:root{color-scheme:dark;--bg:#07111a;--panel:#101f2c;--line:#243845;--muted:#9cb2c1;--ink:#eef7f8;--cyan:#6de3d0}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button,a{ -webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}header,main,footer{max-width:1540px;margin:auto}header{min-height:88px;padding:20px 40px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:2px}.brand small{display:block;font-size:9px;color:var(--muted);letter-spacing:2.2px}.mark{border:1px solid var(--cyan);color:var(--cyan);border-radius:50%;width:38px;height:38px;display:grid;place-items:center}nav{display:flex;gap:26px;font-size:12px;color:var(--muted)}main{padding:40px}.intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;gap:22px}.eyebrow{font-size:10px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--cyan);margin:0 0 8px}h1{font-size:clamp(30px,3vw,46px);letter-spacing:-1.8px;line-height:1.15;margin:0 0 12px;font-weight:550}.lede{color:var(--muted);margin:0}.revision{font-size:10px;letter-spacing:1.2px;white-space:nowrap}.revision small{display:block;color:var(--muted);font-size:11px;letter-spacing:0;margin:5px 0 0 14px}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#edc47c;margin-right:8px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px}.stage-column{min-width:0}.modes{display:flex;gap:4px;padding:5px;background:#10202b;border:1px solid var(--line);border-radius:12px 12px 0 0;flex-wrap:wrap}.modes button{flex:1;min-width:140px;padding:11px 9px;color:var(--muted);border:0;background:transparent;border-radius:7px;font-size:12px}.modes button[aria-pressed=true]{background:#23463f;color:#adf5e6}#stage{height:560px;min-height:400px;position:relative;background:radial-gradient(ellipse at 55% 40%,#213c4a 0%,#112631 46%,#0b1a25 100%);overflow:hidden;border:1px solid var(--line);border-top:0}canvas{display:block;width:100%;height:100%;cursor:grab}canvas:active{cursor:grabbing}.stage-top{position:absolute;left:24px;right:20px;top:22px;display:flex;justify-content:space-between;align-items:flex-start;pointer-events:none}.stage-top h2{font-size:19px;letter-spacing:-.4px;font-weight:500;margin:0}.stage-top p{font-size:11px;color:var(--muted);margin:3px 0}.stage-top .eyebrow{font-size:9px;opacity:.7}.stage-top button{pointer-events:auto;background:#15303cbb;border:1px solid #39515c;color:var(--ink);font-size:23px;width:35px;line-height:32px;border-radius:6px}.stage-bottom{position:absolute;bottom:16px;left:22px;right:22px;display:flex;justify-content:space-between;font-size:10px;color:var(--muted);pointer-events:none;gap:12px}#dimensions{color:#d3e8ed;font-variant-numeric:tabular-nums}#loadStatus{position:absolute;bottom:50px;left:22px;color:var(--cyan);font-size:11px;max-width:80%}#loadStatus[data-error=true]{color:#ffc99a;background:#14212c;padding:12px}.view-controls{border:1px solid var(--line);border-top:0;border-radius:0 0 12px 12px;padding:12px;display:flex;align-items:center;gap:15px;font-size:11px;color:var(--muted);flex-wrap:wrap}.angles{display:flex;gap:5px;margin-right:auto;flex-wrap:wrap}.view-controls button,.inspector button{border:1px solid #304650;border-radius:6px;background:transparent;color:#c8dce2;padding:6px 11px;font-size:11px}.view-controls label{display:flex;gap:5px;align-items:center}.facts{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line);margin-top:18px}.fact{padding:12px 8px}.fact strong{display:block;font-size:23px;font-weight:500}.fact span{font-size:10px;color:var(--muted)}.caption{font-size:11px;color:var(--muted);margin:14px 0 0;max-width:900px}aside{display:flex;flex-direction:column;gap:16px;min-width:0}.inspector,.part-library{border:1px solid var(--line);background:var(--panel);border-radius:12px;padding:20px}.inspector h2{font-size:18px;font-weight:500;line-height:1.35;margin:0 0 14px}.tag{display:inline-block;font-size:10px;background:#223d46;color:#b9e6df;padding:3px 7px;border-radius:4px}dl{display:grid;grid-template-columns:1fr 1.4fr;gap:10px 12px;font-size:10px;margin:18px 0}dt{color:var(--muted)}dd{margin:0;text-align:right;overflow-wrap:anywhere}#partNote{font-size:11px;color:var(--muted);line-height:1.7}.library-head{display:flex;justify-content:space-between;align-items:center}.library-head h2{font-size:13px;font-weight:500;margin:0}.library-head span{font-size:10px;color:var(--muted)}input[type=search],select{background:#0a1923;border:1px solid #304650;border-radius:6px;color:#d5e5eb;padding:9px 10px;width:100%;font-size:11px;margin-top:12px}select{margin-top:7px}#partList{height:242px;overflow:auto;margin-top:12px;scrollbar-width:thin}#partList button{display:block;text-align:left;background:transparent;color:#d9e8ed;border:0;border-bottom:1px solid #243845;width:100%;padding:10px 3px;line-height:1.45;font-size:11px}#partList button:hover,#partList button[aria-pressed=true]{color:var(--cyan);background:#1b353d}#partList small{display:block;color:var(--muted);font-size:9px;margin-top:3px}.next-step{border-top:1px solid var(--line);margin-top:40px;padding-top:30px;display:flex;gap:35px;justify-content:space-between;align-items:center}.next-step h2{font-size:22px;letter-spacing:-.5px;font-weight:500;margin:0 0 8px}.next-step p:last-child{font-size:12px;color:var(--muted);max-width:760px;margin:0}.primary{display:inline-block;flex-shrink:0;background:var(--cyan);color:#0b302d;border:0;border-radius:8px;padding:13px 18px;font-size:12px;font-weight:600}footer{display:flex;justify-content:space-between;gap:20px;padding:24px 40px;border-top:1px solid var(--line);color:#7794a5;font-size:10px}#configHash{font-family:monospace;overflow-wrap:anywhere}.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}#stage:fullscreen{height:100vh;width:100vw;border:0}.empty{font-size:11px;color:var(--muted)}@media(min-width:1600px){#stage{height:650px}}@media(max-width:1050px){main{padding:28px}.workspace{grid-template-columns:minmax(0,1fr) 270px}#stage{height:520px}.modes button{min-width:120px}.next-step{align-items:flex-start;flex-direction:column;gap:20px}}@media(max-width:760px){header{padding:16px 20px;min-height:76px}nav{gap:14px;font-size:10px}.brand{font-size:11px;letter-spacing:1px}.brand small{font-size:8px}.mark{width:30px;height:30px}main{padding:25px 16px}.intro{align-items:flex-start;flex-direction:column;gap:18px}.revision small{display:inline;margin-left:10px}.workspace{display:block}#stage{height:490px}.stage-top{left:16px;top:16px}.stage-bottom{left:16px;right:16px;flex-direction:column;gap:2px}.facts{grid-template-columns:repeat(4,1fr)}.fact strong{font-size:20px}.fact span{font-size:9px}aside{margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:12px}.inspector,.part-library{padding:16px}#partList{height:245px}footer{padding:20px 16px;flex-direction:column;gap:8px}}@media(max-width:500px){aside{display:flex}.part-library #partList{height:230px}.modes button{min-width:130px;font-size:11px}#stage{height:420px}.stage-top h2{font-size:16px}.view-controls{gap:10px}.angles{width:100%}.angles button{padding:6px 9px}.facts{grid-template-columns:repeat(2,1fr)}.fact{padding:10px}.primary{font-size:11px}nav a:last-child{display:none}}