:root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f8f9fa;
            color: #333;
        }
        
        .navbar-brand {
            font-weight: bold;
            font-size: 1.8rem;
        }
        
        .nav-link {
            font-weight: 500;
        }
        
        .hero-section {
            background-color: var(--dark-color);
            color: white;
            padding: 30px 0;
            margin-bottom: 30px;
            position: relative;
        }
        
        .hero-slider {
            position: relative;
            overflow: hidden;
            height: 400px;
            border-radius: 10px;
        }
        
        .hero-slides {
            display: flex;
            transition: transform 0.5s ease-in-out;
            height: 100%;
        }
        
        .hero-slide {
            min-width: 100%;
            position: relative;
            display: flex;
            align-items: center;
            padding: 0 50px;
        }
        
        .hero-slide-img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 1;
        }
        
        .hero-slide::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.3); 
            z-index: 2;
        }
        /* gölge için  */
        
        .hero-content {
            max-width: 800px;
            position: relative;
            padding-left: 10%;
            z-index: 3;
        }
        
        .hero-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 100%;
            display: flex;
            justify-content: space-between;
            padding: 0 20px;
            z-index: 10;
        }
        
        .hero-nav button {
            background: rgba(0,0,0,0.5);
            color: white;
            border: none;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            transition: all 0.3s;
        }
        
        .hero-nav button:hover {
            background: rgba(0,0,0,0.8);
        }
        
        .hero-pagination {
            display: flex;
            justify-content: center;
            margin-top: 20px;
            gap: 10px;
        }
        
        .hero-pagination button {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid white;
            background: transparent;
            color: white;
            font-weight: bold;
            transition: all 0.3s;
        }
        
        .hero-pagination button.active {
            background: white;
            color: var(--dark-color);
        }
        
        .category-badge {
            position: absolute;
            top: 15px;
            left: 15px;
            z-index: 10;
        }
        
        .card {
            transition: transform 0.3s;
            margin-bottom: 20px;
            border: none;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
        }
        
        .card-img-top {
            height: 200px;
            object-fit: cover;
        }
        
        .article-meta {
            font-size: 0.85rem;
            color: #6c757d;
        }
        
        .featured-article {
            border-left: 5px solid var(--secondary-color);
        }
        
        .sidebar-widget {
            background-color: white;
            padding: 20px;
            border-radius: 5px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            margin-bottom: 20px;
        }
        
        .section-title {
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 10px;
            margin-bottom: 20px;
            font-weight: bold;
        }
        
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding: 40px 0;
            margin-top: 50px;
        }
        
        .social-icons a {
            color: white;
            font-size: 1.5rem;
            margin-right: 15px;
        }
        
        .breaking-news {
            background-color: var(--accent-color);
            color: white;
            padding: 10px 0;
            margin-bottom: 20px;
        }
        
        .breaking-news-content {
            white-space: nowrap;
            overflow: hidden;
        }
        
        .breaking-news-text {
            display: inline-block;
            padding-left: 100%;
            animation: marquee 20s linear infinite;
        }
        
        @keyframes marquee {
            0% { transform: translate(0, 0); }
            100% { transform: translate(-100%, 0); }
        }
        
        .books-section, .world-news-section {
            padding: 40px 0;
        }