/* Navbar Beyaz Arka Plan ve Gölge */
.bg-navbar-beyaz {
    background-color: #ffffff !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

/* RESPONSIVE LOGO AYARI:
                           Mobil cihazlarda (küçük ekranlar) logo yüksekliği 52px kalır.
                        */
.logo-optimize {
    height: 52px;
    width: auto;
    object-fit: contain;
    display: block;
    transition: height 0.3s ease; /* Ekran boyutları arası yumuşak geçiş */
}

/* MASAÜSTÜ EKRANLAR İÇİN LOGO BÜYÜTME (992px ve Üzeri):
                           Masaüstünde menü linkleriyle dengeli bir büyüklük için 65px yapıyoruz.
                        */
@@media (min-width: 992px) {
    .logo-optimize {
        height: 65px; /* Masaüstünde logomuz artık daha heybetli */
    }
}

/* Büyük logo ile menü linklerinin dikey eksende kusursuz ortalanması */
.navbar-nav .nav-link {
    display: flex;
    align-items: center;
    height: 100%;
}

.navbar-light .nav-link {
    color: #4a5568 !important;
    transition: color 0.2s ease;
}

    .navbar-light .nav-link:hover {
        color: #0d6efd !important;
    }

/* Referans Görsel Odaklı Kategori Karo Tasarımı */
.category-grid-item {
    position: relative;
    overflow: hidden;
    height: 350px;
    cursor: pointer;
}

    .category-grid-item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

.category-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.4);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    transition: background-color 0.3s ease;
}

.category-grid-content {
    color: white;
    text-align: center;
}

.category-grid-title {
    font-size: 2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.category-grid-btn {
    background-color: #1a252f;
    color: white;
    border: none;
    padding: 10px 30px;
    text-transform: uppercase;
    font-weight: bold;
    font-size: 0.9rem;
    letter-spacing: 1px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
    text-decoration: none;
}

/* HOVER EFEKTLERİ */
.category-grid-item:hover img {
    transform: scale(1.1);
}

.category-grid-item:hover .category-grid-overlay {
    background-color: rgba(0,0,0,0.6);
}

.category-grid-item:hover .category-grid-btn {
    opacity: 1;
    transform: translateY(0);
}

/* Genel Kurumsal Renkler */
.bg-kurumsal {
    background-color: #1a252f !important;
}

.text-kurumsal {
    color: #1a252f !important;
}

.btn-kurumsal {
    background-color: #1a252f;
    color: white;
}

    .btn-kurumsal:hover {
        background-color: #2c3e50;
        color: white;
    }

.hero-section {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1616486338812-3dadae4b4ace?q=80&w=1920') no-repeat center center;
    background-size: cover;
    height: 50vh;
    color: white;
}

.product-main-img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: 8px;
}

.product-thumb {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

    .product-thumb:hover, .product-thumb.active {
        opacity: 1;
        border: 2px solid #1a252f;
    }

.product-features-box {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
}