body {
  background-image: url(../mastermind.png);
  background-size: cover;
}

.main-title {
  text-align: center;
  background-color: #547bdf;
  color: white;
  padding: 20px;
  border-radius: 0 0 20px 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  margin-bottom: 30px;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.main-title h1 {
  margin: 0;
  font-size: 32px;
  letter-spacing: 1px;
}