/* article.css — reading-experience styles for resource docs */

.article {
  max-width: 720px;
  margin: 0 auto;
  padding-block: clamp(48px, 7vw, 96px);
  padding-inline: var(--shell-pad);
  font-size: 17px;
  line-height: 1.65;
}

.article .article-head {
  margin-bottom: clamp(40px, 5vw, 64px);
  padding-bottom: clamp(28px, 3vw, 40px);
  border-bottom: 1px solid var(--rule);
}
.article .article-head h1 {
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.article .article-head .sub {
  font-family: var(--f-display);
  font-style: italic;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.35;
  color: var(--ink-2);
  margin-bottom: 24px;
}
.article .article-head .meta-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.article h2 {
  font-size: clamp(28px, 3.6vw, 44px);
  margin: clamp(40px, 5vw, 72px) 0 18px;
  letter-spacing: -0.012em;
}
.article h2 .num {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 8px;
  font-style: normal;
}
.article h3 {
  font-size: clamp(20px, 2.2vw, 26px);
  margin: 32px 0 12px;
  font-family: var(--f-body);
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.article h4 {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 24px 0 10px;
}

.article p { margin: 0 0 1.1em; color: var(--ink); }
.article p.lede {
  font-family: var(--f-display);
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.35;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 1.4em;
}

.article ul, .article ol { padding-left: 22px; margin: 0 0 1.2em; }
.article li { margin-bottom: 0.5em; }
.article li::marker { color: var(--accent-2); }

.article code, .article .mono-inline {
  font-family: var(--f-mono);
  font-size: 0.88em;
  background: var(--bg-2);
  border: 1px solid var(--rule);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--ink);
}

.article pre {
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.6;
  background: color-mix(in oklab, var(--ink) 92%, var(--bg));
  color: color-mix(in oklab, var(--bg) 92%, transparent);
  border: 1px solid color-mix(in oklab, var(--ink) 80%, transparent);
  padding: 20px 24px;
  margin: 28px 0;
  overflow-x: auto;
  white-space: pre;
}
.article pre code { background: transparent; border: 0; padding: 0; color: inherit; font-size: 1em; }

.article blockquote {
  margin: 28px 0;
  padding: 22px 28px;
  border-left: 3px solid var(--accent-2);
  background: var(--bg-2);
  font-family: var(--f-display);
  font-style: italic;
  font-size: clamp(19px, 2vw, 22px);
  line-height: 1.4;
  color: var(--ink);
}
.article blockquote p:last-child { margin: 0; }
.article blockquote strong {
  font-family: var(--f-body);
  font-style: normal;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0;
  display: block;
  color: var(--accent-2);
  margin-bottom: 6px;
}

.article table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0 28px;
  font-size: 14px;
  line-height: 1.5;
}
.article table th, .article table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.article table th {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
  border-bottom: 1px solid var(--ink-2);
}
.article table tr:last-child td { border-bottom: 0; }
.article table td:first-child { font-weight: 500; color: var(--ink); white-space: nowrap; }
@media (max-width: 640px) {
  .article table td:first-child { white-space: normal; }
}

.article hr {
  border: 0;
  height: 1px;
  background: var(--rule);
  margin: 48px 0;
}

.article .callout {
  background: color-mix(in oklab, var(--accent) 15%, var(--bg-2));
  border: 1px solid color-mix(in oklab, var(--accent) 40%, var(--rule));
  padding: 18px 22px;
  margin: 28px 0;
  border-radius: 2px;
}
.article .callout p:last-child { margin: 0; }
.article .callout.warn {
  background: color-mix(in oklab, var(--accent-2) 12%, var(--bg-2));
  border-color: color-mix(in oklab, var(--accent-2) 40%, var(--rule));
}

.article .back-link {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
}
.article .back-link:hover { color: var(--accent-2); }
.article .back-link::before { content: "←"; }