:root {
  color-scheme: dark;
  --bg: #111318;
  --panel: #1b2028;
  --text: #f4f7fa;
  --muted: #a8b1be;
  --accent: #7ab6ff;
  --border: #2a313d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.site-header {
  padding: 1.5rem 1rem 0.75rem;
  text-align: center;
}

.site-title {
  margin: 0;
  font-size: clamp(1.8rem, 2.5vw, 2.6rem);
}

.site-title-link {
  color: inherit;
  text-decoration: none;
}

.site-title-link:hover {
  color: var(--accent);
}

.site-title-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

.album-grid,
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.album-card,
.photo-card {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 0.75rem;
  overflow: hidden;
  cursor: pointer;
  color: inherit;
  text-decoration: none;
  display: block;
}

.album-card:hover,
.photo-card:hover {
  border-color: var(--accent);
}

.album-card img,
.album-card video,
.photo-card img,
.photo-card video {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.album-card h2 {
  font-size: 1rem;
  margin: 0;
  padding: 0.75rem;
}

.album-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.back-button {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 0.45rem 0.75rem;
  border-radius: 0.5rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.back-button:hover {
  border-color: var(--accent);
}

.album-title {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
}

.empty {
  color: var(--muted);
  text-align: center;
  margin-top: 2rem;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 999;
}

.lightbox-dismiss {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: rgba(0, 0, 0, 0.92);
}

.hidden {
  display: none;
}

/* No outer flex on #lightbox — iOS Safari long-press → Save to Photos is unreliable on
   fixed flex roots. Media is absolutely stacked; empty area uses pointer-events passthrough. */
.lightbox-media {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.lightbox-media .lightbox-image,
.lightbox-media .lightbox-video {
  pointer-events: auto;
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  -webkit-touch-callout: default;
  touch-callout: default;
  -webkit-user-select: auto;
  user-select: auto;
  -webkit-user-drag: auto;
}

.lightbox-nav,
.lightbox-close {
  position: absolute;
  z-index: 3;
  border: none;
  color: white;
  background: rgba(0, 0, 0, 0.45);
  cursor: pointer;
}

.lightbox-close {
  top: max(0.75rem, env(safe-area-inset-top, 0px));
  right: max(0.75rem, env(safe-area-inset-right, 0px));
  font-size: 2.2rem;
  line-height: 1;
  border-radius: 0.5rem;
  padding: 0 0.65rem 0.25rem;
}

.lightbox-nav {
  top: calc(50% - 1.5rem);
  font-size: 2.4rem;
  border-radius: 999px;
  width: 3rem;
  height: 3rem;
}

.lightbox-prev {
  left: 1rem;
}

.lightbox-next {
  right: 1rem;
}