body {
  background-color: #1e4fa8;
}
.central-panel {
  max-width: 1180px;
  margin: 40px auto;
  background: #ffffff;
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
  padding: 32px;
}