/* ==========================================================================
   FormReady — PDF Split page styles (tools/pdf-split.html only)
   Owner: Zara (W4) · Page-specific CSS only; every value flows from the
   :root tokens in styles.css (design-system.md §9: no page-level <style>,
   no invented colours). Loaded AFTER styles/components/motion.
   ========================================================================== */

/* --- page thumbnail grid --------------------------------------------------- */

.split-page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.split-page-card {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-2);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-card);
  box-shadow: var(--shadow-clay-sm);
}

/* pdf.js renders into this canvas; before its lazy render lands (and if a
   thumbnail ever fails) the card keeps a stable, paper-like box so the
   numeric page label below still works as a plain page picker. */
.split-page-card canvas {
  display: block;
  width: 100%;
  height: auto;
  min-height: 72px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-card);
}

.split-page-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.split-page-num {
  font-size: var(--text-sm);
  font-weight: 800;
}

/* Checkboxes only carry meaning in "Selected pages" mode; the grid gets
   .is-select-mode from JS in that mode and hides them otherwise. The input
   itself stays a real, keyboard-usable checkbox whenever it is shown. */
.split-page-check {
  width: 24px;
  height: 24px;
  flex: none;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.split-page-grid:not(.is-select-mode) .split-page-check {
  display: none;
}

.split-page-grid.is-select-mode .split-page-card {
  cursor: pointer;
}

.split-page-grid.is-select-mode .split-page-card:has(.split-page-check:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

/* --- mode toggle ----------------------------------------------------------- */

/* Three mode labels (longer still in Hindi) must not overflow a 390px
   phone: let the segmented control wrap and the labels break lines. */
.split-mode-toggle {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
}

.split-mode-toggle .toggle-btn {
  flex: 1 1 30%;
  white-space: normal;
  text-align: center;
  padding-inline: var(--space-2);
}

/* --- mode panels ----------------------------------------------------------- */

.split-select-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.split-selected-count {
  font-size: var(--text-sm);
  font-weight: 800;
  color: var(--color-muted-foreground);
}

@media (max-width: 374px) {
  .split-page-grid {
    grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .split-page-card {
    transition: none;
  }
}