:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #0F172A;
            --brand-primary: #FACC15;
            --brand-secondary: #EAB308;
            --brand-highlight: #FFD700;
            --brand-dark: #854D0E;
            --success: #22C55E;
            --error: #EF4444;
            --warning: #F59E0B;
            --info: #3B82F6;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-inverse: #000000;
            --border-primary: #334155;
            --border-secondary: #475569;
            --border-accent: #FACC15;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
        }
        header {
            background-color: var(--bg-secondary);
            border-bottom: 1px solid var(--border-primary);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-logo { display: flex; align-items: center; gap: 10px; }
        .header-logo img { width: 25px; height: 25px; }
        .header-logo 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-accent); 
            padding: 8px 16px; border-radius: 8px; cursor: pointer; 
        }
        .btn-register { 
            background: var(--brand-primary); color: var(--text-inverse); 
            border: none; padding: 8px 16px; border-radius: 8px; 
            cursor: pointer; font-weight: 600; 
        }
        main { padding-bottom: 80px; }
        .banner-container { width: 100%; }
        .banner-img { 
            width: 100%; aspect-ratio: 2/1; object-fit: cover; 
            cursor: pointer; display: block; 
        }
        .reward-section { 
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
            margin: 20px 15px; padding: 30px 20px; border-radius: 15px; 
            text-align: center; border: 1px solid var(--border-accent);
        }
        .reward-section h2 { color: var(--brand-primary); margin-bottom: 15px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-big { 
            background: var(--brand-primary); color: var(--text-inverse); 
            font-size: 20px; font-weight: bold; padding: 15px 30px; 
            border-radius: 10px; border: none; cursor: pointer; 
            box-shadow: 0 4px 15px rgba(250, 204, 21, 0.3);
        }
        .intro-card { 
            margin: 20px 15px; padding: 25px; background: var(--bg-secondary); 
            border-radius: 15px; border-left: 5px solid var(--brand-primary); 
        }
        .intro-card h1 { font-size: 32px; color: var(--brand-primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title { padding: 20px 15px 10px; font-size: 24px; text-align: center; color: var(--brand-primary); }
        .game-grid { 
            display: grid; grid-template-columns: repeat(2, 1fr); 
            gap: 15px; padding: 15px; 
        }
        .game-card { 
            background: var(--bg-secondary); border-radius: 12px; 
            overflow: hidden; text-decoration: none; 
            border: 1px solid var(--border-primary); 
            transition: transform 0.2s;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--brand-primary); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { 
            padding: 10px; font-size: 14px; text-align: center; 
            color: var(--text-primary); 
        }
        .payment-grid { 
            display: grid; grid-template-columns: repeat(4, 1fr); 
            gap: 10px; padding: 15px; 
        }
        .payment-item { 
            background: var(--bg-secondary); padding: 15px 5px; 
            border-radius: 10px; text-align: center; 
            font-size: 12px; color: var(--text-secondary); 
            border: 1px solid var(--border-primary);
        }
        .payment-item i { display: block; color: var(--brand-primary); margin-bottom: 8px; font-size: 18px; }
        .article-list { padding: 15px; display: flex; flex-direction: column; gap: 15px; }
        .article-card { 
            display: flex; gap: 15px; background: var(--bg-secondary); 
            padding: 10px; border-radius: 12px; text-decoration: none; 
            border: 1px solid var(--border-primary);
        }
        .article-card img { width: 80px; height: 80px; border-radius: 8px; object-fit: cover; }
        .article-content h3 { font-size: 15px; color: var(--text-primary); margin-bottom: 5px; }
        .article-content p { font-size: 13px; color: var(--text-secondary); }
        .guideline-grid { padding: 15px; display: grid; gap: 15px; }
        .guideline-item { 
            background: var(--bg-secondary); padding: 15px; 
            border-radius: 12px; border: 1px solid var(--border-primary); 
        }
        .guideline-item h3 { color: var(--brand-primary); margin-bottom: 8px; font-size: 16px; }
        .guideline-item p { font-size: 14px; color: var(--text-secondary); }
        .review-grid { padding: 15px; display: grid; gap: 15px; }
        .review-card { 
            background: var(--bg-secondary); padding: 15px; border-radius: 12px; 
            border: 1px solid var(--border-primary); 
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 24px; color: var(--brand-primary); }
        .review-user { font-weight: bold; font-size: 14px; }
        .review-stars { color: var(--brand-highlight); font-size: 12px; margin-left: auto; }
        .review-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .lottery-grid { padding: 15px; display: grid; gap: 10px; }
        .lottery-item { 
            background: var(--bg-secondary); padding: 12px 15px; 
            border-radius: 10px; display: flex; justify-content: space-between; 
            align-items: center; border: 1px solid var(--border-primary); 
        }
        .lottery-info { display: flex; gap: 10px; align-items: center; }
        .lottery-name { font-size: 14px; color: var(--text-primary); }
        .lottery-game { font-size: 12px; color: var(--text-muted); }
        .lottery-win { color: var(--brand-primary); font-weight: bold; font-size: 15px; }
        .lottery-time { font-size: 11px; color: var(--text-muted); }
        .provider-wall { 
            display: grid; grid-template-columns: repeat(2, 1fr); 
            gap: 10px; padding: 15px; 
        }
        .provider-box { 
            background: var(--brand-dark); padding: 15px; border-radius: 8px; 
            text-align: center; font-weight: bold; color: var(--brand-primary); 
            border: 1px solid var(--brand-highlight); 
        }
        .faq-section { padding: 15px; display: flex; flex-direction: column; gap: 15px; }
        .faq-item { background: var(--bg-secondary); padding: 15px; border-radius: 12px; border: 1px solid var(--border-primary); }
        .faq-item h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 10px; }
        .faq-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        .safety-section { 
            padding: 20px 15px; background: var(--bg-secondary); 
            border-radius: 15px; margin: 15px; text-align: center; 
            border: 1px solid var(--border-primary); 
        }
        .safety-badge { 
            display: inline-block; margin: 10px; padding: 10px 20px; 
            background: var(--bg-primary); border-radius: 5px; 
            border: 1px solid var(--brand-primary); color: var(--text-primary); 
            font-size: 13px; 
        }
        .safety-links { margin-top: 15px; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
        .safety-links a { color: var(--brand-primary); font-size: 13px; text-decoration: none; }
        .navigator { 
            position: fixed; bottom: 0; left: 0; right: 0; 
            background: var(--bg-secondary); border-top: 1px solid var(--border-primary); 
            display: flex; justify-content: space-around; padding: 10px 0; z-index: 2000; 
        }
        .nav-item { 
            text-decoration: none; color: var(--text-secondary); 
            display: flex; flex-direction: column; align-items: center; 
            font-size: 11px; gap: 5px; 
        }
        .nav-item i { font-size: 20px; }
        footer { 
            background: var(--bg-secondary); padding: 30px 15px; 
            border-top: 1px solid var(--border-primary); margin-bottom: 60px; 
        }
        .footer-links { 
            display: grid; grid-template-columns: repeat(3, 1fr); 
            gap: 10px; margin-bottom: 20px; 
        }
        .footer-links a { 
            color: var(--text-secondary); text-decoration: none; 
            font-size: 13px; text-align: center; 
        }
        .copyright { 
            text-align: center; font-size: 12px; color: var(--text-muted); 
            border-top: 1px solid var(--border-primary); padding-top: 20px; 
        }