body {
  background-color: #f0f8ff;
  color: #333;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #004080;
  color: white;
  padding: 20px;
  position: relative;
}

header a {
  color: white;
  text-decoration: none;
  position: absolute;
  right: 20px;
  top: 20px;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 10px 0;
  background-color: #e6f0ff;
  margin: 0;
}

nav a {
  color: #004080;
  text-decoration: none;
  font-weight: bold;
}

form {
  max-width: 600px;
  margin: 20px auto;
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

input, textarea, select, button {
  width: 100%;
  margin-bottom: 10px;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}

button {
  background-color: #007bff;
  color: white;
  border: none;
  cursor: pointer;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 8px 10px;
  border: 1px solid #ccc;
  text-align: left;
}

th {
  background-color: #007bff;
  color: white;
}

h2, h3 {
  margin-top: 20px;
  margin-bottom: 10px;
}