/* kdpmetric.com — Articles section. Shares tokens with styles.css (:root). */

/* ---------- article body (lifted from guide.html's proven .doc styles) ---- */
.doc { max-width: 860px; margin: 0 auto; padding: 40px 24px 90px; }
.doc h1 { font-size: 36px; margin-bottom: 6px; }
.doc .updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.doc h2 { font-size: 24px; margin: 44px 0 12px; text-align: left; scroll-margin-top: 80px; }
.doc h3 { font-size: 18px; margin: 26px 0 8px; text-align: left; }
.doc p, .doc li { font-size: 16.5px; color: var(--text); line-height: 1.7; margin-bottom: 14px; }
.doc ul, .doc ol { padding-left: 24px; margin-bottom: 14px; }
.doc li { margin-bottom: 7px; }
.doc strong { color: var(--ink); }
.doc table { width: 100%; border-collapse: collapse; margin: 18px 0 24px; font-size: 15px; }
.doc th, .doc td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; }
.doc th { background: var(--bg-soft); color: var(--ink); font-weight: 700; }
.doc tbody tr:nth-child(even) { background: #fbfcfe; }
.doc code { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; font-size: 14px; }

.art-crumb { font-size: 13.5px; color: var(--muted); margin-bottom: 14px; }
.art-crumb a { color: var(--muted); text-decoration: none; }
.art-crumb a:hover { color: var(--orange); }
.art-crumb span { margin: 0 4px; }

.toc { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; margin: 0 0 36px; }
.toc h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 0 0 10px; }
.toc ol { columns: 2; column-gap: 32px; margin: 0; padding-left: 20px; }
.toc li { font-size: 15px; }
.toc a { color: var(--text); text-decoration: none; }
.toc a:hover { color: var(--orange); text-decoration: underline; }
@media (max-width: 620px) { .toc ol { columns: 1; } }

figure.shot { margin: 20px 0 30px; }
figure.shot img { width: 100%; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08); display: block; }
figure.shot figcaption { font-size: 13.5px; color: var(--muted); margin-top: 8px; text-align: center; }
.art-hero { margin-top: 4px; }

.callout { border-left: 4px solid var(--orange); background: rgba(245, 135, 31, 0.07); border-radius: 0 10px 10px 0; padding: 12px 16px; margin: 18px 0; font-size: 15px; }
.callout.tip { border-left-color: #16a34a; background: rgba(22, 163, 74, 0.07); }

/* ---------- CTA block ------------------------------------------------------ */
.art-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  background: linear-gradient(135deg, rgba(43, 111, 224, 0.07), rgba(245, 135, 31, 0.07));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 26px; margin: 36px 0;
}
.art-cta-text { display: flex; flex-direction: column; gap: 4px; max-width: 480px; }
.art-cta-text b { color: var(--ink); font-size: 17px; }
.art-cta-text span { color: var(--muted); font-size: 14.5px; line-height: 1.55; }
.art-cta .btn { flex-shrink: 0; }

/* ---------- related reading ------------------------------------------------ */
.rel { margin-top: 44px; }
.rel-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin-top: 14px; }
.rel-card {
  display: flex; flex-direction: column; gap: 6px; text-decoration: none;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; transition: transform 0.14s ease, box-shadow 0.14s ease;
}
.rel-card:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(22, 33, 58, 0.10); }
.rel-cat { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: #b9600a; }
.rel-title { color: var(--ink); font-weight: 650; font-size: 15.5px; line-height: 1.35; }

/* ---------- hub page -------------------------------------------------------- */
.hub-hero {
  text-align: center; padding: 56px 24px 36px;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(245, 135, 31, 0.10), transparent 60%),
    radial-gradient(1000px 600px at 15% 0%, rgba(43, 111, 224, 0.16), transparent 55%),
    linear-gradient(180deg, var(--bg-soft), var(--bg) 85%);
}
.hub-hero h1 { font-size: 40px; margin-bottom: 12px; }
.hub-hero p { color: var(--muted); font-size: 17px; max-width: 560px; margin: 0 auto 26px; }
@media (max-width: 640px) { .hub-hero h1 { font-size: 30px; } }

.hub-chips { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.hub-chip {
  font-size: 13.5px; font-weight: 600; color: var(--text); text-decoration: none;
  background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 7px 15px;
  transition: border-color 0.12s ease, color 0.12s ease, background 0.12s ease;
}
.hub-chip:hover { border-color: var(--orange); color: #b9600a; }
.hub-chip.active { background: var(--ink); border-color: var(--ink); color: #fff; }

.hub-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px;
  max-width: 1080px; margin: 0 auto; padding: 28px 24px 90px;
}
.hub-card {
  display: flex; flex-direction: column; text-decoration: none; overflow: hidden;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  transition: transform 0.14s ease, box-shadow 0.14s ease;
}
.hub-card:hover { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(22, 33, 58, 0.12); }
.hub-thumb { aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-soft); border-bottom: 1px solid var(--border); }
.hub-thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.hub-body { display: flex; flex-direction: column; gap: 8px; padding: 18px 20px 20px; flex: 1; }
.hub-cat { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: #b9600a; }
.hub-body h2 { font-size: 19px; line-height: 1.3; margin: 0; }
.hub-body p { color: var(--muted); font-size: 14.5px; line-height: 1.55; margin: 0; flex: 1; }
.hub-date { color: var(--muted); font-size: 12.5px; }