.draggable-wrapper{display:flex;align-items:stretch;gap:0}.drag-handle{display:flex;align-items:center;justify-content:center;width:18px;min-height:100%;background:var(--bg-panel);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border);border-right:none;border-radius:var(--radius) 0 0 var(--radius);color:var(--text-secondary);cursor:grab;transition:background .15s ease,color .15s ease;flex-shrink:0;position:relative;z-index:2}.drag-handle:hover{background:rgba(255,255,255,.15);color:var(--text-primary)}.drag-handle.dragging{cursor:grabbing;background:var(--bg-active);color:var(--accent)}.draggable-wrapper>*:not(.drag-handle){border-top-left-radius:0!important;border-bottom-left-radius:0!important;border-left:none!important}.section-canvas{position:absolute;top:0;right:0;bottom:0;left:0;background:#0a0a12;overflow:hidden}.section-canvas svg{display:block;width:100%;height:100%;touch-action:none}.tools-panel{background:var(--bg-panel);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius);padding:6px;width:max-content;max-width:calc(100vw - 24px);display:flex;flex-direction:column;gap:6px;-webkit-user-select:none;user-select:none;box-shadow:0 4px 24px #0006}.tools-header{display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:16px}.tools-header-utils{display:flex;flex-direction:row;align-items:center;gap:4px}.tools-bar{display:flex;flex-direction:row;align-items:stretch;gap:8px}.tools-group{display:flex;flex-direction:column;gap:5px;flex:0 0 auto;padding:5px 7px 6px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-sm)}.tools-group-label{font-size:8.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--text-muted);text-align:center;line-height:1;-webkit-user-select:none;user-select:none;pointer-events:none}.tools-group-row{display:flex;flex-direction:row;gap:4px}.tools-vdivider{flex:0 0 auto;width:1px;height:28px;background:var(--border)}.tools-name{flex:0 1 auto;max-width:160px;font-size:13px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:text;padding:2px 4px;border-radius:4px}.tools-name:hover{background:rgba(255,255,255,.04)}.tools-name-input{flex:0 1 auto;width:130px;min-width:0;font-size:13px;font-weight:600;font-family:inherit;color:var(--text-primary);background:rgba(255,255,255,.08);border:1px solid var(--accent);border-radius:4px;padding:1px 4px;outline:none}.tools-close{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:none;padding:4px;border-radius:4px;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .12s ease,color .12s ease}.tools-close:hover{background:rgba(239,68,68,.15);color:var(--danger)}.tools-divider{height:1px;background:var(--border);margin:2px 0}.tools-help{width:100%;max-width:460px;box-sizing:border-box;max-height:50vh;overflow-y:auto;padding:4px 6px 2px;font-size:12px;line-height:1.45;color:var(--text-secondary)}.viewer-btn{display:flex;align-items:center;justify-content:center;gap:6px;height:28px;padding:0 10px;border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--text-primary);font-size:11.5px;font-family:inherit;border-radius:var(--radius-sm);cursor:pointer;transition:background .12s ease,border-color .12s ease;white-space:nowrap}.viewer-btn:hover{background:rgba(255,255,255,.08);border-color:#ffffff26}.viewer-btn.viewer-btn-active{background:var(--bg-active);border-color:#d8c8a866;color:var(--accent)}.viewer-btn.viewer-btn-icon{padding:0 8px}.viewer-btn-group{display:inline-flex;width:100%}.viewer-btn-group .viewer-btn{flex:1;border-radius:0}.viewer-btn-group .viewer-btn:first-child{border-top-left-radius:var(--radius-sm);border-bottom-left-radius:var(--radius-sm)}.viewer-btn-group .viewer-btn:last-child{border-top-right-radius:var(--radius-sm);border-bottom-right-radius:var(--radius-sm)}.viewer-btn-group .viewer-btn+.viewer-btn{margin-left:-1px}.viewer-btn-group .viewer-btn.viewer-btn-active{z-index:1}.viewer-btn.viewer-btn-danger{color:#f87171}.viewer-btn.viewer-btn-danger:hover:not(:disabled){background:rgba(239,68,68,.15);border-color:#ef444466;color:#ef4444}.viewer-btn.viewer-btn-line{background:rgba(34,197,94,.14);border-color:#22c55e66;color:#4ade80}.viewer-btn.viewer-btn-line:hover:not(:disabled){background:rgba(34,197,94,.24);border-color:#22c55ea6;color:#22c55e}.viewer-btn.viewer-btn-arc{background:rgba(59,130,246,.14);border-color:#3b82f666;color:#60a5fa}.viewer-btn.viewer-btn-arc:hover:not(:disabled){background:rgba(59,130,246,.24);border-color:#3b82f6a6;color:#93c5fd}.viewer-btn:disabled{opacity:.35;cursor:default}.viewer-btn:disabled:hover{background:rgba(255,255,255,.04);border-color:var(--border)}.help-title{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;font-weight:700;color:#fbbf24;margin-bottom:8px;padding-bottom:6px;border-bottom:1px solid rgba(251,191,36,.2)}.help-close{display:flex;align-items:center;justify-content:center;width:22px;height:22px;padding:0;background:transparent;border:1px solid rgba(251,191,36,.25);border-radius:4px;color:#fbbf24;cursor:pointer;transition:background .12s,border-color .12s}.help-close:hover{background:rgba(251,191,36,.12);border-color:#fbbf248c}.help-section{margin-top:10px}.help-section:first-of-type{margin-top:0}.help-section-title{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:6px}.help-row{display:grid;grid-template-columns:92px 1fr;gap:8px;padding:3px 0;align-items:start}.help-row+.help-row{border-top:1px solid rgba(255,255,255,.04)}.help-key{color:#fbbf24;font-weight:600;font-size:10.5px}.tools-help b{color:var(--text-primary);font-weight:600}.section-viewer-legend{position:absolute;bottom:12px;left:12px;background:rgba(10,10,18,.8);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 10px;font-size:11px;color:var(--text-secondary);display:flex;flex-direction:column;gap:4px;-webkit-user-select:none;user-select:none;z-index:5}.legend-row{display:flex;align-items:center;gap:6px}.legend-dot{width:10px;height:10px;border-radius:50%;box-shadow:0 0 0 1px #ffffff1a}.legend-axes{margin-top:4px;padding-top:4px;border-top:1px solid var(--border);color:var(--text-muted);font-variant-numeric:tabular-nums}.tools-fit-row{display:flex;flex-direction:row;align-items:center;gap:6px;padding-top:6px;border-top:1px solid var(--border)}.tools-fit-hint{flex:1;min-width:0;padding-left:6px;text-align:right;font-size:11.5px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-variant-numeric:tabular-nums}.tools-fit-hint-muted{color:var(--text-muted)}.hint-sep{color:#ffffff40}.hint-count{color:var(--accent);font-weight:700}.cursor-tip{position:fixed;pointer-events:none;z-index:50;padding:4px 8px;background:rgba(15,23,42,.92);border:1px solid rgba(216,200,168,.4);border-radius:4px;font-size:11px;font-weight:500;color:var(--accent);white-space:nowrap;box-shadow:0 2px 8px #00000080;-webkit-user-select:none;user-select:none}.app-switch{position:absolute;top:12px;left:50%;transform:translate(-50%);display:grid;grid-auto-flow:column;gap:2px;padding:2px;background:var(--bg-panel);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:0 4px 24px #0006;z-index:30;-webkit-user-select:none;user-select:none}.app-switch-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:transparent;padding:5px 16px;font-size:11px;font-family:inherit;font-weight:600;letter-spacing:.03em;color:var(--text-secondary);text-decoration:none;border-radius:4px;cursor:pointer;transition:background .12s ease,color .12s ease}.app-switch-btn:hover:not(.active){color:var(--text-primary);background:rgba(255,255,255,.04)}.app-switch-btn.active{background:var(--bg-active);color:var(--accent);cursor:default}:root{--bg-primary: #0f0f1a;--bg-panel: rgba(15, 15, 26, .85);--bg-hover: rgba(255, 255, 255, .06);--bg-active: rgba(216, 200, 168, .15);--border: rgba(255, 255, 255, .08);--text-primary: #e2e8f0;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #d8c8a8;--accent-strong: #c9b790;--danger: #ef4444;--radius: 10px;--radius-sm: 6px}#root{display:flex;width:100%;height:100%;background:var(--bg-primary);color:var(--text-primary);position:relative}.app-root{position:relative;width:100%;height:100%;background:var(--bg-primary);color:var(--text-primary);overflow:hidden}.app-canvas-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;color:var(--text-muted);font-size:13px;line-height:1.6;-webkit-user-select:none;user-select:none;pointer-events:none}.app-stage-hint-sub{display:inline-block;margin-top:8px;color:var(--text-muted);font-size:11px;opacity:.7}.app-notice{position:fixed;bottom:18px;left:50%;transform:translate(-50%);max-width:min(520px,calc(100vw - 32px));background:var(--bg-panel);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius);padding:10px 14px;color:var(--text-primary);font-size:12px;line-height:1.5;z-index:260;cursor:pointer;box-shadow:0 8px 30px #00000073}.error-boundary{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);color:var(--text-primary);z-index:400;padding:24px}.error-boundary-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:22px;max-width:440px}.error-boundary-title{font-size:15px;font-weight:600;margin-bottom:8px}.error-boundary-text{font-size:12px;line-height:1.6;color:var(--text-secondary);margin-bottom:16px}.error-boundary-actions{display:flex;gap:8px;justify-content:flex-end}.sections-panel{background:var(--bg-panel);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius);padding:8px;min-width:260px;max-width:300px;display:flex;flex-direction:column;gap:4px;color:var(--text-primary);-webkit-user-select:none;user-select:none;box-shadow:0 4px 24px #0006}.sections-header{display:flex;align-items:center;gap:8px;padding:4px 8px 6px;font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--text-secondary);border-bottom:1px solid var(--border)}.sections-count{margin-left:auto;font-size:10px;background:rgba(255,255,255,.06);color:var(--text-primary);padding:1px 6px;border-radius:8px;letter-spacing:0}.sections-bulk-actions{display:flex;gap:2px}.sections-bulk-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:none;padding:4px;border-radius:4px;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .12s ease,color .12s ease}.sections-bulk-btn:hover:not(:disabled){background:rgba(216,200,168,.18);color:var(--accent)}.sections-bulk-btn:disabled{opacity:.4;cursor:default}.sections-bulk-btn-danger:hover:not(:disabled){background:rgba(239,68,68,.15);color:var(--danger)}.sections-load-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:8px 12px;margin:4px 0 2px;background:rgba(216,200,168,.12);border:1px solid rgba(216,200,168,.35);border-radius:var(--radius-sm);color:var(--accent);font-size:12px;font-weight:600;font-family:inherit;cursor:pointer;transition:background .12s ease,border-color .12s ease}.sections-load-btn:hover{background:rgba(216,200,168,.22);border-color:#d8c8a88c}.sections-units-row{display:flex;gap:8px;padding:4px 8px}.sections-unit-field{display:flex;flex-direction:column;gap:3px;flex:1;min-width:0}.sections-unit-field>span{font-size:9.5px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.sections-unit-field select{width:100%;background:rgba(255,255,255,.04);color:var(--text-primary);color-scheme:dark;border:1px solid var(--border);border-radius:4px;padding:2px 6px;font-size:11px;font-family:inherit;cursor:pointer}.sections-unit-field option{background:var(--bg-primary);color:var(--text-primary)}.sections-unit-field select:focus{outline:none;border-color:var(--accent)}.sections-unit-field select:disabled{opacity:.4;cursor:not-allowed}.sections-unit-hint{padding:0 8px 4px;font-size:9.5px;line-height:1.3;color:var(--text-muted)}.sections-empty{padding:14px 10px;font-size:11.5px;color:var(--text-muted);line-height:1.5;text-align:center}.sections-empty-hint{display:block;margin-top:4px;color:var(--text-secondary)}.sections-empty kbd{background:rgba(255,255,255,.08);border:1px solid var(--border);border-radius:3px;padding:1px 5px;font-family:inherit;font-size:10px;color:var(--text-primary)}.sections-addin-link{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:2px;padding:6px 8px 2px;border-top:1px solid var(--border);font-size:10.5px;color:var(--text-secondary);text-decoration:none;transition:color .15s ease}.sections-addin-link:hover{color:var(--accent)}.sections-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;max-height:70vh;overflow-y:auto}.section-item{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:var(--radius-sm);cursor:pointer;transition:background .12s ease}.section-item:hover{background:rgba(255,255,255,.04)}.section-item.selected{background:var(--bg-active)}.section-dot{width:9px;height:9px;border-radius:50%;flex-shrink:0;background:var(--text-muted);box-shadow:0 0 0 1px #ffffff1a}.section-dot.is-edited{background:var(--accent)}.section-info{flex:1;min-width:0}.section-name{font-size:12px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.section-name-input{width:100%;font-size:12px;font-family:inherit;color:var(--text-primary);background:rgba(255,255,255,.06);border:1px solid var(--border);border-radius:4px;padding:1px 4px;outline:none}.section-name-input:focus{border-color:var(--accent);background:rgba(255,255,255,.1)}.section-detail{font-size:10.5px;color:var(--text-muted);font-variant-numeric:tabular-nums;margin-top:1px}.section-detail-warn{color:#d8a657}.section-no-placement{display:inline-flex;align-items:center;flex-shrink:0;color:#d8a657;opacity:.9}.section-action,.section-delete{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:none;padding:4px;border-radius:4px;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:opacity .12s ease,background .12s ease,color .12s ease}.section-action{opacity:1}.section-delete{opacity:0}.section-item:hover .section-delete{opacity:1}.section-action:hover{background:rgba(216,200,168,.18);color:var(--accent)}.section-delete:hover{background:rgba(239,68,68,.15);color:var(--danger)}.confirm-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.55);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:10000;animation:confirm-modal-fade-in .12s ease}.confirm-modal{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;max-width:360px;display:grid;grid-template-columns:auto 1fr;column-gap:12px;row-gap:4px;align-items:start;color:var(--text-primary);box-shadow:0 20px 50px #0009;animation:confirm-modal-scale-in .14s cubic-bezier(.16,1,.3,1)}.confirm-modal-icon{width:32px;height:32px;border-radius:50%;background:rgba(239,68,68,.15);color:var(--danger);display:flex;align-items:center;justify-content:center;flex-shrink:0;grid-row:1 / span 2}.confirm-modal-body{display:flex;flex-direction:column;gap:4px;min-width:0}.confirm-modal-title{font-size:13px;font-weight:600;color:var(--text-primary)}.confirm-modal-text{font-size:12px;color:var(--text-secondary);line-height:1.4}.confirm-modal-actions{grid-column:1 / -1;display:flex;justify-content:flex-end;gap:6px;margin-top:8px}.confirm-modal-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--text-primary);font-size:12px;padding:6px 14px;border-radius:4px;cursor:pointer;transition:background .12s ease,border-color .12s ease;font-family:inherit}.confirm-modal-btn:hover{background:rgba(255,255,255,.1)}.confirm-modal-btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.confirm-modal-btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.confirm-modal-btn-danger:hover{background:#dc2626;border-color:#dc2626}@keyframes confirm-modal-fade-in{0%{opacity:0}to{opacity:1}}@keyframes confirm-modal-scale-in{0%{opacity:0;transform:scale(.94)}to{opacity:1;transform:scale(1)}}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}