/* Article page styles for Direction A — Refined Editorial */

.article-head { padding: 96px 0 48px; border-bottom: 1px solid var(--border-subtle); }
.article-head .wrap { max-width: 880px; }
.article-head .breadcrumbs { display: flex; gap: 8px; align-items: center; font-family: var(--font-mono); font-size: 12px; color: var(--fg-3); margin-bottom: 32px; letter-spacing: 0.04em; text-transform: uppercase; }
.article-head .breadcrumbs a { color: var(--horus-indigo); text-decoration: none; }
.article-head .breadcrumbs a:hover { text-decoration: underline; }
.article-head .breadcrumbs span { color: var(--fg-4); }
.article-head h1 { font-family: var(--font-display); font-size: clamp(40px, 5vw, 64px); font-weight: 700; line-height: 1.05; letter-spacing: -0.025em; margin: 0 0 24px; color: var(--fg-1); text-wrap: balance; }
.article-head .lede { font-size: 22px; line-height: 1.55; color: var(--fg-2); max-width: 60ch; margin: 0 0 32px; }
.article-head .meta-row { display: flex; gap: 24px; align-items: center; font-size: 13px; color: var(--fg-3); }
.article-head .meta-row .author { display: flex; gap: 10px; align-items: center; }
.article-head .meta-row .avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--horus-lavender); color: var(--horus-indigo-800); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 12px; }
.article-head .meta-row .name { font-weight: 600; color: var(--fg-2); }
.article-head .meta-row .sep { color: var(--fg-4); }
.article-head .meta-row .read-time { font-family: var(--font-mono); }

/* Body */
.article-body { padding: 64px 0 96px; }
.article-body .wrap { max-width: 880px; display: grid; grid-template-columns: 220px 1fr; gap: 48px; align-items: flex-start; }
.article-body .toc { position: sticky; top: 96px; }
.article-body .toc .toc-label { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
.article-body .toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; display: flex; flex-direction: column; gap: 6px; }
.article-body .toc li { counter-increment: toc; font-size: 13px; line-height: 1.45; }
.article-body .toc a { display: flex; gap: 10px; color: var(--fg-2); text-decoration: none; padding: 6px 8px; border-radius: 6px; border-left: 2px solid transparent; transition: all 150ms var(--ease-out); }
.article-body .toc a::before { content: counter(toc, decimal-leading-zero); font-family: var(--font-mono); font-size: 11px; color: var(--fg-4); padding-top: 2px; }
.article-body .toc a:hover { background: var(--horus-ice); color: var(--fg-1); border-left-color: var(--horus-indigo); }

.article-body article { font-size: 17px; line-height: 1.7; color: var(--fg-2); }
.article-body article > * + * { margin-top: 24px; }
.article-body article > h2 + *, .article-body article > h3 + * { margin-top: 16px; }

.article-body article h2 { font-family: var(--font-display); font-size: 32px; font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; color: var(--fg-1); margin-top: 56px; padding-top: 8px; scroll-margin-top: 80px; }
.article-body article h2:first-child { margin-top: 0; }
.article-body article h3 { font-family: var(--font-display); font-size: 22px; font-weight: 600; line-height: 1.25; letter-spacing: -0.01em; color: var(--fg-1); margin-top: 40px; scroll-margin-top: 80px; }
.article-body article p { margin: 0; }
.article-body article a { color: var(--horus-indigo-700); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.article-body article a:hover { color: var(--horus-indigo-800); text-decoration-thickness: 2px; }
.article-body article strong { color: var(--fg-1); font-weight: 600; }
.article-body article ul, .article-body article ol { padding-left: 22px; margin: 0; }
.article-body article ul li, .article-body article ol li { margin-bottom: 10px; padding-left: 4px; }
.article-body article ul li::marker { color: var(--horus-indigo); }
.article-body article blockquote { border-left: 3px solid var(--horus-indigo); padding: 4px 0 4px 24px; font-family: var(--font-display); font-size: 22px; font-weight: 500; line-height: 1.35; letter-spacing: -0.01em; color: var(--fg-1); font-style: italic; margin: 32px 0; }
.article-body article hr { border: 0; border-top: 1px solid var(--border-subtle); margin: 48px 0; }

/* Callouts */
.callout { border: 1px solid var(--border-subtle); border-radius: 14px; padding: 24px 28px; background: var(--horus-ice); margin: 32px 0; display: grid; grid-template-columns: 32px 1fr; gap: 16px; }
.callout .ic { width: 28px; height: 28px; border-radius: 8px; background: var(--horus-indigo); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-weight: 700; font-size: 14px; }
.callout .body { font-size: 15px; line-height: 1.6; color: var(--fg-2); }
.callout .body strong { display: block; color: var(--fg-1); font-weight: 600; margin-bottom: 4px; font-size: 15px; }
.callout.warn { background: #FEF3C7; border-color: #FDE68A; }
.callout.warn .ic { background: #D97706; }

/* Inline data table */
.article-body article table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 32px 0; font-variant-numeric: tabular-nums; }
.article-body article thead th { background: var(--neutral-50); padding: 12px 16px; text-align: left; font-weight: 600; color: var(--fg-1); border-bottom: 1px solid var(--border-default); font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; }
.article-body article tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border-subtle); color: var(--fg-2); }
.article-body article tbody td.num { font-family: var(--font-mono); text-align: right; }
.article-body article tbody tr:hover { background: var(--neutral-50); }

/* FAQ block (also used for FAQPage schema) */
.faq-block { margin: 48px 0 0; }
.faq-block h2 { margin-bottom: 8px; }
.faq-block details { border-top: 1px solid var(--border-subtle); padding: 18px 0; cursor: pointer; }
.faq-block details:last-child { border-bottom: 1px solid var(--border-subtle); }
.faq-block summary { font-family: var(--font-display); font-size: 18px; font-weight: 600; color: var(--fg-1); list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq-block summary::-webkit-details-marker { display: none; }
.faq-block summary::after { content: "+"; font-family: var(--font-mono); font-size: 22px; color: var(--horus-indigo); font-weight: 400; transition: transform 200ms var(--ease-out); }
.faq-block details[open] summary::after { content: "−"; }
.faq-block details > p { margin-top: 12px; font-size: 15px; line-height: 1.6; color: var(--fg-2); }

/* Related articles */
.related { padding: 64px 0; background: var(--horus-ice); border-top: 1px solid var(--border-subtle); }
.related .wrap { max-width: 880px; }
.related .label { font-family: var(--font-mono); font-size: 12px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 24px; }
.related h2 { font-family: var(--font-display); font-size: 28px; font-weight: 700; letter-spacing: -0.015em; margin: 0 0 32px; }
.related-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.related-card { background: #fff; border: 1px solid var(--border-subtle); border-radius: 12px; padding: 20px; text-decoration: none; color: inherit; transition: all 200ms var(--ease-out); display: flex; flex-direction: column; gap: 6px; }
.related-card:hover { border-color: var(--horus-indigo); transform: translateY(-2px); box-shadow: var(--shadow-md); text-decoration: none; }
.related-card h3 { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; margin: 0; color: var(--fg-1); }
.related-card p { font-size: 13px; line-height: 1.5; color: var(--fg-2); margin: 0; }
.related-card .arrow { font-family: var(--font-mono); font-size: 11px; color: var(--horus-indigo); margin-top: 4px; }

/* Article CTA */
.article-cta { padding: 80px 0; background: var(--bg-page); border-top: 1px solid var(--border-subtle); }
.article-cta .wrap { max-width: 880px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.article-cta h2 { font-family: var(--font-display); font-size: 38px; font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 16px; }
.article-cta h2 em { color: var(--horus-indigo); font-style: italic; }
.article-cta p { font-size: 16px; line-height: 1.55; color: var(--fg-2); margin: 0 0 24px; }
.article-cta .ctas { display: flex; gap: 12px; }

@media (max-width: 920px) {
  .article-body .wrap { grid-template-columns: 1fr; }
  .article-body .toc { position: static; }
  .related-grid { grid-template-columns: 1fr; }
  .article-cta .wrap { grid-template-columns: 1fr; }
}

/* ===== Dark mode overrides ===== */
/* The shared design system uses --fg-1, --bg-page, --horus-ice etc. as light-mode-only
   tokens. In direction-c the body bg is driven by --c-page (theme-aware). These rules
   map the article surface and text colors to the dark theme. */
[data-theme="dark"] .article-head { border-bottom-color: rgba(255,255,255,0.08); }
[data-theme="dark"] .article-head .breadcrumbs { color: rgba(255,255,255,0.55); }
[data-theme="dark"] .article-head .breadcrumbs a { color: var(--horus-lavender); }
[data-theme="dark"] .article-head .breadcrumbs span { color: rgba(255,255,255,0.35); }
[data-theme="dark"] .article-head h1 { color: #fff; }
[data-theme="dark"] .article-head .lede { color: rgba(255,255,255,0.78); }
[data-theme="dark"] .article-head .meta-row { color: rgba(255,255,255,0.55); }
[data-theme="dark"] .article-head .meta-row .name { color: rgba(255,255,255,0.78); }
[data-theme="dark"] .article-head .meta-row .sep { color: rgba(255,255,255,0.3); }

[data-theme="dark"] .article-body .toc .toc-label { color: rgba(255,255,255,0.55); }
[data-theme="dark"] .article-body .toc a { color: rgba(255,255,255,0.72); }
[data-theme="dark"] .article-body .toc a::before { color: rgba(255,255,255,0.35); }
[data-theme="dark"] .article-body .toc a:hover { background: rgba(175,190,255,0.06); color: #fff; border-left-color: var(--horus-lavender); }

[data-theme="dark"] .article-body article { color: rgba(255,255,255,0.78); }
[data-theme="dark"] .article-body article h2,
[data-theme="dark"] .article-body article h3 { color: #fff; }
[data-theme="dark"] .article-body article strong { color: #fff; }
[data-theme="dark"] .article-body article a { color: var(--horus-lavender); }
[data-theme="dark"] .article-body article a:hover { color: #C8D1FF; }
[data-theme="dark"] .article-body article blockquote { color: #fff; border-left-color: var(--horus-lavender); }
[data-theme="dark"] .article-body article hr { border-top-color: rgba(255,255,255,0.10); }
[data-theme="dark"] .article-body article ul li::marker { color: var(--horus-lavender); }

[data-theme="dark"] .article-body article table { color: rgba(255,255,255,0.78); }
[data-theme="dark"] .article-body article thead th { background: rgba(255,255,255,0.04); color: #fff; border-bottom-color: rgba(255,255,255,0.12); }
[data-theme="dark"] .article-body article tbody td { color: rgba(255,255,255,0.78); border-bottom-color: rgba(255,255,255,0.08); }
[data-theme="dark"] .article-body article tbody tr:hover { background: rgba(255,255,255,0.04); }

[data-theme="dark"] .callout { background: rgba(175,190,255,0.06); border-color: rgba(255,255,255,0.10); }
[data-theme="dark"] .callout .body { color: rgba(255,255,255,0.78); }
[data-theme="dark"] .callout .body strong { color: #fff; }
/* Warning callout keeps its hardcoded yellow bg but needs locked-dark text in both themes */
.callout.warn .body, .callout.warn .body strong { color: #78350F; }
[data-theme="dark"] .callout.warn { background: #FEF3C7; border-color: #FDE68A; }
[data-theme="dark"] .callout.warn .body, [data-theme="dark"] .callout.warn .body strong { color: #78350F; }

[data-theme="dark"] .faq-block details { border-top-color: rgba(255,255,255,0.10); }
[data-theme="dark"] .faq-block details:last-child { border-bottom-color: rgba(255,255,255,0.10); }
[data-theme="dark"] .faq-block summary { color: #fff; }
[data-theme="dark"] .faq-block summary::after { color: var(--horus-lavender); }
[data-theme="dark"] .faq-block details > p { color: rgba(255,255,255,0.78); }

[data-theme="dark"] .related { background: rgba(175,190,255,0.04); border-top-color: rgba(255,255,255,0.08); }
[data-theme="dark"] .related .label { color: rgba(255,255,255,0.55); }
[data-theme="dark"] .related h2 { color: #fff; }
[data-theme="dark"] .related-card { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.10); }
[data-theme="dark"] .related-card h3 { color: #fff; }
[data-theme="dark"] .related-card p { color: rgba(255,255,255,0.72); }
[data-theme="dark"] .related-card .arrow { color: var(--horus-lavender); }
[data-theme="dark"] .related-card:hover { border-color: var(--horus-lavender); }

[data-theme="dark"] .article-cta { background: transparent; border-top-color: rgba(255,255,255,0.08); }
[data-theme="dark"] .article-cta h2 { color: #fff; }
[data-theme="dark"] .article-cta h2 em { color: var(--horus-lavender); }
[data-theme="dark"] .article-cta p { color: rgba(255,255,255,0.78); }