:root{--bg: #14161b;--panel: #1c1f27;--panel-2: #232732;--line: #2e323d;--text: #e6e9ef;--muted: #8a92a3;--accent: #ff8c42;--accent-2: #4a90d9;--radius: 10px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.app{display:grid;grid-template-columns:340px 1fr;height:100vh;height:100dvh}.sidebar{background:var(--panel);border-right:1px solid var(--line);overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:14px}.brand{display:flex;align-items:center;gap:12px}.brand .logo{font-size:30px}.brand h1{font-size:19px;margin:0}.brand p{margin:2px 0 0;color:var(--muted);font-size:12px}.panel{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);padding:14px}.panel h2{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 12px}.dropzone{border:2px dashed var(--line);border-radius:var(--radius);padding:22px 12px;text-align:center;cursor:pointer;color:var(--muted);font-size:13px;transition:border-color .15s,background .15s}.dropzone:hover,.dropzone.over{border-color:var(--accent);background:#ff8c420f}.dropzone strong{color:var(--text)}.dropzone small{color:var(--muted)}.samples{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:10px;font-size:12px;color:var(--muted)}.samples button{background:var(--panel);border:1px solid var(--line);color:var(--text);padding:5px 10px;border-radius:6px;cursor:pointer;font-size:12px}.samples button:hover{border-color:var(--accent)}.params{display:flex;flex-direction:column;gap:14px}.ctrl{display:flex;flex-direction:column;gap:6px}.ctrl-label{display:flex;justify-content:space-between;font-size:13px;color:var(--text)}.ctrl-label em{font-style:normal;color:var(--accent);font-variant-numeric:tabular-nums}input[type=range]{width:100%;accent-color:var(--accent)}.seg{display:flex;gap:4px;background:var(--panel);padding:3px;border-radius:8px;border:1px solid var(--line)}.seg button{flex:1;background:transparent;border:none;color:var(--muted);padding:7px 8px;border-radius:6px;cursor:pointer;font-size:13px}.seg.col{flex-direction:column}.seg.col button{text-align:left}.seg button.active{background:var(--accent);color:#1a1208;font-weight:600}.seg button:disabled{opacity:.4;cursor:not-allowed}.toggle{display:flex;align-items:center;gap:8px;font-size:13px;cursor:pointer}.toggle input{accent-color:var(--accent);width:16px;height:16px}button.primary{width:100%;background:var(--accent);color:#1a1208;border:none;padding:11px;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer}button.primary:hover{filter:brightness(1.05)}button.primary:disabled{opacity:.45;cursor:not-allowed}button.link{background:none;border:none;color:var(--accent-2);cursor:pointer;font-size:12px}.error{color:#ff6b6b;font-size:12px;margin:10px 0 0}.warn{color:#ffce6b;font-size:12px;line-height:1.4;margin:12px 0 0;background:#ffce6b14;border:1px solid rgba(255,206,107,.25);border-radius:6px;padding:8px 10px}.stats{display:flex;flex-direction:column;gap:8px;margin-top:12px}.stats div{display:flex;justify-content:space-between;font-size:13px}.stats span{color:var(--muted)}.part-list{margin-top:12px;display:flex;flex-direction:column;gap:8px}.part-row{display:flex;justify-content:space-between;align-items:center}.swatch{width:12px;height:12px;border-radius:3px;display:inline-block;flex:0 0 auto}.part-name{display:flex;flex-direction:column;line-height:1.3}.part-name em{font-style:normal;font-size:11px}.part-name em.ok{color:#5fd08a}.part-name em.ko{color:#ffce6b}.part-row .toggle{align-items:flex-start}.pill{background:#1c1f27e6;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:1px solid var(--line);color:var(--text);padding:8px 12px;border-radius:8px;font-size:12px;cursor:pointer}.pill.active{border-color:#ff4d4d;color:#ff7a7a}.tips-head{width:100%;background:none;border:none;color:var(--text);text-align:left;font-size:13px;cursor:pointer;padding:0}.tips ul{margin:12px 0 0;padding-left:18px;font-size:12.5px;color:var(--muted);line-height:1.5}.tips li{margin-bottom:8px}.tips strong{color:var(--text)}.stage{position:relative;overflow:hidden}.viewer{width:100%;height:100%}.viewer canvas{display:block}.stage-toolbar{position:absolute;top:14px;left:14px;right:14px;z-index:5;display:flex;align-items:center;gap:16px}.stage-toolbar .seg{background:#1c1f27e6;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.explode{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text);background:#1c1f27e6;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);padding:8px 12px;border-radius:8px;border:1px solid var(--line)}.explode input{width:130px}.empty-state{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;pointer-events:none;color:var(--muted);padding:20px}.empty-state h2{color:var(--text)}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#14161bb3;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;z-index:10}.spinner{width:42px;height:42px;border:4px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.nav-toggle,.backdrop{display:none}@media (max-width: 860px){.app{grid-template-columns:1fr}.sidebar{position:fixed;top:0;left:0;bottom:0;width:min(88vw,380px);z-index:30;transform:translate(-100%);transition:transform .25s ease;box-shadow:8px 0 30px #00000080;padding-bottom:80px}.sidebar.open{transform:translate(0)}.nav-toggle{display:inline-flex;align-items:center;gap:6px;position:fixed;z-index:40;left:14px;bottom:14px;background:var(--accent);color:#1a1208;border:none;padding:12px 16px;border-radius:999px;font-size:14px;font-weight:600;box-shadow:0 6px 20px #00000073;cursor:pointer}.backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:25;background:#0000008c;opacity:0;pointer-events:none;transition:opacity .25s ease}.backdrop.show{opacity:1;pointer-events:auto}.stage-toolbar{flex-wrap:wrap;gap:10px}.explode input{width:110px}}@media (max-width: 420px){.sidebar{width:100vw}.explode{flex:1}.explode input{flex:1;width:auto}}