:root{--bg: #f6f5f1;--panel: #ffffff;--text: #1d2228;--muted: #5d6670;--line: #d9d6cd;--accent: #2f6db5;--danger: #b3261e;--stock: #efe8d8;--margin: #c9bfa5;--offcut: rgba(89, 161, 79, .18);--sheet-max: 70vh;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #15181c;--panel: #1e2227;--text: #e6e8eb;--muted: #9aa3ad;--line: #343a42;--accent: #7fb0ec;--danger: #f2b8b5;--stock: #2b2a26;--margin: #5a5546;--offcut: rgba(120, 200, 110, .16)}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,sans-serif}.app{max-width:1400px;margin:0 auto;padding:0 16px 24px}header{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:12px 0}header h1{margin:0 12px 0 0;font-size:22px}header .name{flex:1 1 180px;min-width:0}.privacy{margin:0 0 12px;color:var(--muted);font-size:13px}main{display:grid;grid-template-columns:minmax(320px,520px) 1fr;gap:16px;align-items:start}@media(max-width:860px){main{grid-template-columns:1fr}}aside,.results{display:flex;flex-direction:column;gap:12px;min-width:0}section{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:12px;min-width:0}h2{margin:0 0 8px;font-size:16px}input,select,button{font:inherit;color:inherit}input,select{background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:3px 6px;max-width:100%}input[type=number]{width:5.5em}button{background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:4px 10px;cursor:pointer}button:disabled{opacity:.5;cursor:default}button.primary{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600;padding:8px 22px}button.icon{padding:0 6px;border:none;background:none;font-size:18px;line-height:1}.drop{display:block;border:2px dashed var(--line);border-radius:6px;padding:14px;text-align:center;cursor:pointer;color:var(--muted)}.drop input{display:block;margin:0 auto 6px}.examples{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:6px;margin-top:8px}.examples p{grid-column:1 / -1;margin:0;color:var(--muted);font-size:13px}.example{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;padding:8px 10px}.example strong{color:var(--accent)}.example small{color:var(--muted);font-size:12px;line-height:1.3}.advanced{margin-top:8px}.advanced summary{cursor:pointer;color:var(--muted)}.advanced .grid{margin-top:6px}.parts{width:100%;border-collapse:collapse;margin-top:8px;display:block;overflow-x:auto}.parts th,.parts td{padding:3px 4px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle;font-size:13px}.parts small{display:block;color:var(--muted)}.thumb{width:36px;height:36px;display:block}.sheet-row{border:1px solid var(--line);border-radius:6px;margin:0 0 8px;display:flex;flex-wrap:wrap;gap:6px 12px;align-items:center}.sheet-row legend{font-size:13px;color:var(--muted)}.defect-form{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}.defect-form input{width:4.5em}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:6px 12px}.check{display:flex;gap:6px;align-items:center}.run{display:flex;gap:10px;align-items:center}.run progress{flex:1}.error{color:var(--danger);margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.warnings,.sheet-messages{color:var(--muted);font-size:13px;margin:6px 0 0;padding-left:18px}.hint{color:var(--muted)}.summary{display:flex;flex-wrap:wrap;gap:8px 24px;margin:0 0 8px}.summary dt{color:var(--muted);font-size:12px}.summary dd{margin:0;font-size:20px;font-weight:600}.sheets{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px;margin-top:12px}figure{margin:0}figcaption{display:flex;gap:6px;align-items:center;margin-top:4px;font-size:13px}figcaption button{padding:1px 8px}.sheet{width:100%;height:auto;display:block;max-height:var(--sheet-max)}.sheet .stock{fill:var(--stock);stroke:var(--margin);stroke-width:.5;vector-effect:non-scaling-stroke}.sheet .margin{fill:none;stroke:var(--margin);stroke-dasharray:4 3;stroke-width:1;vector-effect:non-scaling-stroke}.sheet .defect{fill:var(--danger);opacity:.35}.sheet .offcut{fill:var(--offcut)}.sheet .extent{fill:none;stroke:var(--accent);stroke-dasharray:5 4;stroke-width:1;vector-effect:non-scaling-stroke}.usage{color:var(--muted);margin-right:auto}.live-sheet{width:auto;max-width:100%;margin:0 auto}.skeleton{background:linear-gradient(90deg,var(--line) 25%,var(--panel) 50%,var(--line) 75%);background-size:300% 100%;animation:shimmer 1.4s ease-in-out infinite;border-radius:6px}@keyframes shimmer{0%{background-position:100% 0}to{background-position:0 0}}@media(prefers-reduced-motion:reduce){.skeleton{animation:none}}.skeleton.line{height:28px;margin:4px 0}.pending{--fit-h: 70vh}.sheet-skeleton{margin:8px auto 0;max-width:100%}@media(min-width:861px){:root{--sheet-max: calc(100dvh - 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