:root{--bg: #070a11;--bg-soft: #0a0e17;--panel: #0e1320;--panel-2: #131a29;--panel-3: #18202f;--border: rgba(255, 255, 255, .08);--border-strong: rgba(255, 255, 255, .14);--text: #e6ebf4;--text-dim: #9aa6bd;--text-faint: #6b7689;--accent: #50e3c2;--accent-2: #7aa2ff;--accent-warm: #ff8a5c;--danger: #ff5c7a;--shadow: 0 10px 40px rgba(0, 0, 0, .45);--radius: 14px;--radius-sm: 9px;--ease: cubic-bezier(.4, 0, .2, 1);--sidebar-w: 320px;--bottom-h: 188px;color-scheme:dark}@media (prefers-color-scheme: light){:root{--bg: #eef1f7;--bg-soft: #e7ebf3;--panel: #ffffff;--panel-2: #f4f6fb;--panel-3: #eaeef6;--border: rgba(10, 14, 23, .1);--border-strong: rgba(10, 14, 23, .18);--text: #16203a;--text-dim: #51607a;--text-faint: #8592ab;--shadow: 0 10px 40px rgba(40, 60, 110, .14);color-scheme:light}}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}#app{height:100vh;height:100dvh;width:100%}a{color:var(--accent-2);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer;color:inherit}::selection{background:#50e3c24d}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px}*::-webkit-scrollbar-track{background:transparent}.app-picker{background:radial-gradient(1200px 600px at 80% -10%,rgba(80,227,194,.1),transparent 60%),radial-gradient(1000px 500px at 0% 0%,rgba(122,162,255,.1),transparent 55%),var(--bg)}.picker-scroll{height:100%;overflow-y:auto;scroll-behavior:smooth}.picker{max-width:1100px;margin:0 auto;padding:clamp(28px,6vw,72px) clamp(20px,5vw,48px) 64px}.picker-hero{margin-bottom:48px}.picker-hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);padding:6px 14px;border:1px solid var(--border-strong);border-radius:999px;background:#50e3c20f;margin-bottom:22px}.picker-hero h1{font-size:clamp(30px,5vw,52px);line-height:1.05;letter-spacing:-.02em;margin:0 0 18px;background:linear-gradient(180deg,var(--text),var(--text-dim));-webkit-background-clip:text;background-clip:text;color:transparent;max-width:18ch}.picker-hero p{font-size:clamp(15px,1.6vw,18px);line-height:1.6;color:var(--text-dim);max-width:62ch;margin:0}.picker-section{margin-top:38px}.picker-cat{display:flex;align-items:center;gap:16px;font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint);margin:0 0 16px}.picker-cat-rule{flex:1;height:1px;background:var(--border)}.picker-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}.sim-card{position:relative;display:flex;align-items:center;gap:14px;text-align:left;padding:18px;border-radius:var(--radius);border:1px solid var(--border);background:linear-gradient(180deg,var(--panel-2),var(--panel));transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);overflow:hidden}.sim-card:before{content:"";position:absolute;inset:0;background:radial-gradient(420px 120px at 0% 0%,var(--card-glow, transparent),transparent 70%);opacity:0;transition:opacity .2s var(--ease);pointer-events:none}.sim-card:hover{transform:translateY(-3px);border-color:var(--border-strong);box-shadow:var(--shadow)}.sim-card:hover:before{opacity:1}.sim-card:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.cat-ecosystem{--card-glow: rgba(59, 191, 111, .16);--card-accent: #3bbf6f}.cat-swarm{--card-glow: rgba(122, 215, 255, .16);--card-accent: #7ad7ff}.cat-physics{--card-glow: rgba(255, 210, 122, .16);--card-accent: #ffd27a}.cat-social{--card-glow: rgba(255, 92, 122, .16);--card-accent: #ff5c7a}.cat-complex{--card-glow: rgba(122, 162, 255, .16);--card-accent: #9b8cff}.sim-card-icon{flex:none;width:46px;height:46px;display:grid;place-items:center;border-radius:12px;background:color-mix(in srgb,var(--card-accent) 14%,transparent);color:var(--card-accent);border:1px solid color-mix(in srgb,var(--card-accent) 30%,transparent)}.sim-card-icon svg{width:24px;height:24px}.sim-card-body{display:flex;flex-direction:column;gap:3px;min-width:0}.sim-card-name{font-weight:600;font-size:15px;color:var(--text)}.sim-card-blurb{font-size:13px;color:var(--text-dim)}.sim-card-cat{display:none}.sim-card-arrow{margin-left:auto;color:var(--text-faint);font-size:18px;transform:translate(-4px);opacity:0;transition:transform .18s var(--ease),opacity .18s var(--ease)}.sim-card:hover .sim-card-arrow{transform:translate(0);opacity:1;color:var(--card-accent)}.picker-footer{margin-top:56px;padding-top:22px;border-top:1px solid var(--border);color:var(--text-faint);font-size:13px}.app-sim{display:grid;grid-template-columns:var(--sidebar-w) 1fr;grid-template-rows:100%;height:100%;overflow:hidden;background:var(--bg)}.sidebar{grid-column:1;display:flex;flex-direction:column;border-right:1px solid var(--border);background:var(--panel);overflow:hidden}.sidebar-header{padding:14px 16px;border-bottom:1px solid var(--border)}.back-btn{display:inline-flex;align-items:center;gap:8px;background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px;font-size:13px;color:var(--text-dim);transition:border-color .15s,color .15s,background .15s}.back-btn:hover{color:var(--text);border-color:var(--border-strong);background:var(--panel-2)}.sim-title{padding:16px 18px 6px;display:flex;flex-direction:column;gap:4px}.sim-title-name{font-size:19px;font-weight:700;letter-spacing:-.01em}.sim-title-cat{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}.sim-hint{margin:6px 18px 12px;padding:10px 12px;font-size:12.5px;line-height:1.5;color:var(--text-dim);background:var(--panel-2);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:var(--radius-sm)}.sidebar-controls{flex:1;overflow-y:auto;padding:4px 18px 12px}.reset-defaults{margin:0 18px 16px;padding:10px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel-2);color:var(--text-dim);font-size:13px;font-weight:500;transition:border-color .15s,color .15s,background .15s}.reset-defaults:hover{color:var(--text);border-color:var(--border-strong);background:var(--panel-3)}.cp-group{display:flex;flex-direction:column;gap:14px;padding:10px 0}.cp-row{display:flex;flex-direction:column;gap:8px}.cp-row-inline{flex-direction:row;align-items:center;justify-content:space-between}.cp-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.cp-label{font-size:13px;color:var(--text-dim);display:inline-flex;align-items:center;gap:5px}.cp-info{font-size:10px;color:var(--text-faint);cursor:help}.cp-readout{font-size:12px;font-variant-numeric:tabular-nums;color:var(--accent);font-weight:600;background:#50e3c214;padding:1px 7px;border-radius:6px}.cp-range{--cp-fill: 50%;-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:999px;background:linear-gradient(to right,var(--accent) 0%,var(--accent) var(--cp-fill),var(--panel-3) var(--cp-fill),var(--panel-3) 100%);outline:none;cursor:pointer}.cp-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:#fff;border:2px solid var(--accent);box-shadow:0 1px 5px #0006;transition:transform .12s var(--ease)}.cp-range::-webkit-slider-thumb:hover{transform:scale(1.18)}.cp-range::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:#fff;border:2px solid var(--accent);cursor:pointer}.cp-range:focus-visible{box-shadow:0 0 0 3px #50e3c24d}.cp-select{width:100%;padding:9px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel-2);color:var(--text);font-size:13px;cursor:pointer}.cp-select:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.cp-switch{position:relative;display:inline-block;width:42px;height:24px;flex:none}.cp-switch input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}.cp-switch-track{position:absolute;inset:0;border-radius:999px;background:var(--panel-3);border:1px solid var(--border);transition:background .18s var(--ease)}.cp-switch-track:after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .18s var(--ease);box-shadow:0 1px 3px #0006}.cp-switch input:checked+.cp-switch-track{background:var(--accent);border-color:var(--accent)}.cp-switch input:checked+.cp-switch-track:after{transform:translate(18px)}.cp-switch input:focus-visible+.cp-switch-track{box-shadow:0 0 0 3px #50e3c24d}.cp-color{width:42px;height:26px;padding:0;border:1px solid var(--border);border-radius:7px;background:transparent;cursor:pointer}.cp-advanced{margin-top:6px;border-top:1px solid var(--border);padding-top:6px}.cp-advanced>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;padding:10px 2px;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint);cursor:pointer;user-select:none}.cp-advanced>summary::-webkit-details-marker{display:none}.cp-chevron{transition:transform .2s var(--ease);font-size:16px}.cp-advanced[open]>summary .cp-chevron{transform:rotate(90deg)}.stage{grid-column:2;display:grid;grid-template-rows:1fr 4px var(--bottom-h);min-width:0;min-height:0}.resize-handle{cursor:ns-resize;background:var(--border);user-select:none;touch-action:none;transition:background .15s var(--ease);position:relative;z-index:5}.resize-handle:before{content:"";position:absolute;inset:-6px 0}.resize-handle:hover,.resize-handle.resizing{background:var(--accent)}.canvas-wrap{position:relative;min-height:0;background:radial-gradient(900px 500px at 70% 0%,rgba(122,162,255,.06),transparent 60%),var(--bg-soft);overflow:hidden}.sim-canvas{display:block;width:100%;height:100%;touch-action:none}.stage-loading{position:absolute;inset:0;display:flex;flex-direction:column;gap:14px;align-items:center;justify-content:center;color:var(--text-dim);font-size:14px;background:var(--bg-soft)}.spinner{width:34px;height:34px;border-radius:50%;border:3px solid var(--border-strong);border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.stage-bottom{background:var(--panel);display:flex;flex-direction:column;min-height:0}.toolbar{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--border)}.tb-btn{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;border:1px solid var(--border);background:var(--panel-2);color:var(--text-dim);transition:background .15s,color .15s,border-color .15s,transform .1s}.tb-btn:hover{background:var(--panel-3);color:var(--text);border-color:var(--border-strong)}.tb-btn:active{transform:scale(.94)}.tb-primary{background:var(--accent);color:#04231d;border-color:var(--accent)}.tb-primary:hover{background:color-mix(in srgb,var(--accent) 88%,white);color:#04231d}.tb-speed{display:flex;align-items:center;gap:10px;margin-left:8px;flex:1;min-width:0;max-width:320px}.tb-speed-label{font-size:12px;color:var(--text-faint);white-space:nowrap}.tb-speed-range{flex:1}.tb-speed-readout{font-size:12px;font-variant-numeric:tabular-nums;color:var(--text-dim);min-width:38px;text-align:right}.tb-share{margin-left:auto;display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:10px;border:1px solid var(--border-strong);background:linear-gradient(180deg,var(--panel-3),var(--panel-2));color:var(--text);font-size:13px;font-weight:600;transition:border-color .15s,transform .1s}.tb-share:hover{border-color:var(--accent)}.tb-share:active{transform:scale(.96)}.readouts{flex:1;display:grid;grid-template-columns:minmax(180px,260px) 1fr;grid-template-rows:1fr;min-height:0}.stats-panel{padding:12px 16px;border-right:1px solid var(--border);display:flex;flex-direction:column;gap:8px;overflow-y:auto;align-content:start}.stat{display:flex;align-items:center;gap:8px;font-size:13px}.stat-dot{width:9px;height:9px;border-radius:50%;flex:none}.stat-label{color:var(--text-dim)}.stat-value{margin-left:auto;font-weight:600;font-variant-numeric:tabular-nums;color:var(--text)}.chart-canvas{width:100%;height:100%;display:block}.sheet-toggle{display:none}@media (max-width: 860px){.app-sim{grid-template-columns:1fr;grid-template-rows:1fr}.stage{grid-column:1;grid-row:1}.sidebar{position:absolute;z-index:20;top:0;bottom:0;left:0;width:min(340px,86vw);transform:translate(-103%);transition:transform .25s var(--ease);box-shadow:var(--shadow)}.app-sim.controls-open .sidebar{transform:translate(0)}.sheet-toggle{display:block;position:absolute;z-index:21;left:14px;top:14px;padding:9px 16px;border-radius:999px;border:1px solid var(--border-strong);background:var(--panel);color:var(--text);font-size:13px;font-weight:600;box-shadow:var(--shadow)}.app-sim.controls-open .sheet-toggle{left:min(354px,calc(86vw + 14px))}:root{--bottom-h: 168px}.readouts{grid-template-columns:1fr;grid-template-rows:auto 1fr}.stats-panel{border-right:none;border-bottom:1px solid var(--border);flex-direction:row;flex-wrap:wrap;gap:6px 16px}.stat{flex:0 0 auto}.stat-value{margin-left:6px}}@media (prefers-reduced-motion: reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important}}