.banner {
            width: 100%;
            height: 300px;
            background: url('image/banner.jpg') center/cover no-repeat;
            margin-bottom: 30px;
        }

        .kategoriler, .urunler {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin: 30px;
        }

        .kategori-box, .urun {
            border: 1px solid #ccc;
            padding: 15px;
            border-radius: 10px;
            width: 200px;
            text-align: center;
            background: #f9f9f9;
        }

        .urun img {
            width: 100%;
            height: auto;
            max-height: 150px;
        }

        footer {
            text-align: center;
            padding: 20px;
            background: #222;
            color: #fff;
            margin-top: 40px;
        }
        .banner {
    width: 100%;
    max-height: 350px;
    overflow: hidden;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f5f5f5;
}

.banner img {
    width: 100%;
    height: auto;
    object-fit: cover;
}