/*
 * Selector Tile — the canonical radio/checkbox tile selector (ui-audit 3C.3, SPOT-11 / E7).
 * Promoted from spot's input-complexity tile. A visually-hidden input inside a
 * <label class="selector-tile-option"> drives every state via :checked / :focus-visible —
 * selection visuals need no JS. Loaded globally from base.html's component_css block
 * (app shell only; marketing_base empties that block).
 *
 * Structure (stacked, the default):
 *   <label class="selector-tile-option">
 *     <input type="radio" name="…" class="selector-tile-input">
 *     <div class="selector-tile">
 *       <div class="selector-tile-icon"><i class="fas fa-bolt" aria-hidden="true"></i></div>
 *       <div class="selector-tile-header">
 *         <span class="selector-tile-name">Name</span>
 *         <span class="badge bg-primary selector-tile-badge">Tag</span>
 *       </div>
 *       <div class="selector-tile-meta">~20 min</div>
 *       <div class="selector-tile-desc">One-line description.</div>
 *     </div>
 *   </label>
 *
 * Horizontal variant: add selector-tile--row to the tile and wrap name/desc in
 * selector-tile-body; an optional trailing selector-tile-aside slot pins to the end.
 * Compact variant: selector-tile--sm. Disabled: selector-tile-option--disabled on the
 * label + disabled on the input. Group helper: selector-tile-group (vertical stack);
 * grids use Bootstrap row/col utilities instead.
 */

.selector-tile-option {
  display: block;
  cursor: pointer;
  margin: 0;
}

.selector-tile-option--disabled {
  cursor: default;
  opacity: 0.6;
}

/* Visually hidden but focusable — keeps native radio/checkbox keyboard behaviour. */
.selector-tile-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.selector-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem 1rem 1.25rem;
  border: 1.5px solid var(--bs-border-color);
  border-radius: 0.5rem;
  background: var(--bs-white, #fff);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease,
    transform 0.15s ease;
}

/* ── States ── */
.selector-tile-option:not(.selector-tile-option--disabled):hover .selector-tile {
  border-color: var(--varial-primary-light, #60A5FA);
  background: rgba(37, 99, 235, 0.03);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
  transform: translateY(-2px);
}

.selector-tile-input:checked + .selector-tile {
  border-color: var(--varial-primary, #2563EB);
  background: rgba(37, 99, 235, 0.06);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12), 0 4px 12px rgba(37, 99, 235, 0.08);
}

.selector-tile-input:focus-visible + .selector-tile {
  outline: 2px solid var(--varial-primary, #2563EB);
  outline-offset: 2px;
}

/* Dark mode: tiles default to a white fill — give them the dark card surface
   (name/desc text already flip light via tokens). */
[data-bs-theme="dark"] .selector-tile {
  background: var(--varial-card-bg, #1E293B);
  border-color: var(--varial-border, #334155);
}

[data-bs-theme="dark"] .selector-tile-option:not(.selector-tile-option--disabled):hover .selector-tile {
  background: rgba(96, 165, 250, 0.08);
}

[data-bs-theme="dark"] .selector-tile-input:checked + .selector-tile {
  background: rgba(96, 165, 250, 0.12);
}

/* ── Sub-elements ── */
.selector-tile-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.08);
  color: var(--varial-primary, #2563EB);
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  line-height: 1;
  flex-shrink: 0;
}

.selector-tile-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.35rem;
}

.selector-tile-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--varial-gray-900, #131210);
}

.selector-tile-badge {
  font-size: 0.65rem;
  padding: 0.2em 0.5em;
  vertical-align: middle;
}

.selector-tile-meta {
  font-size: 0.75rem;
  color: var(--varial-gray-500, #716E69);
  margin-bottom: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
}

.selector-tile-desc {
  font-size: 0.78rem;
  color: var(--varial-gray-600, #4B5563);
  line-height: 1.45;
}

/* ── Compact modifier ── */
.selector-tile--sm {
  padding: 0.7rem 0.75rem 0.65rem;
}

.selector-tile--sm .selector-tile-icon {
  width: 2rem;
  height: 2rem;
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}

.selector-tile--sm .selector-tile-name {
  font-size: 0.82rem;
}

.selector-tile--sm .selector-tile-meta {
  font-size: 0.68rem;
  margin-bottom: 0.35rem;
}

.selector-tile--sm .selector-tile-desc {
  font-size: 0.7rem;
  line-height: 1.35;
}

/* ── Horizontal (row) modifier: icon | body | aside ── */
.selector-tile--row {
  flex-direction: row;
  align-items: center;
  text-align: left;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  box-shadow: none;
}

.selector-tile--row .selector-tile-icon {
  width: 2rem;
  height: 2rem;
  font-size: 0.85rem;
  margin-bottom: 0;
}

.selector-tile--row .selector-tile-header {
  justify-content: flex-start;
  margin-bottom: 0;
}

.selector-tile--row .selector-tile-body {
  flex: 1;
  min-width: 0;
}

.selector-tile--row .selector-tile-name {
  font-size: 0.875rem;
}

.selector-tile--row .selector-tile-desc {
  font-size: 0.775rem;
  margin-top: 0.1rem;
}

.selector-tile--row .selector-tile-meta {
  justify-content: flex-start;
  margin-bottom: 0;
}

.selector-tile-aside {
  font-size: 0.75rem;
  color: var(--varial-gray-500, #716E69);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Row tiles sit in vertical lists — keep the calmer ring hover, no lift. */
.selector-tile-option:not(.selector-tile-option--disabled):hover .selector-tile--row {
  transform: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

/* ── Group helper (vertical stack of row tiles) ── */
.selector-tile-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}