#drop-zone.drag-over { border-color: #3b82f6; background: #eff6ff; }
.tool-page { max-width: 1200px; margin: 0 auto; padding: 2rem 1rem; }
.preview-container { display: flex; gap: 2rem; flex-wrap: wrap; }
.preview-panel { flex: 1; min-width: 300px; }
.preview-panel img { max-width: 100%; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.controls { background: white; padding: 1.5rem; border-radius: 12px; box-shadow: 0 1px 3px rgba(0,0,0,0.08); margin-bottom: 1rem; }
.controls label { display: block; font-size: 0.875rem; font-weight: 500; color: #374151; margin-bottom: 0.5rem; margin-top: 0.75rem; }
.controls label:first-child { margin-top: 0; }
.controls input, .controls select { width: 100%; padding: 0.5rem 0.75rem; border: 1px solid #d1d5db; border-radius: 8px; font-size: 0.875rem; }
.btn-primary { background: #2563eb; color: white; border: none; padding: 0.75rem 1.5rem; border-radius: 8px; font-weight: 500; cursor: pointer; width: 100%; }
.btn-primary:hover { background: #1d4ed8; }
.btn-secondary { background: white; color: #374151; border: 1px solid #d1d5db; padding: 0.75rem 1.5rem; border-radius: 8px; font-weight: 500; cursor: pointer; width: 100%; margin-top: 0.5rem; }
.file-info { font-size: 0.75rem; color: #9ca3af; margin-top: 0.25rem; }

@media (max-width: 768px) {
  .preview-container { flex-direction: column; }
}