body {
    background-color: #f5f5f5;
    font-family: Arial, sans-serif;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    background-color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333333;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

.input-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
}

.input-container label {
    flex: 1;
    margin-right: 10px;
}

.input-container input[type="text"],
.input-container input[type="password"] {
    flex: 2;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button[type="submit"] {
    display: block;
    width: 100%;
    margin: 20px 0;
    padding: 10px 0;
    border: none;
    border-radius: 4px;
    background-color: #008000;
    color: #ffffff;
    font-weight: bold;
    cursor: pointer;
}

button[type="submit"]:hover {
    background-color: #006400;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
    padding: .75rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: .25rem;
}

@media (max-width: 768px) {
    .container {
        margin: 10px;
    }
}