:root {
            --primary-red: #eb2525;
            --dark-text: #333;
            --light-bg: #f9f9f9;
        }

        header.page-header {
            position: relative;
            color: #fff;
            text-align: center;
            height: 350px;
            overflow: hidden;
            background: #222;
        }

        header.page-header img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.6;
        }

        header.page-header .header-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 90%;
            max-width: 800px;
        }

        header.page-header h1 {
            font-size: 3rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
            margin: 0;
            border-bottom: 3px solid var(--primary-red);
            display: inline-block;
            padding-bottom: 10px;
        }

        .cert-section {
            padding: 60px 0;
            background-color: var(--light-bg);
        }

        /* Kart Yapısı - Tıklama özelliği yok */
        .cert-card {
            background: #fff;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 15px;
            text-align: center;
            transition: all 0.3s ease;
            height: 100%;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            cursor: default;
            /* Mouse işareti el (pointer) olmayacak */
        }

        .cert-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            border-color: var(--primary-red);
        }

        .cert-img-wrapper {
            height: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 15px;
            border-bottom: 1px solid #f0f0f0;
            padding-bottom: 15px;
            overflow: hidden;
            user-select: none;
            /* Resim seçilemesin */
        }

        .cert-img-wrapper img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            pointer-events: none;
            /* Resme sağ tıklanmasın, sürüklenmesin */
        }

        .cert-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #444;
            margin-bottom: 5px;
        }

        .cert-desc {
            font-size: 0.9rem;
            color: #888;
        }