.popup-arka {
    position: fixed;
    inset: 0;
    display: none;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,0,0.45);
    z-index: 9999;
}

.popup-arka.aktif {
    display: flex;
}

.popup {
    background: #242424;
    color: #fff;
    padding: 24px;
    border-radius: 10px;
    width: 320px;
    max-width: 90%;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    animation: acilis 0.25s ease;
}

@keyframes acilis {
    from {
        opacity: 0;
        transform: scale(0.85);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.popup img {
    width: 324px;
    height: 405px;
}