*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    background:#0f172a;
    color:#ffffff;
    font-family:Arial,sans-serif;
}

.container{
    max-width:500px;
    margin:auto;
    padding:20px;
    text-align:center;
}

h1{
    margin-top:20px;
    margin-bottom:30px;
}

.gauge{
    width:250px;
    height:250px;
    border-radius:50%;
    border:8px solid #334155;
    margin:auto;

    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
}

#speedValue{
    font-size:60px;
    font-weight:bold;
}

.unit{
    opacity:.7;
}

button{
    margin-top:30px;

    width:100%;
    padding:15px;

    border:none;
    border-radius:12px;

    background:#2563eb;
    color:white;

    font-size:18px;
    cursor:pointer;
}

.results{
    margin-top:30px;

    display:grid;
    gap:15px;
}

.card{
    background:#1e293b;

    padding:20px;

    border-radius:12px;

    display:flex;
    justify-content:space-between;
}