:root{--font-heading: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--bg-app: #0f172a;--bg-surface: rgba(30, 41, 59, .7);--bg-surface-solid: #1e293b;--bg-sidebar: #111827;--border-color: rgba(255, 255, 255, .08);--border-focus: #f59e0b;--primary: #d97706;--primary-hover: #b45309;--primary-glow: rgba(217, 119, 6, .25);--secondary: #4b5563;--secondary-hover: #374151;--text-primary: #f8fafc;--text-muted: #94a3b8;--text-on-primary: #0f172a;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .3), 0 4px 6px -2px rgba(0, 0, 0, .05);--border-radius-sm: 6px;--border-radius-md: 12px;--border-radius-lg: 16px;--transition-fast: .15s ease;--transition-normal: .25s ease;--glass-backdrop: blur(12px) saturate(120%);--bg-canvas: #111827;--grid-minor: rgba(255, 255, 255, .04);--grid-major: rgba(255, 255, 255, .12);--bg-workspace: #0b0f19;--bg-container: #121824;--border-container: rgba(255, 255, 255, .1);--bg-input: rgba(15, 23, 42, .6);--bg-card: rgba(15, 23, 42, .6);--text-body: #f8fafc;--text-heading: #ffffff;--bg-board: #1a2333;--text-board-label: #fef08a;--text-obstacle-label: #fda4af}body.theme-light{--bg-app: #f1f5f9;--bg-surface: rgba(255, 255, 255, .7);--bg-surface-solid: #ffffff;--bg-sidebar: #ffffff;--border-color: rgba(15, 23, 42, .08);--border-focus: #d97706;--primary: #d97706;--primary-hover: #b45309;--primary-glow: rgba(217, 119, 6, .15);--secondary: #cbd5e1;--secondary-hover: #94a3b8;--text-primary: #0f172a;--text-muted: #64748b;--text-on-primary: #ffffff;--bg-canvas: #ffffff;--grid-minor: rgba(15, 23, 42, .12);--grid-major: rgba(15, 23, 42, .25);--bg-workspace: #cbd5e1;--bg-container: #ffffff;--border-container: rgba(15, 23, 42, .08);--bg-input: #ffffff;--bg-card: #f8fafc;--text-body: #0f172a;--text-heading: #0f172a;--bg-board: #fffbeb;--text-board-label: #78350f;--text-obstacle-label: #9f1239}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-app);color:var(--text-primary);font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden;height:100vh;width:100vw}.app-container{display:flex;flex-direction:column;height:100vh;width:100vw}.app-header{background-color:var(--bg-sidebar);border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;height:64px}.logo{display:flex;align-items:center;gap:.75rem}.logo .icon{font-size:1.5rem}.logo h1{font-family:var(--font-heading);font-size:1.25rem;font-weight:700;letter-spacing:-.025em;background:linear-gradient(135deg,#fbbf24,#d97706);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.main-layout{display:flex;flex:1;height:calc(100vh - 64px);overflow:hidden}.sidebar-left,.sidebar-right{width:320px;background-color:var(--bg-sidebar);border-color:var(--border-color);border-style:solid;padding:1.5rem;overflow-y:auto;display:flex;flex-direction:column;gap:1.5rem;z-index:10}.sidebar-left{border-right-width:1px}.sidebar-right{border-left-width:1px}.control-section{background:var(--bg-surface);-webkit-backdrop-filter:var(--glass-backdrop);backdrop-filter:var(--glass-backdrop);border:1px solid var(--border-color);border-radius:var(--border-radius-md);padding:1.25rem;box-shadow:var(--shadow-md);transition:border-color var(--transition-normal)}.control-section:hover{border-color:#f59e0b33}.control-section h2{font-family:var(--font-heading);font-size:1rem;font-weight:600;margin-bottom:1rem;color:var(--text-primary);border-bottom:1px solid var(--border-color);padding-bottom:.5rem}.input-group{margin-bottom:.75rem}.input-group:last-child{margin-bottom:0}.input-group label{display:block;font-size:.75rem;font-weight:600;color:var(--text-muted);margin-bottom:.35rem;text-transform:uppercase;letter-spacing:.05em}.input-group input,.input-group select{width:100%;background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);color:var(--text-primary);padding:.6rem .75rem;font-family:var(--font-body);font-size:.875rem;transition:all var(--transition-fast)}.input-group input:focus,.input-group select:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px #f59e0b26}.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-body);font-size:.875rem;font-weight:600;padding:.6rem 1.25rem;border-radius:var(--border-radius-sm);border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast);gap:.5rem}.btn-block{display:flex;width:100%}.btn-primary{background-color:var(--primary);color:var(--text-on-primary)}.btn-primary:hover{background-color:var(--primary-hover);box-shadow:0 0 12px var(--primary-glow)}.btn-secondary{background-color:var(--secondary);border-color:var(--border-color);color:var(--text-primary)}.btn-secondary:hover{background-color:var(--secondary-hover);border-color:#fff3}.tool-buttons{display:flex;flex-direction:column;gap:.75rem}.canvas-workspace{flex:1;background-color:var(--bg-workspace);display:flex;align-items:center;justify-content:center;padding:2rem;position:relative;overflow:auto}.canvas-container{background-color:var(--bg-container);border:2px solid var(--border-container);border-radius:var(--border-radius-md);box-shadow:var(--shadow-lg),0 0 40px #00000080;position:relative;transition:all var(--transition-normal);aspect-ratio:auto;overflow:visible}.svg-canvas{width:100%;height:100%;display:block;background-color:var(--bg-canvas);border-radius:calc(var(--border-radius-md) - 2px);overflow:visible}.grid-line-minor{stroke:var(--grid-minor);stroke-width:1}.grid-line-major{stroke:var(--grid-major);stroke-width:1.5}.empty-state{color:var(--text-muted);font-size:.875rem;font-style:italic;text-align:center;padding:1.5rem 0}.bom-output{display:flex;flex-direction:column;gap:1rem}.canvas-handle{fill:transparent;pointer-events:all;transition:fill var(--transition-fast),r var(--transition-fast)}.canvas-handle-width{cursor:ew-resize}.canvas-handle-height{cursor:ns-resize}.canvas-handle-corner{cursor:nesw-resize;fill:#d97706;stroke:var(--bg-app);stroke-width:3}.canvas-handle:hover{fill:#d9770640}.canvas-handle-corner:hover{fill:#fbbf24}.canvas-box-group{cursor:move}.canvas-box-board{fill:var(--bg-board);stroke:#d97706;stroke-width:1.5;transition:all var(--transition-fast)}.canvas-box-group:hover .canvas-box-board{stroke:#fbbf24}.canvas-box-label{font-family:var(--font-heading);font-size:14px;font-weight:700;fill:var(--text-board-label);text-anchor:middle;dominant-baseline:middle;pointer-events:none}.canvas-box-dims{font-family:var(--font-body);font-size:11px;font-weight:500;fill:#d97706;text-anchor:middle;dominant-baseline:middle;pointer-events:none}.canvas-handle-box-edge{fill:transparent;pointer-events:all;transition:fill var(--transition-fast)}.canvas-handle-box-edge:hover{fill:#d9770640}.canvas-handle-box-left,.canvas-handle-box-right{cursor:ew-resize}.canvas-handle-box-top,.canvas-handle-box-bottom{cursor:ns-resize}.canvas-handle-box-corner-node{fill:#d97706;stroke:var(--bg-app);stroke-width:2;pointer-events:all;transition:transform var(--transition-fast),fill var(--transition-fast)}.canvas-handle-box-corner-node:hover{fill:#fbbf24;transform:scale(1.3)}.canvas-handle-box-tl,.canvas-handle-box-br{cursor:nwse-resize}.canvas-handle-box-tr,.canvas-handle-box-bl{cursor:nesw-resize}.canvas-obstacle{cursor:move;transition:opacity var(--transition-fast)}.canvas-obstacle-border{fill:none;stroke:#f43f5e;stroke-width:2.5;stroke-dasharray:4,4;pointer-events:none}.canvas-obstacle-label{font-family:var(--font-heading);font-size:14px;font-weight:700;fill:var(--text-obstacle-label);text-anchor:middle;dominant-baseline:middle;pointer-events:none}.canvas-obstacle-dims{font-family:var(--font-body);font-size:11px;font-weight:500;fill:#f43f5e;text-anchor:middle;dominant-baseline:middle;pointer-events:none}.canvas-divider{transition:fill var(--transition-fast),stroke var(--transition-fast)}.canvas-divider:hover{fill:#d97706!important;stroke:#fbbf24;stroke-width:1.5}.canvas-divider-h{cursor:ns-resize}.canvas-divider-v{cursor:ew-resize}.canvas-selection-box{fill:none;stroke:#fbbf24;stroke-width:2;stroke-dasharray:6,3;pointer-events:none;animation:select-pulse 2s infinite linear}@keyframes select-pulse{0%{stroke-dashoffset:0}to{stroke-dashoffset:18}}.canvas-handle-obstacle-resize{fill:#f43f5e;stroke:var(--bg-app);stroke-width:2;cursor:nesw-resize;pointer-events:all;transition:transform var(--transition-fast),fill var(--transition-fast)}.canvas-handle-obstacle-resize:hover{fill:#ffe4e6;transform:scale(1.3)}.btn-delete{background-color:#991b1b!important;color:#fff!important}.btn-delete:hover{background-color:#b91c1c!important;box-shadow:0 0 12px #b91c1c66!important}@media (max-width: 1024px){.main-layout{flex-direction:column;overflow-y:auto}.sidebar-left,.sidebar-right{width:100%;height:auto;border-width:0;border-bottom:1px solid var(--border-color)}.canvas-workspace{min-height:500px;height:60vh}}.three-container canvas{display:block;width:100%!important;height:100%!important}.fab{position:absolute;bottom:2rem;right:2rem;width:56px;height:56px;border-radius:50%;background-color:var(--primary);border:none;color:var(--text-on-primary);font-size:1.75rem;cursor:pointer;box-shadow:0 10px 25px -5px #0006,var(--shadow-lg);display:flex;align-items:center;justify-content:center;transition:all var(--transition-normal);z-index:10}.fab:hover{background-color:var(--primary-hover);transform:scale(1.1) rotate(90deg);box-shadow:0 12px 30px -5px var(--primary-glow),var(--shadow-lg)}body.theme-light .fab{color:#fff;box-shadow:0 10px 25px -5px #0f172a33,var(--shadow-lg)}body.theme-light .fab:hover{box-shadow:0 12px 30px -5px #d9770666,var(--shadow-lg)}.fab-secondary{bottom:6.5rem;background-color:var(--bg-surface-solid);color:var(--text-primary);border:1px solid var(--border-color);font-size:1.5rem}.fab-secondary:hover{background-color:var(--bg-surface-solid);border-color:var(--border-focus);color:var(--primary);transform:scale(1.1) rotate(45deg)}body.theme-light .fab-secondary{background-color:#fff;color:var(--text-primary);border-color:var(--border-color)}.modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:#0f172a99;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:999;opacity:0;animation:fadeIn .25s forwards ease}@keyframes fadeIn{to{opacity:1}}.modal-card{background:var(--bg-surface-solid);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);width:90%;max-width:500px;max-height:85vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg),0 20px 40px #0006;overflow:hidden;transform:translateY(20px);animation:slideUp .25s forwards ease}@keyframes slideUp{to{transform:translateY(0)}}.modal-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.modal-header h2{font-family:var(--font-heading);font-size:1.25rem;font-weight:700;color:var(--text-primary)}.modal-close-btn{background:none;border:none;font-size:1.5rem;color:var(--text-muted);cursor:pointer;transition:color var(--transition-fast)}.modal-close-btn:hover{color:var(--text-primary)}.modal-body{padding:1.5rem;overflow-y:auto;flex:1}.modal-subtitle{font-size:.875rem;color:var(--text-muted);margin-bottom:1.25rem}.creation-options-grid{display:flex;flex-direction:column;gap:1rem}.creation-option-btn{background:#ffffff05;border:1px solid var(--border-color);border-radius:var(--border-radius-md);padding:1rem 1.25rem;display:flex;align-items:center;gap:1rem;text-align:left;cursor:pointer;transition:all var(--transition-fast);color:var(--text-primary);width:100%}.creation-option-btn:hover{background:#d9770614;border-color:var(--border-focus);transform:translateY(-2px)}body.theme-light .creation-option-btn{background:#0f172a05}body.theme-light .creation-option-btn:hover{background:#d977060a}.option-icon{font-size:2rem}.option-details h3{font-family:var(--font-heading);font-size:1rem;font-weight:600;margin-bottom:.25rem}.option-details p{font-size:.75rem;color:var(--text-muted)}.canvas-gear-button circle{transition:fill var(--transition-fast),stroke-width var(--transition-fast),transform var(--transition-fast)}.canvas-gear-button:hover circle{fill:#fef3c7;stroke-width:2.5}body.theme-light .canvas-gear-button:hover circle{fill:#fffbeb}.collision-toast{position:fixed;bottom:5rem;left:50%;transform:translate(-50%) translateY(8px);background:#d97706f2;color:#1c1917;font-family:var(--font-body);font-size:.8rem;font-weight:600;padding:.55rem 1.25rem;border-radius:999px;box-shadow:0 4px 16px #00000059;z-index:9999;pointer-events:none;animation:toastIn .2s ease forwards}@keyframes toastIn{to{transform:translate(-50%) translateY(0);opacity:1}0%{opacity:0;transform:translate(-50%) translateY(12px)}}body.theme-light .collision-toast{background:#fbbf24f7;color:#1c1917}.info-toast,body.theme-light .info-toast{background:#10b981f2;color:#f0fdf4}@media (max-width: 600px){.modal-overlay{align-items:flex-end}.modal-card{width:100vw!important;max-width:100vw!important;height:100vh!important;border-radius:0!important;display:flex!important;flex-direction:column!important}.modal-body{flex:1!important;display:flex!important;flex-direction:column!important;justify-content:flex-start!important;padding:2rem 1.5rem!important;overflow-y:auto!important}.modal-body .input-group input,.modal-body .input-group select{padding:.8rem 1rem!important;font-size:1rem!important}}.ctrl-drag-mode .canvas-box-group,.ctrl-drag-mode .canvas-box,.ctrl-drag-mode .canvas-obstacle{cursor:copy!important}