@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap";@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root,[data-color=purple]{--color-primary-base: #8B5CF6;--color-primary-dark: #7C3AED;--color-primary-darker: #6d28d9;--color-primary-light: rgba(139, 92, 246, .15);--color-primary-glow: rgba(139, 92, 246, .4)}[data-color=blue]{--color-primary-base: #3b82f6;--color-primary-dark: #2563eb;--color-primary-darker: #1d4ed8;--color-primary-light: rgba(59, 130, 246, .15);--color-primary-glow: rgba(59, 130, 246, .4)}[data-color=green]{--color-primary-base: #22c55e;--color-primary-dark: #16a34a;--color-primary-darker: #15803d;--color-primary-light: rgba(34, 197, 94, .15);--color-primary-glow: rgba(34, 197, 94, .4)}:root,html.dark,[data-theme=dark]{--bg-primary: #0a0a0a;--bg-secondary: #141414;--bg-tertiary: #1f1f1f;--bg-card: #141414;--bg-card-hover: #1f1f1f;--bg-input: #0f0f0f;--color-background: #0a0a0a;--color-surface: #141414;--color-surface-hover: #1f1f1f;--color-border: #262626;--text-primary: #e4e4e7;--text-secondary: #a1a1aa;--text-tertiary: #71717a;--text-muted: #52525b;--color-text: #e4e4e7;--color-text-secondary: #a1a1aa;--color-text-tertiary: #71717a;--accent-primary: var(--color-primary-dark);--accent-primary-hover: var(--color-primary-base);--accent-secondary: #06b6d4;--accent-secondary-hover: #22d3ee;--accent-success: #22C55E;--accent-warning: #F59E0B;--accent-error: #EF4444;--color-primary: var(--color-primary-dark);--color-primary-hover: var(--color-primary-base);--color-primary-light: var(--color-primary-light);--color-success: #22C55E;--color-warning: #F59E0B;--color-danger: #EF4444;--color-info: var(--color-primary-dark);--gradient-primary: linear-gradient(135deg, var(--color-primary-base) 0%, var(--color-primary-dark) 100%);--gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #22C55E 100%);--gradient-success: linear-gradient(135deg, #22C55E 0%, #06b6d4 100%);--gradient-danger: linear-gradient(135deg, #EF4444 0%, #F59E0B 100%);--glow-primary: 0 0 20px var(--color-primary-glow);--glow-secondary: 0 0 20px rgba(6, 182, 212, .3);--glow-success: 0 0 20px rgba(34, 197, 94, .3);--glow-error: 0 0 20px rgba(239, 68, 68, .3);--shadow-glow: 0 0 20px var(--color-primary-glow);--border-color: #262626;--border-color-hover: #353545;--border-accent: var(--color-primary-dark);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .5);--shadow-md: 0 4px 12px rgba(0, 0, 0, .6);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .7);--shadow-xl: 0 16px 32px rgba(0, 0, 0, .8);--bg-exam: #1a1a1a}html.light,[data-theme=light]{--bg-primary: #f8fafc;--bg-secondary: #f1f5f9;--bg-tertiary: #e2e8f0;--bg-card: #ffffff;--bg-card-hover: #f8fafc;--bg-input: #ffffff;--color-background: #f8fafc;--color-surface: #ffffff;--color-surface-hover: #f1f5f9;--color-border: #cbd5e1;--text-primary: #0f172a;--text-secondary: #475569;--text-tertiary: #94a3b8;--text-muted: #cbd5e1;--color-text: #0f172a;--color-text-secondary: #475569;--color-text-tertiary: #94a3b8;--accent-primary: var(--color-primary-dark);--accent-primary-hover: var(--color-primary-darker);--accent-secondary: #0891b2;--accent-secondary-hover: #0e7490;--accent-success: #059669;--accent-warning: #d97706;--accent-error: #dc2626;--color-primary: var(--color-primary-dark);--color-primary-hover: var(--color-primary-darker);--color-primary-light: var(--color-primary-light);--color-success: #059669;--color-warning: #d97706;--color-danger: #dc2626;--color-info: var(--color-primary-dark);--gradient-primary: linear-gradient(135deg, var(--color-primary-base) 0%, var(--color-primary-dark) 100%);--gradient-secondary: linear-gradient(135deg, #0891b2 0%, #059669 100%);--gradient-success: linear-gradient(135deg, #059669 0%, #0891b2 100%);--gradient-danger: linear-gradient(135deg, #dc2626 0%, #d97706 100%);--glow-primary: 0 2px 8px var(--color-primary-glow);--glow-secondary: 0 2px 8px rgba(8, 145, 178, .12);--glow-success: 0 2px 8px rgba(5, 150, 105, .12);--glow-error: 0 2px 8px rgba(220, 38, 38, .12);--shadow-glow: 0 2px 8px var(--color-primary-glow);--border-color: #cbd5e1;--border-color-hover: #94a3b8;--border-accent: var(--color-primary-dark);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .12);--shadow-lg: 0 12px 28px rgba(0, 0, 0, .18);--shadow-xl: 0 20px 40px rgba(0, 0, 0, .22);--bg-exam: #e8e8e8}:root{--spacing-xs: .5rem;--spacing-sm: .75rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .5rem;--radius-md: .75rem;--radius-lg: 1rem;--radius-xl: 1.5rem;--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .35s ease}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box;min-width:0}img,video,svg,iframe{max-width:100%;height:auto}html{font-size:16px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;margin-bottom:var(--spacing-md);color:var(--text-primary)}h1{font-size:2.5rem;letter-spacing:-.02em}h2{font-size:2rem;letter-spacing:-.01em}p{margin-bottom:var(--spacing-md);color:var(--text-secondary)}a{color:var(--accent-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-primary-hover)}code,pre{font-family:JetBrains Mono,monospace;background-color:var(--bg-tertiary);padding:.2em .4em;border-radius:var(--radius-sm);font-size:.9em}pre{padding:var(--spacing-md);overflow-x:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.5rem 1rem;font-size:.85rem;font-weight:600;font-family:inherit;border:none;border-radius:8px;cursor:pointer;transition:all .2s ease;text-decoration:none;-webkit-user-select:none;user-select:none;color:var(--text-primary)}.btn:disabled{opacity:.5;cursor:not-allowed}a.btn{color:var(--text-primary)}a.btn-primary,a.btn.btn-primary,a.btn-success,a.btn.btn-success,a.btn-danger,a.btn.btn-danger,a.btn-warning,a.btn.btn-warning{color:#fff}.btn-primary{background:var(--gradient-primary);color:#fff;border-radius:10px;box-shadow:0 4px 12px #8b5cf64d}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #8b5cf680}.btn-secondary{background-color:var(--color-surface);color:var(--text-primary);border:1px solid var(--border-color);border-radius:10px}.btn-secondary:hover:not(:disabled){background-color:var(--color-surface-hover);border-color:var(--color-primary);color:var(--color-primary);transform:translateY(-2px);box-shadow:0 4px 12px #8b5cf626}.btn-success{background:var(--gradient-success);color:#fff;box-shadow:var(--glow-success)}.btn-danger{background:var(--gradient-danger);color:#fff;box-shadow:var(--glow-error)}.btn-warning{background:#dc2626;color:#fff;box-shadow:0 2px 8px #dc26264d}.btn-warning:hover:not(:disabled){background:#b91c1c;transform:translateY(-2px);box-shadow:0 4px 12px #b91c1c66}.btn-lg{padding:.65rem 1.25rem;font-size:.9rem;font-weight:600;letter-spacing:.3px;border-radius:8px}.btn-primary.btn-lg:hover:not(:disabled){box-shadow:0 6px 24px #8b5cf680}.btn-secondary.btn-lg{padding:.65rem 1.25rem;font-size:.9rem;font-weight:600;border-radius:8px;display:inline-flex;align-items:center;gap:.4rem}.btn-secondary.btn-lg:hover:not(:disabled){transform:translateY(-2px);background-color:var(--color-surface-hover);border-color:var(--color-primary);color:var(--color-primary)}.btn-sm{padding:var(--spacing-xs) var(--spacing-md);font-size:.85rem}.card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:all var(--transition-base);box-shadow:var(--shadow-md)}.card:hover{background-color:var(--bg-card-hover);border-color:var(--border-color-hover);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.card-glow{position:relative;overflow:hidden}.card-glow:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--gradient-primary);opacity:0;transition:opacity var(--transition-base)}.card-glow:hover:before{opacity:1}input,textarea,select{width:100%;padding:var(--spacing-sm) var(--spacing-md);font-size:1rem;font-family:inherit;background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--transition-base)}html.dark input,html.dark textarea,html.dark select,[data-theme=dark] input,[data-theme=dark] textarea,[data-theme=dark] select{color:#e4e4e7;background-color:#0f0f0f}html.dark input::placeholder,html.dark textarea::placeholder,html.dark select::placeholder,[data-theme=dark] input::placeholder,[data-theme=dark] textarea::placeholder,[data-theme=dark] select::placeholder{color:#71717a}html.light input,html.light textarea,html.light select,[data-theme=light] input,[data-theme=light] textarea,[data-theme=light] select{color:#1e293b;background-color:#fff}html.light input::placeholder,html.light textarea::placeholder,html.light select::placeholder,[data-theme=light] input::placeholder,[data-theme=light] textarea::placeholder,[data-theme=light] select::placeholder{color:#94a3b8}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #8b5cf61a}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:var(--radius-md)}.container{width:100%;max-width:1400px;margin:0 auto;padding:0 var(--spacing-lg)}.text-primary{color:var(--accent-primary)}.text-success{color:var(--accent-success)}.text-error{color:var(--accent-error)}.font-mono{font-family:JetBrains Mono,monospace}.icon-inline{display:inline-flex;align-items:center;vertical-align:middle;margin-right:var(--spacing-xs)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes glow{0%,to{box-shadow:0 0 20px #8b5cf64d}50%{box-shadow:0 0 30px #8b5cf680}}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes correctPulse{0%{transform:scale(1);box-shadow:0 0 #22c55eb3}70%{transform:scale(1.05);box-shadow:0 0 0 10px #22c55e00}to{transform:scale(1);box-shadow:0 0 #22c55e00}}@keyframes incorrectShake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.animate-slide-up{animation:slideInUp .4s ease-out}.animate-scale-in{animation:scaleIn .2s ease-out}.animate-pulse{animation:pulse 2s ease-in-out infinite}.animate-glow{animation:glow 2s ease-in-out infinite}.animate-delay-100{animation-delay:.1s}.animate-delay-200{animation-delay:.2s}.animate-delay-300{animation-delay:.3s}.animate-delay-400{animation-delay:.4s}.hover-lift{transition:all .3s cubic-bezier(.4,0,.2,1)}.hover-lift:hover{transform:translateY(-4px);box-shadow:var(--glow-primary)}.skeleton{background:linear-gradient(90deg,var(--bg-card) 0%,var(--bg-card-hover) 50%,var(--bg-card) 100%);background-size:200% 100%;animation:shimmer 1.5s infinite}@media(max-width:640px){.grid-cols-4,.grid-cols-3,.grid-cols-2{grid-template-columns:1fr}h1{font-size:2rem}h2{font-size:1.5rem}}@media(max-width:768px){.btn{min-height:44px;padding-left:var(--spacing-lg);padding-right:var(--spacing-lg)}input,textarea,select{font-size:16px;min-height:44px}.si-table-wrapper{overflow-x:auto;-webkit-overflow-scrolling:touch}.card{padding:var(--spacing-md)}.page-header h1{font-size:1.5rem}.page-container{overflow-x:hidden}}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:16px}.loading-screen p{color:var(--color-text-secondary);font-size:.95rem;margin:0}.loading-spinner{width:44px;height:44px;border:4px solid var(--color-border, #333);border-top-color:var(--accent-primary, var(--color-primary));border-radius:50%;animation:spin .8s linear infinite}.spinner{width:40px;height:40px;border:3px solid var(--bg-tertiary);border-top-color:var(--accent-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.progress-bar{width:100%;height:8px;background-color:var(--bg-tertiary);border-radius:var(--radius-md);overflow:hidden}.progress-bar-fill{height:100%;background:var(--gradient-primary);border-radius:var(--radius-md);transition:width var(--transition-base)}.badge{display:inline-flex;align-items:center;padding:.25rem .75rem;font-size:.75rem;font-weight:600;border-radius:9999px;background-color:var(--bg-tertiary);color:var(--text-secondary)}.badge-primary{background-color:#8b5cf633;color:var(--accent-primary)}.badge-success{background-color:#10b98133;color:var(--accent-success)}.badge-error{background-color:#ef444433;color:var(--accent-error)}.username-link{color:var(--text-primary);text-decoration:none;transition:color var(--transition-base);cursor:pointer}.username-link:hover{color:var(--accent-primary);text-decoration:none}.username-link .username-text,.username-link:hover .username-text{text-decoration:none}.user-avatar-small{width:24px;height:24px;font-size:.75rem}.user-avatar-medium{width:32px;height:32px;font-size:.9rem}.user-avatar-large{width:40px;height:40px;font-size:1rem}.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;flex-shrink:0}.status-dot--online{background:#22c55e}.status-dot--offline{background:#6b7280}.status-dot--beschaeftigt{background:#f59e0b}.status-dot--bereit{background:#8b5cf6}.page-container{max-width:1200px;margin:0 auto;padding:var(--spacing-2xl) var(--spacing-lg);animation:fadeIn .3s ease}.page-container--narrow{max-width:900px}.page-container--wide{max-width:1400px}.page-header{margin-bottom:var(--spacing-2xl)}.page-header h1{font-size:2rem;font-weight:700;color:var(--color-text);margin-bottom:var(--spacing-xs)}.page-header p{font-size:1rem;color:var(--color-text-secondary);margin:0}.tab-nav{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-xl);padding:var(--spacing-sm);background-color:var(--bg-tertiary);border-radius:var(--radius-lg);border:1px solid var(--border-color);justify-content:center;flex-wrap:wrap}.tab-btn{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:transparent;border:none;border-radius:var(--radius-md);color:var(--text-secondary);font-size:.9rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);white-space:nowrap;font-family:inherit}.tab-btn:hover{background-color:var(--bg-secondary);color:var(--text-primary)}.tab-btn.active{background:var(--gradient-primary);color:#fff}.tab-btn .tab-icon{display:flex;align-items:center;flex-shrink:0}@media(max-width:768px){.page-container{padding:var(--spacing-lg) var(--spacing-md)}.page-header h1{font-size:1.5rem}.tab-btn{padding:var(--spacing-xs) var(--spacing-sm);font-size:.8rem}}.avatar{position:relative;border-radius:50%;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center}.avatar-img{width:100%;height:100%;object-fit:cover;border-radius:50%;overflow:hidden}.avatar-fallback{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-family:inherit;border-radius:50%;overflow:hidden;-webkit-user-select:none;user-select:none}.avatar-status{position:absolute;bottom:0;right:0;border-radius:50%;box-shadow:0 0 0 2px var(--color-surface, #141414);pointer-events:none}.avatar-status--online{background:#22c55e}.avatar-status--offline{background:#6b7280}.avatar-status--beschaeftigt{background:#f59e0b}.avatar-status--bereit{background:#8b5cf6}.avatar-editable{cursor:pointer}.avatar-edit-overlay{position:absolute;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;color:#fff;opacity:0;transition:opacity .2s ease;border-radius:50%}.avatar-editable:hover .avatar-edit-overlay{opacity:1}.usercard-trigger{cursor:pointer}.usercard{position:fixed;z-index:9999;background:var(--color-surface);border:1px solid var(--color-border);border-radius:14px;box-shadow:0 20px 60px #00000047,0 4px 16px #0000001f;min-width:272px;max-width:300px;overflow:hidden;animation:uc-in .18s cubic-bezier(.34,1.56,.64,1);pointer-events:auto}@keyframes uc-in{0%{opacity:0;transform:translateY(-6px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.uc-accent{height:3px;background:var(--gradient-primary)}.uc-body{display:flex;flex-direction:column;gap:11px;padding:14px 16px 13px}.uc-header{display:flex;align-items:center;gap:12px}.uc-avatar{flex-shrink:0;width:48px;height:48px;border-radius:10px}.uc-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:5px}.uc-name{font-size:.95rem;font-weight:700;color:var(--color-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.2}.uc-level-badge{display:inline-block;align-self:flex-start;padding:2px 9px;border-radius:20px;font-size:.7rem;font-weight:700;color:var(--color-primary);background:var(--color-primary-light);letter-spacing:.2px}.uc-progress-wrap{display:flex;flex-direction:column;gap:5px}.uc-progress-labels{display:flex;align-items:baseline;gap:4px}.uc-xp-current{font-size:.78rem;font-weight:700;color:var(--color-text)}.uc-xp-next{font-size:.7rem;color:var(--color-text-tertiary)}.uc-bar{height:5px;background:var(--color-surface-hover);border-radius:99px;overflow:hidden}.uc-fill{height:100%;background:var(--gradient-primary);border-radius:99px;transition:width .5s ease}.uc-stats{display:flex;flex-direction:column;gap:5px;padding-top:4px;border-top:1px solid var(--color-border)}.uc-stat{display:flex;align-items:center;gap:6px;font-size:.77rem;color:var(--color-text-secondary)}.uc-stat svg{flex-shrink:0;color:var(--color-primary);opacity:.85}.uc-cta{display:flex;align-items:center;justify-content:center;gap:4px;padding:7px 12px;border-radius:8px;background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-secondary);font-size:.78rem;font-weight:600;text-decoration:none;transition:background .15s ease,border-color .15s ease,color .15s ease}.uc-cta:hover{background:var(--color-primary-light);border-color:var(--color-primary);color:var(--color-primary)}.uc-loading{padding:28px;display:flex;align-items:center;justify-content:center}.uc-spinner{width:22px;height:22px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:uc-spin .7s linear infinite}@keyframes uc-spin{to{transform:rotate(360deg)}}.uc-error{padding:20px 16px;text-align:center;color:var(--color-text-tertiary);font-size:.8rem}.sidebar{position:fixed;top:0;left:0;bottom:0;width:260px;background-color:var(--color-surface);border-right:1px solid var(--color-border);display:flex;flex-direction:column;transition:width .3s ease;z-index:900;overflow:hidden}.sidebar.collapsed{width:70px}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-lg);border-bottom:1px solid var(--color-border);position:relative;min-height:64px}.sidebar.collapsed .sidebar-header{justify-content:center}.sidebar-brand{display:flex;align-items:center;gap:var(--spacing-md);text-decoration:none;color:var(--color-text);font-weight:700;font-size:1.25rem;flex:1;min-width:0}.collapse-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background-color:var(--color-surface-hover);border:1px solid var(--color-border);border-radius:6px;color:var(--color-text-secondary);cursor:pointer;transition:all .2s ease;flex-shrink:0;font-size:1rem}.collapse-btn:hover{background-color:var(--color-border);border-color:var(--color-primary);color:var(--color-primary)}.sidebar-nav{flex:1;padding:var(--spacing-md);overflow-y:auto;display:flex;flex-direction:column;gap:var(--spacing-xs)}.sidebar-item{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);color:var(--color-text-secondary);text-decoration:none;border-radius:var(--radius-md);transition:all .2s ease;font-weight:500;white-space:nowrap;overflow:hidden}.sidebar.collapsed .sidebar-item{justify-content:center;padding:var(--spacing-md);min-height:44px;overflow:visible}.sidebar.collapsed .sidebar-item:hover{transform:none}.sidebar-item:hover{color:var(--color-text);background-color:var(--color-surface-hover);transform:translate(4px)}.sidebar-item.active{color:var(--color-primary);background:linear-gradient(135deg,#8b5cf626,#06b6d426);border:1px solid rgba(139,92,246,.3);box-shadow:0 0 15px #8b5cf633}.sidebar-icon-wrap{position:relative;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-badge{position:absolute;top:-6px;right:-7px;background:var(--accent-error, #ef4444);color:#fff;font-size:.6rem;font-weight:700;min-width:16px;height:16px;border-radius:99px;display:flex;align-items:center;justify-content:center;padding:0 3px;line-height:1;pointer-events:none}.sidebar-icon{display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);flex-shrink:0;width:20px;height:20px;min-width:20px;min-height:20px}.sidebar.collapsed 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#1d4ed8;--bg-primary: #ffffff;--bg-secondary: #fafafa;--bg-tertiary: #f5f5f5;--bg-card: #ffffff;--bg-card-hover: #fafafa;--bg-input: #ffffff;--text-primary: #000000;--text-secondary: #666666;--text-tertiary: #999999;--text-muted: #cccccc;--text-inverse: #ffffff;--border-color: #e5e5e5;--border-color-hover: #d4d4d4;--border-color-accent: #000000;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: 2px;--radius-md: 4px;--radius-lg: 8px;--radius-xl: 12px;--radius-full: 9999px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .1);--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .35s 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var(--transition-base)}.card:hover{box-shadow:var(--shadow-md);border-color:var(--border-color-hover)}.card-elevated{box-shadow:var(--shadow-md)}.card-elevated:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}input,textarea,select{width:100%;padding:var(--spacing-sm) var(--spacing-md);font-size:.9375rem;font-family:inherit;background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--transition-base)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #0000000d}input::placeholder,textarea::placeholder{color:var(--text-muted)}.badge{display:inline-flex;align-items:center;padding:var(--spacing-xs) 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var(--spacing-lg)}.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-xs{gap:var(--spacing-xs)}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.grid{display:grid}.grid-cols-1{grid-template-columns:repeat(1,1fr)}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}.grid-cols-4{grid-template-columns:repeat(4,1fr)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-primary{color:var(--color-primary)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-accent{color:var(--color-accent)}.font-light{font-weight:300}.font-normal{font-weight:400}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--border-color-hover)}@keyframes 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0}.nav-links{display:flex;gap:var(--spacing-xl)}.nav-link{color:var(--text-secondary);text-decoration:none;font-size:.9375rem;font-weight:500;transition:color var(--transition-base);position:relative}.nav-link:hover,.nav-link.active{color:var(--text-primary)}.nav-link.active:after{content:"";position:absolute;bottom:-17px;left:0;right:0;height:2px;background-color:var(--color-primary)}.minimal-hero{padding:var(--spacing-2xl) 0}.hero-content h2{margin-bottom:var(--spacing-md);font-size:2.5rem;letter-spacing:-.02em}.hero-description{max-width:600px;margin-bottom:var(--spacing-xl);font-size:1.125rem}.hero-actions{display:flex;gap:var(--spacing-md)}.minimal-section{padding:var(--spacing-xl) 0}.section-header{margin-bottom:var(--spacing-xl)}.section-header h3{margin-bottom:var(--spacing-xs);font-size:1.5rem}.section-description{margin:0;font-size:.9375rem}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-lg)}.stat-label{font-size:.875rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs);font-weight:500}.stat-value{font-size:2rem;font-weight:700;color:var(--text-primary);letter-spacing:-.02em}.subject-card{display:flex;flex-direction:column;padding:var(--spacing-xl)}.quiz-preview{padding:var(--spacing-xl);max-width:800px;margin:0 auto}.quiz-question{margin-bottom:var(--spacing-xl);font-size:1.25rem;line-height:1.5}.quiz-option{display:flex;align-items:flex-start;gap:var(--spacing-md);padding:var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base)}.quiz-option input[type=radio]{margin-top:2px;width:auto}.quiz-option span{flex:1;line-height:1.5}.quiz-actions{display:flex;gap:var(--spacing-md)}.buttons-showcase{display:flex;flex-direction:column;gap:var(--spacing-xl)}.color-palette{display:grid;grid-template-columns:repeat(6,1fr);gap:var(--spacing-md)}.minimal-footer{padding:var(--spacing-xl) 0;margin-top:var(--spacing-2xl);border-top:1px solid var(--border-color)}.footer-content{text-align:center}.footer-content p{margin:var(--spacing-xs) 0}.text-sm{font-size:.875rem}@media(max-width:1024px){.stats-grid,.subjects-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.nav-links{gap:var(--spacing-md);font-size:.875rem}.hero-content h2{font-size:2rem}.hero-actions{flex-direction:column}.stats-grid,.subjects-grid{grid-template-columns:1fr}.color-palette{grid-template-columns:repeat(2,1fr)}}:root{--color-primary: #1e3a8a;--color-primary-hover: #1e40af;--color-secondary: #3b82f6;--color-accent: #0ea5e9;--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--bg-card: #1e293b;--bg-card-hover: #334155;--bg-input: #0f172a;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-tertiary: #94a3b8;--text-muted: #64748b;--border-color: #334155;--border-color-hover: #475569;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .5)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);font-size:.9375rem;font-weight:500;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:var(--bg-tertiary);color:var(--text-primary);cursor:pointer;transition:all .2s ease}.btn:hover{background-color:var(--bg-card-hover);border-color:var(--border-color-hover)}.card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-md)}.progress-bar{width:100%;height:6px;background-color:var(--bg-primary);border-radius:var(--radius-sm);overflow:hidden}.progress-bar-fill{height:100%;background-color:var(--color-secondary);border-radius:var(--radius-sm);transition:width .25s ease}:root{--color-primary: #334155;--color-primary-hover: #475569;--color-secondary: #64748b;--color-accent: #10b981;--bg-primary: #f8fafc;--bg-secondary: #f1f5f9;--bg-tertiary: #e2e8f0;--bg-card: #ffffff;--bg-card-hover: #f8fafc;--bg-input: #ffffff;--text-primary: #0f172a;--text-secondary: #475569;--text-tertiary: #94a3b8;--text-muted: #cbd5e1;--border-color: #e2e8f0;--border-color-hover: #cbd5e1;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);font-size:.9375rem;font-weight:500;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:var(--bg-card);color:var(--text-primary);cursor:pointer;transition:all .2s ease}.btn:hover{background-color:var(--bg-secondary);border-color:var(--border-color-hover)}.btn-primary{background-color:var(--color-primary);border-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover)}.btn-accent{background-color:var(--color-accent);border-color:var(--color-accent);color:#fff}.card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-sm)}.progress-bar-fill{height:100%;background-color:var(--color-accent);border-radius:var(--radius-sm);transition:width .25s ease}:root{--color-primary: #5b21b6;--color-primary-hover: #6d28d9;--color-secondary: #a78bfa;--color-accent: #ec4899;--bg-primary: #fefefe;--bg-secondary: #fafafa;--bg-tertiary: #f3f4f6;--bg-card: #ffffff;--bg-card-hover: #fafafa;--bg-input: #ffffff;--text-primary: #111827;--text-secondary: #6b7280;--text-tertiary: #9ca3af;--text-muted: #d1d5db;--border-color: #e5e7eb;--border-color-hover: #d1d5db;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 20px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 8px rgba(0, 0, 0, .06);--shadow-lg: 0 12px 24px rgba(0, 0, 0, .08)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);font-size:.9375rem;font-weight:600;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:var(--bg-card);color:var(--text-primary);cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow-sm)}.btn:hover{background-color:var(--bg-secondary);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-primary{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-secondary) 100%);border:none;color:#fff;box-shadow:0 4px 12px #5b21b633}.btn-primary:hover{background:linear-gradient(135deg,var(--color-primary-hover) 0%,var(--color-secondary) 100%);box-shadow:0 6px 16px #5b21b64d}.btn-accent{background-color:var(--color-accent);border:none;color:#fff;box-shadow:0 4px 12px #ec489933}.card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:var(--spacing-xl);box-shadow:var(--shadow-sm);transition:all .2s ease}.card:hover{box-shadow:var(--shadow-lg)}.progress-bar{width:100%;height:8px;background-color:var(--bg-tertiary);border-radius:var(--radius-sm);overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--color-primary) 0%,var(--color-accent) 100%);border-radius:var(--radius-sm);transition:width .25s ease}.design-showcase{min-height:100vh}.theme-switcher{padding:var(--spacing-xl) 0;border-bottom:1px solid var(--border-color);background-color:var(--bg-primary)}.theme-switcher h1{margin:0 0 var(--spacing-sm) 0;font-size:2rem}.theme-switcher>.container>p{margin:0 0 var(--spacing-xl) 0}.theme-buttons{display:flex;gap:var(--spacing-lg)}.theme-btn{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);border:2px solid var(--border-color);border-radius:var(--radius-lg);background-color:var(--bg-card);cursor:pointer;transition:all .2s ease;flex:1}.theme-btn:hover{border-color:var(--color-primary);box-shadow:0 4px 12px #0000001a}.theme-btn.active{border-color:var(--color-primary);background-color:var(--bg-secondary);box-shadow:0 0 0 3px #0000001a}.theme-preview{width:60px;height:60px;border-radius:var(--radius-md);border:2px solid;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;flex-shrink:0}.theme-info{flex:1;text-align:left}.theme-name{font-weight:600;font-size:1rem;margin-bottom:var(--spacing-xs)}.theme-desc{font-size:.875rem;color:var(--text-secondary)}.demo-content{padding:var(--spacing-xl) 0}.demo-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xl)}.header-actions{display:flex;gap:var(--spacing-md)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.stat-card{padding:var(--spacing-lg);text-align:center}.stat-label{font-size:.875rem;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.stat-value{font-size:2rem;font-weight:700}.subjects-section{margin-bottom:var(--spacing-xl)}.subjects-section h3{margin-bottom:var(--spacing-lg);font-size:1.5rem}.subjects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-lg)}.subject-card{padding:var(--spacing-xl)}.subject-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--spacing-lg)}.subject-header h4{margin:0;font-size:1.125rem}.badge{display:inline-flex;align-items:center;padding:var(--spacing-xs) var(--spacing-md);font-size:.75rem;font-weight:500;border-radius:var(--radius-sm);background-color:var(--bg-tertiary);color:var(--text-secondary)}.badge-primary{background-color:var(--color-primary);color:#fff}.subject-progress{flex:1;margin-bottom:var(--spacing-md)}.progress-info{display:flex;justify-content:space-between;margin-bottom:var(--spacing-sm);font-size:.875rem}.quiz-section{margin-bottom:var(--spacing-xl)}.quiz-section h3{margin-bottom:var(--spacing-lg);font-size:1.5rem}.quiz-card{max-width:800px;margin:0 auto;padding:var(--spacing-xl)}.quiz-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg)}.quiz-card h4{margin-bottom:var(--spacing-xl);font-size:1.25rem}.quiz-options{display:flex;flex-direction:column;gap:var(--spacing-md);margin-bottom:var(--spacing-xl)}.quiz-option{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease}.quiz-option:hover{border-color:var(--color-primary);background-color:var(--bg-secondary)}.quiz-option input[type=radio]{width:auto}.buttons-section{margin-bottom:var(--spacing-xl)}.buttons-section h3{margin-bottom:var(--spacing-lg);font-size:1.5rem}.button-groups{display:flex;flex-direction:column;gap:var(--spacing-xl)}.button-group h4{margin-bottom:var(--spacing-md);font-size:.9375rem;color:var(--text-secondary)}.button-row{display:flex;gap:var(--spacing-md);align-items:center}.btn-sm{padding:var(--spacing-xs) var(--spacing-md);font-size:.875rem}.btn-lg{padding:var(--spacing-md) var(--spacing-xl);font-size:1.125rem}.colors-section{margin-bottom:var(--spacing-xl)}.colors-section h3{margin-bottom:var(--spacing-lg);font-size:1.5rem}.color-palette{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-md)}.color-item{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md)}.color-box{width:60px;height:60px;border-radius:var(--radius-md);border:1px solid var(--border-color)}.color-item span:first-of-type{font-size:.875rem;font-weight:500}.color-item span:last-of-type{font-size:.75rem;font-family:monospace}.demo-footer{padding:var(--spacing-xl) 0;margin-top:var(--spacing-xl);border-top:1px solid var(--border-color);text-align:center}.demo-footer p{margin:0}.theme-deep-blue{--bg-primary: #0f172a;--bg-card: #1e293b;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--border-color: #334155}.theme-slate{--bg-primary: #f8fafc;--bg-card: #ffffff;--text-primary: #0f172a;--text-secondary: #475569;--border-color: #e2e8f0}.theme-clean-light{--bg-primary: #fefefe;--bg-card: #ffffff;--text-primary: #111827;--text-secondary: #6b7280;--border-color: #e5e7eb}@media(max-width:1024px){.theme-buttons{flex-direction:column}.stats-grid,.subjects-grid,.color-palette{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.demo-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-md)}.header-actions{width:100%;flex-direction:column}.stats-grid,.subjects-grid{grid-template-columns:1fr}.button-row{flex-wrap:wrap}}