* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: Arial, Helvetica, sans-serif;
  background: #12141a;
  color: #e6e8ee;
  line-height: 1.6;
}
header {
  background: #0b0c10;
  padding: 1.5rem 1rem;
  text-align: center;
  border-bottom: 2px solid #3a3f4b;
}
header h1 { letter-spacing: 4px; font-size: 1.8rem; }
nav { margin-top: 0.8rem; }
nav a { color: #9aa3b5; margin: 0 0.8rem; text-decoration: none; }
nav a:hover { color: #fff; }
main { max-width: 800px; margin: 2rem auto; padding: 0 1rem; }
h2 { margin: 1.5rem 0 0.8rem; color: #ffffff; }
p, li { margin-bottom: 0.8rem; color: #c5cad6; }
ul { padding-left: 1.5rem; }
a { color: #7fb0ff; }
footer {
  text-align: center;
  padding: 2rem 1rem;
  color: #6d7587;
  font-size: 0.9rem;
  border-top: 1px solid #2a2e38;
  margin-top: 3rem;
}
footer a { color: #6d7587; margin: 0 0.5rem; }