/* Kaynak: temalar/efsaneweb/urun.php — otomatik ayıklandı */

    :root {
        --corporate-blue: #0a2540;
        --accent-gold: #c5a059;
        --text-dark: #1a1f36;
        --text-muted: #697386;
        --bg-light: #f7f9fc;
        --border-color: #e3e8ee;
        --radius: 16px;
        --shadow: 0 10px 30px rgba(0,0,0,0.05);
    }

    body { background-color: #fff; color: var(--text-dark); }

    /* Modern Hero Header */
    .product-header-wrap {
        background: var(--bg-light);
        padding: 50px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .breadcrumb-nav {
        display: flex;
        gap: 10px;
        font-size: 14px;
        margin-bottom: 20px;
        color: var(--text-muted);
    }

    .breadcrumb-nav a { color: var(--text-muted); text-decoration: none; transition: 0.3s; }
    .breadcrumb-nav a:hover { color: var(--corporate-blue); }

    /* Galeri */
    .gallery-container { position: sticky; top: 120px; }
    
    .main-slider {
        border-radius: var(--radius);
        background: #fff;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow);
    }

    .main-slider img {
        width: 100%;
        height: 600px;
        object-fit: contain;
        padding: 40px;
    }

    /* SWIPER THUMB DÜZELTMESİ: Kutuya Tam Sığma */
    .thumb-slider { margin-top: 15px; }
    .thumb-slider .swiper-slide {
        border-radius: 10px;
        overflow: hidden;
        border: 2px solid transparent;
        cursor: pointer;
        opacity: 0.6;
        height: 90px; /* Yükseklik sabitlendi */
        display: flex;
        align-items: center;
        justify-content: center;
        background: #fff;
        border: 1px solid var(--border-color);
    }
    .thumb-slider .swiper-slide-thumb-active { border-color: var(--corporate-blue); opacity: 1; }
    .thumb-slider img { 
        width: 100%; 
        height: 100%; 
        object-fit: contain; /* Görseli bozmadan kutuya sığdırır */
        padding: 5px;
    }

    /* Ürün Detay */
    .product-details-card { padding-left: 30px; }
    .category-label {
        font-weight: 700;
        color: var(--accent-gold);
        text-transform: uppercase;
        letter-spacing: 2px;
        font-size: 13px;
        display: block;
        margin-bottom: 10px;
    }

    .product-main-title {
        font-size: 42px;
        font-weight: 800;
        line-height: 1.1;
        margin-bottom: 20px;
        color: var(--corporate-blue);
    }

    /* FİYAT ALANI TASARIMI */
    .price-wrap {
        margin: 25px 0;
        padding: 20px;
        background: #fff;
        border-radius: 12px;
        border: 1px solid var(--border-color);
    }
    .tpsf-text {
        display: block;
        font-size: 12px;
        font-weight: 800;
        color: #d63031;
        text-transform: uppercase;
        margin-bottom: 5px;
    }
    .old-price {
        font-size: 20px;
        color: #b2bec3;
        text-decoration: line-through;
        font-weight: 600;
    }
    .current-price {
        display: block;
        font-size: 38px;
        font-weight: 900;
        color: var(--corporate-blue);
        margin-top: 5px;
    }
    .discount-pill {
        background: #27ae60;
        color: #fff;
        padding: 4px 12px;
        border-radius: 50px;
        font-size: 14px;
        margin-left: 10px;
        vertical-align: middle;
    }

    .info-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        margin: 30px 0;
    }

    .info-box {
        background: var(--bg-light);
        padding: 20px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        gap: 15px;
    }

    .info-box i { font-size: 24px; color: var(--corporate-blue); }
    .info-box span { font-size: 14px; font-weight: 600; }

    /* Kurumsal CTA */
    .purchase-cta {
        background: var(--corporate-blue);
        color: #fff;
        padding: 35px;
        border-radius: var(--radius);
        margin-top: 40px;
    }

    .purchase-cta h4 { color: #fff; font-weight: 700; }
    .btn-purchase {
        background: #fff;
        color: var(--corporate-blue);
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 15px 30px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: 700;
        margin-top: 15px;
        transition: 0.3s;
    }
    .btn-purchase:hover { background: var(--accent-gold); color: #fff; transform: translateY(-3px); }

    /* Tabs */
    .custom-tabs-nav {
        display: flex;
        gap: 40px;
        border-bottom: 2px solid var(--border-color);
        margin-top: 50px;
    }

    .tab-link {
        padding: 15px 0;
        border: none;
        background: none;
        font-weight: 700;
        color: var(--text-muted);
        position: relative;
        cursor: pointer;
    }

    .tab-link.active { color: var(--corporate-blue); }
    .tab-link.active::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 100%;
        height: 2px;
        background: var(--corporate-blue);
    }

    .tab-content { padding: 30px 0; line-height: 1.8; display: none; }
    .tab-content.active { display: block; animation: fadeIn 0.5s; }

    @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

    @media (max-width: 991px) {
        .product-details-card { padding-left: 0; margin-top: 40px; }
        .main-slider img { height: 400px; }
    }