.section-cert {
    padding: 60px 0;
    background: #f7f7f7;
}

.section-cert h1 {
    font-weight: 600;
    letter-spacing: 1px;
}
.section-cert p {
    padding-left: 50px;
    font-size: 1.3em;
    line-height: 1.8;
    word-spacing: 7px;
    letter-spacing: 2px;    
}

.title-underline {
    width: 40px;
    height: 3px;
    background: #cfeefc;
    margin: 12px auto 28px;
    border-radius: 2px;
}

.btn-cert {
    min-width: 200px;
}

.certificate-badge {
    max-width: 320px;
    width: 100%;
    height: auto;
    display: inline-block;
    /* sombra suave */
    filter: drop-shadow(0 8px 18px rgba(0,0,0,0.28));
}

@media (min-width: 768px) {
    .left-col {
        padding-right: 3rem;
    }
    .right-col {
        padding-left: 3rem;
    }
}