.header {
  background-color: #f6f2eb; /* same as body for warm tone */
  padding: 2rem 0 1.5rem;
  text-align: center;
  border-bottom: 1px solid #e2dcd2; /* subtle separation from body */
}

.header h1 {
  font-size: 2.4rem;
  font-weight: normal;
  margin: 0;
  color: #2f2a26;
}

.header .subtitle {
  font-style: italic;
  font-size: 1.2rem;
  color: #5b5349;
  margin-top: 0.5rem;
}