body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #222;
  margin: 0;
  background-color: #fdfdfd;
}
header {
  background: #004466;
  color: #fff;
  text-align: center;
  padding: 2rem 1rem;
}
header h1 { margin: 0; font-size: 2.2rem; }
nav a {
  color: #cce6ff;
  margin: 0 1rem;
  text-decoration: none;
  font-weight: 500;
}
nav a:hover { text-decoration: underline; }
main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}
h2 {
  color: #004466;
  border-bottom: 2px solid #004466;
  padding-bottom: 0.3rem;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #eee;
  font-size: 0.9rem;
}
/* Profile section layout */
.profile {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.profile-img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #004466;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.profile-text {
  flex: 1;
  min-width: 250px;
}