body{
background:#0f172a;
font-family:Arial;
color:white;
margin:0;
text-align:center;
}

.main{
margin-top:40px;
}

.header h1{
font-size:34px;
margin-bottom:5px;
}

.header p{
opacity:0.7;
}

.gauge-box{
width:320px;
margin:auto;
margin-top:30px;
}

.stats{
display:flex;
justify-content:center;
gap:40px;
margin-top:30px;
flex-wrap:wrap;
}

.card{
background:#1e293b;
padding:20px 30px;
border-radius:10px;
min-width:120px;
}

.card span{
display:block;
font-size:28px;
margin-top:5px;
font-weight:bold;
}

.start-btn{
margin-top:30px;
padding:14px 40px;
font-size:18px;
background:#00e676;
border:none;
border-radius:6px;
cursor:pointer;
}

.footer{
margin-top:40px;
opacity:0.6;
font-size:13px;
}