/* css/landing.css — トップ画面の「読み物」セクション */

.landing {
  margin-top: var(--sp-xl);
  padding-top: var(--sp-lg);
}

.landing::before {
  content: '';
  display: block;
  width: 80px;
  height: 1px;
  margin: 0 auto var(--sp-md);
  background: linear-gradient(90deg, transparent, rgba(219,89,151,0.4), transparent);
}

.landing__intro {
  text-align: center;
  font-size: 0.78rem;
  color: rgba(240,232,245,0.45);
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-xl);
  font-weight: 300;
  line-height: 1.7;
}

.landing__section {
  margin-bottom: var(--sp-xl);
}

.landing__section-label {
  font-size: 10px;
  letter-spacing: 0.22em;
  color: rgba(240,232,245,0.36);
  font-weight: 300;
  text-align: center;
  margin-bottom: var(--sp-sm);
}

.landing__section-title {
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--sp-md);
  color: var(--color-text);
  letter-spacing: 0.04em;
}

.landing__lead {
  font-size: 0.88rem;
  line-height: 1.95;
  color: rgba(240,232,245,0.72);
  max-width: 560px;
  margin: 0 auto var(--sp-lg);
}

/* 16タイプ一覧グリッド */
.landing__type-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-sm);
  margin-top: var(--sp-md);
}

.landing__type-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(219,89,151,0.18);
  border-radius: var(--radius-md);
  padding: var(--sp-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}

.landing__type-card:hover {
  text-decoration: none;
  border-color: rgba(219,89,151,0.45);
  background: rgba(255,255,255,0.06);
  transform: translateY(-2px);
}

.landing__type-card-img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  margin-bottom: 6px;
}

.landing__type-card-code {
  font-family: 'Courier New', monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: rgba(240,232,245,0.42);
  margin-bottom: 2px;
}

.landing__type-card-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.landing__type-card-copy {
  font-size: 0.72rem;
  line-height: 1.5;
  color: rgba(240,232,245,0.58);
  font-weight: 300;
}

@media (min-width: 540px) {
  .landing__type-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 4軸の解説 */
.landing__axis-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-sm);
}

@media (min-width: 540px) {
  .landing__axis-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.landing__axis-item {
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(219,89,151,0.16);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
}

.landing__axis-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.landing__axis-desc {
  font-size: 0.82rem;
  line-height: 1.8;
  color: rgba(240,232,245,0.7);
}

.landing__axis-desc strong {
  color: var(--color-text);
  font-weight: 600;
}

/* 解説本文 */
.landing__prose {
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(219,89,151,0.14);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
}

.landing__prose p {
  font-size: 0.86rem;
  line-height: 1.95;
  color: rgba(240,232,245,0.78);
  margin-bottom: var(--sp-sm);
}

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

/* FAQ */
.landing__faq {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.landing__faq details {
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(219,89,151,0.16);
  border-radius: var(--radius-md);
  padding: 0;
  overflow: hidden;
}

.landing__faq summary {
  cursor: pointer;
  list-style: none;
  padding: var(--sp-md);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  position: relative;
}

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

.landing__faq summary::before {
  content: 'Q.';
  font-family: 'Courier New', monospace;
  color: var(--color-primary-dark);
  font-weight: 700;
  flex-shrink: 0;
}

.landing__faq summary::after {
  content: '＋';
  margin-left: auto;
  color: rgba(240,232,245,0.45);
  font-weight: 300;
  transition: transform 0.2s;
}

.landing__faq details[open] summary::after {
  content: '−';
}

.landing__faq-body {
  padding: 0 var(--sp-md) var(--sp-md);
  font-size: 0.84rem;
  line-height: 1.9;
  color: rgba(240,232,245,0.72);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.landing__faq-body::before {
  content: 'A.';
  font-family: 'Courier New', monospace;
  color: var(--color-primary-dark);
  font-weight: 700;
  flex-shrink: 0;
}

/* about-method 末尾の注記 */
.landing__note {
  font-size: 0.78rem;
  color: rgba(240,232,245,0.42);
  text-align: center;
  margin-top: var(--sp-md);
  font-weight: 300;
}