:root {
  --bg: #0d0d0d;
  --surface: #1a1a1a;
  --surface2: #252525;
  --accent: #3b82f6;
  --accent2: #60a5fa;
  --text: #f1f5f9;
  --text-muted: #64748b;
  --border: rgba(255,255,255,0.08);
  --radius: 12px;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
  overscroll-behavior: none;
}

/* ── HEADER ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,13,13,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0.875rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  font-size: 1.375rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex: 1;
  user-select: none;
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  white-space: nowrap;
}

.album-select {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  outline: none;
  cursor: pointer;
}

.commit-ref {
  font-size: 0.6rem;
  font-weight: 400;
  font-family: 'Courier New', monospace;
  color: var(--text-muted);
  -webkit-text-fill-color: var(--text-muted);
  margin-left: 0.4rem;
  opacity: 0.65;
  vertical-align: middle;
}

/* ── STATUS BAR ── */
.status-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.625rem 1.25rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  display: none;
  align-items: center;
  gap: 0.75rem;
}
.status-bar.visible { display: flex; }

.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── GALLERY ── */
.gallery {
  padding: 0.75rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}
@media (max-width: 540px) {
  .gallery { grid-template-columns: repeat(2, 1fr); gap: 0.375rem; }
}
@media (min-width: 1100px) {
  .gallery { grid-template-columns: repeat(4, 1fr); }
}

.photo-card {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 6px;
  background: var(--surface);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.photo-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: transparent;
  transition: background 0.18s;
}
.photo-card:hover::after { background: rgba(255,255,255,0.06); }

.photo-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}
.photo-card:hover img { transform: scale(1.04); }

.photo-card.skeleton {
  background: linear-gradient(90deg, var(--surface) 0%, var(--surface2) 50%, var(--surface) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.video-badge {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  background: rgba(0,0,0,0.6);
  border-radius: 50%;
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
  pointer-events: none;
}
.video-badge svg { width: 18px; height: 18px; fill: white; margin-left: 3px; }

/* ── PAGINATION ── */
.pagination {
  padding: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}
.page-info { font-size: 0.875rem; color: var(--text-muted); }

/* ── BOUTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover:not(:disabled) { background: var(--surface2); border-color: rgba(59,130,246,0.5); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* ── LIGHTBOX ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(0,0,0,0.97);
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}
.lightbox.open { opacity: 1; pointer-events: auto; }

.lb-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0.75rem 1rem;
  flex-shrink: 0;
  padding-top: calc(0.75rem + env(safe-area-inset-top));
}
.lb-counter { font-size: 0.875rem; color: var(--text-muted); text-align: center; }
.lb-actions { display: flex; gap: 0.5rem; justify-content: flex-end; }

.lb-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
}
.lb-btn:hover { background: var(--surface2); }
.lb-btn svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.lb-image-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  min-height: 0;
  cursor: pointer;
}

#lb-img, #lb-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
#lb-img  { display: block; }
#lb-video { display: none; outline: none; }

.lb-nav {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px;
  background: rgba(0,0,0,0.45);
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: white;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
  z-index: 2;
}
.lb-nav:hover { background: rgba(255,255,255,0.12); }
.lb-prev { left: 0.75rem; }
.lb-next { right: 0.75rem; }
.lb-nav svg { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.lb-nav[hidden] { display: none; }

/* ── Mode plein écran (tap image → cache chrome) ── */
.lb-header, .lb-footer {
  transition: opacity 0.25s ease, max-height 0.25s ease, padding 0.25s ease;
  max-height: 120px;
  overflow: hidden;
}
.lb-nav:not([hidden]) { transition: background 0.15s, opacity 0.25s ease; }
.lightbox.chrome-hidden .lb-header,
.lightbox.chrome-hidden .lb-footer { opacity: 0; pointer-events: none; max-height: 0; padding-top: 0; padding-bottom: 0; }
.lightbox.chrome-hidden .lb-nav { opacity: 0; pointer-events: none; }

.lb-footer {
  padding: 0.75rem 1.25rem;
  padding-bottom: calc(0.75rem + env(safe-area-inset-bottom));
  flex-shrink: 0;
  text-align: center;
}
.lb-caption { font-size: 0.9375rem; font-weight: 500; margin-bottom: 0.2rem; }
.lb-date { font-size: 0.8125rem; color: var(--text-muted); }

/* ── EMPTY / ERROR STATES ── */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}
.empty-state h2 { font-size: 1.25rem; color: var(--text); margin-bottom: 0.5rem; }

/* ── UPDATE BANNER ── */
.update-banner {
  position: fixed;
  bottom: 0;
  left: 0; right: 0;
  z-index: 900;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 1.25rem;
  padding-bottom: calc(0.875rem + env(safe-area-inset-bottom));
  transform: translateY(100%);
  transition: transform 0.3s ease;
  font-size: 0.9375rem;
  font-weight: 500;
}
.update-banner.visible { transform: translateY(0); }
.update-banner .btn-update {
  background: #fff;
  color: var(--accent);
  border: none;
  border-radius: 8px;
  padding: 0.4rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  max-width: min(90vw, 420px);
  text-align: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
  white-space: pre-line;
}
.toast.show { opacity: 1; pointer-events: auto; }
.toast-error   { background: #dc2626; color: white; }
.toast-success { background: #16a34a; color: white; }
.toast-info    { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }

/* ── ICON BUTTON ── */
.icon-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}
.icon-btn:hover { background: var(--surface2); color: var(--text); }
.icon-btn svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ── SETTINGS ── */
.settings-overlay {
  position: fixed; inset: 0; z-index: 400;
  background: rgba(0,0,0,0.55);
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
}
.settings-overlay.open { opacity: 1; pointer-events: auto; }

.settings-panel {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 401;
  width: min(320px, 90vw);
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.4,0,0.2,1);
  overflow: hidden;
}
.settings-panel.open { transform: translateX(0); }

.settings-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 0.75rem 0.75rem 1rem;
  padding-top: calc(0.75rem + env(safe-area-inset-top));
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.settings-header h2 { font-size: 1rem; font-weight: 700; color: var(--text); }

.settings-body { flex: 1; overflow-y: auto; padding: 0.75rem 1rem; }
.settings-section { margin-bottom: 1.25rem; }
.settings-section h3 {
  font-size: 0.65rem; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.09em;
  margin-bottom: 0.5rem;
}
.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.8125rem;
}
.settings-row:last-child { border-bottom: none; }
.settings-muted { font-size: 0.75rem; color: var(--text-muted); font-family: 'Courier New', monospace; }
.settings-sub   { font-size: 0.7rem; color: var(--text-muted); padding: 0.15rem 0 0.35rem; white-space: pre-line; word-break: break-all; }

/* ── TOGGLE SWITCH ── */
.toggle { position: relative; display: inline-block; width: 40px; height: 22px; flex-shrink: 0; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  left: 2px; top: 2px;
  background: white;
  border-radius: 50%;
  transition: transform 0.2s;
}
.toggle input:checked + .toggle-slider { background: var(--accent); border-color: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); }
.toggle input:disabled + .toggle-slider { opacity: 0.4; cursor: not-allowed; }

/* ── FILTRES ── */
.filter-group { margin-bottom: 0.75rem; }
.filter-group-label { font-size: 0.65rem; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 0.3rem; }
.filter-chips { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.filter-chip {
  display: inline-flex; align-items: center; gap: 0.25rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.filter-chip.active { background: var(--accent); border-color: var(--accent); color: white; }
.filter-chip-count { opacity: 0.6; font-size: 0.68rem; }
.filter-active-dot {
  display: none; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); position: absolute; top: 6px; right: 6px;
}
#settings-btn { position: relative; }
#settings-btn.filter-on .filter-active-dot { display: block; }

/* ── SLIDER PRÉCHARGEMENT ── */
.pf-range {
  width: 100%;
  margin: 0.6rem 0 0.2rem;
  accent-color: var(--accent);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.pf-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
  padding: 0 4px;
  margin-bottom: 0.1rem;
}