* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

:root {
  --bg: #eceef0;
  --text: #2b2f36;
  --card-bg: #ffffff;
  --muted: #6b7280;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1f24;
    --text: #d7dade;
    --card-bg: #262a31;
    --muted: #8a919c;
  }
}

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

header {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem 1.5rem;
}

header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.6rem, 6vw, 2.25rem);
}

.tagline {
  margin: 0;
  color: var(--muted);
}

.gallery {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: 1.25rem;
}

.card {
  margin: 0;
  background: var(--card-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

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

.card figcaption {
  padding: 0.75rem 1rem;
  color: var(--muted);
  font-size: 0.875rem;
}

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
  color: var(--muted);
  font-size: 0.875rem;
  text-align: center;
}

@media (max-width: 480px) {
  header {
    padding: 2rem 1.25rem 1rem;
  }

  .gallery {
    padding: 1rem;
    gap: 1rem;
  }
}