@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--bg-primary: #121212;--bg-secondary: #1e1e1e;--bg-tertiary: #2a2a2a;--bg-elevated: #282828;--text-primary: #ffffff;--text-secondary: #b3b3b3;--text-tertiary: #808080;--text-disabled: #535353;--accent-primary: #1db954;--accent-hover: #1ed760;--accent-active: #169c46;--border-subtle: #404040;--border-emphasis: #606060;--code-bg: rgba(255, 255, 255, .1);--canvas-bg: rgba(0, 0, 0, .25);--error-color: #f85555;--warning-color: #ffb84d;--success-color: #1db954;--info-color: #3b94f0;--scrollbar-track: #121212;--scrollbar-thumb: #404040;--scrollbar-thumb-hover: #606060}:root[data-theme=light]{--bg-primary: #E5F2DE;--bg-secondary: #CBF3BB;--bg-tertiary: #ABE7B2;--bg-elevated: #F8FDF6;--text-primary: #1f2d26;--text-secondary: #3d4f45;--text-tertiary: #5c6f63;--text-disabled: #9baa9f;--accent-primary: #93BFC7;--accent-hover: #7AABB3;--accent-active: #629099;--border-subtle: #b8e5a8;--border-emphasis: #93BFC7;--code-bg: #e0f0db;--canvas-bg: #FFFFFF;--error-color: #e85d5d;--warning-color: #f59e0b;--success-color: #4ead5b;--info-color: #93BFC7;--scrollbar-track: #FFFFFF;--scrollbar-thumb: #93BFC7;--scrollbar-thumb-hover: #7AABB3}:root[data-font-size=small]{--base-font-size: 14px}:root[data-font-size=medium]{--base-font-size: 16px}:root[data-font-size=large]{--base-font-size: 18px}:root[data-reduced-motion=true] *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;text-rendering:optimizeLegibility;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;font-size:var(--base-font-size, 16px)}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-primary);color:var(--text-primary);overflow-x:hidden;min-width:320px;min-height:100vh;line-height:1.6}#root{width:100%;min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6,p,ul,ol,li{margin:0;padding:0}ul,ol{list-style:none}a{color:inherit;text-decoration:none}button{background:none;border:none;color:inherit;font:inherit;cursor:pointer}img{max-width:100%;height:auto}code{font-family:SF Mono,Monaco,Inconsolata,Roboto Mono,Source Code Pro,monospace;background-color:var(--code-bg);padding:.125rem .25rem;border-radius:.25rem;font-size:.875em}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media (prefers-contrast: high){:root{--border-emphasis: #ffffff}}::selection{background-color:var(--accent-primary);color:var(--text-primary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}.section-icon{margin-right:var(--spacing-2);color:var(--accent-primary)}.action-icon i{font-size:var(--text-2xl);color:var(--accent-primary)}.stat-icon i{font-size:var(--text-2xl);color:var(--accent-secondary)}:root{--bg-primary: #0B0D1A;--bg-secondary: #151B2D;--bg-tertiary: #1E2A44;--bg-accent: #2A3B5C;--text-primary: #F8FAFC;--text-secondary: #CBD5E1;--text-muted: #94A3B8;--text-accent: #E2E8F0;--text-shadow-primary: 0 1px 3px rgba(0, 0, 0, .8), 0 0 10px rgba(0, 0, 0, .3);--text-shadow-secondary: 0 1px 2px rgba(0, 0, 0, .6);--text-shadow-glow: 0 0 20px rgba(99, 102, 241, .3), 0 1px 3px rgba(0, 0, 0, .8);--section-bg-translucent: rgba(0, 0, 0, .15);--accent-primary: #3B82F6;--accent-secondary: #6366F1;--accent-tertiary: #8B5CF6;--accent-success: #22C55E;--accent-warning: #F59E0B;--accent-danger: #EF4444;--accent-info: #06B6D4;--circuit-high: #22D3EE;--circuit-low: #64748B;--circuit-power: #F59E0B;--circuit-ground: #475569;--gradient-primary: linear-gradient(135deg, #3B82F6 0%, #6366F1 35%, #8B5CF6 65%, #22D3EE 100%);--gradient-secondary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #EC4899 100%);--gradient-cosmic: radial-gradient(ellipse at center, #1E2A44 0%, #151B2D 50%, #0B0D1A 100%);--gradient-card: linear-gradient(145deg, rgba(59, 130, 246, .08) 0%, rgba(139, 92, 246, .04) 100%);--gradient-hover: linear-gradient(135deg, #2563EB 0%, #4F46E5 50%, #7C3AED 100%);--gradient-success: linear-gradient(135deg, #22C55E 0%, #16A34A 100%);--gradient-warning: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px rgba(0, 0, 0, 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var(--spacing-1);--spacing-sm: var(--spacing-2);--spacing-md: var(--spacing-4);--spacing-lg: var(--spacing-6);--spacing-xl: var(--spacing-8);--spacing-2xl: var(--spacing-12);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-2xl: 32px;--radius-pill: 50px;--border-gradient-primary: linear-gradient(135deg, rgba(255, 255, 255, .2), rgba(255, 255, 255, .1));--border-gradient-secondary: linear-gradient(135deg, rgba(255, 255, 255, .15), rgba(255, 255, 255, .05));--border-gradient-subtle: linear-gradient(135deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .05));--glow-primary: 0 0 20px rgba(255, 255, 255, .1), 0 0 40px rgba(255, 255, 255, .05);--glow-primary-hover: 0 0 30px rgba(255, 255, 255, .2), 0 0 60px rgba(255, 255, 255, .1);--glow-secondary: 0 0 15px rgba(255, 255, 255, .15), 0 0 30px rgba(255, 255, 255, .08);--glow-secondary-hover: 0 0 25px rgba(255, 255, 255, .25), 0 0 50px rgba(255, 255, 255, .15);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 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#f59e0b;--circuit-ground: #3d4f45;--gradient-primary: linear-gradient(135deg, #93BFC7 0%, #7AABB3 50%, #629099 100%);--gradient-secondary: linear-gradient(135deg, #ABE7B2 0%, #93BFC7 50%, #7AABB3 100%);--gradient-cosmic: radial-gradient(ellipse at center, #CBF3BB 0%, #ECF4E8 50%, #FFFFFF 100%);--gradient-card: linear-gradient(145deg, rgba(147, 191, 199, .08) 0%, rgba(171, 231, 178, .05) 100%);--gradient-hover: linear-gradient(135deg, #7AABB3 0%, #629099 50%, #4a7e87 100%);--gradient-success: linear-gradient(135deg, #4ead5b 0%, #3d9147 100%);--gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);--glass-bg: rgba(255, 255, 255, .7);--glass-border: rgba(147, 191, 199, .3);--glass-shadow: 0 8px 32px rgba(147, 191, 199, .15);--card-bg: rgba(255, 255, 255, .95);--card-border: rgba(147, 191, 199, .3);--card-hover-bg: rgba(255, 255, 255, 1);--card-shadow: 0 4px 16px rgba(147, 191, 199, .2);--border-gradient-primary: linear-gradient(135deg, #93BFC7 0%, #ABE7B2 50%, #CBF3BB 100%);--border-gradient-secondary: linear-gradient(135deg, #93BFC7 0%, #7AABB3 100%);--neon-cyan: #93BFC7;--neon-purple: #ABE7B2;--neon-blue: #7AABB3}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-primary);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden;position:relative;cursor:auto}.orb-background{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);overflow:hidden;transition:filter .8s cubic-bezier(.4,0,.2,1)}.orb-section-home{filter:hue-rotate(0deg) brightness(1)}.orb-section-converter{filter:hue-rotate(180deg) brightness(.95) saturate(1.1)}.orb-section-quizzes{filter:hue-rotate(40deg) brightness(1.05) saturate(1.2)}.orb-section-admin{filter:hue-rotate(280deg) brightness(.9) saturate(1.15)}.orb-section-settings{filter:hue-rotate(270deg) brightness(1) saturate(1.1)}:root[data-hide-orb=true] .orb-background{display:none}:root[data-theme=light][data-hide-orb=true]{--bg-primary: #E4F2DE !important;--bg-secondary: #E4F2DE !important;--bg-tertiary: #E4F2DE !important}:root[data-theme=light][data-hide-orb=true] html{background:#e4f2de!important;background-attachment:fixed}:root[data-theme=light][data-hide-orb=true] body{background:#e4f2de!important;background-attachment:fixed}:root[data-theme=light][data-hide-orb=true] .cosmic-app{background:#e4f2de!important}:root[data-theme=light][data-hide-orb=true] .orb-background{background:transparent!important}:root[data-theme=light][data-hide-orb=true] .cosmic-main{background:#e4f2de!important}:root[data-theme=light][data-hide-orb=true] .section-container{background:transparent!important}.orb-background:before,.orb-background:after{content:"";position:absolute;top:-20%;right:-20%;bottom:-20%;left:-20%;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.08),transparent 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var(--spacing-8);text-align:center}.hero-title{font-size:clamp(2.25rem,5vw,4rem);font-weight:800;color:#fff;line-height:1.1;letter-spacing:-.02em;margin:0}.gradient-emphasis{color:transparent;background-image:linear-gradient(90deg,#a855f7,#06b6d4);-webkit-background-clip:text;background-clip:text;filter:brightness(1.3) contrast(1.1);text-shadow:0 0 20px rgba(168,85,247,.4),0 0 40px rgba(34,211,238,.3)}:root[data-theme=light] .gradient-emphasis{background-image:linear-gradient(90deg,#a855f7,#06b6d4);filter:brightness(1.3) contrast(1.1);text-shadow:none}h1,h2,h3,h4,h5,h6{text-shadow:var(--text-shadow-primary)}p,span,.text-secondary{text-shadow:var(--text-shadow-secondary)}.section-title-modern,.hero-title-modern,.page-intro h1,.converter-section h3,.dashboard-section h2{text-shadow:var(--text-shadow-glow)}button,.btn,a{text-shadow:var(--text-shadow-secondary)}:root[data-theme=light] h1,:root[data-theme=light] h2,:root[data-theme=light] h3,:root[data-theme=light] h4,:root[data-theme=light] h5,:root[data-theme=light] h6,:root[data-theme=light] p,:root[data-theme=light] span,:root[data-theme=light] .text-secondary,:root[data-theme=light] button,:root[data-theme=light] .btn,:root[data-theme=light] a,:root[data-theme=light] .section-title-modern,:root[data-theme=light] .hero-title-modern,:root[data-theme=light] .page-intro h1,:root[data-theme=light] .converter-section h3,:root[data-theme=light] .dashboard-section h2{text-shadow:none!important}:root[data-theme=light] .hero-title{color:#000}input,textarea,select{cursor:text}button,a,.nav-dot,.logo-button{cursor:pointer}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:#0a0a0b4d;pointer-events:none;z-index:-1}body:after{content:"";position:fixed;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 20%,rgba(99,102,241,.05) 0%,transparent 50%),radial-gradient(circle at 70% 80%,rgba(139,92,246,.04) 0%,transparent 50%),radial-gradient(circle at 90% 10%,rgba(6,182,212,.03) 0%,transparent 50%);animation:cosmicGlow 20s ease-in-out infinite alternate;pointer-events:none;z-index:-1}@keyframes cosmicGlow{0%{opacity:.2;transform:rotate(0) scale(1)}to{opacity:.4;transform:rotate(1deg) scale(1.02)}}.cosmic-app{min-height:100vh;display:flex;flex-direction:column;position:relative;z-index:1}.cosmic-header{position:fixed;top:0;left:0;right:0;z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:var(--glass-bg);border-bottom:1px solid var(--glass-border);padding:var(--spacing-4) var(--spacing-6)}.header-content{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:var(--spacing-8)}.logo-button{background:none;border:none;cursor:pointer;display:flex;flex-direction:column;align-items:flex-start;transition:var(--transition-normal)}.logo-button:hover{transform:translateY(-2px)}.logo-text{font-size:var(--text-2xl);font-weight:var(--font-weight-extrabold);background:var(--gradient-primary);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1}.logo-subtitle{font-size:var(--text-sm);color:var(--text-secondary);font-weight:var(--font-weight-medium);margin-top:2px}.header-actions{display:flex;align-items:center;gap:var(--spacing-4)}.user-menu{position:relative;display:flex;align-items:center}.user-menu-trigger{display:inline-flex;align-items:center;gap:var(--spacing-2);padding:8px 12px;border-radius:var(--radius-pill);border:1px solid rgba(255,255,255,.12);background:#ffffff0f;color:var(--text-secondary);cursor:pointer;transition:var(--transition-normal);box-shadow:var(--glow-secondary)}.user-menu-trigger:hover{background:#ffffff1a;transform:translateY(-1px)}.user-avatar{width:28px;height:28px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:var(--font-weight-bold);color:#fff;background:var(--gradient-primary);box-shadow:var(--glow-primary);flex:0 0 auto}.user-menu-name{font-size:var(--text-sm);font-weight:var(--font-weight-medium);white-space:nowrap}.user-menu-caret{font-size:12px;opacity:.85}.user-menu-dropdown{position:absolute;right:0;top:calc(100% + 10px);min-width:240px;border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.14);background:#0a0c19eb;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:var(--shadow-xl);padding:10px;z-index:50}.user-menu-meta{padding:8px 10px 10px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:8px}.user-menu-fullname{color:var(--text-primary);font-weight:var(--font-weight-semibold)}.user-menu-email{color:var(--text-muted);font-size:var(--text-sm);margin-top:2px;word-break:break-all}.user-menu-item{width:100%;display:flex;align-items:center;gap:10px;padding:10px;border-radius:var(--radius-md);border:1px solid transparent;background:transparent;color:var(--text-secondary);cursor:pointer;transition:var(--transition-fast)}.user-menu-item:hover{background:#ffffff14;border-color:#ffffff1f}.auth-button{padding:var(--spacing-2) var(--spacing-4);background:var(--gradient-primary);border:none;border-radius:var(--radius-lg);color:#fff;font-weight:var(--font-weight-semibold);font-size:var(--text-sm);cursor:pointer;transition:var(--transition-normal);box-shadow:var(--glass-shadow)}.auth-button:hover{transform:translateY(-2px);box-shadow:0 12px 40px #6366f166}.auth-button.logout{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}:root[data-theme=light] .auth-button{color:#000;background:var(--accent-primary)}:root[data-theme=light] .auth-button:hover{background:var(--accent-hover);box-shadow:0 4px 12px #93bfc74d}.header-nav{display:flex;align-items:center;gap:var(--spacing-2);flex:1;justify-content:center}.nav-item{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-4);background:transparent;border:1px solid rgba(99,102,241,.3);border-radius:var(--radius-pill);color:var(--text-secondary);font-weight:var(--font-weight-medium);font-size:var(--text-sm);cursor:pointer;transition:var(--transition-normal);white-space:nowrap;box-shadow:var(--glow-primary)}.nav-item:hover{border-color:#6366f199;color:var(--text-primary);transform:translateY(-2px);box-shadow:var(--glow-primary-hover)}.nav-item.active{border-color:#6366f1cc;color:var(--text-primary);box-shadow:var(--glow-primary-hover);background:#6366f11a}:root[data-theme=light] .nav-item:hover{border-color:#93bfc799;box-shadow:0 2px 8px #93bfc733}:root[data-theme=light] .nav-item.active{border-color:#93bfc7cc;background:#93bfc726;box-shadow:0 2px 12px #93bfc74d}.nav-item .nav-icon{font-size:var(--text-base);width:16px;text-align:center}.nav-item .nav-label{font-size:var(--text-sm);font-weight:var(--font-weight-medium)}.cosmic-main{flex:1;padding-top:100px;padding-bottom:80px;min-height:calc(100vh - 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var(--border-subtle);border-radius:var(--radius-lg);transition:all .3s ease}.setting-item:hover{background:var(--bg-tertiary);border-color:var(--border-emphasis);transform:translate(4px)}.setting-item:last-child{margin-bottom:0}.setting-info{flex:1;display:flex;flex-direction:column;gap:var(--spacing-2)}.setting-info h3{color:var(--text-primary);font-size:var(--text-lg);font-weight:var(--font-weight-semibold);margin:0}.setting-info p{color:var(--text-secondary);font-size:var(--text-sm);line-height:1.5;margin:0}.setting-control{display:flex;flex-direction:column;align-items:flex-end;gap:var(--spacing-2);min-width:fit-content}.setting-note{color:var(--text-tertiary);font-size:var(--text-xs);font-style:italic;margin-top:var(--spacing-2)}.setting-control .button-group{display:flex;gap:var(--spacing-2)}.setting-control .button-group .btn{padding:var(--spacing-3) var(--spacing-5);font-size:var(--text-sm);font-weight:var(--font-weight-medium);white-space:nowrap}.toggle-switch{position:relative;display:inline-block;width:56px;height:28px;cursor:pointer}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--bg-tertiary);border:2px solid var(--border-subtle);transition:all .4s cubic-bezier(.4,0,.2,1);border-radius:34px}.toggle-slider:before{position:absolute;content:"";height:20px;width:20px;left:2px;bottom:2px;background-color:var(--text-secondary);transition:all .4s cubic-bezier(.4,0,.2,1);border-radius:50%}input:checked+.toggle-slider{background-color:var(--accent-primary);border-color:var(--accent-primary)}input:checked+.toggle-slider:before{transform:translate(28px);background-color:#fff}input:focus+.toggle-slider{box-shadow:0 0 0 3px #3b82f633}.toggle-slider:hover{border-color:var(--border-emphasis)}.settings-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-4)}.info-item{display:flex;flex-direction:column;gap:var(--spacing-2);padding:var(--spacing-4);background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md)}.info-item strong{color:var(--text-secondary);font-size:var(--text-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.05em}.info-item span{color:var(--text-primary);font-size:var(--text-base);font-weight:var(--font-weight-medium)}@media (max-width: 768px){.settings-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-4)}.settings-actions{width:100%;justify-content:space-between}.setting-item{flex-direction:column;align-items:stretch}.setting-control{align-items:stretch;width:100%}.setting-control .button-group{width:100%}.setting-control .button-group .btn{flex:1}.toggle-switch{align-self:flex-end}}