:root {
  color-scheme: light dark;
  --bg: #fff;
  --fg: #111;
  --muted: #666;
  --tile-bg: #f2f2f2;
  --accent: #0d6efd;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111;
    --fg: #eee;
    --muted: #aaa;
    --tile-bg: #1c1c1c;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
}

.site-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(128, 128, 128, 0.25);
}

.site-header h1 {
  margin: 0;
  font-size: 1.25rem;
  flex: 1;
}

#sync-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
}

#sync-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.sync-status {
  font-size: 0.85rem;
  color: var(--muted);
}

main {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.tile-row {
  display: grid;
  gap: 0.75rem;
}

.tile-row--reels {
  grid-auto-flow: column;
  grid-auto-columns: min(45vw, 260px);
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.tile-row--images {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.tile {
  background: var(--tile-bg);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.tile--reel {
  aspect-ratio: 9 / 16;
}

.tile--image {
  aspect-ratio: 1 / 1;
}

.tile iframe,
.tile .instagram-media {
  width: 100% !important;
  height: 100% !important;
  min-width: 0 !important;
}

.empty-state {
  color: var(--muted);
  font-size: 0.9rem;
}