#thumbnail-crop-dialog { width: min(860px, calc(100vw - 24px)); max-width: 860px; max-height: calc(100dvh - 24px); padding: 24px; }
#thumbnail-crop-dialog[open] { display: flex; flex-direction: column; overflow: hidden; gap: 14px; }
.thumbnail-crop-header { display: flex; align-items: flex-start; gap: 12px; flex-shrink: 0; }
.thumbnail-crop-header > div { flex: 1; }
#thumbnail-crop-dialog h2 { margin: 0 0 6px; }
#thumbnail-crop-dialog .hint { margin: 6px 0; }
.thumbnail-crop-body { overflow: auto; min-height: 0; padding: 2px; }
.thumbnail-crop-toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.thumbnail-crop-toolbar label { font-weight: 600; }
.thumbnail-crop-toolbar select { width: auto; min-width: 140px; }
.thumbnail-crop-toolbar button { margin-left: auto; }
.thumbnail-crop-stage { display: flex; justify-content: center; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: #edf1f6; }
#thumbnail-crop-frame { position: relative; width: 100%; max-width: 100%; aspect-ratio: 16 / 9; overflow: hidden; touch-action: none; background: #dde4ec; }
#thumbnail-crop-image { display: block; width: 100%; height: 100%; object-fit: contain; user-select: none; pointer-events: none; }
#thumbnail-crop-image[hidden] { display: none; }
#thumbnail-crop-selection { position: absolute; border: 2px solid white; outline: 1px solid var(--blue); box-shadow: 0 0 0 2000px #14233980; cursor: move; touch-action: none; }
#thumbnail-crop-selection:focus-visible { outline: 3px solid var(--blue); }
#thumbnail-crop-selection::before { content: ''; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(to right, transparent 33%, #fff5 33%, #fff5 33.3%, transparent 33.3%, transparent 66.6%, #fff5 66.6%, #fff5 67%, transparent 67%), linear-gradient(to bottom, transparent 33%, #fff5 33%, #fff5 33.3%, transparent 33.3%, transparent 66.6%, #fff5 66.6%, #fff5 67%, transparent 67%); }
#thumbnail-crop-selection button { position: absolute; width: 24px; height: 24px; min-height: 0; padding: 0; border: 2px solid var(--blue); border-radius: 5px; background: white; z-index: 1; touch-action: none; }
#thumbnail-crop-selection [data-corner="nw"] { left: 0; top: 0; cursor: nwse-resize; }
#thumbnail-crop-selection [data-corner="ne"] { right: 0; top: 0; cursor: nesw-resize; }
#thumbnail-crop-selection [data-corner="sw"] { left: 0; bottom: 0; cursor: nesw-resize; }
#thumbnail-crop-selection [data-corner="se"] { right: 0; bottom: 0; cursor: nwse-resize; }
.thumbnail-crop-controls { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: 10px 0; }
.thumbnail-crop-controls label { display: block; font-size: 13px; font-weight: 600; }
.thumbnail-crop-controls input { display: block; width: 100%; min-height: 30px; padding: 0; accent-color: var(--blue); }
#thumbnail-crop-quality { color: var(--warn); }
.thumbnail-crop-footer { border-top: 1px solid var(--line); padding-top: 12px; flex-shrink: 0; }
#thumbnail-crop-dialog .dialog-actions { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 8px; margin: 0; }
#thumbnail-crop-dialog .dialog-actions .hint { flex: 1; font-size: 12px; }
#thumbnail-crop-dialog .btn { background: transparent; color: var(--blue); border: 1px solid #bacbe8; }
#thumbnail-crop-dialog .btn:hover, #thumbnail-crop-dialog .btn:focus-visible { background: transparent; border-color: var(--blue); box-shadow: 0 0 0 1px var(--blue); }
#thumbnail-crop-dialog .btn:disabled { box-shadow: none; opacity: .45; }
#image-preview-wrap .thumb { max-width: 360px; width: auto; max-height: 230px; object-fit: contain; }
@media (max-width: 520px) {
  #thumbnail-crop-dialog { padding: 14px; gap: 10px; }
  .thumbnail-crop-header .hint { font-size: 12px; }
  .thumbnail-crop-controls { gap: 12px; }
  .thumbnail-crop-toolbar { gap: 8px; }
  .thumbnail-crop-toolbar select { min-width: 0; flex: 1; }
  #thumbnail-crop-dialog .dialog-actions .hint { flex-basis: 100%; }
  #thumbnail-crop-dialog .dialog-actions button { flex: 1; }
  #image-preview-wrap .thumb { max-width: 100%; }
}