:root {
  --bg: #f4f2ee;
  --surface: #ffffff;
  --text: #22252a;
  --muted: #6b6f76;
  --accent: #2f5d8a;
  --radius: 6px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181b;
    --surface: #202328;
    --text: #e8e6e1;
    --muted: #a0a4ab;
    --accent: #8ab4e0;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px 48px;
}

.site-header {
  padding: 32px 0 24px;
  text-align: center;
}

.site-title {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.album-title {
  margin: 0 0 4px;
  font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 600;
}

.album-description {
  margin: 0 0 8px;
  color: var(--muted);
}

.back-link {
  display: inline-block;
  margin-bottom: 24px;
  font-size: 15px;
  text-decoration: none;
}

/* Liste des bibliothèques */

.album-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.album-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.album-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.album-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

.album-card__title {
  padding: 12px 14px 0;
  font-weight: 600;
  font-size: 19px;
}

.album-card__meta {
  padding: 2px 14px 14px;
  color: var(--muted);
  font-size: 15px;
}

/* Grille des photos */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.thumbnail { margin: 0; }

.thumbnail a {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
}

.thumbnail img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

/* Légende au survol */

.hover-caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 28px 12px 10px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.78));
  color: #fff;
  font-size: 14px;
  line-height: 1.35;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.hover-caption strong { display: block; font-size: 15px; }
.hover-caption span { display: block; opacity: 0.85; }

.thumbnail a:hover .hover-caption,
.thumbnail a:focus-visible .hover-caption {
  opacity: 1;
  transform: none;
}

.thumbnail a:hover img { transform: scale(1.03); }

/* Sur écran tactile (pas de survol), la légende reste visible. */
@media (hover: none) {
  .hover-caption { opacity: 1; transform: none; }
}

/* Légende dans la visionneuse : contenu caché sur la page. */
.pswp-caption-content { display: none; }

.pswp__dynamic-caption {
  color: #fff;
  position: absolute;
  width: 100%;
  left: 0;
  top: 0;
  font-size: 16px;
  line-height: 1.45;
  transition: opacity 120ms linear !important;
}

.pswp__dynamic-caption strong { font-size: 18px; }

.pswp__dynamic-caption--faded { opacity: 0 !important; }

/* À côté de la photo quand il y a la place */
.pswp__dynamic-caption--aside {
  width: auto;
  max-width: 320px;
  padding: 20px 15px 20px 20px;
  margin-top: 70px;
}

/* Sous la photo */
.pswp__dynamic-caption--below {
  width: auto;
  max-width: 700px;
  padding: 15px 0 0;
}

.pswp__dynamic-caption--on-hor-edge {
  padding-left: 15px;
  padding-right: 15px;
}

/* Sur mobile : bandeau en bas de l'écran */
.pswp__dynamic-caption--mobile {
  width: 100%;
  background: rgba(0, 0, 0, 0.6);
  padding: 10px 15px;
  right: 0;
  bottom: 0;
  top: auto !important;
  left: 0 !important;
}

.pswp { --pswp-bg: #0d0e10; }