body{
    margin:0;
    font-family:Arial,sans-serif;
    background:#101820;
    color:#fff;
}

.container{
    max-width:900px;
    margin:auto;
    text-align:center;
    padding:50px 20px;
}

h1{
    font-size:42px;
    margin-bottom:15px;
}

.subtitle{
    color:#ccc;
    margin-bottom:30px;
}

.status{
    margin-top:30px;
    font-size:22px;
    font-weight:bold;
    color:#ffd700;
}

.boxes{
    position:relative;
    display:flex;
    justify-content:center;
    gap:30px;
    flex-wrap:wrap;
    margin-top:30px;
}

.box{
    position:relative;
    width:180px;
    height:180px;
    border-radius:20px;
    cursor:pointer;
    overflow:hidden;
    box-shadow:0 0 25px rgba(255,215,0,.5);
    transition:.3s;
}

.box:hover{
    transform:translateY(-10px);
}

.front,
.back{
    position:absolute;
    inset:0;
    display:flex;
    align-items:center;
    justify-content:center;
    transition:.5s;
}

.front{
    background:linear-gradient(135deg,#ffd700,#ffb700);
    color:#111;
    font-size:48px;
    font-weight:bold;
}

.back{
    background:linear-gradient(135deg,#ffd700,#ffb700);
    font-size:90px;
    opacity:0;
}

.box.closed .front{
    opacity:0;
}

.box.closed .back{
    opacity:1;
}

.box.shuffle-one{
    animation:shuffleOne 3s ease-in-out;
}

.box.shuffle-two{
    animation:shuffleTwo 3s ease-in-out;
}

.box.shuffle-three{
    animation:shuffleThree 3s ease-in-out;
}

@keyframes shuffleOne{
    0%{ transform:translate(0,0); }
    20%{ transform:translate(210px,0); }
    40%{ transform:translate(210px,40px); }
    60%{ transform:translate(420px,0); }
    80%{ transform:translate(210px,-30px); }
    100%{ transform:translate(0,0); }
}

@keyframes shuffleTwo{
    0%{ transform:translate(0,0); }
    20%{ transform:translate(-210px,0); }
    40%{ transform:translate(210px,-40px); }
    60%{ transform:translate(-210px,30px); }
    80%{ transform:translate(210px,0); }
    100%{ transform:translate(0,0); }
}

@keyframes shuffleThree{
    0%{ transform:translate(0,0); }
    20%{ transform:translate(-210px,0); }
    40%{ transform:translate(-420px,35px); }
    60%{ transform:translate(-210px,-30px); }
    80%{ transform:translate(-420px,0); }
    100%{ transform:translate(0,0); }
}

.popup{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,.8);
    display:none;
    align-items:center;
    justify-content:center;
    z-index:999;
}

.popup.show{
    display:flex;
}

.popup-box{
    background:#1a2430;
    width:90%;
    max-width:450px;
    border-radius:20px;
    padding:35px;
    box-sizing:border-box;
}

.popup-box h2{
    margin-top:0;
}

.btn{
    display:inline-block;
    margin-top:20px;
    padding:15px 35px;
    background:#ffd700;
    color:#000;
    text-decoration:none;
    border-radius:10px;
    font-weight:bold;
}

.result{
    margin-top:50px;
}

.success{
    font-size:40px;
    margin-bottom:15px;
}

.prize{
    font-size:24px;
}

@media(max-width:768px){

    h1{
        font-size:32px;
    }

    .box{
        width:120px;
        height:120px;
    }

    .front{
        font-size:34px;
    }

    .back{
        font-size:60px;
    }

    .status{
        font-size:18px;
    }

    .boxes{
        gap:15px;
    }

    @keyframes shuffleOne{
        0%{ transform:translate(0,0); }
        20%{ transform:translate(135px,0); }
        40%{ transform:translate(135px,30px); }
        60%{ transform:translate(270px,0); }
        80%{ transform:translate(135px,-20px); }
        100%{ transform:translate(0,0); }
    }

    @keyframes shuffleTwo{
        0%{ transform:translate(0,0); }
        20%{ transform:translate(-135px,0); }
        40%{ transform:translate(135px,-30px); }
        60%{ transform:translate(-135px,20px); }
        80%{ transform:translate(135px,0); }
        100%{ transform:translate(0,0); }
    }

    @keyframes shuffleThree{
        0%{ transform:translate(0,0); }
        20%{ transform:translate(-135px,0); }
        40%{ transform:translate(-270px,25px); }
        60%{ transform:translate(-135px,-20px); }
        80%{ transform:translate(-270px,0); }
        100%{ transform:translate(0,0); }
    }
}