.editor-area{display:grid;grid-template-columns:1fr 2fr;gap:3rem;align-items:flex-start;width:100%;max-width:1400px;margin:0 auto;}.options-panel{background:var(--card-bg);border:1px solid var(--card-border);border-radius:16px;padding:2rem;position:sticky;top:100px;}.options-panel h3{margin-bottom:1.5rem;color:var(--primary-color);}.unit-tabs{display:flex;background:rgba(255,255,255,0.05);border-radius:8px;margin-bottom:1.5rem;overflow:hidden;}.tab-link{flex:1;padding:0.8rem;background:none;border:none;color:var(--text-color-light);font-size:0.9rem;font-weight:500;cursor:pointer;transition:background 0.3s ease;}.tab-link.active{background:var(--primary-color);color:#fff;}.tab-content{display:none;}.tab-content.active{display:block;animation:fadeIn 0.3s;}.form-group{margin-bottom:1.5rem;}.form-group label{display:block;font-weight:500;margin-bottom:0.75rem;}.input-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}.file-name-display{font-size:0.8rem;color:var(--text-color-light);margin-top:0.5rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}.options-panel hr{border:none;border-top:1px solid var(--card-border);margin:1.5rem 0;}.checkbox-wrapper{display:flex;align-items:center;gap:0.75rem;}.checkbox-wrapper input[type="checkbox"]{width:18px;height:18px;accent-color:var(--primary-color);}input[type="color"]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:40px;background-color:transparent;border:1px solid var(--card-border);border-radius:8px;cursor:pointer;}input[type="color"]::-webkit-color-swatch{border-radius:6px;border:none;}input[type="color"]::-moz-color-swatch{border-radius:6px;border:none;}.slider{-webkit-appearance:none;appearance:none;width:100%;height:8px;background:rgba(255,255,255,0.1);outline:none;border-radius:10px;cursor:pointer;}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;background:var(--primary-color);border-radius:50%;border:3px solid #fff;box-shadow:0 0 5px rgba(0,0,0,0.2);}.action-buttons{margin-top:2rem;}.btn-link{background:none;border:none;color:var(--text-color-light);cursor:pointer;font-size:0.9rem;text-decoration:underline;transition:color 0.3s ease;margin-top:1rem;display:block;text-align:center;}.btn-link:hover{color:var(--primary-color);}.preview-panel{width:100%;background:var(--card-bg);border-radius:16px;padding:1rem;display:flex;justify-content:center;align-items:center;min-height:500px;border:1px solid var(--card-border);}#preview-canvas{max-width:100%;max-height:80vh;object-fit:contain;border-radius:8px;cursor:grab;}#preview-canvas:active{cursor:grabbing;}@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}@media screen and (max-width:900px){.editor-area{grid-template-columns:1fr;}.preview-panel{grid-row:1;}.options-panel{position:static;margin-top:2rem;}}