section.fullscreen {
    position: relative;
    width: 100%;
    height: 100vh;  ekranın tamamını kaplasın 
    overflow: hidden;
}

    section.fullscreen video {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;  oranı koruyarak tüm alanı doldur 
    }
#hero-owl .flickity-viewport,
#hero-owl .flickity-slider,
#hero-owl .polo-carousel-item {
    all: unset !important;
}
/* Navigasyon okları */
.hero-owl .owl-nav button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.4) !important;
    color: #fff !important;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 32px;
    line-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 5;
    transition: background 0.3s;
}

    .hero-owl .owl-nav button:hover {
        background: rgba(0,0,0,0.7) !important;
    }

/* Sol ve sağ konumlandırma */
.hero-owl .owl-nav .owl-prev {
    left: 20px;
}

.hero-owl .owl-nav .owl-next {
    right: 20px;
}

/* İçindeki default text (‹ ›) */
.hero-owl .owl-nav button span {
    font-size: 2rem;
    line-height: 1;
}