/*
 * image-watermark.css — per-tool styles: drop zones, the placement grid,
 * batch thumbnails and the live preview canvas. Tokens only; no inline styles.
 */

.iwm-stack { display: flex; flex-direction: column; gap: var(--space-5); }

/* Drop zones — a label wrapping the visually hidden native file input. */
.iwm-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  background: var(--neutral-50);
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.iwm-dropzone-sm { padding: var(--space-4); }
.iwm-dropzone:hover { border-color: var(--blue-600); background: var(--blue-50); }
.iwm-dropzone.is-dragover { border-color: var(--blue-600); background: var(--blue-100); }
.iwm-dropzone:focus-within { outline: 2px solid var(--blue-600); outline-offset: 2px; }
.iwm-dropzone-icon { color: var(--text-muted); }
.iwm-dropzone-title { font: 600 15px/1.4 var(--font-sans); color: var(--text-primary); }
.iwm-dropzone-hint { font: 400 13px/1.4 var(--font-sans); color: var(--text-secondary); }

.iwm-file-input {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Toolbar. */
.iwm-toolbar { display: flex; flex-direction: column; gap: var(--space-4); }

/* Batch thumbnails. */
.iwm-batch { display: flex; flex-direction: column; gap: var(--space-2); }
.iwm-thumbs { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.iwm-thumb {
  width: 52px; height: 52px;
  padding: 0;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  background: var(--neutral-100);
}
.iwm-thumb.is-active { border-color: var(--blue-600); }
.iwm-thumb:focus-visible { outline: 2px solid var(--blue-600); outline-offset: 2px; }
.iwm-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Control rows. */
.iwm-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
  align-items: end;
}
.iwm-shared { display: flex; flex-direction: column; gap: var(--space-4); }
.iwm-range { width: 100%; accent-color: var(--blue-600); cursor: pointer; }
.iwm-num {
  font: 600 13px/1 var(--font-mono, var(--font-sans));
  color: var(--text-secondary);
  margin-left: var(--space-2);
}
.iwm-color {
  width: 100%;
  height: 38px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--neutral-50);
  cursor: pointer;
}

/* 3×3 position grid. */
.iwm-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-1);
  width: 132px;
  max-width: 100%;
}
.iwm-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--neutral-50);
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.iwm-cell:hover { border-color: var(--blue-600); background: var(--blue-50); }
.iwm-cell.is-active { border-color: var(--blue-600); background: var(--blue-100); }
.iwm-cell:focus-visible { outline: 2px solid var(--blue-600); outline-offset: 2px; }
.iwm-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted); }
.iwm-cell.is-active .iwm-dot { background: var(--blue-600); }
#iwm-position-field.is-disabled { opacity: .5; pointer-events: none; }

/* Tile toggle. */
.iwm-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font: 400 14px/1.4 var(--font-sans);
  color: var(--text-primary);
}
.iwm-check input { width: 16px; height: 16px; accent-color: var(--blue-600); cursor: pointer; }
.iwm-tile-field .field-help { margin: var(--space-1) 0 0; }

/* Stage + canvas — checkered so transparent images read clearly. */
.iwm-stage { display: flex; flex-direction: column; gap: var(--space-2); }
.iwm-canvas-wrap {
  margin: 0;
  padding: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: var(--neutral-50);
  background-image:
    linear-gradient(45deg, var(--neutral-100) 25%, transparent 25%),
    linear-gradient(-45deg, var(--neutral-100) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--neutral-100) 75%),
    linear-gradient(-45deg, transparent 75%, var(--neutral-100) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  overflow: auto;
}
.iwm-canvas {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}
.iwm-status {
  margin: 0;
  min-height: 1.25em;
  font: 400 13px/1.4 var(--font-sans);
  color: var(--text-secondary);
}