:root{--primary: #b91c1c;--primary-dark: #7f1d1d;--primary-soft: #fef2f2;--link: #991b1b;--text: #1f2937;--text-muted: #6b7280;--border: #e5e7eb;--bg: #f3f4f6;--side-bg: #1f2937;--side-text: #d1d5db;--font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;font-family:var(--font-stack);font-size:14px;line-height:1.5;color:var(--text);background-color:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh}h1{font-size:20px;margin:0 0 16px}h2{font-size:16px;margin:24px 0 8px}h3{font-size:14px;margin:16px 0 8px}button{cursor:pointer;font-family:inherit}button:disabled{cursor:not-allowed;opacity:.6}input,select,textarea{font-family:inherit;font-size:inherit;padding:6px 8px;border:1px solid #d1d5db;border-radius:6px;background:#fff}input:focus,select:focus,textarea:focus{outline:2px solid rgba(185,28,28,.2);border-color:var(--primary)}table{border-collapse:collapse;width:100%;background:#fff}th,td{padding:6px 10px;border:1px solid var(--border);text-align:left;vertical-align:top}th{background-color:#f9fafb;font-weight:600;white-space:nowrap}a{color:var(--link)}.loading-screen{display:flex;align-items:center;justify-content:center;height:100vh;font-size:18px;color:var(--text-muted)}.layout{display:flex;min-height:100vh}.sidebar{width:220px;background-color:var(--side-bg);color:#f9fafb;padding:16px;display:flex;flex-direction:column;flex-shrink:0}.sidebar h1{font-size:18px;margin:0 0 24px}.sidebar h1 .mark{display:inline-block;width:28px;height:28px;line-height:28px;text-align:center;border-radius:6px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;margin-right:8px;font-size:15px}.sidebar nav{display:flex;flex-direction:column;gap:4px;flex:1}.sidebar nav a{color:var(--side-text);text-decoration:none;padding:8px 12px;border-radius:6px;border-left:3px solid transparent}.sidebar nav a:hover,.sidebar nav a.active{background-color:#374151;color:#fff}.sidebar nav a.active{border-left-color:var(--primary)}.sidebar .userbox{margin-top:auto;font-size:12px;color:#9ca3af;border-top:1px solid #374151;padding-top:12px;word-break:break-all}.sidebar .userbox button{background:transparent;color:var(--side-text);border:1px solid #4b5563;border-radius:4px;padding:4px 10px;margin-top:8px;width:100%}.main-content{flex:1;padding:24px;min-width:0}@media (max-width: 720px){.layout{flex-direction:column}.sidebar{width:100%}.sidebar nav{flex-direction:row;flex-wrap:wrap}.main-content{padding:16px}}.btn{display:inline-block;padding:6px 14px;border-radius:6px;border:1px solid #d1d5db;background:#fff;color:var(--text);font-size:14px;text-decoration:none}.btn:hover:not(:disabled){background:#f9fafb}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark);border-color:var(--primary-dark)}.btn-danger{background:#fff;border-color:#fca5a5;color:#b91c1c}.btn-danger:hover:not(:disabled){background:#fef2f2}.btn-block{width:100%;padding:10px}.btn-sm{padding:2px 8px;font-size:12px}.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:12px 0}.toolbar input[type=search]{min-width:280px}.tabs{display:flex;gap:4px;margin-bottom:12px;flex-wrap:wrap}.tabs button{border:1px solid var(--border);background:#fff;padding:6px 12px;border-radius:999px}.tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:#e5e7eb;color:#374151;white-space:nowrap}.badge-draft{background:#e5e7eb;color:#374151}.badge-confirmed{background:#d1fae5;color:#065f46}.badge-warn{background:#fef3c7;color:#92400e}.alert{padding:10px 12px;border-radius:6px;margin-bottom:12px}.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.alert-info{background:#f8fafc;color:#334155;border:1px solid #cbd5e1}.alert-success{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.card{background:#fff;border:1px solid var(--border);border-radius:8px;padding:16px;margin-bottom:16px}.field{margin-bottom:12px}.field label{display:block;font-weight:600;margin-bottom:4px}.field input,.field select,.field textarea{width:100%}.field-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.muted{color:var(--text-muted);font-size:12px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;word-break:break-all}.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}.table-scroll{overflow-x:auto;margin-bottom:12px}.props{display:grid;grid-template-columns:max-content 1fr max-content 1fr;gap:4px 16px;margin:0 0 12px}.props dt{color:var(--text-muted);white-space:nowrap}.props dd{margin:0}@media (max-width: 720px){.props{grid-template-columns:max-content 1fr}}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:16px}.stat{background:#fff;border:1px solid var(--border);border-top:3px solid var(--primary);border-radius:8px;padding:10px 14px}.stat-label{color:var(--text-muted);font-size:12px}.stat-value{font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}.stat-unit{font-size:12px;font-weight:400;color:var(--text-muted);margin-left:4px}.parts-table th,.parts-table td{font-size:13px;padding:5px 8px}.parts-table .actions{white-space:nowrap}.parts-table .actions .btn+.btn{margin-left:4px}.chip{display:inline-block;padding:1px 8px;margin:0 4px 2px 0;border-radius:4px;border:1px solid #cbd5e1;background:#f8fafc;color:#334155;font-size:12px;white-space:nowrap}.chip-count{color:var(--text-muted);margin-left:2px}.chip-none{border-color:#fca5a5;background:#fef2f2;color:#991b1b;font-weight:600}.part-warnings{font-size:12px}.part-warnings summary{cursor:pointer;color:#92400e}.part-warnings ul{margin:4px 0 0;padding-left:16px}.files-row td{background:#fafafa}.files-list{display:flex;flex-wrap:wrap;gap:6px 16px;margin:4px 0;padding:0;list-style:none}.links-list{display:flex;flex-wrap:wrap;gap:2px 12px;margin:0;padding:0;list-style:none}.empty-state{text-align:center;padding:28px 16px;color:var(--text-muted)}.empty-state strong{display:block;color:var(--text);margin-bottom:4px}.history{margin-top:24px}.history>summary{cursor:pointer;font-weight:600;font-size:15px;margin-bottom:8px}:root{--cut: #cf3a2d;--bend: #a87a06;--mark: #287d4d;--plate-bg: #e5e7eb;--grid: #cbd5e1;--grid-major: #94a3b8;--solid: #cbd5e1}.bench-grid{display:grid;grid-template-columns:minmax(300px,360px) minmax(0,1fr);gap:16px;align-items:start}@media (max-width: 1100px){.bench-grid{grid-template-columns:minmax(0,1fr)}}.bench-in{display:grid;gap:12px}.bench-out{display:grid;gap:16px;min-width:0}.bench-out>.card{min-width:0}.shape-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.shape-tab{font:inherit;font-size:12px;font-weight:600;color:var(--text-muted);background:#fff;border:1px solid var(--border);border-radius:6px;padding:8px 4px 6px;display:grid;justify-items:center;gap:2px}.shape-tab svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.shape-tab:hover{color:var(--text);border-color:var(--text-muted)}.shape-tab.active{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}.schem{margin:0;background:#f9fafb;border:1px dashed var(--border);border-radius:6px;padding:6px}.schem svg{display:block;width:100%;height:170px}.schem .sh{fill:var(--primary-soft);stroke:#6b7280;stroke-width:1.2;vector-effect:non-scaling-stroke}.schem .sh-o{fill:none;stroke:#6b7280;stroke-width:1.2;vector-effect:non-scaling-stroke}.schem .cl{stroke:#9ca3af;stroke-width:1;stroke-dasharray:6 3 1 3;vector-effect:non-scaling-stroke}.schem .dim{stroke:var(--link);stroke-width:1;vector-effect:non-scaling-stroke}.schem text{fill:var(--link);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.schem figcaption{font-size:11px;color:var(--text-muted);text-align:center}.bench-fields{display:grid;gap:8px}.bench-field{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,150px);align-items:center;gap:2px 10px}.bench-field label{font-size:13px}.bench-field small{grid-column:1 / -1;color:var(--text-muted);font-size:11px;line-height:1.5}.bench-field select,.bench-field .num-in{min-width:0}.num-in{display:flex;align-items:center;gap:6px}.num-in input{width:100%;min-width:0;text-align:right;font-variant-numeric:tabular-nums}.num-in .unit{font-size:11px;color:var(--text-muted);min-width:1.6em}.plate-card{display:grid;gap:8px}.legend{display:flex;flex-wrap:wrap;gap:4px 16px;align-items:center;font-size:12px;color:var(--text-muted)}.legend b{font-size:14px;color:var(--text)}.sw{display:inline-block;width:18px;height:0;border-top:2px solid;vertical-align:middle;margin-right:6px}.sw.cut{border-color:var(--cut)}.sw.bend{border-color:var(--bend)}.sw.mark{border-color:var(--mark);border-top-style:dotted}.plate{position:relative;background:var(--plate-bg);border-radius:4px;overflow:hidden}.plate-svg{display:block;width:100%;height:auto;min-height:220px;max-height:480px}.plate-svg.stale{opacity:.45}.plate-svg .grid line{stroke:var(--grid);stroke-width:.6;vector-effect:non-scaling-stroke}.plate-svg .grid line.g1{stroke:var(--grid-major);stroke-width:1}.plate-svg .cut{fill:#fff;stroke:var(--cut);stroke-width:1.6;vector-effect:non-scaling-stroke;stroke-linejoin:round}.plate-svg .bend{fill:none;stroke:var(--bend);stroke-width:1;vector-effect:non-scaling-stroke}.plate-svg .mark-t{fill:var(--mark);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.plate-svg .pc.fit-bad .cut{fill:#fef2f2}.plate-svg .pc.hl .cut{fill:#cf3a2d1f;stroke-width:2.6}.plate-svg .scalebar line{stroke:#4b5563;stroke-width:1.4;vector-effect:non-scaling-stroke}.plate-svg .scalebar text{fill:#4b5563;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.plate-err{position:absolute;inset:auto 12px 12px 12px;margin:0;padding:8px 12px;background:#fef2f2;color:#991b1b;border:1px solid #fecaca;border-radius:4px;font-weight:600;font-size:13px}.view-toggle{display:flex;gap:6px}.view-btn{font:inherit;font-size:12px;font-weight:600;color:var(--text-muted);background:#fff;border:1px solid var(--border);border-radius:6px;padding:4px 12px;cursor:pointer}.view-btn:hover{color:var(--text);border-color:var(--text-muted)}.view-btn.active{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}.views{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:12px;align-items:start}.plate-card.views-solid .views{grid-template-columns:minmax(0,1fr) minmax(0,2fr)}.view-plate,.view-solid{min-width:0;display:grid;gap:8px}@media (max-width: 820px){.views,.plate-card.views-solid .views{grid-template-columns:minmax(0,1fr)}.plate-card.views-flat .view-solid,.plate-card.views-solid .view-plate{display:none}}.solid{margin:0;display:grid;gap:6px}.solid-bar{justify-content:space-between}.solid-views{display:flex;gap:4px}.solid-box{position:relative;background:var(--plate-bg);border-radius:4px;overflow:hidden}.solid-box.stale{opacity:.45}.solid-canvas{width:100%;height:380px;touch-action:none;cursor:grab}.solid-canvas:active{cursor:grabbing}.solid-canvas canvas{display:block;width:100%;height:100%}.solid-compact .solid-canvas{height:230px}.solid figcaption{font-size:11px;color:var(--text-muted)}.info{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:8px 16px;margin:0;padding:2px}.info div{border-left:2px solid var(--border);padding-left:10px}.info dt{font-size:11px;color:var(--text-muted)}.info dd{margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;font-variant-numeric:tabular-nums}.warns{margin:0;padding:8px 12px 8px 28px;background:#fef3c7;color:#92400e;border-radius:4px;font-size:13px;font-weight:600}.warns .apply{font:inherit;font-size:12px;margin-left:8px;padding:2px 10px;color:#fff;background:#b45309;border:0;border-radius:4px}.warns .apply:hover{filter:brightness(1.1)}.pieces-table th,.pieces-table td{font-size:13px;padding:5px 8px}.pieces-table tbody tr.hl{background:#fef2f2}.pieces-table th[scope=row]{font-weight:400;min-width:9em}.pieces-table tfoot th,.pieces-table tfoot td{font-weight:600;background:#f9fafb}.pieces-table .tag{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;color:var(--mark);margin-right:8px}.parts-table tr.clickable{cursor:pointer}.parts-table tr.clickable:hover{background:#f9fafb}.settings-section+.settings-section{margin-top:8px}.sheet-table{max-width:640px}.sheet-table input{width:100%;min-width:70px}.sheet-table td,.sheet-table th{padding:4px 6px}.login-screen{display:flex;justify-content:center;align-items:center;min-height:100vh;background:#f9fafb;padding:16px}.login-card{background:#fff;border-radius:12px;box-shadow:0 10px 15px -3px #0000001a;border-top:4px solid var(--primary);padding:32px;width:100%;max-width:400px}.login-title{text-align:center;color:var(--primary);font-size:28px;margin-bottom:4px}.login-lead,.login-note{text-align:center;color:var(--text-muted);font-size:13px}.login-links{display:flex;justify-content:center;gap:16px;margin:12px 0 4px;font-size:13px}.link-button{background:none;border:none;padding:0 4px;color:var(--link);text-decoration:underline;font-size:inherit}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:3000;display:flex;align-items:center;justify-content:center;background:#1118278c;padding:16px}.modal-card{width:100%;max-width:420px;padding:24px;background:#fff;border-radius:10px;box-shadow:0 20px 40px #00000040}.modal-title{margin:0 0 8px;font-size:18px;color:#b45309}.modal-lead{margin:0 0 16px;line-height:1.6;color:#4b5563}.modal-card input[readonly]{background:#f3f4f6;color:var(--text-muted)}.modal-actions{display:flex;flex-direction:column;gap:8px;margin-top:16px}