:root{--bg:oklch(1 0 0);--surface:oklch(.978 .005 120);--ink:oklch(.27 .024 115);--muted:oklch(.51 .025 115);--primary:oklch(.47 .10 113);--primary-light:oklch(.945 .04 113);--seed:oklch(.797 .166 113.1);--line:oklch(.91 .01 115);--accent:oklch(.62 .17 34);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);font-synthesis:none;background:var(--bg);font-size:14px}*{box-sizing:border-box}body{margin:0}button,a,input{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{color:inherit;cursor:pointer}button{transition:background .18s,border-color .18s,transform .18s}button:active{transform:translateY(1px)}button:focus-visible,a:focus-visible,input:focus-visible,canvas:focus-visible{outline:3px solid var(--seed);outline-offset:4px}button:disabled{opacity:.45;cursor:not-allowed}a{color:inherit;text-decoration:none}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.icon-library{position:absolute;width:0;height:0;overflow:hidden}.topbar{height:86px;border-bottom:1px solid var(--line);padding:0 4.4%;display:flex;align-items:center;gap:27px}.brand{font-size:36px;font-weight:750;letter-spacing:-1.7px;display:flex;align-items:center;gap:9px}.brand-mark{width:30px;display:flex}.brand-mark svg{width:30px;height:34px;fill:var(--primary);stroke:none}.brand-dot{color:var(--primary);margin-left:-8px}.brand-caption{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:27px}.topbar nav{display:flex;align-items:center;gap:23px;margin-left:auto}.experiment-tag{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.experiment-tag>span,.live-badge>span:first-child,.data-dot{width:6px;height:6px;border-radius:100%;background:var(--primary)}.topbar #help{display:none}.about-link{font-size:12px;font-weight:550}.about-link span{margin-left:9px;color:var(--muted)}main{max-width:1660px;margin:auto;padding:34px 4.4% 0}.page-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:27px;gap:20px}.eyebrow{font-size:9px;letter-spacing:1.55px;color:var(--primary);font-weight:700;margin-bottom:11px}h1{font-size:32px;letter-spacing:-1.1px;font-weight:560;margin:0 0 9px;text-wrap:balance}.page-heading p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.reset-button{display:flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:7px;padding:10px 14px;background:white;font-size:12px}.reset-button:hover{background:var(--surface);border-color:var(--muted)}.reset-button svg{width:16px;height:16px}.workspace{display:grid;grid-template-columns:280px minmax(0,1fr);border:1px solid var(--line);border-radius:12px;overflow:hidden;min-height:675px}.sidebar{padding:25px 23px 15px;background:white;border-right:1px solid var(--line);z-index:2}.section-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.section-title h2{font-size:13px;font-weight:650;margin:0}.section-title>svg{width:15px;height:15px;color:var(--muted)}.small-label{font-size:7px;letter-spacing:.6px;color:var(--muted);font-weight:550}.tool-list{display:flex;flex-direction:column;gap:6px}.tool{display:flex;align-items:center;width:100%;background:transparent;border:1px solid transparent;padding:11px 9px;border-radius:7px;text-align:left;gap:10px}.tool:hover{background:var(--surface)}.tool.active{border-color:oklch(.82 .065 113);background:var(--primary-light)}.tool-icon{display:flex;color:var(--muted)}.tool.active .tool-icon{color:var(--primary)}.tool-icon svg{width:22px;height:22px}.tool strong{display:block;font-size:11px;font-weight:620;margin-bottom:4px}.tool small{font-size:9px;color:var(--muted);display:block}.tool kbd{margin-left:auto;background:var(--bg);font-size:8px;color:var(--muted);border:1px solid var(--line);border-radius:3px;padding:2px 4px}.shake-button{width:100%;background:var(--primary);border:1px solid var(--primary);color:white;display:flex;align-items:center;justify-content:center;gap:8px;border-radius:6px;padding:11px;font-size:11px;font-weight:550;margin-top:14px}.shake-button:hover{background:oklch(.40 .09 113)}.shake-button svg{width:16px;height:16px}.shake-button>span{margin-left:auto}.tools-section .shake-button>span{margin-left:8px}.parameters,.environment{padding-top:22px;margin-top:21px;border-top:1px solid var(--line)}.slider-label{display:flex;justify-content:space-between;align-items:center;font-size:11px;margin:19px 0 10px}.slider-label output{font-size:11px;font-weight:550;font-variant-numeric:tabular-nums}.slider-label output span{font-size:9px;font-weight:400;color:var(--muted);margin-left:2px}input[type=range]{appearance:none;width:100%;height:4px;border-radius:4px;display:block;margin:0;background:linear-gradient(to right,var(--primary) 0%,var(--primary) var(--value,50%),var(--line) var(--value,50%),var(--line) 100%);cursor:pointer;touch-action:pan-y}input[type=range]::-webkit-slider-thumb{appearance:none;width:12px;height:12px;border-radius:100%;border:2px solid white;background:var(--primary);box-shadow:0 0 0 1px var(--primary)}input[type=range]::-moz-range-thumb{width:9px;height:9px;border-radius:100%;border:2px solid white;background:var(--primary);box-shadow:0 0 0 1px var(--primary)}.range-ends{display:flex;justify-content:space-between;font-size:8px;color:var(--muted);margin-top:9px}.environment{padding-top:18px;margin-top:20px}.environment .section-title{margin-bottom:0}.environment .slider-label{margin-top:14px}.display-controls{border-top:1px solid var(--line);margin-top:21px;padding-top:15px;display:flex;flex-direction:column;gap:14px}.display-controls label{display:flex;align-items:center;justify-content:space-between;font-size:10px;cursor:pointer}.display-controls label>span{display:flex;align-items:center;gap:8px}.display-controls svg{width:14px;height:14px;color:var(--muted)}input[role=switch]{appearance:none;width:27px;height:16px;border-radius:12px;background:oklch(.87 .012 113);position:relative;cursor:pointer;margin:0;transition:background .2s}input[role=switch]:before{content:'';position:absolute;width:12px;height:12px;border-radius:50%;background:white;top:2px;left:2px;transition:transform .2s}input[role=switch]:checked{background:var(--primary)}input[role=switch]:checked:before{transform:translateX(11px)}.sidebar-note{display:flex;align-items:center;gap:9px;color:var(--muted);margin-top:19px}.sidebar-note svg{width:17px;height:17px;color:var(--primary)}.sidebar-note p{margin:0;font-size:9px;line-height:1.65}.simulation{position:relative;min-width:0;background:oklch(.967 .019 170);isolation:isolate;overflow:hidden;min-height:675px}.simulation:fullscreen{height:100vh;width:100vw}.simulation canvas#world{width:100%;height:100%;position:absolute;inset:0;touch-action:none;cursor:grab}.simulation canvas#world:active{cursor:grabbing}.scene-header{position:absolute;top:19px;left:24px;right:20px;display:flex;align-items:center;justify-content:space-between;z-index:1;pointer-events:none}.live-badge{display:flex;align-items:center;gap:7px;font-size:9px;background:oklch(1 0 0 / .8);border:1px solid oklch(.88 .024 150 / .7);padding:8px 10px;border-radius:5px}.live-badge>span:first-child{width:5px;height:5px}.scene-top-actions{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:10px;font-variant-numeric:tabular-nums}.icon-button{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border:0;border-radius:5px;background:transparent}.icon-button:hover{background:oklch(.9 .024 113 / .5)}.icon-button svg{width:16px;height:16px}.scene-top-actions button{pointer-events:auto}.scene-description{position:absolute;top:91px;left:30px;pointer-events:none}.scene-location{font-size:8px;letter-spacing:1.7px;color:var(--primary);font-weight:600}.scene-description h2{font-family:Georgia,'Times New Roman',serif;font-size:29px;line-height:1.17;font-weight:400;letter-spacing:-.7px;margin:12px 0}.scene-description p{font-size:10px;line-height:1.8;color:var(--muted);margin:0}.wind-label{position:absolute;top:91px;right:28px;display:flex;align-items:center;gap:8px;color:var(--muted);font-size:10px;pointer-events:none}.wind-label svg{width:19px;height:19px}.wind-label>span:last-child{margin-left:7px}.scene-hint{position:absolute;bottom:75px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:9px;width:max-content;max-width:90%;border-radius:6px;background:oklch(1 0 0 / .89);border:1px solid oklch(.89 .024 120 / .7);padding:12px 16px;font-size:10px;color:var(--muted);pointer-events:none}.scene-hint svg{width:16px;height:16px;color:var(--primary)}.scene-bottom{position:absolute;left:23px;right:24px;bottom:20px;display:flex;align-items:center;justify-content:space-between;gap:20px}.playback{display:flex;align-items:center;border:1px solid oklch(.83 .03 115);border-radius:5px;padding:2px 4px;background:oklch(1 0 0 / .8);gap:6px}.playback-divider{height:14px;width:1px;background:var(--line)}#speed{background:none;border:0;font-size:11px;min-width:30px;padding:5px}.scene-scale{display:flex;gap:9px;align-items:center;font-size:9px;color:var(--muted)}.scene-scale>span{width:55px;height:6px;border:solid var(--muted);border-width:0 1px 1px}.scene-dimension{font-size:7px;letter-spacing:.8px;color:oklch(.41 .03 115);display:flex;gap:8px}.telemetry{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr 1.2fr;border:1px solid var(--line);border-radius:9px;margin-top:17px;padding:22px 0}.telemetry-intro{display:flex;align-items:center;gap:10px;padding:0 25px}.data-dot{width:7px;height:7px;box-shadow:0 0 0 4px var(--primary-light)}.telemetry-intro strong{display:block;font-size:11px;font-weight:600;margin-bottom:6px}.telemetry-intro small{font-size:9px;color:var(--muted)}.metric{padding:0 25px;border-left:1px solid var(--line)}.metric>span{font-size:9px;color:var(--muted)}.metric>div{display:flex;align-items:baseline;gap:6px;margin-top:7px}.metric strong{font-size:24px;letter-spacing:-.9px;font-weight:550;font-variant-numeric:tabular-nums}.metric small{font-size:9px;color:var(--muted)}.mini-apples{font-size:12px;letter-spacing:3px;margin-left:auto;color:oklch(.62 .12 39)}.energy-metric>div{position:relative}#energy-chart{width:85px;height:27px;margin-left:auto;align-self:center}footer{display:flex;justify-content:space-between;font-size:9px;color:var(--muted);padding:19px 0 24px}footer>span:last-child{display:flex;align-items:center;gap:7px}footer svg{width:13px;height:13px}.tool-options{display:flex;margin:10px 0 0;gap:5px}.tool-options[hidden]{display:none}.option-button{flex:1;border:1px solid var(--line);background:var(--bg);padding:7px 4px;border-radius:5px;font-size:9px}.option-button.selected{background:var(--primary-light);border-color:var(--primary)}.toast{position:absolute;left:50%;top:62px;transform:translate(-50%,-8px);background:var(--ink);color:white;border-radius:6px;padding:10px 16px;font-size:11px;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;max-width:85%;text-align:center;z-index:3}.toast.visible{opacity:1;transform:translate(-50%,0)}dialog{border:1px solid var(--line);border-radius:15px;padding:35px;max-width:530px;width:calc(100% - 32px);color:var(--ink);box-shadow:0 20px 100px oklch(.2 .01 113 / .2)}dialog::backdrop{background:oklch(.2 .01 113 / .38)}.dialog-close{position:absolute;right:15px;top:12px;font-size:25px}dialog h2{font-size:28px;letter-spacing:-.6px}dialog p,dialog li{font-size:13px;line-height:1.7;color:var(--muted)}dialog ul{padding-left:18px;display:flex;flex-direction:column;gap:10px}dialog .model-note{font-size:11px;padding-top:12px;border-top:1px solid var(--line)}.shortcuts{font-size:9px;display:flex;align-items:center;justify-content:center;gap:7px;margin-top:18px}kbd{font:10px monospace;border:1px solid var(--line);border-radius:3px;padding:2px 4px}
@media(min-width:1500px){.workspace{min-height:760px}.simulation{min-height:760px}.sidebar{padding:30px 25px}.tool{padding:14px 9px}.parameters,.environment{margin-top:25px;padding-top:24px}.slider-label{margin-top:23px}.sidebar-note{margin-top:25px}.scene-description{top:105px}}
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@media(max-width:800px){.topbar{height:68px}.brand{font-size:30px}.brand-mark svg{width:25px}.brand-caption{display:none}.experiment-tag{font-size:10px}.about-link{display:none}.topbar #help{display:flex}.topbar nav{gap:12px}main{padding:25px 18px 0}h1{font-size:27px}.page-heading p{font-size:11px;max-width:270px}.eyebrow{font-size:8px}.reset-button{font-size:0;padding:9px}.reset-button svg{width:18px;height:18px}.workspace{display:flex;flex-direction:column;overflow:hidden}.simulation{order:-1;height:560px;min-height:0}.sidebar{border-right:0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:22px;padding:22px}.tools-section{grid-row:span 2}.parameters{border:0;padding:0;margin:0}.environment{margin:0;padding-top:17px}.display-controls{margin:0;grid-column:1/-1;flex-direction:row;justify-content:space-between;padding-top:19px}.display-controls label{width:46%}.sidebar-note{display:none}.section-title h2{font-size:12px}.small-label{display:none}.tool{padding:12px 8px}.tool strong{font-size:10px}.tool small{font-size:8px}.tool kbd{display:none}.scene-description h2{font-size:26px}.scene-description{top:76px}.wind-label{top:82px}.telemetry{grid-template-columns:repeat(4,1fr);padding:17px 0}.telemetry-intro{grid-column:1/-1;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:15px}.telemetry-intro>div{display:flex;align-items:center;gap:12px}.telemetry-intro strong{margin:0}.metric:nth-child(2){border:0}.metric{padding:0 14px}.metric strong{font-size:23px}.metric>span{font-size:8px}.metric small{font-size:8px}#energy-chart{display:none}.scene-hint{font-size:9px;padding:10px 12px}.scene-scale{margin-left:auto}footer{font-size:8px}}
@media(max-width:460px){main{padding:22px 12px 0}.page-heading{gap:8px}.page-heading p{max-width:270px}.sidebar{padding:18px 13px;gap:18px 14px}.simulation{height:510px}.scene-description{left:20px;top:72px}.scene-description h2{font-size:22px}.scene-header{left:17px;right:13px}.wind-label{right:18px;font-size:9px}.scene-hint{bottom:70px;max-width:90%;font-size:8px}.scene-hint svg{width:14px}.tool{gap:7px;padding:10px 4px}.tool-icon svg{width:19px}.tool strong{font-size:9px}.tool small{font-size:7px}.shake-button{font-size:9px}.section-title h2{font-size:11px}.slider-label{font-size:9px}.slider-label output{font-size:9px}.metric{padding:0 10px}.metric>span{font-size:7px}.metric strong{font-size:22px}.metric small{font-size:7px}.telemetry-intro{padding-left:18px}.scene-scale{font-size:8px}.display-controls label{font-size:9px}footer>span:last-child{display:none}.range-ends{font-size:7px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}
@media(max-width:460px){.scene-description h2{display:none}.tool strong{font-size:11px}.tool small{font-size:9px}.section-title h2{font-size:12px}.slider-label{font-size:10px}.range-ends{font-size:8px}.scene-hint{font-size:10px}.metric>span{font-size:8px}}