/* Guide pages (/guides/*, /fr/guides/*) — same tokens, nav and footer as the homepage (index.html inline CSS). */
:root {
  --bg: #171B26; --card: #1F2433; --card2: #272D3E; --border: rgba(255,255,255,0.09);
  --text: #F5EBD8; --muted: #8B92A5; --muted2: #808898;
  --teal: #6FA1A3; --terra: #C76A3F; --alarm: #E04B30;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; line-height: 1.5; }
a { color: var(--teal); }

nav.topnav { padding: 24px 10px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; background: rgba(23,27,38,0.92); backdrop-filter: blur(10px); z-index: 50; border-bottom: 1px solid var(--border); }
.logo { font-family: var(--font-display); font-size: 19px; font-weight: 700; letter-spacing: -0.02em; color: var(--text); text-decoration: none; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.lang-toggle { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.lang-toggle a { color: var(--muted); padding: 6px 12px; font-size: 12.5px; font-weight: 700; text-decoration: none; }
.lang-toggle a.active { background: var(--text); color: var(--bg); }
.btn-primary { display: inline-block; background: var(--text); color: var(--bg); border: none; padding: 11px 20px; border-radius: 8px; font-size: 13.5px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.btn-primary:hover { opacity: 0.88; }
.btn-ghost { display: inline-block; background: transparent; border: 1px solid var(--border); color: var(--text); padding: 11px 20px; border-radius: 8px; font-size: 13.5px; font-weight: 600; text-decoration: none; }

main.article { max-width: 720px; margin: 0 auto; padding: 56px 24px 72px; }
.crumbs { font-size: 13px; color: var(--muted2); margin-bottom: 18px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.article h1 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.03em; font-size: clamp(30px, 4.6vw, 44px); line-height: 1.12; margin-bottom: 16px; }
.article .lede { color: var(--muted); font-size: 17px; margin-bottom: 30px; }
.article h2 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; font-size: 24px; margin: 40px 0 12px; }
.article h3 { font-family: var(--font-display); font-weight: 700; font-size: 18px; margin: 26px 0 8px; }
.article p, .article li { font-size: 16px; line-height: 1.7; color: #E6DDCB; }
.article p { margin-bottom: 14px; }
.article ul, .article ol { margin: 0 0 16px 22px; }
.article li { margin-bottom: 6px; }
.formula { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; font-family: var(--font-display); font-weight: 700; font-size: 16px; margin: 8px 0 18px; line-height: 1.5; }
.table-wrap { overflow-x: auto; margin: 8px 0 18px; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 700; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.04em; }
td.num, th.num { text-align: right; white-space: nowrap; }
tr.total td { font-weight: 700; color: var(--text); }
.note { background: rgba(255,255,255,0.03); border-left: 3px solid var(--terra); border-radius: 8px; padding: 14px 16px; font-size: 14.5px; color: var(--muted); margin: 18px 0; }
.cta { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 26px; margin: 44px 0 10px; }
.cta h2 { margin-top: 0; }
.cta p { color: var(--muted); }
.cta .btn-primary { margin-top: 6px; }
.related { margin-top: 30px; font-size: 15px; }
.meta-line { font-size: 13px; color: var(--muted2); margin-bottom: 26px; }

footer { padding: 48px 0 60px; text-align: center; color: var(--muted2); font-size: 13px; border-top: 1px solid var(--border); }
footer .foot-links { display: flex; gap: 20px; justify-content: center; margin-bottom: 16px; flex-wrap: wrap; }
footer .foot-links a { color: var(--muted); text-decoration: none; font-size: 13px; }

@media (max-width: 480px) {
  nav.topnav { padding: 16px 6px; }
  .logo { font-size: 16px; }
  .nav-right { flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
  .lang-toggle a { padding: 5px 9px; font-size: 11.5px; }
  .btn-primary, .btn-ghost { padding: 8px 12px; font-size: 12px; }
  main.article { padding-top: 36px; }
  table { font-size: 13.5px; }
}