/* ══════════════════════════════════════════════════════════════════
   SITE-HEADER · Medicina Toroidal
   Estilos compartidos del nav unificado. Selectores anclados en
   .site-header para tener prioridad sobre los estilos inline viejos
   de cada página.
   ══════════════════════════════════════════════════════════════════ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(2, 6, 23, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.site-header .top-nav {
  position: static;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 5%;
  background: transparent;
  border: 0;
  max-width: 1400px;
  margin: 0 auto;
}

.site-header .nav-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

.site-header .nav-logo svg {
  width: 38px;
  height: 38px;
  color: var(--primary, #f0cc60);
  filter: drop-shadow(0 0 8px rgba(226, 184, 80, 0.4));
  flex-shrink: 0;
}

.site-header .nav-logo span {
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  letter-spacing: 0.15em;
  color: var(--on-surface, var(--text, #ecdcff));
  text-transform: uppercase;
  font-weight: 500;
}

.site-header .nav-links {
  display: flex;
  gap: clamp(1.1rem, 2.1vw, 2.5rem);
  flex-wrap: wrap;
}

.site-header .nav-links a {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--on-surface-variant, var(--text-faint, #cbd5e1));
  transition: color 0.25s ease, transform 0.25s ease;
  font-weight: 500;
}

.site-header .nav-links a:hover {
  color: var(--primary, #f0cc60);
  transform: translateY(-1px);
}

.site-header .nav-links a[aria-current="page"] {
  color: var(--primary, #f0cc60);
  position: relative;
}

.site-header .nav-links a[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

/* ── Mobile ─────────────────────────────────────────────────── */
@media (max-width: 760px) {
  .site-header .top-nav {
    flex-direction: row;
    align-items: center;
    padding: 0.55rem 0.9rem;
    gap: 0.4rem;
    flex-wrap: wrap;
  }
  /* El widget de perfil (botón Entrar/Perfil) se inserta por firebase-auth.js
     como tercer hijo del nav. En mobile va a la derecha del logo, antes que
     los nav-links que bajan a la segunda fila. */
  .site-header .pt-nav-widget { order: 2; }
  .site-header .nav-logo {
    gap: 0.5rem;
    flex-shrink: 1;
    min-width: 0;
    order: 1;
  }
  .site-header .nav-logo svg {
    width: 26px;
    height: 26px;
  }
  .site-header .nav-logo span {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .site-header .nav-links {
    order: 3;
    width: 100%;
    gap: 1rem;
    padding-top: 0.45rem;
    margin-top: 0.1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    justify-content: flex-start;
  }
  .site-header .nav-links::-webkit-scrollbar {
    display: none;
  }
  .site-header .nav-links a {
    font-size: 0.58rem;
    letter-spacing: 0.1em;
    white-space: nowrap;
    flex-shrink: 0;
  }
}