:root{color-scheme:dark;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#000}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;background:#000;color:#fff}#root{flex:1;display:flex}.app{display:flex;width:100%}.image-list{width:220px;background:#111;border-right:1px solid #333;padding:20px 0;overflow:hidden;display:flex;flex-direction:column}.upload-container{padding:0 20px 14px;border-bottom:1px solid #333}.upload-header{font-size:13px;margin-bottom:8px;color:#ddd;font-weight:600}.upload-btn{display:inline-block;background:#ff6b00;color:#fff;padding:10px 12px;border-radius:6px;font-size:12px;font-weight:700;cursor:pointer;transition:background-color .2s ease}.upload-btn:hover{background:#e65c00}.upload-btn input{display:none}.upload-note{margin-top:8px;font-size:11px;color:#888}.image-list-items{flex:1;overflow:auto}.image-item{padding:12px 20px;cursor:pointer;border-left:3px solid transparent;transition:all .2s;font-size:13px;display:flex;align-items:center;justify-content:space-between;gap:6px}.image-item:hover{background:#222;border-left-color:#555}.image-item.active{background:#1a1a1a;border-left-color:#fff;font-weight:600}.pill{background:#2a2a2a;color:#bbb;border:1px solid #333;border-radius:999px;padding:2px 8px;font-size:10px;text-transform:uppercase;letter-spacing:.5px}.export-all-container{padding:16px 20px;border-top:1px solid #333;background:#0a0a0a}.export-all-btn{width:100%;padding:12px;font-size:13px;background:#ff6b00;color:#fff;border:none;border-radius:6px;cursor:pointer;transition:background-color .2s;font-weight:700}.export-all-btn:hover:not(:disabled){background:#e65c00}.export-all-btn:disabled{opacity:.5;cursor:not-allowed;background:#555}.export-progress{margin-top:8px;font-size:11px;color:#888;text-align:center}.main-content{flex:1;display:flex;flex-direction:column;overflow:auto}.controls{max-width:1200px;margin:0 auto;padding:24px;width:100%}h1{margin:0 0 20px;font-size:26px}.control-group{margin:10px 0;display:flex;align-items:center;gap:12px}.control-group label{width:200px;font-size:14px;color:#ddd}.control-group input[type=range]{flex:1;accent-color:#8377ff}.control-group span{width:48px;text-align:right;color:#aaa;font-variant-numeric:tabular-nums}canvas{width:100%;height:auto;display:block;border:1px solid #333;border-radius:4px}#auroraCanvas{margin:12px 0 24px;max-width:100%}.preview-section{margin-top:30px;border-top:1px solid #333;padding-top:20px}.preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.preview-card{background:#111;border:1px solid #333;border-radius:8px;padding:15px}.preview-card h2{margin:0 0 10px;font-size:16px;color:#fff}.button-group{display:flex;gap:10px;margin-top:12px}button{padding:12px 24px;font-size:14px;background:#007bff;color:#fff;border:none;border-radius:6px;cursor:pointer;transition:background-color .2s}button:hover:not(:disabled){background:#0056b3}button:disabled{opacity:.5;cursor:not-allowed}button.export-both{background:#28a745;flex:1}button.export-both:hover:not(:disabled){background:#218838}.status{margin-top:10px;padding:10px;background:#1a1a1a;border-radius:4px;font-size:12px;color:#888}@media (max-width: 900px){.app{flex-direction:column}.image-list{width:100%;border-right:none;border-bottom:1px solid #333;flex-direction:row;overflow:auto}.image-list-items{display:flex;flex:1}.image-item{border-left:none;border-bottom:3px solid transparent}.image-item.active{border-bottom-color:#fff}.preview-grid{grid-template-columns:1fr}}