body {
  color: #222;
  font-family: sans-serif;
  line-height: 1.5;
  margin: 1rem;
  max-width: 768px;
}

header {
  border-bottom: 1px solid #222;
  margin-bottom: 1rem;
}

footer {
  border-top: 1px solid #222;
  margin-top: 1rem;
}

a {
  color: #00e;
  text-decoration: none;
}
/* Centered class for images and other block elements */
.centered {
  display: block;
  margin-left: auto;
  margin-right: auto;
}
/* Page style */
.page-header {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 6rem 2rem;
  color: white;
}

.page-header__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45); /* optional: improves text contrast */
  z-index: 1;
}

.page-header__content {
  position: relative;
  z-index: 2; /* ensures text is above overlay */
  max-width: 800px;
}

.page-header__title {
  margin: 0 0 1rem;
  font-size: 3rem;
  line-height: 1.2;
}