:root,:root[data-theme=light]{--bg-app: #f1f5f9;--bg-panel: #ffffff;--bg-card: #f8fafc;--bg-card-hover: #e2e8f0;--bg-input: #ffffff;--bg-subtle: #f1f5f9;--bg-hud: rgba(255, 255, 255, .94);--border-subtle: rgba(15, 23, 42, .14);--border-focus: #0284c7;--text-primary: #0f172a;--text-secondary: #475569;--text-heading: #1e293b;--accent-primary: #0284c7;--accent-hover: #0369a1;--accent-amber: #d97706;--accent-emerald: #059669;--accent-danger: #dc2626;--scrollbar-thumb: #cbd5e1;--scrollbar-track: #f1f5f9;color-scheme:light;accent-color:var(--accent-primary)}:root[data-theme=dark]{--bg-app: #090e1a;--bg-panel: #111827;--bg-card: #1e293b;--bg-card-hover: #26354d;--bg-input: #0b1120;--bg-subtle: rgba(15, 23, 42, .55);--bg-hud: rgba(15, 23, 42, .88);--border-subtle: rgba(148, 163, 184, .18);--border-focus: #38bdf8;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-heading: #e2e8f0;--accent-primary: #0ea5e9;--accent-hover: #38bdf8;--accent-amber: #f59e0b;--accent-emerald: 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#38bdf8;color:var(--text-primary)}.hud-banner.green{background:#10b98138;border:1px solid #10b981;color:var(--text-primary)}.canvas-hud-bottom-right{position:absolute;inset-block-end:12px;inset-inline-end:12px;display:flex;align-items:center;gap:4px;background:var(--bg-hud);border:1px solid var(--border-subtle);padding:4px;border-radius:8px}.hud-btn{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-subtle);padding-block:4px;padding-inline:8px;border-radius:5px;font-size:12px;font-weight:600;cursor:pointer}.hud-zoom-label{font-size:11px;font-family:monospace;padding-inline:6px;color:var(--text-secondary)}.viewport3d-hud-top{position:absolute;inset-block-start:42px;inset-inline-start:12px;inset-inline-end:12px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;pointer-events:none}.hud-pill-group{display:flex;flex-wrap:wrap;gap:4px;pointer-events:auto}.hud-pill{background:var(--bg-hud);color:var(--text-secondary);border:1px solid 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rgba(51,65,85,.45);color:#334155;font-size:10px;font-weight:800;letter-spacing:.04em;display:grid;place-items:center;cursor:pointer;backface-visibility:hidden;transition:background .12s ease,color .12s ease}.vc-face:hover{background:#bae6fd;color:#0369a1;border-color:#0284c7}.vc-front{transform:translateZ(27px)}.vc-back{transform:rotateY(180deg) translateZ(27px)}.vc-right{transform:rotateY(90deg) translateZ(27px)}.vc-left{transform:rotateY(-90deg) translateZ(27px)}.vc-top{transform:rotateX(90deg) translateZ(27px);background:linear-gradient(145deg,#f1f5f9,#dbeafe)}.vc-bottom{transform:rotateX(-90deg) translateZ(27px);background:linear-gradient(145deg,#cbd5e1,#94a3b8)}.vc-corner{position:absolute;inline-size:13px;block-size:13px;background:#94a3b859;border:1px solid #64748b;padding:0;cursor:pointer}.vc-corner:hover{background:#38bdf8;border-color:#0284c7}.vc-corner.nw{inset-block-start:0;inset-inline-start:0}.vc-corner.ne{inset-block-start:0;inset-inline-end:0}.vc-corner.sw{inset-block-end:0;inset-inline-start:0}.vc-corner.se{inset-block-end:0;inset-inline-end:0}.viewport3d-hud-bottom{position:absolute;inset-block-end:10px;inset-inline-start:12px;display:flex;gap:8px;background:var(--bg-hud);padding-block:4px;padding-inline:10px;border-radius:6px;font-size:11px;color:var(--text-secondary);pointer-events:none}.inspector-sidebar{background:var(--bg-panel);border-inline-start:1px solid var(--border-subtle);padding:10px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.inspector-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:8px;padding:10px;display:flex;flex-direction:column;gap:8px}.card-header-row{display:flex;align-items:center;justify-content:space-between;gap:6px}.inspector-card h3{font-size:12px;font-weight:700;color:var(--text-heading);text-transform:uppercase;letter-spacing:.04em}.levels-list{display:flex;flex-direction:column;gap:6px}.level-item{border:1px solid var(--border-subtle);border-radius:6px;background:var(--bg-subtle);overflow:hidden}.level-item.active{border-color:var(--border-focus);background:#0ea5e914}.level-item-main{display:flex;align-items:center;gap:8px;padding:7px 8px;cursor:pointer}.level-title-col{display:flex;flex-direction:column;font-size:12px}.level-title-col small{font-size:10px;color:var(--text-secondary)}.clusters-subtree{border-block-start:1px solid var(--border-subtle);padding:8px;background:var(--bg-panel);display:flex;flex-direction:column;gap:5px}.level-settings-inline{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px;font-size:11px;padding-block-end:6px;border-block-end:1px dashed var(--border-subtle)}.level-settings-inline label{display:flex;align-items:center;gap:4px}.level-settings-inline input[type=number]{inline-size:56px;background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:4px;padding:2px 4px;font-size:11px}.clusters-header{font-size:10px;font-weight:700;color:var(--text-secondary);text-transform:uppercase}.cluster-row{display:flex;align-items:center;gap:6px;padding:4px 6px;border-radius:5px;font-size:11px;cursor:pointer}.cluster-row.selected{background:#38bdf833;font-weight:600}.cluster-dot{inline-size:8px;block-size:8px;border-radius:50%}.cluster-name{flex:1}.icon-toggle-btn{background:transparent;border:none;cursor:pointer;font-size:12px}.add-cluster-row{display:flex;gap:4px;margin-block-start:4px}.add-cluster-row input{flex:1;background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:4px;padding:4px 6px;font-size:11px}.add-cluster-row button{background:var(--accent-primary);color:#fff;border:none;border-radius:4px;padding-inline:8px;font-size:11px;cursor:pointer}.plan-empty-box{font-size:11px;color:var(--text-secondary);display:flex;flex-direction:column;gap:8px;line-height:1.4}.plan-controls-stack,.prop-stack{display:flex;flex-direction:column;gap:8px;font-size:11px}.plan-stat-row,.stat-badge-row{display:flex;justify-content:space-between;align-items:center;background:var(--bg-subtle);padding:5px 8px;border-radius:5px}.prop-stack label{display:flex;flex-direction:column;gap:4px;color:var(--text-secondary)}.prop-stack input[type=text],.prop-stack input[type=number],.prop-stack select{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:5px;padding:5px 7px;font-size:12px}.two-col-inputs{display:grid;grid-template-columns:1fr 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.mat-name-cell{padding-inline-start:24px;font-style:italic}.std-badge{background:#0ea5e924;color:var(--accent-primary);padding:2px 6px;border-radius:4px;font-size:11px;font-family:monospace}.mono{font-family:monospace}.order-qty-cell{color:var(--accent-emerald)}.bom-standards-pane{padding:12px;display:flex;flex-direction:column;gap:18px}.inline-edit-input,.inline-edit-num{background:var(--bg-panel);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:4px;padding:4px 6px;font-size:11px;inline-size:100%}.inline-edit-num{inline-size:72px}.add-standard-form{background:var(--bg-card);padding:14px;border-radius:8px;display:flex;flex-direction:column;gap:12px}.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}.form-grid label{display:flex;flex-direction:column;gap:4px;font-size:11px;color:var(--text-secondary)}.form-grid input,.form-grid select{background:var(--bg-input);color:var(--text-primary);border:1px solid 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var(--accent-emerald);color:var(--accent-emerald)}.storage-status-banner.error{background:#ef444429;border:1px solid var(--accent-danger);color:var(--accent-danger)}.storage-status-banner.info{background:#0ea5e929;border:1px solid var(--accent-primary);color:var(--accent-primary)}.storage-status-banner button{background:transparent;border:none;color:inherit;cursor:pointer}.projects-list-container{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:12px;padding-inline-end:2px}.empty-projects-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:8px;padding:40px 24px;background:var(--bg-card);border:1px dashed var(--border-subtle);border-radius:10px;color:var(--text-secondary)}.empty-projects-state .empty-icon{font-size:32px}.empty-projects-state h3{font-size:15px;color:var(--text-heading)}.empty-projects-state p{font-size:12px;max-inline-size:460px;line-height:1.5}.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}.project-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:9px;padding:12px;display:flex;flex-direction:column;justify-content:space-between;gap:10px;transition:border-color .15s ease}.project-card:hover{border-color:var(--border-focus)}.project-card.current{border-color:var(--accent-primary);background:#0ea5e90f}.project-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}.project-card-top h4{font-size:13px;color:var(--text-heading);display:flex;align-items:center;gap:6px}.active-project-pill{background:var(--accent-primary);color:#fff;font-size:9px;padding:1px 6px;border-radius:999px;text-transform:uppercase}.project-timestamp{display:block;font-size:10px;color:var(--text-secondary);margin-block-start:2px}.drive-synced-badge{background:#2563eb24;color:#3b82f6;border:1px solid rgba(59,130,246,.35);font-size:10px;font-weight:600;padding:2px 6px;border-radius:5px;white-space:nowrap}.project-card-stats{display:flex;flex-wrap:wrap;gap:6px;font-size:11px;color:var(--text-secondary);background:var(--bg-subtle);padding:6px 8px;border-radius:6px}.project-card-actions{display:flex;gap:6px}.google-sso-card{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:9px;padding:12px 14px}.google-sso-info{display:flex;flex-direction:column;gap:3px}.google-sso-info strong{font-size:13px;color:var(--text-heading)}.google-sso-info 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var(--border-subtle)}.btn-welcome-skip{background:var(--bg-card);color:var(--text-secondary);border:1px solid var(--border-subtle);padding:10px 16px;border-radius:8px;font-size:12px;font-weight:600;cursor:pointer}.btn-welcome-skip:hover{color:var(--text-primary);border-color:var(--border-focus)}.btn-welcome-start{background:linear-gradient(135deg,#0284c7,#0369a1);color:#fff;border:1px solid #38bdf8;padding:10px 20px;border-radius:8px;font-size:13px;font-weight:700;cursor:pointer;box-shadow:0 4px 14px #0284c759}.btn-welcome-start.sm{padding:6px 12px;font-size:11px}.btn-welcome-start:hover{filter:brightness(1.08)}.tour-guide-dock{position:fixed;z-index:140;inline-size:min(390px,92vw);background:var(--bg-panel);border:2px solid var(--border-focus);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:10px;box-shadow:0 20px 48px #0000006b;transition:all .22s ease}.tour-guide-dock.target-header-views{inset-block-start:86px;inset-inline-start:50%;transform:translate(-50%)}.tour-guide-dock.target-left-toolbox{inset-block-start:120px;inset-inline-start:224px}.tour-guide-dock.target-canvas-stage{inset-block-end:48px;inset-inline-start:50%;transform:translate(-50%)}.tour-guide-dock.target-right-inspector{inset-block-start:120px;inset-inline-end:334px}.tour-guide-dock.target-menubar-bom{inset-block-start:86px;inset-inline-end:20px}.tour-card-header{display:flex;align-items:center;justify-content:space-between;gap:8px}.tour-step-badge{background:#0ea5e929;color:var(--accent-primary);padding:3px 9px;border-radius:999px;font-size:10px;font-weight:700;text-transform:uppercase}.tour-skip-btn{background:transparent;color:var(--text-secondary);border:1px solid var(--border-subtle);padding:3px 8px;border-radius:5px;font-size:11px;font-weight:600;cursor:pointer}.tour-skip-btn:hover{color:var(--accent-danger);border-color:var(--accent-danger)}.tour-card-title{font-size:15px;color:var(--text-heading);line-height:1.3}.tour-card-desc{font-size:12px;color:var(--text-secondary);line-height:1.5}.tour-tip-box{background:var(--bg-subtle);border-inline-start:3px solid var(--accent-amber);padding:7px 10px;border-radius:5px;font-size:11px;color:var(--text-primary);line-height:1.4}.tour-try-btn{background:var(--bg-card);color:var(--accent-primary);border:1px dashed var(--border-focus);padding:7px 12px;border-radius:7px;font-size:12px;font-weight:700;cursor:pointer;text-align:center}.tour-try-btn:hover{background:#0ea5e91f}.tour-card-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-block-start:6px;border-block-start:1px solid var(--border-subtle)}.tour-dots{display:flex;align-items:center;gap:6px}.tour-dot{inline-size:8px;block-size:8px;border-radius:50%;border:none;background:var(--border-subtle);cursor:pointer;padding:0}.tour-dot.active{inline-size:18px;border-radius:999px;background:var(--accent-primary)}.tour-nav-btns{display:flex;gap:6px}.tour-quick-links{display:flex;align-items:center;justify-content:center;gap:8px;font-size:10px;color:var(--text-secondary)}.tour-link-btn{background:transparent;border:none;color:var(--text-secondary);font-size:10px;text-decoration:underline;cursor:pointer}.tour-link-btn:hover{color:var(--accent-primary)}