body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background-color: #f5f5f5;
  color: #333;
}

header, footer {
  background-color: #222;
  color: #fff;
  padding: 10px;
  text-align: center;
}

header a, footer a {
  color: #90cdf4;
  text-decoration: none;
}

main {
  max-width: 800px;
  margin: 30px auto;
  padding: 5px 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

section {
  margin-bottom: 30px;
}

h1, h2 {
  color: #2c5282;
}

h3 {
  margin-top: 15px;
  color: #4a5568;
}

ul {
  padding-left: 20px;
}

a:hover {
  text-decoration: underline;
}

#profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
    padding: 10px;
}


#profile h1, p {
    margin: 0;
    padding: 5px;
}

header nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  background-color: #222;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

header nav ul li {
    display: inline-block;
}

header nav ul li a {
    display: block;
    padding: 8px 14px;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s;
    font-weight: 500;
}

header nav ul li a:hover,
header nav ul li a:focus {
    background: #2c5282;
    color: #fff;
    text-decoration: none;
}