:root{--bg: #f1f5f9;--panel: #ffffff;--panel-2: #f8fafc;--border: #d8dee9;--text: #1e293b;--muted: #64748b;--accent: #0284c7;--accent-2: #16a34a;--danger: #dc2626;--overlay-bg: rgba(255, 255, 255, .92);--ui-row-h: 24px;--ui-font-sm: 13px;--ui-font-xs: 11px;--ui-pad-tight: 4px 8px;--ui-gap-tight: 6px;--ui-radius: 6px;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;width:100%;background:var(--bg);color:var(--text)}.app{display:flex;flex-direction:column;height:100vh;width:100vw;overflow:hidden}.menu-bar{display:flex;align-items:stretch;background:var(--panel);border-bottom:1px solid var(--border);padding:0 6px;flex:0 0 auto;font-size:var(--ui-font-sm);-webkit-user-select:none;user-select:none}.menu-root{position:relative}.menu-title{background:transparent;border:none;color:var(--text);padding:4px 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0}.ref-skipped{margin-top:2px;opacity:.85}.ref-placement{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-top:6px}.ref-ph{display:flex;flex-direction:column;gap:2px}.ref-ph-label{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}.ref-ph input{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 6px;width:100%;font-size:12px}.ref-tools,.ref-crop{display:flex;gap:6px;margin-top:6px}.ref-crop-btn{flex:1;background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:5px 8px;font-size:12px;cursor:pointer}.ref-crop-btn:hover{border-color:var(--accent)}.ref-crop-btn.active{border-color:var(--accent);color:var(--accent)}.ref-crop-btn.subtle{color:var(--muted);flex:0 0 auto}.select-counts{margin-bottom:4px}.select-counts .kv{padding:3px 0}.select-counts .kv span:last-child{font-variant-numeric:tabular-nums;font-weight:600}.layer-row{display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:8px;margin-bottom:8px}.layer-row.off .layer-name{color:var(--muted)}.layer-name{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;width:100%;font-size:13px}.layer-vis,.layer-vis-spacer{width:30px;height:30px;display:flex;align-items:center;justify-content:center}.layer-vis{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;font-size:14px;line-height:1;padding:0}.layer-vis:hover{border-color:var(--accent)}.layer-vis.off{color:var(--muted);opacity:.7}.layer-count{min-width:16px;text-align:right;font-variant-numeric:tabular-nums}.layer-add{grid-template-columns:auto 1fr auto;margin-top:10px;padding-top:10px;border-top:1px dashed var(--border)}.layer-add .layer-name::placeholder{color:var(--muted)}.dxf-layers-header{margin-top:14px;padding-top:8px;border-top:1px solid var(--border);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:4px}.dxf-ref-label{font-size:11px;color:var(--muted);margin:6px 0 2px}.dxf-layer-row{display:grid;grid-template-columns:auto auto 1fr;align-items:center;gap:6px;margin-bottom:4px}.dxf-layer-row.off .dxf-layer-name{color:var(--muted)}.dxf-layer-name{font-size:12px;color:var(--text)}.dxf-layer-color{width:12px;height:12px;border-radius:2px;border:1px solid var(--border);flex-shrink:0;display:inline-block}.link-list{list-style:none;margin:0;padding:0}.link-item{display:flex;justify-content:space-between;gap:8px;padding:6px 8px;border:1px solid var(--border);border-radius:6px;margin-bottom:6px;cursor:pointer;font-size:12px}.link-item:hover{border-color:var(--accent)}.link-item.active{border-color:var(--accent-2)}.link-detail{margin-top:12px;padding-top:10px;border-top:1px dashed var(--border)}.kv{display:flex;justify-content:space-between;font-size:13px;padding:2px 0}.kv span:first-child{color:var(--muted)}.btn-row{display:flex;gap:8px;margin-top:10px}.btn-row button{flex:1}button{cursor:pointer}.btn-row button,.nudge button{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font-size:13px}.btn-row button:hover{border-color:var(--accent)}.danger{color:var(--danger)!important}.danger:hover{border-color:var(--danger)!important}.edge-card{border:1px solid var(--border);border-radius:6px;padding:8px;margin-bottom:8px}.edge-card-head{display:flex;justify-content:space-between;align-items:center}.role-tag{font-size:11px;color:var(--accent);border:1px solid var(--accent);border-radius:4px;padding:1px 6px}.nudge{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-top:8px}.link-marker{background:var(--overlay-bg);color:var(--text);border:1px solid var(--border);border-radius:4px;font-size:11px;padding:2px 6px;white-space:nowrap;cursor:pointer}.link-marker:hover{border-color:var(--accent-2)}.pick-list{position:fixed;z-index:50;min-width:150px;max-width:220px;background:var(--overlay-bg);border:1px solid var(--border);border-radius:6px;padding:3px;box-shadow:0 4px 14px #00000040;font-size:12px;display:flex;flex-direction:column;gap:1px}.pick-row{display:flex;align-items:baseline;gap:8px;width:100%;text-align:left;background:transparent;border:none;border-radius:4px;color:var(--text);padding:3px 7px;cursor:pointer;white-space:nowrap}.pick-row:hover{background:var(--panel-2)}.pick-row.active{background:#06b6d4;color:#fff}.pick-kind{font-weight:600;min-width:44px}.pick-row.active .pick-kind{color:#fff}.pick-name{color:var(--muted);overflow:hidden;text-overflow:ellipsis}.pick-row.active .pick-name{color:#ffffffd9}.pick-hint{color:var(--muted);font-size:10px;padding:2px 7px 1px;border-top:1px solid var(--border);margin-top:2px}.toolbar-hint{color:var(--muted);font-size:12px;margin-left:4px}.toolbar-field{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}.toolbar-field input{width:64px;background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:5px 8px;font-size:13px}.toolbar-field input:focus{outline:none;border-color:var(--accent)}.ex-holes{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:4px}.link-btn{background:transparent;color:var(--accent);border:1px solid var(--border);border-radius:6px;font-size:12px;padding:3px 8px;cursor:pointer}.link-btn:hover{border-color:var(--accent)}.draw-hud{position:absolute;top:8px;left:50%;transform:translate(-50%);z-index:7;display:flex;flex-direction:column;gap:6px;min-width:220px;background:var(--overlay-bg);border:1px solid var(--accent);border-radius:8px;padding:8px 10px;font-size:13px}.draw-hud-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.draw-hud-methods{display:flex;gap:0;border:1px solid var(--border);border-radius:6px;overflow:hidden}.draw-hud-methods button{flex:1;background:var(--panel-2);color:var(--muted);border:none;border-left:1px solid var(--border);padding:5px 8px;font-size:12px;cursor:pointer;white-space:nowrap}.draw-hud-methods button:first-child{border-left:none}.draw-hud-methods button:hover:not(.active){color:var(--text)}.draw-hud-methods button.active{background:var(--accent);color:var(--bg, #0b0d10);font-weight:600}.draw-hud-actions{display:flex;gap:6px}.draw-hud-actions button{flex:1;background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:5px 8px;font-size:12px;cursor:pointer}.draw-hud-actions button:hover:not(:disabled){border-color:var(--accent)}.draw-hud-actions button:disabled{opacity:.45;cursor:default}.draw-hud-actions button.subtle{color:var(--muted)}.measure-readout{display:flex;gap:16px}.measure-readout>div{display:flex;flex-direction:column;gap:1px}.measure-readout strong{font-variant-numeric:tabular-nums}.measure-label{background:var(--overlay-bg);color:var(--text);border:1px solid var(--accent);border-radius:4px;font-size:11px;font-variant-numeric:tabular-nums;padding:2px 6px;white-space:nowrap;pointer-events:none}.reassign-hud{position:absolute;top:8px;left:50%;transform:translate(-50%);z-index:8;display:flex;flex-direction:column;gap:6px;min-width:260px;background:var(--overlay-bg);border:1px solid var(--accent-2);border-radius:8px;padding:8px 10px;font-size:13px}.reassign-hud-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.reassign-hud code{font-size:11px;color:var(--muted)}.reassign-hud-actions{display:flex;gap:6px}.reassign-hud-actions button{flex:1;background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:5px 8px;font-size:12px;cursor:pointer}.reassign-hud-actions button:hover{border-color:var(--accent)}.reassign-hud-actions button.subtle{color:var(--muted)}.link-hint{position:absolute;top:8px;left:50%;transform:translate(-50%);z-index:6;background:var(--overlay-bg);border:1px solid var(--accent-2);color:var(--text);font-size:12px;padding:4px 10px;border-radius:6px;display:flex;align-items:center;gap:8px}.link-hint button{background:transparent;color:var(--accent-2);border:1px solid var(--accent-2);border-radius:4px;font-size:11px;padding:1px 6px}.context-bar{position:absolute;top:8px;left:50%;transform:translate(-50%);z-index:6;background:var(--overlay-bg);border:1px solid var(--accent);color:var(--text);font-size:12px;padding:4px 8px 4px 10px;border-radius:6px;display:flex;align-items:center;gap:6px}.context-bar .crumb{background:transparent;border:none;color:var(--accent);font-size:12px;padding:0;cursor:pointer}.context-bar .crumb.current{color:var(--text);font-weight:600;cursor:default}.context-bar .crumb-sep{color:var(--muted)}.context-bar .context-exit{margin-left:6px;background:transparent;color:var(--accent);border:1px solid var(--accent);border-radius:4px;font-size:11px;padding:1px 6px;cursor:pointer}.palette-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:transparent}.palette{position:fixed;z-index:41;transform:translate(8px,8px);background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 8px 24px #0f172a2e;min-width:180px;max-width:240px}.palette-header{display:flex;align-items:center;justify-content:space-between;padding:6px 8px;border-bottom:1px solid var(--border);cursor:move;touch-action:none;border-radius:8px 8px 0 0;background:var(--panel-2)}.palette-grip{width:28px;height:4px;border-radius:2px;background:var(--border)}.palette-close{background:transparent;color:var(--muted);border:none;font-size:16px;line-height:1;padding:0 4px;cursor:pointer}.palette-close:hover{color:var(--text)}.palette-body{display:flex;flex-direction:column;gap:6px;padding:10px}.palette-title{font-weight:600;font-size:13px;color:var(--accent)}.palette-note{font-size:11px;color:var(--muted)}.palette-note.active{color:var(--accent, #4caf50);font-weight:600}.palette-label{font-size:11px;color:var(--muted);margin-top:4px}.palette-action{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:7px 10px;font-size:13px;text-align:left}.palette-action:hover{border-color:var(--accent)}.palette-action.danger{color:var(--danger)}.palette-action.danger:hover{border-color:var(--danger)}.palette-action.subtle{color:var(--muted);text-align:center}.palette-action.active{background:var(--accent);color:#fff;border-color:var(--accent)}.array-hud{position:fixed;top:54px;left:50%;transform:translate(-50%);z-index:50;display:flex;align-items:center;gap:10px;padding:6px 14px;border-radius:999px;background:var(--panel);border:1px solid var(--border);box-shadow:0 6px 18px #0f172a2e;font-size:13px;color:var(--text);white-space:nowrap;pointer-events:none}.array-hud b{color:var(--accent);font-weight:600}.array-hud-count{font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}.array-hud-tip{color:var(--muted);font-size:11px}.array-hud-hint{animation:array-hint-fade 5s ease forwards}@keyframes array-hint-fade{0%{opacity:0;transform:translate(-50%) translateY(-4px)}8%{opacity:1;transform:translate(-50%) translateY(0)}78%{opacity:1}to{opacity:0;transform:translate(-50%) translateY(-4px)}}.palette-row{display:flex;gap:4px}.palette-row .palette-action{flex:1;text-align:center;padding:6px 4px}.palette-row .palette-action.copy{flex:0 0 auto;color:var(--muted);padding:6px 10px}.palette-row .palette-action.copy:hover{color:var(--text);border-color:var(--accent)}.palette select{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font-size:12px;width:100%}.move-fields{display:flex;gap:8px}.move-fields label{flex:1;display:flex;align-items:center;gap:6px}.move-fields label span{color:var(--muted);font-size:13px;width:12px}.move-fields input{flex:1;width:100%;background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font-size:13px}.move-fields input:focus{outline:none;border-color:var(--accent)}