:root{font-family:Avenir Next,Segoe UI,sans-serif;color:#17324d;background:radial-gradient(circle at top,rgba(255,236,210,.9),transparent 38%),linear-gradient(180deg,#fffaf2,#f4f9ff);line-height:1.5;font-weight:400}html,body,#root{height:100%}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;overflow:hidden}button,input,select,textarea{font:inherit}.page-shell{height:100vh;padding:20px;overflow:hidden}.workspace-shell{height:calc(100vh - 40px);display:grid;grid-template-columns:minmax(420px,520px) minmax(0,1fr) minmax(420px,520px);gap:18px;overflow:hidden}.left-rail,.right-rail,.center-stage{min-height:0;overflow:hidden}.rail-card,.stage-card{height:100%;border:1px solid rgba(129,164,196,.28);border-radius:28px;background:#ffffffd6;box-shadow:0 24px 70px #6c94b81f;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.rail-card{padding:24px;overflow:auto}.stage-card{padding:20px;display:flex;flex-direction:column;gap:18px;min-height:0;overflow:hidden}.eyebrow{margin:0 0 8px;color:#ca7a35;font-size:.85rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}h1{margin:0;font-size:clamp(1.8rem,3vw,2.6rem);line-height:1;letter-spacing:-.04em}.intro{margin:18px 0 0;max-width:54ch;color:#4e657d;font-size:1.02rem}.upload-form{margin-top:28px;display:grid;gap:18px}.upload-field{display:grid;gap:8px;padding:20px;border:1px dashed #98b7d4;border-radius:22px;background:linear-gradient(180deg,#fff,#f9fcff)}.model-field{display:grid;gap:8px;padding:18px 20px;border:1px solid #d9e7f4;border-radius:22px;background:linear-gradient(180deg,#fff,#fdfefe)}.model-field select,.model-field input{padding:12px 14px;border:1px solid #bfd4e7;border-radius:14px;background:#fffefc;color:#17324d}.model-field textarea{padding:12px 14px;border:1px solid #bfd4e7;border-radius:14px;background:#fffefc;color:#17324d;resize:vertical;min-height:140px}.toggle-field{display:flex;align-items:center;gap:12px;padding:14px 4px 0;color:#17324d}.toggle-field input{width:18px;height:18px}.resolution-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.upload-label{font-size:1.1rem;font-weight:700}.upload-hint{color:#64809c;font-size:.95rem}.upload-field input{margin-top:8px}.selection-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:#4e657d}.selection-label{font-weight:700}.selection-value{color:#17324d}.upload-button{width:fit-content;padding:13px 22px;border:0;border-radius:999px;background:linear-gradient(135deg,#ffbe6a,#ff926c);color:#25313f;font-weight:800;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,opacity .18s ease;box-shadow:0 14px 28px #ff926c3d}.upload-button:hover:enabled{transform:translateY(-1px)}.upload-button:disabled{opacity:.7;cursor:wait}.status{margin-top:18px;padding:14px 16px;border-radius:16px}.status.error{background:#fff1ee;color:#a1413b;border:1px solid #f0c0bc}.result-card{display:none}.timings-card{margin-top:20px;padding-top:16px;border-top:1px solid #d6e8f6}.timings-card h3,.timings-card h4{margin:0 0 10px;font-size:1.05rem}.timings-list{margin:0;padding:0;list-style:none;display:grid;gap:8px}.timings-list li{display:flex;justify-content:space-between;gap:12px;color:#4e657d}.stage-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}.stage-kicker{margin:0 0 6px;color:#ca7a35;font-size:.82rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.stage-head h2{margin:0;font-size:1.5rem;line-height:1.05}.stage-meta{margin:0;color:#64809c;font-size:.94rem}.empty-stage{flex:1;min-height:0;display:grid;place-items:center;text-align:center;padding:32px;border-radius:22px;border:1px dashed #bfd4e7;background:linear-gradient(180deg,#ffffffb8,#f3f9fff5)}.empty-stage p{margin:0;font-size:1.2rem;font-weight:700}.empty-stage span{color:#64809c;max-width:34ch}.overlay-empty{margin:0;color:#64809c}.canvas-shell{display:flex;flex-direction:column;gap:12px;min-height:0;flex:1;overflow:hidden}.preview-tabbar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px;flex-shrink:0}.preview-tab{padding:9px 14px;border:1px solid #d6e8f6;border-radius:999px;background:#ffffffeb;color:#35516d;cursor:pointer;font-weight:700;transition:background .18s ease,border-color .18s ease,color .18s ease}.preview-tab.active{border-color:#ffb26c;background:linear-gradient(135deg,#ffbe6a2e,#ff926c38);color:#17324d}.canvas-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-shrink:0}.canvas-zoom-readout{color:#64809c;font-size:.92rem;font-weight:700}.canvas-toolbar-actions{display:flex;gap:8px}.canvas-tool{padding:8px 12px;border:1px solid #d6e8f6;border-radius:999px;background:#fff;color:#17324d;cursor:pointer;font-weight:700}.canvas-viewport{flex:1;min-height:0;min-width:0;overflow:scroll;scrollbar-gutter:stable both-edges;overscroll-behavior:contain;padding:16px;border:1px solid #d9e7f4;border-radius:18px;background:linear-gradient(45deg,#eef5fc 25%,transparent 25%),linear-gradient(-45deg,#eef5fc 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#eef5fc 75%),linear-gradient(-45deg,transparent 75%,#eef5fc 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0}.artifact-pane{flex:1;min-height:0;min-width:0;overflow:auto;scrollbar-gutter:stable both-edges;overscroll-behavior:contain;padding:16px;border:1px solid #d9e7f4;border-radius:18px;background:linear-gradient(45deg,#eef5fc 25%,transparent 25%),linear-gradient(-45deg,#eef5fc 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#eef5fc 75%),linear-gradient(-45deg,transparent 75%,#eef5fc 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0}.artifact-pane.is-empty{display:grid;place-items:center;text-align:center;color:#64809c;background:linear-gradient(180deg,#ffffffb8,#f3f9fff5)}.artifact-pane.is-empty p{margin:0}.artifact-image{display:block;max-width:none;width:auto;height:auto;border-radius:14px;border:1px solid #d9e7f4;background:#fff;box-shadow:0 16px 36px #43688b24}.json-pane{background:linear-gradient(180deg,#fffffff2,#f5fafffa)}.json-viewer{margin:0;min-width:fit-content;color:#28425c;font-size:.92rem;line-height:1.5;white-space:pre}.canvas-stage{position:relative;width:fit-content;min-width:fit-content;min-height:fit-content}.overlay-canvas{display:block;width:100%;height:100%;border-radius:14px;border:1px solid #d9e7f4;background:#fff;box-shadow:0 16px 36px #43688b24}.overlay-canvas.is-hovering-room{cursor:pointer}.room-tooltip{position:absolute;z-index:2;min-width:220px;width:fit-content;max-width:min(80vw,680px);padding:12px 14px;border:1px solid rgba(129,164,196,.35);border-radius:16px;background:#fffffff5;box-shadow:0 16px 30px #43688b2e;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);pointer-events:none}.room-tooltip-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px;align-items:start}.room-tooltip-grid.is-multi{grid-template-columns:repeat(var(--tooltip-columns, 3),minmax(180px,1fr))}.room-tooltip-column{min-width:0;padding:12px 14px;border:1px solid rgba(129,164,196,.32);border-radius:12px;background:#f7fbffeb;box-shadow:inset 0 1px #ffffffb3}.room-tooltip p{margin:0;color:#35516d}.room-tooltip p+p{margin-top:6px}.response-grid{display:grid;gap:10px}.response-grid p{margin:0;color:#4e657d}.preview-list{margin-top:22px;padding-top:18px;border-top:1px solid #d6e8f6}.preview-list h4{margin:0 0 12px;font-size:1rem}.preview-chip{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:10px;padding:12px 14px;border:1px solid #d6e8f6;border-radius:16px;background:#fff;color:#17324d;cursor:pointer;text-align:left}.preview-chip.active{border-color:#ffb26c;background:linear-gradient(180deg,#fff7ed,#fff);box-shadow:0 10px 22px #ff926c1f}.preview-chip strong{min-width:32px;text-align:center;color:#ca7a35}@media (max-width: 640px){body{overflow:auto}.page-shell{height:auto;overflow:visible}.workspace-shell{height:auto;grid-template-columns:1fr;overflow:visible}.left-rail,.right-rail,.center-stage,.stage-card,.canvas-shell{overflow:visible}h1{font-size:2.3rem}.overlay-canvas{max-height:none}}