body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: linear-gradient(to bottom right, #bbdefb, #e3f2fd);
  background-attachment: fixed;
  background-size: cover;
  color: #333;
  text-align: center;
}
header {
  background: linear-gradient(to right, #2196f3, #64b5f6);
  color: white;
  padding: 2rem 1rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
.lang-switcher {
  margin-top: 1rem;
}
.lang-switcher button {
  margin: 0 5px;
  padding: 6px 12px;
  font-weight: bold;
  border: none;
  border-radius: 5px;
  background-color: #ffffff;
  color: #1976d2;
  cursor: pointer;
  transition: all 0.3s ease;
}
.lang-switcher button:hover,
.lang-switcher button.active {
  background-color: #1976d2;
  color: white;
}
main {
  padding: 2rem;
  background-color: #ffffff;
  margin: 2rem auto;
  max-width: 900px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}
h1, h2 {
  color: #0d47a1;
}
section {
  margin-bottom: 2.5rem;
}
section ul {
  list-style: none;
  padding: 0;
}
section ul li {
  margin-bottom: 0.5rem;
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
a {
  color: #1976d2;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
footer {
  background-color: #f1f1f1;
  padding: 1rem;
  font-size: 0.9rem;
  margin-top: 2rem;
  color: #555;
}
.social-icons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 1rem;
}
.social-icons a {
  font-size: 2rem;
  text-decoration: none;
  color: #1976d2;
  transition: transform 0.2s;
}
.social-icons a:hover {
  transform: scale(1.2);
  color: #0d47a1;
}
nav ul {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
nav ul li a {
  text-decoration: none;
  color: #0d47a1;
  font-weight: 600;
  font-size: 1.1rem;
  transition: color 0.3s ease;
}
nav ul li a:hover {
  color: #1565c0;
}