:root{color-scheme:dark;--bg:#101214;--panel:#191c1f;--line:#ffffff12;--text:#f0f0ee;--muted:#9b9fa4;--accent:#dfb789;--danger:#f3a294;font-family:Inter,"Segoe UI",Arial,sans-serif;font-synthesis:none}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-size:14px}
button,input,select{font:inherit}
button,select,input{accent-color:var(--accent)}
button{cursor:pointer}
button:disabled,select:disabled,input:disabled{cursor:not-allowed;opacity:.38}
button,select{transition:background .18s,border-color .18s,color .18s}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
[hidden]{display:none!important}
.topbar{height:80px;display:flex;align-items:center;gap:32px;padding:0 32px;border-bottom:1px solid var(--line);background:#151719}
.brand{color:var(--text);display:flex;gap:14px;align-items:center;text-decoration:none;font-weight:650;font-size:21px;letter-spacing:3px;white-space:nowrap}
.brand-studio{color:var(--muted);font-size:12px;letter-spacing:3px;margin-left:10px;font-weight:500}
.brand-mark{display:block;width:21px;height:27px;transform:skewY(-25deg);border:2px solid var(--text);position:relative}
.brand-mark:after{content:"";position:absolute;top:10px;left:-2px;right:-2px;border-top:2px solid var(--text)}
.descriptor{font-size:12px;color:var(--muted);border-left:1px solid #ffffff24;padding-left:28px}
.connection{margin-left:auto;display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);white-space:nowrap}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.status-dot[data-state="ready"]{background:#9bc5ae;box-shadow:0 0 10px #9bc5ae30}
.status-dot[data-state="error"]{background:var(--danger)}
.workspace{height:calc(100vh - 80px);height:calc(100dvh - 80px);display:grid;grid-template-columns:minmax(0,1fr) 370px;min-height:460px}
.stage{position:relative;min-width:0;overflow:hidden;background:radial-gradient(ellipse at 48% 46%,#303439 0,#181b1e 48%,#0e1012 90%)}
#scene{display:block;position:absolute;width:100%;height:100%;border:0;background:transparent}
.stage-heading{position:absolute;left:36px;top:34px;pointer-events:none;text-shadow:0 2px 16px #0009}
.eyebrow{font-size:10px;font-weight:600;letter-spacing:2.3px;color:var(--muted)}
h1{font-size:clamp(26px,3vw,46px);font-weight:450;letter-spacing:-1.5px;line-height:1.12;margin:12px 0}
.stage-heading p{color:#c3c6ca;font-size:12px;margin:0}
.stage-bottom{position:absolute;bottom:24px;left:30px;right:30px;display:flex;justify-content:space-between;align-items:center;gap:20px;pointer-events:none}
.scene-hint{font-size:11px;color:#c0c3c7;text-shadow:0 1px 5px #000}
.camera-tools{display:flex;align-items:center;gap:12px;padding:10px 12px 10px 16px;border:1px solid #ffffff15;background:#171a1ee8;border-radius:12px;backdrop-filter:blur(12px);pointer-events:auto}
.camera-tools label{font-size:11px;color:var(--muted)}
.camera-tools input{width:90px;height:22px;margin:0}
.camera-tools output{width:42px;font-size:11px;font-variant-numeric:tabular-nums}
.icon-button{width:32px;height:32px;border-radius:7px;color:var(--text);border:1px solid var(--line);background:#ffffff05;font-size:23px;line-height:1}
.icon-button:hover:enabled{background:#ffffff12}
.sidebar{background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0;min-width:0}
.sidebar-top{padding:26px 24px 22px}
.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.small-tag{border:1px solid #ffffff20;color:var(--muted);border-radius:4px;font-size:10px;padding:3px 6px;letter-spacing:1px}
.field-label{display:block;color:var(--muted);font-size:12px;margin-bottom:9px}
select{width:100%;min-height:46px;padding:10px 35px 10px 13px;background-color:#23272b;color:var(--text);border:1px solid #ffffff14;border-radius:8px;cursor:pointer}
select:hover:enabled{border-color:#ffffff40}
.tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:0 14px;border-bottom:1px solid var(--line);flex-shrink:0}
.tabs button{background:none;border:0;border-bottom:2px solid transparent;color:var(--muted);font-size:12px;padding:15px 2px;white-space:nowrap}
.tabs button:hover{color:var(--text)}
.tabs button[aria-selected="true"]{color:var(--accent);border-bottom-color:var(--accent)}
.tabs button:focus-visible{outline-offset:-4px}
.panel-scroll{overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#454a50 transparent;flex:1;min-height:0}
.panel{padding:26px 24px 30px}
.panel-heading{margin-bottom:28px}
h2{margin:0;font-size:23px;font-weight:450;letter-spacing:-.6px;line-height:1.35}
.panel-heading h2 span{color:var(--muted)}
.panel-heading p,.note{font-size:12px;line-height:1.7;color:var(--muted);margin:12px 0 0}
.control-group{margin:0 0 26px;padding:0 0 25px;border:0;border-bottom:1px solid var(--line);min-width:0}
.control-group:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
h3,.control-group legend{font-size:13px;font-weight:550;margin:0 0 13px;padding:0}
.preset-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.preset{display:flex;position:relative;min-width:0}
.preset input{position:absolute;opacity:0;width:1px;height:1px}
.preset span{width:100%;display:flex;align-items:center;min-height:50px;padding:12px 14px;border:1px solid #ffffff13;border-radius:8px;background:#ffffff03;font-size:12px;line-height:1.5;color:#c3c6c9;cursor:pointer;overflow-wrap:anywhere}
.preset span:before{content:"";flex-shrink:0;width:7px;height:7px;border:1px solid #62686f;border-radius:50%;margin-right:10px}
.preset input:checked+span{border-color:#dfb789a0;background:#dfb7890b;color:var(--text)}
.preset input:checked+span:before{background:var(--accent);border-color:var(--accent)}
.preset input:focus-visible+span{outline:2px solid var(--accent);outline-offset:3px}
.preset input:disabled+span{opacity:.4;cursor:not-allowed}
.custom-color{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:12px;padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-size:12px}
.custom-color small{display:block;margin-top:5px;color:var(--muted);font-size:11px}
.custom-color input{width:48px;height:40px;flex-shrink:0;padding:3px;border:1px solid #ffffff24;border-radius:6px;background:#23272b;cursor:pointer}
.custom-color input:disabled{cursor:not-allowed}
.empty-state{color:var(--muted);font-size:12px;line-height:1.7;padding:16px;background:#ffffff03;border:1px dashed #ffffff17;border-radius:8px;margin:0}
.button{border:1px solid #ffffff20;background:#ffffff04;color:var(--text);border-radius:8px;min-height:43px;padding:10px 14px;font-size:12px;line-height:1.4}
.button:hover:enabled{background:#ffffff0c;border-color:#ffffff40}
.primary{background:var(--accent);color:#191714;border-color:var(--accent);font-weight:600}
.primary:hover:enabled{background:#ebc99f;border-color:#ebc99f}
.button-pair{display:flex;gap:8px;margin-bottom:14px}
.button-pair>*{flex:1}
.toggle-row{display:flex;align-items:center;gap:12px;min-height:56px;border-bottom:1px solid var(--line);position:relative;cursor:pointer;font-size:13px}
.toggle-row>span:first-child{flex:1;overflow-wrap:anywhere}
.toggle-row input{position:absolute;right:0;opacity:0;width:38px;height:22px}
.switch{width:36px;height:21px;border-radius:20px;background:#44494e;position:relative;flex-shrink:0;pointer-events:none}
.switch:after{content:"";position:absolute;left:3px;top:3px;width:15px;height:15px;background:#b7bbc0;border-radius:50%;transition:transform .18s}
.toggle-row input:checked+.switch{background:var(--accent)}
.toggle-row input:checked+.switch:after{background:#25221d;transform:translateX(15px)}
.toggle-row input:focus-visible+.switch{outline:2px solid var(--accent);outline-offset:4px}
.toggle-row input:disabled+.switch{opacity:.35}
.toggle-row:has(input:disabled){cursor:not-allowed}
.window-row{display:flex;flex-direction:column;gap:10px;padding:14px 0;border-bottom:1px solid var(--line);font-size:13px}
.window-row select{min-width:0}
.driving-toggle{background:#ffffff04;padding:16px;border:1px solid var(--line);border-radius:10px;margin-bottom:26px}
.driving-toggle input{right:16px}
.driving-toggle strong{font-size:13px;font-weight:500}
.driving-toggle small{display:block;color:var(--muted);font-size:11px;margin-top:7px;line-height:1.5}
.keyboard-guide{margin:0 0 26px}
.keyboard-guide p{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);gap:8px}
kbd{display:inline-block;min-width:24px;text-align:center;padding:5px;background:#252a2e;border:1px solid #ffffff13;border-bottom-width:2px;border-radius:5px;font-family:inherit;font-size:11px;color:var(--text)}
.full-width{width:100%}
#scene-settings{padding:0;margin:0;border:0;min-width:0}
#scene-settings select{margin-bottom:22px}
.sidebar-footer{border-top:1px solid var(--line);padding:14px 24px;display:flex;align-items:center;gap:10px;min-height:57px}
.sidebar-footer p{margin:0;color:var(--muted);font-size:11px;line-height:1.5;overflow-wrap:anywhere}
.sidebar-footer p[data-error="true"]{color:var(--danger)}
.footer-mark{color:var(--accent);font-size:20px}
.scene-overlay{position:absolute;inset:0;display:grid;place-items:center;padding:24px;background:#101214d9;backdrop-filter:blur(8px);z-index:2}
.load-card{text-align:center;max-width:360px}
.load-card h2{font-size:22px}
.load-card p{color:var(--muted);font-size:13px;line-height:1.7;overflow-wrap:anywhere}
.load-card button{margin-top:10px}
.loader{display:inline-block;width:28px;height:28px;border:1px solid #dfb78930;border-top-color:var(--accent);border-radius:50%;margin-bottom:22px;animation:spin 1.2s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.drive-hud{position:absolute;top:34px;right:28px;padding:14px 18px;border:1px solid var(--line);border-radius:12px;background:#15181be6;pointer-events:none;backdrop-filter:blur(12px)}
.drive-hud>div{display:flex;align-items:baseline;gap:9px}
.drive-hud output{font-size:38px;font-weight:350;font-variant-numeric:tabular-nums;line-height:1}
.drive-hud div>span{font-size:11px;color:var(--muted)}
.collision{display:block;font-size:10px;color:var(--muted);margin-top:10px}
.collision[data-active="true"]{color:var(--danger)}
.touch-controls{display:none;margin:0 0 22px;text-align:center;touch-action:none;user-select:none}
.touch-controls>div{display:flex;justify-content:center;gap:8px;margin:8px 0}
.touch-controls button{min-width:60px;min-height:48px;touch-action:none;user-select:none;-webkit-user-select:none}
.touch-controls button[data-held="true"]{background:#dfb78930;border-color:var(--accent)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:8px;left:8px;transform:translateY(-150%);z-index:10;background:var(--accent);color:#101214;padding:12px;border-radius:5px}
.skip-link:focus{transform:none}
.noscript{position:fixed;inset:80px 0 auto;background:#482f29;color:#fff;padding:20px;text-align:center;z-index:5}
@media(min-width:1600px){.workspace{grid-template-columns:minmax(0,1fr) 410px}.panel,.sidebar-top{padding-left:30px;padding-right:30px}}
@media(max-width:1150px){.workspace{grid-template-columns:minmax(0,1fr) 340px}.scene-hint{display:none}.stage-bottom{justify-content:flex-end}.descriptor{display:none}.stage-heading{left:24px}.drive-hud{top:145px;right:20px}}
@media(max-width:760px){.topbar{height:68px;padding:0 18px;gap:12px}.brand{font-size:18px;gap:10px;letter-spacing:2px}.brand-studio{font-size:10px;margin-left:5px;letter-spacing:2px}.connection{font-size:10px}.brand-mark{width:17px;height:22px}.brand-mark:after{top:8px}.workspace{display:flex;flex-direction:column;height:auto;min-height:0}.stage{height:58svh;min-height:330px;max-height:640px;flex-shrink:0}.stage-heading{top:24px;left:20px}.stage-heading h1{font-size:29px}.stage-heading p{font-size:11px}.sidebar{border-left:0;border-top:1px solid var(--line)}.sidebar-top{padding:22px 20px 18px}.section-heading{margin-bottom:16px}.panel-scroll{max-height:60svh;min-height:260px}.panel{padding:24px 20px}.tabs{position:sticky;top:0;background:var(--panel);z-index:3}.tabs button{font-size:13px;min-height:48px}.stage-bottom{left:16px;right:16px;bottom:16px}.camera-tools{padding:8px 10px;gap:10px}.camera-tools input{width:100px}.drive-hud{top:120px;right:18px}.drive-hud output{font-size:30px}.sidebar-footer{padding:14px 20px}.descriptor{display:none}}
@media(pointer:coarse){.touch-controls{display:block}.button,.icon-button{min-height:44px}.icon-button{min-width:44px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}