:root {
  color-scheme: light dark;
  --bg: #f5f5f4;
  --fg: #1c1c1c;
  --muted: #6b6b6b;
  --card-bg: #ffffff;
  --border: #e2e2e0;
  --accent: #2563eb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #ededed;
    --muted: #9a9a9a;
    --card-bg: #1a1a1a;
    --border: #2a2a2a;
    --accent: #60a5fa;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.card {
  width: 100%;
  max-width: 28rem;
  padding: 2.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  text-align: center;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: 1.75rem;
}

.bio {
  margin: 0 0 1.5rem;
  color: var(--muted);
  line-height: 1.5;
}

.links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.25rem;
  justify-content: center;
  flex-wrap: wrap;
}

.links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.links a:hover {
  text-decoration: underline;
}

.links a[aria-disabled="true"] {
  color: var(--muted);
  pointer-events: none;
}