:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #0F172A;
            --brand-primary: #FFD700;
            --brand-secondary: #FFC107;
            --brand-highlight: #FF4D4D;
            --success: #10B981;
            --warning: #F59E0B;
            --error: #EF4444;
            --info: #3B82F6;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-inverse: #0F172A;
            --border-light: #334155;
            --border-medium: #475569;
            --border-dark: #1E293B;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { 
            background-color: var(--bg-primary); 
            color: var(--text-primary); 
            font-family: var(--font-primary); 
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-secondary);
            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-light);
        }
        .header-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
        .header-logo img { width: 25px; height: 25px; border-radius: 4px; }
        .header-logo strong { font-size: 16px; font-weight: normal; color: var(--brand-primary); }
        .header-btns { display: flex; gap: 10px; }
        .btn-login { 
            background: transparent; color: var(--text-primary); 
            border: 1px solid var(--brand-primary); padding: 6px 15px; 
            border-radius: 20px; cursor: pointer; font-family: var(--font-primary); 
        }
        .btn-register { 
            background: var(--brand-primary); color: var(--text-inverse); 
            border: none; padding: 6px 15px; border-radius: 20px; 
            cursor: pointer; font-family: var(--font-primary); font-weight: 600;
        }
        main { padding-bottom: 80px; }
        .banner-container { width: 100%; max-width: 1200px; margin: 0 auto; }
        .banner-container img { 
            width: 100%; aspect-ratio: 2/1; object-fit: cover; 
            cursor: pointer; display: block; border-radius: 0 0 15px 15px; 
        }
        .reward-section { 
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary)); 
            margin: 20px; padding: 30px; border-radius: 20px; text-align: center; color: var(--text-inverse); 
        }
        .reward-section h2 { font-size: 24px; margin-bottom: 15px; }
        .reward-section p { margin-bottom: 20px; font-size: 16px; opacity: 0.9; }
        .btn-big-reg { 
            background: var(--brand-highlight); color: white; 
            border: none; padding: 15px 40px; border-radius: 30px; 
            font-size: 18px; font-weight: bold; cursor: pointer; 
            box-shadow: 0 4px 15px rgba(255,77,77,0.4); 
        }
        .intro-card { 
            background: var(--bg-secondary); margin: 20px; padding: 25px; 
            border-radius: 20px; border: 1px solid var(--border-light); 
            text-align: center; box-shadow: 0 10px 30px rgba(0,0,0,0.3); 
        }
        .intro-card h1 { color: var(--brand-primary); font-size: 32px; margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title { text-align: center; margin: 40px 0 20px; font-size: 24px; color: var(--brand-primary); }
        .game-grid { 
            display: grid; grid-template-columns: repeat(2, 1fr); 
            gap: 15px; padding: 0 20px; 
        }
        .game-card { 
            background: var(--bg-secondary); border-radius: 15px; 
            overflow: hidden; text-decoration: none; 
            border: 1px solid var(--border-light); 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: 12px; font-size: 14px; text-align: center; 
            color: var(--text-primary); background: var(--bg-secondary); 
        }
        .payment-grid { 
            display: grid; grid-template-columns: repeat(4, 1fr); 
            gap: 10px; padding: 0 20px; 
        }
        .payment-item { 
            background: var(--bg-secondary); padding: 15px 5px; 
            border-radius: 12px; text-align: center; 
            border: 1px solid var(--border-light); 
        }
        .payment-item i { display: block; color: var(--brand-primary); font-size: 20px; margin-bottom: 8px; }
        .payment-item span { font-size: 12px; color: var(--text-secondary); }
        .guide-grid { padding: 0 20px; display: grid; grid-template-columns: 1fr; gap: 15px; }
        .guide-card { 
            background: var(--bg-secondary); padding: 20px; 
            border-radius: 15px; border-left: 4px solid var(--brand-primary); 
        }
        .guide-card h3 { font-size: 18px; margin-bottom: 10px; color: var(--brand-primary); }
        .guide-card p { font-size: 14px; color: var(--text-secondary); }
        .review-grid { padding: 0 20px; display: grid; grid-template-columns: 1fr; gap: 15px; }
        .review-card { 
            background: var(--bg-secondary); padding: 20px; 
            border-radius: 15px; border: 1px solid var(--border-light); 
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { color: var(--text-muted); font-size: 24px; }
        .review-header .user-name { font-weight: 600; font-size: 15px; }
        .review-stars { color: var(--brand-primary); font-size: 13px; margin-bottom: 10px; }
        .review-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .win-list { padding: 0 20px; display: grid; grid-template-columns: 1fr; gap: 10px; }
        .win-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-light); 
        }
        .win-user { font-weight: 500; color: var(--text-primary); }
        .win-amount { color: var(--brand-primary); font-weight: bold; }
        .win-time { font-size: 11px; color: var(--text-muted); }
        .provider-wall { 
            display: grid; grid-template-columns: repeat(2, 1fr); 
            gap: 10px; padding: 0 20px; 
        }
        .provider-item { 
            background: linear-gradient(45deg, #1e293b, #334155); 
            padding: 15px; border-radius: 10px; text-align: center; 
            font-weight: bold; color: var(--brand-primary); 
            border: 1px solid var(--border-medium); 
        }
        .faq-section { padding: 0 20px; display: grid; grid-template-columns: 1fr; gap: 15px; }
        .faq-card { background: var(--bg-secondary); padding: 20px; border-radius: 15px; border: 1px solid var(--border-light); }
        .faq-card h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 10px; }
        .faq-card p { font-size: 14px; color: var(--text-secondary); }
        .security-section { 
            margin: 20px; padding: 25px; background: var(--bg-secondary); 
            border-radius: 20px; text-align: center; border: 1px solid var(--border-light); 
        }
        .security-badges { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; flex-wrap: wrap; }
        .badge { color: var(--brand-primary); font-size: 14px; display: flex; align-items: center; gap: 8px; }
        .security-notice { font-size: 13px; color: var(--text-muted); line-height: 1.8; }
        .navigator { 
            position: fixed; bottom: 0; left: 0; right: 0; 
            background: var(--bg-secondary); display: flex; 
            justify-content: space-around; padding: 10px 0; 
            border-top: 1px solid var(--border-light); z-index: 2000; 
        }
        .nav-item { 
            text-decoration: none; color: var(--text-secondary); 
            text-align: center; font-size: 12px; display: flex; flex-direction: column; gap: 5px; 
        }
        .nav-item i { font-size: 20px; color: var(--text-primary); }
        footer { 
            background: var(--bg-secondary); padding: 40px 20px 100px; 
            border-top: 1px solid var(--border-light); color: var(--text-secondary); 
        }
        .footer-contact { text-align: center; margin-bottom: 30px; }
        .contact-links { display: flex; justify-content: center; gap: 15px; margin-top: 10px; flex-wrap: wrap; }
        .contact-links a { color: var(--brand-primary); text-decoration: none; font-size: 14px; }
        .footer-links { 
            display: grid; grid-template-columns: repeat(3, 1fr); 
            gap: 10px; text-align: center; margin-bottom: 30px; 
        }
        .footer-links a { color: var(--text-muted); text-decoration: none; font-size: 13px; }
        .footer-bottom { text-align: center; font-size: 12px; 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); }
            .guide-grid { grid-template-columns: repeat(3, 1fr); }
            .review-grid { grid-template-columns: repeat(3, 1fr); }
            .win-list { grid-template-columns: repeat(2, 1fr); }
            .provider-wall { grid-template-columns: repeat(4, 1fr); }
            .faq-section { grid-template-columns: repeat(2, 1fr); }
        }