:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666666;
  --accent: #2563eb;
  --border: #e5e5e5;
  --card-bg: #fafafa;
  --max-width: 900px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f10;
    --fg: #f2f2f2;
    --muted: #a0a0a0;
    --accent: #60a5fa;
    --border: #2a2a2a;
    --card-bg: #18181a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--border);
}

.back {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

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

h1 {
  margin: 0.75rem 0 0.25rem;
}

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

main {
  padding: 2.5rem 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  text-align: center;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card .emoji {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

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

footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}