:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#f4f4f5;background:#090909;--line:#28282c;--muted:#a1a1aa;--card:#141416;--accent:#f59e0b;--accent2:#fbbf24}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 75% -10%,#3a2410 0,transparent 28%),#090909;color:#f4f4f5}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 max(18px,calc((100vw - 760px)/2));border-bottom:1px solid #202024;background:rgba(9,9,9,.82);backdrop-filter:blur(16px);position:sticky;top:0;z-index:5}.brand{font-weight:800;display:flex;align-items:center;gap:10px}.brandmark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(145deg,var(--accent2),#d97706);color:#1b1204;font-size:13px}.badge{font-size:12px;color:#d4d4d8;border:1px solid #313136;padding:7px 10px;border-radius:999px}.shell{max-width:760px;margin:auto;padding:28px 16px 60px}.hero{padding:20px 4px 22px}.eyebrow{font-size:12px;letter-spacing:.2em;font-weight:800;color:var(--accent);margin:0 0 12px}.hero h1{font-size:clamp(32px,8vw,55px);line-height:.98;letter-spacing:-.045em;margin:0;max-width:680px}.lead{color:#b9b9c0;font-size:17px;line-height:1.55;max-width:620px}.card{background:linear-gradient(180deg,#171719,#121214);border:1px solid var(--line);border-radius:22px;padding:18px;margin:14px 0;box-shadow:0 18px 60px rgba(0,0,0,.2)}.stephead{display:flex;gap:13px;align-items:flex-start;margin-bottom:16px}.stephead>span{min-width:34px;height:34px;border-radius:50%;background:#242428;display:grid;place-items:center;font-weight:800;color:var(--accent2)}h2{font-size:20px;margin:2px 0 3px}.stephead p{margin:0;color:var(--muted);font-size:14px}.dropzone{min-height:160px;border:1.5px dashed #45454d;border-radius:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;background:#0e0e10;transition:.2s}.dropzone:hover,.dropzone.drag{border-color:var(--accent);background:#16120c}.dropicon{font-size:30px;color:var(--accent);margin-bottom:6px}.dropzone small{color:var(--muted);margin-top:5px}.thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}.thumb{position:relative;aspect-ratio:1;border-radius:12px;overflow:hidden;border:1px solid #303036;background:#0b0b0d}.thumb img{width:100%;height:100%;object-fit:cover}.thumb button{position:absolute;top:5px;right:5px;width:25px;height:25px;border:0;border-radius:50%;background:rgba(0,0,0,.75);color:#fff}.thumb .front{position:absolute;left:5px;bottom:5px;background:rgba(0,0,0,.72);font-size:9px;padding:3px 5px;border-radius:6px}.material-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.material{appearance:none;text-align:left;border:1px solid #303036;border-radius:14px;padding:13px;background:#101012;color:#fff}.material b,.material small{display:block}.material small{color:var(--muted);margin-top:3px}.material.active{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:#1b160d}.settings{display:grid;gap:12px;margin:16px 0}.settings label:not(.check){display:flex;justify-content:space-between;align-items:center;color:#d4d4d8}.settings select{background:#0e0e10;color:#fff;border:1px solid #34343a;border-radius:10px;padding:9px 12px}.check{display:flex;align-items:center;gap:10px;color:#d4d4d8;font-size:14px}.primary,.secondary{width:100%;border:0;border-radius:14px;padding:15px 18px;font-weight:800;font-size:15px}.primary{background:linear-gradient(135deg,var(--accent2),#ea8c08);color:#1c1202}.primary:disabled{opacity:.38}.secondary{background:#242428;color:#fff;border:1px solid #34343a}.fineprint{font-size:12px;line-height:1.45;color:#777781;margin:10px 2px 0}.hidden{display:none!important}.progress{height:11px;background:#26262b;border-radius:99px;overflow:hidden}.progress>div{height:100%;width:0;background:linear-gradient(90deg,#d97706,var(--accent2));transition:width .45s}.statusline{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;margin-top:8px}.viewer-wrap{height:430px;border-radius:16px;overflow:hidden;background:radial-gradient(circle,#2b2b30,#0a0a0c);border:1px solid #2c2c31}.viewer-wrap model-viewer{width:100%;height:100%}.downloads{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;margin:12px 0}.download{display:flex;align-items:center;justify-content:space-between;text-decoration:none;border:1px solid #34343a;background:#101012;color:#fff;border-radius:13px;padding:13px}.download small{color:var(--muted)}.error{border-color:#7f1d1d;background:#1c0d0d}.error p{color:#fecaca;white-space:pre-wrap}footer{text-align:center;color:#62626b;font-size:11px;padding:0 18px 40px}@media(max-width:520px){.material-grid{grid-template-columns:1fr 1fr}.thumbs{grid-template-columns:repeat(3,1fr)}.viewer-wrap{height:360px}.downloads{grid-template-columns:1fr}.shell{padding-top:14px}}