns:repeat(2,1fr);gap:var(--space-sm)}.help-navigation h3{font-size:1.2rem}.help-navigation .nav-item{min-width:250px;min-height:60px;padding:var(--space-md) var(--space-sm);font-size:.9rem}.nav-icon{font-size:1.4rem;min-width:26px}.nav-text{font-size:.8rem}.help-search-input{font-size:.9rem}.search-icon{font-size:1rem}}@media (max-width: 768px){.help-guide-container{padding:4rem 1rem 1.5rem}.mobile-nav-toggle{display:flex}.help-guide-header{margin-bottom:2rem}.help-subtitle{font-size:1rem;padding:0 1rem}.help-guide-content{grid-template-columns:1fr;gap:1.5rem}.help-navigation{position:fixed;top:0;left:0;width:100%;max-width:320px;height:100vh;z-index:999;transform:translate(-100%);transition:transform .3s ease;overflow-y:auto;order:2;margin-top:0;padding:1.5rem;box-shadow:var(--shadow-2xl)}.help-navigation.mobile-open{transform:translate(0)}.mobile-nav-close{display:block}.help-main-content{order:1;padding:1.5rem}.section-header h2{font-size:1.8rem;flex-direction:column;gap:var(--space-sm);text-align:center;justify-content:center;align-items:center}.section-icon{font-size:2rem}.step-item{flex-direction:column;text-align:center;gap:var(--space-md)}.step-number{align-self:center}.quick-help-buttons{display:grid;grid-template-columns:1fr;gap:var(--space-sm);align-items:center}.quick-help-btn{width:100%;max-width:100%;padding:var(--space-sm) var(--space-md);font-size:.9rem}.feature-card h4{font-size:1.1rem}.feature-card p{font-size:.9rem}.tip-category 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svg{width:14px;height:14px}.achievement-content{flex:1;display:flex;flex-direction:column;gap:.75rem;position:relative;z-index:1;min-width:0}.achievement-title{font-size:1.25rem;font-weight:700;color:var(--achievement-text-primary);margin:0;line-height:1.3;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.achievement-description{color:var(--achievement-text-secondary);margin:0;font-size:.9rem;line-height:1.5;flex:1;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.achievement-meta{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:auto;flex-wrap:wrap}.rarity-badge{padding:.4rem .75rem;border-radius:8px;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}.rarity-common{background:var(--text-disabled);color:var(--text-muted);border:1px solid var(--border-color)}.rarity-rare{background:var(--info-light);color:var(--info);border:1px solid var(--info-light)}.rarity-epic{background:var(--accent-light);color:var(--accent2);border:1px solid var(--accent-light)}.rarity-legendary{background:var(--warning-light);color:var(--warning);border:1px solid var(--warning-light)}.progress-container{display:flex;align-items:center;gap:.5rem;flex:1;min-width:120px}.progress-bar{flex:1;height:10px;background:var(--bg-tertiary);border-radius:var(--radius-md);overflow:hidden;position:relative;min-width:80px;border:1px solid var(--card-border)}.progress-fill{height:100%;background:var(--gradient-primary);border-radius:var(--radius-md);transition:width .8s cubic-bezier(.4,0,.2,1);position:relative;box-shadow:0 0 10px var(--accent-transparent-40)}.progress-fill:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,var(--white-transparent-20),transparent);animation:progressShimmer 2s ease-in-out infinite}@keyframes progressShimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.progress-fill.completed{background:var(--gradient-success);animation:progressComplete .6s ease-out}@keyframes progressComplete{0%{transform:scaleX(.8)}50%{transform:scaleX(1.1)}to{transform:scaleX(1)}}.progress-text{color:var(--achievement-text-secondary);font-weight:600;font-size:.8rem;white-space:nowrap}.achievement-error{text-align:center;padding:3rem;color:var(--achievement-text-secondary)}.achievement-error p:first-child{color:var(--danger);font-weight:600;margin-bottom:.5rem;font-size:1.1rem}.achievement-notification{position:fixed;top:2rem;right:2rem;background:#ffffff1a;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:1.5rem;box-shadow:0 8px 32px #0006;z-index:1000;max-width:400px;display:flex;align-items:center;gap:1rem}.notification-content h4{margin:0 0 .5rem;color:var(--achievement-text-primary);font-weight:700}.notification-content p{margin:0;color:var(--achievement-text-secondary);font-size:.9rem}.notification-close{background:none;border:none;color:var(--achievement-text-secondary);font-size:1.5rem;cursor:pointer;padding:.25rem;border-radius:4px;transition:all .3s ease;line-height:1}.notification-close:hover{background:#ffffff1a;color:var(--achievement-text-primary)}.near-impossible-section{border:2px solid rgba(245,158,11,.3);background:#f59e0b0d;position:relative;overflow:hidden}.near-impossible-section:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--warning),var(--warning-light),var(--warning));animation:shimmer 3s infinite}.near-impossible-title{color:var(--warning);text-shadow:0 0 20px rgba(245,158,11,.5)}.near-impossible-description{color:var(--achievement-text-secondary);font-size:.95rem;margin:0 0 1.5rem;padding:1rem;background:#f59e0b1a;border-radius:12px;border-left:3px solid #f59e0b;font-style:italic}.near-impossible-card{border-color:#f59e0b66!important;background:#f59e0b14}.near-impossible-card.unlocked{background:#f59e0b26;border-color:#f59e0b99!important;box-shadow:0 0 30px #f59e0b66!important}.near-impossible-card .achievement-icon{background:linear-gradient(135deg,#f59e0b4d,#fbbf244d);border-color:#f59e0b80;box-shadow:0 0 20px #f59e0b4d}.near-impossible-card.unlocked .achievement-icon{background:linear-gradient(135deg,#f59e0b66,#fbbf2466);border-color:#f59e0bb3;box-shadow:0 0 30px #f59e0b80;animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1);box-shadow:0 0 30px #f59e0b80}50%{transform:scale(1.05);box-shadow:0 0 40px #f59e0bb3}}@media (max-width: 1200px){.category-achievements{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}}@media (max-width: 768px){.achievement-system,.achievement-header{padding:1.5rem}.header-content{flex-direction:column;text-align:center;gap:1.5rem}.progress-overview{flex-direction:column;gap:1rem;width:100%}.category-achievements{grid-template-columns:1fr}.achievement-card{padding:1.25rem;min-height:auto}.achievement-icon{width:60px;height:60px;font-size:2rem}.achievement-title{font-size:1.1rem}.filter-controls{flex-wrap:wrap;justify-content:center}.filter-btn{flex:1;min-width:100px}}@media (max-width: 480px){.achievement-system{padding:1rem}.achievement-header{padding:1.25rem}.achievement-main-title{font-size:1.75rem;flex-direction:column;align-items:flex-start;gap:.5rem}.title-icon{font-size:2rem}.achievement-card{padding:1rem;flex-direction:column;text-align:center;gap:1rem}.achievement-icon-wrapper{align-self:center}.achievement-icon{width:55px;height:55px;font-size:1.8rem}.achievement-meta{justify-content:center;flex-direction:column;align-items:stretch}.progress-container{width:100%}.achievement-notification{top:1rem;right:1rem;left:1rem;max-width:none}}.friends-system{max-width:1200px;margin:0 auto;padding:2rem;background:transparent;border-radius:24px;position:relative;overflow:visible}.friends-header{text-align:center;margin-bottom:2.5rem;position:relative}.friends-header:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:300px;height:300px;background:radial-gradient(circle,var(--accent-light) 0%,transparent 70%);border-radius:50%;animation:headerGlow 3s ease-in-out infinite;z-index:0}.friends-header h2{color:var(--text-primary);margin-bottom:1rem;font-size:clamp(2rem,5vw,2.5rem);background:var(--gradient-primary);background-size:200% 200%;animation:gradientShift 5s ease infinite;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:800;filter:drop-shadow(0 4px 20px var(--accent-light));letter-spacing:-.02em;position:relative;z-index:1}.friends-header p{color:var(--text-secondary);font-size:clamp(1rem,2.5vw,1.15rem);line-height:1.6;position:relative;z-index:1}.friends-tabs{display:flex;justify-content:center;margin-bottom:2rem;gap:.75rem;padding:.75rem;flex-wrap:wrap;background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:18px;border:1px solid var(--card-border)}.tab-button{background:var(--card-bg-glass);border:2px solid var(--accent-light);padding:.875rem 1.5rem;cursor:pointer;color:var(--text-secondary);font-weight:600;border-radius:18px;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;display:flex;align-items:center;gap:.5rem;touch-action:manipulation;-webkit-tap-highlight-color:transparent;min-height:44px;white-space:nowrap;flex-shrink:0;font-size:.95rem;overflow:hidden}.tab-button.active{color:var(--text-light);background:var(--gradient-primary);border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-xl)}.tab-count{background:var(--accent-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text-primary);border-radius:12px;padding:.25rem .5rem;font-size:.75em;min-width:22px;height:22px;display:flex;align-items:center;justify-content:center;font-weight:700;border:1px solid var(--accent);box-shadow:var(--shadow-sm)}.tab-button.active .tab-count{background:var(--card-bg-glass);color:var(--text-light);border-color:var(--card-border);box-shadow:var(--shadow-sm)}.tab-content{min-height:400px}.friends-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.friend-card{background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--accent);border-radius:20px;padding:1.75rem;display:flex;align-items:center;gap:1.25rem;position:relative;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm),0 0 0 1px var(--accent-light),inset 0 1px 0 var(--glass-border);overflow:hidden}.friend-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);opacity:0;transition:opacity .3s ease}.friend-card:hover:before{opacity:1}.friend-card:hover{border-color:var(--accent);transform:translateY(-4px) scale(1.01);box-shadow:var(--shadow-xl),0 0 0 1px var(--accent-light),inset 0 1px 0 var(--glass-border);background:var(--card-bg-glass)}.friend-avatar{width:56px;height:56px;border-radius:50%;background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-weight:800;font-size:1.5em;box-shadow:var(--shadow-lg);border:2px solid var(--card-border);position:relative;overflow:hidden;flex-shrink:0}.friend-avatar:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent,var(--glass-border),transparent);animation:shimmer 3s infinite}.friend-info{flex:1}.friend-info{flex:1;min-width:0}.friend-info h4{margin:0 0 .5rem;color:var(--text-primary);font-size:clamp(1rem,2.5vw,1.15rem);font-weight:700;line-height:1.3;word-wrap:break-word}.friend-level{color:var(--text-secondary);font-size:clamp(.85rem,2vw,.95rem);margin:0 0 .75rem;font-weight:500;line-height:1.4}.friend-status{display:flex;align-items:center;gap:6px;font-size:.85em;color:var(--text-secondary)}.status-indicator{width:10px;height:10px;border-radius:50%;display:inline-block;flex-shrink:0}.status-indicator.online{background:var(--success);box-shadow:0 0 8px var(--success-light),0 0 12px var(--success-light);animation:pulseOnline 2s ease-in-out infinite}@keyframes pulseOnline{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.1)}}.status-indicator.offline{background:var(--text-muted);box-shadow:0 0 4px var(--text-muted)}.friend-actions{display:flex;gap:.5rem;position:absolute;top:10px;right:10px;z-index:2}.remove-friend-btn{position:static;background:var(--gradient-danger);color:var(--text-light);border:none;border-radius:50%;width:32px;height:32px;cursor:pointer;font-size:1.1rem;opacity:0;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);border:2px solid var(--card-border)}.friend-card:hover .remove-friend-btn{opacity:1}.remove-friend-btn:hover{background:var(--gradient-danger);transform:scale(1.15) rotate(90deg);box-shadow:var(--shadow-md)}.block-user-btn{position:static;background:var(--gradient-danger);color:var(--text-light);border:none;border-radius:10px;padding:.5rem .75rem;cursor:pointer;font-size:.75rem;opacity:0;transition:all .3s cubic-bezier(.4,0,.2,1);font-weight:600;box-shadow:var(--shadow-sm);border:1px solid var(--card-border)}.friend-card:hover .block-user-btn{opacity:1}.block-user-btn:hover{background:var(--gradient-danger);transform:scale(1.05);box-shadow:var(--shadow-md)}.unblock-user-btn{background:var(--gradient-primary);color:var(--text-light);border:none;border-radius:18px;padding:.75rem 1.5rem;cursor:pointer;font-size:.9rem;transition:all .3s cubic-bezier(.4,0,.2,1);font-weight:600;margin-top:1rem;box-shadow:var(--shadow-lg);border:1px solid var(--card-border);position:relative;overflow:hidden}.unblock-user-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left .5s ease}.unblock-user-btn:hover:before{left:100%}.unblock-user-btn:hover{background:var(--gradient-primary);transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-xl)}.blocked-users-section{padding:20px}.blocked-users-section h3{color:var(--text-primary);margin:0 0 1.5rem;font-size:clamp(1.25rem,3vw,1.5rem);display:flex;align-items:center;gap:.75rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 2px 4px var(--accent-light))}.blocked-users-section h3:before{content:"🚫";font-size:1.5em;filter:drop-shadow(0 2px 4px var(--shadow-sm))}.blocked-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:20px}.blocked-user-card{background:var(--gradient-danger);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:1.75rem;border-radius:20px;text-align:center;color:var(--text-light);box-shadow:var(--shadow-xl),0 0 0 1px var(--glass-border),inset 0 1px 0 var(--glass-border);border:1px solid var(--card-border);transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.blocked-user-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--glass-border),var(--glass-border));opacity:0;transition:opacity .3s ease}.blocked-user-card:hover:before{opacity:1}.blocked-user-card:hover{transform:translateY(-4px) scale(1.02);box-shadow:var(--shadow-xl),0 0 0 1px var(--glass-border),inset 0 1px 0 var(--glass-border)}.blocked-user-card h4{margin:0 0 5px;font-size:1.1em;font-weight:600}.blocked-user-card p{margin:0 0 15px;opacity:.9;font-size:.9em}.no-blocked-users{text-align:center;padding:4rem 2rem;color:var(--text-secondary);background:var(--accent-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;border:2px dashed var(--accent)}.no-blocked-users p{font-size:clamp(1rem,2.5vw,1.15rem);margin:1rem 0 0;font-weight:500;line-height:1.6}.no-blocked-users .emoji{font-size:clamp(2.5rem,6vw,3.5rem);margin-bottom:1rem;display:block;filter:drop-shadow(0 4px 8px var(--shadow-sm))}.requests-section h3{color:var(--text-primary);margin:0 0 1.25rem;font-size:clamp(1.15rem,3vw,1.35rem);font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 2px 4px var(--accent-light))}.requests-list{margin-bottom:30px}.request-card{background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--accent);border-radius:18px;padding:1.25rem;display:flex;align-items:center;gap:1.25rem;margin-bottom:.875rem;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm),0 0 0 1px var(--accent-light),inset 0 1px 0 var(--glass-border);position:relative;overflow:hidden}.request-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--gradient-primary);opacity:0;transition:opacity .3s ease}.request-card:hover:before{opacity:1}.request-card:hover{border-color:var(--accent);transform:translate(4px);box-shadow:var(--shadow-lg),0 0 0 1px var(--accent-light),inset 0 1px 0 var(--glass-border);background:var(--card-bg-glass)}.request-avatar{width:48px;height:48px;border-radius:50%;background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-weight:800;font-size:1.2em;box-shadow:var(--shadow-md);border:2px solid var(--card-border);flex-shrink:0}.request-info{flex:1}.request-info h4{margin:0 0 3px;color:var(--text-primary)}.request-time{color:var(--text-secondary);font-size:.85em;margin:0}.request-actions{display:flex;gap:10px}.accept-btn,.decline-btn{padding:.75rem 1.25rem;border:none;border-radius:14px;cursor:pointer;font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1);touch-action:manipulation;-webkit-tap-highlight-color:transparent;font-size:.9rem;position:relative;overflow:hidden;min-width:100px}.accept-btn:before,.decline-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left .5s ease}.accept-btn:hover:before,.decline-btn:hover:before{left:100%}.accept-btn{background:var(--gradient-success);color:var(--text-light);box-shadow:var(--shadow-lg)}.accept-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-xl)}.decline-btn{background:var(--gradient-danger);color:var(--text-light);box-shadow:var(--shadow-lg)}.decline-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-xl)}.pending-label{background:var(--gradient-warning);color:var(--text-light);padding:.5rem 1rem;border-radius:18px;font-size:.85em;font-weight:600;box-shadow:var(--shadow-sm);border:1px solid var(--card-border)}.no-requests{text-align:center;color:var(--text-secondary);font-style:italic;padding:2rem;background:var(--accent-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:18px;border:2px dashed var(--accent);font-size:clamp(.95rem,2.5vw,1.05rem);font-weight:500}.search-section{max-width:800px;margin:0 auto}.search-input-container{position:relative;margin-bottom:30px}.search-input{width:100%;padding:1rem 1.25rem;border:2px solid var(--accent-light);border-radius:16px;font-size:1rem;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text-primary);transition:all .3s cubic-bezier(.4,0,.2,1);box-sizing:border-box;font-weight:500}.search-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-light),var(--shadow-lg);background:var(--card-bg-glass);transform:translateY(-1px)}.search-input::placeholder{color:var(--text-secondary);opacity:.7}.search-loading{position:absolute;right:15px;top:50%;transform:translateY(-50%);font-size:1.2em;animation:pulse 1.5s infinite}.search-results{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:15px}.search-result-card{background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--accent);border-radius:20px;padding:1.5rem;display:flex;align-items:center;gap:1.25rem;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm),0 0 0 1px var(--accent-light),inset 0 1px 0 var(--glass-border);position:relative;overflow:hidden}.search-result-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);opacity:0;transition:opacity .3s ease}.search-result-card:hover:before{opacity:1}.search-result-card:hover{border-color:var(--accent);transform:translateY(-4px) scale(1.01);box-shadow:var(--shadow-xl),0 0 0 1px var(--accent-light),inset 0 1px 0 var(--glass-border);background:var(--card-bg-glass)}.search-result-avatar{width:52px;height:52px;border-radius:50%;background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-weight:800;font-size:1.4em;box-shadow:var(--shadow-lg);border:2px solid var(--card-border);flex-shrink:0;position:relative;overflow:hidden}.search-result-avatar:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent,var(--glass-border),transparent);animation:shimmer 3s infinite}.search-result-info{flex:1}.search-result-info h4{margin:0 0 3px;color:var(--text-primary)}.search-result-level{color:var(--text-secondary);font-size:.85em;margin:0}.search-result-actions{display:flex;flex-direction:column;gap:8px;align-items:stretch;min-width:120px}.search-block-btn{background:var(--gradient-danger);color:var(--text-light);border:none;border-radius:12px;padding:.625rem 1rem;cursor:pointer;font-size:.85rem;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;font-weight:600;box-shadow:var(--shadow-sm);border:1px solid var(--card-border);position:relative;overflow:hidden}.search-block-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left .5s ease}.search-block-btn:hover:before{left:100%}.search-block-btn:hover{background:var(--gradient-danger);transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-md)}.add-friend-btn{background:var(--gradient-primary);color:var(--text-light);border:none;padding:.75rem 1.25rem;border-radius:14px;cursor:pointer;font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1);touch-action:manipulation;-webkit-tap-highlight-color:transparent;font-size:.9rem;box-shadow:var(--shadow-lg);position:relative;overflow:hidden;min-width:110px}.add-friend-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left .5s ease}.add-friend-btn:hover:before{left:100%}.add-friend-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-xl)}.empty-state,.no-results,.search-hint{text-align:center;color:var(--text-secondary);padding:4rem 2rem;font-size:clamp(1rem,2.5vw,1.15rem);background:var(--accent-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;border:2px dashed var(--accent);line-height:1.6}.no-results p,.search-hint p,.empty-state p{margin:0;font-weight:500}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@media (max-width: 768px){.friends-system{padding:1.25rem;margin:.5rem;border-radius:20px}.friends-header{margin-bottom:2rem}.friends-header h2{font-size:clamp(1.75rem,6vw,2rem);margin-bottom:1rem}.friends-header p{font-size:clamp(.95rem,2.5vw,1.05rem);padding:0 1rem;line-height:1.6}.friends-tabs{flex-wrap:wrap;justify-content:center;gap:.625rem;margin-bottom:1.5rem;padding:.75rem}.tab-button{padding:.875rem 1.25rem;font-size:clamp(.85rem,2.5vw,.9rem);white-space:nowrap;border-radius:16px;flex-shrink:0}.tab-button.active{background:var(--primary-color);color:var(--text-light);border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 4px 15px rgba(var(--primary-color-rgb),.2)}.tab-count{background:var(--glass-border);font-size:.8em}.tab-button.active 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480px){.friends-system{padding:1rem;margin:.25rem}.friends-header{margin-bottom:1.5rem}.friends-header h2{font-size:clamp(1.5rem,7vw,1.75rem)}.friends-header p{font-size:clamp(.9rem,3vw,1rem);padding:0 .75rem}.friends-tabs{flex-wrap:wrap;justify-content:center;gap:.625rem;margin-bottom:1.5rem;padding:.75rem}.tab-button{padding:.875rem 1rem;font-size:clamp(.8rem,3vw,.85rem);flex:1;min-width:calc(50% - .3125rem);max-width:180px;justify-content:center;border-radius:16px}.tab-count{font-size:.75em;min-width:18px;height:18px;padding:1px 6px}.friend-card,.search-result-card,.request-card{padding:14px;overflow:hidden}.friend-actions{flex-direction:row;gap:.3rem;position:static;justify-content:flex-end;align-items:center}.search-result-card{display:flex;align-items:center;gap:10px}.blocked-user-card{padding:14px}.block-user-btn{position:static;width:20px;height:20px;padding:3px 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var(--glass-border)}.error-close{background:none;border:none;color:var(--text-light);font-size:20px;cursor:pointer;padding:0;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center}.form-group input,.form-group select,.form-group textarea{width:100%;padding:1rem 1.25rem;border:2px solid var(--card-border);border-radius:var(--radius-lg);font-size:1rem;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text-color);transition:all .3s cubic-bezier(.4,0,.2,1);box-sizing:border-box;font-weight:500}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-light),var(--shadow-lg);background:var(--card-bg-glass);transform:translateY(-1px)}.form-group small{display:block;margin-top:4px;color:var(--text-secondary);font-size:.8em}.tags-input{display:flex;gap:10px;margin-bottom:10px}.tags-input 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3rem}.form-row{grid-template-columns:1fr;gap:1rem}.stats-grid{grid-template-columns:1fr;gap:.75rem}.tags-input{flex-direction:column;gap:.75rem}.add-tag-btn{width:100%;padding:.875rem 1rem}.modal-actions{flex-direction:column;gap:.75rem}.cancel-btn,.save-btn{width:100%;padding:1rem 1.5rem}}@media (max-width: 480px){.group-settings-modal{margin:.75rem;max-height:calc(100vh - 1.5rem)}.modal-header{padding:1.25rem}.settings-form{padding:1.25rem 1.25rem 3.5rem}.form-group input,.form-group select,.form-group textarea{font-size:16px;padding:.875rem 1rem}}.study-groups{max-width:1200px;margin:0 auto;padding:2rem;background:transparent;border-radius:24px;position:relative;overflow:visible}.study-groups-header{text-align:center;margin-bottom:2.5rem;position:relative}.study-groups-header:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:300px;height:300px;background:radial-gradient(circle,var(--accent-light) 0%,transparent 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button{background:none;border:none;color:var(--text-light);font-size:20px;cursor:pointer;padding:0;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center}.study-groups-tabs{display:flex;gap:.75rem;margin-bottom:2rem;align-items:center;background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:.75rem;border-radius:18px;border:1px solid var(--card-border);flex-wrap:wrap}.tab-button{background:var(--card-bg-glass);border:2px solid var(--accent-light);padding:.875rem 1.5rem;border-radius:18px;cursor:pointer;color:var(--text-secondary);font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1);white-space:nowrap;font-size:.95rem;position:relative;overflow:hidden}.tab-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--accent-light),transparent);transition:left .5s ease}.tab-button.active{border-color:var(--accent);color:var(--text-light);background:var(--gradient-primary);transform:translateY(-2px);box-shadow:0 6px 20px var(--accent-light)}.tab-button:hover:not(.active){border-color:var(--accent);color:var(--text-primary);transform:translateY(-1px);background:var(--card-bg-glass)}.create-group-btn{background:var(--gradient-primary);color:var(--text-light);border:none;padding:.875rem 1.5rem;border-radius:18px;cursor:pointer;font-weight:600;margin-left:auto;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 15px var(--accent-light);position:relative;overflow:hidden;font-size:.95rem}.create-group-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left .5s ease}.create-group-btn:hover:before{left:100%}.create-group-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 8px 25px var(--accent-light)}.browse-filters{display:flex;gap:15px;margin-bottom:25px;align-items:center}.search-box{flex:2}.search-box input{width:100%;padding:1rem 1.25rem;border:2px solid var(--accent-light);border-radius:16px;font-size:1rem;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text-primary);transition:all .3s cubic-bezier(.4,0,.2,1);font-weight:500}.search-box input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-light),0 4px 20px var(--accent-light);background:var(--card-bg-glass);transform:translateY(-1px)}.search-box input::placeholder{color:var(--text-secondary);opacity:.7}.category-filter{flex:1}.category-filter select{width:100%;padding:1rem 1.25rem;border:2px solid var(--accent-light);border-radius:16px;background:var(--card-bg-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text-primary);cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);font-weight:500}.category-filter select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-light),0 4px 20px var(--accent-light);background:var(--card-bg-glass);transform:translateY(-1px)}.category-filter select option{background:var(--card-bg);color:var(--text-primary);padding:8px 12px}.category-filter select option:hover{background:var(--bg-secondary)}.groups-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:25px;width:100%;box-sizing:border-box;max-width:100%}.group-card{background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--accent-light);border-radius:20px;padding:1.75rem;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;box-shadow:0 8px 32px var(--shadow),0 0 0 1px var(--accent-light),inset 0 1px 0 var(--glass-border);width:100%;box-sizing:border-box;max-width:100%}.group-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);opacity:0;transition:opacity .3s ease}.group-card:hover:before{opacity:1}.group-card:hover{border-color:var(--accent);box-shadow:0 12px 40px var(--accent-light),0 0 0 1px var(--accent-light),inset 0 1px 0 var(--glass-border);transform:translateY(-4px) scale(1.01);background:var(--card-bg-glass)}.group-header{display:flex;align-items:center;gap:15px;margin-bottom:15px}.group-avatar{width:56px;height:56px;border-radius:16px;background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-weight:800;font-size:1.5em;box-shadow:0 4px 15px var(--accent-light);border:2px solid var(--card-border);position:relative;overflow:hidden}.group-avatar:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent,var(--glass-border),transparent);animation:shimmer 3s infinite}@keyframes shimmer{0%{transform:translate(-50%,-50%) rotate(0)}to{transform:translate(-50%,-50%) rotate(360deg)}}.group-basic-info{flex:1;min-width:0;overflow-wrap:break-word;word-break:break-word}.group-basic-info h3{margin:0 0 5px;color:var(--text-primary);font-size:clamp(1rem,3vw,1.2em);word-break:break-word;overflow-wrap:break-word;line-height:1.3}.group-category{color:var(--text-secondary);font-size:.9em;margin:0}.group-privacy{font-size:1.2em;display:flex;align-items:center;gap:8px}.settings-btn{background:none;border:none;font-size:1em;cursor:pointer;padding:4px;border-radius:50%;color:var(--text-secondary);transition:all .3s ease;opacity:.7}.settings-btn:hover{background:var(--background-light);color:var(--primary-color);opacity:1;transform:rotate(90deg)}.group-description{margin-bottom:15px}.group-description p{color:var(--text-secondary);margin:0;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.group-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:15px}.group-tag{background:var(--primary-color-light);color:var(--primary-color);padding:4px 8px;border-radius:12px;font-size:.8em;font-weight:500}.group-stats{display:flex;flex-direction:column;justify-content:flex-start;align-items:stretch;margin-bottom:1.5rem;padding:1.25rem;background:var(--accent-light);border-radius:16px;border:1px solid var(--card-border);position:relative;overflow:visible;width:100%;box-sizing:border-box;gap:.75rem}.group-stats:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--gradient-primary);opacity:.6}.stat{display:flex;justify-content:space-between;align-items:center;text-align:left;position:relative;z-index:5;width:100%;padding:.75rem 1rem;box-sizing:border-box;overflow:visible;white-space:normal;background:var(--card-bg);border-radius:10px;border:1px solid var(--card-border)}.stat-value{display:inline-block!important;font-size:clamp(1.1em,4vw,1.5em);font-weight:800;color:var(--text-color)!important;word-break:normal;overflow-wrap:normal;line-height:1.2;white-space:nowrap;overflow:visible;text-overflow:clip;margin-right:.5rem;position:relative;z-index:10!important;opacity:1!important;visibility:visible!important;-webkit-text-fill-color:var(--text-color)!important;background:none!important;background-image:none!important;-webkit-background-clip:initial!important;background-clip:initial!important}.stat-label{display:inline-block!important;font-size:clamp(.85em,2.5vw,1em);color:var(--text-color)!important;font-weight:700;word-break:normal;overflow-wrap:normal;line-height:1.3;white-space:nowrap;overflow:visible;text-overflow:clip;margin-left:auto;position:relative;z-index:10!important;opacity:1!important;visibility:visible!important}.group-actions{display:flex;gap:10px;width:100%;box-sizing:border-box;flex-wrap:wrap}.view-details-btn,.join-btn,.leave-btn{flex:1;padding:.875rem 1.25rem;border:none;border-radius:14px;cursor:pointer;font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1);font-size:.9rem;position:relative;overflow:hidden}.view-details-btn:before,.join-btn:before,.leave-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,var(--glass-border),transparent);transition:left .5s ease}.view-details-btn:hover:before,.join-btn:hover:before,.leave-btn:hover:before{left:100%}.view-details-btn{background:var(--gradient-primary);color:var(--text-light);box-shadow:0 4px 15px var(--accent-light)}.view-details-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 6px 20px var(--accent-light)}.join-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 6px 20px var(--accent-light)}.leave-btn{background:var(--gradient-danger);color:var(--text-light);box-shadow:var(--shadow-lg)}.leave-btn:hover{background:var(--gradient-danger);transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-xl)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--shadow);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;z-index:10002;padding:2rem;overflow-y:auto;-webkit-overflow-scrolling:touch}.modal-overlay,.group-settings-modal .modal-overlay{z-index:10002!important}.modal-content{background:var(--card-bg-glass);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);border-radius:var(--radius-2xl);width:100%;max-width:600px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow-2xl);border:1px solid var(--card-border);position:relative;animation:modalSlideUp .4s cubic-bezier(.4,0,.2,1)}.modal-content:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);border-radius:var(--radius-2xl) var(--radius-2xl) 0 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var(--card-border)}.member-info{flex:1}.member-name{display:block;color:var(--text-primary);font-weight:500}.member-role{display:block;color:var(--text-secondary);font-size:.8em;text-transform:capitalize}.member-stats{color:var(--text-secondary);font-size:.85em}.activities-list{display:grid;gap:8px}.activity-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:var(--accent-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:14px;border:1px solid var(--card-border);transition:all .3s ease}.activity-item:hover{background:var(--accent-light);transform:translate(4px);box-shadow:0 4px 15px var(--accent-light)}.clickable-activity{cursor:pointer;transition:all .3s ease}.clickable-activity:hover{background:var(--accent-light);transform:translateY(-1px);box-shadow:var(--shadow-md)}.clickable-activity:hover 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15px;font-weight:700}.player-name{font-weight:600;margin-bottom:5px;display:flex;align-items:center;justify-content:center;gap:8px;font-size:.9rem;word-break:break-word;color:var(--text-color)}.host-badge{font-size:1.2rem;flex-shrink:0}@media (max-width: 768px){.player-card{padding:15px;min-height:100px}.player-avatar{width:40px;height:40px;font-size:1.2rem;margin-bottom:10px}.player-name{font-size:.85rem}.empty-slot{font-size:.8rem}}@media (max-width: 480px){.player-card{padding:12px;min-height:90px}.player-avatar{width:35px;height:35px;font-size:1rem;margin-bottom:8px}.player-name{font-size:.8rem;gap:4px}}.player-level{color:var(--text-secondary);font-size:.9rem}.start-quiz-btn{width:100%;background:var(--gradient-primary);color:var(--text-light);border:none;padding:15px;border-radius:30px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s 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h3{font-size:1.1rem;margin-bottom:12px}.chat-messages{height:180px;padding:12px}}@media (max-width: 480px){.lobby-header{padding:15px}.room-info h2{font-size:1.3rem;margin-bottom:5px}.room-info p{font-size:.85rem}.leave-btn{padding:8px 16px;font-size:.9rem}.lobby-content{padding:12px;gap:15px}.chat-messages{height:150px;padding:10px}.start-quiz-btn{font-size:1rem;padding:12px}}.chat-message{margin-bottom:10px;padding:8px 0}.chat-message.chat{display:flex;gap:8px}.chat-author{font-weight:600;color:var(--text-color)}.chat-text{color:var(--text-secondary)}.system-message{color:var(--text-muted);font-style:italic;font-size:.9rem;background:var(--bg-secondary);padding:4px 8px;border-radius:8px}.chat-input{display:flex;gap:10px}.chat-input input{flex:1;padding:10px 15px;border:1px solid var(--card-border);border-radius:20px;font-size:.9rem;background:var(--card-bg-glass);color:var(--text-color)}.chat-input input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light);background:var(--card-bg-glass)}.chat-input input::placeholder{color:var(--text-muted)}.chat-input button{background:var(--accent);color:var(--text-light);border:none;padding:10px 20px;border-radius:20px;cursor:pointer;transition:all .2s ease}.chat-input button:hover{background:var(--accent-hover)}.quiz-playing{max-width:800px;margin:0 auto;background:#fff;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-xl)}.question-header{background:var(--gradient-primary);color:var(--text-light);padding:25px 30px;display:flex;justify-content:space-between;align-items:center}.question-progress{font-size:1.2rem;font-weight:600}.timer{display:flex;align-items:center}.timer-circle{width:60px;height:60px;border:3px solid var(--card-border);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;background:var(--card-bg-glass)}.question-content{padding:40px 30px}.question-content h2{text-align:center;margin-bottom:40px;color:var(--text-color);font-size:1.5rem;line-height:1.4}.options-grid{display:grid;grid-template-columns:1fr;gap:15px}.option-btn{display:flex;align-items:center;gap:15px;padding:20px;background:var(--card-bg-glass);border:2px solid var(--card-border);border-radius:15px;cursor:pointer;transition:all .3s ease;text-align:left;font-size:1rem}.option-btn:hover:not(:disabled){background:var(--bg-secondary);border-color:var(--card-border);transform:translateY(-2px)}.option-btn.selected{background:var(--gradient-primary);color:var(--text-light);border-color:var(--accent)}.option-btn:disabled{cursor:not-allowed;opacity:.7}.option-letter{width:30px;height:30px;background:var(--accent);color:var(--text-light);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.option-btn.selected .option-letter{background:#fff;color:var(--accent)}.option-text{flex:1;line-height:1.4}.mini-chat{background:var(--bg-secondary);border-top:1px solid var(--card-border);padding:15px 30px}.mini-chat-messages{display:flex;flex-direction:column;gap:5px;max-height:80px;overflow-y:auto}.mini-chat-message{font-size:.8rem;color:var(--text-muted)}.mini-chat-message.system{font-style:italic}.quiz-results{max-width:600px;margin:0 auto;background:#fff;border-radius:20px;padding:40px;box-shadow:var(--shadow-xl);text-align:center}.quiz-results h2{margin-bottom:30px;color:var(--text-color);font-size:2rem}.leaderboard{display:flex;flex-direction:column;gap:15px;margin-bottom:30px}.leaderboard-item{display:flex;align-items:center;gap:20px;padding:20px;background:var(--card-bg-glass);border-radius:15px;border:2px solid var(--card-border);transition:all .3s ease;position:relative}.leaderboard-item.winner{background:var(--gradient-warning);border-color:var(--warning);transform:scale(1.02)}.rank{font-size:1.5rem;font-weight:700;color:var(--text-secondary);min-width:40px}.leaderboard-item.winner .rank{color:var(--text-color)}.player-info{flex:1;display:flex;align-items:center;gap:15px}.player-details{text-align:left}.player-name{font-weight:600;font-size:1.1rem;margin-bottom:3px}.player-level{color:var(--text-muted);font-size:.9rem}.score{font-size:1.3rem;font-weight:700;color:var(--accent)}.leaderboard-item.winner .score{color:var(--text-color)}.crown{position:absolute;top:-10px;right:20px;font-size:2rem}.back-to-menu-btn{background:var(--gradient-primary);color:var(--text-light);border:none;padding:15px 40px;border-radius:30px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-md)}.back-to-menu-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}@media (max-width: 768px){.real-time-quiz{padding:10px}.menu-header h1{font-size:2.2rem}.menu-sections{grid-template-columns:1fr;gap:20px}.settings-grid{grid-template-columns:1fr}.lobby-content{grid-template-columns:1fr;gap:30px;padding:20px}.players-grid{grid-template-columns:1fr}.question-content{padding:30px 20px}.question-content h2{font-size:1.3rem}.timer-circle{width:50px;height:50px;font-size:1.2rem}.option-btn{padding:15px;font-size:.9rem}.quiz-results{padding:20px;margin:0 10px}.leaderboard-item{flex-direction:column;text-align:center;gap:10px}.player-info{flex-direction:column;gap:10px}}@media (max-width: 480px){.real-time-quiz .menu-header h1{font-size:1.8rem!important}.real-time-quiz .player-stats{padding:20px!important}.real-time-quiz .stats-grid{grid-template-columns:1fr!important;gap:15px!important}.real-time-quiz .stat{padding:20px!important}.real-time-quiz .stat-value{font-size:1.8rem!important}.real-time-quiz .menu-section{padding:20px!important}.lobby-header,.question-header{padding:20px;flex-direction:column;gap:15px;text-align:center}}.real-time-quiz .player-stats *,.real-time-quiz .stats-grid *,.real-time-quiz .stat *,.real-time-quiz .quiz-info *,.real-time-quiz .quiz-info{box-sizing:border-box!important}.real-time-quiz .stat-value,.real-time-quiz .stat .stat-value,.real-time-quiz .stats-grid .stat-value{color:var(--info)!important;background:none!important;background-image:none!important;background-color:transparent!important;-webkit-background-clip:initial!important;-webkit-text-fill-color:var(--info)!important;background-clip:initial!important;text-shadow:none!important;filter:none!important;font-weight:700!important;display:block!important;font-size:2rem!important;margin-bottom:5px!important;line-height:1.2!important}.real-time-quiz .stat{border-image:none!important;border-image-source:none!important;background-image:none!important;background-attachment:initial!important;min-height:auto!important;height:auto!important;width:auto!important;max-width:none!important;flex:none!important;flex-grow:0!important;flex-shrink:1!important;flex-basis:auto!important}.real-time-quiz .stat p,.real-time-quiz .stat span,.real-time-quiz .stat div{margin:0!important;padding:0!important}.real-time-quiz .stat:hover{animation:none!important;background:var(--card-bg-glass)!important;border-color:var(--card-border)!important;transform:translateY(-2px)!important;box-shadow:var(--shadow-md)!important;scale:none!important;rotate:none!important}.gamification-hub{max-width:1200px;margin:0 auto;padding:2rem;background:var(--card-bg);border-radius:20px;box-shadow:var(--shadow-2xl);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--card-border);position:relative;overflow:visible;height:auto!important;max-height:none!important;min-height:auto}.gamification-hub.main-content{height:auto!important;max-height:none!important;overflow-y:visible!important;overflow-x:hidden;position:relative!important}body.gamification-hub-page,html.gamification-hub-page{overflow-y:auto!important;overflow-x:hidden!important;height:auto!important;max-height:none!important}body.gamification-hub-page .main-content,html.gamification-hub-page .main-content{height:auto!important;max-height:none!important;overflow-y:visible!important;overflow-x:hidden!important;min-height:auto!important}.gamification-hub:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);border-radius:20px 20px 0 0}.hub-header{text-align:center;margin-bottom:2rem;position:relative}.hub-header:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:200px;height:200px;background:radial-gradient(circle,var(--accent-light) 0%,transparent 70%);border-radius:50%;animation:headerGlow 3s ease-in-out infinite;z-index:0}.hub-header h2{color:var(--text-primary);margin-bottom:.5rem;font-size:2.5em;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;z-index:1;animation:textShimmer 3s ease-in-out infinite}@keyframes textShimmer{0%,to{filter:brightness(1)}50%{filter:brightness(1.2)}}.hub-header p{color:var(--text-secondary);font-size:1.1em;position:relative;z-index:1}.error-message{background:var(--gamification-error);color:var(--text-light);padding:1rem 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slideIn{0%{opacity:0;transform:translateY(-1rem)}to{opacity:1;transform:translateY(0)}}.hub-tabs{display:flex;gap:.75rem;margin-bottom:2rem;background:var(--hover-bg);padding:.75rem;border-radius:15px;flex-wrap:wrap;justify-content:center;align-items:center}.tab-button{padding:.875rem 1.75rem;border:none;background:transparent;color:var(--text-secondary);border-radius:12px;cursor:pointer;transition:all .3s ease;font-weight:600;font-size:.95rem;position:relative;overflow:hidden;white-space:nowrap;display:flex;align-items:center;justify-content:center;min-height:44px;box-sizing:border-box}.tab-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--shimmer);transition:left .5s ease}.tab-button:hover:before{left:100%}.tab-button:hover:not(.active){background:var(--hover-bg);color:var(--text-primary);transform:translateY(-2px)}.tab-button.active{background:var(--gradient-primary);color:var(--text-light);transform:translateY(-2px);box-shadow:0 8px 25px var(--accent-light)}.admin-create-btn{padding:.875rem 1.75rem;border:none;background:var(--gamification-accent);color:var(--text-light);border-radius:12px;cursor:pointer;transition:all .3s ease;font-weight:600;font-size:.95rem;margin:0;white-space:nowrap;display:flex;align-items:center;justify-content:center;min-height:44px;box-sizing:border-box;box-shadow:0 4px 15px var(--accent-light)}.admin-create-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--accent-light)}.admin-sample-btn{padding:.875rem 1.75rem;border:none;background:var(--gamification-warning);color:var(--text-light);border-radius:12px;cursor:pointer;transition:all .3s ease;font-weight:600;font-size:.95rem;margin:0;white-space:nowrap;display:flex;align-items:center;justify-content:center;min-height:44px;box-sizing:border-box;box-shadow:0 4px 15px var(--warning-light)}.admin-sample-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--warning-light)}.tab-content{position:relative;min-height:auto;height:auto!important;max-height:none!important;overflow:visible!important}.loading-state{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:300px;text-align:center}.loading-state .spinner{width:60px;height:60px;border:4px solid var(--card-border);border-top:4px solid var(--accent-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}.loading-state p{color:var(--text-secondary);margin:0}.empty-state,.no-challenge-card{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 2rem;text-align:center;background:var(--gamification-glass);border-radius:15px;border:1px solid var(--gamification-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:floatIn .6s ease}@keyframes floatIn{0%{opacity:0;transform:translateY(2rem)}to{opacity:1;transform:translateY(0)}}.empty-icon,.no-challenge-icon{font-size:4rem;margin-bottom:1rem;animation:bounce 2s ease-in-out infinite}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-10px)}60%{transform:translateY(-5px)}}.empty-state h3,.no-challenge-card h3{color:var(--text-primary);margin-bottom:.5rem;font-size:1.5rem}.empty-state p,.no-challenge-card p{color:var(--text-secondary);margin:0}.admin-actions{margin-top:1.5rem;display:flex;gap:1rem;flex-wrap:wrap;justify-content:center}.create-sample-btn,.cleanup-btn{padding:.75rem 1.5rem;border:none;border-radius:10px;cursor:pointer;transition:all .3s ease;font-weight:500;color:var(--text-light)}.create-sample-btn{background:var(--gamification-success)}.create-sample-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--success-light)}.cleanup-btn{background:var(--gamification-error)}.cleanup-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--danger-light)}.challenges-container{display:flex;flex-direction:column;gap:1.5rem;height:auto!important;max-height:none!important;min-height:auto!important;overflow-y:visible!important;overflow-x:hidden;padding-right:0;padding-bottom:1rem;position:relative}.daily-challenge-card{background:var(--gamification-glass);border-radius:20px;padding:2rem;border:1px solid var(--gamification-border);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);transition:all .4s ease;position:relative;overflow:hidden;animation:cardSlideIn .6s ease;contain:layout style;will-change:transform;flex-shrink:0;min-height:fit-content}@keyframes cardSlideIn{0%{opacity:0;transform:translateY(2rem) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.daily-challenge-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--challenge-gradient);border-radius:20px 20px 0 0}.daily-challenge-card:hover{transform:translateY(-5px) scale(1.02);box-shadow:var(--gamification-shadow);border-color:var(--accent-light)}.challenge-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}.challenge-icon{font-size:3rem;width:80px;height:80px;background:var(--challenge-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;animation:iconFloat 3s ease-in-out infinite}@keyframes iconFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.challenge-info{flex:1}.challenge-info h3{margin:0 0 .5rem;color:var(--text-primary);font-size:1.5rem;font-weight:600}.challenge-type{color:var(--text-secondary);font-size:.9rem;text-transform:uppercase;font-weight:500;margin:0}.challenge-time{color:var(--accent-color);font-weight:500;font-size:.9rem}.challenge-description{margin-bottom:1.5rem}.challenge-description p{color:var(--text-secondary);margin:0;line-height:1.6}.challenge-progress{margin-bottom:1.5rem}.progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.progress-header span{color:var(--text-primary);font-weight:500}.progress-bar{height:8px;background:var(--hover-bg);border-radius:10px;overflow:hidden;position:relative}.progress-fill{height:100%;background:var(--gamification-success);border-radius:10px;transition:width .8s ease;position:relative}.progress-fill:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:var(--shimmer);animation:shimmer 2s infinite}.challenge-rewards{margin-bottom:1.5rem}.challenge-rewards h4{color:var(--text-primary);margin-bottom:.75rem;font-size:1.1rem}.rewards-list{display:flex;gap:1rem;flex-wrap:wrap}.reward-item{display:flex;align-items:center;gap:.5rem;background:var(--hover-bg);padding:.5rem 1rem;border-radius:25px;transition:all .3s ease}.reward-item:hover{background:var(--gamification-accent);color:var(--text-light);transform:translateY(-2px)}.reward-icon{font-size:1.2rem}.reward-text{font-weight:500;font-size:.9rem}.challenge-actions{display:flex;gap:1rem;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap;justify-content:flex-start}.completed-section{flex:1}.completed-btn{background:var(--gamification-success);color:var(--text-light);border:none;padding:1rem 2rem;border-radius:12px;font-weight:600;cursor:default;position:relative;overflow:hidden;width:100%}.completed-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--shimmer);animation:completedShimmer 3s infinite}@keyframes completedShimmer{0%{left:-100%}50%{left:100%}to{left:100%}}.challenge-status{font-size:.85rem;padding:.4rem .8rem;border-radius:20px;font-weight:600;margin-top:.5rem;display:inline-flex;align-items:center;gap:.3rem;text-transform:uppercase;letter-spacing:.5px;box-shadow:var(--shadow-md)}.status-available{background:var(--gradient-success);color:var(--text-light);animation:availablePulse 2s infinite}.status-reset{background:var(--gradient-warning);color:var(--text-light);animation:resetGlow 1.5s infinite alternate}.status-progress{background:var(--gradient-primary);color:var(--text-light);animation:progressPulse 1.5s infinite}.status-completed{background:var(--gradient-primary);color:var(--text-light)}@keyframes availablePulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.9}}@keyframes resetGlow{0%{box-shadow:0 2px 8px var(--warning-light)}to{box-shadow:0 4px 20px var(--warning-light)}}@keyframes progressPulse{0%,to{opacity:1}50%{opacity:.8}}.reset-timer{margin-top:.5rem;text-align:center}.reset-timer small{color:var(--text-secondary);font-size:.8rem;padding:.3rem .6rem;background:var(--card-bg-glass);border-radius:12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.reset-continue-section{text-align:center;padding:1rem;background:var(--warning-light);border-radius:12px;border:1px solid var(--warning-light);margin-bottom:1rem}.reset-info{margin-bottom:1rem}.reset-message{color:var(--warning-color);font-weight:600;font-size:.9rem;display:flex;align-items:center;justify-content:center;gap:.5rem}.join-challenge-btn{padding:.875rem 2rem;border:none;border-radius:12px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s ease;white-space:nowrap;display:flex;align-items:center;justify-content:center;min-height:44px;box-sizing:border-box;background:var(--gradient-primary);color:var(--text-light);box-shadow:0 4px 15px var(--accent-light)}.join-challenge-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--accent-light)}.join-challenge-btn.reset-continue{background:var(--gradient-warning);box-shadow:0 4px 15px var(--warning-light);transform:none;animation:resetButtonGlow 2s infinite alternate}@keyframes resetButtonGlow{0%{box-shadow:0 4px 15px var(--warning-light)}to{box-shadow:0 6px 25px var(--warning-light)}}.not-available{text-align:center;padding:1.5rem;background:var(--card-bg-glass);border-radius:12px;border:1px dashed var(--card-border)}.not-available-message{color:var(--text-secondary);font-style:italic}.reset-timer-info{margin-top:.3rem;font-size:.75rem;color:var(--text-secondary);font-style:italic}.reset-timer-info small{display:inline-block;margin-right:.5rem;padding:.2rem .5rem;background:var(--accent-light);border-radius:8px;border:1px solid var(--accent-light)}.completed-notice{margin-top:1.5rem;margin-bottom:1rem;padding:1.5rem 1.25rem;background:var(--success-light);border-radius:12px;border:1px solid var(--success-light)}.completed-notice p{margin:0;color:var(--success-color);font-size:1rem;text-align:center;line-height:1.6;padding:0 .5rem}.completed-challenge-card{border:2px solid var(--success-light);background:var(--success-light)}.completed-challenge-card:hover{border-color:var(--success);box-shadow:0 8px 32px var(--success-light)}.completion-stats{margin:1.5rem 0;padding:1rem;background:var(--card-bg-glass);border-radius:12px;border:1px solid var(--card-border)}.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1rem;margin-bottom:1rem}.stat-item{display:flex;flex-direction:column;align-items:center;text-align:center;padding:.75rem;background:var(--card-bg-glass);border-radius:8px;border:1px solid var(--card-border)}.stat-label{font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-weight:500;margin-bottom:.3rem}.stat-value{font-size:1.1rem;font-weight:700;color:var(--text-primary);background:var(--gamification-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@media (max-width: 768px){.stat-row{grid-template-columns:repeat(2,1fr);gap:.75rem}.stat-item{padding:.5rem}.stat-value{font-size:1rem}}.completed-scores{margin-top:1rem}.scores-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.75rem;margin-bottom:1rem}.score-item{background:var(--hover-bg);padding:.75rem;border-radius:10px;text-align:center;transition:all .3s ease}.score-item:hover{background:var(--gamification-accent);color:var(--text-light);transform:translateY(-2px)}.quiz-number{display:block;font-size:.8rem;color:var(--text-secondary);margin-bottom:.25rem}.score-percentage{display:block;font-size:1.2rem;font-weight:600;color:var(--text-primary)}.score-points{display:block;font-size:.9rem;color:var(--text-secondary)}.total-score{text-align:center;padding:1rem;background:var(--gamification-success);color:var(--text-light);border-radius:12px;font-weight:600}.quiz-progress-actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.quiz-progress-info{flex:1}.quiz-count{color:var(--text-primary);font-weight:500}.join-btn,.continue-btn{padding:.875rem 2rem;border:none;border-radius:12px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden;white-space:nowrap;display:flex;align-items:center;justify-content:center;min-height:44px;box-sizing:border-box}.join-btn{background:var(--gradient-primary);color:var(--text-light);box-shadow:0 4px 15px var(--accent-light)}.join-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--accent-light)}.continue-btn{background:var(--gamification-accent);color:var(--text-light);box-shadow:0 4px 15px var(--accent-light)}.continue-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px var(--accent-light)}.continue-btn:disabled{background:var(--hover-bg);color:var(--text-secondary);cursor:not-allowed;box-shadow:none;transform:none}.delete-btn{background:var(--gamification-error);color:var(--text-light);border:none;padding:.75rem 1.5rem;border-radius:12px;cursor:pointer;transition:all .3s ease;font-size:.95rem;font-weight:600;white-space:nowrap;display:flex;align-items:center;justify-content:center;min-height:44px;box-sizing:border-box;box-shadow:0 4px 15px var(--danger-light)}.delete-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--danger-light)}.challenge-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1rem;padding-top:1rem;border-top:1px solid var(--gamification-border)}.stat{text-align:center;padding:.75rem;background:var(--hover-bg);border-radius:10px;transition:all .3s ease}.stat:hover{background:var(--gamification-accent);color:var(--text-light);transform:translateY(-2px)}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--accent-color);margin-bottom:.25rem}.stat-label{display:block;font-size:.8rem;color:var(--text-secondary);text-transform:uppercase;font-weight:500}.tournaments-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:1.5rem;height:auto!important;max-height:none!important;min-height:auto!important;overflow-y:visible!important;overflow-x:hidden;padding-right:0}.tournament-card{background:var(--gamification-glass);border-radius:20px;padding:1.5rem;border:1px solid var(--gamification-border);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);transition:all .4s ease;position:relative;overflow:hidden;animation:cardSlideIn .6s ease}.tournament-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--tournament-gradient);border-radius:20px 20px 0 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.75rem;border-radius:12px;font-size:.8rem;font-weight:500;text-transform:uppercase}.status-completed{background:var(--gamification-success);color:var(--text-light)}.status-failed{background:var(--gamification-error);color:var(--text-light)}.rank-badge{background:var(--gamification-warning);color:var(--text-light)}.rank-participated{background:var(--hover-bg);color:var(--text-secondary)}.history-details{margin-top:.75rem;padding-top:.75rem;border-top:1px solid var(--gamification-border)}.tournament-dates{margin-top:.75rem}.date-info{color:var(--text-secondary);font-size:.85rem}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--shadow);display:flex;justify-content:center;align-items:center;z-index:1000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:fadeIn .3s ease;padding:1rem;box-sizing:border-box;overflow-y:auto;-webkit-overflow-scrolling:touch}@keyframes 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var(--danger-light);color:var(--danger-light);font-size:1.8rem;cursor:pointer;padding:0;width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;transition:all .3s ease;font-weight:300;line-height:1}.close-btn:hover{background:var(--danger-light);color:var(--text-light);transform:scale(1.1) rotate(90deg);box-shadow:0 4px 15px var(--danger-light)}.create-form{display:flex;flex-direction:column;gap:2rem;padding:2rem 2.5rem;overflow-y:auto;flex:1;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}.form-group{display:flex;flex-direction:column;gap:.75rem}.form-group label{color:var(--text-primary);font-weight:600;font-size:.95rem;display:flex;align-items:center;gap:.5rem;letter-spacing:.3px}.form-group input,.form-group select,.form-group textarea{padding:1rem 1.25rem;border:2px solid var(--accent-light);border-radius:12px;background:var(--card-bg-glass);color:var(--text-primary);font-size:1rem;transition:all .3s 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1.25rem;font-size:1.2rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:flex;align-items:center;gap:.5rem}.modal-actions{display:flex;gap:1rem;justify-content:flex-end;padding:1.5rem 2.5rem;background:var(--accent-light);border-top:1px solid var(--accent-light);margin-top:auto}.cancel-btn,.create-btn{padding:1rem 2.5rem;border:none;border-radius:12px;font-weight:700;font-size:1rem;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);text-transform:uppercase;letter-spacing:.5px;min-width:140px;position:relative;overflow:hidden}.cancel-btn{background:var(--card-bg-glass);color:var(--text-secondary);border:2px solid var(--card-border)}.cancel-btn:hover{background:var(--gradient-danger);color:var(--text-light);border-color:var(--danger);transform:translateY(-2px);box-shadow:0 8px 25px var(--danger-light)}.create-btn{background:var(--gradient-primary);color:var(--text-light);border:2px solid var(--accent-light);box-shadow:0 4px 15px var(--accent-light)}.create-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 35px var(--accent-light);border-color:var(--accent)}.create-btn:disabled{background:var(--card-bg-glass);color:var(--text-muted);cursor:not-allowed;border-color:var(--card-border);box-shadow:none;transform:none}.quiz-selection{margin:0}.quiz-selection h4{color:var(--text-primary);margin-bottom:1.25rem;font-size:1.2rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:flex;align-items:center;gap:.5rem}.selected-count{color:var(--success);font-weight:600;margin-bottom:1rem;background:var(--success-light);padding:.75rem 1.25rem;border-radius:12px;display:inline-flex;align-items:center;gap:.5rem;border:1px solid var(--success);box-shadow:var(--shadow-md)}.scroll-hint{color:var(--warning);font-size:.9rem;margin-bottom:1.25rem;padding:1rem 1.25rem;background:var(--warning-light);border-left:4px solid var(--warning);border-radius:0 12px 12px 0;font-style:italic;border:1px solid var(--warning);box-shadow:var(--shadow-md)}.quiz-list{max-height:350px;overflow-y:auto;border:2px solid var(--accent-light);border-radius:16px;background:var(--card-bg-glass);padding:1rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);-webkit-overflow-scrolling:touch;scroll-behavior:smooth;overscroll-behavior:contain;scrollbar-width:thin}.quiz-list::-webkit-scrollbar{width:8px}.quiz-list::-webkit-scrollbar-track{background:var(--card-bg-glass);border-radius:10px}.quiz-list::-webkit-scrollbar-thumb{background:var(--gradient-primary);border-radius:10px;border:2px solid var(--card-border)}.quiz-list::-webkit-scrollbar-thumb:hover{background:var(--gamification-secondary)}.quiz-checkbox{display:flex;align-items:center;gap:1.25rem;padding:1.25rem;border-radius:12px;cursor:pointer;transition:all .3s 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var(--accent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.prize-row{display:flex;align-items:center;gap:1rem;padding:1rem;background:var(--card-bg-glass);border-radius:12px;margin-bottom:.75rem;border:1px solid var(--accent);transition:all .3s ease}.prize-row:hover{background:var(--accent-light);border-color:var(--accent);transform:translate(4px)}.prize-position{font-weight:700;font-size:1.1rem;color:var(--text-primary);min-width:140px;flex-shrink:0}.prize-inputs{display:flex;gap:.75rem;flex:1;flex-wrap:wrap}.prize-inputs input{flex:1;min-width:120px}.game-quiz-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--bg-dark);display:flex;justify-content:center;align-items:center;z-index:1001;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);animation:fadeIn .3s 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100%);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:relative}.quiz-info{flex:1;min-width:0}.quiz-info h3{color:var(--text-primary);font-size:clamp(1.4rem,3vw,1.8rem);font-weight:800;margin:0 0 .75rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.3;word-wrap:break-word;letter-spacing:-.02em;filter:drop-shadow(0 0 20px var(--accent-light))}.quiz-type{color:var(--text-color);font-size:1rem;margin:0;font-weight:600;word-wrap:break-word;display:flex;align-items:center;gap:.5rem}.quiz-stats{display:flex;flex-direction:column;align-items:flex-end;gap:.75rem;flex-shrink:0;align-self:flex-start;margin-top:0}.timer{background:var(--gradient-danger);color:var(--text-light);padding:.75rem 1.5rem;border-radius:16px;font-weight:700;font-size:1rem;box-shadow:var(--shadow-xl),inset 0 1px 0 var(--glass-border);animation:pulse 2s infinite;border:2px solid var(--card-border);min-width:110px;text-align:center;white-space:nowrap;display:flex;align-items:center;justify-content:center;gap:.5rem}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.progress{background:var(--gamification-accent);color:var(--text-light);padding:.75rem 1.5rem;border-radius:16px;font-size:.95rem;font-weight:600;box-shadow:var(--shadow-xl),inset 0 1px 0 var(--glass-border);border:2px solid var(--card-border);min-width:150px;text-align:center;white-space:nowrap;display:flex;align-items:center;justify-content:center}.progress-bar{width:100%;height:8px;background:var(--card-bg-glass);border-radius:0;margin:0;overflow:hidden;box-shadow:inset 0 2px 4px var(--shadow-md);position:relative}.progress-fill{height:100%;background:var(--gradient-primary);border-radius:10px;transition:width .6s 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h2{font-size:2.5rem;font-weight:800;margin-bottom:var(--space-md);text-shadow:var(--shadow);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.spaced-repetition-header p{font-size:1.1rem;opacity:.9;margin:0}.spaced-repetition-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-3xl);background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-2xl);color:var(--text-color)}.loading-spinner{width:50px;height:50px;border:4px solid var(--card-border);border-top:4px solid var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:var(--space-lg)}.loading-text{font-size:1.1rem;font-weight:600;color:var(--text-color)}.spaced-repetition-empty{text-align:center;padding:var(--space-3xl);background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-2xl);color:var(--text-color)}.spaced-repetition-empty h2{font-size:2rem;font-weight:700;margin-bottom:var(--space-md);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.spaced-repetition-empty p{font-size:1.1rem;color:var(--text-secondary);margin:0}.review-card{background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-2xl);padding:var(--space-2xl);margin-bottom:var(--space-lg);position:relative;overflow:hidden;transition:all var(--transition-normal)}.review-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);border-radius:var(--radius-2xl) var(--radius-2xl) 0 0}.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3xl)}.quiz-info{margin-bottom:var(--space-xl);padding-bottom:var(--space-lg);border-bottom:1px solid var(--border-color)}.quiz-title{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--space-sm);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.quiz-category{display:inline-block;background:var(--gradient-primary);color:var(--text-light);padding:.25rem .75rem;border-radius:var(--radius-full);font-size:.85rem;font-weight:600}.question-section{margin-bottom:var(--space-xl)}.question-text{font-size:1.2rem;font-weight:600;color:var(--text-primary);line-height:1.6;margin-bottom:var(--space-lg);padding:var(--space-lg);background:var(--accent-light);border-radius:var(--radius-lg);border-left:4px solid var(--accent)}.answer-section{margin-bottom:var(--space-xl);padding:var(--space-lg);background:var(--success-light);border-radius:var(--radius-lg);border-left:4px solid var(--success)}.answer-label{font-weight:700;color:var(--text-primary);margin-bottom:var(--space-lg);font-size:1.1rem;text-align:center}.options-grid{display:grid;gap:var(--space-md);grid-template-columns:1fr}.option-item{display:flex;align-items:center;padding:var(--space-md);border-radius:var(--radius-lg);border:2px solid transparent;transition:all var(--transition-normal);position:relative;background:var(--card-bg-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.option-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.option-letter{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem;margin-right:var(--space-md);flex-shrink:0;background:var(--card-bg-glass);color:var(--text-primary);border:2px solid var(--card-border)}.option-text{flex:1;font-size:1rem;color:var(--text-primary);line-height:1.5;font-weight:500}.correct-badge{position:absolute;top:-8px;right:-8px;width:24px;height:24px;background:var(--gradient-success);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-light);font-weight:700;font-size:.8rem;box-shadow:0 2px 8px var(--success-light);animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.correct-option{background:var(--success-light);border-color:var(--success);box-shadow:0 4px 15px var(--success-light)}.correct-option .option-letter{background:var(--gradient-success);color:var(--text-light);border-color:var(--success-dark);box-shadow:0 2px 8px var(--success-light)}.correct-option .option-text{color:var(--success);font-weight:600}.incorrect-option{background:var(--card-bg-glass);border-color:var(--card-border)}.incorrect-option .option-letter{background:var(--card-bg-glass);color:var(--text-secondary);border-color:var(--card-border)}.incorrect-option .option-text{color:var(--text-secondary)}.button-group{display:flex;gap:var(--space-md);flex-wrap:wrap;justify-content:center}.action-button{padding:var(--space-md) var(--space-xl);border:none;border-radius:var(--radius-lg);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-normal);position:relative;overflow:hidden;min-width:120px}.action-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--shimmer-gradient);transition:left .5s}.action-button:hover:before{left:100%}.show-answer-btn{background:var(--gradient-primary);color:var(--text-light);box-shadow:0 4px 15px var(--accent-light)}.show-answer-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px var(--accent-light)}.quality-btn{color:var(--text-light);font-weight:700;text-transform:uppercase;letter-spacing:.5px}.forgot-btn{background:var(--gradient-danger);box-shadow:0 4px 15px var(--danger-light)}.forgot-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px var(--danger-light)}.hard-btn{background:var(--gradient-warning);box-shadow:0 4px 15px var(--warning-light)}.hard-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px var(--warning-light)}.easy-btn{background:var(--gradient-success);box-shadow:0 4px 15px var(--success-light)}.easy-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px var(--success-light)}.error-state{text-align:center;padding:var(--space-3xl);background:var(--card-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-2xl);color:var(--text-color)}.error-state h2{font-size:2rem;font-weight:700;margin-bottom:var(--space-md);color:var(--danger)}.error-state p{font-size:1.1rem;color:var(--text-secondary);margin:0}.progress-indicator{display:flex;justify-content:center;align-items:center;margin-bottom:var(--space-lg);padding:var(--space-md);background:var(--card-bg-glass);border-radius:var(--radius-lg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.progress-text{color:var(--text-light);font-weight:600;font-size:.9rem}.quiz-progress-text{color:var(--accent2);font-weight:500;font-size:.8rem;margin-left:var(--space-sm);padding:.25rem .5rem;background:var(--accent-light);border-radius:var(--radius-sm);border:1px solid var(--accent-light)}@media (max-width: 768px){.spaced-repetition{padding:var(--space-lg)}.spaced-repetition-header h2{font-size:2rem}.review-card{padding:var(--space-lg)}.button-group{flex-direction:column;align-items:center}.action-button{width:100%;max-width:200px}.question-text{font-size:1.1rem}.option-item{padding:var(--space-sm)}.option-letter{width:35px;height:35px;font-size:.9rem;margin-right:var(--space-sm)}.option-text{font-size:.95rem}.correct-badge{width:20px;height:20px;font-size:.7rem;top:-6px;right:-6px}}@media (max-width: 480px){.spaced-repetition{padding:var(--space-md)}.spaced-repetition-header h2{font-size:1.8rem}.review-card{padding:var(--space-md)}.quiz-title{font-size:1.3rem}.question-text{font-size:1rem}.option-item{padding:var(--space-xs)}.option-letter{width:30px;height:30px;font-size:.8rem;margin-right:var(--space-xs)}.option-text{font-size:.9rem}.correct-badge{width:18px;height:18px;font-size:.6rem;top:-5px;right:-5px}.answer-label{font-size:1rem;margin-bottom:var(--space-md)}}.advanced-analytics-container{min-height:100vh;background:var(--bg-dark);color:var(--text-color);font-family:var(--font-sans);padding:var(--space-lg);overflow-x:hidden}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center}.loading-spinner{width:48px;height:48px;border:4px solid var(--border-color);border-top:4px solid var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:var(--space-md)}.loading-text{color:var(--text-muted);font-size:1.1rem;font-weight:500}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-container,.no-data-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center;padding:var(--space-xl)}.error-icon,.no-data-icon{font-size:4rem;margin-bottom:var(--space-lg);opacity:.8}.error-title,.no-data-title{font-size:1.5rem;font-weight:600;color:var(--text-light);margin-bottom:var(--space-sm)}.error-message,.no-data-message{color:var(--text-muted);font-size:1rem;margin-bottom:var(--space-lg);max-width:400px;line-height:1.6}.retry-button{background:var(--gradient-primary);color:var(--text-light);border:none;padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-lg);font-weight:600;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-md)}.retry-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.analytics-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-xl);padding:var(--space-lg);background:var(--card-bg);border-radius:var(--radius-xl);border:1px solid var(--card-border);position:relative;overflow:visible}.header-content{flex:1;position:relative;z-index:5}.analytics-title{font-size:2.5rem;font-weight:700;color:var(--text-light);margin-bottom:var(--space-sm);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.analytics-subtitle{color:var(--text-muted);font-size:1.1rem;line-height:1.6;max-width:500px}.header-stats{display:flex;gap:var(--space-md);flex-wrap:wrap;position:relative;z-index:5}.stat-card{background:var(--card-bg)!important;border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:var(--space-md);text-align:center;min-width:120px;position:relative;overflow:visible;z-index:1}.stat-value{font-size:1.8rem;font-weight:700;color:var(--text-color)!important;margin-bottom:var(--space-xs);position:relative;z-index:10!important;display:block!important;opacity:1!important;visibility:visible!important;-webkit-text-fill-color:var(--text-color)!important;background:none!important;background-image:none!important;-webkit-background-clip:initial!important;background-clip:initial!important}.stat-label{font-size:.9rem;color:var(--text-color)!important;font-weight:600;position:relative;z-index:10!important;display:block!important;opacity:1!important;visibility:visible!important}.tab-navigation{display:flex;gap:var(--space-sm);margin-bottom:var(--space-xl);background:var(--card-bg);padding:var(--space-sm);border-radius:var(--radius-xl);border:1px solid var(--card-border);overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}.tab-navigation::-webkit-scrollbar{display:none}.tab-button{background:transparent;border:none;color:var(--text-muted);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-lg);font-weight:600;cursor:pointer;transition:all var(--transition-normal);white-space:nowrap;font-size:.95rem;display:flex;align-items:center;gap:var(--space-xs)}.tab-button:hover{background:var(--accent-light);color:var(--accent);transform:translateY(-1px)}.tab-button.active{background:var(--gradient-primary);color:var(--text-light);box-shadow:var(--shadow-md)}.tab-content{min-height:60vh}.overview-grid{display:grid;grid-template-columns:1fr 2fr;gap:var(--space-xl);margin-bottom:var(--space-xl)}.overview-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-lg)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg)}.card-title{font-size:1.3rem;font-weight:600;color:var(--text-light)}.card-icon{font-size:1.5rem;opacity:.8}.performance-metrics{display:flex;flex-direction:column;gap:var(--space-lg)}.metric-item{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md);background:var(--glass-bg);border-radius:var(--radius-lg);border:1px solid var(--glass-border)}.metric-label{color:var(--text-muted);font-weight:500;font-size:.95rem}.metric-value{font-size:1.2rem;font-weight:700;color:var(--accent)}.charts-section{display:flex;flex-direction:column;gap:var(--space-lg)}.chart-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-lg)}.chart-title{font-size:1.2rem;font-weight:600;color:var(--text-light);margin-bottom:var(--space-lg);text-align:center}.chart-container{height:300px;position:relative}.cognitive-section,.learning-section,.insights-section{margin-bottom:var(--space-xl)}.section-header{text-align:center;margin-bottom:var(--space-xl)}.section-title{font-size:2rem;font-weight:700;color:var(--text-light);margin-bottom:var(--space-sm);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-subtitle{color:var(--text-muted);font-size:1.1rem;max-width:600px;margin:0 auto;line-height:1.6}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-lg)}.metric-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-lg);transition:all var(--transition-normal)}.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl);border-color:var(--accent)}.metric-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:1px solid var(--border-color)}.metric-card-title{font-size:1.1rem;font-weight:600;color:var(--text-light)}.metric-card-date{font-size:.85rem;color:var(--text-muted)}.metric-card-content{display:flex;flex-direction:column;gap:var(--space-md)}.metric-row{display:flex;justify-content:space-between;align-items:center}.performance-indicator{margin-top:var(--space-md);padding-top:var(--space-md);border-top:1px solid var(--border-color);text-align:center}.indicator-label{font-size:.9rem;color:var(--text-muted);margin-bottom:var(--space-xs)}.indicator-value{font-size:1rem;font-weight:600}.learning-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-xl)}.learning-chart-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-lg)}.learning-metrics{display:flex;flex-direction:column;gap:var(--space-lg)}.learning-metric-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-lg);transition:all var(--transition-normal)}.learning-metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.learning-metric-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:1px solid var(--border-color)}.learning-metric-title{font-size:1.1rem;font-weight:600;color:var(--text-light)}.learning-metric-date{font-size:.85rem;color:var(--text-muted)}.learning-metric-content{display:flex;flex-direction:column;gap:var(--space-lg)}.learning-metric-row{display:flex;flex-direction:column;gap:var(--space-sm)}.learning-metric-label{font-size:.9rem;color:var(--text-muted);font-weight:500}.learning-metric-progress{position:relative;background:var(--glass-bg);border-radius:var(--radius-full);height:8px;overflow:hidden}.progress-bar{height:100%;border-radius:var(--radius-full);transition:width var(--transition-slow);position:relative}.progress-value{position:absolute;right:var(--space-sm);top:50%;transform:translateY(-50%);font-size:.8rem;font-weight:600;color:var(--text-light);text-shadow:var(--shadow)}.insights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-lg)}.insight-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-lg);transition:all var(--transition-normal);text-align:center}.insight-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl);border-color:var(--accent)}.insight-icon{font-size:2.5rem;margin-bottom:var(--space-md);opacity:.9}.insight-title{font-size:1.2rem;font-weight:600;color:var(--text-light);margin-bottom:var(--space-sm)}.insight-description{color:var(--text-muted);line-height:1.6;font-size:.95rem}@media (max-width: 1200px){.overview-grid,.learning-grid{grid-template-columns:1fr}}@media (max-width: 768px){.advanced-analytics-container{padding:var(--space-md)}.analytics-header{flex-direction:column;gap:var(--space-lg);text-align:center}.analytics-title{font-size:2rem}.header-stats{justify-content:center}.tab-navigation{flex-wrap:wrap;justify-content:center}.tab-button{font-size:.9rem;padding:var(--space-sm) var(--space-md)}.metrics-grid,.insights-grid{grid-template-columns:1fr}.chart-container{height:250px}}@media (max-width: 480px){.advanced-analytics-container{padding:var(--space-sm)}.analytics-title{font-size:1.8rem}.analytics-subtitle{font-size:1rem}.stat-card{min-width:100px;padding:var(--space-sm)}.stat-value{font-size:1.5rem;color:var(--text-color)!important;opacity:1!important;visibility:visible!important}.metric-card,.learning-metric-card,.insight-card{padding:var(--space-md)}.chart-container{height:200px}}@media (prefers-color-scheme: dark){.advanced-analytics-container{background:var(--bg-dark)}}.advanced-analytics-container *{transition:all var(--transition-normal)}.advanced-analytics-container::-webkit-scrollbar{width:8px}.advanced-analytics-container::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:var(--radius-full)}.advanced-analytics-container::-webkit-scrollbar-thumb{background:var(--accent);border-radius:var(--radius-full)}.advanced-analytics-container::-webkit-scrollbar-thumb:hover{background:var(--accent-hover)}