/* Navegación pública compartida: portada, directorio y notas. */
nav.primary {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--crema) 94%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid color-mix(in srgb, var(--madera), transparent 85%);
}

nav.primary .container {
  width: min(100% - 48px, var(--maxw, 1240px));
  max-width: var(--maxw, 1240px);
  min-height: 84px;
  margin: 0 auto;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

nav.primary .brand {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--chocolate);
  text-decoration: none;
}

nav.primary .brand:hover { text-decoration: none; }

nav.primary .brand .mark {
  width: 58px;
  height: 58px;
  flex: 0 0 58px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--dorado), transparent 50%);
  border-radius: 999px;
  background: var(--marfil);
}

nav.primary .brand .mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

nav.primary .wordmark {
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1;
}

nav.primary .wordmark .l1 {
  color: var(--chocolate);
  font-family: var(--serif-h1);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

nav.primary .wordmark .l2 {
  margin-top: 4px;
  color: var(--madera);
  font-family: var(--serif-h2);
  font-size: 13px;
  font-style: italic;
}

nav.primary ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.2vw, 32px);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
}

nav.primary ul a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 0 6px;
  color: var(--chocolate);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

nav.primary ul a:hover,
nav.primary ul a:focus-visible,
nav.primary ul a[aria-current="page"] {
  color: var(--madera);
  border-bottom-color: var(--dorado);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  min-width: 48px;
  min-height: 48px;
  padding: 10px 12px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid color-mix(in srgb, var(--madera), transparent 55%);
  background: transparent;
  color: var(--chocolate);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1;
  text-transform: uppercase;
  cursor: pointer;
  touch-action: manipulation;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  color: var(--crema);
  background: var(--chocolate);
  border-color: var(--chocolate);
}

.nav-toggle-icon {
  width: 22px;
  height: 16px;
  position: relative;
  display: inline-block;
  flex: 0 0 22px;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after,
.nav-toggle-icon span {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: currentColor;
  transform-origin: center;
  transition: transform .2s ease, opacity .15s ease;
}

.nav-toggle-icon::before { top: 0; }
.nav-toggle-icon span { top: 7px; }
.nav-toggle-icon::after { top: 14px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon span { opacity: 0; }

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  nav.primary .container {
    width: min(100% - 32px, var(--maxw, 1240px));
    min-height: 76px;
    padding-block: 10px;
    flex-flow: row wrap;
    align-items: center;
    gap: 8px 12px;
  }

  nav.primary .brand { flex: 1 1 auto; }

  nav.primary .brand .mark {
    width: 52px;
    height: 52px;
    flex-basis: 52px;
  }

  nav.primary.is-enhanced .nav-toggle { display: inline-flex; }

  nav.primary.is-enhanced ul {
    width: 100%;
    max-width: none;
    display: none;
    flex: 1 0 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow: visible;
    padding: 6px 0 10px;
    white-space: normal;
    border-top: 1px solid color-mix(in srgb, var(--madera), transparent 82%);
  }

  nav.primary.is-enhanced.is-open ul { display: flex; }

  nav.primary.is-enhanced ul li { width: 100%; }

  nav.primary.is-enhanced ul a {
    width: 100%;
    min-height: 48px;
    padding: 11px 4px;
    border-bottom-width: 1px;
    border-bottom-color: color-mix(in srgb, var(--madera), transparent 86%);
  }
}

@media (max-width: 420px) {
  .nav-toggle-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  nav.primary .wordmark .l1 { font-size: 13px; }
  nav.primary .wordmark .l2 { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .nav-toggle-icon::before,
  .nav-toggle-icon::after,
  .nav-toggle-icon span {
    transition: none;
  }
}