.faq-main {
  padding: 90px 0 100px;
}

.faq-hero {
  max-width: 800px;
  margin-bottom: 110px;
}

.faq-hero h1 {
  margin: 18px 0 26px;
  font-size: clamp(46px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.faq-hero h1 em {
  color: var(--lime);
  font-family: Georgia, serif;
  font-weight: 400;
}

.faq-hero > p:last-child {
  max-width: 670px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.phase-guide {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.phase-guide article {
  min-height: 250px;
  padding: 22px 18px;
  background: var(--panel);
}

.phase-guide b {
  color: var(--green);
  font: 11px 'DM Mono', monospace;
}

.phase-guide h3 {
  min-height: 52px;
  margin: 30px 0 14px;
  font-size: 16px;
  line-height: 1.35;
}

.phase-guide p,
.source-line {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.source-line {
  margin: 16px 0 0;
}

.source-line a,
.method-callout a {
  color: var(--green);
}

.faq-section {
  padding-top: 110px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 22px 4px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  list-style: none;
}

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

.faq-list summary::after {
  content: '+';
  color: var(--green);
  font: 20px 'DM Mono', monospace;
}

.faq-list details[open] summary::after {
  content: '−';
}

.faq-list summary:focus-visible {
  outline: 1px solid var(--green);
  outline-offset: 4px;
}

.faq-list details p {
  max-width: 820px;
  margin: -4px 0 24px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.method-callout {
  display: grid;
  grid-template-columns: 1fr 1.2fr auto;
  align-items: center;
  gap: 50px;
  margin-top: 110px;
  padding: 28px;
}

.method-callout h2 {
  margin: 9px 0 0;
  font-size: 24px;
}

.method-callout > p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.method-callout > a {
  white-space: nowrap;
  font: 11px 'DM Mono', monospace;
  text-decoration: none;
}

@media (max-width: 900px) {
  .phase-guide {
    grid-template-columns: 1fr 1fr;
  }

  .phase-guide article {
    min-height: 0;
  }

  .phase-guide h3 {
    min-height: 0;
  }

  .method-callout {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  .faq-main {
    padding-top: 60px;
  }

  .phase-guide {
    grid-template-columns: 1fr;
  }
}