/* Header */
header {
  background: #ffffff;
  padding: 30px 20px;
  text-align: center;
  border-bottom: 3px solid #000000;
}

.logo-container {
  max-width: 800px;
  margin: 0 auto;
}

.logo-container img {
  max-width: 100%;
  height: auto;
}

@media (max-width: 768px) {
  header {
    padding: 20px 10px;
  }
}