/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #111; }
::-webkit-scrollbar-thumb { background: #444; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #666; }

/* File card canvas */
.preview-canvas { display: block; }

/* Smooth transitions */
.file-card { transition: border-color 0.2s; }
.file-card:hover { border-color: #374151; }

/* Spinner */
@keyframes spin { to { transform: rotate(360deg); } }
.animate-spin { animation: spin 1s linear infinite; }