@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&family=Space+Grotesk:wght@400;700&display=swap";:root{--bg-primary: #0a0c10;--bg-surface: rgba(18, 22, 32, .7);--bg-surface-opaque: #121620;--border-color: rgba(255, 255, 255, .08);--border-glow: rgba(0, 242, 254, .3);--text-primary: #f3f4f6;--text-secondary: #9ca3af;--text-muted: #6b7280;--accent-cyan: #00f2fe;--accent-blue: #4facfe;--accent-purple: #b927fc;--accent-pink: #ff0844;--accent-green: #00ff87;--font-display: "Space Grotesk", sans-serif;--font-body: "Outfit", sans-serif;--panel-width: 420px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-body);overflow:hidden;height:100vh;width:100vw;display:flex}#canvas-container{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1}#ui-container{position:relative;z-index:10;width:100%;height:100%;pointer-events:none;display:flex;justify-content:space-between;padding:24px}.panel{pointer-events:auto;background:var(--bg-surface);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);border-radius:20px;box-shadow:0 20px 40px #00000080,inset 0 1px #ffffff0d;display:flex;flex-direction:column;max-height:calc(100vh - 48px);transition:all .3s cubic-bezier(.4,0,.2,1)}#sidebar{width:var(--panel-width);overflow-y:auto;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent}#sidebar::-webkit-scrollbar{width:6px}#sidebar::-webkit-scrollbar-thumb{background-color:#fff3;border-radius:3px}header{padding:24px;border-bottom:1px solid var(--border-color)}h1{font-family:var(--font-display);font-size:1.8rem;font-weight:700;line-height:1.2;background:linear-gradient(135deg,#fff 30%,var(--accent-cyan) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}.subtitle{font-size:.9rem;color:var(--text-secondary)}.section{padding:24px;border-bottom:1px solid var(--border-color)}.section:last-child{border-bottom:none}h2{font-family:var(--font-display);font-size:1.1rem;font-weight:700;color:var(--accent-cyan);margin-bottom:16px;display:flex;align-items:center;gap:8px}.control-group{margin-bottom:20px}.control-group:last-child{margin-bottom:0}.control-label{display:flex;justify-content:space-between;font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);margin-bottom:8px}.control-val{color:var(--accent-cyan);font-family:var(--font-display)}input[type=range]{-webkit-appearance:none;width:100%;height:6px;border-radius:3px;background:#ffffff1a;outline:none;transition:background .3s}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,var(--accent-blue) 0%,var(--accent-cyan) 100%);cursor:pointer;box-shadow:0 0 10px var(--border-glow);transition:transform .1s,background-color .2s}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}input[type=range]::-moz-range-thumb{width:18px;height:18px;border:none;border-radius:50%;background:linear-gradient(135deg,var(--accent-blue) 0%,var(--accent-cyan) 100%);cursor:pointer;box-shadow:0 0 10px var(--border-glow);transition:transform .1s}input[type=range]::-moz-range-thumb:hover{transform:scale(1.2)}select{width:100%;padding:10px 14px;background:#ffffff0d;border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);font-family:var(--font-body);font-size:.9rem;outline:none;cursor:pointer;transition:border-color .3s,background-color .3s}select:focus,select:hover{border-color:var(--accent-cyan);background:#ffffff14}.toggle-group{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.toggle-group:last-child{margin-bottom:0}.toggle-label{font-size:.9rem;color:var(--text-primary)}.switch{position:relative;display:inline-block;width:44px;height:22px}.switch input{opacity:0;width:0;height:0}.slider-toggle{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:#ffffff1a;transition:.3s;border-radius:34px;border:1px solid var(--border-color)}.slider-toggle:before{position:absolute;content:"";height:14px;width:14px;left:3px;bottom:3px;background-color:#fff;transition:.3s;border-radius:50%}input:checked+.slider-toggle{background-color:#00f2fe33;border-color:var(--accent-cyan)}input:checked+.slider-toggle:before{transform:translate(22px);background-color:var(--accent-cyan);box-shadow:0 0 8px var(--border-glow)}.btn-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:10px}.btn{padding:10px 16px;background:#ffffff0d;border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);font-family:var(--font-body);font-weight:600;font-size:.85rem;cursor:pointer;transition:all .2s ease;display:flex;justify-content:center;align-items:center;gap:6px}.btn:hover{background:#ffffff1a;border-color:var(--accent-cyan);color:var(--accent-cyan)}.btn.active{background:#00f2fe1a;border-color:var(--accent-cyan);color:var(--accent-cyan);box-shadow:0 0 10px #00f2fe33}.btn-primary{grid-column:span 2;background:linear-gradient(135deg,var(--accent-blue) 0%,var(--accent-cyan) 100%);border:none;color:#030712;font-weight:700;box-shadow:0 4px 15px #00f2fe4d}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px #00f2fe80;color:#030712}#info-hud{position:absolute;bottom:24px;right:24px;width:320px;padding:20px;pointer-events:auto}.hud-row{display:flex;justify-content:space-between;margin-bottom:10px;font-size:.85rem}.hud-row:last-child{margin-bottom:0}.hud-label{color:var(--text-secondary)}.hud-val{font-weight:600;font-family:var(--font-display)}.hud-val.cyan{color:var(--accent-cyan)}.hud-val.purple{color:var(--accent-purple)}.hud-val.pink{color:var(--accent-pink)}.hud-val.green{color:var(--accent-green)}.edu-content{font-size:.9rem;line-height:1.6;color:var(--text-secondary)}.edu-content p{margin-bottom:12px}.edu-content ul{margin-left:20px;margin-bottom:12px}.edu-content li{margin-bottom:6px}.edu-content code{background:#ffffff14;padding:2px 6px;border-radius:4px;font-family:monospace;font-size:.85rem;color:var(--accent-cyan)}.math-block{text-align:center;background:#0003;padding:10px;border-radius:8px;margin:12px 0;border-left:3px solid var(--accent-cyan);font-family:var(--font-display);font-size:1rem;color:var(--text-primary)}.legend{display:flex;flex-direction:column;gap:8px;margin-top:12px;padding:10px;background:#00000026;border-radius:8px}.legend-item{display:flex;align-items:center;gap:10px;font-size:.8rem}.legend-color{width:14px;height:14px;border-radius:3px;border:1px solid rgba(255,255,255,.2)}#selection-card{margin-top:15px;padding:12px;background:#00f2fe0d;border:1px dashed var(--accent-cyan);border-radius:10px;display:none}#selection-card.active{display:block;animation:pulse-border 2s infinite}@keyframes pulse-border{0%{border-color:#00f2fe66}50%{border-color:#00f2fe}to{border-color:#00f2fe66}}@media (max-width: 900px){body{flex-direction:column-reverse;overflow-y:auto}#ui-container{flex-direction:column;padding:12px;height:auto;pointer-events:auto}.panel{width:100%!important;max-height:none;margin-bottom:12px}#canvas-container{position:relative;height:50vh;width:100%}#info-hud{position:relative;bottom:auto;right:auto;width:100%}}