.sertifika-baslik {
    margin-top: 16px;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--title-color, #1a1a1a);
}

.sertifika-empty {
    text-align: center;
    padding: 60px 20px;
    font-size: 16px;
    color: #6c757d;
}

.gallery-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
}

.gallery-card .gallery-img {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
}

.gallery-card .gallery-img:after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    transition: 0.4s;
}

.gallery-card .gallery-img img {
    width: 100%;
    display: block;
}

.gallery-card .icon-btn {
    --btn-size: 50px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -20%);
    border-radius: 50%;
    background: transparent;
    border: 1px solid #fff;
    color: #fff;
    z-index: 1;
    opacity: 0;
    transition: 0.4s;
}

.gallery-card .icon-btn:hover {
    background: #fff;
    color: var(--theme-color, #64343e);
}

.gallery-card:hover .gallery-img:after {
    opacity: 1;
}

.gallery-card:hover .icon-btn {
    transform: translate(-50%, -50%);
    opacity: 1;
}