/* ══════════════════════════════════════════════════════════════════════════
   recode-nav.css — the grouped site header.

   Loaded by all 53 pages. Depends on the tokens in recode-ds.css (v2 pages) or
   recode-theme-bridge.css (legacy pages) — both define the same variable names,
   so this file works on either without a fork.

   Dropdowns open on hover AND on :focus-within, so they work by keyboard with
   no JavaScript at all. recode-nav.js only adds click-toggle, Escape-to-close
   and the mobile sheet — the nav is fully navigable if that script never runs.
   ══════════════════════════════════════════════════════════════════════════ */

.rnav-wrap {
  position: sticky; top: 0; z-index: 200;
  background: var(--color-bg, var(--bg, #f3f2f2));
  border-bottom: 2px solid var(--color-divider, var(--border));
}

.rnav {
  max-width: var(--page-max, var(--max-w, 1200px));
  margin: 0 auto; padding: 0 var(--page-pad, clamp(20px, 5vw, 72px));
  display: flex; align-items: center; gap: var(--space-4, 16px);
  min-height: 58px;
}

.rnav-brand {
  font-family: var(--font-heading, var(--serif)), system-ui, sans-serif;
  font-weight: 800; font-size: 18px; letter-spacing: -0.01em;
  color: var(--color-text, var(--text)); text-decoration: none; flex: none;
}

.rnav-menu { display: flex; align-items: center; gap: var(--space-4, 16px); flex: 1; }
.rnav-spacer { flex: 1; }

/* ── top-level items ─────────────────────────────────────────────────── */
.rnav-top, .rnav-link {
  font-family: var(--font-body, var(--sans)), system-ui, sans-serif;
  font-size: 14px; line-height: 1; color: var(--color-text, var(--text));
  background: transparent; border: 0; padding: 8px 0; cursor: pointer;
  text-decoration: none; display: inline-flex; align-items: center; gap: 5px;
  white-space: nowrap;
}
.rnav-top:hover, .rnav-link:hover,
.rnav-link[aria-current="page"] { color: var(--color-accent, var(--accent)); }
.rnav-caret { font-size: 13px; transition: transform 140ms ease; display: inline-block; }
.rnav-group:hover .rnav-caret,
.rnav-group:focus-within .rnav-caret,
.rnav-top[aria-expanded="true"] .rnav-caret { transform: rotate(90deg); }

/* ── dropdown panel ──────────────────────────────────────────────────── */
.rnav-group { position: relative; }
.rnav-panel {
  position: absolute; top: 100%; left: -14px; min-width: 316px;
  display: none; flex-direction: column;
  background: var(--color-bg, var(--bg, #f3f2f2));
  border: 2px solid var(--color-divider, var(--border));
  box-shadow: var(--shadow-lg, 0 12px 32px rgba(45, 43, 43, .22));
  padding: 6px;
}
/* Keyboard-only support: no JS required. */
.rnav-group:hover .rnav-panel,
.rnav-group:focus-within .rnav-panel,
.rnav-top[aria-expanded="true"] + .rnav-panel { display: flex; }

.rnav-panel a {
  display: block; padding: 11px 14px; text-decoration: none;
  color: var(--color-text, var(--text));
}
.rnav-panel a:hover, .rnav-panel a:focus-visible {
  background: var(--color-surface, var(--bg-elevated, #eae9e9));
}
.rnav-panel strong {
  display: block;
  font-family: var(--font-heading, var(--serif)), system-ui, sans-serif;
  font-weight: 800; font-size: 14px; letter-spacing: -0.005em; margin-bottom: 2px;
}
.rnav-panel span {
  display: block; font-size: 12.5px; line-height: 18px;
  color: color-mix(in srgb, currentColor 62%, transparent);
}

.rnav-cta { flex: none; border-radius: var(--radius-pill, 999px); }

/* ── burger ──────────────────────────────────────────────────────────── */
.rnav-burger {
  display: none; margin-left: auto; width: 38px; height: 38px;
  background: transparent; border: 0; cursor: pointer;
  flex-direction: column; justify-content: center; gap: 4px; padding: 0;
}
.rnav-burger span {
  display: block; height: 2px; width: 20px; margin: 0 auto;
  background: var(--color-text, var(--text)); transition: transform 160ms ease, opacity 160ms ease;
}
.rnav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.rnav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.rnav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Legacy pages ship their own <nav>/.mast header. inject-nav.js removes it,
   but hide any stray duplicate so a missed page never shows two headers. */
.rnav-wrap ~ .mast, .rnav-wrap ~ * > .mast,
.rnav-wrap ~ .util, .rnav-wrap ~ * > .util { display: none !important; }

@media (max-width: 860px) {
  .rnav { min-height: 52px; flex-wrap: wrap; }
  .rnav-burger { display: flex; }
  .rnav-menu {
    display: none; flex-direction: column; align-items: stretch;
    width: 100%; gap: 0; padding: 6px 0 14px;
    border-top: 2px solid var(--color-divider, var(--border));
  }
  .rnav-menu.is-open { display: flex; }
  .rnav-group { position: static; }
  .rnav-top { width: 100%; justify-content: space-between; padding: 13px 0; font-size: 15px; }
  .rnav-panel {
    position: static; min-width: 0; border: 0; box-shadow: none;
    padding: 0 0 6px 14px; background: transparent;
  }
  .rnav-group:hover .rnav-panel { display: none; }
  .rnav-top[aria-expanded="true"] + .rnav-panel { display: flex; }
  .rnav-link { padding: 13px 0; font-size: 15px; }
  .rnav-spacer { display: none; }
  .rnav-cta { margin-top: 10px; align-self: flex-start; }
}

@media print { .rnav-wrap { display: none; } }