:root {
  color-scheme: dark;
  --page: #0f172a;
  --surface: #111c31;
  --surface-raised: #17243b;
  --text: #f8fafc;
  --muted: #a7b3c7;
  --accent: #fbbf24;
  --gap: 0.65rem;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 85% 0%, rgba(251, 191, 36, 0.12), transparent 28rem),
    var(--page);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.page-shell {
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: max(1.25rem, env(safe-area-inset-top)) 1rem
    max(2rem, env(safe-area-inset-bottom)) 1rem;
}

.hero {
  padding: 1.25rem 0 1.5rem;
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2.2rem, 11vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.intro {
  max-width: 38rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.photo-count {
  margin: 1.25rem 0 0;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
}

.photo-card {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border: 0;
  border-radius: 0.75rem;
  background: var(--surface-raised);
  box-shadow: 0 0.4rem 1.2rem rgba(0, 0, 0, 0.2);
  cursor: zoom-in;
  isolation: isolate;
}

.photo-card::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, transparent 70%, rgba(0, 0, 0, 0.32));
  content: "";
  pointer-events: none;
}

.photo-card:focus-visible {
  outline: 0.2rem solid var(--accent);
  outline-offset: 0.2rem;
}

.photo-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 180ms ease, filter 180ms ease;
}

.photo-card:hover img,
.photo-card:focus-visible img {
  transform: scale(1.035);
  filter: brightness(1.08);
}

.photo-label {
  position: absolute;
  right: 0.55rem;
  bottom: 0.45rem;
  left: 0.55rem;
  z-index: 2;
  overflow: hidden;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.68rem;
  font-weight: 650;
  text-overflow: ellipsis;
  text-shadow: 0 0.1rem 0.35rem rgba(0, 0, 0, 0.8);
  white-space: nowrap;
}

.empty-state {
  margin: 3rem 0;
  color: var(--muted);
  text-align: center;
}

@media (min-width: 540px) {
  :root {
    --gap: 0.8rem;
  }

  .page-shell {
    padding-right: 1.5rem;
    padding-left: 1.5rem;
  }

  .gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 840px) {
  .hero {
    padding-top: 2.5rem;
    padding-bottom: 2rem;
  }

  .gallery {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .photo-card img {
    transition: none;
  }
}