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

.bmc-calculator{
    background:#f4f6f9;
    display:flex;
    justify-content:center;
    align-items:center;
    min-height:100vh;
    padding:20px;
}

.bmc-container{
    background:#fff;
    padding:30px;
    width:350px;
    max-width:100%;
    border-radius:15px;
    box-shadow:0 10px 25px rgba(0,0,0,0.1);
}

.bmc-container h1{
    text-align:center;
    margin-bottom:20px;
    color:#333;
}

.bmc-calculator .input-group{
    margin-bottom:15px;
}

.bmc-calculator label{
    display:block;
    margin-bottom:5px;
    font-weight:bold;
    color:#555;
}

.bmc-calculator input{
    width:100%;
    padding:12px;
    border:1px solid #ccc;
    border-radius:8px;
    font-size:16px;
}

.bmc-calc-btn{
    width:100%;
    padding:12px;
    background:#007bff;
    color:white;
    border:none;
    border-radius:8px;
    font-size:16px;
    cursor:pointer;
    transition:0.3s;
}

.bmc-calc-btn:hover{
    background:#0056b3;
}

.result{
    margin-top:20px;
    text-align:center;
    padding:15px;
    border-radius:10px;
    display:none;
}

.bmi-value{
    font-size:28px;
    font-weight:bold;
    margin-bottom:10px;
}

.category{
    font-size:18px;
    font-weight:bold;
}