:root{color-scheme:dark;--bg: #0a0d14;--panel: #111724;--panel-border: #1e2a40;--text: #d9e1ef;--muted: #8fa3c5;--accent: #5f87ff;--brand: #33d9dd;--brand-strong: #22c3c8;--danger: #d95367;--surface-raised: #0e1524;--row-border: #26344f}*{box-sizing:border-box}html,body,#app{margin:0;height:100%}body{font-family:Inter,system-ui,sans-serif;background:radial-gradient(circle at top,#111a2a,var(--bg) 45%);color:var(--text)}.app-shell{display:grid;grid-template-columns:minmax(280px,340px) minmax(0,1fr);height:100%;height:100dvh;min-width:0;min-height:0}.panel{border-right:1px solid var(--panel-border);background:linear-gradient(180deg,#111724e6,#111724b3);display:flex;flex-direction:column;gap:14px;padding:18px;overflow:auto;min-width:0}.brand-mark{display:inline-flex;align-items:center;justify-content:flex-start;width:fit-content;max-width:100%}.brand-mark img{display:block;width:188px;height:auto}p{margin:0;color:var(--muted);font-size:13px;line-height:1.45}.dropzone{border:1px dashed #2f4264;border-radius:12px;min-height:76px;display:flex;align-items:center;padding:12px 14px;color:var(--muted);background:#090d1599;transition:.12s ease}.dropzone.active{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand) inset;background:#33d9dd0f}.dropzone-idle,.dropzone-release{display:flex;align-items:center;gap:10px;width:100%;font-size:13px}.dropzone-idle span,.dropzone-release span{flex:1;min-width:0}.dropzone-release{color:var(--brand);justify-content:center;text-align:center}button.primary{flex:none;border:1px solid var(--brand);background:var(--brand);color:#04141a;font-weight:600;border-radius:8px;padding:8px 14px;font-size:13px}button.primary:hover{background:var(--brand-strong);border-color:var(--brand-strong);cursor:pointer}.actions{display:grid;gap:8px}button,select{border:1px solid #2f4264;border-radius:8px;background:#121e33;color:var(--text);font-size:13px;padding:9px 10px}button:hover,select:hover{cursor:pointer;border-color:#4c699e}button.secondary{border-color:#2f4264;background:#101a2c;color:#c9d8f5}button.danger{border-color:#5f2431;color:#ffc7cf}button:disabled{cursor:not-allowed;opacity:.4}.error-banner{border:1px solid rgba(95,36,49,.85);border-radius:10px;padding:10px;background:#5f243140;color:#ffc7cf;font-size:12px}.models-list{display:flex;flex-direction:column;gap:4px}.model-group{display:flex;flex-direction:column;gap:6px}.group-header{display:flex;align-items:center;justify-content:space-between;padding:10px 2px 2px;color:var(--muted);font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.group-count{min-width:18px;text-align:center;padding:1px 6px;border-radius:999px;background:#8fa3c524;color:var(--muted);font-size:10px;letter-spacing:0;text-transform:none}.model-row{display:grid;grid-template-columns:3px 1fr;gap:10px;border:1px solid var(--row-border);border-radius:10px;background:var(--surface-raised);overflow:hidden}.row-bar{background:var(--row-color, var(--accent))}.row-body{display:grid;gap:8px;padding:10px 10px 10px 0;min-width:0}.row-top{display:flex;align-items:center;gap:4px}.row-name{flex:1;min-width:0;font-size:13px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.icon-btn{flex:none;display:grid;place-items:center;width:26px;height:26px;padding:0;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--muted)}.icon-btn:hover{color:var(--text);background:#8fa3c524;border-color:transparent}.icon-btn.danger:hover{color:#ffc7cf;background:#d9536729}.structure-select{position:relative;display:flex;align-items:center}.structure-select-trigger{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;border:none;background:transparent;color:var(--muted);font-size:11px;padding:0}.structure-select-trigger:hover,.structure-select-trigger[aria-expanded=true]{color:var(--text);cursor:pointer}.structure-select-trigger svg{flex:none;color:var(--muted)}.structure-select-menu{position:fixed;z-index:1000;max-height:280px;overflow-y:auto;border:1px solid #2f4264;border-radius:10px;background:#13203a;box-shadow:0 12px 32px #00000073;padding:6px}.structure-select-group+.structure-select-group{margin-top:4px;padding-top:4px;border-top:1px solid var(--panel-border)}.structure-select-group-label{padding:6px 8px 4px;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.structure-select-option{display:block;width:100%;text-align:left;border:none;border-radius:6px;background:transparent;color:var(--text);font-size:13px;padding:7px 8px}.structure-select-option:hover{cursor:pointer;background:#8fa3c524}.structure-select-option[aria-selected=true]{background:#33d9dd24;color:var(--brand)}.opacity-bar{position:relative;height:26px}.opacity-bar-input{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:100%;margin:0;border-radius:999px;padding:0;border:none;cursor:pointer;background:linear-gradient(90deg,var(--fill-color, var(--accent)) var(--fill, 0%),rgba(143,163,197,.16) var(--fill, 0%))}.opacity-bar-input::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:26px;border-radius:999px;background:transparent;border:none}.opacity-bar-input::-moz-range-thumb{width:18px;height:26px;border-radius:999px;background:transparent;border:none}.opacity-bar-input::-moz-range-track{height:100%;border-radius:999px;background:transparent}.opacity-bar-value{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;font-variant-numeric:tabular-nums;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.4);pointer-events:none}.viewport{width:100%;height:100%;position:relative;min-width:0;min-height:0;overflow:hidden;background:var(--bg)}.viewport-canvas{width:100%;height:100%}.viewport-topbar{position:absolute;top:14px;left:0;right:0;z-index:3;display:flex;justify-content:center;pointer-events:none}.status-pill{display:flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;border:1px solid rgba(47,66,100,.8);background:#0a101cb8;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);font-size:12px;color:var(--text)}.status-sep,.status-muted{color:var(--muted)}.brand-badge{position:absolute;top:12px;right:12px;z-index:3;padding:6px 8px;border:1px solid rgba(47,66,100,.8);border-radius:10px;background:#0a101cb8;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);pointer-events:none}.brand-badge img{display:block;width:auto;height:28px}.tool-rail{position:absolute;top:66px;right:12px;z-index:3;display:flex;flex-direction:column;gap:4px;padding:6px;border-radius:14px;border:1px solid rgba(47,66,100,.8);background:#0a101cb8;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);max-height:calc(100% - 78px);box-sizing:border-box;overflow-y:auto;scrollbar-width:none}.tool-rail::-webkit-scrollbar{display:none}.tool-rail button{width:36px;height:36px;display:grid;place-items:center;padding:0;border:1px solid transparent;border-radius:10px;background:transparent;color:var(--muted)}.tool-rail button:hover:not(:disabled){color:var(--text);background:#8fa3c524}.tool-rail button.active{background:var(--brand);color:#04141a}.tool-rail button.active:hover{background:var(--brand-strong)}.ar-scale-toggle{position:absolute;bottom:14px;right:12px;z-index:3;display:flex;gap:4px;padding:4px;border-radius:999px;border:1px solid rgba(47,66,100,.8);background:#0a101cb8;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.ar-scale-toggle button{padding:6px 12px;border:none;border-radius:999px;background:transparent;color:var(--muted);font-size:11px;letter-spacing:.02em}.ar-scale-toggle button:hover{color:var(--text)}.ar-scale-toggle button.active{background:var(--brand);color:#04141a}.viewport-caption{position:absolute;bottom:14px;left:16px;z-index:3;font-size:11px;letter-spacing:.04em;color:var(--muted);pointer-events:none}.drag-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:5;display:grid;place-items:center;background:#05091099;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);pointer-events:none}.drag-card{display:grid;justify-items:center;gap:10px;width:min(360px,calc(100% - 48px));padding:28px 24px 20px;border:1px solid rgba(51,217,221,.5);border-radius:16px;background:#0a101ceb;text-align:center;box-shadow:0 0 0 1px #33d9dd1f}.drag-card-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:12px;background:#33d9dd1f;color:var(--brand)}.drag-card h2{margin:0;font-size:16px;font-weight:600;color:var(--text)}.drag-card p{color:var(--muted);font-size:12px}.drag-note{display:flex;align-items:center;gap:8px;margin-top:8px;padding-top:12px;border-top:1px solid rgba(143,163,197,.16);width:100%;font-size:11px;color:var(--muted)}.drag-note-dot{flex:none;width:6px;height:6px;border-radius:50%;background:var(--brand)}.render-loader{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#05091085;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:4;opacity:1;transition:opacity .12s ease}.render-loader.hidden{opacity:0;pointer-events:none}.loader-card{display:grid;justify-items:center;gap:10px;width:min(320px,calc(100% - 32px));padding:14px 16px;border:1px solid #2b3a58;border-radius:12px;background:#0a101ce6;color:var(--text);font-size:12px;letter-spacing:.02em}.loader-spinner{width:26px;height:26px;border:3px solid rgba(143,163,197,.32);border-top-color:var(--brand);border-radius:50%;animation:spin .75s linear 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rgba(47,66,100,.6)}.gizmo-btn{position:absolute;top:50%;left:50%;width:22px;height:22px;padding:0;display:grid;place-items:center;border-radius:50%;border:1.5px solid var(--gizmo-color);background:#0a101cd9;color:var(--gizmo-color);font-size:10px;font-weight:700;line-height:1}.gizmo-btn.positive{background:var(--gizmo-color);color:#04141a}.gizmo-btn:hover{filter:brightness(1.25)}.gizmo-x{--gizmo-color: #e5555f}.gizmo-y{--gizmo-color: #4fcf6b}.gizmo-z{--gizmo-color: #4d8dff}.group-actions{margin-left:auto;display:flex;gap:2px}.row-metrics{font-size:11px;color:var(--muted)}.row-metrics .status-sep{margin:0 6px}.icon-btn.active{color:var(--brand)}.model-row.focused{box-shadow:0 0 0 1px var(--brand)}.toast{position:absolute;left:50%;bottom:16px;z-index:6;display:grid;gap:6px;width:max-content;max-width:min(460px,calc(100% - 24px));padding:10px 14px;transform:translate(-50%);border-radius:12px;border:1px solid rgba(47,66,100,.9);background:#0a101cf0;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);font-size:12px;line-height:1.45}.toast input{width:100%;padding:6px 8px;border-radius:6px;border:1px solid var(--row-border);background:var(--surface-raised);color:var(--text);font:inherit;font-size:11px}.toast .link-btn{justify-self:end}.perf-stats{position:absolute;top:172px;left:14px;z-index:3;width:80px;opacity:.92;cursor:pointer}.perf-info{margin-top:2px;width:max-content;max-width:calc(100vw - 28px);padding:2px 5px;border-radius:4px;background:#0a101cd1;color:var(--muted);font:10px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:nowrap}html,body{overscroll-behavior:none}button{touch-action:manipulation}.show-mobile,.sheet-handle{display:none}.panel-content{display:flex;flex-direction:column;gap:14px;min-width:0}.kbd-hint{color:inherit}@media(pointer:coarse){.kbd-hint{display:none}.icon-btn{width:40px;height:40px}.tool-rail button{width:42px;height:42px}.link-btn{padding:10px 12px}button.primary,button.secondary,.actions button{min-height:44px}.gizmo-btn{width:28px;height:28px;font-size:11px}.opacity-bar{height:32px}.clip-toggle input{width:20px;height:20px}.clip-row input[type=range]{height:28px}}@media(max-width:820px){html,body{overflow:hidden}.hide-mobile{display:none!important}.show-mobile{display:inline}.app-shell{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto}.viewport{grid-row:1;grid-column:1;min-height:0}.panel{grid-row:2;grid-column:1;gap:0;padding:0;overflow:hidden;border-right:0;border-top:1px solid var(--panel-border);background:#111724;height:calc(56px + env(safe-area-inset-bottom,0px));transition:height .25s ease}.sheet-open .panel{height:min(64dvh,560px);overflow-y:auto;overscroll-behavior:contain}.sheet-handle{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:10px;flex:none;width:100%;height:56px;padding:0 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