/* Galeri düzeni */
.gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.gallery img {
    width: 100%;
    height: auto;
    transition: 0.3s;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

.gallery img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Dikey video oranı için özel sınıf */
.sergi .ratio-vertical,
.yarisma .ratio-vertical,
.soylesi .ratio-vertical,
.duyuru .ratio-vertical,
.sayfa .ratio-vertical {
    position: relative;
    width: 40%;
    padding-bottom: 49.375%;
    aspect-ratio: 9/16;
    background: #f8f9fa;
    border: 1px solid #ddd;
    overflow: hidden;
}

.sergi .ratio-vertical iframe,
.yarisma .ratio-vertical iframe,
.soylesi .ratio-vertical iframe,
.duyuru .ratio-vertical iframe,
.sayfa .ratio-vertical iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Kare (1:1) video oranı için özel sınıf */
.sergi .ratio-square,
.yarisma .ratio-square,
.soylesi .ratio-square,
.duyuru .ratio-square,
.sayfa .ratio-square {
    position: relative;
    width: 80%;
    padding-bottom: 49.375%;
    aspect-ratio: 1/1;
    background: #f8f9fa;
    border: 1px solid #ddd;
    overflow: hidden;
}

.sergi .ratio-square iframe,
.yarisma .ratio-square iframe,
.soylesi .ratio-square iframe,
.duyuru .ratio-square iframe,
.sayfa .ratio-square iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* 4:3 video oranı için özel sınıf */
.sergi .ratio-4by3,
.yarisma .ratio-4by3,
.soylesi .ratio-4by3,
.duyuru .ratio-4by3,
.sayfa .ratio-4by3 {
    position: relative;
    width: 80%;
    padding-bottom: 49.375%;
    aspect-ratio: 4/3;
    background: #f8f9fa;
    border: 1px solid #ddd;
    overflow: hidden;
}

.sergi .ratio-4by3 iframe,
.yarisma .ratio-4by3 iframe,
.soylesi .ratio-4by3 iframe,
.duyuru .ratio-4by3 iframe,
.sayfa .ratio-4by3 iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* 16:9 (yatay) video oranı için özel sınıf */
.sergi .ratio-16x9,
.yarisma .ratio-16x9,
.soylesi .ratio-16x9,
.duyuru .ratio-16x9,
.sayfa .ratio-16x9 {
    position: relative;
    width: 80%;
    padding-bottom: 28.125%; /* 16:9 oranı için (9/16 = 0.5625, 0.5625*50% = 28.125%) */
    aspect-ratio: 16/9;
    background: #f8f9fa;
    border: 1px solid #ddd;
    overflow: hidden;
}

.sergi .ratio-16x9 iframe,
.yarisma .ratio-16x9 iframe,
.soylesi .ratio-16x9 iframe,
.duyuru .ratio-16x9 iframe,
.sayfa .ratio-16x9 iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Dikey video oranı için özel sınıf */
.ratio-vertical {
    position: relative;
    width: 100%;
    aspect-ratio: 9/16;
    background: #f8f9fa;
    border: 1px solid #ddd;
    overflow: hidden;
}

.ratio-vertical iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Kare (1:1) video oranı için özel sınıf */
.ratio-square {
    position: relative;
    width: 100%;
    aspect-ratio: 1/1;
    background: #f8f9fa;
    border: 1px solid #ddd;
    overflow: hidden;
}

.ratio-square iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* 4:3 video oranı için özel sınıf */
.ratio-4by3 {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    background: #f8f9fa;
    border: 1px solid #ddd;
    overflow: hidden;
}

.ratio-4by3 iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* 16:9 (yatay) video oranı için özel sınıf */
.ratio-16x9 {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: #f8f9fa;
    border: 1px solid #ddd;
    overflow: hidden;
}

.ratio-16x9 iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}


/* Responsive iframe */
.responsive-iframe {
    width: 70%;
    height: 0;
    padding-bottom: 39.375%;
    position: relative;
    margin: 0 auto;
}

.responsive-iframe iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Sergi iç görsel */
.sergi-ic-gorsel,
.yarisma-ic-gorsel,
.soylesi-ic-gorsel,
.duyuru-ic-gorsel,
.sayfa-ic-gorsel {
    width: 20%;
    height: auto;
    float: none;
    display: block;
    margin: 0 auto 20px;
}

/* Sayfa kapak görseli */
.sayfa-kapak-gorsel {
    width: 50%;
    height: auto;
    float: left;
    margin-right: 40px;
    margin-bottom: 40px;
}

/* Sergi afiş */
.sergi-afis,
.yarisma-afis,
.soylesi-afis,
.duyuru-afis,
.sayfa-afis {
    width: 50%;
    height: auto;
    float: left;
    margin-right: 40px;
    margin-bottom: 40px;
}

/* Sergi açıklama yazıları için stil */
.sergi-aciklama p,
.yarisma-aciklama p,
.soylesi-aciklama p,
.duyuru-aciklama p,
.sayfa-aciklama p {
    font-size: 19px;
    text-align: justify;
    text-justify: inter-word;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.sergi-aciklama h3,
.yarisma-aciklama h3,
.soylesi-aciklama h3,
.duyuru-aciklama h3,
.sayfa-aciklama h3 {
    font-size: 25px;
    text-align: left;
    margin-bottom: 1.5rem;
}

/* Ana Slider Stilleri */
.carousel {
    position: relative;
    overflow: hidden;
    margin-bottom: 3rem;
    background: #fff;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    touch-action: pan-y pinch-zoom;
    -webkit-overflow-scrolling: touch;
}

.carousel-inner {
    position: relative;
    width: 100%;
    overflow: hidden;
    touch-action: pan-x pan-y;
    -webkit-overflow-scrolling: touch;
}

.carousel-item {
    position: relative;
    display: none;
    float: left;
    width: 100%;
    margin-right: -100%;
    backface-visibility: hidden;
    transition: transform 0.6s ease-in-out;
    background-color: #fff;
    border-radius: 0;
    overflow: hidden;
    margin: 0;
    height: 700px;
    transform: translateX(0);
    will-change: transform;
    -webkit-transform: translateZ(0);
    -webkit-backface-visibility: hidden;
}

.carousel-item.active {
    display: block;
    transform: translateX(0);
}

.carousel-item-next,
.carousel-item-prev {
    display: block;
    position: absolute;
    top: 0;
}

.carousel-item-next:not(.carousel-item-start),
.active.carousel-item-end {
    transform: translateX(100%);
}

.carousel-item-prev:not(.carousel-item-end),
.active.carousel-item-start {
    transform: translateX(-100%);
}

.carousel-item-next.carousel-item-start,
.carousel-item-prev.carousel-item-end {
    transform: translateX(0);
}

.carousel-item .row {
    height: 100%;
    margin: 0;
}

.carousel-item .col-md-6 {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    
    position: relative;
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #f8f9fa;
    max-height: 700px;
}

.carousel-caption {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0rem;
    color: #333;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #f8f9fa;
    text-align: center;
    max-height: 100%;
    overflow-y: auto;
    touch-action: pan-y;
    -webkit-overflow-scrolling: touch;
    pointer-events: auto;
}

.carousel-caption h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding: 0.5rem;
    color: #333;
    line-height: 1.3;
    width: 100%;
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.carousel-caption .badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 24px;
    border-radius: 1px;
}

.carousel-caption .text-muted {
    font-size: 1rem;
    margin-bottom: 2rem;
    color: #666;
    width: 100%;
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.carousel-caption .btn-outline-dark {
    letter-spacing: 0.5px;
    text-transform: uppercase;
    display: inline-block;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border: 1px solid #333;
    border-radius: 30px;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.carousel-caption .btn-outline-dark:hover {
    background-color: #333;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.carousel-control-prev {
    left: auto !important;
    right: 0 !important;
}

.carousel-control-next {
    right: auto !important;
    left: 0 !important;
}

.carousel-navigation {
    position: absolute;
    bottom: 40px;
    right: 2rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.navigation-btn {
    width: 3rem !important;
    height: 3rem !important;
    border-radius: 15% !important;
    background-color: rgba(167, 167, 167, 0.9) !important;
    border: 1px solid #ddd !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: all 0.3s ease !important;
    cursor: pointer !important;
    color: #000000 !important;
    position: relative !important;
}

.navigation-btn:hover {
    background-color: #333 !important;
    color: #fff !important;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    width: auto;
    height: auto;
    background-image: none !important;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-control-prev-icon i,
.carousel-control-next-icon i {
    font-size: 25px;
}
.slick-dots {
    position: absolute;
    bottom: 12px;
    right: 55px;
    display: flex;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
    z-index: 10;
}

.slick-dots .dot {
    width: 12px;
    height: 12px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background-color: #c7c7c7;
    cursor: pointer;
    transition: all 0.3s ease;
}

.slick-dots .dot:hover {
    background-color: #818181;
}

.slick-dots .dot.active {
    background-color: #797979;
    transform: scale(1.2);
}


/* Tüm Etkinlikler Bölümü */
.tum-sergiler-anasayfa {
    margin-bottom: 30px;
}

.anasayfa-tum-sergiler-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    row-gap: 40px;
}

.anasayfa-tum-sergiler-item {
    width: 100%;
}

.anasayfa-tum-sergiler-card {
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.anasayfa-tum-sergiler-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.anasayfa-tum-sergiler-card img {
    width: 100%;
    height: 300px;
    object-fit: contain;
    background-color: #f8f9fa;
    padding: 15px;
}

.anasayfa-tum-sergiler-info {
    padding: 1.5rem;
    flex-grow: 1;
    flex-direction: column;
}

.anasayfa-tum-sergiler-info h3 {
    font-size: 1.1rem;
    margin: 1rem 0;
    line-height: 1.4;
    height: 3.1rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.sergi-tarih {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}
.btn2 {
    background-color: #3c3f44;
    border-color: #3c3f44;
    color: #fff;
    transition: all 0.3s ease;
    border-radius: 1px;  
    width: 100%;
    margin-top: auto;
}

.btn2:hover {
    color: #fff;
    background-color: #7c4b4b;
}

.btn2:active,
.btn2.active {
    background-color: #6c1733 !important;
    border-color: #6c1733 !important;
    color: white !important;
}

.index-sayfasi .category-slider .section-title {
    font-size: 24px;
    margin-bottom: 1.5rem;
    font-weight: 500;
    position: relative;
    padding-bottom: 15px;
    border-bottom: 3px solid #e0e0e0;
    display: flex;
    align-items: center;
}

/* Kişisel Sergi Kategorisi */
.index-sayfasi .category-slider[data-category="1"] .section-title::before {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 50px;
    height: 5px;
    background-color: var(--kategori-1-color);
}

/* Karma Sergi Kategorisi */
.index-sayfasi .category-slider[data-category="2"] .section-title::before {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 50px;
    height: 5px;
    background-color: var(--kategori-2-color);
}

/* Öğrenci Sergisi Kategorisi */
.index-sayfasi .category-slider[data-category="3"] .section-title::before {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 50px;
    height: 5px;
    background-color: var(--kategori-3-color);
}

/* Yarışma Kategorisi */
.index-sayfasi .category-slider[data-category="yarisma"] .section-title::before {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 50px;
    height: 5px;
    background-color: var(--yarisma-color, #FF8C00);
}

/* Söyleşi Kategorisi */
.index-sayfasi .category-slider[data-category="soylesi"] .section-title::before {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 50px;
    height: 5px;
    background-color: var(--soylesi-color, #9932CC);
}

.index-sayfasi .sergi-card {
    background: #ffffff00;
    border-radius: 0px;
    overflow: hidden;
    box-shadow: 0 0px 0px rgb(255, 255, 255);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 0px solid #ffffff;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.index-sayfasi .sergi-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.index-sayfasi .sergi-card img {
    width: 100%;
    height: 423px;
    object-fit: contain;
    background-color: #ffffff00;
    padding: 0 45px 0 45px;
}

.index-sayfasi .sergi-info {
    padding: 1rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.index-sayfasi .sergi-info h3 {
    font-size: 1.1rem;
    margin: 0 0 0.5rem;
    line-height: 1.4;
    height: 3.1rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.index-sayfasi .sergi-tarih {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}
/* Index Sayfası Kategori Slider Stilleri */
.index-sayfasi .category-slider {
    position: relative;
    margin-bottom: 3rem;
    padding: 40px;
}


/* Kategori Rozetleri */
.kategori-rozet {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    color: #fff;
}

/* Kişisel Sergi Kategorisi */
.kategori-1 {
    background-color: var(--kategori-1-color);
}

/* Karma Sergi Kategorisi */
.kategori-2 {
    background-color: var(--kategori-2-color);
}

/* Öğrenci Sergisi Kategorisi */
.kategori-3 {
    background-color: var(--kategori-3-color);
}

.yarisma-rozet {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    background-color: var(--yarisma-color);
    color: white;
}

.soylesi-rozet {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    background-color: var(--soylesi-color);
    color: white;
}

/* Index Sayfası Kategori Slider Stilleri */
.index-sayfasi .category-slider {
    position: relative;
    margin-bottom: 3rem;
    padding: 40px;
}

/* Kişisel Sergi Kategorisi */
.index-sayfasi .category-slider[data-category="1"] {
    background: var(--kategori-1-bg);
}

/* Karma Sergi Kategorisi */
.index-sayfasi .category-slider[data-category="2"] {
    background: var(--kategori-2-bg);
}

/* Öğrenci Sergisi Kategorisi */
.index-sayfasi .category-slider[data-category="3"] {
    background: var(--kategori-3-bg);
}

/* Yarışma Kategorisi */
.index-sayfasi .category-slider[data-category="yarisma"] {
    background: var(--yarisma-bg);
}

/* Söyleşi Kategorisi */
.index-sayfasi .category-slider[data-category="soylesi"] {
    background: var(--soylesi-bg);
 }

/* Responsive Tasarım */
@media (max-width: 1024px) {
    .gallery {
        justify-content: center;
    }
    .gallery .col-md-3 {
        flex: 0 0 50%;
    }
    .sergi-ic-gorsel,
    .yarisma-ic-gorsel,
    .soylesi-ic-gorsel,
    .duyuru-ic-gorsel,
    .sayfa-ic-gorsel {
        width: 30%;
    }
    .sergi-afis,
    .yarisma-afis,
    .soylesi-afis,
    .duyuru-afis,
    .sayfa-afis {
        width: 100%;
        float: none;
        margin-right: 0;
    }
    .responsive-iframe {
        width: 100%;
        padding-bottom: 56.25%;
    }
    .index-sayfasi .sergi-card img {
        height: 180px;
    }
}
@media (max-width: 768px) {
    .carousel-item {
        height: auto;
        min-height: 600px;
    }
    .carousel-item .row {
        flex-direction: column;
    }
    .carousel-item .col-md-6 {
        width: 100%;
        height: auto;
        background-color: #f8f9fa;
    }
    .carousel-item img {
        border-radius: 0;
        height: 400px;
    }
    .carousel-caption {
        position: relative;
        padding: 0.0rem 1.5rem 1.5rem;
        height: auto;
        min-height: 180px;
        touch-action: auto;
        -webkit-overflow-scrolling: touch;
        pointer-events: auto;
        text-align: left;
        width: 100%;
        max-width: 100%;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: #f8f9fa;
    }
    .carousel-caption h2 {
        font-size: 1.5rem;
        max-width: 100%;
        margin-top: 0.5rem;
        margin-bottom: 0.75rem;
        height: auto;
        max-height: 6rem;
        line-height: 1.8rem;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
    }
    .carousel-caption .badge, 
    .carousel-caption .kategori-rozet,
    .carousel-caption .yarisma-rozet,
    .carousel-caption .soylesi-rozet {
        margin-top: 0;
        margin-bottom: 0.5rem;
        padding: 0.2rem 0.75rem;
    }
    .carousel-caption .text-muted {
        max-width: 100%;
        margin-bottom: 80px;
    }
    .carousel-caption .btn-outline-dark {
        padding: 11px 10px;
        margin-left: 0;
        margin-right: auto;
        align-self: flex-start;
        font-size: 14px;
        text-transform: none;
        position: absolute;
        bottom: 41px;
        left: 20px;
    }
    .carousel-navigation {
        position: absolute;
        bottom: 39px;
        right: 20px;
        display: flex !important;
        gap: 0.5rem;
        z-index: 10;
    }
    .carousel-navigation {
        display: none;
    }
    .carousel {
        touch-action: pan-y pan-x pinch-zoom;
    }
    .carousel-inner {
        touch-action: pan-y pan-x;
    }
    .carousel-item {
        touch-action: auto;
        height: auto;
        min-height: 600px;
        transition: transform 0.3s ease-in-out;
    }
    .anasayfa-tum-sergiler-grid {
        grid-template-columns: 1fr;
    }
    
    .anasayfa-tum-sergiler-card img {
        height: 250px;
    }

    .index-sayfasi .sergi-card img {
        width: 100%;
        margin-top: 30px;
        height: 250px;
        object-fit: contain;
        background-color: #ffffff00;
        padding: 0 15px;
    }

    .sergi-yonetim-baslik-row {
        flex-direction: column !important;
        align-items: flex-start !important;
    }
    .sergi-yonetim-baslik-row .btn {
        margin-top: 15px;
        width: 100%;
    }
    /* Dikey video oranı için özel sınıf */
    .sergi .ratio-vertical,
    .yarisma .ratio-vertical,
    .soylesi .ratio-vertical,
    .duyuru .ratio-vertical,
    .sayfa .ratio-vertical {
        position: relative;
        width: 80%;
        padding-bottom: 49.375%;
        aspect-ratio: 9/16;
        background: #f8f9fa;
        border: 1px solid #ddd;
        overflow: hidden;
    }

    .sergi .ratio-vertical iframe,
    .yarisma .ratio-vertical iframe,
    .soylesi .ratio-vertical iframe,
    .duyuru .ratio-vertical iframe,
    .sayfa .ratio-vertical iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border: 0;
    }

    /* Kare (1:1) video oranı için özel sınıf */
    .sergi .ratio-square,
    .yarisma .ratio-square,
    .soylesi .ratio-square,
    .duyuru .ratio-square,
    .sayfa .ratio-square {
        position: relative;
        width: 100%;
        padding-bottom: 49.375%;
        aspect-ratio: 1/1;
        background: #f8f9fa;
        border: 1px solid #ddd;
        overflow: hidden;
    }

    .sergi .ratio-square iframe,
    .yarisma .ratio-square iframe,
    .soylesi .ratio-square iframe,
    .duyuru .ratio-square iframe,
    .sayfa .ratio-square iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border: 0;
    }

    /* 4:3 video oranı için özel sınıf */
    .sergi .ratio-4by3,
    .yarisma .ratio-4by3,
    .soylesi .ratio-4by3,
    .duyuru .ratio-4by3,
    .sayfa .ratio-4by3 {
        position: relative;
        width: 50%;
        padding-bottom: 49.375%;
        aspect-ratio: 4/3;
        background: #f8f9fa;
        border: 1px solid #ddd;
        overflow: hidden;
    }

    .sergi .ratio-4by3 iframe,
    .yarisma .ratio-4by3 iframe,
    .soylesi .ratio-4by3 iframe,
    .duyuru .ratio-4by3 iframe,
    .sayfa .ratio-4by3 iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border: 0;
    }

    /* 16:9 (yatay) video oranı için özel sınıf */
    .sergi .ratio-16x9,
    .yarisma .ratio-16x9,
    .soylesi .ratio-16x9,
    .duyuru .ratio-16x9,
    .sayfa .ratio-16x9 {
        position: relative;
        width: 100%;
        padding-bottom: 28.125%; /* 16:9 oranı için (9/16 = 0.5625, 0.5625*50% = 28.125%) */
        aspect-ratio: 16/9;
        background: #f8f9fa;
        border: 1px solid #ddd;
        overflow: hidden;
    }

    .sergi .ratio-16x9 iframe,
    .yarisma .ratio-16x9 iframe,
    .soylesi .ratio-16x9 iframe,
    .duyuru .ratio-16x9 iframe,
    .sayfa .ratio-16x9 iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border: 0;
    }
    /* 4:3 video oranı için özel sınıf */
    .sergi .ratio-4by3,
    .yarisma .ratio-4by3,
    .soylesi .ratio-4by3,
    .duyuru .ratio-4by3,
    .sayfa .ratio-4by3 {
        position: relative;
        width: 100%;
        padding-bottom: 49.375%;
        aspect-ratio: 4/3;
        background: #f8f9fa;
        border: 1px solid #ddd;
        overflow: hidden;
    }

    .sergi .ratio-4by3 iframe,
    .yarisma .ratio-4by3 iframe,
    .soylesi .ratio-4by3 iframe,
    .duyuru .ratio-4by3 iframe,
    .sayfa .ratio-4by3 iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border: 0;
    }
}