:root{--paper:#fff9f2;--ink:#1e1b16;--ink-soft:#6e655a;--border:#1e1b16;--coral:#ff6b57;--sun:#ffc24b;--mint:#3ecf8e;--sky:#4ea8ff;--grape:#9b6bff;--bubble:#ff8fc5;--lime:#c6e84e;--peach:#ffa96b;--r:20px;--spring:cubic-bezier(.34, 1.56, .64, 1);--font-display:"Bricolage Grotesque", "Inter", sans-serif;--font-ui:"Inter", -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;overflow-x:clip}body{font-family:var(--font-ui);background:var(--paper);color:var(--ink);background-image:radial-gradient(#ebdfcf 1.3px,#0000 1.3px);background-size:26px 26px;font-size:16px;line-height:1.55;overflow-x:clip}h1,h2,h3,.display{font-family:var(--font-display)}.ch-shell{flex-direction:column;align-items:center;gap:18px;min-height:100vh;padding:32px 16px 88px;display:flex}.ch-head{align-items:flex-start;gap:14px;width:min(860px,100%);display:flex}.ch-ico{background:var(--c,var(--lime));border:2.5px solid var(--border);border-radius:16px;flex-shrink:0;justify-content:center;align-items:center;width:56px;height:56px;font-size:27px;display:inline-flex;box-shadow:inset 0 -4px #00000029}.ch-head h1{letter-spacing:-.8px;font-size:30px;font-weight:800;line-height:1.05;font-family:var(--font-display)}.ch-tagline{color:var(--ink-soft);max-width:62ch;margin-top:4px;font-size:14px;font-weight:500;line-height:1.45}.ch-tagline b{color:var(--ink);font-weight:800}.ch-card{flex-direction:column;gap:12px;width:min(860px,100%);padding:18px 20px;display:flex}.ch-card h2{font-family:var(--font-display);letter-spacing:-.4px;font-size:19px;font-weight:800}.ch-card p{color:var(--ink-soft);font-size:13.5px;font-weight:500;line-height:1.55}.ch-card p b{color:var(--ink);font-weight:800}.ch-hint{border-left:3px solid var(--c,var(--lime));padding-left:11px;font-size:12px!important}.ch-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.ch-toolset{flex-wrap:wrap;gap:7px;display:flex}.ch-toolset .atelier-btn{padding:9px 16px;font-size:13.5px}.ch-starters{color:var(--ink-soft);flex-wrap:wrap;align-items:center;gap:6px;font-size:12px;font-weight:700;display:flex}.ch-starter{border:2px solid var(--border);background:var(--paper);font-family:var(--font-ui);color:var(--ink);cursor:pointer;border-radius:30px;padding:4px 12px;font-size:12px;font-weight:700}.ch-starter:hover{background:color-mix(in srgb, var(--c,var(--lime)) 28%, var(--paper))}.ch-canvas-wrap{border:2.5px solid var(--border);width:min(860px,100%);box-shadow:6px 6px 0 var(--border);background:#fffdf9;border-radius:18px;line-height:0;overflow:hidden}.ch-canvas{touch-action:none;aspect-ratio:3/2;width:100%;height:auto;display:block}.ch-canvas.tool-draw{cursor:crosshair}.ch-canvas.tool-move{cursor:grab}.ch-canvas.tool-erase{cursor:pointer}.ch-wall{stroke:#1e1b16;stroke-width:.09px;stroke-linecap:round}.ch-ghost{stroke:#1e1b16;stroke-width:.07px;stroke-dasharray:.16 .12;opacity:.65;stroke-linecap:round}.ch-node{fill:#fffdf9;stroke:#1e1b16;stroke-width:.035px}.ch-wall-len{font:700 .19px var(--font-ui,sans-serif);fill:#6e655a}.ch-ghost-len{font:800 .24px var(--font-display,sans-serif);fill:#1e1b16}.ch-room-area{font:800 .42px var(--font-display,sans-serif);fill:#1e1b16}.ch-room-sub{font:600 .2px 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var(--border);border-radius:5px;flex-shrink:0;width:15px;height:15px}.ch-swatch.r0{background:#e8f6b8}.ch-swatch.r1{background:#cde7ff}.ch-swatch.r2{background:#ffe2cd}.ch-swatch.r3{background:#e5d9ff}.ch-swatch.r4{background:#c1f0db}.ch-swatch.r5{background:#fde}.ch-room-name{flex:1;font-size:13.5px;font-weight:700}.ch-room-nums{font-family:var(--font-display);font-variant-numeric:tabular-nums;font-size:15px;font-weight:800}.ch-room-nums em{font-style:normal;font-family:var(--font-ui);color:var(--ink-soft);font-size:12px;font-weight:700}.ch-ceiling{color:var(--ink-soft);align-items:center;gap:8px;font-size:12.5px;font-weight:700;display:inline-flex}.ch-ceiling input{width:74px;font-family:var(--font-ui);color:var(--ink);border:2.5px solid var(--border);background:var(--paper);border-radius:10px;padding:6px 10px;font-size:14px;font-weight:700}.ch-caveat{border-left:3px solid 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10px;font-size:10.5px;font-weight:800}.atelier-badge.live{background:var(--mint)}.atelier-badge.exp{background:var(--sun)}.atelier-badge.grad{background:var(--grape);color:#fff}.atelier-badge.soon{color:var(--ink-soft);background:#efe7db;border-style:dashed}.atelier-chip{font-family:var(--font-ui);border:2px solid var(--border);color:var(--ink);cursor:pointer;box-shadow:2.5px 2.5px 0 var(--border);background:#fff;border-radius:40px;padding:8px 16px;font-size:13.5px;font-weight:700;transition:transform .1s,box-shadow .1s}.atelier-chip:hover{box-shadow:4px 4px 0 var(--border);transform:translate(-1.5px,-1.5px)}.atelier-chip.on{background:var(--ink);color:#fff}.atelier-dotgrid{grid-template-columns:repeat(2, var(--dot,7px));gap:calc(var(--dot,7px) * .43);display:grid}.atelier-dotgrid i{width:var(--dot,7px);height:var(--dot,7px);border-radius:50%}.atelier-dotgrid i:first-child{background:var(--coral)}.atelier-dotgrid i:nth-child(2){background:var(--sun)}.atelier-dotgrid 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