:root {
  --color-bg: #0f0f0f;
  --color-surface: #1a1a1a;
  --color-text: #ffffff;
  --color-text-muted: #888888;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --radius-md: 8px;
  --radius-lg: 12px;
}

@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #f5f5f5;
    --color-surface: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #666666;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

body {
  min-height: 100vh;
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-primary-hover);
}

/* Header */
.header {
  background: var(--color-surface);
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.header h1 a {
  color: var(--color-text);
}

/* Bouton Diaporama */
.slideshow-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-primary);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease;
}

.slideshow-btn:hover {
  background: var(--color-primary-hover);
}

.slideshow-btn svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm);
  list-style: none;
  padding: 0;
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.breadcrumb .separator {
  color: var(--color-text-muted);
}

.breadcrumb .current {
  color: var(--color-text);
  font-weight: 500;
}

/* Section titles */
.section-title {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Folders grid */
.folders-section {
  margin-bottom: var(--spacing-xl);
}

.folders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-md);
}

@media (min-width: 640px) {
  .folders-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
}

@media (min-width: 1024px) {
  .folders-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
  }
}

/* Folder card */
.folder-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: inherit;
}

.folder-thumbnail {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}

.folder-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.folder-card:hover .folder-thumbnail img {
  transform: scale(1.05);
  filter: brightness(0.8);
}

.folder-overlay {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 50%;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.folder-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: white;
}

.folder-name {
  font-weight: 500;
  text-align: center;
  padding: 0 0.25rem;
  font-size: 0.9rem;
}

/* Photos grid */
.photos-section {
  margin-bottom: var(--spacing-xl);
}

.photos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .photos-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
  }
}

@media (min-width: 1200px) {
  .photos-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

/* Photo card */
.photo-card {
  display: block;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 1;
  background: var(--color-surface);
}

.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.photo-card:hover img {
  transform: scale(1.05);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
}

/* Placeholder for folders without images */
.placeholder-folder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
}

.placeholder-folder svg {
  width: 3rem;
  height: 3rem;
  color: var(--color-text-muted);
}

/* Protection contre le téléchargement */
img {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  pointer-events: none;
}

.photo-card,
.folder-card {
  pointer-events: auto;
}

.photo-card img,
.folder-thumbnail img {
  pointer-events: none;
}

/* Désactiver la sélection de texte sur les images dans la lightbox */
.gslide-image img {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}