* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 40px 20px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #111;
  color: #eee;
}

main {
  max-width: 700px;
  margin: 0 auto;
}

h1 {
  margin-bottom: 24px;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

a {
  display: block;
  padding: 16px 20px;
  border: 1px solid #333;
  border-radius: 8px;
  background: #1b1b1b;
  color: #fff;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}

a:hover {
  background: #252525;
  border-color: #555;
}