/* css/article.css — 解説記事ページの共通スタイル（about-method, guide/*） */

.article-page {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--sp-md);
}

.article-page__breadcrumb {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: var(--sp-md);
  letter-spacing: 0.04em;
}

.article-page__breadcrumb a {
  color: var(--color-primary-dark);
}

.article-page__label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--color-primary-dark);
  text-align: center;
  margin-bottom: var(--sp-sm);
}

.article-page__title {
  font-size: 1.5rem;
  font-weight: 900;
  text-align: center;
  margin-bottom: var(--sp-sm);
  line-height: 1.5;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, #ffffff, oklch(82% 0.16 338));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.article-page__subtitle {
  text-align: center;
  font-size: 0.9rem;
  font-weight: 400;
  color: rgba(240,232,245,0.55);
  margin-bottom: var(--sp-lg);
  line-height: 1.7;
  letter-spacing: 0.04em;
}

.article-page__lead {
  background: var(--color-surface-bright);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-md);
  margin-bottom: var(--sp-lg);
  font-size: 0.92rem;
  line-height: 1.95;
  color: var(--color-text);
}

.article-page__section {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
  margin-bottom: var(--sp-md);
  border: 1px solid var(--color-border);
}

.article-page__section h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: var(--sp-sm);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-page__section h2::before {
  content: '✦';
  color: var(--color-primary);
  font-size: 0.9rem;
}

.article-page__section h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--sp-md);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.article-page__section p {
  font-size: 0.9rem;
  line-height: 1.95;
  color: var(--color-text);
  margin-bottom: var(--sp-sm);
}

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

.article-page__section strong {
  color: var(--color-primary-dark);
  font-weight: 700;
}

.article-page__section ul,
.article-page__section ol {
  padding-left: var(--sp-lg);
  margin: var(--sp-sm) 0;
}

.article-page__section li {
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 4px;
}

/* 五行・陰陽カード一覧 */
.article-page__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-sm);
  margin: var(--sp-md) 0;
}

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

@media (min-width: 720px) {
  .article-page__cards--five {
    grid-template-columns: repeat(5, 1fr);
  }
}

.article-page__card {
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(219,89,151,0.18);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
}

.article-page__card-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}

.article-page__card-keywords {
  font-size: 0.72rem;
  color: rgba(240,232,245,0.42);
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}

.article-page__card-desc {
  font-size: 0.82rem;
  line-height: 1.8;
  color: rgba(240,232,245,0.78);
}

/* タイプコードの分解表示 */
.article-page__codebox {
  background: rgba(255,255,255,0.035);
  border: 1px dashed rgba(219,89,151,0.45);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
  text-align: center;
  margin: var(--sp-md) 0;
}

.article-page__codebox-code {
  font-family: 'Courier New', monospace;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: var(--color-primary-dark);
  margin-bottom: var(--sp-sm);
}

.article-page__codebox-legend {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  font-size: 0.72rem;
  color: rgba(240,232,245,0.6);
}

.article-page__codebox-legend span {
  display: block;
  padding-top: 4px;
  border-top: 1px solid rgba(219,89,151,0.25);
}

/* CTA */
.article-page__cta {
  text-align: center;
  margin: var(--sp-xl) 0 var(--sp-lg);
}

.article-page__cta-btn {
  display: inline-block;
  padding: 14px 28px;
  background: linear-gradient(135deg, oklch(58% 0.26 338), oklch(72% 0.22 338));
  color: #fff;
  font-weight: 700;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  box-shadow: 0 8px 28px rgba(219,89,151,0.32);
}

.article-page__cta-btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
  transition: transform 0.2s;
}

.article-page__cta-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: var(--sp-sm);
}

.article-page__related {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
  margin-top: var(--sp-lg);
}

.article-page__related h2 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: var(--sp-sm);
  letter-spacing: 0.04em;
}

.article-page__related ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.article-page__related a {
  display: inline-block;
  font-size: 0.88rem;
  color: var(--color-primary-dark);
}

.article-page__back {
  text-align: center;
  margin-top: var(--sp-lg);
}

.article-page__back a {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.article-page__note {
  font-size: 0.78rem;
  color: rgba(240,232,245,0.42);
  text-align: center;
  margin-top: var(--sp-md);
  font-weight: 300;
  line-height: 1.8;
}

@media (min-width: 720px) {
  .article-page__title { font-size: 1.9rem; }
}