body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container, .dashboard-container, .exams-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.login-container h1, .dashboard-container h1, .exams-container h1 {
    margin-bottom: 20px;
}

.login-container form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.login-container label, .login-container input, .login-container button {
    margin-bottom: 10px;
    width: 100%;
}

.login-container input {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.login-container button {
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
}

.login-container button:hover {
    background-color: #0056b3;
}

.dashboard-container .header {
    display: flex;
    align-items: center;
    justify-content: center;
}

.dashboard-container .logo {
    width: 50px;
    height: 50px;
    margin-right: 20px;
}

.dashboard-container button {
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
    margin: 10px;
}

.dashboard-container button:hover {
    background-color: #0056b3;
}

.exams-container ul {
    list-style-type: none;
    padding: 0;
}

.exams-container li {
    margin: 10px 0;
}

.exams-container a {
    color: #007bff;
    text-decoration: none;
}

.exams-container a:hover {
    text-decoration: underline;
}