:root {
  color-scheme: light dark;
  --text: #1a1a1a;
  --text-muted: #666;
  --bg: #fafafa;
  --heading: #111;
  --link: #1565c0;
  --card-bg: #fff;
  --card-border: #e0e0e0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e8e8e8;
    --text-muted: #aaa;
    --bg: #111;
    --heading: #fff;
    --link: #64b5f6;
    --card-bg: #1a1a1a;
    --card-border: #333;
  }
}

* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--link);
}

h1 {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
  color: var(--heading);
}

h2 {
  font-size: 1.15rem;
  margin-top: 1.75rem;
  color: var(--heading);
}

.meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

ul {
  padding-left: 1.25rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.app-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.app-card {
  display: block;
  padding: 1rem 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease;
}

.app-card:hover {
  border-color: var(--link);
}

.app-card strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
  color: var(--heading);
}

.app-card span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: 0.85rem;
}