body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f1115;
  color: #f5f7fa;
}
.container {
  width: min(900px, 92%);
  margin: 80px auto;
}
h1 {
  font-size: 42px;
  margin-bottom: 10px;
}
p {
  color: #c7d0dc;
}
.card {
  margin-top: 30px;
  background: #171b22;
  border: 1px solid #2a313d;
  border-radius: 16px;
  padding: 24px;
}