/* Shared article styles — loaded by every blog/*.html */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--creme); color: var(--fg-1); font-family: var(--font-text); -webkit-font-smoothing: antialiased; }
html { scroll-behavior: smooth; }

.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 40px;
  background: color-mix(in oklch, var(--creme) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.nav.scrolled { border-bottom-color: var(--border-hair); background: color-mix(in oklch, var(--creme) 94%, transparent); }
.nav-brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 500; font-size: 15px; letter-spacing: 0.18em; color: var(--cacao); text-decoration: none; }
.nav-brand svg { width: 20px; height: 20px; }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-link { font-family: var(--font-text); font-size: 13px; letter-spacing: 0.08em; color: var(--cacao); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
.nav-link:hover { color: var(--cacao-800); }
.nav-cta { font-family: var(--font-text); font-weight: 500; font-size: 13px; padding: 10px 18px; background: var(--cacao); color: var(--creme); border: none; border-radius: var(--r-sm); text-decoration: none; transition: all var(--dur-fast) var(--ease-out); display: inline-flex; align-items: center; gap: 6px; }
.nav-cta:hover { background: var(--cacao-700); transform: translateY(-1px); }
@media (max-width: 720px) { .nav { padding: 16px 20px; } .nav-links { gap: 18px; } .nav-links .nav-link:not(.keep) { display: none; } }

.breadcrumbs { max-width: 820px; margin: 0 auto; padding: 140px 32px 0; font-family: var(--font-mono); font-size: 12px; color: var(--moka); letter-spacing: 0.04em; }
.breadcrumbs a { color: var(--moka); text-decoration: none; }
.breadcrumbs a:hover { color: var(--cacao); }
.breadcrumbs .sep { margin: 0 8px; opacity: 0.5; }

.article-head { max-width: 820px; margin: 0 auto; padding: 32px 32px 40px; }
.article-category { display: inline-block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--moka); padding: 5px 12px; border: 1px solid var(--border); border-radius: var(--r-full); margin-bottom: 24px; }
.article-head h1 { margin: 0 0 24px; font-family: var(--font-display); font-weight: 500; font-size: clamp(32px, 4.6vw, 56px); letter-spacing: -0.022em; line-height: 1.08; color: var(--cacao); }
.article-deck { margin: 0 0 28px; font-size: 19px; line-height: 1.55; color: var(--fg-1); max-width: 62ch; }
.article-meta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; font-family: var(--font-mono); font-size: 12px; color: var(--moka); border-top: 1px solid var(--border-hair); border-bottom: 1px solid var(--border-hair); padding: 16px 0; }
.article-meta .dot { opacity: 0.5; }

.article-body { max-width: 720px; margin: 0 auto; padding: 20px 32px 80px; font-size: 17px; line-height: 1.75; color: var(--fg-1); }
.article-body > p { margin: 0 0 22px; }
.article-body h2 { margin: 56px 0 18px; font-family: var(--font-display); font-weight: 500; font-size: clamp(26px, 3.2vw, 34px); letter-spacing: -0.015em; line-height: 1.2; color: var(--cacao); }
.article-body h3 { margin: 40px 0 14px; font-family: var(--font-display); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; color: var(--cacao); }
.article-body h2:first-child, .article-body h3:first-child { margin-top: 0; }
.article-body ul, .article-body ol { margin: 0 0 24px; padding-left: 22px; }
.article-body li { margin-bottom: 8px; }
.article-body strong { color: var(--cacao); font-weight: 600; }
.article-body a { color: var(--cacao); text-underline-offset: 3px; text-decoration-thickness: 1px; }
.article-body a:hover { color: var(--cacao-800); }
.article-body blockquote { margin: 32px 0; padding: 20px 28px; border-left: 3px solid var(--cacao); background: var(--creme-50); border-radius: 0 var(--r-sm) var(--r-sm) 0; font-size: 18px; line-height: 1.55; color: var(--cacao-800); font-style: italic; }
.article-body code { font-family: var(--font-mono); font-size: 0.9em; background: color-mix(in oklch, var(--cacao) 8%, transparent); padding: 2px 6px; border-radius: var(--r-xs); }
.article-body pre { background: var(--cafe-noir); color: var(--creme); padding: 20px 22px; border-radius: var(--r-sm); overflow-x: auto; font-family: var(--font-mono); font-size: 14px; line-height: 1.55; margin: 0 0 24px; }
.article-body pre code { background: none; padding: 0; color: inherit; }
.article-body table { width: 100%; border-collapse: collapse; margin: 0 0 28px; font-size: 15px; }
.article-body th, .article-body td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.article-body th { font-family: var(--font-display); font-weight: 500; color: var(--cacao); background: var(--creme-50); }
.article-body hr { border: none; border-top: 1px solid var(--border); margin: 48px 0; }
.callout { margin: 32px 0; padding: 22px 26px; background: var(--cacao); color: var(--creme); border-radius: var(--r-md); }
.callout strong { color: var(--creme); }
.callout p { margin: 0; font-size: 16px; line-height: 1.55; }

.key-takeaways { margin: 32px 0; padding: 24px 28px; background: var(--creme-50); border: 1px solid var(--border); border-radius: var(--r-md); }
.key-takeaways h3 { margin: 0 0 14px; font-family: var(--font-text); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.22em; color: var(--moka); }
.key-takeaways ul { margin: 0; padding-left: 20px; }
.key-takeaways li { font-size: 15px; line-height: 1.55; margin-bottom: 6px; }

.cta-box { margin: 48px auto 24px; padding: 36px 32px; background: var(--cacao); color: var(--creme); border-radius: var(--r-lg); text-align: center; max-width: 720px; }
.cta-box h2 { margin: 0 0 12px; color: var(--creme); font-family: var(--font-display); font-weight: 500; font-size: 26px; }
.cta-box p { margin: 0 0 20px; color: color-mix(in oklch, var(--creme) 80%, transparent); font-size: 15px; }
.cta-box a { display: inline-block; background: var(--creme); color: var(--cacao); font-family: var(--font-text); font-weight: 500; font-size: 15px; padding: 12px 22px; border-radius: var(--r-sm); text-decoration: none; transition: all var(--dur-fast) var(--ease-out); }
.cta-box a:hover { background: #fff; transform: translateY(-1px); }

.related { max-width: 1080px; margin: 0 auto; padding: 40px 32px 120px; }
.related h2 { margin: 0 0 28px; font-family: var(--font-display); font-weight: 500; font-size: 28px; color: var(--cacao); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 820px) { .related-grid { grid-template-columns: 1fr; } }
.related-card { display: block; padding: 20px 22px; background: var(--creme-50); border: 1px solid var(--border); border-radius: var(--r-md); text-decoration: none; color: inherit; transition: all var(--dur-base) var(--ease-out); }
.related-card:hover { box-shadow: var(--sh-md); transform: translateY(-2px); }
.related-card .cat { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--moka); }
.related-card h3 { margin: 8px 0 0; font-family: var(--font-display); font-weight: 600; font-size: 16px; line-height: 1.3; color: var(--cacao); }

.footer { background: var(--cafe-noir); color: color-mix(in oklch, var(--creme) 55%, transparent); padding: 32px 40px; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-text); font-size: 12px; letter-spacing: 0.08em; gap: 24px; flex-wrap: wrap; border-top: 1px solid color-mix(in oklch, var(--creme) 10%, transparent); }
.footer .dot { opacity: 0.4; margin: 0 6px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: color-mix(in oklch, var(--creme) 70%, transparent); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
.footer-links a:hover { color: var(--creme); }