/* === Genel Sayfa Stilleri === */

        /* === Üst Başlık (Header) === */
        header {
            background: brown;
            padding: 2.5rem 2rem;
            margin: 1.5rem;
            text-align: center;
            color: white;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
            border-radius: 16px;
        }

        header h1 {
            font-size: 2.8rem;
            font-weight: 700;
            margin: 0;
        }

        /* === Ana Konteyner ve Düzen === */
        .main-container {
            display: flex;
            max-width: 1500px;
            margin: 2rem auto;
            padding: 0 1.5rem;
            gap: 2rem;
        }

        .content {
            flex: 3;
        }

        .right-container {
            flex: 1;
            position: sticky;
            top: 2rem;
        }

        /* === Açıklama Bölümü === */
        .intro-section {
            background: #f0f4f8;
            border-left: 5px solid #ff6f61;
            border-radius: 8px;
            padding: 1.5rem;
            margin-bottom: 2.5rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        .intro-section p {
            font-size: 1.1rem;
            color: #37474f;
            line-height: 1.6;
            margin: 0;
        }

        /* === Çalışma Kağıdı Kartları === */
        .worksheet-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }

        .worksheet-card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .worksheet-card a.card-link {
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .worksheet-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
        }

        .card-preview {
            height: 180px;
            background-color: #e9ecef;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .card-preview img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .card-content {
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .card-content h3 {
            font-size: 1.2rem;
            margin: 0 0 0.5rem 0;
            color: #343a40;
            flex-grow: 1;
        }

        .action-btn {
            display: block;
            width: 100%;
            padding: 0.8rem 1rem;
            background: #007bff;
            color: white;
            text-align: center;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            transition: background 0.3s ease;
            margin-top: 1rem;
        }

        .action-btn i {
            margin-left: 0.5rem;
        }

        .action-btn:hover {
            background: #0056b3;
        }

        /* === Sağ Konteyner (Sidebar) === */
        .sidebar-box {
            background: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
            text-align: center;
            margin-bottom: 2rem;
        }

        .sidebar-box h3 {
            font-size: 1.5rem;
            color: #333;
            margin: 0 0 1rem 0;
        }

        .sidebar-box ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-box li {
            margin: 0.6rem 0;
        }

        .sidebar-box a {
            display: block;
            padding: 0.8rem;
            background: #f8f9fa;
            border-radius: 8px;
            text-decoration: none;
            color: #000000;
            font-size: 1rem;
            font-weight: 500;
            transition: all 0.3s ease;
            border: 1px solid blue;
        }

        .sidebar-box a:hover {
            background: #007bff;
            color: white;
            transform: translateX(5px);
        }

        /* === Sosyal Medya Paylaşım === */
        .social-share a {
            display: inline-block;
            font-size: 1.8rem;
            margin: 0 0.75rem;
            color: #adb5bd;
            transition: color 0.3s ease, transform 0.3s ease;
        }

        .social-share a:hover {
            transform: scale(1.2);
        }

        .social-share .facebook-hover:hover {
            background: #1877F2;
        }

        .social-share .twitter-hover:hover {
            background: #1DA1F2;
        }

        .social-share .whatsapp-hover:hover {
            background: #25D366;
        }

        /* === Mobil Uyum (Responsive) === */
        @media (max-width: 768px) {
            .main-container {
                flex-direction: column;
            }

            .right-container {
                position: static;
            }

            header h1 {
                font-size: 1.4rem;
            }

            header p {
                font-size: 0.9rem;
            }

            .worksheet-grid {
                grid-template-columns: 1fr;
            }
        }