:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666;
  --accent: #2563eb;
  --border: #e5e5e5;
  --card: #fafafa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --fg: #e6e6e6;
    --muted: #9aa0a6;
    --accent: #6ea8ff;
    --border: #2a2f36;
    --card: #1a1e24;
  }
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  margin: 0;
  padding: 2rem 1rem;
}

main {
  max-width: 720px;
  margin: 0 auto;
}

header {
  margin-bottom: 2rem;
}

h1 {
  margin: 0 0 0.25rem;
  font-size: 2rem;
}

header p {
  margin: 0;
  color: var(--muted);
}

ul.tools {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

ul.tools li a {
  display: block;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.05s ease;
}

ul.tools li a:hover {
  border-color: var(--accent);
}

ul.tools li a:active {
  transform: translateY(1px);
}

ul.tools .name {
  font-weight: 600;
  color: var(--accent);
}

ul.tools .desc {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

footer {
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.85rem;
}

footer a {
  color: var(--accent);
}