/* ============================================
   FAQ Accordion
   Accessible: keyboard-operable, aria-expanded
   Smooth height transition via grid trick
   ============================================ */

.faq {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* --- Individual FAQ item --- */

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__item:last-child {
  border-bottom: none;
}

/* --- Question (trigger button) --- */

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-family: inherit;
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  background: var(--color-surface);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-base);
  min-height: 44px;
}

.faq__question:hover {
  background-color: var(--color-bg-alt);
}

.faq__question:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
  border-radius: 0;
}

/* Chevron icon */
.faq__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.faq__icon svg {
  width: 16px;
  height: 16px;
}

/* Rotate chevron when expanded */
.faq__question[aria-expanded='true'] .faq__icon {
  transform: rotate(180deg);
}

.faq__question[aria-expanded='true'] {
  color: var(--color-accent);
}

/* --- Answer panel --- 
   Uses CSS grid for smooth height animation.
   grid-template-rows: 0fr → 1fr transition animates height.
*/

.faq__answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-slow);
}

.faq__answer[aria-hidden='false'] {
  grid-template-rows: 1fr;
}

.faq__answer-inner {
  overflow: hidden;
}

.faq__answer-content {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.faq__answer-content p:last-child {
  margin-bottom: 0;
}

/* --- Responsive --- */

@media (max-width: 768px) {
  .faq__question {
    padding: var(--space-4) var(--space-4);
    font-size: var(--fs-sm);
  }

  .faq__answer-content {
    padding: 0 var(--space-4) var(--space-4);
  }
}

/* --- Reduced motion --- */

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

  .faq__icon {
    transition: none;
  }
}