body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
  background: #f4f4f4;
}

header, footer {
  background: #004080;
  color: white;
  padding: 10px 20px;
  text-align: center;
}

section, form, nav, table {
  background: white;
  padding: 20px;
  margin: 20px 0;
  border-radius: 8px;
}

input, select, textarea, button {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  box-sizing: border-box;
}

button {
  background: #004080;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background: #003366;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #004080;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

table {
  border-collapse: collapse;
}

table th, table td {
  padding: 10px;
  text-align: left;
}

table th {
  background-color: #004080;
  color: white;
}