*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial,sans-serif;
}

body{
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background:linear-gradient(135deg,#141e30,#243b55);
    padding:15px;
}

.container{
    width:100%;
    max-width:500px;
    background:white;
    padding:35px 25px;
    border-radius:25px;
    text-align:center;
    box-shadow:0 10px 30px rgba(0,0,0,0.4);
    animation:pop 0.8s ease;
}

@keyframes pop{

    from{
        transform:scale(0.5);
        opacity:0;
    }

    to{
        transform:scale(1);
        opacity:1;
    }
}

h1{
    color:#243b55;
    margin-bottom:25px;
    font-size:50px;
    font-weight:bold;
}

p{
    margin-bottom:18px;
    color:#444;
    font-size:28px;
}

.score-box{
    display:flex;
    justify-content:space-between;
    gap:15px;
    margin-bottom:25px;
}

.score{
    flex:1;
    background:#243b55;
    color:white;
    padding:14px;
    border-radius:12px;
    font-size:26px;
}

input{
    width:100%;
    padding:18px;
    font-size:30px;
    border:3px solid #243b55;
    border-radius:15px;
    outline:none;
    margin-bottom:20px;
    text-align:center;
}

button{
    width:100%;
    padding:18px;
    font-size:30px;
    border:none;
    border-radius:15px;
    background:#243b55;
    color:white;
    cursor:pointer;
    transition:0.3s;
    margin-top:15px;
}

button:hover{
    background:#141e30;
}

#message{
    margin-top:20px;
    font-size:30px;
    font-weight:bold;
}

.win{
    color:green;
}

.lose{
    color:red;
}

/* Mobile Responsive */

@media(max-width:768px){

    .container{
        max-width:480px;
        padding:30px 22px;
    }

    h1{
        font-size:34px;
    }

    p{
        font-size:18px;
    }

    .score{
        font-size:16px;
        padding:10px;
    }

    input{
        font-size:18px;
        padding:14px;
    }

    button{
        font-size:18px;
        padding:14px;
    }

    #message{
        font-size:20px;
    }
}

/* Small Mobile */

@media(max-width:480px){

    .container{
        max-width:100%;
        padding:28px 18px;
        border-radius:20px;
    }

    h1{
        font-size:28px;
    }

    p{
        font-size:16px;
    }

    .score{
        font-size:15px;
        padding:9px;
    }

    input{
        font-size:17px;
        padding:13px;
    }

    button{
        font-size:17px;
        padding:13px;
    }

    #message{
        font-size:18px;
    }
}