/* Navigation visible without sideways scrolling, including after hydration. */
nav[aria-label="Navigation principale"],
nav[aria-label="Rubriques du contenu"],
[aria-label="Filtrer par initiale"] {
  flex-wrap: wrap;
  overflow: visible;
}
nav[aria-label="Navigation principale"] > a,
nav[aria-label="Rubriques du contenu"] > a {
  white-space: normal;
}
[aria-label="Filtrer par initiale"] > button {
  min-width: 44px;
  min-height: 44px;
}
@media (max-width: 639px) {
  nav[aria-label="Navigation principale"] {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 6px;
    padding-bottom: 0;
  }
  nav[aria-label="Navigation principale"] > a {
    display: flex;
    grid-column: span 2;
    align-items: center;
    justify-content: center;
    min-width: 0;
    min-height: 44px;
    padding: 8px 4px;
    line-height: 1.25;
    text-align: center;
  }
  nav[aria-label="Navigation principale"] > a:nth-child(n+4) {
    grid-column: span 3;
  }
  nav[aria-label="Rubriques du contenu"] {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    padding-bottom: 12px;
  }
  nav[aria-label="Rubriques du contenu"] > a {
    justify-content: flex-start;
    min-width: 0;
    min-height: 52px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--background);
    font-size: .875rem;
    line-height: 1.3;
  }
  nav[aria-label="Rubriques du contenu"] > a:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
  nav[aria-label="Rubriques du contenu"] > a > svg {
    flex-shrink: 0;
  }
  nav[aria-label="Rubriques du contenu"] > a[aria-current="page"] {
    border-color: var(--primary);
    background: var(--secondary);
  }
  nav[aria-label="Rubriques du contenu"] > a::after { display: none; }
  [aria-label="Filtrer par initiale"] { gap: 5px; }
}

/* Keep the site's name and signature beside the logo on small screens. */
@media (max-width: 639px) {
  .site-header a[aria-label="Des Livres À Partager — accueil"] {
    flex: 1 1 0;
    min-width: 0;
    gap: .65rem;
  }
  .site-header .brand-mark { flex-shrink: 0; }
  .site-header .brand-mark + span {
    display: block;
    min-width: 0;
  }
  .site-header .brand-mark + span > strong {
    font-size: clamp(1rem, 4.6vw, 1.125rem);
    line-height: 1.2;
  }
  .site-header .brand-mark + span > span {
    font-size: .625rem;
    line-height: 1.4;
    letter-spacing: .04em;
  }
}

/* Gentle accents for newsletter and voluntary support, on every screen size. */
nav[aria-label="Navigation principale"] > a[href="/newsletter"] {
  color: #173858;
  background-color: #f4eacb;
  border-color: #d8c798;
}
nav[aria-label="Navigation principale"] > a[href="/soutenir"] {
  color: #173858;
  background-color: #f3e1de;
  border-color: #d9b7b0;
}
nav[aria-label="Navigation principale"] > a[href="/newsletter"]:hover {
  background-color: #ecddad;
  border-color: #c5ae6d;
}
nav[aria-label="Navigation principale"] > a[href="/soutenir"]:hover {
  background-color: #e9ccc6;
  border-color: #bd8f85;
}
nav[aria-label="Navigation principale"] > a:is([href="/newsletter"], [href="/soutenir"]):focus-visible {
  outline: 2px solid #173858;
  outline-offset: 3px;
}