:root{--bg-primary: #0d1117;--bg-secondary: #111827;--bg-tertiary: #1e2533;--bg-elevated: #263040;--bg-hover: #2d3a4d;--border-primary: rgba(148, 163, 184, .1);--border-secondary: rgba(148, 163, 184, .18);--border-subtle: rgba(148, 163, 184, .06);--border-focus: #4f86f4;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--text-dimmed: #3d4d63;--accent-primary: #4f86f4;--accent-hover: #3b72e0;--accent-green: #22c55e;--accent-red: #ef4444;--accent-yellow: #f59e0b;--accent-purple: #8b5cf6;--accent-cyan: #06b6d4;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-pill: 9999px;--transition: .14s ease;--shadow-soft: 0 4px 24px rgba(0, 0, 0, .3);--shadow-card: 0 2px 8px rgba(0, 0, 0, .2);--sidebar-width: 312px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--bg-hover)}.app-container{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-header{display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:56px;background:var(--bg-primary);border-bottom:1px solid var(--border-primary);flex-shrink:0}.brand-name{font-size:13px;font-weight:600;color:var(--text-secondary);letter-spacing:.01em}.header-actions{display:flex;align-items:center;gap:8px;min-width:0;overflow:hidden}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 14px;height:32px;font-size:13px;font-weight:500;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all var(--transition);white-space:nowrap;font-family:inherit}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary)}.btn-primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);border-color:var(--border-secondary)}.btn-secondary:hover:not(:disabled){background:var(--bg-elevated);color:var(--text-primary);border-color:var(--border-secondary)}.btn-secondary.active{background:var(--bg-elevated);color:var(--accent-primary);border-color:var(--accent-primary)}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-ghost:hover:not(:disabled){background:var(--bg-tertiary);color:var(--text-secondary)}.btn-full{width:100%}.app-body{display:flex;flex:1;overflow:hidden}.sidebar{width:var(--sidebar-width);display:flex;flex-direction:column;background:var(--bg-secondary);border-right:1px solid var(--border-primary);flex-shrink:0}.sidebar-scroll{flex:1;overflow-y:auto;overflow-x:hidden}.sidebar-section{padding:16px;border-bottom:1px solid var(--border-primary)}.section-header{display:flex;align-items:center;gap:8px;margin-bottom:10px}.section-header.clickable{cursor:pointer;padding:4px 6px;margin:-4px -6px 6px;border-radius:var(--radius-sm);transition:background var(--transition)}.section-header.clickable:hover{background:var(--bg-tertiary)}.section-title{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;flex:1}.section-chevron{color:var(--text-muted);transition:transform var(--transition);display:flex}.section-chevron.open{transform:rotate(180deg)}.module-selector{flex-shrink:0}.module-dropdown-wrapper{position:relative;margin-bottom:10px}.module-dropdown{width:100%;height:38px;padding:0 32px 0 12px;font-size:13px;font-weight:500;color:var(--text-primary);background:var(--bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);cursor:pointer;appearance:none;transition:all var(--transition);font-family:inherit;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}.module-dropdown:hover{border-color:var(--border-secondary);background-color:var(--bg-elevated)}.module-dropdown:focus{outline:none;border-color:var(--accent-primary)}.module-path-details{margin-top:6px}.module-path-summary{font-size:11px;font-weight:600;color:var(--text-muted);cursor:pointer;padding:4px 0;transition:color var(--transition);list-style:none}.module-path-summary::-webkit-details-marker{display:none}.module-path-summary:before{content:"▸ "}.module-path-details[open] .module-path-summary:before{content:"▾ "}.module-path-summary:hover{color:var(--text-secondary)}.module-path{display:flex;flex-direction:column;gap:6px;background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-sm);padding:10px 12px;margin-top:6px}.path-value{font-family:JetBrains Mono,Fira Code,SF Mono,Consolas,monospace;font-size:12px;font-weight:500;color:#7dd3fc;word-break:break-all}.component-grid{display:grid;grid-template-columns:1fr;gap:4px}.component-item{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-md);cursor:grab;transition:background var(--transition),border-color var(--transition);position:relative;-webkit-user-select:none;user-select:none;touch-action:manipulation}.component-item:hover{border-color:var(--border-secondary);background:var(--bg-elevated)}.component-item:active{cursor:grabbing}.component-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-size:13px;flex-shrink:0;background:#94a3b814}.component-item-text{display:flex;flex-direction:column;gap:1px;flex:1;min-width:0}.component-label{font-size:13px;font-weight:500;color:var(--text-primary)}.component-desc{font-size:11px;color:var(--text-muted)}.preset-grid{display:flex;flex-wrap:wrap;gap:6px}.preset-btn{padding:6px 12px;font-size:12px;font-weight:500;color:var(--text-secondary);background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);font-family:inherit}.preset-btn:hover{color:var(--text-primary);border-color:var(--border-secondary);background:var(--bg-elevated)}.placeholder-hint{font-size:11px;color:var(--text-muted);margin-bottom:8px;line-height:1.4}.placeholder-grid{display:flex;flex-wrap:wrap;gap:5px}.placeholder-btn{padding:4px 8px;font-family:JetBrains Mono,Fira Code,SF Mono,Consolas,monospace;font-size:10px;color:var(--text-secondary);background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}.placeholder-btn:hover{color:var(--text-primary);border-color:var(--border-secondary)}.placeholder-btn.copied{color:var(--accent-green);border-color:var(--accent-green);font-family:Inter,-apple-system,sans-serif;font-weight:600;font-size:10px}.sidebar-footer{padding:12px 16px 16px;border-top:1px solid var(--border-primary);flex-shrink:0;display:flex;flex-direction:column;gap:6px}.canvas{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-primary);min-width:0}.canvas-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border-primary);background:var(--bg-primary);flex-shrink:0}.canvas-title h2{font-size:15px;font-weight:600;color:var(--text-primary);margin-bottom:1px}.canvas-subtitle{font-size:12px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:400px}.canvas-title{min-width:0;flex:1}.canvas-badge{display:flex;align-items:center}.badge-category{padding:4px 10px;font-size:11px;font-weight:500;color:var(--text-muted);background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-pill)}.canvas-area{flex:1;margin:16px;border:1px solid var(--border-primary);border-radius:var(--radius-lg);overflow-y:auto;transition:border-color var(--transition);background:var(--bg-secondary)}.canvas-area.drop-active{border-color:var(--accent-primary);background:#4f86f40a}.canvas-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px}.empty-icon{width:64px;height:64px;display:flex;align-items:center;justify-content:center;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);margin-bottom:16px;color:var(--text-dimmed)}.canvas-empty h3{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:6px}.canvas-empty p{font-size:13px;color:var(--text-secondary);max-width:320px;line-height:1.6}.empty-steps{display:flex;flex-direction:column;gap:8px;margin-top:20px;text-align:left}.empty-step{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-secondary)}.step-num{width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:var(--accent-primary);border-radius:50%;font-size:11px;font-weight:600;color:#fff;flex-shrink:0}.mobile-start-btn{display:none;margin-top:20px;height:40px;padding:0 24px}.canvas-components{padding:16px;display:flex;flex-direction:column;gap:8px}.canvas-actions{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--bg-primary);border-top:1px solid var(--border-primary);flex-shrink:0;gap:8px}.canvas-actions-left{display:flex;align-items:center;gap:6px}.canvas-actions-info{font-size:12px;font-weight:500;color:var(--text-muted)}.btn-icon-sm{display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:0 12px;height:30px;font-size:12px;font-weight:500;color:var(--text-secondary);background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);font-family:inherit}.btn-icon-sm:hover{background:var(--bg-elevated);border-color:var(--border-secondary);color:var(--text-primary)}.btn-copy{display:inline-flex;align-items:center;gap:7px;padding:0 18px;height:34px;font-size:13px;font-weight:500;background:var(--accent-primary);color:#fff;border:1px solid var(--accent-primary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);font-family:inherit}.btn-copy:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-copy:disabled{opacity:.35;cursor:not-allowed}.btn-copy.copied{background:var(--accent-green);border-color:var(--accent-green)}.card-wrapper{display:flex;flex-direction:column;gap:8px;transition:opacity var(--transition)}.card-wrapper.dragging{opacity:.4}.drop-indicator{height:2px;background:var(--accent-primary);border-radius:1px;margin:-4px 4px}.card{background:var(--bg-secondary);border:1px solid var(--border-primary);border-left:3px solid var(--border-primary);border-radius:var(--radius-md);overflow:hidden;transition:border-color var(--transition)}.card:hover{border-color:var(--border-secondary)}.card.drop-active{border-color:var(--accent-primary)}.card-header{display:flex;align-items:center;gap:8px;padding:10px 12px;cursor:pointer;transition:background var(--transition)}.card-header:hover{background:#94a3b80a}.card-drag-handle{width:24px;height:24px;display:flex;align-items:center;justify-content:center;color:var(--text-dimmed);cursor:grab;flex-shrink:0;opacity:.4;border-radius:var(--radius-sm);transition:opacity var(--transition),color var(--transition);touch-action:none}.card-header:hover .card-drag-handle{opacity:1}.card-drag-handle:hover{color:var(--text-secondary);background:var(--bg-tertiary)}.card-drag-handle:active{cursor:grabbing}.card-chevron{width:20px;height:20px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:transform var(--transition);flex-shrink:0}.card-chevron.open{transform:rotate(90deg)}.card-type-badge{display:flex;align-items:center;gap:8px;flex:1}.card-icon{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-size:11px;flex-shrink:0}.card-title{flex:1;font-size:13px;font-weight:500;color:var(--text-primary)}.card-delete{width:26px;height:26px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);color:var(--text-dimmed);cursor:pointer;transition:all var(--transition);opacity:0;flex-shrink:0}.card-header:hover .card-delete{opacity:1}.card-delete:hover{background:#ef44441a;border-color:#ef44444d;color:var(--accent-red)}.card-body{padding:14px;background:var(--bg-primary);border-top:1px solid var(--border-primary)}.card-children{margin-top:12px;padding:12px;border:1px dashed var(--border-secondary);border-radius:var(--radius-md);min-height:52px;transition:all var(--transition);background:var(--bg-secondary)}.card-children.drop-active{border-color:var(--accent-primary);border-style:solid;background:#4f86f40a}.children-empty{display:flex;align-items:center;justify-content:center;height:28px;font-size:12px;color:var(--text-muted)}.children-list{display:flex;flex-direction:column;gap:6px}.editor-fields{display:flex;flex-direction:column;gap:14px}.editor-row{display:flex;gap:16px}.field{display:flex;flex-direction:column;gap:5px}.field-label{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.input,.textarea,.select{width:100%;font-size:13px;color:var(--text-primary);background:var(--bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-sm);transition:border-color var(--transition);font-family:inherit}.input{height:36px;padding:0 12px}.textarea{padding:10px 12px;resize:vertical;min-height:72px;font-family:JetBrains Mono,Fira Code,SF Mono,Consolas,monospace;font-size:12px;line-height:1.6;overflow:hidden}.textarea::-webkit-resizer{display:none}.textarea-wrapper{position:relative;display:flex;flex-direction:column}.textarea-wrapper .textarea{padding-bottom:16px}.textarea-wrapper:after{content:"";position:absolute;right:4px;bottom:4px;width:10px;height:10px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'%3E%3Cpath d='M10 2L2 10' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round'/%3E%3Cpath d='M10 6L6 10' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");pointer-events:none}.input:focus,.textarea:focus,.select:focus{outline:none;border-color:var(--accent-primary);background:var(--bg-elevated)}.input::placeholder,.textarea::placeholder{color:var(--text-dimmed)}.input.mono{font-family:JetBrains Mono,Fira Code,SF Mono,Consolas,monospace;font-size:12px}.select-wrapper{position:relative}.select{height:36px;padding:0 28px 0 12px;appearance:none;cursor:pointer}.select-icon{position:absolute;right:9px;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none}.color-input{display:flex;gap:8px}.color-preview{position:relative;width:36px;height:36px;flex-shrink:0}.color-preview input[type=color]{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}.color-swatch{width:100%;height:100%;border-radius:var(--radius-sm);border:1px solid var(--border-secondary)}.toggle{display:inline-flex;align-items:center;gap:8px;cursor:pointer}.toggle-track{position:relative;width:38px;height:22px;background:var(--bg-elevated);border:1px solid var(--border-secondary);border-radius:11px;cursor:pointer;transition:all var(--transition)}.toggle-track.checked{background:var(--accent-primary);border-color:var(--accent-primary)}.toggle-thumb{position:absolute;top:2px;left:2px;width:14px;height:14px;background:var(--text-muted);border-radius:50%;transition:all var(--transition)}.toggle-track.checked .toggle-thumb{left:18px;background:#fff}.toggle-label{font-size:13px;color:var(--text-primary)}.gallery-editor{display:flex;flex-direction:column;gap:8px}.gallery-item{background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-sm);padding:10px;display:flex;flex-direction:column;gap:6px}.gallery-item-header{display:flex;justify-content:space-between;align-items:center;font-size:11px;font-weight:600;color:var(--text-secondary)}.gallery-remove{padding:3px 8px;font-size:10px;font-weight:500;color:var(--text-muted);background:transparent;border:1px solid var(--border-primary);border-radius:var(--radius-pill);cursor:pointer;transition:all var(--transition);font-family:inherit}.gallery-remove:hover{color:var(--accent-red);border-color:#ef444466}.gallery-add{width:100%;height:36px;font-size:12px;font-weight:500;color:var(--text-muted);background:transparent;border:1px dashed var(--border-secondary);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);font-family:inherit}.gallery-add:hover{color:var(--text-secondary);border-color:var(--border-secondary);background:var(--bg-tertiary)}.action-row-editor{display:flex;flex-direction:column;gap:10px}.action-row-header{display:flex;align-items:center;justify-content:space-between}.action-row-count{font-size:11px;font-weight:600;color:var(--text-secondary)}.action-row-add{display:inline-flex;align-items:center;gap:4px;padding:5px 12px;font-size:11px;font-weight:500;color:var(--text-secondary);background:var(--bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);font-family:inherit}.action-row-add:hover{background:var(--bg-elevated);color:var(--text-primary)}.action-row-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:20px;background:var(--bg-tertiary);border-radius:var(--radius-md);border:1px dashed var(--border-secondary)}.action-row-empty p{font-size:12px;color:var(--text-muted);margin:0}.action-row-buttons{display:flex;flex-direction:column;gap:6px}.inline-button-editor{background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-md);overflow:hidden}.inline-button-preview{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--bg-elevated);border-bottom:1px solid var(--border-primary)}.inline-button-number{width:18px;height:18px;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:600;color:#fff;background:var(--accent-primary);border-radius:50%}.inline-button-sample{flex:1;display:inline-flex;align-items:center;gap:4px;padding:4px 10px;font-size:12px;font-weight:500;color:#fff;background:#4e5058;border-radius:4px;max-width:fit-content}.inline-button-sample svg{opacity:.7}.inline-button-remove{display:flex;align-items:center;gap:4px;padding:4px 10px;font-size:11px;font-weight:500;color:var(--text-muted);background:transparent;border:1px solid var(--border-primary);border-radius:var(--radius-pill);cursor:pointer;transition:all var(--transition);margin-left:auto;font-family:inherit}.inline-button-remove:hover{color:var(--accent-red);border-color:#ef444466}.inline-button-fields{display:flex;gap:8px;padding:10px}.inline-field{flex:1;display:flex;flex-direction:column;gap:4px}.inline-field.small{flex:0 0 72px}.inline-field label{font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.inline-field input{width:100%;height:30px;padding:0 10px;font-size:12px;color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--border-secondary);border-radius:var(--radius-sm);transition:all var(--transition);font-family:inherit}.inline-field input:focus{outline:none;border-color:var(--accent-primary)}.inline-field input.mono{font-family:JetBrains Mono,Fira Code,SF Mono,Consolas,monospace;font-size:11px}.inline-field input::placeholder{color:var(--text-dimmed)}.preview-resize-handle{width:5px;cursor:col-resize;background:transparent;flex-shrink:0;position:relative;z-index:10;margin-left:-2px;margin-right:-3px}.preview-resize-handle:after{content:"";position:absolute;top:0;bottom:0;left:2px;width:1px;background:var(--border-primary);transition:background .12s,width .12s}.preview-resize-handle:hover:after{width:2px;left:1px;background:var(--accent-primary);border-radius:1px}.preview-panel{display:flex;flex-direction:column;background:#313338;flex-shrink:0;overflow:hidden;min-width:280px;max-width:700px}.preview-panel-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:#2b2d31;border-bottom:1px solid #1e1f22;flex-shrink:0}.preview-panel-title{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:#b5bac1}.preview-panel-title svg{color:#80848e}.preview-panel-channel{display:flex;align-items:center;gap:8px;padding:9px 14px;background:#2b2d31;border-bottom:1px solid #232428;flex-shrink:0}.preview-panel-channel svg{color:#80848e;flex-shrink:0}.preview-panel-channel span{font-size:15px;font-weight:600;color:#f2f3f5}.preview-panel-body{flex:1;overflow-y:auto;padding:16px;background:#313338}.preview-panel-body::-webkit-scrollbar{width:6px}.preview-panel-body::-webkit-scrollbar-track{background:#2b2d31}.preview-panel-body::-webkit-scrollbar-thumb{background:#1a1b1e;border-radius:3px}.preview-panel-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px}.preview-panel-empty svg{color:#4e5058;margin-bottom:12px}.preview-panel-empty p{font-size:13px;color:#80848e;max-width:200px;line-height:1.5}.preview-message{display:flex;gap:16px;padding:2px 0}.preview-message-avatar{width:40px;height:40px;border-radius:50%;flex-shrink:0;margin-top:2px;background:#5865f2;display:flex;align-items:center;justify-content:center}.preview-message-avatar img{width:100%;height:100%;border-radius:50%}.preview-message-content{flex:1;min-width:0}.preview-message-header{display:flex;align-items:center;gap:6px;line-height:1.375;margin-bottom:2px}.preview-message-name{font-size:15px;font-weight:500;color:#f2f3f5}.preview-message-bot-tag{display:inline-flex;align-items:center;gap:1px;padding:0 4px;height:15px;font-size:9px;font-weight:500;color:#fff;background:#5865f2;border-radius:3px;text-transform:uppercase;letter-spacing:.25px}.preview-message-bot-tag svg{width:11px;height:11px}.preview-message-time{font-size:11px;font-weight:500;color:#949ba4}.preview-message-body{margin-top:2px}.preview-container{background:#2b2d31;border-radius:4px;padding:12px 16px;border-left:4px solid transparent;margin:4px 0;max-width:min(520px,100%)}.preview-section{display:flex;gap:16px;padding:2px 0}.preview-section-text{flex:1;min-width:0}.preview-thumbnail{width:80px;height:80px;border-radius:4px;background:#1e1f22;flex-shrink:0;display:flex;align-items:center;justify-content:center;overflow:hidden}.preview-thumbnail img{width:100%;height:100%;object-fit:cover}.preview-placeholder{font-size:10px;color:#949ba4;text-align:center;padding:4px;word-break:break-all}.preview-text{padding:2px 0}.preview-separator{padding:4px 0}.preview-separator.large{padding:8px 0}.preview-separator hr{border:none;border-top:1px solid #3f4147;margin:0}.preview-gallery{display:flex;gap:4px;flex-wrap:wrap;padding:4px 0}.preview-gallery-item{width:100%;max-width:300px;aspect-ratio:3 / 2;border-radius:4px;background:#1e1f22;display:flex;align-items:center;justify-content:center;overflow:hidden}.preview-gallery-item img{width:100%;height:100%;object-fit:cover}.preview-file{display:flex;align-items:center;gap:8px;padding:10px;background:#2b2d31;border-radius:4px;border:1px solid #232428;margin:4px 0;max-width:400px}.file-icon{width:30px;height:40px;display:flex;align-items:center;justify-content:center;color:#e44}.file-name{font-size:16px;font-weight:500;color:#00aff4;text-decoration:none}.file-name:hover{text-decoration:underline}.preview-action-row{display:flex;gap:8px;flex-wrap:wrap;padding:4px 0}.preview-button{display:inline-flex;align-items:center;gap:8px;padding:2px 16px;height:32px;font-size:14px;font-weight:500;color:#fff;background:#4e5058;border:none;border-radius:3px;cursor:pointer;transition:background .14s ease;font-family:inherit}.preview-button:hover{background:#6d6f78}.preview-button svg{opacity:.8}.md-content{font-size:16px;color:#dbdee1;line-height:1.375;word-wrap:break-word}.md-h1{font-size:24px;font-weight:700;color:#f2f3f5;line-height:1.25;margin:8px 0 4px}.md-h1:first-child{margin-top:0}.md-h2{font-size:20px;font-weight:700;color:#f2f3f5;line-height:1.25;margin:8px 0 4px}.md-h3{font-size:16px;font-weight:700;color:#f2f3f5;line-height:1.25;margin:8px 0 4px}.md-content strong{font-weight:700;color:#f2f3f5}.md-content em{font-style:italic}.md-quote-block{padding:2px 8px 2px 12px;border-left:4px solid #4e5058;margin:2px 0}.md-quote-line{color:#dbdee1;line-height:1.375}.md-small{font-size:12px;color:#949ba4;line-height:1.4}.md-code{font-family:Consolas,Monaco,Andale Mono,monospace;font-size:14px;background:#1e1f22;color:#dbdee1;padding:8px;border-radius:4px;border:1px solid #232428;margin:4px 0;white-space:pre-wrap;display:block}.import-input,.upload-hidden-input{display:none}.upload-screen{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 24px;overflow-y:auto}.upload-content{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:520px;width:100%;padding:32px;border:1px solid var(--border-primary);border-radius:var(--radius-xl);background:var(--bg-secondary)}.upload-icon{width:64px;height:64px;display:flex;align-items:center;justify-content:center;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);margin-bottom:20px;color:var(--text-secondary)}.upload-content h2{font-size:clamp(22px,4vw,28px);font-weight:700;color:var(--text-primary);margin-bottom:8px;letter-spacing:-.02em}.upload-content p{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:24px;max-width:400px}.upload-zone{width:100%;padding:32px 24px;border:1px dashed var(--border-secondary);border-radius:var(--radius-lg);background:var(--bg-tertiary);cursor:pointer;transition:border-color var(--transition),background var(--transition);display:flex;flex-direction:column;align-items:center;gap:10px;-webkit-tap-highlight-color:transparent}.upload-zone:hover{border-color:var(--accent-primary);background:var(--bg-elevated)}.upload-zone.drag-over{border-color:var(--accent-primary);border-style:solid;background:#4f86f40f}.upload-zone svg{color:var(--text-muted)}.upload-zone:hover svg,.upload-zone.drag-over svg{color:var(--accent-primary)}.upload-zone-text{font-size:14px;font-weight:500;color:var(--text-primary)}.upload-zone-hint{font-size:12px;color:var(--text-muted)}.upload-error{margin-top:12px;padding:10px 14px;background:#ef444414;border:1px solid rgba(239,68,68,.25);border-radius:var(--radius-sm);font-size:13px;color:var(--accent-red)}.upload-divider{display:flex;align-items:center;width:100%;margin:20px 0;gap:14px}.upload-divider:before,.upload-divider:after{content:"";flex:1;height:1px;background:var(--border-primary)}.upload-divider span{font-size:12px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.upload-scratch-btn{height:38px;padding:0 24px}.file-info-bar{display:flex;align-items:center;gap:7px;padding:5px 12px;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-md);margin-right:6px}.file-info-bar svg{color:var(--text-muted);flex-shrink:0}.file-info-name{font-size:12px;font-weight:500;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:160px}.file-info-count{font-size:11px;color:var(--text-muted)}.section-list{display:flex;flex-direction:column;gap:3px}.section-list-item{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);font-family:inherit;text-align:left;color:var(--text-secondary)}.section-list-item:hover{border-color:var(--border-secondary);background:var(--bg-elevated);color:var(--text-primary)}.section-list-item.active{border-color:var(--accent-primary);background:#4f86f414;color:var(--text-primary)}.section-list-item svg{color:var(--text-muted);flex-shrink:0}.section-list-item.active svg{color:var(--accent-primary)}.section-list-label{flex:1;font-size:12px;font-weight:500;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.section-list-count{font-size:10px;font-weight:600;color:var(--text-muted);background:var(--bg-primary);padding:2px 7px;border-radius:var(--radius-pill);flex-shrink:0}.section-list-item.active .section-list-count{color:var(--accent-primary);background:#4f86f41a}.section-list-item.is-new .section-list-label{font-style:italic}.dynamic-add-buttons{display:flex;flex-direction:column;gap:3px;padding:8px 10px 4px}.btn-add-dynamic{display:flex;align-items:center;gap:7px;width:100%;padding:7px 10px;border:1px dashed var(--border-secondary);border-radius:var(--radius-md);background:transparent;color:var(--text-muted);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--transition)}.btn-add-dynamic:hover{border-color:var(--accent-primary);color:var(--accent-primary);background:#4f86f40a}.btn-add-dynamic svg{flex-shrink:0}.btn:focus-visible,.btn-copy:focus-visible,.btn-icon-sm:focus-visible,.section-list-item:focus-visible,.upload-zone:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.mobile-tabs{display:none}@media(max-width:1200px){:root{--sidebar-width: 280px}}@media(max-width:1000px){:root{--sidebar-width: 256px}}@media(max-width:800px){.app-header{padding:0 12px;height:50px}.brand-name{font-size:12px}.desktop-only{display:none!important}.app-body{flex-direction:column;position:relative}.mobile-tabs{display:flex;background:var(--bg-secondary);border-bottom:1px solid var(--border-primary);flex-shrink:0}.mobile-tab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:10px 8px;font-size:11px;font-weight:600;color:var(--text-muted);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;transition:all var(--transition);-webkit-tap-highlight-color:transparent;font-family:inherit}.mobile-tab.active{color:var(--text-primary);border-bottom-color:var(--accent-primary)}.sidebar{width:100%;display:none;border-right:none;border-bottom:1px solid var(--border-primary);max-height:none;flex:1;overflow:hidden}.sidebar.mobile-visible{display:flex}.canvas{display:none;flex:1}.canvas.mobile-visible{display:flex}.preview-resize-handle{display:none}.preview-panel{width:100%!important;display:none;border-left:none;border-top:1px solid var(--border-primary);flex:1;min-width:0;max-width:none}.preview-panel.mobile-visible{display:flex}.canvas-header{padding:10px 14px}.canvas-title h2{font-size:14px}.canvas-subtitle{max-width:100%}.canvas-area{margin:8px;border-radius:10px}.canvas-actions{padding:8px 12px;flex-wrap:wrap}.btn-copy{height:40px;padding:0 18px}.canvas-components{padding:8px}.card-header{padding:10px;gap:8px}.card-drag-handle{opacity:.7}.card-delete{opacity:1}.card-body{padding:10px}.sidebar-section{padding:12px}.component-item{padding:10px 12px}.component-icon{width:34px;height:34px;font-size:14px}.component-label{font-size:13px}.component-desc{font-size:11px}.preset-btn{padding:8px 14px;font-size:12px}.placeholder-btn{padding:6px 8px;font-size:11px}.sidebar-footer{padding:10px 12px}.sidebar-footer .btn{height:40px;font-size:13px}.module-dropdown{height:42px;font-size:14px}.input{height:40px;font-size:14px}.textarea{font-size:13px}.select{height:40px;font-size:14px}.toggle-track{width:42px;height:24px}.toggle-track.checked .toggle-thumb{left:20px}.toggle-label{font-size:14px}.field-label{font-size:11px}.preview-panel-body{padding:12px}.inline-button-fields{flex-direction:column}.inline-field.small{flex:1}.inline-field input{height:36px;font-size:13px}.canvas-empty{padding:28px 20px}.canvas-empty h3{font-size:15px}.canvas-empty p{font-size:13px}.empty-icon{width:56px;height:56px}.mobile-start-btn{display:inline-flex}.badge-category{display:none}.gallery-add{height:40px;font-size:13px}.action-row-add{padding:7px 12px;font-size:12px}.btn-icon-sm{height:36px;font-size:13px}.file-info-bar{display:none}.upload-screen{padding:20px 14px}.upload-content h2{font-size:24px}.upload-content p{font-size:13px;margin-bottom:18px}.upload-icon{width:58px;height:58px;margin-bottom:16px}.upload-zone{padding:28px 16px}.upload-divider{margin:16px 0}.upload-scratch-btn{height:40px;padding:0 20px;font-size:14px;width:100%}.section-list-item{padding:10px 12px}.section-list-label{font-size:13px}}@media(max-width:480px){.app-header{padding:0 10px;height:46px}.mobile-tab{padding:9px 6px;font-size:10px}.preset-grid{gap:5px}.editor-row{flex-direction:column;gap:10px}.canvas-area{margin:6px}.canvas-components{padding:6px}.preview-container{padding:10px 12px}.upload-screen{padding:14px 10px;align-items:flex-start}.upload-content{padding:20px 14px;border-radius:12px}.upload-content h2{font-size:22px}.upload-content p{font-size:12px}.upload-icon{width:52px;height:52px;margin-bottom:12px}.upload-zone{padding:24px 12px}.upload-error{font-size:12px;padding:8px 12px}.section-list-item{padding:9px 10px;gap:7px}.section-list-label{font-size:12px}.canvas-actions-left{flex-wrap:wrap}}