/* ============================================================================
 * af-header.css — Aletheia shared PUBLIC-site top nav (namespace: af-nav)
 * ----------------------------------------------------------------------------
 * One component for every public page: the landing (hero variant, over the dark
 * carousel) and the light public pages (About Overview/Team, Product & Services).
 * The IN-APP pillar dashboards keep their own contextual nav and never use this.
 * Colours are explicit (not app CSS vars) so it looks identical on index.html
 * and the standalone subscription.html.
 * ==========================================================================*/

.af-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 1.1rem 2.2rem;
  background: #ffffff;
  border-bottom: 1px solid rgba(35, 36, 31, 0.10);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  position: relative;
  z-index: 40;
}
.af-nav-mark {
  font-family: 'IBM Plex Serif', Georgia, serif;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: #23241f;
  text-decoration: none;
}
.af-nav-menu { display: flex; align-items: center; gap: 20px; }
.af-nav-link {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: rgba(35, 36, 31, 0.72);
  text-decoration: none;
  white-space: nowrap;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color .18s ease;
}
.af-nav-link:hover { color: #23241f; }

.af-nav-dd { position: relative; }
.af-nav-dd-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 168px;
  display: none;
  flex-direction: column;
  padding: 6px;
  background: #ffffff;
  border: 1px solid rgba(35, 36, 31, 0.12);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, .18);
  z-index: 60;
}
.af-nav-dd.open .af-nav-dd-menu { display: flex; }
.af-nav-dd-item {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-align: left;
  color: rgba(35, 36, 31, 0.82);
  text-decoration: none;
  background: transparent;
  border: none;
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.af-nav-dd-item:hover { background: rgba(35, 36, 31, 0.06); color: #23241f; }

.af-nav .auth-slot { display: flex; align-items: center; }
.af-nav-login {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: #2f5d4d;
  border: 1px solid rgba(47, 93, 77, 0.5);
  border-radius: 8px;
  padding: 8px 16px;
  text-decoration: none;
  background: transparent;
  cursor: pointer;
}
.af-nav-login:hover { background: rgba(47, 93, 77, 0.08); }

/* ---- HERO variant: over the dark landing carousel ---- */
.af-nav--hero {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 50;
  background: linear-gradient(to bottom, rgba(5, 8, 10, .78), rgba(5, 8, 10, 0));
  border-bottom: none;
}
.af-nav--hero .af-nav-mark { color: #F4F1EC; }
.af-nav--hero .af-nav-link { color: rgba(244, 241, 236, .82); }
.af-nav--hero .af-nav-link:hover { color: #F4F1EC; }
.af-nav--hero .af-nav-dd-menu {
  background: rgba(10, 15, 18, .96);
  border-color: rgba(244, 241, 236, .14);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .45);
}
.af-nav--hero .af-nav-dd-item { color: rgba(244, 241, 236, .82); }
.af-nav--hero .af-nav-dd-item:hover { background: rgba(244, 241, 236, .08); color: #F4F1EC; }
/* main.js fills .auth-slot with .primary-btn.outline (Login) or an avatar — make
   the Login button read on the dark hero. */
.af-nav--hero .auth-slot .primary-btn.outline { border-color: rgba(255, 255, 255, .5); color: #F4F1EC; }
.af-nav--hero .auth-slot .primary-btn.outline:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }

@media (max-width: 640px) {
  .af-nav { padding: 0.9rem 1.1rem; }
  .af-nav-menu { gap: 12px; }
}