@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap";:root{--bg-dark: #090d16;--bg-card: rgba(15, 23, 42, .75);--bg-card-hover: rgba(30, 41, 59, .85);--bg-input: rgba(2, 6, 23, .6);--border-subtle: rgba(255, 255, 255, .08);--border-focus: rgba(56, 189, 248, .5);--accent-cyan: #38bdf8;--accent-amber: #f59e0b;--accent-emerald: #10b981;--accent-rose: #f43f5e;--accent-violet: #818cf8;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", monospace;--sidebar-width: 380px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-dark);color:var(--text-primary);min-height:100vh;overflow:hidden;-webkit-user-select:none;user-select:none;background-image:radial-gradient(circle at 15% 15%,rgba(56,189,248,.06) 0%,transparent 40%),radial-gradient(circle at 85% 85%,rgba(129,140,248,.06) 0%,transparent 40%)}#app{display:flex;flex-direction:column;height:100vh;width:100vw}.topbar{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;background:#0f172acc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);z-index:20}.brand{display:flex;align-items:center;gap:12px}.brand-icon{width:28px;height:28px;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-violet));border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:15px;box-shadow:0 0 12px #38bdf866}.brand-title{font-size:17px;font-weight:700;letter-spacing:-.02em;background:linear-gradient(90deg,#f8fafc,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.mode-switcher{display:flex;background:#020617b3;padding:3px;border-radius:10px;border:1px solid var(--border-subtle)}.mode-btn{padding:6px 14px;border-radius:7px;font-size:13px;font-weight:500;color:var(--text-secondary);background:transparent;border:none;cursor:pointer;transition:all .2s ease}.mode-btn.active{background:#38bdf826;color:var(--accent-cyan);border:1px solid rgba(56,189,248,.3);box-shadow:0 0 10px #38bdf826}.playback-bar{display:flex;align-items:center;gap:12px}.btn-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:8px;color:var(--text-primary);cursor:pointer;transition:all .2s ease}.btn-icon:hover{background:var(--bg-card-hover);border-color:var(--border-focus)}.scrubber-group{display:flex;align-items:center;gap:8px}.time-display{font-family:var(--font-mono);font-size:12px;color:var(--text-muted);min-width:60px}.workspace{display:flex;flex:1;position:relative;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;overflow-y:auto;z-index:10;padding:16px;gap:16px}.canvas-container{flex:1;position:relative;overflow:hidden;background:#060911;display:flex}canvas#main-canvas{width:100%;height:100%;display:block;touch-action:none}.sidebar-backdrop{display:none;position:absolute;top:0;right:0;bottom:0;left:0;background:#040710bf;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:30}.sidebar-backdrop.active{opacity:1;pointer-events:auto}.topbar-actions{display:flex;align-items:center;gap:8px}.btn-sidebar-toggle{display:none;align-items:center;gap:6px;padding:6px 12px;border-radius:8px;font-size:13px;font-weight:600;color:var(--text-primary);background:#1e293bb3;border:1px solid var(--border-subtle);cursor:pointer;transition:all .2s ease;touch-action:manipulation}.btn-sidebar-toggle:hover{background:var(--bg-card-hover);border-color:var(--border-focus)}.btn-sidebar-toggle.active{background:#38bdf833;border-color:var(--accent-cyan);color:var(--accent-cyan);box-shadow:0 0 12px #38bdf840}.hud-panel{position:absolute;top:16px;right:16px;background:#0f172ad9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-subtle);border-radius:12px;padding:12px 16px;display:flex;flex-direction:column;gap:8px;font-size:12px;pointer-events:auto;box-shadow:0 8px 32px #0006}.hud-item{display:flex;justify-content:space-between;gap:16px}.hud-label{color:var(--text-muted)}.hud-val{font-family:var(--font-mono);font-weight:500;color:var(--text-primary)}.hud-badge{padding:2px 6px;border-radius:4px;font-size:10px;text-transform:uppercase;font-weight:600}.hud-badge.green{background:#10b98126;color:var(--accent-emerald);border:1px solid rgba(16,185,129,.3)}.hud-badge.amber{background:#f59e0b26;color:var(--accent-amber);border:1px solid rgba(245,158,11,.3)}.hud-badge.cyan{background:#38bdf826;color:var(--accent-cyan);border:1px solid rgba(56,189,248,.3)}.card{background:#0f172a80;border:1px solid var(--border-subtle);border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:12px;transition:border-color .2s ease}.card:hover{border-color:#ffffff26}.card-header{display:flex;justify-content:space-between;align-items:center}.card-title{font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.matrix-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:8px;background:var(--bg-input);border-radius:8px;border:1px solid rgba(255,255,255,.05)}.matrix-cell{display:flex;flex-direction:column;gap:4px}.matrix-cell label{font-family:var(--font-mono);font-size:11px;color:var(--text-muted)}.input-num{width:100%;padding:6px 8px;border-radius:6px;background:#ffffff0a;border:1px solid var(--border-subtle);color:var(--text-primary);font-family:var(--font-mono);font-size:12px;outline:none;transition:all .2s}.input-num:focus{border-color:var(--accent-cyan);box-shadow:0 0 8px #38bdf833}.btn-primary{background:linear-gradient(135deg,#38bdf8cc,#818cf8cc);color:#fff;border:none;border-radius:8px;padding:8px 14px;font-size:12px;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;gap:6px}.btn-primary:hover{filter:brightness(1.15);box-shadow:0 0 12px #38bdf84d}.btn-secondary{background:#ffffff0f;color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:8px;padding:6px 12px;font-size:12px;font-weight:500;cursor:pointer;transition:all .2s ease}.btn-secondary:hover{background:#ffffff1a;border-color:#fff3}.btn-danger{background:#f43f5e26;color:var(--accent-rose);border:1px solid rgba(244,63,94,.3);border-radius:6px;padding:4px 8px;font-size:11px;cursor:pointer}.btn-danger:hover{background:#f43f5e40}.select-styled{background:var(--bg-input);border:1px solid var(--border-subtle);color:var(--text-primary);padding:6px 10px;border-radius:6px;font-size:12px;outline:none}.slider-container{display:flex;align-items:center;gap:8px}.slider-container input[type=range]{flex:1;accent-color:var(--accent-cyan)}.matrix-card{background:#02061780;border:1px solid var(--border-subtle);border-radius:8px;padding:10px;display:flex;flex-direction:column;gap:8px;position:relative}.matrix-card.active-selected{border-color:var(--accent-cyan)}.matrix-badge-row{display:flex;justify-content:space-between;align-items:center;font-size:11px}.arm-row{display:flex;align-items:center;gap:8px;background:#02061766;padding:6px 10px;border-radius:6px;border:1px solid var(--border-subtle)}.arm-k{font-family:var(--font-mono);font-weight:600;color:var(--accent-cyan);min-width:32px}.canvas-hint{position:absolute;bottom:16px;left:16px;background:#0f172ad9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:8px 12px;border-radius:8px;border:1px solid var(--border-subtle);font-size:11px;color:var(--text-muted);display:flex;gap:16px;pointer-events:none}.canvas-hint span kbd{background:#ffffff1a;padding:2px 4px;border-radius:4px;color:var(--text-primary);font-family:var(--font-mono)}.panel-note{font-size:12px;line-height:1.5;color:var(--text-secondary)}.path-legend{list-style:none;display:flex;flex-wrap:wrap;gap:14px;font-size:11px;color:var(--text-muted)}.path-legend li{display:flex;align-items:center;gap:6px}.legend-swatch{display:inline-block;width:20px;height:0;border-top:2.5px solid var(--accent-amber);border-radius:2px}.legend-future{border-top-color:#fbbf24;box-shadow:0 0 6px #fbbf24b3}.legend-past{border-top:2px dashed rgba(148,163,184,.8)}.legend-velocity{border-top-color:var(--accent-cyan)}.hud-muted{color:var(--text-muted);font-style:italic}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1f;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#ffffff40}input,select,button{touch-action:manipulation}@media(max-width:960px){.btn-sidebar-toggle{display:inline-flex}.sidebar-backdrop{display:block}.topbar{flex-wrap:wrap;gap:10px;padding:10px 14px}.brand-title{font-size:16px}.playback-bar{width:100%;justify-content:flex-start;flex-wrap:wrap;gap:8px;padding-top:8px;border-top:1px solid rgba(255,255,255,.06)}.scrubber-group{flex:1;min-width:140px}.scrubber-group input[type=range]{flex:1;width:auto;min-width:70px}.sidebar{position:absolute;top:0;left:0;bottom:0;width:min(390px,92vw);max-width:420px;background:#0a0f1df5;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid rgba(255,255,255,.12);box-shadow:none;transform:translate(-105%);transition:transform .3s cubic-bezier(.16,1,.3,1),box-shadow .3s ease;z-index:40;-webkit-overflow-scrolling:touch}.sidebar.mobile-open{transform:translate(0);box-shadow:14px 0 45px #000c}}@media(max-width:680px){.topbar{padding:8px 10px;gap:6px}.brand{gap:8px}.brand-icon{width:26px;height:26px;font-size:13px}.brand-title{font-size:15px}.mode-btn{padding:5px 8px;font-size:11.5px}.btn-sidebar-toggle{padding:5px 9px;font-size:12px}.playback-bar{gap:6px;padding-top:6px}.btn-icon{width:32px;height:32px}.select-styled{padding:5px 8px;font-size:11.5px}.time-display{font-size:11px;min-width:52px}.btn-primary,.btn-secondary{padding:6px 10px;font-size:11.5px}.hud-panel{top:10px;right:10px;padding:8px 12px;gap:6px;font-size:11px;border-radius:10px;max-width:calc(100vw - 20px)}.canvas-hint{display:none}}@media(max-width:440px){.topbar{padding:6px 8px}.brand-title{display:none}.mode-switcher{padding:2px}.mode-btn{padding:4px 6px;font-size:10.5px}.playback-bar{display:flex;flex-wrap:wrap;align-items:center;gap:4px}.scrubber-group{order:10;width:100%;margin-top:2px}.scrubber-group input[type=range]{width:100%}#btn-reset-view,#btn-share{padding:4px 8px;font-size:10.5px}}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#020617d9;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);z-index:100;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .25s ease;padding:16px}.modal-backdrop.open{opacity:1;pointer-events:auto}.modal-window{background:#0f172af5;border:1px solid var(--border-subtle);border-radius:16px;width:min(880px,96vw);max-height:88vh;display:flex;flex-direction:column;box-shadow:0 25px 60px #000000b3;overflow:hidden;animation:modalScaleUp .25s cubic-bezier(.16,1,.3,1)}@keyframes modalScaleUp{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:#0a0f1dcc;border-bottom:1px solid var(--border-subtle)}.modal-title-group{display:flex;flex-direction:column;gap:4px}.modal-badge{display:inline-block;align-self:flex-start;font-size:10px;text-transform:uppercase;font-weight:700;color:var(--accent-cyan);background:#38bdf826;border:1px solid rgba(56,189,248,.3);padding:2px 8px;border-radius:4px;letter-spacing:.05em}.modal-title{font-size:18px;font-weight:700;color:var(--text-primary);margin:0}.modal-tabs{display:flex;gap:8px;padding:10px 24px;background:#020617b3;border-bottom:1px solid var(--border-subtle);overflow-x:auto;-webkit-overflow-scrolling:touch}.modal-tab-btn{padding:6px 14px;border-radius:8px;font-size:12px;font-weight:600;color:var(--text-secondary);background:transparent;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:all .2s ease}.modal-tab-btn:hover{color:var(--text-primary);background:#ffffff0d}.modal-tab-btn.active{color:var(--accent-cyan);background:#38bdf826;border-color:#38bdf859;box-shadow:0 0 10px #38bdf826}.modal-body{padding:24px;overflow-y:auto;flex:1;font-size:13.5px;line-height:1.68;color:var(--text-secondary)}.theory-doc h3{font-size:18px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.theory-intro{font-size:14px;color:var(--text-secondary);margin-bottom:16px}.theory-doc h4{font-size:13.5px;font-weight:600;color:var(--accent-cyan);margin:22px 0 8px;text-transform:uppercase;letter-spacing:.04em}.theory-doc p{margin-bottom:10px}.theory-doc ul,.theory-doc ol{margin:8px 0 16px 24px;display:flex;flex-direction:column;gap:6px}.math-block{background:#020617bf;border:1px solid var(--border-subtle);border-left:3px solid var(--accent-cyan);border-radius:8px;padding:12px 18px;margin:14px 0;font-family:var(--font-mono);color:var(--text-primary);font-size:13px;overflow-x:auto;line-height:1.5}.proof-box{background:#1e293b66;border:1px solid rgba(56,189,248,.2);border-radius:10px;padding:14px 18px;margin:16px 0;font-size:13px;color:var(--text-primary);line-height:1.6}.proof-box strong{color:var(--accent-amber);display:block;margin-bottom:6px}.theory-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:12px}.theory-table th,.theory-table td{padding:8px 12px;border:1px solid var(--border-subtle);text-align:left}.theory-table th{background:#020617b3;color:var(--text-primary);font-weight:600}.theory-table tr:hover{background:#ffffff05}@media(max-width:680px){.modal-window{width:98vw;max-height:94vh;border-radius:12px}.modal-header{padding:12px 16px}.modal-title{font-size:15px}.modal-tabs{padding:8px 12px;gap:6px}.modal-tab-btn{padding:5px 10px;font-size:11px}.modal-body{padding:16px;font-size:12.5px}.math-block{padding:10px 12px;font-size:11.5px}}