body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f5f7fa;
  color: #333;
  margin: 0;
  padding: 0;
}

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 0;
  background-color: #ffffff;
}

.logo img {
  display: block;
  margin: 0 auto;
  max-width: 300px;
  height: auto;
}

.nav-menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
  padding: 0;
  margin-top: 15px;
  gap: 20px;
}

.nav-menu li a {
  text-decoration: none;
  font-weight: bold;
  color: #333;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 30px;
}

footer {
  text-align: center;
  padding: 20px;
  background-color: #e1e4ea;
  font-size: 0.9rem;
}