@import"https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;500;600;700&display=swap";@import"https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap";@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap";:root{--primary-50: #e8f4fc;--primary-100: #b8def4;--primary-200: #88c8ed;--primary-300: #58b2e5;--primary-400: #289cde;--primary-500: #0d7dc4;--primary-600: #0a6199;--primary-700: #08456e;--primary-800: #052a44;--primary-900: #020e19;--accent-50: #e6f7ef;--accent-100: #b3e6ce;--accent-200: #80d5ae;--accent-300: #4dc48d;--accent-400: #1ab36d;--accent-500: #00a054;--accent-600: #008042;--accent-700: #006031;--accent-800: #004020;--accent-900: #002010;--warning-500: #f59e0b;--error-500: #ef4444;--success-500: #10b981;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--bg-card: rgba(30, 41, 59, .8);--bg-glass: rgba(255, 255, 255, .05);--bg-glass-hover: rgba(255, 255, 255, .1);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--gradient-primary: linear-gradient(135deg, #0d7dc4 0%, #00a054 100%);--gradient-accent: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-dark: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);--gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, .1) 0%, rgba(255, 255, 255, .05) 100%);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .35), 0 4px 6px -4px rgba(0, 0, 0, .35);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .4), 0 8px 10px -6px rgba(0, 0, 0, .4);--shadow-glow: 0 0 40px rgba(13, 125, 196, .3);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 24px;--radius-xl: 32px;--radius-full: 9999px;--font-primary: "Lexend", sans-serif;--font-display: "Lexend", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--transition-fast: .15s ease;--transition-normal: .3s ease;--transition-slow: .5s ease;--container-sm: 640px;--container-md: 768px;--container-lg: 1024px;--container-xl: 1280px;--accent-primary: #38bdf8;--accent-secondary: #818cf8;--border-color: rgba(255, 255, 255, .1)}[data-theme=light]{--bg-primary: #f0f4f8;--bg-secondary: #ffffff;--bg-tertiary: #e6e6fa;--bg-header: #f6f4f8;--bg-card: #ffffff;--bg-glass: rgba(255, 255, 255, .9);--bg-glass-hover: #ffffff;--text-primary: #4a5568;--text-secondary: #718096;--text-muted: #a0aec0;--accent-primary: #8ebdc4;--accent-secondary: #4a5568;--accent-pink: #fadadd;--accent-purple: #e6e6fa;--accent-soft: #f8fafc;--success-500: #d1fae5;--shadow-sm: 0 4px 12px rgba(209, 217, 230, .2);--shadow-md: 0 8px 16px rgba(209, 217, 230, .3);--shadow-lg: 0 12px 30px rgba(209, 217, 230, .4);--shadow-float: 0 15px 35px rgba(230, 230, 250, .6)}[data-theme=light] body{background:var(--bg-primary);color:var(--text-primary)}[data-theme=light] .navbar{background:var(--bg-header);color:var(--text-primary);border-bottom:1px solid rgba(230,230,250,.4);box-shadow:0 4px 20px #e6e6fa33}.theme-switch{position:relative;width:52px;height:26px;background:#6366f1;border-radius:20px;cursor:pointer;padding:3px;transition:all .4s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;box-shadow:0 2px 10px #6366f14d}[data-theme=dark] .theme-switch{background:#4f46e5}.theme-switch-slider{width:22px;height:22px;background:#fff;border-radius:50%;transition:all .4s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #0000001a;z-index:2}[data-theme=dark] .theme-switch-slider{transform:translate(26px);background:#fff}.theme-switch-icon{font-size:13px;line-height:1;display:flex;align-items:center;justify-content:center}[data-theme=light] .navbar-brand{display:flex;align-items:center;gap:12px}[data-theme=light] .navbar-title{font-weight:700;font-size:1.3rem;color:#fff!important;letter-spacing:-.02em}[data-theme=light] .navbar-logo svg,[data-theme=light] .nav-link,[data-theme=light] .navbar-title,[data-theme=light] .user-menu .nav-link{color:var(--text-primary)!important}[data-theme=dark] .navbar-title{color:#fff!important}[data-theme=light] .glass-card,[data-theme=light] .card{background:#ffffffd9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.8);border-radius:16px;box-shadow:var(--shadow-float)}[data-theme=light] .question-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;box-shadow:var(--shadow-sm);transition:all .3s ease}[data-theme=light] .question-card:hover{box-shadow:var(--shadow-md)}[data-theme=light] .form-input{background:#ffffffe6;border:2px solid #d1d5db;color:var(--text-primary);border-radius:12px}[data-theme=light] .form-input:focus{border-color:var(--accent-yellow);box-shadow:0 0 0 3px #f59e0b26}[data-theme=light] .btn-secondary{background:#ffffffe6;border:1px solid rgba(0,0,0,.1);color:var(--text-primary);box-shadow:var(--shadow-sm)}[data-theme=light] .btn-primary{background:var(--accent-primary);color:#fff!important;border:none;box-shadow:0 4px 15px #8ebdc44d}[data-theme=light] .btn-primary:hover{background:var(--accent-secondary);transform:translateY(-1px)}[data-theme=light] .tag{background:#fffc;border:1px solid rgba(0,0,0,.08);color:var(--text-secondary);box-shadow:var(--shadow-sm)}[data-theme=light] .tag-primary{background:#3b82f626;color:#2563eb;border-color:#3b82f64d}[data-theme=light] .tag-warning{background:#f59e0b26;color:#d97706;border-color:#f59e0b4d}[data-theme=light] .tag-danger{background:#ec489926;color:#db2777;border-color:#ec48994d}[data-theme=light] .selection-card{background:#fff;border:1px solid #e2e8f0;box-shadow:var(--shadow-sm);border-radius:12px;transition:all .2s ease}[data-theme=light] .selection-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--accent-primary)}[data-theme=light] .theme-toggle-btn{background:#ffffffe6;border:1px solid rgba(0,0,0,.1);color:var(--text-primary);box-shadow:var(--shadow-sm)}[data-theme=light] .filter-select{background:#fffffff2;border:2px solid #f59e0b;border-radius:12px;padding:12px 48px 12px 16px;font-size:.95rem;color:var(--text-primary);box-shadow:var(--shadow-sm);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23333' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;min-width:150px}[data-theme=light] .reference-box{background:linear-gradient(135deg,#1e3a5f,#2d4a6f);color:#fff;border-radius:12px;padding:16px 20px}[data-theme=light] .reference-box .label{color:#ffffffb3;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}[data-theme=light] .reference-box .value{color:#60a5fa;font-weight:500}[data-theme=light] .sample-answer-box{background:#ffffffe6;border-left:4px solid #3b82f6;border-radius:12px;padding:20px;box-shadow:var(--shadow-md)}[data-theme=light] .sample-answer-box h4{color:#2563eb;margin-bottom:8px}[data-theme=light] .sample-answer-box p{color:#60a5fa;font-style:italic}[data-theme=light] .reveal-btn{background:var(--accent-pink);color:var(--text-primary);border:1px solid rgba(244,172,212,.2);box-shadow:0 4px 12px #f4bad926}[data-theme=light] .reveal-btn:hover{filter:brightness(.95)}[data-theme=light] .reveal-btn:hover{background:linear-gradient(135deg,#fbcfe8,#ddd6fe);box-shadow:0 12px 30px #8b5cf626}[data-theme=dark]{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-card: #1e293b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-primary: #38bdf8}[data-theme=dark] .question-card{background:#1e293b!important;border:1px solid rgba(255,255,255,.1)!important;box-shadow:0 4px 6px #0003!important}[data-theme=dark] .question-card-inner{background:#0f172a66!important;color:var(--text-primary)!important}[data-theme=dark] .reference-box{background:#1e293bcc!important;border:1px solid rgba(255,255,255,.1)}[data-theme=dark] .answer-section-container{background:#0d94880d!important;border-top:1px solid rgba(255,255,255,.05)!important}[data-theme=dark] .reveal-btn.active{background:#ffffff0d!important;color:var(--text-secondary)!important}[data-theme=light] .bookmark-btn{color:var(--text-muted);background:transparent;border:none;padding:8px;cursor:pointer}[data-theme=light] .bookmark-btn:hover{color:var(--accent-pink)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-primary);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;letter-spacing:-.01em;font-size:14px;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}@media print{body{display:none!important}}[data-theme=light] body:before{content:"";position:fixed;inset:0;background:radial-gradient(ellipse at top right,rgba(184,91,163,.08),transparent 50%),radial-gradient(ellipse at bottom left,rgba(157,102,209,.05),transparent 50%);pointer-events:none;z-index:-1}#root{min-height:100vh;display:flex;flex-direction:column}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font-family:inherit;font-size:inherit}img{max-width:100%;height:auto}ul,ol{list-style:none}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:600;line-height:1.3}h1{font-size:24px;font-weight:700;color:var(--text-primary);margin-bottom:1rem}h2{font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:.75rem}h3{font-size:16px;font-weight:600;color:var(--text-secondary);margin-bottom:.5rem}h6{font-size:1rem}[data-theme=light] .breadcrumb{display:flex;align-items:center;gap:var(--space-2);font-size:.9rem;color:var(--text-muted)}[data-theme=light] .breadcrumb-link{color:var(--accent-primary);font-weight:600;transition:color .2s ease}[data-theme=light] .breadcrumb-link:hover{color:var(--accent-secondary)}[data-theme=light] .breadcrumb-separator{color:var(--text-muted);opacity:.8;font-weight:700}.container{width:100%;max-width:var(--container-xl);margin:0 auto;padding:0 var(--space-6)}.page{min-height:100vh;padding-top:80px}.section{padding:var(--space-16) 0}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.glass-card{background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:var(--space-6);transition:all var(--transition-normal)}.glass-card:hover{background:var(--bg-glass-hover);border-color:#ffffff26;transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-weight:500;font-size:.95rem;border-radius:var(--radius-md);transition:all var(--transition-fast);white-space:nowrap}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 4px 14px #0d7dc466}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0d7dc480}.btn-secondary{background:var(--bg-glass);color:var(--text-primary);border:1px solid rgba(255,255,255,.2)}.btn-secondary:hover{background:var(--bg-glass-hover);border-color:#ffffff4d}.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}.btn-danger:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ef444466}.btn-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff}.btn-success:hover{transform:translateY(-2px);box-shadow:0 6px 20px #10b98166}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-glass);color:var(--text-primary)}.btn-lg{padding:var(--space-4) var(--space-8);font-size:1.05rem}.btn-sm{padding:var(--space-2) var(--space-4);font-size:.875rem}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--radius-md)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.navbar-logo{width:36px;height:36px;background:var(--bg-primary);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-right:0;box-shadow:0 4px 12px #8ebdc426;border:1px solid rgba(230,230,250,.4)}.navbar-title{font-size:1.25rem;font-weight:800;letter-spacing:-.03em;color:var(--text-primary)}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-label{font-size:.875rem;font-weight:500;color:var(--text-secondary)}.form-input{width:100%;padding:var(--space-3) var(--space-4);background:var(--bg-glass);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);color:var(--text-primary);font-size:.95rem;transition:all var(--transition-fast)}.form-input:focus{outline:none;border-color:var(--primary-500);box-shadow:0 0 0 3px #0d7dc433}.form-input::placeholder{color:var(--text-muted)}.form-textarea{resize:vertical;min-height:100px}.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:20px;padding-right:40px}.form-select option{background-color:var(--bg-secondary);color:var(--text-primary)}.form-error{color:var(--error-500);font-size:.8rem;margin-top:var(--space-1)}.tag{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);background:var(--bg-glass);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-full);font-size:.75rem;font-weight:500;color:var(--text-secondary);transition:all var(--transition-fast)}.tag:hover{background:var(--bg-glass-hover)}.tag-primary{background:#0d7dc433;border-color:#0d7dc44d;color:var(--primary-300)}.tag-success{background:#10b98133;border-color:#10b9814d;color:var(--accent-300)}.tag-warning{background:#f59e0b33;border-color:#f59e0b4d;color:#fbbf24}.tag-danger{background:#ef444433;border-color:#ef44444d;color:#f87171}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 var(--space-2);background:var(--primary-500);border-radius:var(--radius-full);font-size:.7rem;font-weight:600;color:#fff}.card{background:var(--bg-card);border:1px solid rgba(230,230,250,.4);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md)}[data-theme=light] .card-header{padding:var(--space-4) var(--space-6);border-bottom:1px solid rgba(230,230,250,.4);background:var(--bg-header);color:var(--text-primary)}.card-body{padding:var(--space-6)}.card-footer{padding:var(--space-4) var(--space-6);border-top:1px solid rgba(255,255,255,.1);background:#0003}.selection-card{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-8);background:#fff;border:1px solid rgba(230,230,250,.5);border-radius:var(--radius-xl);cursor:pointer;transition:all .4s cubic-bezier(.4,0,.2,1);text-align:center;box-shadow:var(--shadow-sm)}[data-theme=light] .selection-card:hover{background:#fff;transform:translateY(-8px);box-shadow:0 20px 40px #e6e6fa66}[data-theme=light] .selection-card.selected{border-color:var(--accent-primary);background:#fff;box-shadow:0 10px 30px #8ebdc433}[data-theme=light] .selection-card-icon{background:var(--bg-primary);color:var(--accent-primary);border-radius:var(--radius-md);box-shadow:inset 0 2px 4px #d1d9e633}.selection-card-title{font-size:1.1rem;font-weight:600;margin-bottom:var(--space-2)}.selection-card-desc{font-size:.85rem;color:var(--text-secondary)}.modal-overlay{position:fixed;inset:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-4);animation:fadeIn .2s ease}.modal{width:100%;max-width:500px;max-height:90vh;overflow-y:auto;background:var(--bg-secondary);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);animation:slideUp .3s ease}[data-theme=light] .modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-6);border-bottom:1px solid rgba(230,230,250,.4);background:var(--bg-header);color:var(--text-primary)}.modal-title{font-size:1.25rem;font-weight:600}.modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition-fast)}.modal-close:hover{background:var(--bg-glass);color:var(--text-primary)}.modal-body{padding:var(--space-6)}.modal-footer{display:flex;gap:var(--space-3);justify-content:flex-end;padding:var(--space-4) var(--space-6);border-top:1px solid rgba(255,255,255,.1)}.table-container{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.1)}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:var(--space-3) var(--space-4);text-align:left;border-bottom:1px solid rgba(255,255,255,.05)}.table th{background:#0000004d;font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary)}.table tr:hover td{background:var(--bg-glass)}.table-actions{display:flex;gap:var(--space-2)}.spinner{width:6px;height:24px;background:var(--accent-primary, #38bdf8);animation:waveform 1s infinite ease-in-out;animation-delay:-.16s;position:relative;border:none!important;margin:0 12px}.spinner:before,.spinner:after{content:"";position:absolute;top:0;width:6px;height:24px;background:var(--accent-primary, #38bdf8);animation:waveform 1s infinite ease-in-out}.spinner:before{left:-12px;animation-delay:-.32s}.spinner:after{left:12px}@keyframes waveform{0%,80%,to{transform:scaleY(.4)}40%{transform:scaleY(1)}}[data-theme=light] .spinner,[data-theme=light] .spinner:before,[data-theme=light] .spinner:after{background:var(--accent-primary);border-color:transparent}.spinner-sm{width:3px;height:14px;margin:0 8px}.spinner-sm:before,.spinner-sm:after{width:3px;height:14px}.spinner-sm:before{left:-8px}.spinner-sm:after{left:8px}.loading-overlay{position:fixed;inset:0;background:#0f172ae6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-4);z-index:9999}.loading-text{color:var(--text-secondary);font-size:.9rem}.alert{padding:var(--space-4);border-radius:var(--radius-md);display:flex;align-items:flex-start;gap:var(--space-3)}.alert-info{background:#0d7dc426;border:1px solid rgba(13,125,196,.3)}.alert-success{background:#10b98126;border:1px solid rgba(16,185,129,.3)}.alert-warning{background:#f59e0b26;border:1px solid rgba(245,158,11,.3)}.alert-error{background:#ef444426;border:1px solid rgba(239,68,68,.3)}.question-card{background:var(--bg-card);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);margin-bottom:var(--space-4);overflow:hidden}.question-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-6);background:#0003;border-bottom:1px solid rgba(255,255,255,.05)}.question-number{display:flex;align-items:center;gap:var(--space-3)}.question-num-badge{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--gradient-primary);border-radius:var(--radius-md);font-weight:700;font-size:.9rem}.question-meta{display:flex;align-items:center;gap:var(--space-2);color:var(--text-secondary);font-size:.85rem}.question-body{padding:var(--space-6)}.question-text{font-size:1.05rem;line-height:1.7;margin-bottom:var(--space-4)}.question-tags{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-4)}.answer-section{margin-top:var(--space-6);padding-top:var(--space-4);border-top:1px solid rgba(255,255,255,.1)}.answer-toggle{display:flex;align-items:center;gap:var(--space-2);color:var(--accent-400);font-weight:500;cursor:pointer;margin-bottom:var(--space-3)}.answer-content{padding:var(--space-4);background:#00a0541a;border-radius:var(--radius-md);border-left:3px solid var(--accent-500);line-height:1.7}.highlight-term{color:#ec4899;font-weight:500;background:#ec489926;padding:1px 6px;border-radius:4px}[data-theme=light] .highlight-term{color:#db2777;background:#ec48991f}@keyframes slideDown{0%{opacity:0;max-height:0;transform:translateY(-10px)}to{opacity:1;max-height:2000px;transform:translateY(0)}}.navbar{position:fixed;top:0;left:0;right:0;height:70px;background:#0f172af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.1);z-index:100}.navbar-container{height:100%;display:flex;align-items:center;justify-content:space-between;max-width:100%;margin:0 auto;padding:0 var(--space-6)}.navbar-brand{display:flex;align-items:center;gap:var(--space-3)}.navbar-logo{width:40px;height:40px;background:var(--gradient-primary);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}.navbar-title{font-family:var(--font-display);font-size:1.3rem;font-weight:700}.navbar-nav{display:flex;align-items:center;gap:var(--space-4)}.nav-link{padding:var(--space-2) var(--space-4);color:var(--text-secondary);font-weight:500;transition:color var(--transition-fast)}.nav-link:hover,.nav-link.active{color:var(--text-primary)}.user-menu{display:flex;align-items:center;gap:var(--space-3)}.user-avatar{width:36px;height:36px;border-radius:var(--radius-full);border:2px solid rgba(255,255,255,.2)}.admin-layout{display:flex;min-height:100vh;padding-top:70px}.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid rgba(255,255,255,.1);position:fixed;top:70px;left:0;bottom:0;overflow-y:auto;padding:var(--space-4)}.sidebar-nav{display:flex;flex-direction:column;gap:var(--space-1)}.sidebar-link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);color:var(--text-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast)}.sidebar-link:hover{background:var(--bg-glass);color:var(--text-primary)}.sidebar-link.active{background:#0d7dc433;color:var(--primary-400)}.sidebar-link-icon{width:20px;height:20px;flex-shrink:0}.main-content{flex:1;margin-left:260px;padding:var(--space-6)}.carousel{position:relative;border-radius:var(--radius-xl);overflow:hidden}.carousel-slide{display:none;animation:fadeIn .5s ease}.carousel-slide.active{display:block}.carousel-image{width:100%;height:400px;object-fit:cover}.carousel-overlay{position:absolute;bottom:0;left:0;right:0;padding:var(--space-8);background:linear-gradient(to top,rgba(0,0,0,.8),transparent)}.carousel-controls{position:absolute;top:50%;left:0;right:0;display:flex;justify-content:space-between;padding:0 var(--space-4);transform:translateY(-50%)}.carousel-btn{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:#00000080;border-radius:var(--radius-full);color:#fff;transition:all var(--transition-fast)}.carousel-btn:hover{background:var(--primary-500)}.carousel-dots{position:absolute;bottom:var(--space-4);left:50%;transform:translate(-50%);display:flex;gap:var(--space-2)}.carousel-indicators{display:flex;justify-content:center;gap:var(--space-2);padding:var(--space-4) 0}.carousel-dot{width:10px;height:10px;border-radius:50%;background:#fff6;border:none;cursor:pointer;transition:all var(--transition-fast);padding:0}.carousel-dot.active{background:#fff;width:24px;border-radius:5px}[data-theme=light] .carousel-dot{background:#b85ba34d}[data-theme=light] .carousel-dot.active{background:#b85ba3}.section-title{font-size:2rem;font-weight:700;margin-bottom:var(--space-3);color:var(--text-primary)}.section-subtitle{color:var(--text-secondary);font-size:1.1rem;max-width:600px;margin:0 auto}.page-header{margin-bottom:var(--space-8)}.page-title{font-size:2.25rem;font-weight:700;margin-bottom:var(--space-2);color:var(--text-primary)}.page-subtitle{color:var(--text-secondary);font-size:1.05rem}.breadcrumb{display:flex;align-items:center;gap:var(--space-2);margin-bottom:var(--space-4);font-size:.9rem;color:var(--text-muted)}.breadcrumb-separator{color:var(--text-muted)}.breadcrumb-link{color:var(--text-secondary);transition:color var(--transition-fast)}.breadcrumb-link:hover{color:var(--primary-400)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-16);text-align:center}.empty-state-icon{width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:var(--bg-glass);border-radius:var(--radius-full);margin-bottom:var(--space-6);font-size:2rem;color:var(--text-muted)}.empty-state-title{font-size:1.25rem;font-weight:600;margin-bottom:var(--space-2)}.empty-state-text{color:var(--text-secondary);margin-bottom:var(--space-6)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-4)}.stat-card{padding:var(--space-6);background:var(--bg-glass);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg)}.stat-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--gradient-primary);border-radius:var(--radius-md);margin-bottom:var(--space-4);font-size:1.25rem}.stat-value{font-size:2rem;font-weight:700;margin-bottom:var(--space-1)}.stat-label{color:var(--text-secondary);font-size:.9rem}.filter-bar{display:flex;flex-wrap:wrap;gap:var(--space-3);padding:var(--space-4);background:var(--bg-glass);border-radius:var(--radius-lg);margin-bottom:var(--space-6)}.filter-group{display:flex;flex-wrap:wrap;gap:var(--space-2)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-gradient{background:linear-gradient(135deg,#b85ba3,#9d66d1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;color:#b85ba3}.highlight-term{background:#fadaddcc;padding:0 4px;border-radius:4px;font-weight:500;color:#d81b60}.text-success{color:var(--success-500)}.text-warning{color:var(--warning-500)}.text-error{color:var(--error-500)}.mt-2{margin-top:var(--space-2)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mt-8{margin-top:var(--space-8)}.mb-2{margin-bottom:var(--space-2)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.mb-8{margin-bottom:var(--space-8)}.p-4{padding:var(--space-4)}.p-6{padding:var(--space-6)}.p-8{padding:var(--space-8)}.w-full{width:100%}.hidden{display:none}.block{display:block}.relative{position:relative}.absolute{position:absolute}.overflow-hidden{overflow:hidden}.overflow-auto{overflow:auto}.grid{display:grid}.features-grid{display:grid;grid-template-columns:repeat(1,1fr);gap:var(--space-6)}@media(min-width:768px){.features-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.features-grid{grid-template-columns:repeat(4,1fr)}}.grid-2,.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4,.md-grid-cols-4{grid-template-columns:repeat(4,1fr)}.carousel-content{border-radius:var(--radius-xl);overflow:hidden;height:100%;width:100%}.ring-2{box-shadow:0 0 0 2px var(--accent-primary, #38bdf8)}.ring-primary-500{box-shadow:0 0 0 2px var(--primary-500, #0d7dc4)}@media(max-width:1024px){.sidebar{transform:translate(-100%);transition:transform var(--transition-normal)}.sidebar.open{transform:translate(0)}.main-content{margin-left:0}.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){h1{font-size:1.75rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.container{padding:0 var(--space-3)}.page{padding-top:70px}.navbar-nav{display:none}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.selection-card{padding:var(--space-6)}.modal{margin:var(--space-4)}.stats-grid{grid-template-columns:1fr}.filter-bar{flex-direction:column}.carousel-image{height:250px}}@media(max-width:480px){.btn{padding:var(--space-2) var(--space-4);font-size:.9rem}.btn-lg{padding:var(--space-3) var(--space-6)}.question-body{padding:var(--space-4)}.question-header{padding:var(--space-3) var(--space-4);flex-direction:column;align-items:flex-start;gap:var(--space-2)}}@media print{.navbar,.sidebar,.btn,.filter-bar{display:none!important}.main-content{margin-left:0}body{background:#fff;color:#000}}