/* ── Quiz/Exam Setup Redesign ─────────────────────────── */

/* Let setup pages use full available width */
.container:has(.setup-grid) {
  max-width: 1600px;
}

/* Two-column grid: cards left, config right */
.setup-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(14rem, 18vw, 17rem);
  gap: var(--spacing-lg);
  align-items: start;
}

/* Masonry-style card layout for category cards */
.category-cards-grid {
  columns: 3 200px;
  column-gap: var(--spacing-md);
  transition: opacity 0.2s ease;
}

/* Issue 6b: "Due for Review" overlay message on the setup page. */
.due-overlay-message {
  padding: var(--spacing-md);
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  margin-bottom: var(--spacing-md);
}

/* Issue 4 (round-2 follow-up): tighten vertical gap between the quiz-setup
   header block and the Select All / Clear All / Expand All / Collapse All
   buttons, and reduce the bottom gap below the whole header. The default
   .page-header margin-bottom is generous for single-column content pages;
   here it creates too much whitespace before the domain/category pills. */
.quiz-setup-header {
  margin-bottom: var(--spacing-md);
}
.quiz-setup-actions {
  margin-top: 4px;
}

.category-cards-grid .category-card {
  break-inside: avoid;
  margin-bottom: var(--spacing-md);
}

/* Sticky configuration panel */
.setup-config-panel {
  position: sticky;
  top: var(--spacing-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-height: calc(100dvh - var(--spacing-xl));
  overflow-y: auto;
}

.setup-config-panel h3 {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 700;
}

.setup-config-panel .config-label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

/* Category card */
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}

.category-card:hover {
  border-color: var(--border-light);
}

.category-card.all-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.category-card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}

.category-card-header:hover {
  background: var(--bg-card-hover);
}

.category-card-info {
  flex: 1;
  min-width: 0;
}

.category-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.category-card-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 2px;
}

.category-card-icon {
  flex-shrink: 0;
  line-height: 0;
}

.category-card-icon svg {
  width: 32px;
  height: 32px;
}

/* Chevron for collapsible categories */
.category-chevron {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
  color: var(--text-muted);
}
.category-collapsed .category-chevron {
  transform: rotate(-90deg);
}

/* Collapsible topic rows */
.category-card-topics {
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.category-collapsed .category-card-topics {
  display: none;
}

/* Topic row inside a card (not inside a table) */
.topic-row:not(tr) {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-top: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
  gap: var(--spacing-sm);
}

.topic-row:hover {
  background: var(--bg-card-hover);
}

.topic-row.selected {
  background: var(--accent-dim);
  /* inset shadow acts as a left-bar accent without shifting row content —
   * keeps selection state obvious even when :hover stays sticky on iOS */
  box-shadow: inset 3px 0 0 0 var(--accent);
}
/* iOS keeps :hover sticky after tap, which can mask whether .selected is on.
 * Drop the hover effect on touch devices so only .selected drives the bg. */
@media (hover: none) {
  .topic-row:hover {
    background: transparent;
  }
}

.topic-row-name {
  flex: 1;
  font-size: 0.88rem;
  color: var(--text-primary);
}

.topic-row-count {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  min-width: 28px;
  text-align: right;
}

/* Question limit slider + number input */
.question-limit {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.question-limit input[type="range"] {
  flex: 1;
  height: 6px;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  margin: 6px 0;
  padding: 0;
  border: none;
  border-radius: 3px;
}

.question-limit input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 3px;
  background: transparent;
}

.question-limit input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-card);
  margin-top: -6px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.question-limit input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  border: none;
}

.question-limit input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-card);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.question-limit input[type="range"]::-moz-range-progress {
  height: 6px;
  border-radius: 3px;
  background: var(--accent);
}

.question-limit input[type="number"] {
  width: 64px;
  text-align: center;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.9rem;
  font-weight: 600;
}

.question-limit input[type="number"]:focus {
  outline: none;
  border-color: var(--accent);
}

/* Total selected questions count */
.selected-count {
  text-align: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.selected-count-title {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}

.selected-count-number {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
}

.selected-count-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Config panel filter pills (smaller, tighter) */
.setup-config-panel .filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

/* Responsive: tablet — stack config panel, 2-column masonry */
@media (min-width: 768px) and (max-width: 1023px) {
  .setup-grid {
    grid-template-columns: 1fr;
  }
  .setup-config-panel {
    position: static;
    max-height: none;
    order: -1;
  }
  .category-cards-grid {
    columns: 2;
  }
}

/* Responsive: mobile — single column */
@media (max-width: 767px) {
  .setup-grid {
    grid-template-columns: 1fr;
    padding-bottom: 72px;
  }
  .setup-config-panel {
    position: static;
    max-height: none;
    order: -1;
    padding: var(--spacing-sm);
    gap: var(--spacing-sm);
  }
  .category-cards-grid {
    columns: 1;
  }

  /* Full config shown inline on mobile (no collapsible toggle) */
  .mobile-config-toggle {
    display: none;
  }
  .mobile-config-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  /* Compact topic rows */
  .topic-row:not(tr) {
    padding: 6px var(--spacing-sm);
    gap: 4px;
  }
  .topic-row-name {
    font-size: 0.82rem;
  }
  .topic-row-count {
    font-size: 0.72rem;
    min-width: 22px;
  }
  .chip-yield {
    font-size: 0.6rem;
    padding: 1px 5px;
  }

  /* Compact category headers */
  .category-card-header {
    padding: var(--spacing-sm);
    gap: var(--spacing-sm);
  }
  .category-card-title {
    font-size: 0.88rem;
  }
  .category-card-count {
    font-size: 0.72rem;
  }
  .category-card-icon svg {
    width: 24px;
    height: 24px;
  }
}

/* Fixed bottom action bar for quiz setup (mobile) */
.mobile-action-bar {
  display: none;
}
@media (max-width: 767px) {
  .mobile-action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    bottom: calc(64px + env(safe-area-inset-bottom, 0px));
    left: 0;
    right: 0;
    z-index: 99;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.2);
  }
  .mobile-action-bar-info {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
  }
  .mobile-action-bar-count {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
  }
  .mobile-action-bar-label {
    font-size: 0.75rem;
    color: var(--text-muted);
  }
}