body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  color: #333;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
}
.container {
  padding: 2rem;
  max-width: 600px;
  background: #fff;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  border-radius: 12px;
}
h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #003366;
}
p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}
#countdown {
  font-size: 1.5rem;
  font-weight: bold;
  color: #d9534f;
  margin-bottom: 2rem;
}
footer {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #777;
}