@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 cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 1);--transition-slow: .5s cubic-bezier(.4, 0, .2, 1);--transition-bounce: .6s cubic-bezier(.68, -.55, .265, 1.55);--bg-dark: #0a0e1a;--bg-secondary: #141b2e;--bg-tertiary: #1a2332;--card-bg: rgba(26, 35, 50, .85);--card-bg-glass: rgba(255, 255, 255, .03);--card-border: rgba(255, 255, 255, .08);--text-color: #f1f5f9;--text-light: #ffffff;--text-muted: #94a3b8;--text-disabled: #64748b;--accent: #6366f1;--accent2: #8b5cf6;--accent-light: rgba(99, 102, 241, .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-light: rgba(239, 68, 68, .15);--info: #06b6d4;--info-light: rgba(6, 182, 212, .15);--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, #667eea 0%, #764ba2 100%);--gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);--gradient-danger: linear-gradient(135deg, #fc466b 0%, #3f5efb 100%);--gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, .1) 0%, rgba(255, 255, 255, .05) 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)}: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: var(--danger);--color-logout-hover-bg: #dc2626;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .3);--color-toggle-bg: rgba(15, 15, 15, .9);--color-toggle-hover-bg: rgba(59, 130, 246, .2);--color-toggle-text: #ffffff;--color-toggle-shadow: rgba(0, 0, 0, .3);--color-close-btn: var(--text-light);--color-close-btn-hover: #f87171}:root[data-theme=Light]{--bg-dark: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--card-bg: rgba(255, 255, 255, .95);--card-bg-glass: rgba(248, 250, 252, .8);--card-border: rgba(203, 213, 225, .3);--text-color: #1e293b;--text-light: #0f172a;--text-muted: #64748b;--text-disabled: #94a3b8;--accent: #2563eb;--accent2: #7c3aed;--accent-light: rgba(37, 99, 235, .1);--accent-hover: #1d4ed8;--success: #059669;--success-light: rgba(5, 150, 105, .1);--warning: #d97706;--warning-light: rgba(217, 119, 6, .1);--danger: #dc2626;--danger-light: rgba(220, 38, 38, .1);--info: #0284c7;--info-light: rgba(2, 132, 199, .1);--border-color: rgba(203, 213, 225, .4);--border-focus: var(--accent);--glass-bg: rgba(255, 255, 255, .8);--glass-border: rgba(203, 213, 225, .2);--glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1);--gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);--gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);--gradient-success: linear-gradient(135deg, #059669 0%, #10b981 100%);--gradient-danger: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);--gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, .9) 0%, rgba(248, 250, 252, .8) 100%);--color-sidebar-gradient-start: #ffffff;--color-sidebar-gradient-end: #f8fafc;--color-text-primary: var(--text-color);--color-title: var(--text-light);--color-accent: var(--accent);--color-link-hover-bg: rgba(37, 99, 235, .08);--color-link-hover-shadow: 0 2px 4px rgba(37, 99, 235, .1);--color-scrollbar-thumb: var(--accent);--color-scrollbar-track: #f1f5f9;--color-sidebar-shadow: 0 4px 6px -1px rgba(0, 0, 0, .05);--color-logout-bg: var(--danger);--color-logout-hover-bg: #b91c1c;--color-logout-text: #ffffff;--color-logout-hover-shadow: 0 4px 6px rgba(220, 38, 38, .2);--color-toggle-bg: rgba(255, 255, 255, .9);--color-toggle-hover-bg: rgba(37, 99, 235, .08);--color-toggle-text: var(--text-color);--color-toggle-shadow: 0 2px 4px rgba(0, 0, 0, .05);--color-close-btn: var(--text-muted);--color-close-btn-hover: var(--danger)}:root[data-theme=Ocean]{--bg-dark: #0c1e2b;--bg-secondary: #1e3a5f;--card-bg: rgba(30, 58, 95, .9);--card-bg-glass: rgba(255, 224, 102, .06);--card-border: rgba(255, 224, 102, .12);--text-color: #e8f4fd;--text-light: #ffffff;--text-muted: #b3d9f2;--accent: #ffd700;--accent2: #ff8c42;--accent-light: rgba(255, 215, 0, .15);--success: #40e0d0;--warning: #ffa500;--danger: #ff6b6b;--info: #87ceeb;--border-color: rgba(255, 224, 102, .2);--color-sidebar-gradient-start: #0c1e2b;--color-sidebar-gradient-end: #1e3a5f;--color-text-primary: var(--text-color);--color-title: var(--text-light);--color-accent: var(--accent);--color-link-hover-bg: rgba(255, 215, 0, .2);--color-link-hover-shadow: rgba(0, 0, 0, .3);--color-scrollbar-thumb: var(--accent2);--color-scrollbar-track: var(--bg-secondary);--color-sidebar-shadow: rgba(0, 0, 0, .4);--color-logout-bg: var(--danger);--color-logout-hover-bg: #ff5252;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .3);--color-toggle-bg: rgba(12, 30, 43, .8);--color-toggle-hover-bg: rgba(255, 215, 0, .25);--color-toggle-text: #ffffff;--color-toggle-shadow: rgba(0, 0, 0, .3);--color-close-btn: var(--text-light);--color-close-btn-hover: #ff8a65}:root[data-theme=Forest]{--bg-dark: #0a1f0a;--bg-secondary: #1a3d1a;--card-bg: rgba(35, 90, 63, .9);--card-bg-glass: rgba(102, 161, 130, .08);--card-border: rgba(102, 161, 130, .15);--text-color: #e8f5e8;--text-light: #ffffff;--text-muted: #b8d4b8;--accent: #4ade80;--accent2: #22c55e;--accent-light: rgba(74, 222, 128, .15);--success: #10b981;--warning: #fbbf24;--danger: #ef4444;--info: #06b6d4;--border-color: rgba(102, 161, 130, .2);--color-sidebar-gradient-start: #0a1f0a;--color-sidebar-gradient-end: #1a3d1a;--color-text-primary: var(--text-color);--color-title: var(--text-light);--color-accent: var(--accent);--color-link-hover-bg: rgba(74, 222, 128, .2);--color-link-hover-shadow: rgba(0, 0, 0, .3);--color-scrollbar-thumb: var(--accent2);--color-scrollbar-track: var(--bg-secondary);--color-sidebar-shadow: rgba(0, 0, 0, .4);--color-logout-bg: var(--danger);--color-logout-hover-bg: #dc2626;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .3);--color-toggle-bg: rgba(10, 31, 10, .8);--color-toggle-hover-bg: rgba(74, 222, 128, .25);--color-toggle-text: #ffffff;--color-toggle-shadow: rgba(0, 0, 0, .3);--color-close-btn: var(--text-light);--color-close-btn-hover: #f28b82}:root[data-theme=Sunset]{--bg-dark: #fff8f0;--bg-secondary: #ffedd5;--card-bg: rgba(254, 215, 170, .9);--card-bg-glass: rgba(249, 115, 22, .08);--card-border: rgba(249, 115, 22, .15);--text-color: #7c2d12;--text-light: #9a3412;--text-muted: #a16207;--accent: #f97316;--accent2: #ea580c;--accent-light: rgba(249, 115, 22, .15);--success: #059669;--warning: #d97706;--danger: #dc2626;--info: #0891b2;--border-color: rgba(249, 115, 22, .2);--color-sidebar-gradient-start: #fff8f0;--color-sidebar-gradient-end: #ffedd5;--color-text-primary: var(--text-color);--color-title: var(--text-light);--color-accent: var(--accent);--color-link-hover-bg: rgba(249, 115, 22, .15);--color-link-hover-shadow: rgba(0, 0, 0, .1);--color-scrollbar-thumb: var(--accent2);--color-scrollbar-track: var(--bg-secondary);--color-sidebar-shadow: rgba(0, 0, 0, .15);--color-logout-bg: var(--danger);--color-logout-hover-bg: #b91c1c;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .15);--color-toggle-bg: rgba(255, 248, 240, .9);--color-toggle-hover-bg: rgba(249, 115, 22, .2);--color-toggle-text: var(--text-color);--color-toggle-shadow: rgba(0, 0, 0, .1);--color-close-btn: var(--text-light);--color-close-btn-hover: #e57373}:root[data-theme=Lavender]{--bg-dark: #faf5ff;--bg-secondary: #f3e8ff;--card-bg: rgba(233, 213, 255, .9);--card-bg-glass: rgba(124, 58, 237, .08);--card-border: rgba(124, 58, 237, .15);--text-color: #4c1d95;--text-light: #6b21a8;--text-muted: #7c3aed;--accent: #8b5cf6;--accent2: #a855f7;--accent-light: rgba(139, 92, 246, .15);--success: #059669;--warning: #d97706;--danger: #dc2626;--info: #0891b2;--border-color: rgba(124, 58, 237, .2);--color-sidebar-gradient-start: #faf5ff;--color-sidebar-gradient-end: #f3e8ff;--color-text-primary: var(--text-color);--color-title: var(--text-light);--color-accent: var(--accent);--color-link-hover-bg: rgba(139, 92, 246, .15);--color-link-hover-shadow: rgba(0, 0, 0, .1);--color-scrollbar-thumb: var(--accent2);--color-scrollbar-track: var(--bg-secondary);--color-sidebar-shadow: rgba(0, 0, 0, .15);--color-logout-bg: var(--danger);--color-logout-hover-bg: #b91c1c;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .15);--color-toggle-bg: rgba(250, 245, 255, .9);--color-toggle-hover-bg: rgba(139, 92, 246, .2);--color-toggle-text: var(--text-color);--color-toggle-shadow: rgba(0, 0, 0, .1);--color-close-btn: var(--text-light);--color-close-btn-hover: #e57373}:root[data-theme=material-light]{--bg-dark: #fafafa;--bg-secondary: #eeeeee;--card-bg: #ffffff;--text-color: #202124;--text-light: #3c4043;--text-muted: #5f6368;--accent: #6200ea;--accent2: #03dac6;--border-color: #e0e0e0;--color-sidebar-gradient-start: #fafafa;--color-sidebar-gradient-end: #eeeeee;--color-text-primary: #202124;--color-title: #3c4043;--color-accent: #6200ea;--color-link-hover-bg: rgba(255, 255, 255, .05);--color-link-hover-shadow: rgba(0, 0, 0, .1);--color-scrollbar-thumb: #6200ea;--color-scrollbar-track: #eeeeee;--color-sidebar-shadow: rgba(0, 0, 0, .5);--color-logout-bg: #e53935;--color-logout-hover-bg: #991b1b;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .2);--color-toggle-bg: rgba(0, 0, 0, .2);--color-toggle-hover-bg: #03dac6;--color-toggle-text: #ffffff;--color-toggle-shadow: rgba(0, 0, 0, .2);--color-close-btn: #3c4043;--color-close-btn-hover: #f87171}:root[data-theme=material-dark]{--bg-dark: #121212;--bg-secondary: #1e1e1e;--card-bg: rgba(30, 30, 30, .9);--card-bg-glass: rgba(187, 134, 252, .08);--card-border: rgba(187, 134, 252, .15);--text-color: #e1e1e1;--text-light: #ffffff;--text-muted: #b3b3b3;--accent: #bb86fc;--accent2: #03dac6;--accent-light: rgba(187, 134, 252, .15);--success: #4caf50;--warning: #ff9800;--danger: #f44336;--info: #2196f3;--border-color: rgba(187, 134, 252, .2);--color-sidebar-gradient-start: #121212;--color-sidebar-gradient-end: #1e1e1e;--color-text-primary: #e1e1e1;--color-title: #ffffff;--color-accent: #bb86fc;--color-link-hover-bg: rgba(187, 134, 252, .2);--color-link-hover-shadow: rgba(0, 0, 0, .3);--color-scrollbar-thumb: #bb86fc;--color-scrollbar-track: #1e1e1e;--color-sidebar-shadow: rgba(0, 0, 0, .5);--color-logout-bg: #f44336;--color-logout-hover-bg: #d32f2f;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .3);--color-toggle-bg: rgba(18, 18, 18, .8);--color-toggle-hover-bg: rgba(3, 218, 198, .25);--color-toggle-text: #ffffff;--color-toggle-shadow: rgba(0, 0, 0, .3);--color-close-btn: #ffffff;--color-close-btn-hover: #f87171}:root[data-theme=dracula]{--bg-dark: #282a36;--bg-secondary: #44475a;--card-bg: #373844;--text-color: #f8f8f2;--text-light: #ffffff;--text-muted: #6272a4;--accent: #bd93f9;--accent2: #ff79c6;--border-color: #6272a4;--color-sidebar-gradient-start: #282a36;--color-sidebar-gradient-end: #44475a;--color-text-primary: #f8f8f2;--color-title: #ffffff;--color-accent: #bd93f9;--color-link-hover-bg: rgba(255, 255, 255, .05);--color-link-hover-shadow: rgba(0, 0, 0, .1);--color-scrollbar-thumb: #bd93f9;--color-scrollbar-track: #44475a;--color-sidebar-shadow: rgba(0, 0, 0, .5);--color-logout-bg: #e53935;--color-logout-hover-bg: #991b1b;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .2);--color-toggle-bg: rgba(0, 0, 0, .2);--color-toggle-hover-bg: #ff79c6;--color-toggle-text: #ffffff;--color-toggle-shadow: rgba(0, 0, 0, .2);--color-close-btn: #ffffff;--color-close-btn-hover: #f87171}:root[data-theme=nord]{--bg-dark: #2e3440;--bg-secondary: #3b4252;--card-bg: rgba(67, 76, 94, .9);--card-bg-glass: rgba(129, 161, 193, .08);--card-border: rgba(129, 161, 193, .15);--text-color: #d8dee9;--text-light: #eceff4;--text-muted: #b6c2d9;--accent: #81a1c1;--accent2: #88c0d0;--accent-light: rgba(129, 161, 193, .15);--success: #a3be8c;--warning: #ebcb8b;--danger: #bf616a;--info: #5e81ac;--border-color: rgba(129, 161, 193, .2);--color-sidebar-gradient-start: #2e3440;--color-sidebar-gradient-end: #3b4252;--color-text-primary: #d8dee9;--color-title: #eceff4;--color-accent: #81a1c1;--color-link-hover-bg: rgba(129, 161, 193, 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#e53935;--color-logout-hover-bg: #991b1b;--color-logout-text: #ffffff;--color-logout-hover-shadow: rgba(0, 0, 0, .2);--color-toggle-bg: rgba(0, 0, 0, .2);--color-toggle-hover-bg: #a6e22e;--color-toggle-text: #ffffff;--color-toggle-shadow: rgba(0, 0, 0, .2);--color-close-btn: #ffffff;--color-close-btn-hover: #f87171}:root[data-theme=one-dark]{--bg-dark: #282c34;--bg-secondary: #21252b;--card-bg: #2c313a;--text-color: #abb2bf;--text-light: #ffffff;--text-muted: #7f848e;--accent: #61afef;--accent2: #c678dd;--border-color: #2c313a;--color-sidebar-gradient-start: #282c34;--color-sidebar-gradient-end: #21252b;--color-text-primary: #abb2bf;--color-title: #ffffff;--color-accent: #61afef;--color-link-hover-bg: rgba(255, 255, 255, .05);--color-link-hover-shadow: rgba(0, 0, 0, .1);--color-scrollbar-thumb: #61afef;--color-scrollbar-track: #21252b;--color-sidebar-shadow: rgba(0, 0, 0, .5);--color-logout-bg: #e53935;--color-logout-hover-bg: #991b1b;--color-logout-text: 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body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 25% 85%,rgba(6,182,212,.08) 0%,transparent 45%),radial-gradient(circle at 75% 15%,rgba(14,165,233,.06) 0%,transparent 45%);background-size:300% 300%;animation:gradientFlow 20s ease infinite;pointer-events:none;z-index:-1}:root[data-theme=Forest] body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 30% 70%,rgba(34,197,94,.05) 0%,transparent 45%),radial-gradient(circle at 70% 30%,rgba(22,163,74,.04) 0%,transparent 45%);background-size:350% 350%;animation:gradientFlow 25s ease infinite;pointer-events:none;z-index:-1}@keyframes gradientFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@media (max-width: 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#fbbf2466}.premium-submit:disabled{background:linear-gradient(135deg,#6b7280,#4b5563)!important;color:#d1d5db!important;cursor:not-allowed!important;opacity:.7!important;transform:none!important;box-shadow:none!important}.premium-submit:disabled:hover{transform:none!important;box-shadow:none!important}.floating-element{position:absolute;border-radius:50%;pointer-events:none;z-index:1}.floating-premium-1{top:12%;right:8%;width:120px;height:120px;background:radial-gradient(circle,rgba(251,191,36,.12),transparent);filter:blur(2px)}.floating-premium-2{bottom:20%;left:6%;width:100px;height:100px;background:radial-gradient(circle,rgba(245,158,11,.1),transparent);filter:blur(2.5px)}.floating-premium-3{top:45%;right:3%;width:140px;height:140px;background:radial-gradient(circle,rgba(217,119,6,.08),transparent);filter:blur(3px)}@media (max-width: 1024px){.quiz-header{flex-direction:column;gap:2rem;text-align:center}.quiz-list{grid-template-columns:repeat(auto-fill,minmax(380px,1fr))}.premium-quiz-container .premium-box .quiz-info{display:grid!important;grid-template-columns:1fr 1fr!important;gap:1rem!important;margin-bottom:2.5rem!important;padding:0!important;background:none!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important;border:none!important;border-radius:0!important;box-shadow:none!important}.premium-quiz-container .premium-box .quiz-info p{padding:.8rem!important;background:#fbbf240d!important;border-radius:.6rem!important;border:1px solid rgba(251,191,36,.1)!important;margin:0!important;font-size:1rem!important;display:flex!important;align-items:center!important;gap:.8rem!important;color:#fbbf24e6!important;font-weight:600!important;transition:all .3s 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p{font-size:.9rem!important;margin:0!important;padding:.5rem!important;gap:.6rem!important;display:flex!important;align-items:center!important;color:#fbbf24e6!important;font-weight:600!important;transition:all .3s ease!important;text-align:left!important;justify-content:flex-start!important;flex-wrap:wrap!important;background:#fbbf240d!important;border-radius:.5rem!important;border:1px solid rgba(251,191,36,.1)!important;grid-template-columns:none!important}.info-icon{font-size:1.2rem;flex-shrink:0}.premium-quiz-container .quiz-actions .delete-btn,.premium-quiz-container .quiz-actions .premium-delete-btn,.premium-quiz-container .quiz-actions .premium-ai-btn,.premium-quiz-container .quiz-actions .premium-add-btn,.premium-quiz-container .quiz-actions .premium-view-btn,.premium-quiz-container .quiz-actions .add-ai-btn,.premium-quiz-container .quiz-actions .add-question-btn,.premium-quiz-container .quiz-actions .view-questions-btn{padding:.8rem!important;font-size:.9rem!important;min-height:44px!important}.premium-modal-box{padding:2rem;width:95%;margin:1rem}.modal-title.premium-title{font-size:1.6rem}}@media (max-width: 320px){.premium-quiz-container{padding:1rem}.premium-box{padding:1.2rem}.premium-quiz-container .premium-box .quiz-info{grid-template-columns:1fr!important;gap:.5rem!important;margin-bottom:1.5rem!important;display:grid!important;padding:0!important;background:none!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important;border:none!important;border-radius:0!important;box-shadow:none!important}.premium-quiz-container .premium-box .quiz-info p{font-size:.85rem!important;margin:0!important;gap:.5rem!important;padding:.4rem!important;display:flex!important;align-items:center!important;color:#fbbf24e6!important;font-weight:600!important;transition:all .3s 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h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:100px;height:3px;background:linear-gradient(135deg,#6366f1,#8b5cf6);border-radius:var(--radius-full)}.quiz-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-lg);margin-bottom:var(--space-2xl);padding:var(--space-xl);background:linear-gradient(135deg,#6366f10d,#8b5cf60d,#d946ef0d);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(99,102,241,.2);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}.quiz-info p{margin:0;padding:var(--space-md);background:#6366f10d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(99,102,241,.1);border-radius:var(--radius-lg);font-size:1rem;transition:all var(--transition-normal);cursor:pointer}.quiz-info p:hover{background:#6366f11a;border-color:#6366f14d;transform:scale(1.02);box-shadow:var(--shadow-md)}.quiz-info p strong{color:#6366f1;display:block;margin-bottom:var(--space-xs);font-weight:700}.question-list{display:flex;flex-direction:column;gap:var(--space-xl)}.question-box{background:linear-gradient(135deg,#6366f10d,#8b5cf60d,#d946ef0d);backdrop-filter:blur(25px);-webkit-backdrop-filter:blur(25px);border:1px solid rgba(99,102,241,.2);border-radius:var(--radius-xl);padding:var(--space-2xl);box-shadow:var(--shadow-lg),0 0 30px #6366f114;transition:all var(--transition-smooth);position:relative;overflow:hidden}.question-box:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(135deg,#6366f1,#8b5cf6,#d946ef);transform:scaleX(0);transition:transform var(--transition-smooth);transform-origin:left}.question-box:hover:before{transform:scaleX(1)}.question-box:hover{transform:translateY(-8px);box-shadow:var(--shadow-2xl),0 20px 60px #6366f126,0 0 40px #8b5cf61a;border-color:#6366f14d}.question-box h3{font-size:1.4rem;font-weight:700;margin:0 0 var(--space-lg) 0;background:linear-gradient(135deg,#6366f1,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.4;transition:all var(--transition-normal)}.question-box ul{list-style:none;padding:0;margin:0 0 var(--space-lg) 0;display:flex;flex-direction:column;gap:var(--space-md)}.question-box li{padding:var(--space-md) var(--space-lg);background:#6366f10d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(99,102,241,.1);border-radius:var(--radius-lg);transition:all var(--transition-normal);cursor:pointer;font-size:.95rem;line-height:1.5}.question-box li:hover{background:#6366f11a;border-color:#6366f14d;transform:translate(5px);box-shadow:var(--shadow-md)}.question-box li strong{color:#6366f1;margin-right:var(--space-sm);font-weight:600}.correct-answer{padding:var(--space-md) var(--space-lg);background:linear-gradient(135deg,#22c55e1a,#16a34a0d);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(34,197,94,.3);border-radius:var(--radius-lg);margin-bottom:var(--space-lg);font-weight:600;color:#16a34a;transition:all var(--transition-normal)}.correct-answer:hover{background:linear-gradient(135deg,#22c55e26,#16a34a14);border-color:#22c55e66;transform:scale(1.02);box-shadow:var(--shadow-md)}.correct-answer strong{color:#15803d}.marks-display{padding:var(--space-sm) var(--space-md);background:linear-gradient(135deg,#3b82f61a,#2563eb0d);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(59,130,246,.3);border-radius:var(--radius-lg);margin-bottom:var(--space-lg);font-weight:600;color:#2563eb;transition:all var(--transition-normal);display:inline-block;min-width:120px;text-align:center}.marks-display:hover{background:linear-gradient(135deg,#3b82f626,#2563eb14);border-color:#3b82f666;transform:scale(1.02);box-shadow:var(--shadow-md)}.marks-display strong{color:#1d4ed8}.delete-btn{background:linear-gradient(135deg,#dc2626,#ef4444);color:#fff;border:none;border-radius:var(--radius-lg);padding:var(--space-sm) var(--space-lg);font-size:.9rem;font-weight:600;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-md);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);position:relative;overflow:hidden;width:fit-content}.delete-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 var(--transition-normal)}.delete-btn:hover:before{left:100%}.delete-btn:hover{transform:translateY(-2px) scale(1.05);box-shadow:var(--shadow-xl),0 10px 30px #dc262666;background:linear-gradient(135deg,#b91c1c,#dc2626)}.delete-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.loading-container,.error-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;text-align:center;padding:var(--space-2xl);background:linear-gradient(135deg,#6366f10d,#8b5cf60d);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(99,102,241,.1);border-radius:var(--radius-xl);margin:var(--space-xl) auto;box-shadow:var(--shadow-lg);max-width:500px}.loading-spinner{font-size:3rem;margin-bottom:var(--space-lg);animation:spin 2s linear infinite}.error-container{border-color:#ef44444d;background:linear-gradient(135deg,#ef44440d,#dc262605)}.no-questions{text-align:center;padding:var(--space-2xl);background:linear-gradient(135deg,#6366f10d,#8b5cf60d);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(99,102,241,.1);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);color:var(--text-muted);font-size:1.1rem}@media (max-width: 1200px){.quiz-questions-container{max-width:950px;margin:var(--space-lg) auto;padding:var(--space-xl) var(--space-lg)}.quiz-questions-container h2{font-size:1.8rem}.question-box{padding:var(--space-lg);margin-bottom:var(--space-lg)}}@media (max-width: 768px){.quiz-questions-container{max-width:95%;padding:var(--space-lg) var(--space-md);margin:var(--space-md);min-height:55vh}.quiz-questions-container h2{font-size:1.6rem;margin-bottom:var(--space-lg)}.question-box{padding:var(--space-md);margin-bottom:var(--space-md);border-radius:var(--radius-lg)}.question-box h3{font-size:1.1rem;margin-bottom:var(--space-md)}.question-box p{font-size:.95rem;line-height:1.5}.delete-btn,.back-btn{width:100%;box-sizing:border-box;text-align:center;padding:var(--space-md);font-size:1rem;min-height:48px}.back-btn{margin-bottom:var(--space-lg)}.delete-btn{margin-top:var(--space-md)}}@media (max-width: 480px){.quiz-questions-container{padding:var(--space-md) var(--space-sm);margin:var(--space-sm);border-radius:var(--radius-lg);min-height:50vh}.quiz-questions-container h2{font-size:1.4rem;margin-bottom:var(--space-md)}.quiz-questions-container h2:after{width:40px;height:2px}.question-box{padding:var(--space-sm) var(--space-md);margin-bottom:var(--space-sm);border-radius:var(--radius-md)}.question-box h3{font-size:1rem;margin-bottom:var(--space-sm)}.question-box p{font-size:.9rem;line-height:1.4}.delete-btn,.back-btn{padding:var(--space-sm) var(--space-md);font-size:.9rem;min-height:46px}}@media (max-width: 320px){.quiz-questions-container{padding:var(--space-sm);margin:var(--space-xs);min-height:45vh}.quiz-questions-container h2{font-size:1.2rem;margin-bottom:var(--space-sm)}.question-box{padding:var(--space-xs) var(--space-sm);margin-bottom:var(--space-xs)}.question-box h3{font-size:.95rem;margin-bottom:var(--space-xs)}.question-box p{font-size:.85rem;line-height:1.3}.delete-btn,.back-btn{padding:var(--space-xs) var(--space-sm);font-size:.85rem;min-height:44px}}.quiz-questions-container h2{margin-top:0;font-size:2rem;font-weight:800;text-align:center;background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-xl);position:relative}.quiz-questions-container h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:60px;height:3px;background:linear-gradient(135deg,#6366f1,#8b5cf6);border-radius:var(--radius-full)}.question-box{background:var(--glass-bg);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid var(--glass-border);padding:var(--space-xl);border-radius:var(--radius-xl);margin-bottom:var(--space-xl);box-shadow:var(--shadow-lg),0 0 30px #6366f10d;text-align:left;transition:all var(--transition-normal);position:relative;overflow:hidden}.question-box:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(135deg,var(--accent),var(--accent2));opacity:.6}.question-box:hover{transform:translateY(-5px) scale(1.02);box-shadow:var(--shadow-xl),0 0 40px #6366f126;border-color:var(--accent)}.question-box h3{margin-top:0;margin-bottom:var(--space-xs);font-size:1.2rem}.question-box ul{list-style:none;padding:0;margin:0}.question-box ul li{padding:var(--space-xs) 0;font-size:.95rem;word-break:break-word}.delete-btn,.back-btn{display:inline-block;border:none;border-radius:6px;padding:var(--space-xs) var(--space-sm);cursor:pointer;max-width:300px;transition:background .3s ease,transform .2s ease;font-size:.9rem}.delete-btn{background:var(--danger);color:#fff;margin-top:var(--space-sm)}.delete-btn:hover{background:#b71c1c;transform:scale(1.03)}.back-btn{background:var(--accent);color:#fff;margin-bottom:var(--space-md)}.back-btn:hover{background:var(--accent2);transform:scale(1.03)}.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;min-height:100vh;perspective:1000px;overflow:hidden}.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,#6366f11a,#8b5cf61a);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1)}.orb-1{width:200px;height:200px;top:10%;left:80%;background:linear-gradient(135deg,#6366f126,#ec48991a)}.orb-2{width:150px;height:150px;bottom:20%;left:10%;background:linear-gradient(135deg,#8b5cf626,#22c55e1a)}.orb-3{width:100px;height:100px;top:50%;right:20%;background:linear-gradient(135deg,#ec489926,#6366f11a)}.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 #6366f11a,inset 0 1px #ffffff1a;position:relative;transform-style:preserve-3d;text-align:center}.textContainer:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);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:linear-gradient(135deg,#6366f1,#8b5cf6 30%,#ec4899 70%,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-md);text-shadow:0 4px 20px rgba(99,102,241,.3);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:#ffffff0a;border-radius:20px;border:1px solid rgba(255,255,255,.08);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:0 8px 25px -5px #0000001a,0 0 0 1px #ffffff05}.item:hover{transform:translateY(-4px);background:#ffffff0f;border-color:#6366f14d;box-shadow:0 20px 40px -10px #6366f126,0 0 0 1px #6366f11a}.item:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#6366f11a,#8b5cf61a);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:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);border-radius:18px;box-shadow:0 8px 25px #6366f140,0 0 0 1px #ffffff1a;position:relative;z-index:1;transition:all .3s ease}.item:hover .item-icon{transform:scale(1.05) rotate(5deg);box-shadow:0 12px 35px #6366f159,0 0 0 1px #ffffff26}.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}.social-links{display:flex;justify-content:center;gap:var(--space-lg);margin-top:var(--space-xl)}.social-link{display:flex;align-items:center;justify-content:center;width:60px;height:60px;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:50%;font-size:1.5rem;text-decoration:none;box-shadow:0 8px 25px #6366f14d;transition:all var(--transition-normal);position:relative;overflow:hidden}.social-link:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#fff3,#ffffff1a);opacity:0;transition:opacity var(--transition-normal)}.social-link:hover:before{opacity:1}.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 rgba(255,255,255,.15);box-shadow:0 25px 50px -12px #00000040,0 0 0 1px #ffffff0d,inset 0 1px #ffffff1a;position:relative;transform-style:preserve-3d;overflow:hidden;max-width:700px;margin:0 auto;width:100%}.formContainer:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#ec4899,#8b5cf6,#6366f1,#10b981);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:linear-gradient(135deg,#ec4899,#8b5cf6,#6366f1);-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 18px 64px;font-size:1.1rem;border:2px solid rgba(255,255,255,.08);border-radius:16px;background:#ffffff08;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:#6366f180;background:#6366f10d;transform:translateY(-2px);box-shadow:0 10px 25px -5px #6366f11a,0 0 0 1px #6366f133}.input-icon{position:absolute;left:20px;font-size:1.5rem;z-index:2;pointer-events:none;color:#6366f1b3;transition:all .3s ease}.submit-btn{background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);color:#fff;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:0 10px 25px -5px #6366f166,0 0 0 1px #ffffff0d}.submit-btn:hover{transform:translateY(-2px);box-shadow:0 20px 40px -10px #6366f166,0 0 0 1px #ffffff1a}.submit-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .6s ease}.submit-btn:hover:before{left:100%}.submit-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.loading-spinner{display:flex;align-items:center;gap:var(--space-sm)}.spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top:2px solid white;border-radius:50%}.error-message{padding:16px 24px;border-radius:16px;font-weight:600;text-align:center;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);background:#ef44441a;color:#ef4444;border:1px solid rgba(239,68,68,.3);margin-top:16px;box-shadow:0 8px 25px -5px #ef444433}.success-message{padding:16px 24px;border-radius:16px;font-weight:600;text-align:center;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);background:#22c55e1a;color:#22c55e;border:1px solid rgba(34,197,94,.3);margin-top:16px;box-shadow:0 8px 25px -5px #22c55e33}@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}.social-link{width:50px;height:50px;font-size:1.3rem}.input-group input,.input-group textarea{padding:var(--space-md) var(--space-lg) var(--space-md) 3.5rem;font-size:1rem}.input-icon{left:var(--space-md);font-size:1.3rem}.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}.social-links{gap:var(--space-md)}.social-link{width:45px;height:45px;font-size:1.2rem}.input-group input,.input-group textarea{padding:var(--space-sm) var(--space-md) var(--space-sm) 3rem;font-size:.95rem}.input-icon{left:var(--space-sm);font-size:1.2rem}.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) var(--space-sm) var(--space-sm) 2.5rem;font-size:.9rem}.input-icon{left:var(--space-xs);font-size:1.1rem}.submit-btn{font-size:.9rem;min-height:48px}.floating-orb{display:none}}@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}}.formContainer::-webkit-scrollbar{width:8px}.formContainer::-webkit-scrollbar-track{background:#ffffff1a;border-radius:10px}.formContainer::-webkit-scrollbar-thumb{background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:10px}.formContainer::-webkit-scrollbar-thumb:hover{background:linear-gradient(135deg,var(--accent2),var(--accent))}.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)}:root{--leaderboard-gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--leaderboard-gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--leaderboard-gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--leaderboard-gradient-gold: linear-gradient(135deg, #ffd700 0%, #ffb347 100%);--leaderboard-gradient-silver: linear-gradient(135deg, #c0c0c0 0%, #a8a8a8 100%);--leaderboard-gradient-bronze: linear-gradient(135deg, #cd7f32 0%, #b8860b 100%);--leaderboard-shimmer: linear-gradient(90deg, transparent, rgba(255, 255, 255, .4), transparent);--leaderboard-glow: 0 0 40px rgba(102, 126, 234, .8);--leaderboard-shadow-xl: 0 30px 60px rgba(0, 0, 0, .3);--leaderboard-glass: rgba(255, 255, 255, .12);--leaderboard-border: rgba(255, 255, 255, .25)}.leaderboard-container{width:100%;max-width:1200px;margin:var(--space-xl) auto;padding:3rem;background:var(--leaderboard-glass);backdrop-filter:blur(40px);-webkit-backdrop-filter:blur(40px);color:var(--text-color);border-radius:2.5rem;border:2px solid var(--leaderboard-border);box-shadow:var(--leaderboard-shadow-xl),0 0 80px #667eea33,inset 0 2px #ffffff26;text-align:center;position:relative;overflow:hidden;animation:containerSlideIn 1s ease-out;box-sizing:border-box}@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(--leaderboard-gradient-gold);border-radius:2.5rem 2.5rem 0 0;animation:championGlow 3s ease-in-out infinite}@keyframes championGlow{0%,to{background:var(--leaderboard-gradient-gold);box-shadow:0 0 30px #ffd70099}33%{background:var(--leaderboard-gradient-silver);box-shadow:0 0 30px #c0c0c099}66%{background:var(--leaderboard-gradient-bronze);box-shadow:0 0 30px #cd7f3299}}.leaderboard-container:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 50% 0%,rgba(255,215,0,.08) 0%,transparent 50%);border-radius:inherit;pointer-events:none}.leaderboard-container h2{font-size:clamp(2.5rem,5vw,4rem);font-weight:900;background:var(--leaderboard-gradient-gold);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:2rem;position:relative;display:flex;align-items:center;justify-content:center;gap:1rem;animation:titleFloat 1s ease-out;filter:drop-shadow(0 0 20px rgba(255,215,0,.5))}@keyframes titleFloat{0%{opacity:0;transform:translateY(-30px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}.leaderboard-container h2:before{content:"🏆";font-size:3rem;animation:trophyBounce 2s ease-in-out infinite;filter:drop-shadow(0 0 15px rgba(255,215,0,.8))}@keyframes trophyBounce{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-10px) rotate(5deg)}}.leaderboard-container h2:after{content:"";position:absolute;bottom:-15px;left:50%;transform:translate(-50%);width:120px;height:4px;background:var(--leaderboard-gradient-gold);border-radius:2px;animation:underlineGlow 2s ease-in-out infinite}@keyframes underlineGlow{0%,to{width:120px;background:var(--leaderboard-gradient-gold);box-shadow:0 0 20px #ffd70099}50%{width:150px;background:var(--leaderboard-gradient-2);box-shadow:0 0 25px #f093fbcc}}.leaderboard-table{margin-top:2.5rem;overflow:visible;background:var(--leaderboard-glass);border-radius:1.5rem;border:2px solid var(--leaderboard-border);-webkit-backdrop-filter:blur(25px);backdrop-filter:blur(25px);position:relative;animation:tableSlideIn .8s ease-out .3s both;width:100%;max-width:100%;box-sizing:border-box}@keyframes tableSlideIn{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.leaderboard-table:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--leaderboard-shimmer);animation:tableShimmer 6s ease-in-out infinite;z-index:1;pointer-events:none}@keyframes tableShimmer{0%{left:-100%}50%{left:100%}to{left:100%}}.leaderboard-table table{width:100%;border-collapse:separate;border-spacing:0;position:relative;z-index:5;table-layout:auto;box-sizing:border-box}.leaderboard-table th{background:var(--leaderboard-gradient-1);color:#fff;font-weight:800;text-transform:uppercase;letter-spacing:.1em;font-size:1rem;padding:1.2rem .8rem;border:none;position:sticky;top:0;z-index:15;text-shadow:0 2px 4px rgba(0,0,0,.5);-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}.leaderboard-table td,.leaderboard-table th{padding:1rem .8rem;border-bottom:1px solid rgba(255,255,255,.1);vertical-align:middle;box-sizing:border-box}.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:#667eea26;transform:translateY(-1px);box-shadow:0 6px 20px #667eea40;transition:all .3s cubic-bezier(.25,.46,.45,.94)}.leaderboard-table tbody tr:nth-child(1) td:first-child{background:var(--leaderboard-gradient-gold);color:#000;font-weight:900;text-shadow:0 1px 2px rgba(0,0,0,.3);position:relative;padding-left:2.8rem;text-align:center;min-width:80px}.leaderboard-table tbody tr:nth-child(1) td:first-child:before{content:"🥇";position:absolute;left:8px;top:50%;transform:translateY(-50%);font-size:1.2rem;animation:medalSpin 3s ease-in-out infinite;z-index:1}.leaderboard-table tbody tr:nth-child(1) td:first-child .rank-position{position:relative;z-index:2;color:#000;font-weight:900}.leaderboard-table tbody tr:nth-child(2) td:first-child{background:var(--leaderboard-gradient-silver);color:#000;font-weight:900;text-shadow:0 1px 2px rgba(0,0,0,.3);position:relative;padding-left:2.8rem;text-align:center;min-width:80px}.leaderboard-table tbody tr:nth-child(2) td:first-child:before{content:"🥈";position:absolute;left:8px;top:50%;transform:translateY(-50%);font-size:1.2rem;animation:medalSpin 3s ease-in-out infinite .5s;z-index:1}.leaderboard-table tbody tr:nth-child(2) td:first-child .rank-position{position:relative;z-index:2;color:#000;font-weight:900}.leaderboard-table tbody tr:nth-child(3) td:first-child{background:var(--leaderboard-gradient-bronze);color:#000;font-weight:900;text-shadow:0 1px 2px rgba(0,0,0,.3);position:relative;padding-left:2.8rem;text-align:center;min-width:80px}.leaderboard-table tbody tr:nth-child(3) td:first-child:before{content:"🥉";position:absolute;left:8px;top:50%;transform:translateY(-50%);font-size:1.2rem;animation:medalSpin 3s ease-in-out infinite 1s;z-index:1}.leaderboard-table tbody tr:nth-child(3) td:first-child .rank-position{position:relative;z-index:2;color:#000;font-weight:900}@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:#fff;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 rgba(255,255,255,.1);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:#ffffff08;border-radius:20px;border:1px solid rgba(255,255,255,.08)}.leaderboard-controls select{background:linear-gradient(135deg,var(--accent) 0%,var(--accent2) 100%);color:#fff;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:var(--space-md) var(--space-xl);font-size:.9rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;cursor:pointer;transition:all var(--transition-normal);min-width:140px;min-height:45px;box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 16px center;background-size:16px;padding-right:45px;display:inline-flex;align-items:center;margin:0 var(--space-sm);margin-top:var(--space-lg)}.leaderboard-controls select:hover{background:var(--accent2);transform:translateY(-2px);box-shadow:0 8px 25px #6366f133}.leaderboard-controls select:focus{outline:none;background:var(--accent2);box-shadow:0 0 0 3px #6366f126}.xp-leaderboard-container{background:linear-gradient(135deg,#22c55e1a,#6366f11a,#ec48991a)}.xp-leaderboard-container h2{background:linear-gradient(135deg,#22c55e,#6366f1,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.xp-leaderboard-container:before{background:linear-gradient(135deg,#22c55e,#6366f1,#ec4899)}.rank-1{background:linear-gradient(135deg,#ffd70033,#ffc1071a)!important;border-left:4px solid #ffd700!important;color:#d4a700!important;font-weight:700!important}.rank-2{background:linear-gradient(135deg,#c0c0c033,#a9a9a91a)!important;border-left:4px solid #c0c0c0!important;color:#9e9e9e!important;font-weight:600!important}.rank-3{background:linear-gradient(135deg,#cd7f3233,#b873331a)!important;border-left:4px solid #cd7f32!important;color:#b8734d!important;font-weight:600!important}.rank-4-to-10{background:linear-gradient(135deg,#6366f11a,#8b5cf60d)!important;border-left:3px solid #6366f1!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:#22c55e;text-shadow:0 1px 2px rgba(34,197,94,.2)}.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:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg)}.period-btn.active{background:linear-gradient(135deg,var(--accent) 0%,var(--accent2) 100%);color:#fff;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 rgba(99,102,241,.2);border-top:4px solid #6366f1;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:#ef4444;margin-top:var(--space-md)}@media (max-width: 1200px){.leaderboard-container{max-width:95%;margin:var(--space-lg) auto;padding:var(--space-xl) var(--space-lg)}.leaderboard-container h2{font-size:2rem}.leaderboard-table th,.leaderboard-table 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)}.leaderboard-container h2{font-size:1.8rem;margin-bottom:var(--space-lg)}.leaderboard-container h2:after{width:60px;height:2px}.leaderboard-table{margin-top:var(--space-lg);border-radius:var(--radius-lg);overflow-x:auto}.leaderboard-table th,.leaderboard-table td{padding:var(--space-sm) var(--space-xs);font-size:.9rem}.leaderboard-table th{font-size:.8rem;padding:var(--space-sm) var(--space-xs)}.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-left:2.2rem;min-width:60px}.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{left:4px;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)}.leaderboard-container h2{font-size:1.5rem;margin-bottom:var(--space-md)}.leaderboard-container h2:after{width:40px}.leaderboard-table{margin-top:var(--space-md);border-radius:var(--radius-md)}.leaderboard-table th,.leaderboard-table td{padding:var(--space-xs) var(--space-sm);font-size:.85rem}.leaderboard-table th{font-size:.75rem;padding:var(--space-xs)}.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)}.leaderboard-container h2{font-size:1.3rem;margin-bottom:var(--space-sm)}.leaderboard-table th,.leaderboard-table td{padding:var(--space-xs);font-size:.8rem}.leaderboard-table th{font-size:.7rem}.leaderboard-buttons button{width:100%;font-size:.85rem;min-height:44px}.leaderboard-controls select{width:100%;font-size:.8rem;min-height:42px}}.themes-container{max-width:1300px;margin:var(--space-lg) auto;padding:var(--space-xl) var(--space-lg);position:relative;min-height:calc(100vh - 100px)}.themes-container:before{content:"";position:absolute;top:-20%;left:-20%;width:140%;height:140%;background:radial-gradient(circle at 30% 70%,rgba(99,102,241,.04) 0%,transparent 65%),radial-gradient(circle at 70% 30%,rgba(139,92,246,.03) 0%,transparent 65%);pointer-events:none;z-index:-1;animation:float 25s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0) rotate(0) scale(1)}33%{transform:translateY(-15px) rotate(1deg) scale(1.02)}66%{transform:translateY(-25px) rotate(-1deg) scale(1.01)}}.themes-container h2{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-align:center;margin-bottom:var(--space-2xl);position:relative;letter-spacing:-.03em;text-shadow:0 8px 20px rgba(99,102,241,.2)}.themes-container h2:after{content:"";position:absolute;bottom:-15px;left:50%;transform:translate(-50%);width:100px;height:4px;background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);border-radius:var(--radius-full);box-shadow:0 4px 15px #6366f166,0 0 30px #8b5cf633;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:translate(-50%) scale(1)}50%{opacity:.8;transform:translate(-50%) scale(1.05)}}.themes-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:var(--space-2xl);justify-content:center;align-items:stretch;max-width:1200px;margin:0 auto}.theme-card{background:var(--card-bg-glass);backdrop-filter:blur(35px);-webkit-backdrop-filter:blur(35px);border:1px solid var(--card-border);border-radius:var(--radius-2xl);padding:var(--space-xl);box-shadow:var(--shadow-2xl),0 0 50px #6366f11a,inset 0 1px #ffffff26;display:flex;flex-direction:column;justify-content:space-between;transition:all var(--transition-normal);position:relative;overflow:hidden;height:280px;width:100%}.theme-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#6366f108,#8b5cf605,#f43f5e05);opacity:0;transition:opacity var(--transition-normal);border-radius:var(--radius-2xl)}.theme-card:hover{transform:translateY(-10px) scale(1.03);box-shadow:var(--shadow-2xl),0 0 60px #6366f140,0 0 100px #8b5cf626,inset 0 1px #ffffff40;border-color:var(--accent)}.theme-card:hover:before{opacity:1}.theme-card h3{color:var(--text-light);font-size:1.5rem;font-weight:700;margin-bottom:var(--space-md);background:linear-gradient(135deg,var(--accent) 0%,var(--accent2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;text-shadow:0 2px 8px rgba(99,102,241,.2)}.theme-card p{color:var(--text-muted);font-size:1rem;line-height:1.7;margin-bottom:var(--space-xl);flex-grow:1;opacity:.9}.theme-card button{background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);color:#fff;border:none;border-radius:var(--radius-xl);padding:var(--space-md) var(--space-2xl);font-size:1rem;font-weight:700;cursor:pointer;transition:all var(--transition-normal);text-transform:uppercase;letter-spacing:.08em;position:relative;overflow:hidden;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.15);box-shadow:0 6px 20px #6366f159,0 0 30px #8b5cf633,inset 0 1px #fff3;min-height:50px;display:flex;align-items:center;justify-content:center}.theme-card button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);transition:left var(--transition-slow)}.theme-card button:hover:before{left:100%}.theme-card button:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 12px 30px #6366f180,0 0 50px #8b5cf64d,inset 0 1px #ffffff4d;background:linear-gradient(135deg,#7c3aed,#a855f7,#f97e88);border-color:#ffffff4d}.theme-card button:active{transform:translateY(-1px) scale(1.02);transition:all .1s ease}@media (max-width: 768px){.themes-container{padding:var(--space-md);margin:var(--space-lg) auto}.themes-grid{grid-template-columns:1fr;gap:var(--space-lg)}.theme-card{min-height:240px;padding:var(--space-lg)}.themes-container h2{font-size:2rem}}.themes-container .no-themes{text-align:center;color:var(--text-muted);font-size:1rem;margin-top:var(--space-md)}@media (max-width: 1200px){.themes-container{max-width:95%;padding:var(--space-xl) var(--space-md)}.themes-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--space-xl)}.theme-card{height:270px}}@media (max-width: 768px){.themes-container{padding:var(--space-lg) var(--space-sm);min-height:calc(100vh - 100px)}.themes-container h2{font-size:2rem;margin-bottom:var(--space-xl)}.themes-grid{grid-template-columns:1fr;gap:var(--space-lg);max-width:500px}.theme-card{width:100%;height:250px;padding:var(--space-lg)}.theme-card h3{font-size:1.3rem}.theme-card p{font-size:.95rem;margin-bottom:var(--space-lg);overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical}.theme-card button{width:100%;padding:var(--space-md) var(--space-lg);font-size:.95rem}}@media (max-width: 480px){.themes-container{padding:var(--space-md) 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p{color:var(--text-secondary);margin:0;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.9rem}.chart-card{background:linear-gradient(135deg,#ffd7000a,#ffc10705);-webkit-backdrop-filter:blur(25px);backdrop-filter:blur(25px);padding:var(--space-xl);border-radius:var(--radius-xl);border:1px solid rgba(255,215,0,.12);box-shadow:var(--shadow-xl),0 0 20px #ffd7000f;transition:all var(--transition-normal)}.chart-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2xl),0 0 25px #ffd7001f;border-color:#ffd7004d}.chart-card h3{font-size:1.5rem;font-weight:700;color:var(--text-color);margin:0 0 var(--space-lg) 0;padding-bottom:var(--space-md);border-bottom:2px solid var(--card-border);word-break:break-word;overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;line-height:1.3;max-width:100%;white-space:normal;text-align:left}@media (max-width: 768px){.chart-card 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#48bb7866}.pwa-install-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}@media (max-width: 768px){.connection-status{margin-bottom:var(--space-md);padding:var(--space-sm);border-radius:var(--radius-md);width:100%}.status-indicator{justify-content:center;flex-wrap:wrap;text-align:center;gap:var(--space-sm)}.status-text{font-size:.85rem;text-align:center}.pwa-install-banner{flex-direction:column;text-align:center;gap:var(--space-md);padding:var(--space-lg);margin:var(--space-md) 0;border-radius:var(--radius-lg);width:100%;max-width:100%;overflow:hidden}.pwa-content{flex-direction:column;text-align:center;gap:var(--space-md);width:100%;max-width:100%}.pwa-icon{width:45px;height:45px;font-size:1.8rem;margin:0 auto;flex-shrink:0}.pwa-text{width:100%;max-width:100%}.pwa-text h4{font-size:1rem;margin-bottom:var(--space-sm);word-break:break-word;overflow-wrap:break-word;line-height:1.3}.pwa-text p{font-size:.85rem;line-height:1.4;opacity:.9;word-break:break-word;overflow-wrap:break-word;max-width:100%}.pwa-install-btn{width:100%;padding:var(--space-lg) var(--space-xl);min-width:unset;font-size:.95rem;font-weight:600;border-radius:var(--radius-lg);box-shadow:0 6px 20px #48bb7840;min-height:48px}.pwa-install-btn:hover{transform:translateY(-1px);box-shadow:0 8px 25px #48bb7859}.pwa-installed-status{flex-direction:column;text-align:center;gap:var(--space-md);padding:var(--space-lg);margin:var(--space-md) 0}.installed-content{flex-direction:column;text-align:center;gap:var(--space-md)}.installed-icon{width:45px;height:45px;font-size:1.8rem;margin:0 auto}.installed-text h4{font-size:1rem;margin-bottom:var(--space-sm)}.installed-text p{font-size:.85rem;line-height:1.4;opacity:.9}}@media (max-width: 480px){.connection-status{padding:var(--space-sm);margin-bottom:var(--space-sm)}.status-indicator{gap:var(--space-xs)}.status-dot{width:8px;height:8px}.status-text{font-size:.75rem}.pwa-install-banner{padding:var(--space-md);margin:var(--space-sm) 0;gap:var(--space-sm)}.pwa-icon{width:40px;height:40px;font-size:1.5rem}.pwa-text h4{font-size:.9rem;margin-bottom:var(--space-xs);word-break:break-word;overflow-wrap:anywhere;line-height:1.3;max-width:100%;text-align:center}.pwa-text p{font-size:.8rem;line-height:1.3;word-break:break-word;overflow-wrap:anywhere;max-width:100%;text-align:center}.pwa-install-btn{padding:var(--space-md) var(--space-lg);font-size:.85rem;min-height:44px}}.features-showcase-card{grid-column:1 / -1;background:linear-gradient(135deg,#667eea14,#764ba20d);-webkit-backdrop-filter:blur(25px);backdrop-filter:blur(25px);padding:var(--space-xl);border-radius:var(--radius-xl);border:1px solid rgba(102,126,234,.2);box-shadow:var(--shadow-xl),0 0 30px #667eea1a;transition:all var(--transition-normal);margin-top:var(--space-lg)}.features-showcase-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2xl),0 0 40px #667eea26;border-color:#667eea4d}.features-showcase-card h3{font-size:1.8rem;font-weight:700;color:var(--text-color);margin:0 0 var(--space-xl) 0;text-align:center;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-lg);margin-bottom:var(--space-xl)}.feature-card{background:linear-gradient(135deg,#ffffff14,#ffffff0a);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);padding:var(--space-lg);border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.1);box-shadow:0 8px 25px #0000001a;transition:all var(--transition-normal);cursor:pointer;position:relative;overflow:hidden;display:flex;align-items:center;gap:var(--space-md)}.feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius-lg) var(--radius-lg) 0 0}.feature-card.ai-feature:before{background:linear-gradient(90deg,#667eea,#764ba2)}.feature-card.realtime-feature:before{background:linear-gradient(90deg,#f093fb,#f5576c)}.feature-card.social-feature:before{background:linear-gradient(90deg,#4facfe,#00f2fe)}.feature-card.gamification-feature:before{background:linear-gradient(90deg,#43e97b,#38f9d7)}.feature-card:hover{transform:translateY(-5px) scale(1.02);box-shadow:0 15px 35px #00000026;border-color:#fff3}.feature-icon{font-size:3rem;display:flex;align-items:center;justify-content:center;width:70px;height:70px;border-radius:var(--radius-lg);flex-shrink:0;box-shadow:0 8px 25px #0000001a}.ai-feature .feature-icon{background:linear-gradient(135deg,#667eea,#764ba2)}.realtime-feature .feature-icon{background:linear-gradient(135deg,#f093fb,#f5576c)}.social-feature .feature-icon{background:linear-gradient(135deg,#4facfe,#00f2fe)}.gamification-feature .feature-icon{background:linear-gradient(135deg,#43e97b,#38f9d7)}.feature-content{flex:1}.feature-content h4{font-size:1.2rem;font-weight:600;color:var(--text-color);margin:0 0 var(--space-sm) 0}.feature-content p{color:var(--text-secondary);margin:0 0 var(--space-md) 0;font-size:.9rem;line-height:1.5}.feature-tags{display:flex;gap:var(--space-xs);flex-wrap:wrap}.feature-tag{padding:var(--space-xs) var(--space-sm);background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-sm);font-size:.75rem;font-weight:500;color:var(--text-secondary);white-space:nowrap}.feature-arrow{font-size:1.5rem;color:var(--text-secondary);transition:all var(--transition-normal)}.feature-card:hover .feature-arrow{transform:translate(5px);color:var(--text-color)}@media (max-width: 768px){.features-showcase-card{grid-column:1 / -1;padding:var(--space-lg);margin-top:var(--space-md);width:100%}.features-grid{grid-template-columns:1fr;gap:var(--space-md)}.feature-card{padding:var(--space-md);flex-direction:row;text-align:left;gap:var(--space-md);width:100%}.feature-icon{width:45px;height:45px;font-size:1.8rem}.feature-content{text-align:left}.feature-tags{justify-content:flex-start}.feature-arrow{display:none}}@media (max-width: 480px){.features-showcase-card h3{font-size:clamp(1.1rem,4vw,1.3rem)}.feature-card{padding:var(--space-sm);gap:var(--space-sm)}.feature-icon{width:35px;height:35px;font-size:1.3rem}.feature-content h4{font-size:.9rem}.feature-content p{font-size:.75rem}.feature-tag{font-size:.6rem}}.achievement-system{max-width:1400px;margin:0 auto;padding:var(--space-xl);min-height:100vh;background:transparent}.achievement-header{display:flex;flex-direction:column;gap:var(--space-xl);margin-bottom:var(--space-2xl);padding:var(--space-2xl);background:var(--card-bg-glass);-webkit-backdrop-filter:blur(25px);backdrop-filter:blur(25px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-xl)}.header-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--space-lg)}.header-content h1{font-size:2.8rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0}.progress-overview{display:flex;align-items:center;gap:var(--space-lg)}.completion-circle{position:relative;display:flex;align-items:center;justify-content:center}.progress-ring{transform:rotate(-90deg)}.percentage-text{position:absolute;font-size:1rem;font-weight:700;color:var(--text-color)}.progress-info{display:flex;flex-direction:column;gap:var(--space-xs)}.progress-main{font-size:1.2rem;font-weight:700;color:var(--text-color);margin:0}.progress-sub{color:var(--text-secondary);margin:0;font-size:.9rem}.filter-controls{display:flex;gap:var(--space-sm);background:#ffffff0d;padding:var(--space-xs);border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.1)}.filter-btn{padding:var(--space-sm) var(--space-lg);border:none;background:transparent;color:var(--text-secondary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-normal);font-weight:500}.filter-btn.active,.filter-btn:hover{background:var(--gradient-primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}.achievements-grid{display:flex;flex-direction:column;gap:var(--space-2xl)}.achievement-category{background:var(--card-bg-glass);-webkit-backdrop-filter:blur(25px);backdrop-filter:blur(25px);border-radius:var(--radius-2xl);border:1px solid var(--card-border);box-shadow:var(--shadow-xl);padding:var(--space-2xl);transition:all var(--transition-normal)}.achievement-category:hover{transform:translateY(-2px);box-shadow:var(--shadow-2xl)}.category-title{font-size:1.8rem;font-weight:700;color:var(--text-color);margin:0 0 var(--space-xl) 0;padding-bottom:var(--space-md);border-bottom:2px solid var(--card-border);display:flex;align-items:center;gap:var(--space-md)}.category-achievements{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:var(--space-lg)}.achievement-card{background:#ffffff08;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border-radius:var(--radius-xl);border:2px solid rgba(255,255,255,.1);padding:var(--space-xl);transition:all var(--transition-normal);position:relative;overflow:hidden;min-height:140px;display:flex;gap:var(--space-lg)}.achievement-card.unlocked{background:#6366f114}.achievement-card.locked{opacity:.7;filter:grayscale(.3)}.achievement-card:hover{transform:translateY(-2px);background:#ffffff0f}.achievement-icon{font-size:2.5rem;display:flex;align-items:center;justify-content:center;width:70px;height:70px;background:var(--gradient-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);flex-shrink:0}.achievement-content{flex:1;display:flex;flex-direction:column;gap:var(--space-sm)}.achievement-title{font-size:1.4rem;font-weight:700;color:var(--text-color);margin:0}.achievement-description{color:var(--text-secondary);margin:0;font-size:1rem;line-height:1.5;flex:1}.achievement-meta{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);margin-top:auto}.rarity{padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.rarity.common{background:#9ca3af33;color:#9ca3af}.rarity.rare{background:#3b82f633;color:#3b82f6}.rarity.epic{background:#8b5cf633;color:#8b5cf6}.rarity.legendary{background:#f59e0b33;color:#f59e0b}.progress-bar{width:140px;height:8px;background:#ffffff1a;border-radius:var(--radius-sm);overflow:hidden;position:relative}.progress-fill{height:100%;background:var(--gradient-primary);border-radius:var(--radius-sm);transition:width .8s ease;position:relative}.progress-text{position:absolute;top:-22px;right:0;color:var(--text-secondary);font-weight:600;font-size:.8rem}.unlock-badge{position:absolute;top:var(--space-sm);right:var(--space-sm);width:32px;height:32px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem;box-shadow:var(--shadow-lg)}.achievement-loading,.achievement-error{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;text-align:center;padding:var(--space-2xl)}.loading-spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.1);border-left:4px solid var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:var(--space-lg)}.achievement-error{color:var(--text-secondary)}.achievement-error p:first-child{color:#ff6b6b;font-weight:600;margin-bottom:var(--space-sm)}.achievement-notification{position:fixed;top:var(--space-xl);right:var(--space-xl);background:var(--card-bg-glass);-webkit-backdrop-filter:blur(25px);backdrop-filter:blur(25px);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-lg);box-shadow:var(--shadow-2xl);z-index:1000;max-width:400px;display:flex;align-items:center;gap:var(--space-md)}.notification-content h4{margin:0 0 var(--space-xs) 0;color:var(--text-color);font-weight:700}.notification-content p{margin:0;color:var(--text-secondary);font-size:.9rem}.notification-close{background:none;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;padding:var(--space-xs);border-radius:var(--radius-sm);transition:all var(--transition-normal)}.notification-close:hover{background:#ffffff1a;color:var(--text-color)}@media (max-width: 1200px){.category-achievements{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}}@media (max-width: 768px){.achievement-system,.achievement-header{padding:var(--space-lg)}.header-content{flex-direction:column;text-align:center;gap:var(--space-md)}.header-content h1{font-size:2.2rem}.progress-overview{flex-direction:column;gap:var(--space-md)}.category-achievements{grid-template-columns:1fr}.achievement-card{padding:var(--space-lg);min-height:120px}.achievement-icon{width:60px;height:60px;font-size:2rem}.achievement-title{font-size:1.2rem}.progress-bar{width:100px}}@media (max-width: 480px){.achievement-system,.achievement-header{padding:var(--space-md)}.header-content h1{font-size:1.8rem}.achievement-card{padding:var(--space-md);flex-direction:column;text-align:center;gap:var(--space-md)}.achievement-icon{width:50px;height:50px;font-size:1.8rem;align-self:center}.achievement-meta{justify-content:center;flex-wrap:wrap}.filter-controls{flex-wrap:wrap}.filter-btn{flex:1;min-width:80px}.notification-content{flex-direction:column;text-align:center}}.friends-system{max-width:1200px;margin:0 auto;padding:20px;background:var(--card-bg);border-radius:15px;box-shadow:0 4px 20px #0000001a}.friends-header{text-align:center;margin-bottom:30px}.friends-header h2{color:var(--text-primary);margin-bottom:10px;font-size:2em}.friends-header p{color:var(--text-secondary);font-size:1.1em}.friends-tabs{display:flex;justify-content:center;margin-bottom:30px;gap:10px;padding:0 5px;flex-wrap:wrap}.tab-button{background:none;border:2px solid var(--border-color);padding:12px 20px;cursor:pointer;color:var(--text-secondary);font-weight:500;border-radius:25px;transition:all .3s 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ease}.friend-card:hover{border-color:var(--primary-color);transform:translateY(-2px)}.friend-avatar{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.2em}.friend-info{flex:1}.friend-info h4{margin:0 0 5px;color:var(--text-primary);font-size:1.1em}.friend-level{color:var(--text-secondary);font-size:.9em;margin:0 0 8px}.friend-status{display:flex;align-items:center;gap:6px;font-size:.85em;color:var(--text-secondary)}.status-indicator{width:8px;height:8px;border-radius:50%;display:inline-block}.status-indicator.online{background:#2ed573;box-shadow:0 0 6px #2ed57380}.status-indicator.offline{background:#a4b0be}.friend-actions{display:flex;gap:.5rem;position:absolute;top:10px;right:10px;z-index:2}.remove-friend-btn{position:static;background:#ff4757;color:#fff;border:none;border-radius:50%;width:24px;height:24px;cursor:pointer;font-size:14px;opacity:0;transition:all .3s ease}.friend-card:hover .remove-friend-btn{opacity:1}.remove-friend-btn:hover{background:#ff3742;transform:scale(1.1)}.block-user-btn{position:static;background:#ff6b6b;color:#fff;border:none;border-radius:8px;padding:4px 8px;cursor:pointer;font-size:10px;opacity:0;transition:all .3s ease;font-weight:500}.friend-card:hover .block-user-btn{opacity:1}.block-user-btn:hover{background:#ff5252;transform:scale(1.05)}.unblock-user-btn{background:#5dade2;color:#fff;border:none;border-radius:20px;padding:8px 16px;cursor:pointer;font-size:12px;transition:all .3s ease;font-weight:500;margin-top:8px}.unblock-user-btn:hover{background:#3498db;transform:translateY(-1px)}.blocked-users-section{padding:20px}.blocked-users-section h3{color:var(--text-primary);margin:0 0 20px;font-size:1.3em;display:flex;align-items:center;gap:10px}.blocked-users-section h3:before{content:"🚫";font-size:1.2em}.blocked-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:20px}.blocked-user-card{background:linear-gradient(135deg,#ff6b6b,#ee5a52);padding:20px;border-radius:15px;text-align:center;color:#fff;box-shadow:0 4px 15px #ee5a524d;transition:all .3s ease;position:relative;overflow:hidden}.blocked-user-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,rgba(255,255,255,.1) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.1) 50%,rgba(255,255,255,.1) 75%,transparent 75%);background-size:20px 20px;opacity:0;transition:opacity .3s ease}.blocked-user-card:hover:before{opacity:1}.blocked-user-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px #ee5a5266}.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:40px 20px;color:var(--text-secondary)}.no-blocked-users p{font-size:1.1em;margin:10px 0}.no-blocked-users .emoji{font-size:3em;margin-bottom:10px;display:block}.requests-section h3{color:var(--text-primary);margin:0 0 15px;font-size:1.2em}.requests-list{margin-bottom:30px}.request-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:10px;padding:15px;display:flex;align-items:center;gap:15px;margin-bottom:10px;transition:all .3s ease}.request-card:hover{border-color:var(--primary-color);box-shadow:0 4px 15px 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.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:#fff3!important;border-color:#ffffff4d!important;transform:translateY(-2px)!important;box-shadow:0 4px 15px #0000001a!important;scale:none!important;rotate:none!important}:root{--gamification-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gamification-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--gamification-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--gamification-success: linear-gradient(135deg, #43e97b 0%, #38f9d7 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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:#fff}.create-sample-btn{background:var(--gamification-success)}.create-sample-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px #43e97b66}.cleanup-btn{background:var(--gamification-error)}.cleanup-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px #ff572266}.challenges-container{display:flex;flex-direction:column;gap:1.5rem;max-height:600px;min-height:400px;overflow-y:auto;overflow-x:hidden;padding-right:.5rem;padding-bottom:1rem;-webkit-overflow-scrolling:touch;scroll-behavior:smooth;position:relative;height:auto;contain:layout 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shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.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:#fff;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}.completed-section{flex:1}.completed-btn{background:var(--gamification-success);color:#fff;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:0 2px 8px #00000026}.status-available{background:linear-gradient(135deg,#43e97b,#38f9d7);color:#fff;animation:availablePulse 2s infinite}.status-reset{background:linear-gradient(135deg,#ffa726,#fb8c00);color:#fff;animation:resetGlow 1.5s infinite alternate}.status-progress{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#fff;animation:progressPulse 1.5s 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rgba(255,167,38,.2);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.reset-continue{background:linear-gradient(135deg,#ffa726,#fb8c00);box-shadow:0 4px 15px #ffa72666;transform:none;animation:resetButtonGlow 2s infinite alternate}@keyframes resetButtonGlow{0%{box-shadow:0 4px 15px #ffa72666}to{box-shadow:0 6px 25px #ffa72699}}.not-available{text-align:center;padding:1.5rem;background:#ffffff0d;border-radius:12px;border:1px dashed rgba(255,255,255,.2)}.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:#667eea1a;border-radius:8px;border:1px solid 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#0003}.progress-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2,#f093fb);border-radius:10px;transition:width .6s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.progress-fill:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shimmer 2s infinite}.question-container{margin-bottom:2rem}.question-text{color:var(--text-primary);font-size:1.2rem;font-weight:600;line-height:1.5;margin:0 0 2rem;padding:1.5rem;background:linear-gradient(135deg,var(--gamification-glass),rgba(255,255,255,.03));border-radius:15px;border:1px solid var(--gamification-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);word-wrap:break-word;-webkit-hyphens:auto;hyphens:auto}.options-container{display:grid;gap:1rem;grid-template-columns:1fr}.option-btn{display:flex;align-items:center;gap:1rem;padding:1rem 1.2rem;background:var(--hover-bg);border:2px solid 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