/* Google Material Design inspired styles for elvis.html */

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #212121;
    text-align: center;
}

header {
    background-color: #6200ea;
    color: #ffffff;
    padding: 16px 24px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

header h1 {
    margin: 0;
    font-size: 24px;
    font-weight: 500;
}

main {
    padding: 24px;
}

.card {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    margin-bottom: 16px;
    overflow: hidden;
}

.card-header {
    background-color: #6200ea;
    color: #ffffff;
    padding: 16px;
    font-size: 18px;
    font-weight: 500;
}

.card-content {
    padding: 16px;
    font-size: 16px;
    color: #424242;
}

button {
    background-color: #6200ea;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #3700b3;
}

button:disabled {
    background-color: #bdbdbd;
    cursor: not-allowed;
}

#txtOutput {
    margin-top: 30px;
    padding: 16px;
    font-size: 30px;
    color: #424242;
}

footer {
    text-align: center;
    padding: 16px;
    background-color: #eeeeee;
    color: #757575;
    font-size: 14px;
}