body{
    font-family:Arial, sans-serif;
    background:#f4f6f9;
    margin:20px;
}

h1{
    text-align:center;
}

.container{
    display:flex;
    gap:40px;
    justify-content:center;
}

.controls{
    width:320px;
    background:white;
    padding:20px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,.1);
}

label{
    display:block;
    margin-top:10px;
}

input,
select{
    width:100%;
    padding:8px;
    box-sizing:border-box;
}

button{
    margin-top:10px;
    padding:10px;
    cursor:pointer;
    width:100%;
}

.stats{
    margin-top:20px;
    background:#f8f8f8;
    padding:10px;
    border-radius:5px;
}

.simulation{
    display:flex;
    flex-direction:column;
    align-items:center;
}

.balance{
    margin-bottom:20px;
    text-align:center;
}

.balance-screen{
    width:220px;
    height:60px;
    background:black;
    color:#00ff66;
    font-size:32px;
    font-weight:bold;
    display:flex;
    justify-content:center;
    align-items:center;
    border-radius:8px;
    font-family:"Courier New", monospace;
}

.balance-base{
    width:250px;
    height:20px;
    background:#666;
    border-radius:5px;
    margin:auto;
}

.bottle-container{
    text-align:center;
}

.bottle{
    width:220px;
    height:500px;
    border:5px solid #333;
    border-radius:25px 25px 45px 45px;
    position:relative;
    overflow:hidden;
    background:white;
}

.layer{
    position:absolute;
    left:0;
    width:100%;
    border-top:1px solid rgba(255,255,255,.5);
    display:flex;
    justify-content:center;
    align-items:center;
    font-weight:bold;
    color:black;
    font-size:14px;
}

.layer-label{
    background:rgba(255,255,255,.75);
    padding:2px 6px;
    border-radius:4px;
}

.bottle-label{
    margin-top:10px;
    font-weight:bold;
}