/* Learn / editorial article pages — shared styles */

.article {
  padding: 140px 0 80px;
  max-width: 800px;
  margin: 0 auto;
}
.article .crumbs { font-size: .85rem; color: var(--text-muted); margin-bottom: 24px; }
.article .crumbs a { color: var(--primary); text-decoration: none; }
.article .crumbs a:hover { text-decoration: underline; }
.article h1 { font-size: 2.4rem; font-weight: 900; line-height: 1.15; margin-bottom: 12px; }
.article .article-meta { color: var(--text-muted); font-size: .9rem; margin-bottom: 40px; }
.article .lede { font-size: 1.1rem; color: var(--text-secondary); line-height: 1.8; margin-bottom: 32px; }
.article h2 { font-size: 1.45rem; font-weight: 800; margin-top: 44px; margin-bottom: 14px; }
.article h3 { font-size: 1.1rem; font-weight: 700; margin-top: 26px; margin-bottom: 10px; }
.article p, .article li { font-size: .98rem; color: var(--text-muted); line-height: 1.85; margin-bottom: 14px; }
.article ul, .article ol { padding-left: 22px; margin-bottom: 16px; }
.article ul li { list-style: disc; margin-bottom: 8px; }
.article ol li { list-style: decimal; margin-bottom: 8px; }
.article a { color: var(--primary); text-decoration: underline; }
.article strong { color: var(--text); }
.article .table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 18px 0; }
.article table { width: 100%; border-collapse: collapse; min-width: 520px; }
.article th, .article td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: .9rem; }
.article th { color: var(--text); font-weight: 600; background: var(--bg-card2); }
.article td { color: var(--text-muted); }
.article .callout {
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin: 22px 0;
}
.article .callout p { margin-bottom: 0; }
.article .disclaimer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: .82rem;
  color: var(--text-muted);
}

/* Learn hub grid */
.learn-hub { padding: 140px 0 80px; max-width: var(--max-w); margin: 0 auto; }
.learn-hub h1 { font-size: 2.6rem; font-weight: 900; margin-bottom: 10px; }
.learn-hub .sub { color: var(--text-muted); font-size: 1.05rem; line-height: 1.7; max-width: 720px; margin-bottom: 44px; }
.learn-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.learn-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
}
.learn-card:hover { transform: translateY(-3px); border-color: var(--primary); }
.learn-card .tag { display: inline-block; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--primary); margin-bottom: 10px; }
.learn-card h2 { font-size: 1.15rem; font-weight: 800; color: var(--text); margin-bottom: 8px; line-height: 1.35; }
.learn-card p { font-size: .9rem; color: var(--text-muted); line-height: 1.65; }
.learn-card .read-more { display: inline-block; margin-top: 12px; font-size: .85rem; font-weight: 600; color: var(--primary); }

/* Simple content pages (about / contact) reuse .article */
.contact-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin: 18px 0;
}
.contact-block h3 { margin-top: 0 !important; }
.contact-block p { margin-bottom: 4px; }

.notfound { padding: 140px 0 80px; max-width: var(--max-w); margin: 0 auto; }
.notfound .crumbs { font-size: .85rem; color: var(--text-muted); margin-bottom: 20px; }
.notfound .crumbs a { color: var(--primary); text-decoration: none; }
.notfound .crumbs a:hover { text-decoration: underline; }
.notfound__eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--primary); margin-bottom: 10px;
}
.notfound h1 { font-size: 2.6rem; font-weight: 900; line-height: 1.15; margin-bottom: 12px; }
.notfound .sub { color: var(--text-muted); font-size: 1.05rem; line-height: 1.7; max-width: 720px; margin-bottom: 28px; }
.notfound__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 48px; }
.notfound__section-title { font-size: 1.15rem; font-weight: 800; margin-bottom: 16px; }
.notfound .learn-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

/* Feature catalog page */
.feat-hub { padding: 140px 0 80px; max-width: var(--max-w); margin: 0 auto; }
.feat-hub h1 { font-size: 2.6rem; font-weight: 900; line-height: 1.15; margin-bottom: 12px; }
.feat-hub .sub { color: var(--text-muted); font-size: 1.05rem; line-height: 1.7; max-width: 760px; margin-bottom: 28px; }
.feat-toc { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 48px; }
.feat-toc a {
  font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  padding: 8px 12px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text-secondary); text-decoration: none;
}
.feat-toc a:hover { border-color: var(--primary); color: var(--primary); }
.feat-section { margin-bottom: 56px; scroll-margin-top: 96px; }
.feat-section h2 { font-size: 1.55rem; font-weight: 800; margin-bottom: 10px; }
.feat-section .lede { color: var(--text-muted); line-height: 1.7; max-width: 820px; margin-bottom: 22px; }
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 16px; }
.feat-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--card-shadow);
}
.feat-card h3 { font-size: 1.02rem; font-weight: 800; margin-bottom: 8px; color: var(--text); }
.feat-card p { font-size: .9rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 10px; }
.feat-card ul { list-style: none; display: grid; gap: 6px; }
.feat-card ul li { position: relative; padding-left: 18px; font-size: .86rem; line-height: 1.55; color: var(--text-secondary); }
.feat-card ul li::before { content: ""; position: absolute; left: 0; top: 7px; width: 7px; height: 7px; border-radius: 50%; background: var(--primary-l, var(--primary)); }
.feat-card a { color: var(--primary); font-weight: 600; text-decoration: none; font-size: .86rem; }
.feat-card a:hover { text-decoration: underline; }
.feat-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-card); margin-top: 8px; }
.feat-table { width: 100%; border-collapse: collapse; min-width: 560px; }
.feat-table th, .feat-table td { text-align: left; padding: 12px 16px; font-size: .88rem; border-bottom: 1px solid var(--border); }
.feat-table th { font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); }
.feat-table tr:last-child td { border-bottom: none; }
.feat-table td:first-child { font-weight: 700; color: var(--text); white-space: nowrap; }
.feat-cta { margin-top: 36px; padding: 28px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--bg-card); text-align: center; }
.feat-cta h2 { font-size: 1.4rem; margin-bottom: 8px; }
.feat-cta p { color: var(--text-muted); margin-bottom: 18px; }

@media (max-width: 640px) {
  .article { padding: 120px 0 60px; }
  .article h1 { font-size: 1.8rem; }
  .learn-hub h1 { font-size: 2rem; }
  .feat-hub { padding: 120px 0 60px; }
  .feat-hub h1 { font-size: 2rem; }
  .notfound { padding: 120px 0 60px; }
  .notfound h1 { font-size: 2rem; }
}