:root {
  color-scheme: light dark;
  --bg: #fff;
  --fg: #1a1a1a;
  --muted: #666;
  --card-bg: #f5f5f5;
  --card-border: #e0e0e0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1a;
    --fg: #eee;
    --muted: #aaa;
    --card-bg: #262626;
    --card-border: #333;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 3rem 1.5rem;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

main {
  max-width: 800px;
  margin: 0 auto;
}

h1 {
  font-size: 1.75rem;
  margin-bottom: 2rem;
}

.projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.project-card {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: var(--card-bg);
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

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

.project-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

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