:root{--bg:#16181d;--panel:#16191fc7;--panel-solid:#1a1d23;--border:#ffffff14;--border-strong:#ffffff29;--text:#e7e9ee;--muted:#8f97a8;--faint:#5d6474;--accent:#6ea2ff;--accent-soft:#6ea2ff29;--warn:#ffb347;--danger:#ff6b6b;--radius:12px;--font:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);font:13px/1.4 var(--font);-webkit-font-smoothing:antialiased;margin:0;overflow:hidden}button,input,select{font:inherit;color:inherit}#app{position:fixed;inset:0}#viewport{background:radial-gradient(at 50% 40%,#343a46 0%,#16181d 75%);position:absolute;inset:0}#viewport[data-bg=dark]{background:#16181d}#viewport[data-bg=light]{background:radial-gradient(at 50% 40%,#f4f5f8 0%,#cfd3db 80%)}#viewport[data-bg=white]{background:#fff}#viewport[data-bg=env]{background:#222}#viewport[data-bg=transparent]{background:repeating-conic-gradient(#2a2d34 0 25%, #202328 0 50%) 0 0 / 24px 24px}#viewport canvas{touch-action:none;outline:none;display:block}.label-layer{pointer-events:none;position:absolute;inset:0}.dim-label,.measure-label{font:600 11px/1 var(--font);white-space:nowrap;pointer-events:none;border-radius:6px;padding:4px 7px}.dim-label{color:#ffc26b;background:#14161bcc;border:1px solid #ffb34766}.measure-label{color:#1b1b1b;background:#ffd166;box-shadow:0 2px 10px #00000059}.glass{background:var(--panel);-webkit-backdrop-filter:blur(18px)saturate(1.4);border:1px solid var(--border);box-shadow:0 10px 40px #00000059}.topbar{border-radius:var(--radius);z-index:10;align-items:center;gap:16px;height:48px;padding:0 8px 0 14px;display:flex;position:absolute;top:12px;left:12px;right:12px}.brand{letter-spacing:.01em;color:var(--accent);white-space:nowrap;align-items:center;gap:8px;font-weight:650;display:flex}.brand span{color:var(--text)}.file-name{min-width:0;color:var(--muted);white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.file-name b{color:var(--text);font-weight:600}.file-name .tag{background:var(--accent-soft);color:var(--accent);border-radius:99px;margin-left:8px;padding:1px 7px;font-size:11px;font-weight:600;display:inline-block}.top-actions{gap:6px;display:flex}.btn{border:1px solid var(--border-strong);cursor:pointer;white-space:nowrap;background:#ffffff0a;border-radius:8px;justify-content:center;align-items:center;gap:6px;height:32px;padding:0 12px;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.btn:hover:not(:disabled){background:#ffffff1a}.btn:disabled{opacity:.4;cursor:default}.btn.icon{width:32px;padding:0}.btn.primary{background:var(--accent);border-color:var(--accent);color:#0b1426;font-weight:600}.btn.primary:hover{background:#8ab5ff}.btn.active{background:var(--accent-soft);color:var(--accent);border-color:#6ea2ff8c}.btn.small{height:26px;padding:0 9px;font-size:12px}.panel{border-radius:var(--radius);overscroll-behavior:contain;z-index:9;scrollbar-width:thin;scrollbar-color:#ffffff26 transparent;width:300px;transition:transform .25s,opacity .25s;position:absolute;top:72px;bottom:12px;right:12px;overflow-y:auto}#app.panel-hidden #panel{opacity:0;pointer-events:none;transform:translate(calc(100% + 24px))}.panel details{border-bottom:1px solid var(--border)}.panel details:last-child{border-bottom:0}.panel summary{cursor:pointer;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;padding:12px 14px;font-size:11px;font-weight:700;list-style:none;display:flex}.panel summary::-webkit-details-marker{display:none}.panel summary:after{content:"";border-bottom:1.5px solid;border-right:1.5px solid;width:6px;height:6px;transition:transform .15s;transform:rotate(-45deg)}.panel details[open] summary:after{transform:rotate(45deg)}.panel .section-body{flex-direction:column;gap:10px;padding:0 14px 14px;display:flex}.io-panel{width:316px;left:12px;right:auto}#app.io-hidden #ioPanel{opacity:0;pointer-events:none;transform:translate(calc(-100% - 24px))}.io-head{z-index:2;-webkit-backdrop-filter:blur(18px)saturate(1.4);border-bottom:1px solid var(--border);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);background:#16191ff0;justify-content:space-between;align-items:center;gap:6px;padding:8px 8px 8px 14px;font-size:11px;font-weight:700;display:flex;position:sticky;top:0}.io-close{width:24px;height:24px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:6px;font-size:17px;line-height:1}.io-close:hover{color:var(--text);background:#ffffff14}.io-status{overflow-wrap:anywhere;font-size:12px}.io-status.ok{color:var(--muted)}.io-status.warn{color:var(--warn)}.io-status.error{color:var(--danger)}.btn.on{color:var(--accent);background:var(--accent-soft);border-color:#6ea2ff8c}.row{justify-content:space-between;align-items:center;gap:10px;min-height:26px;display:flex}.row>label,.row>.lbl{color:var(--text);flex-shrink:0}.row .val{color:var(--muted);font-variant-numeric:tabular-nums;text-align:right;min-width:38px}.row input.text,.row input.num{border:1px solid var(--border-strong);background:var(--panel-solid);border-radius:7px;flex:1;min-width:0;max-width:150px;height:28px;padding:0 8px}.row input.num{text-align:right;font-variant-numeric:tabular-nums;max-width:92px}.switch{flex-shrink:0;width:34px;height:20px;position:relative}.switch input{opacity:0;cursor:pointer;margin:0;position:absolute;inset:0}.switch span{pointer-events:none;background:#ffffff24;border-radius:99px;transition:background .15s;position:absolute;inset:0}.switch span:after{content:"";background:#fff;border-radius:50%;width:14px;height:14px;transition:transform .15s;position:absolute;top:3px;left:3px}.switch input:checked+span{background:var(--accent)}.switch input:checked+span:after{transform:translate(14px)}.switch input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}select{background:var(--panel-solid);border:1px solid var(--border-strong);border-radius:7px;flex:1;min-width:0;max-width:160px;height:28px;padding:0 8px}input[type=range]{min-width:0;accent-color:var(--accent);flex:1;height:20px}input[type=color]{border:1px solid var(--border-strong);cursor:pointer;background:0 0;border-radius:6px;width:30px;height:24px;padding:1px}.seg{border:1px solid var(--border);background:#ffffff0d;border-radius:8px;flex:1;gap:2px;padding:2px;display:flex}.seg button{height:24px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:6px;flex:1;font-size:12px;font-weight:600}.seg button:hover{color:var(--text)}.seg button.on{background:var(--accent-soft);color:var(--accent)}.swatches{flex-wrap:wrap;gap:8px;display:flex}.swatches button{cursor:pointer;background-size:cover;border:2px solid #0000;border-radius:50%;width:34px;height:34px;padding:0}.swatches button.on{border-color:var(--accent)}.stats{font-variant-numeric:tabular-nums;grid-template-columns:auto 1fr;gap:5px 12px;display:grid}.stats dt{color:var(--muted)}.stats dd{text-align:right;text-overflow:ellipsis;white-space:nowrap;margin:0;overflow:hidden}.note{color:var(--muted);font-size:12px}.warn{color:var(--warn);font-size:12px}.btn-row{flex-wrap:wrap;gap:6px;display:flex}.btn-row .btn{flex:1}.measure-list{flex-direction:column;gap:4px;display:flex}.measure-item{font-variant-numeric:tabular-nums;background:#ffd16614;border:1px solid #ffd16633;border-radius:7px;justify-content:space-between;align-items:center;padding:6px 8px;display:flex}.measure-item small{color:var(--muted);display:block}.measure-item button{color:var(--muted);cursor:pointer;background:0 0;border:0;font-size:16px;line-height:1}.measure-item button:hover{color:var(--danger)}.tree{scrollbar-width:thin;max-height:320px;margin:0 -6px;overflow:auto}.tree ul{margin:0;padding:0 0 0 12px;list-style:none}.tree>ul{padding-left:0}.tree-item{cursor:pointer;height:26px;color:var(--text);border-radius:6px;align-items:center;gap:4px;padding:0 6px;display:flex}.tree-item:hover{background:#ffffff0f}.tree-item.selected{background:var(--accent-soft);color:var(--accent)}.tree-item.hidden-node .tree-name{opacity:.4}.tree-name{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.tree-toggle,.tree-eye{width:18px;height:18px;color:var(--muted);cursor:pointer;background:0 0;border:0;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.tree-toggle.leaf{visibility:hidden}.tree-toggle svg{transition:transform .12s}.tree-toggle.open svg{transform:rotate(90deg)}.tree-eye{opacity:0}.tree-item:hover .tree-eye,.tree-item.hidden-node .tree-eye{opacity:1}.modebar,.viewbar{border-radius:var(--radius);z-index:9;gap:2px;padding:4px;display:flex;position:absolute;bottom:12px}.modebar{scrollbar-width:none;width:-moz-fit-content;width:fit-content;max-width:calc(100% - 336px);left:12px;right:324px;overflow-x:auto}#app.panel-hidden .modebar{max-width:calc(100% - 24px)}.viewbar{bottom:72px;left:12px}.modebar button,.viewbar button{min-width:40px;height:40px;color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-radius:8px;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:2px;padding:0 10px;font-size:10.5px;font-weight:600;display:flex}.viewbar button{height:32px;font-size:11px}.modebar button:hover,.viewbar button:hover{color:var(--text);background:#ffffff0f}.modebar button.on,.viewbar button.on{color:var(--accent);background:var(--accent-soft)}.viewbar .sep{background:var(--border-strong);width:1px;margin:6px 4px}#app:not(.io-hidden) .modebar,#app:not(.io-hidden) .viewbar{left:340px}#app:not(.io-hidden) .modebar{max-width:calc(100% - 664px)}#app:not(.io-hidden).panel-hidden .modebar{max-width:calc(100% - 364px)}.hover-readout{color:#1b1b1b;z-index:9;background:#ffd166;border-radius:99px;padding:6px 12px;font-weight:600;display:none;position:absolute;top:72px;left:50%;transform:translate(-50%)}.hover-readout.show{display:block}.empty{z-index:5;pointer-events:none;place-items:center;padding:80px 16px 16px;display:grid;position:absolute;inset:0}#app.has-model .empty,#app:not(.has-model) .modebar,#app:not(.has-model) .viewbar,#app:not(.has-model) .panel{display:none}.empty-card{pointer-events:auto;text-align:center;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#12141973;border:1.5px dashed #ffffff2e;border-radius:20px;max-width:520px;padding:40px 36px 32px}.empty-icon{color:var(--accent);margin-bottom:10px}.empty h1{margin:0 0 6px;font-size:22px;font-weight:650}.empty p{color:var(--muted);margin:0 0 18px}.empty-actions{justify-content:center;gap:10px;margin-bottom:22px;display:flex}.empty-actions .btn{height:38px;padding:0 18px}.formats{flex-wrap:wrap;justify-content:center;gap:5px;display:flex}.formats span{border:1px solid var(--border);color:#b9c0cf;background:#ffffff0f;border-radius:99px;padding:2px 8px;font-size:11px;font-weight:600}.empty .hint{margin:0;font-size:12px}.drop-overlay{z-index:50;border:3px dashed var(--accent);pointer-events:none;color:var(--accent);background:#6ea2ff1f;border-radius:16px;place-items:center;margin:6px;font-size:22px;font-weight:650;display:none;position:absolute;inset:0}#app.dragging .drop-overlay{display:grid}.loading{z-index:40;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);color:var(--text);background:#0a0c108c;flex-direction:column;justify-content:center;align-items:center;gap:14px;font-weight:500;display:none;position:absolute;inset:0}#app.loading-active .loading{display:flex}.spinner{border:3px solid #ffffff26;border-top-color:var(--accent);border-radius:50%;width:38px;height:38px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.toasts{z-index:60;flex-direction:column;gap:8px;width:min(440px,100% - 32px);display:flex;position:absolute;top:72px;left:50%;transform:translate(-50%)}.toast{background:var(--panel-solid);border:1px solid var(--border-strong);border-radius:10px;padding:10px 14px;animation:.2s toast-in;box-shadow:0 10px 30px #0006}.toast.error{color:#ffb3b3;border-color:#ff6b6b80}.toast.warn{color:#ffd79e;border-color:#ffb34780}@keyframes toast-in{0%{opacity:0;transform:translateY(-6px)}}.dialog-backdrop{z-index:70;background:#00000073;place-items:center;padding:16px;display:grid;position:absolute;inset:0}.dialog-backdrop[hidden]{display:none}.dialog{border-radius:16px;width:min(460px,100%);max-height:90vh;padding:20px 24px;overflow:auto}.preview-dialog{width:min(1040px,100%)}.preview-head{color:var(--muted);font-variant-numeric:tabular-nums;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:14px;margin-bottom:10px;font-size:12px;display:flex}.preview-head b{color:var(--text);font-size:13px}.compare{aspect-ratio:16/9;border:1px solid var(--border);cursor:ew-resize;touch-action:none;background:#101216;border-radius:10px;width:100%;max-height:62vh;position:relative;overflow:hidden}.compare img{object-fit:contain;-webkit-user-select:none;user-select:none;-webkit-user-drag:none;width:100%;height:100%;position:absolute;inset:0}.compare-handle{background:var(--accent);pointer-events:none;width:2px;margin-left:-1px;position:absolute;top:0;bottom:0;box-shadow:0 0 0 1px #00000073}.compare-tag{border:1px solid var(--border);color:var(--muted);pointer-events:none;background:#101216bf;border-radius:99px;padding:3px 9px;font-size:11px;font-weight:600;position:absolute;top:8px}.compare-tag.before{left:8px}.compare-tag.after{right:8px}.preview-dialog input[type=range]{width:100%;margin:12px 0 16px}.dialog h2{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:4px 0 10px;font-size:12px}.shortcuts{grid-template-columns:auto 1fr;align-items:center;gap:6px 14px;margin-bottom:16px;display:grid}kbd{border:1px solid var(--border-strong);white-space:nowrap;background:#ffffff14;border-radius:5px;justify-self:start;padding:4px 7px;font:600 11px/1 ui-monospace,SF Mono,Consolas,monospace}@media (max-width:760px){.topbar{gap:8px;top:8px;left:8px;right:8px}.brand span,#openBtn span{display:none}.panel{width:auto;max-height:48vh;inset:auto 8px 64px}.io-panel{max-height:46vh;top:64px;bottom:auto}#app:not(.io-hidden) #panel{display:none}#app:not(.io-hidden) .modebar{max-width:none;left:8px}.modebar{max-width:none;bottom:8px;left:8px;right:8px}.viewbar{display:none!important}}