@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 10px rgba(255, 204, 0, 0.5);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 20px rgba(255, 204, 0, 0.8);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 10px rgba(255, 204, 0, 0.5);
    }
}

body {
    font-family: "Madimi One", sans-serif;
    font-weight: 400;
    font-style: normal;
    text-align: center;
    margin: 50px;
    background: url('numbers.jpg') no-repeat center center fixed;
    background-size: cover;
    color: black;
}

.container {
    background: rgba(255, 255, 255, 0.2);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
    display: inline-block;
}

label{
    font-size: 20px;
}

input {
    font-family: "Madimi One", sans-serif;
    padding: 10px;
    margin: 10px;
    width: 120px;
    border: none;
    border-radius: 5px;
    text-align: center;
    font-size: 17px;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background: #ffcc00;
    color: black;
    font-weight: bold;
    font-size: 18px;
    cursor: pointer;
    transition: 0.3s;
    animation: pulse 1.5s infinite;
}

button:hover {
    background: #ffdd33;
    transform: scale(1.1);
    box-shadow: 0 0 25px rgba(255, 221, 51, 1);
}

ul {
    list-style-type: none;
    padding: 0;
    margin-top: 20px;
}

li {
    background: rgba(255, 255, 255, 0.3);
    padding: 10px;
    margin: 5px 0;
    border-radius: 5px;
    font-size: 18px;
}

/* Media Queries para Responsividade */  
@media (max-width: 768px) {  
    .container {  
        width: 85%;  
        padding: 25px; 
    }  

    input {  
        width: 80%; 
    }  

    button {  
        width: 50%; 
    }  
}