:root{--bg:#f4f1ea;--panel:#fffdf8;--ink:#2b2620;--muted:#7a7164;--line:#ddd5c6;--accent:#b5651d;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#1d1b18;--panel:#26231f;--ink:#ece6da;--muted:#9a9183;--line:#3a362f;--accent:#e0a064}}*{box-sizing:border-box}body{background:var(--bg);height:100vh;color:var(--ink);margin:0;font:14px/1.4 -apple-system,system-ui,sans-serif;display:flex}#panel{background:var(--panel);border-right:1px solid var(--line);flex:none;width:280px;padding:16px;overflow-y:auto}h1{margin:0;font-size:20px}h2{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 8px;font-size:12px}.sub{color:var(--muted);margin:2px 0 14px}section{border-top:1px solid var(--line);padding:12px 0}label{justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;display:flex}label.check{justify-content:flex-start}label.check.inline{margin:0 0 0 12px}input[type=number],select{border:1px solid var(--line);background:var(--bg);width:130px;color:var(--ink);font:inherit;border-radius:6px;padding:5px 6px}.row{gap:8px;display:flex}.row label{flex-direction:column;flex:1;align-items:stretch;gap:3px}.row input{width:100%}button,label.file{border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;cursor:pointer;text-align:center;border-radius:6px;padding:7px 12px;display:inline-block}label.file{background:var(--accent);border-color:var(--accent);color:#fff;justify-content:center;margin-bottom:8px;display:block}.row button{flex:1}button:hover{border-color:var(--accent)}.hint{color:var(--muted);margin-top:4px;font-size:12px}.warn{color:#c0392b;margin-top:6px;font-size:12px}main{flex-direction:column;flex:1;min-width:0;display:flex;position:relative}#tabs{border-bottom:1px solid var(--line);background:var(--panel);align-items:center;padding:8px 12px;display:flex}#tabs button{border-radius:6px 6px 0 0;margin-right:4px}#tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff}#view3d,#sheets{flex:1;min-height:0}#view3d canvas{display:block}#sheets{padding:16px;overflow:auto}#sheets .sheet{margin-bottom:20px}#sheets .sheet h3{color:var(--muted);margin:0 0 6px;font-size:13px;font-weight:500}#sheets svg{background:#fff;max-width:100%;height:auto;box-shadow:0 1px 4px #00000040}#empty{color:var(--muted);pointer-events:none;justify-content:center;align-items:center;display:flex;position:absolute;inset:44px 0 0}[hidden]{display:none!important}@media (width<=720px){body{flex-direction:column;height:auto}#panel{width:auto}#view3d,#sheets{flex:none;height:70vh}}#sheets svg #CUT path{vector-effect:non-scaling-stroke;stroke-width:1.2px}#sheets svg #SHEET{vector-effect:non-scaling-stroke;stroke-width:1px}#drop{z-index:10;background:color-mix(in srgb, var(--accent) 18%, transparent);border:3px dashed var(--accent);pointer-events:none;border-radius:8px;justify-content:center;align-items:center;margin:8px;display:flex;position:absolute;inset:0}#drop div{background:var(--panel);color:var(--ink);text-align:center;border-radius:10px;padding:18px 28px;font-size:18px;font-weight:600;box-shadow:0 2px 12px #00000040}#drop small{color:var(--muted);margin-top:4px;font-size:13px;font-weight:400;display:block}