/* =====================================================
   blog-post.css
   CleaningRatio – Blog article page
   Clean editorial layout (white background, calm reading)
===================================================== */

.article-page {
  padding-block: var(--space-4) var(--space-6);
}

.article-shell {
  max-width: 880px;
  margin: 0 auto 0 0;
}

.article-breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 18px;
}

.article-breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.article-breadcrumb a:hover {
  color: var(--color-text);
  text-decoration: none;
}

.article-header {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 18px;
}

.article-eyebrow {
  margin: 0 0 8px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.article-header h1 {
  margin: 0;
  line-height: 1.15;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--color-text);
}

.article-dek {
  margin: 12px 0 0;
  color: var(--color-text-muted);
  line-height: 1.7;
  font-size: 1rem;
  max-width: 68ch;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.article-section {
  padding-block: 12px;
}

.article-section h2 {
  margin: 0 0 10px;
  line-height: 1.25;
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  color: var(--color-text);
}

.article-section h3 {
  margin: 16px 0 6px;
  line-height: 1.35;
  font-size: 1.05rem;
  color: var(--color-text);
}

.article-section p {
  margin: 0 0 10px;
  line-height: 1.75;
  color: var(--color-text);
}

.article-section a {
  color: var(--color-primary);
  text-decoration: none;
}

.article-section a:hover {
  color: var(--color-primary-dark, var(--color-primary));
  text-decoration: none;
}

.article-section a:focus-visible {
  color: var(--color-primary-dark, var(--color-primary));
  text-decoration: none;
}

.article-list {
  margin: 0;
  padding-left: 18px;
}

.article-list li {
  margin-bottom: 8px;
  line-height: 1.7;
  color: var(--color-text);
}

.article-list-numbered {
  padding-left: 20px;
}

.article-note {
  margin-top: 10px;
  color: var(--color-text-muted);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 10px 0 6px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
  background: var(--color-bg);
}

.table-wrap th,
.table-wrap td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.table-wrap th {
  font-weight: 600;
  color: var(--color-text);
}

.table-wrap td {
  color: var(--color-text);
}

.table-wrap tbody tr:last-child td {
  border-bottom: none;
}

.article-guide-box {
  margin: 18px 0 6px;
  padding: 16px 18px;
  background: #f8fbff;
  border: 1px solid rgba(31, 79, 216, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.article-guide-box-title {
  margin: 0 0 6px;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.article-guide-box p {
  margin: 0;
  line-height: 1.7;
  color: var(--color-text);
}

.article-guide-box a {
  color: var(--color-primary);
  text-decoration: none;
}

.article-guide-box a:hover {
  text-decoration: none;
}

.article-related {
  border-top: 1px solid var(--color-border);
  margin-top: 8px;
  padding-top: 18px;
}

.article-related-links {
  display: grid;
  gap: 12px;
  margin-top: 10px;
}

.article-related-card {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

.article-related-card a {
  display: block;
  padding: 14px 16px;
  color: inherit;
  text-decoration: none;
}

.article-related-card h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.3;
  color: var(--color-text);
}

.article-related-card p {
  margin: 8px 0 0;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ---------- Mobile ---------- */
@media (max-width: 640px) {
  .article-page {
    padding-block: var(--space-3) var(--space-5);
  }

  .article-shell {
    padding-inline: 2px; /* tiny breathing room inside existing page shell */
  }

  .article-breadcrumb {
    margin-bottom: 14px;
    font-size: 0.88rem;
    flex-wrap: wrap;
    line-height: 1.4;
  }

  .article-header {
    margin-bottom: 14px;
    padding-bottom: 14px;
  }

  .table-wrap th,
  .table-wrap td {
    padding: 10px 12px;
    font-size: 0.9rem;
  }
}

@media (min-width: 760px) {
  .article-related-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}