:root {
            --primary: #d00000;
            --secondary: #9d0208;
            --dark: #370617;
            --light: #f8f9fa;
            --accent: #f48c06;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: var(--light);
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* Header */
        header {
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .logo img {
            height: 40px;
        }
        
        .logo-text {
            font-weight: 700;
            color: var(--dark);
            font-size: 1.2rem;
        }
        
        .logo-text span {
            color: var(--primary);
        }
        
        /* Hero */
        .gk-hero {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            padding: 120px 0 60px;
            text-align: center;
            margin-top: 70px;
        }
        
        .gk-hero h1 {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }
        
        .gk-hero p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* GK Section */
        .gk-main {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            color: var(--dark);
            font-size: 2rem;
            position: relative;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent);
        }
        
        .gk-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .gk-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: all 0.3s;
        }
        
        .gk-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        
        .gk-image {
            height: 180px;
            background-size: cover;
            background-position: center;
        }
        
        .gk-content {
            padding: 20px;
        }
        
        .gk-date {
            color: var(--primary);
            font-size: 0.9rem;
            margin-bottom: 10px;
            font-weight: 600;
        }
        
        .gk-content h3 {
            color: var(--dark);
            margin-bottom: 15px;
            font-size: 1.2rem;
        }
        
        .gk-content p {
            color: #666;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        
        .read-more {
            display: inline-block;
            padding: 8px 20px;
            background: var(--primary);
            color: white;
            text-decoration: none;
            border-radius: 5px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.3s;
        }
        
        .read-more:hover {
            background: var(--secondary);
        }
        
        /* Categories */
        .category-tabs {
            display: flex;
            justify-content: center;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .category-btn {
            padding: 8px 20px;
            background: white;
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .category-btn.active, .category-btn:hover {
            background: var(--primary);
            color: white;
        }
        
        /* Daily Quiz */
        .daily-quiz {
            background: white;
            border-radius: 10px;
            padding: 30px;
            margin: 60px 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            text-align: center;
        }
        
        .daily-quiz h3 {
            color: var(--dark);
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        
        .quiz-btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--accent);
            color: white;
            text-decoration: none;
            border-radius: 5px;
            font-weight: 600;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        
        .quiz-btn:hover {
            background: #e85d04;
        }
        
        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 0;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-about h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        
        .footer-about p {
            color: #bbb;
            margin-bottom: 20px;
        }
        
        .footer-links h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #bbb;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 20px 0;
            text-align: center;
            color: #bbb;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .gk-hero {
                padding: 100px 0 40px;
            }
            
            .gk-hero h1 {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 576px) {
            .gk-hero h1 {
                font-size: 1.8rem;
            }
            
            .gk-main {
                padding: 60px 0;
            }
            
            .category-btn {
                padding: 6px 15px;
                font-size: 0.9rem;
            }
        }