*{box-sizing:border-box} :root{--ink:#273e39;--muted:#6e7f77;--line:#dce2d9;--green:#2f6557;--paper:#f7f7f1}body{margin:0;background:var(--paper);color:var(--ink);font:14px system-ui,-apple-system,Segoe UI,sans-serif}button,input,select{font:inherit}button,.button{border:1px solid var(--line);background:white;border-radius:7px;padding:9px 12px;color:var(--ink);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;min-height:38px}button:hover,.button:hover{border-color:var(--green);background:#edf3ed}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #85bcb2;outline-offset:2px}header{display:flex;align-items:center;justify-content:space-between;padding:22px 36px;border-bottom:1px solid var(--line);gap:16px}.brand{text-decoration:none;color:var(--green);display:flex;align-items:center;gap:10px;font-size:25px;font-weight:700;letter-spacing:-1px}.brand-light{font-weight:350}.brand small{font-size:9px;letter-spacing:1.3px;margin-left:13px;background:#e8ede2;padding:7px;border-radius:4px}.file-actions{display:flex;gap:8px}.intro{padding:32px 36px 27px;display:flex;align-items:center;justify-content:space-between;gap:20px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:750;color:var(--green)}h1{font-family:Georgia,serif;font-weight:400;font-size:34px;letter-spacing:-.8px;margin:8px 0}p{line-height:1.6;color:var(--muted);margin:6px 0}.save{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted)}.save i{width:7px;height:7px;border-radius:50%;background:#6d9679}main{display:grid;grid-template-columns:242px minmax(300px,1fr) 245px;border:1px solid var(--line);margin:0 28px;border-radius:12px;overflow:hidden;background:#fff}aside{background:#fcfcf8}#settings{border-right:1px solid var(--line)}#inspector{border-left:1px solid var(--line)}section{padding:20px;border-bottom:1px solid var(--line)}h2{font-size:15px;margin:0 0 18px;display:flex;gap:10px;align-items:center}h2>span{color:#9ba99a;font-size:10px}h3{font-size:15px;font-family:Georgia,serif;font-weight:400}.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px 10px}.field{display:flex;flex-direction:column;gap:6px;min-width:0}.field label{font-size:10px;color:var(--muted)}.field input,.field select{width:100%;min-width:0;background:white;border:1px solid var(--line);border-radius:5px;color:var(--ink);padding:9px 7px;min-height:38px}.field.full{grid-column:1/-1}details{border:1px solid var(--line);border-radius:7px;padding:10px;margin-top:10px}summary{cursor:pointer;font-size:12px;font-weight:650;min-height:25px}summary span{float:right;color:#8c9e8d}details[open] summary{margin-bottom:10px}.hint{font-size:10px;line-height:1.6;margin-top:12px}.object-row{display:flex;align-items:center;gap:10px;width:100%;background:transparent;margin:5px 0;justify-content:flex-start;text-align:left;border-color:transparent;font-size:12px}.object-row.active{background:#eaf1e9;border-color:#bdcdbd}.swatch{width:23px;height:23px;border-radius:5px;display:inline-block}.object-row small{margin-left:auto;color:var(--muted);font-size:9px}.workspace{min-width:0;background:#f3f4ed}.viewbar{display:flex;align-items:center;justify-content:space-between;padding:13px 18px;gap:8px;border-bottom:1px solid var(--line);background:#fff}.tabs{display:flex;background:#eef1e9;padding:3px;border-radius:7px}.tabs button{border:0;background:transparent;padding:7px 15px;font-size:12px;min-height:34px}.tabs button[aria-selected=true]{background:var(--green);color:#fff;box-shadow:0 2px 4px #263e3922}#area{font-size:11px;color:var(--muted)}#fit{font-size:11px;border:0;padding:7px;background:transparent}#stage{height:560px;position:relative;overflow:hidden;background:radial-gradient(#d4dcd0 1px,transparent 1px);background-size:16px 16px}#plan,#three{width:100%;height:100%;display:block;touch-action:none}#three[hidden],#plan[hidden],#three-options[hidden]{display:none}#three canvas{display:block;width:100%;height:100%;touch-action:none}.stage-badge{position:absolute;left:18px;top:18px;font-size:9px;letter-spacing:1.6px;color:#758575;pointer-events:none}#three-options{position:absolute;bottom:15px;left:15px;background:#fffffff0;border-radius:6px;padding:10px;font-size:11px;max-width:90%}.instructions{padding:12px 16px;text-align:center;font-size:10px;color:var(--muted);background:#fff;border-top:1px solid var(--line)}#alerts{padding:12px 18px;background:#fff;font-size:11px;max-height:150px;overflow:auto;border-top:1px solid var(--line)}.ok{color:#467263}.warning{color:#976332;margin:4px 0}.legend{display:flex;justify-content:space-between;padding:14px 18px;gap:10px;font-size:9px;color:var(--muted);border-top:1px solid var(--line)}#selected-name{font:24px Georgia,serif;margin:11px 0}.object-preview{height:60px;border-radius:6px;background:#eef1e8;margin:14px 0 20px;display:grid;place-items:center;font:38px Georgia;color:#8fa395}.wide{width:100%;font-size:11px;margin-top:14px}.note{background:#f2f3e9;padding-bottom:25px}.note p{font-size:11px}footer{display:flex;justify-content:space-between;padding:24px 36px;font-size:9px;letter-spacing:1px;color:#8b9789}footer span{letter-spacing:0}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:14px 22px;border-radius:9px;box-shadow:0 5px 30px #0002;display:none;z-index:10;max-width:90vw}svg text{font-family:system-ui;user-select:none}svg .furniture{cursor:grab}svg .furniture:active{cursor:grabbing}svg .rotation{cursor:crosshair}input:invalid{border-color:#bf6652}@media(min-width:1600px){main{grid-template-columns:270px minmax(500px,1fr) 280px}#stage{height:650px}}@media(max-width:1100px){main{grid-template-columns:215px minmax(300px,1fr)}#inspector{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;border-left:0;border-top:1px solid var(--line)}#inspector section:first-child{display:grid;grid-template-columns:120px 1fr;gap:5px 20px}#inspector .eyebrow,#selected-name{grid-column:1}#object-fields{grid-column:2;grid-row:1/6;grid-template-columns:repeat(3,1fr)}#inspector .hint{grid-column:1/-1}.object-preview{margin:0}#stage{height:530px}}@media(max-width:650px){header{padding:16px;flex-wrap:wrap}.brand{font-size:22px}.brand small{font-size:8px;margin-left:5px}.file-actions{width:100%;gap:6px}.file-actions>*{flex:1;font-size:11px;padding:8px}.intro{padding:25px 18px 20px;display:block}h1{font-size:28px}.intro p{font-size:12px}.save{margin-top:12px}main{margin:0 10px;display:flex;flex-direction:column}#settings{order:2;border-right:0;display:grid;grid-template-columns:1fr 1fr}.workspace{order:1}#inspector{order:3;display:block}#settings section{padding:15px}#settings section:last-child{grid-column:1/-1}#object-list{display:grid;grid-template-columns:1fr 1fr}.viewbar{padding:10px}#area{font-size:9px}.tabs button{padding:7px 11px}#stage{height:430px}.instructions{font-size:10px;line-height:1.5}.legend{flex-direction:column;gap:5px}#inspector section:first-child{display:block}#object-fields{grid-template-columns:repeat(3,1fr)}.object-preview{display:none}#settings .fields{gap:10px 7px}footer{padding:22px 16px;gap:10px;flex-wrap:wrap}footer span:last-child{width:100%}}
/* Corner columns retain the original room envelope and reference axes. */
.pillar-card{border-top:1px solid var(--line);padding:12px 0 2px}.pillar-toggle{display:flex;align-items:center;gap:7px;font-size:11px;font-weight:650;line-height:1.5;cursor:pointer;margin-bottom:10px;min-height:32px}.pillar-toggle input{accent-color:var(--green);width:17px;height:17px}.pillar-card input:disabled{background:#f0f2eb;color:#899384;border-color:#e4e8df}.envelope-note{margin-bottom:10px}#pillars-panel .hint{font-size:10px}#area{text-align:center;line-height:1.5}