.bmi-under {
    background: #e3f2fd;
    color: #0d47a1;
}

.bmi-normal {
    background: #e8f5e9;
    color: #1b5e20;
}

.bmi-over {
    background: #fff8e1;
    color: #f57f17;
}

.bmi-obese {
    background: #ffebee;
    color: #b71c1c;
}

.bmi-info-box {
    margin: 20px 0;
    padding: 15px;
    border-radius: 8px;
    background: #f5f5f5;
    line-height: 1.6;

    max-width: 360px;
    width: 100%;
}

.bmi-info-box ul {
    margin-top: 10px;
    padding-left: 20px;
}

.bmi-info-box small {
    display: block;
    margin-top: 10px;
    color: #666;
}

.bmi-info-box h2 {
    margin-top: 0;
    font-size: 1.2rem;
}

.bmi-info-box p {
    margin-bottom: 10px;
}

select {
    width: 100%;
    padding: 10px 12px;
    font-size: 16px;
    border-radius: 6px;
    border: 1px solid #ccc;
    background: #fff;
    line-height: 1.4;
    
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

select:focus {
    outline: none;
    border-color: #1b5e20;
    box-shadow: 0 0 0 2px rgba(27,94,32,0.15);
}