/* 工具：PNG/JPG 转 ICO */

.ico-drop {
  border: 1.5px dashed var(--line);
  border-radius: 12px;
  padding: 44px 20px;
  text-align: center;
  cursor: pointer;
  background: var(--bg-alt);
  transition: border-color .15s, background .15s;
}
.ico-drop:hover,
.ico-drop:focus-visible,
.ico-drop.is-over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 6%, #fff); outline: none; }
.ico-drop-title { font-size: 15px; font-weight: 600; }
.ico-drop-hint { font-size: 13px; color: var(--ink-3); margin-top: 6px; }

.ico-canvas-wrap {
  position: relative;
  height: 320px;
  border-radius: 12px;
  background: var(--bg-alt);
  overflow: hidden;
  touch-action: none;
  user-select: none;
}
.ico-canvas-wrap img {
  position: absolute;
  inset: 0;
  margin: auto;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  pointer-events: none;
}

.ico-crop {
  position: absolute;
  box-sizing: border-box;
  border: 1.5px solid #fff;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, .45);
  cursor: move;
}
.ico-crop::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(0, 0, 0, .35);
  pointer-events: none;
}
.ico-handle {
  position: absolute;
  width: 14px;
  height: 14px;
  background: #fff;
  border: 1.5px solid var(--accent);
  border-radius: 3px;
}
.ico-handle[data-corner="nw"] { top: -8px; left: -8px; cursor: nwse-resize; }
.ico-handle[data-corner="ne"] { top: -8px; right: -8px; cursor: nesw-resize; }
.ico-handle[data-corner="sw"] { bottom: -8px; left: -8px; cursor: nesw-resize; }
.ico-handle[data-corner="se"] { bottom: -8px; right: -8px; cursor: nwse-resize; }

.ico-sizes { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 4px; }
.ico-sizes label { display: inline-flex; align-items: center; gap: 6px; margin: 0; font-weight: 500; font-size: 14px; }
.ico-sizes input { accent-color: var(--accent); width: 16px; height: 16px; }

.ico-actions { display: flex; align-items: center; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.ico-actions .btn:disabled { opacity: .5; cursor: not-allowed; }

@media (max-width: 640px) {
  .ico-canvas-wrap { height: 240px; }
  .ico-drop { padding: 32px 16px; }
}