.bmi-widget {
    max-width: 500px;
    background:#f9f9f9;
    padding:20px;
    border-radius:12px;
    box-shadow:0px 4px 12px rgba(0,0,0,0.15);
    text-align:center;
}
.bmi-widget input {
    width:90%;
    padding:10px;
    margin:8px 0;
    font-size:16px;
}
.bmi-widget button {
    padding:10px 20px;
    font-size:16px;
    border:none;
    border-radius:8px;
    background:#0073aa;
    color:#fff;
    cursor:pointer;
    transition:0.3s;
}
.bmi-widget button:hover {
    background:#005177;
}
#bmi-pro-result {
    margin-top:15px;
    font-size:16px;
    font-weight:bold;
}