@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Roboto+Mono:wght@400;500&display=swap";:root{--bg-main: #f4f6f8;--bg-panel: #ffffff;--border-color: #e2e8f0;--text-primary: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8;--brand-primary: #3b82f6;--brand-primary-hover: #2563eb;--accent: #f59e0b;--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);--radius-sm: 4px;--radius-md: 8px;--sidebar-width: 64px;--right-panel-width: 300px;--topbar-height: 56px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;color:var(--text-primary);background-color:var(--bg-main);overflow:hidden}.app-container{display:grid;grid-template-columns:var(--sidebar-width) 1fr var(--right-panel-width);grid-template-rows:var(--topbar-height) calc(100vh - var(--topbar-height));grid-template-areas:"topbar topbar topbar" "sidebar main rightpanel";height:100vh;width:100vw}.topbar{grid-area:topbar;background-color:var(--bg-panel);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 20px;z-index:10;box-shadow:var(--shadow-sm)}.sidebar{grid-area:sidebar;background-color:var(--bg-panel);border-right:1px solid var(--border-color);display:flex;flex-direction:column;align-items:center;padding:12px 0;gap:8px;z-index:5}.main-content{grid-area:main;background-color:var(--bg-main);position:relative;overflow:hidden;display:flex;justify-content:center;align-items:center}.rightpanel{grid-area:rightpanel;background-color:var(--bg-panel);border-left:1px solid var(--border-color);padding:16px;overflow-y:auto;z-index:5}.logo{font-weight:600;font-size:1.1rem;display:flex;align-items:center;gap:8px;color:var(--brand-primary)}.btn-group{display:flex;gap:8px}.btn{background-color:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-primary);padding:6px 12px;border-radius:var(--radius-sm);font-size:.85rem;font-family:Inter,sans-serif;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .2s ease}.btn:hover{background-color:var(--bg-main);border-color:#cbd5e1}.btn.primary{background-color:var(--brand-primary);border-color:var(--brand-primary);color:#fff}.btn.primary:hover{background-color:var(--brand-primary-hover)}.tool-btn{width:40px;height:40px;border-radius:var(--radius-md);border:none;background:transparent;color:var(--text-secondary);cursor:pointer;display:flex;justify-content:center;align-items:center;transition:all .2s ease}.tool-btn:hover{background-color:var(--bg-main);color:var(--brand-primary)}.tool-btn.active{background-color:#eff6ff;color:var(--brand-primary)}.panel-section{margin-bottom:24px}.panel-title{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:12px;font-weight:600}.setting-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.setting-label{font-size:.85rem;color:var(--text-secondary)}.setting-input{width:80px;padding:4px 8px;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:.85rem;font-family:Roboto Mono,monospace;text-align:right;outline:none}.setting-input:focus{border-color:var(--brand-primary);box-shadow:0 0 0 2px #3b82f633}.color-picker{width:32px;height:32px;padding:0;border:1px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;overflow:hidden}.color-picker::-webkit-color-swatch-wrapper{padding:0}.color-picker::-webkit-color-swatch{border:none}.canvas-wrapper{position:relative;width:100%;height:100%;display:flex;justify-content:center;align-items:center}canvas{box-shadow:var(--shadow-md);background-color:#fff;background-image:linear-gradient(#f0f0f0 1px,transparent 1px),linear-gradient(90deg,#f0f0f0 1px,transparent 1px);background-size:10px 10px}.preview-box{width:100%;height:150px;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:var(--bg-main);margin-bottom:16px;overflow:hidden;display:flex;justify-content:center;align-items:center}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}@media(max-width:768px){.app-container{grid-template-columns:1fr;grid-template-rows:auto auto 1fr auto;grid-template-areas:"topbar" "sidebar" "main" "rightpanel";height:auto;min-height:100vh}body{overflow:auto}.main-content{min-height:50vh}.sidebar{flex-direction:row;padding:8px;border-right:none;border-bottom:1px solid var(--border-color);overflow-x:auto;justify-content:flex-start}.rightpanel{border-left:none;border-top:1px solid var(--border-color)}.topbar{flex-direction:column;padding:10px;height:auto;gap:10px}.btn-group{flex-wrap:wrap;justify-content:center}}