body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background-color: #f5f5f5;
}

header {
  background-color: #003366;
  color: white;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header .logo img {
  height: 50px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  padding: 0;
  margin: 0;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

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

main {
  padding: 20px;
  max-width: 1000px;
  margin: auto;
}

h2, h3 {
  color: #003366;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  background: white;
  box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

table th, table td {
  padding: 12px;
  border: 1px solid #ccc;
  text-align: left;
}

form input, form button {
  padding: 10px;
  margin: 5px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 14px;
}

form button {
  background-color: #0066cc;
  color: white;
  border: none;
  cursor: pointer;
}

form button:hover {
  background-color: #004c99;
}