body {
  font-family: Arial, sans-serif;
  background: #f2f2f2;
  margin: 0;
  padding: 0;
}

.navbar {
  background: #007BFF;
  color: white;
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links a {
  color: white;
  text-decoration: none;
  margin-left: 15px;
}

.nav-links a.active,
.nav-links a:hover {
  text-decoration: underline;
}

.container {
  padding: 20px;
}

table {
  width: 100%;
  background: white;
  border-collapse: collapse;
  margin-top: 15px;
}

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

form input, form button {
  padding: 10px;
  margin: 5px 0;
  width: 100%;
  box-sizing: border-box;
}

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

button:hover {
  background: #0056b3;
}

.login-container {
  width: 300px;
  margin: 100px auto;
  padding: 20px;
  background: white;
  border-radius: 10px;
}