/* ============================================================
   FAQ.CSS — Frequently Asked Questions page styles
   ============================================================ */

/* ── Field 1 — Hero ── */
.faq-hero {
  padding-top: calc(var(--space-3xl) + 60px);
  padding-bottom: var(--space-2xl);
  text-align: center;
}

.faq-hero h1 {
  max-width: 20ch;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
}

.faq-hero-subtitle {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-accent-gold);
  line-height: var(--leading-snug);
  max-width: 52ch;
  margin: 0 auto var(--space-2xl);
  font-style: italic;
}

/* Wave graphic lives in the hero as the page's visual anchor. */
.faq-wave {
  max-width: 900px;
  margin: 0 auto;
  padding-inline: var(--space-lg);
}

.faq-wave img {
  width: 100%;
  border-radius: var(--border-radius-lg);
}

.faq-wave figcaption {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-style: italic;
  text-align: center;
  margin-top: var(--space-sm);
  letter-spacing: var(--tracking-wide);
}

/* ── Field 2 — What Field Harmonix measures ── */
.faq-measure { background: var(--color-surface-alpha); }

.faq-measure h2 {
  margin-bottom: var(--space-xl);
}

.faq-measure p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: none;
  margin-bottom: var(--space-lg);
}

.faq-signals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-block: var(--space-lg);
}

.faq-signal h3 {
  color: var(--color-accent-gold);
  margin-bottom: var(--space-sm);
  font-size: var(--text-xl);
}

.faq-signal p {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  margin-bottom: 0;
  max-width: none;
}

.faq-measure-close {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(184, 150, 12, 0.25);
  color: var(--color-text-primary) !important;
}

/* ── Field 3 — FAQ accordion list ── */
.faq-list-section h2 {
  margin-bottom: var(--space-xl);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid rgba(184, 150, 12, 0.15);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: rgba(184, 150, 12, 0.5);
}

.faq-item summary {
  list-style: none;
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-primary);
  position: relative;
  padding-right: var(--space-2xl);
  transition: color var(--transition-fast);
}

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

.faq-item summary:hover {
  color: var(--color-accent-gold);
}

.faq-item summary::after {
  content: '';
  position: absolute;
  right: var(--space-lg);
  top: 50%;
  width: 10px;
  height: 10px;
  background: var(--color-accent-gold);
  transform: translateY(-50%) rotate(45deg);
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  transform: translateY(-25%) rotate(225deg);
}

.faq-body {
  padding: 0 var(--space-lg) var(--space-lg);
  border-top: 1px solid rgba(184, 150, 12, 0.15);
  padding-top: var(--space-md);
}

.faq-body p {
  color: var(--color-text-secondary);
  max-width: none;
  margin-bottom: var(--space-md);
  font-size: var(--text-base);
}

.faq-body p:last-child {
  margin-bottom: 0;
}

.faq-body .diamond-list {
  margin-bottom: var(--space-md);
}

.faq-body .diamond-list li {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

/* ── Field 2 — Insights (thesis framing) ──
   All three lines share the site's display-serif treatment at
   --text-xl. The first two are white (observation); the third
   is italic gold-bright (conclusion), matching the
   observation → kicker pattern used on the home page problem
   section. */
.faq-insight {
  background: var(--color-surface-alpha);
}

.faq-insight h2 {
  margin-bottom: var(--space-xl);
}

.faq-insight-line {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  max-width: 48ch;
  margin: 0 auto var(--space-md);
}

.faq-insight-close {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  color: var(--color-gold-bright);
  max-width: 48ch;
  margin: var(--space-lg) auto 0;
}

/* ── Field 5 — CTA ── */
.faq-cta p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin: 0 auto var(--space-xl);
}

.faq-cta-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .faq-hero-subtitle {
    font-size: var(--text-lg);
  }
}

@media (max-width: 640px) {
  .faq-item summary {
    font-size: var(--text-base);
  }

  .faq-insight-line,
  .faq-insight-close {
    font-size: var(--text-lg);
  }
}