:root{color-scheme:dark;--bg:#000;--panel:#0d0a14;--raised:#150f22;--line:#241b3a;--control:#766595;--text:#f1edfb;--muted:#948fb0;--violet:#8b5cf6;--bright:#a78bfa;--deep:#6d28d9;--font:Inter,system-ui,sans-serif;--display:'Space Grotesk',Inter,sans-serif;--mono:'IBM Plex Mono',monospace}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse 900px 520px at 12% -8%,#8b5cf626,transparent),var(--bg);color:var(--text);font:15px/1.5 var(--font);min-height:100vh}.topbar{height:68px;padding:0 max(22px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#0d0a14dd;position:sticky;top:0;backdrop-filter:blur(14px);z-index:2}.brand{color:var(--text);text-decoration:none;font-family:var(--display);display:grid}.brand strong{font-size:1.15rem;letter-spacing:.06em}.brand small{font:600 .58rem var(--mono);letter-spacing:.13em;color:var(--muted)}.alpha,.status,.eyebrow{font:600 .68rem var(--mono);letter-spacing:.09em;color:var(--bright)}.alpha{border:1px solid var(--line);border-radius:99px;padding:6px 10px}.shell{max-width:1180px;margin:auto;padding:42px 22px 60px}.intro{margin-bottom:30px}.intro h1{font:700 clamp(2.6rem,6vw,4.8rem)/.98 var(--display);margin:10px 0 16px;letter-spacing:-.055em}.intro h1 span{color:var(--bright)}.lede{max-width:650px;color:var(--muted);font-size:1.05rem}.studio{display:grid;grid-template-columns:minmax(320px,.85fr) minmax(0,1.15fr);gap:20px;align-items:start}.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.section-head h2{font:600 1.2rem var(--display);margin:3px 0}.section-head .eyebrow{margin:0}label{display:block;font-size:.82rem;font-weight:600;margin:13px 0 6px}input,select{width:100%;min-height:44px;border:1px solid var(--control);border-radius:8px;background:var(--raised);color:var(--text);padding:10px 12px;font:inherit}input[type=color]{padding:5px;height:44px}button{font:600 .88rem var(--font);cursor:pointer;min-height:44px;border-radius:8px;padding:10px 14px}.primary{width:100%;background:var(--deep);border:1px solid var(--deep);color:white;margin-top:15px}.primary:hover{background:#5b21b6}.secondary{background:transparent;border:1px solid var(--control);color:var(--text)}.small{min-width:74px}.hint{font-size:.76rem;color:var(--muted);margin:8px 0}.message{min-height:20px;font-size:.8rem;color:var(--bright)}.rule{height:1px;background:var(--line);margin:22px 0}.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}.check{display:flex;align-items:center;gap:9px;font-weight:500}.check input{width:18px;min-height:18px;accent-color:var(--violet)}.urlrow{display:flex;gap:8px}.urlrow input{min-width:0;font: .75rem var(--mono)}.meta{margin-top:12px}.meta div{background:var(--raised);border:1px solid var(--line);padding:10px;border-radius:8px;display:grid}.meta span{font:600 .62rem var(--mono);color:var(--muted)}.preview-col{min-width:0}.preview-col>.section-head{padding:2px 4px}.preview-stage{min-height:245px;border:1px dashed #76659566;border-radius:10px;background-color:#08060d;background-image:linear-gradient(45deg,#ffffff08 25%,transparent 25%),linear-gradient(-45deg,#ffffff08 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ffffff08 75%),linear-gradient(-45deg,transparent 75%,#ffffff08 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0;display:grid;place-items:center;padding:24px}.preview-stage iframe{border:0;width:100%;height:150px;background:transparent}.tips{margin-top:16px}.tips h3{font:600 1rem var(--display);margin:4px 0}.tips p:last-child{color:var(--muted);font-size:.84rem}footer{text-align:center;color:var(--muted);font-size:.72rem;padding:22px;border-top:1px solid var(--line)}@media(max-width:800px){.studio{grid-template-columns:1fr}.shell{padding-top:28px}.preview-col{grid-row:1}.panel{padding:16px}}@media(max-width:420px){.two{gap:8px}.urlrow{flex-direction:column}.topbar{padding:0 16px}}
.preview-tools{display:flex;align-items:center;justify-content:flex-end;gap:10px;margin:0 0 8px}.preview-tools label{margin:0;color:var(--muted)}.preview-tools select{width:auto;min-width:180px}.preview-stage{transition:background .2s ease}.preview-stage.scene-dark{background:#171717;background-image:none}.preview-stage.scene-light{background:#e8e8e8;background-image:none}.preview-stage.scene-orange{background:#ff7900;background-image:none}