/* RetireOdds — shared information architecture (header nav + footer).
 *
 * Linked from every public marketing page (landing, calculator, pricing, about,
 * methodology, help, privacy, terms) and the generated /learn pages. It owns the
 * unified top-nav and the multi-column site footer ONLY — page-specific layout
 * lives in each page's own <style> block or /css/styles.css.
 *
 * Relies on the design tokens (--bg, --accent, --border, --text, --text-2,
 * --panel, --accent-soft, --shadow …) defined by each page / css/styles.css.
 * Classes are namespaced under .site-nav / .site-footer so they never collide
 * with a page's own .nav / footer rules.
 */

/* ───────────────────────── Header nav ───────────────────────── */

header.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-nav .site-nav-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 22px;
}
.site-nav .site-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
}
.site-nav .site-brand .mark {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.site-nav .site-brand .mark img,
.site-footer .foot-brand .mark img {
  display: block;
  width: 100%;
  height: 100%;
}

.site-nav .site-nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.site-nav .site-nav-actions a.site-link {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-2);
  text-decoration: none;
  white-space: nowrap;
}
.site-nav .site-nav-actions a.site-link:hover { color: var(--text); }

/* primary "Get started" pill — self-contained so it renders without .btn */
.site-nav .site-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 18px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  background: var(--accent);
  color: #fff;
  border: 1px solid transparent;
}
.site-nav .site-cta:hover { filter: brightness(1.05); }

.site-nav a.site-link:focus-visible,
.site-nav .site-cta:focus-visible,
.site-nav .site-burger:focus-visible,
.site-mobile-menu a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* hamburger — hidden on desktop, shown ≤860px */
.site-nav .site-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 11px;
  color: var(--text);
  cursor: pointer;
}

/* mobile dropdown menu */
.site-mobile-menu {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 20px 40px rgba(0, 0, 0, .14);
  z-index: 39;
}
.site-mobile-menu.open { display: block; }
.site-mobile-menu .site-mobile-in {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 22px;
}
.site-mobile-menu a {
  display: block;
  padding: 15px 0;
  min-height: 48px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}
.site-mobile-menu a:last-child { border-bottom: none; color: var(--accent); }

@media (max-width: 860px) {
  .site-nav .site-nav-actions a.site-link,
  .site-nav .site-nav-actions a.site-cta { display: none; }
  .site-nav .site-burger { display: inline-flex; }
}

/* ───────────────────────── Site footer ───────────────────────── */

footer.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-2);
  margin-top: 0;
}
.site-footer .site-footer-in {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 22px 36px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}
.site-footer .foot-brand-col { max-width: 280px; }
.site-footer .foot-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}
.site-footer .foot-brand .mark {
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.site-footer .foot-tag {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text-2);
}

.site-footer .foot-col h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
  margin: 2px 0 6px;
  font-weight: 600;
}
.site-footer .foot-col a {
  display: flex;
  align-items: center;
  min-height: 44px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
}
.site-footer .foot-col a:hover { color: var(--accent); }

.site-footer .site-footer-bottom {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 22px 28px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-2);
}
.site-footer .site-product-disclaimer {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 22px;
  border-top: 1px solid var(--border);
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.45;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-footer .site-product-disclaimer a {
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}

@media (max-width: 760px) {
  .site-footer .site-footer-in {
    grid-template-columns: 1fr 1fr;
    gap: 24px 20px;
    padding: 36px 22px 24px;
  }
  .site-footer .foot-brand-col { grid-column: 1 / -1; max-width: none; }
  .site-footer .site-product-disclaimer { align-items: flex-start; flex-direction: column; gap: 6px; }
}
@media (max-width: 420px) {
  .site-footer .site-footer-in { grid-template-columns: 1fr; }
}