header {
  background: #003366;
  color: white;
  padding: 2rem;
  text-align: center;
  position: relative;
}
body {
  font-family: "Segoe UI", sans-serif;
  margin: 0;
  padding: 0;
  background: #f8f9fa;
  color: #212529;
}
h1 {
  margin: 0.5rem 0;
}
.lang-btn {
  background: white;
  color: #003366;
  border: none;
  border-radius: 5px;
  margin: 0.5rem auto;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-weight: bold;
}
.container {
  max-width: 900px;
  margin: 2rem auto;
  padding: 1rem;
}
.profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.profile img {
  border-radius: 50%;
  width: 180px;
  height: 180px;
  object-fit: cover;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
.bio {
  font-size: 1.25rem;
  text-align: center;
}
.section {
  text-align: justify;
  clear: both;
}
.section img {
  width: 256px;
  float: right;
  margin: 0 0 1rem 2rem;
  border-radius: 5%;
  box-shadow: 5px 5px 5px rgba(0,0,0,0.2);
}
.optional { }
@media (max-width: 640px) {
  .section img {
    width: 256px;
    float: none;
    display: block;
    margin: 1rem auto 1.5rem;
    border-radius: 5%;
    box-shadow: 5px 5px 5px rgba(0,0,0,0.2);
  }
  .optional {
    display: none !important;
  }
}
.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
}
.links a {
  text-decoration: none;
  padding: 0.6rem 1rem;
  border: 1px solid #003366;
  border-radius: 5px;
  color: #003366;
  background: white;
  transition: 0.2s ease-in-out;
}
.links a:hover {
  background: #003366;
  color: white;
}
footer {
  text-align: center;
  font-size: 0.9rem;
  color: #888;
  padding: 2rem 0;
  clear: both;
}