/* Reset some defaults */
body, h1 {
  margin: 0;
  padding: 0;
}

/* Full-screen center */
body {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  font-family: Arial, sans-serif;
}

.container h1 {
  color: #fff;
  font-size: 3rem;
  text-align: center;
  text-shadow: 0 4px 8px rgba(0,0,0,0.3);
}