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

html,body{
    height:100%;
    width:100%;
}

/* Gradient Background */
body{
    background: linear-gradient(135deg,#a18cd1,#fbc2eb);
}

/* Center Layout */
#main{
    height:100%;
    display:flex;
    align-items:center;
    justify-content:center;
}

/* Glass Panel */
#panel{
    width:80%;
    height:85%;
    border-radius:15px;
    overflow:hidden;
    backdrop-filter: blur(15px);
    background: rgba(255,255,255,0.2);
    box-shadow:0 10px 30px rgba(0,0,0,0.3);
}

/* Top Panel */
#ptop{
    height:100px;
    display:flex;
    justify-content:space-around;
    align-items:center;
    background:#8e44ad;
    color:white;
}

.elem{
    display:flex;
    gap:15px;
    align-items:center;
}

.box{
    background:white;
    color:#8e44ad;
    padding:10px 20px;
    border-radius:6px;
    font-weight:bold;
    transition:0.2s;
}

/* Bottom Panel */
#pbtm{
    height:calc(100% - 100px);
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    align-items:center;
    gap:10px;
    padding:20px;
}

/* Bubble */
.bubble{
    width:60px;
    height:60px;
    border-radius:50%;
    background:#8e44ad;
    color:white;
    display:flex;
    justify-content:center;
    align-items:center;
    cursor:pointer;
    transition:0.2s;
}

.bubble:hover{
    transform:scale(1.2);
    background:#5e3370;
}

.bubble:active{
    transform:scale(0.8);
}

/* Start Button */
#startBtn{
    padding:15px 30px;
    font-size:18px;
    border:none;
    border-radius:8px;
    background:#8e44ad;
    color:white;
    cursor:pointer;
}

#startBtn:hover{
    background:#6c3483;
}

/* Game Over */
.gameover{
    text-align:center;
}

.gameover button{
    margin-top:20px;
    padding:12px 25px;
    border:none;
    background:#8e44ad;
    color:white;
    border-radius:6px;
    cursor:pointer;
}

/* Responsive */
@media(max-width:600px){
    .bubble{
        width:40px;
        height:40px;
    }
}