body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
}

.main-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: #1662a3;
}

.header {
    text-align: center;
}

.logo {
    width: 120px;
    margin-bottom: 20px;
}

.login-container {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    width: 340px;
}

h2 {
    margin: 0 0 20px 0;
    color: #1662a3;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #666;
}

input[type="text"],
input[type="password"],
input[type="submit"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

input[type="submit"] {
    background-color: #1662a3;
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
}

input[type="submit"]:hover {
    background-color: #1662a3;
}

.error-message {
    color: #D8000C;
    background-color: #FFD2D2;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 4px;
    text-align: center;
}