:root{--bg-app: #f1f5f9;--bg-panel: #ffffff;--border-color: #e2e8f0;--text-primary: #0f172a;--text-secondary: #64748b;--primary: #2563eb;--primary-hover: #1d4ed8;--primary-light: #eff6ff;--danger: #ef4444;--success: #10b981;--radius: 8px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -2px rgb(0 0 0 / .05);--font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}body{margin:0;font-family:var(--font-sans);background-color:var(--bg-app);color:var(--text-primary);-webkit-font-smoothing:antialiased;line-height:1.5}*,*:before,*:after{box-sizing:border-box}a{text-decoration:none;color:inherit;transition:color .2s}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600}p{margin:0}.app-root{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-header{height:60px;background:var(--bg-panel);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:50;box-shadow:var(--shadow-sm)}.editor-layout{display:grid;grid-template-columns:260px 1fr 300px;height:calc(100vh - 60px);background:var(--bg-app)}.editor-sidebar{background:var(--bg-panel);border-right:1px solid var(--border-color);display:flex;flex-direction:column;overflow-y:auto}.editor-sidebar-right{background:var(--bg-panel);border-left:1px solid var(--border-color);overflow-y:auto;display:flex;flex-direction:column}.editor-canvas-area{padding:40px;overflow-y:auto;display:flex;justify-content:center;background-image:radial-gradient(#cbd5e1 1px,transparent 1px);background-size:24px 24px}.canvas-frame{width:100%;max-width:1100px;background:#fff;min-height:800px;height:fit-content;box-shadow:var(--shadow-lg);border-radius:var(--radius);transition:all .3s ease;position:relative;overflow:visible}.canvas-block{position:relative;transition:border-color .2s ease,box-shadow .2s ease;border:2px solid transparent;box-sizing:border-box}.canvas-block:hover{border-color:#2563eb4d;z-index:20}.canvas-block.selected{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary);z-index:30}.block-hover-actions{position:absolute;top:-34px;right:0;background:var(--text-primary);color:#fff;border-radius:4px;display:flex;gap:4px;padding:4px 6px;opacity:0;transform:translateY(5px);transition:all .2s cubic-bezier(.16,1,.3,1);pointer-events:none;z-index:100;box-shadow:var(--shadow-md)}.canvas-block:hover .block-hover-actions,.canvas-block.selected .block-hover-actions{opacity:1;transform:translateY(0);pointer-events:auto}.action-btn{background:transparent;border:none;color:#f8fafc;padding:4px;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center}.action-btn:hover{background:#fff3}.action-btn.delete:hover{background:var(--danger)}.resizer-handle-right{position:absolute;right:-6px!important;top:50%;transform:translateY(-50%);width:14px!important;height:40px!important;background:transparent;cursor:col-resize;z-index:60;display:flex;align-items:center;justify-content:center;pointer-events:auto}.resizer-handle-right:after{content:"";width:4px;height:24px;background:#cbd5e1;border-radius:99px;opacity:0;transition:all .2s;box-shadow:0 1px 3px #0000001a;border:1px solid white}.canvas-block:hover .resizer-handle-right:after,.canvas-block.selected .resizer-handle-right:after{opacity:1}.resizer-handle-right:hover:after,.resizer-handle-right:active:after{background:var(--primary);height:32px}.resizer-handle-bottom{position:absolute;bottom:-6px!important;left:50%;transform:translate(-50%);width:40px!important;height:12px!important;cursor:row-resize;z-index:60;display:flex;align-items:center;justify-content:center}.resizer-handle-bottom:after{content:"";width:24px;height:4px;background:#cbd5e1;border-radius:99px;opacity:0;transition:opacity .2s;border:1px solid white}.canvas-block.selected .resizer-handle-bottom:after{opacity:1}.resizer-handle-bottom:hover:after{background:var(--primary)}.panel-section{padding:20px;border-bottom:1px solid var(--border-color)}.panel-title{font-size:12px;font-weight:700;text-transform:uppercase;color:var(--text-secondary);margin-bottom:12px;letter-spacing:.05em}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;border:1px solid transparent}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-ghost{background:transparent;color:var(--text-primary);border:1px solid var(--border-color)}.btn-ghost:hover{background:#f8fafc}.btn-sm{padding:6px 12px;font-size:13px}.input-group{margin-bottom:16px}.label{display:block;font-size:13px;font-weight:500;margin-bottom:6px;color:var(--text-secondary)}.input,.select,textarea{width:100%;padding:8px 12px;border-radius:6px;border:1px solid var(--border-color);font-size:14px;background:#fff;font-family:inherit}.input:focus,.select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.palette-item{display:flex;align-items:center;gap:12px;padding:12px;background:#fff;border:1px solid var(--border-color);border-radius:8px;margin-bottom:8px;cursor:pointer;transition:all .2s;font-size:14px;font-weight:500;color:var(--text-primary);width:100%}.palette-item:hover{border-color:var(--primary);background:var(--primary-light);color:var(--primary);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.pills{display:inline-flex;background:#e2e8f0;padding:4px;border-radius:99px;gap:4px}.pill{padding:6px 16px;border-radius:99px;border:none;font-size:13px;font-weight:500;cursor:pointer;background:transparent;color:var(--text-secondary)}.pill-active{background:#fff;color:var(--text-primary);box-shadow:0 1px 2px #0000000d}@media (max-width: 768px){.editor-layout{grid-template-columns:1fr}.editor-sidebar,.editor-sidebar-right,.hide-mobile{display:none}}