:root{--bg:#0b0b0f;--panel:#15151c;--panel2:#1d1d27;--line:#2a2a37;--text:#f3f2f7;--muted:#9a99a8;--accent:#b9a2ff;--radius:20px;font-family:"Google Sans","Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);color:var(--text)}
body{display:flex;flex-direction:column}
.bar{display:flex;gap:24px;align-items:center;padding:12px 20px;border-bottom:1px solid var(--line);background:var(--panel)}
.brand{display:flex;gap:12px;align-items:center;min-width:220px}
.brand .q{width:38px;height:38px;border-radius:14px;background:var(--accent);color:#17102e;display:grid;place-items:center;font-weight:800;font-size:20px}
.brand small{display:block;color:var(--muted);font-size:12px}
.progress{flex:1;min-width:0}
.progress-top{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px}
.track{height:8px;border-radius:99px;background:var(--panel2);overflow:hidden}
#p-bar{height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#7fbaff,#b9a2ff,#ff9ecb);transition:width .6s ease}
.muted{color:var(--muted);font-size:12px;margin-top:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.toggle{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--muted);white-space:nowrap}
.layout{flex:1;display:grid;grid-template-columns:1fr 340px;min-height:0}
.stage{position:relative;min-height:0;background:radial-gradient(120% 90% at 50% 20%,#1a1a26 0%,#0b0b0f 70%)}
.stage canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.placeholder{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted)}
.caption{position:absolute;left:24px;bottom:20px;font-size:14px;color:var(--muted);pointer-events:none}
.caption strong{display:block;color:var(--text);font-size:22px}
.errors{position:absolute;left:16px;right:16px;top:16px;margin:0;padding:12px 14px;border-radius:14px;background:#3a1420;color:#ffc9d4;font-size:12px;white-space:pre-wrap;max-height:40%;overflow:auto}
.panel{border-left:1px solid var(--line);background:var(--panel);padding:18px;overflow:auto}
.panel h2{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:18px 0 10px}
.panel h2:first-child{margin-top:0}
#controls{margin-top:18px}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:6px;font-size:13px}
.steps li{display:flex;gap:10px;align-items:center;color:var(--muted)}
.steps li::before{content:"";width:10px;height:10px;border-radius:50%;border:2px solid var(--line);flex:none}
.steps li.done{color:var(--text)}
.steps li.done::before{background:#7be0b0;border-color:#7be0b0}
.steps li.doing{color:var(--text)}
.steps li.doing::before{border-color:var(--accent);background:var(--accent);animation:pulse 1.2s infinite}
@keyframes pulse{50%{opacity:.35}}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);background:var(--panel2);color:var(--text);padding:8px 14px;border-radius:99px;font:inherit;font-size:13px;cursor:pointer}
.chip.active{background:var(--accent);border-color:var(--accent);color:#17102e;font-weight:600}
.row{display:grid;grid-template-columns:92px 1fr 40px;gap:10px;align-items:center;font-size:13px;margin:8px 0}
.row output{color:var(--muted);text-align:right;font-variant-numeric:tabular-nums}
input[type=range]{width:100%;accent-color:var(--accent)}
.seed{display:flex;gap:8px}
.seed input{flex:1;min-width:0;background:var(--panel2);border:1px solid var(--line);color:var(--text);border-radius:12px;padding:9px 12px;font:inherit;font-size:13px}
.swatches{display:flex;gap:8px;flex-wrap:wrap}
.swatch{width:30px;height:30px;border-radius:50%;border:2px solid transparent;cursor:pointer;background:var(--c)}
.swatch.active{border-color:#fff}
textarea.spec{width:100%;height:170px;background:var(--panel2);border:1px solid var(--line);color:#cfd0e6;border-radius:12px;padding:10px;font:11px/1.45 ui-monospace,Menlo,monospace;resize:vertical}
@media (max-width:860px){.layout{grid-template-columns:1fr;grid-template-rows:56vh auto}.panel{border-left:0;border-top:1px solid var(--line)}.bar{flex-wrap:wrap;gap:12px}.brand{min-width:0}}
.row{grid-template-columns:118px 1fr 38px}
#reset{margin-top:8px}