.mass-escore-wrapper {
    max-width: 500px;
    margin: 0 auto;
    padding: 1em;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    font-family: Arial, sans-serif;
}
.mass-escore-wrapper h2 {
    text-align: center;
    margin-bottom: 1em;
}
.mass-escore-group {
    margin-bottom: 1em;
}
.mass-escore-group label {
    display: block;
    margin-bottom: 0.5em;
    font-size: 1em;
}
#mass-escore-calculate {
    width: 100%;
    padding: 0.75em;
    background: #0073aa;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1.1em;
    cursor: pointer;
    margin-top: 1em;
}
#mass-escore-calculate:hover {
    background: #005177;
}
.mass-escore-result {
    margin-top: 1.5em;
    font-size: 1.2em;
    text-align: center;
    font-weight: bold;
}
@media (max-width: 600px) {
    .mass-escore-wrapper {
        padding: 0.5em;
    }
    .mass-escore-group label {
        font-size: 0.95em;
    }
}