:root{--bg: #ffffff;--bg-soft: #fafbfc;--border: #e5e8ec;--border-strong: #d5dae1;--hairline: #f1f3f5;--text: #1f2937;--muted: #6b7280;--faint: #9ca3af;--blue: #2b7bf3;--blue-dark: #1d66db;--blue-tint: #eef4fe;--blue-border: #c9dcfb;--crit: #dc2626;--crit-bg: #fdecec;--crit-border: #f6cdcd;--major: #d97706;--major-bg: #fdf3e7;--major-border: #f3ddbc;--minor: #b45309;--minor-bg: #fefce8;--minor-border: #efe6b4;--info: #2563eb;--info-bg: #eef4fe;--info-border: #c9dcfb;--ok: #16a34a;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 2px rgba(0, 0, 0, .04);--sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font:14px/1.55 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h3{margin:4px 0 2px;font-size:13.5px;font-weight:600}.dc-item{display:flex;gap:12px;background:#fff;border:1px solid var(--border);border-radius:10px;padding:14px 16px;box-shadow:var(--shadow)}.dc-head{display:flex;align-items:center;gap:9px;margin-bottom:5px}.dc-text{font-size:13.5px}@media(max-width:900px){.topbar{padding:0 16px}.badge-demo{display:none}.layout{flex-direction:column}.sidebar{width:100%;max-height:38vh;border-right:none;border-bottom:1px solid var(--border);padding:16px}.workspace{padding:20px 16px}.summary-cols,.stat-tiles{grid-template-columns:1fr 1fr}.drawings-tab{grid-template-columns:1fr}}.viewer-toolbar{display:flex;align-items:center;gap:10px;margin-bottom:8px}.viewer-toolbar .spacer{flex:1}.zoom-btn{border:1px solid rgba(15,23,42,.14);background:#fff;border-radius:7px;padding:4px 10px;font-size:12px;cursor:pointer}.zoom-btn:hover{background:#0f172a0a}.sheet-viewer{overflow:auto;max-height:72vh;border:1px solid rgba(15,23,42,.12);border-radius:10px;background:#fff}.sheet-stage{position:relative;width:100%}.sheet-stage.zoom{width:250%}.sheet-stage img{display:block;width:100%;height:auto;-webkit-user-select:none;user-select:none}.sheet-stage .pin{transform:translate(-50%,-50%);border:2px solid #fff}.sheet-stage .pin.selected{outline:3px solid rgba(15,23,42,.55);z-index:3}.bbox-hl{position:absolute;border:2px solid rgba(220,38,38,.85);background:#dc262614;border-radius:3px;pointer-events:none;z-index:2}.pin-tray{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-top:8px}.pin-static.tray{cursor:pointer;border:2px solid #fff}.pin-static.tray.selected{outline:3px solid rgba(15,23,42,.55)}.dc-item{cursor:pointer;border-radius:10px;padding:4px}.dc-item.selected{outline:2px solid rgba(15,23,42,.35);background:#0f172a08}