/* başlık */

.title{
    text-align:center;
    font-size:32px;
    font-weight:bold;
    margin:40px 0;
}

/* galeri */

.sertifika-box{
    width:900px;
    margin:auto;
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:40px;
    justify-items:center;
}

/* kart */

.sertifika{
    width:362px;
    cursor:pointer;
}

.sertifika img{
    width:362px;
    height:594px;
    object-fit:contain;
    box-shadow:0 4px 12px rgba(0,0,0,0.2);
    border-radius:6px;
}


/* POPUP */

#popup{
    position:fixed;
    left:0;
    top:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,0.85);
    display:none;
    align-items:center;
    justify-content:center;
}

#popup img{
    width:562px;
    height:794px;
}

.close{
    position:absolute;
    top:40px;
    right:60px;
    font-size:40px;
    color:white;
    cursor:pointer;
}


/* responsive */

@media(max-width:900px){

.sertifika-box{
    grid-template-columns:1fr;
    width:95%;
}

.sertifika img{
    width:100%;
    height:auto;
}

#popup img{
    width:90%;
    height:auto;
}

}