/* ============================================
   FAQ Section — Tabs + Accordion
   ============================================ */

/* --- Tab Navigation Bar --- */
.faq-tabs {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: var(--space-2);
}

.faq-tabs::-webkit-scrollbar {
  display: none;
}

.faq-tab {
  flex-shrink: 0;
  padding: var(--space-2) var(--space-4);
  border-radius: 6px;
  border: 1px solid var(--border-card);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 500;
  cursor: pointer;
  transition:
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.faq-tab:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.faq-tab.active {
  color: var(--text-inverse);
  background: var(--accent-gradient);
  border-color: transparent;
}

/* --- Q&A Group Container --- */
.faq-group {
  display: none;
}

.faq-group.active {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* --- Single Q&A Item (Accordion) --- */
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-item[open] {
  border-color: var(--border-accent);
}

/* --- Question (summary) --- */
.faq-question {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 600;
  color: var(--text-primary);
  list-style: none;
  user-select: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.faq-question::-webkit-details-marker {
  display: none;
}

/* Custom chevron arrow */
.faq-question::before {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%237a7a8e' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  transition: transform var(--duration-fast) var(--ease-out);
}

.faq-item[open] .faq-question::before {
  transform: rotate(90deg);
}

.faq-item[open] .faq-question {
  color: var(--accent-text);
}

/* --- Answer Area --- */
.faq-answer {
  padding: 0 var(--space-5) var(--space-5);
  padding-left: calc(var(--space-5) + 20px + var(--space-3));
  border-top: 1px solid var(--border-subtle);
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: var(--text-small);
  line-height: 1.8;
  margin-top: var(--space-4);
}

.faq-answer code {
  font-family: var(--font-mono);
  font-size: 0.8em;
  background: var(--bg-elevated);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  color: var(--accent-text);
}

.faq-answer strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .faq-question {
    font-size: var(--text-small);
    padding: var(--space-3) var(--space-4);
  }

  .faq-answer {
    padding: 0 var(--space-4) var(--space-4);
    padding-left: calc(var(--space-4) + 20px + var(--space-3));
  }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  .faq-question::before {
    transition: none;
  }
}