:root {
            --primary-color: #FFD700;
            --secondary-color: #C0C0C0;
            --accent-color: #FF4500;
            --bg-main: #0F0F0F;
            --bg-surface: #1A1A1A;
            --bg-overlay: rgba(0, 0, 0, 0.7);
            --success: #28A745;
            --warning: #FFC107;
            --error: #DC3545;
            --info: #17A2B8;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0B0;
            --text-muted: #757575;
            --text-on-brand: #000000;
            --border-light: #333333;
            --border-medium: #444444;
            --border-strong: #FFD700;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Noto Sans Bengali', sans-serif;
            --font-accent: 'Poppins', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-main);
            color: var(--text-primary);
            font-family: var(--font-primary);
            line-height: 1.5;
            font-size: 16px;
        }
        header {
            background-color: var(--bg-surface);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-medium);
        }
        .logo-area { display: flex; align-items: center; gap: 10px; }
        .logo-area img { width: 25px; height: 25px; }
        .logo-area strong { font-size: 16px; font-weight: normal; }
        .auth-buttons { display: flex; gap: 10px; }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--border-medium); padding: 5px 15px; border-radius: 5px; cursor: pointer; }
        .btn-register { background: var(--primary-color); color: var(--text-on-brand); border: none; padding: 5px 15px; border-radius: 5px; cursor: pointer; font-weight: 600; }
        
        .main-banner { width: 100%; aspect-ratio: 2/1; overflow: hidden; cursor: pointer; }
        .main-banner img { width: 100%; height: 100%; object-fit: cover; }

        .reward-section {
            background: linear-gradient(45deg, #1a1a1a, #2a2a2a);
            padding: 40px 20px;
            text-align: center;
            border-bottom: 2px solid var(--primary-color);
        }
        .reward-section h2 { color: var(--primary-color); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-cta { 
            background: var(--accent-color); 
            color: white; 
            padding: 15px 30px; 
            font-size: 20px; 
            border-radius: 50px; 
            border: none; 
            cursor: pointer; 
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
            font-weight: bold;
        }

        .intro-card {
            margin: 20px;
            padding: 25px;
            background: var(--bg-surface);
            border-radius: 15px;
            border-left: 5px solid var(--primary-color);
            box-shadow: 0 4px 10px rgba(0,0,0,0.5);
        }
        .intro-card h1 { color: var(--primary-color); margin-bottom: 10px; font-size: 32px; }
        .intro-card p { color: var(--text-secondary); }

        .section-title { text-align: center; margin: 30px 0 20px; color: var(--primary-color); font-size: 24px; }
        
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            padding: 0 15px;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            transition: transform 0.3s;
            border: 1px solid var(--border-light);
        }
        .game-card:hover { transform: translateY(-5px); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { padding: 10px; font-size: 16px; text-align: center; color: var(--text-primary); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            padding: 0 15px;
        }
        .payment-item {
            background: var(--bg-surface);
            padding: 15px 5px;
            text-align: center;
            border-radius: 8px;
            font-size: 12px;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
        }
        .payment-item i { display: block; font-size: 20px; margin-bottom: 8px; color: var(--primary-color); }

        .article-list { padding: 0 15px; display: flex; flex-direction: column; gap: 15px; }
        .article-card {
            display: flex;
            background: var(--bg-surface);
            border-radius: 10px;
            overflow: hidden;
            text-decoration: none;
            color: inherit;
            border: 1px solid var(--border-medium);
        }
        .article-card img { width: 100px; height: 100px; object-fit: cover; }
        .article-content { padding: 10px; }
        .article-content h3 { font-size: 16px; margin-bottom: 5px; color: var(--text-primary); }
        .article-content p { font-size: 13px; color: var(--text-secondary); }

        .guidelines { padding: 0 15px; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; }
        .guide-card { background: var(--bg-surface); padding: 15px; border-radius: 10px; border: 1px solid var(--border-light); }
        .guide-card h3 { color: var(--primary-color); margin-bottom: 10px; font-size: 18px; }
        .guide-card p { font-size: 14px; color: var(--text-secondary); }

        .review-grid { padding: 0 15px; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 15px; }
        .review-card { background: var(--bg-surface); padding: 20px; border-radius: 15px; border: 1px solid var(--border-medium); }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 24px; color: var(--primary-color); }
        .review-rating { color: var(--warning); font-size: 14px; }
        .review-date { font-size: 12px; color: var(--text-muted); margin-top: 10px; display: block; }

        .lottery-list { padding: 0 15px; background: var(--bg-surface); border-radius: 10px; }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
        }
        .lottery-item:last-child { border-bottom: none; }
        .win-amount { color: var(--success); font-weight: bold; }

        .provider-wall { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 10px; 
            padding: 0 15px; 
        }
        .provider-item { 
            background: var(--primary-color); 
            color: var(--text-on-brand); 
            text-align: center; 
            padding: 15px; 
            font-weight: bold; 
            border-radius: 5px; 
            font-family: var(--font-accent);
        }

        .faq-section { padding: 0 15px; display: flex; flex-direction: column; gap: 10px; }
        .faq-item { background: var(--bg-surface); padding: 15px; border-radius: 8px; border: 1px solid var(--border-medium); }
        .faq-item h3 { font-size: 16px; color: var(--primary-color); margin-bottom: 8px; }
        .faq-item p { font-size: 14px; color: var(--text-secondary); }

        .security-footer {
            background: #000;
            padding: 30px 15px;
            text-align: center;
            border-top: 1px solid var(--border-medium);
        }
        .security-badges { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; flex-wrap: wrap; }
        .badge { color: var(--text-secondary); font-size: 13px; display: flex; align-items: center; gap: 5px; }
        .badge i { color: var(--success); }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            padding: 10px 0;
            border-top: 2px solid var(--primary-color);
            z-index: 2000;
        }
        .nav-item { text-decoration: none; color: var(--text-secondary); text-align: center; font-size: 12px; }
        .nav-item i { display: block; font-size: 20px; margin-bottom: 3px; }

        footer {
            background: var(--bg-surface);
            padding: 40px 15px 100px;
            border-top: 1px solid var(--border-medium);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-links a { color: var(--text-muted); text-decoration: none; font-size: 13px; }
        .copyright { text-align: center; color: var(--text-muted); font-size: 13px; border-top: 1px solid var(--border-light); padding-top: 20px; }

        @media (min-width: 768px) {
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(8, 1fr); }
            .provider-wall { grid-template-columns: repeat(4, 1fr); }
        }