:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #020617;
            --brand-primary: #FFD700;
            --brand-secondary: #C5A000;
            --brand-highlight: #FF4D4D;
            --success: #22C55E;
            --warning: #F59E0B;
            --error: #EF4444;
            --info: #3B82F6;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-inverse: #0F172A;
            --border-primary: #334155;
            --border-secondary: #1E293B;
            --border-accent: #FFD700;
            --font-primary: 'Hind Siliguri', 'Noto Sans Bengali', 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;
        }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }

        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-section { display: flex; align-items: center; gap: 10px; }
        header .logo-section img { width: 25px; height: 25px; object-fit: cover; border-radius: 4px; }
        header .logo-section strong { font-size: 16px; font-weight: normal; }
        header .auth-buttons { display: flex; gap: 10px; }
        header .btn-auth { 
            padding: 6px 15px; 
            border-radius: 6px; 
            font-size: 14px; 
            cursor: pointer; 
            border: none; 
            font-weight: 500; 
            transition: 0.3s;
        }
        header .btn-login { background: transparent; color: var(--brand-primary); border: 1px solid var(--brand-primary); }
        header .btn-register { background: var(--brand-primary); color: var(--text-inverse); }

        main { padding-bottom: 80px; }

        .banner-container { width: 100%; max-width: 1200px; margin: 0 auto; cursor: pointer; }
        .banner-container img { 
            width: 100%; 
            aspect-ratio: 2/1; 
            object-fit: cover; 
            display: block; 
        }

        .section-container { 
            max-width: 1200px; 
            margin: 20px auto; 
            padding: 0 15px; 
        }

        .reward-card { 
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-accent)); 
            border: 2px solid var(--brand-primary); 
            border-radius: 15px; 
            padding: 30px; 
            text-align: center; 
            margin-bottom: 20px;
        }
        .reward-card h2 { color: var(--brand-primary); margin-bottom: 15px; font-size: 24px; }
        .reward-card p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-big-reg { 
            background: var(--brand-highlight); 
            color: white; 
            padding: 15px 40px; 
            font-size: 18px; 
            font-weight: bold; 
            border: none; 
            border-radius: 50px; 
            cursor: pointer; 
            box-shadow: 0 4px 15px rgba(255, 77, 77, 0.4);
            transition: 0.3s;
        }
        .btn-big-reg:hover { transform: scale(1.05); background: #ff6b6b; }

        .intro-card { 
            background: var(--bg-secondary); 
            border-radius: 15px; 
            padding: 25px; 
            border-left: 5px solid var(--brand-primary);
            margin-bottom: 30px;
        }
        .intro-card h1 { font-size: 32px; color: var(--brand-primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }

        .grid-title { font-size: 24px; margin: 30px 0 20px; color: var(--text-primary); display: flex; align-items: center; gap: 10px; }
        .grid-title i { color: var(--brand-primary); }

        .game-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
        }
        .game-card { 
            background: var(--bg-secondary); 
            border-radius: 12px; 
            overflow: hidden; 
            border: 1px solid var(--border-primary); 
            transition: 0.3s;
        }
        .game-card:hover { border-color: var(--brand-primary); transform: translateY(-5px); }
        .game-card img { 
            width: 100%; 
            aspect-ratio: 1/1; 
            object-fit: cover; 
            display: block; 
        }
        .game-card-body { padding: 12px; text-align: center; }
        .game-card-body h3 { font-size: 16px; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); 
            gap: 15px; 
            background: var(--bg-secondary); 
            padding: 20px; 
            border-radius: 15px; 
            text-align: center;
        }
        .payment-item { 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 8px; 
            color: var(--text-secondary); 
            font-size: 14px; 
        }
        .payment-item i { font-size: 24px; color: var(--brand-primary); }

        .guidelines-grid { 
            display: grid; 
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
            gap: 20px; 
            margin-bottom: 30px;
        }
        .guide-item { 
            background: var(--bg-secondary); 
            padding: 20px; 
            border-radius: 12px; 
            border-bottom: 3px solid var(--brand-primary);
        }
        .guide-item h3 { color: var(--brand-primary); margin-bottom: 10px; font-size: 18px; }
        .guide-item p { color: var(--text-secondary); font-size: 14px; }

        .review-grid { 
            display: grid; 
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
            gap: 20px; 
        }
        .review-card { 
            background: var(--bg-secondary); 
            padding: 20px; 
            border-radius: 12px; 
            border: 1px solid var(--border-primary);
        }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--text-muted); }
        .review-name { font-weight: bold; font-size: 16px; }
        .review-rating { color: var(--brand-primary); font-size: 12px; }
        .review-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); display: block; }

        .lottery-grid { 
            background: var(--bg-secondary); 
            border-radius: 15px; 
            overflow: hidden; 
        }
        .lottery-row { 
            display: grid; 
            grid-template-columns: 1fr 2fr 1fr 1fr; 
            padding: 12px 20px; 
            border-bottom: 1px solid var(--border-primary); 
            font-size: 14px; 
            align-items: center;
        }
        .lottery-row:nth-child(even) { background: var(--bg-accent); }
        .lottery-win { color: var(--brand-primary); font-weight: bold; }

        .provider-wall { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 10px; 
        }
        .provider-box { 
            background: linear-gradient(45deg, var(--bg-secondary), var(--border-primary)); 
            padding: 15px; 
            text-align: center; 
            border-radius: 8px; 
            font-weight: bold; 
            color: var(--brand-primary); 
            border: 1px solid var(--border-primary);
        }

        .faq-container { 
            display: grid; 
            gap: 15px; 
        }
        .faq-item { 
            background: var(--bg-secondary); 
            padding: 20px; 
            border-radius: 12px; 
            border: 1px solid var(--border-primary);
        }
        .faq-item h3 { color: var(--brand-primary); font-size: 17px; margin-bottom: 10px; }
        .faq-item p { color: var(--text-secondary); font-size: 14px; }

        .security-box { 
            background: var(--bg-accent); 
            border: 1px dashed var(--border-primary); 
            padding: 25px; 
            border-radius: 15px; 
            text-align: center; 
            margin-top: 40px;
        }
        .security-box h2 { color: var(--text-primary); margin-bottom: 20px; }
        .security-badges { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 20px; }
        .badge { background: var(--bg-secondary); padding: 10px 20px; border-radius: 50px; border: 1px solid var(--brand-primary); color: var(--text-primary); font-size: 14px; display: flex; align-items: center; gap: 8px; }
        .security-box p { color: var(--text-secondary); font-size: 13px; margin-bottom: 15px; }
        .age-notice { color: var(--brand-highlight); font-weight: bold; display: block; margin-bottom: 15px; }

        .navigator { 
            position: fixed; 
            bottom: 0; 
            left: 0; 
            right: 0; 
            background: var(--bg-secondary); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            padding: 12px 0; 
            border-top: 2px solid var(--brand-primary); 
            z-index: 2000; 
            box-shadow: 0 -5px 20px rgba(0,0,0,0.5);
        }
        .nav-item { 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 5px; 
            color: var(--text-secondary); 
            font-size: 12px; 
            text-decoration: none; 
        }
        .nav-item i { font-size: 20px; color: var(--text-primary); }

        footer { 
            background: var(--bg-accent); 
            padding: 40px 20px; 
            text-align: center; 
            border-top: 1px solid var(--border-primary); 
        }
        .footer-contact { display: flex; justify-content: center; gap: 20px; margin-bottom: 30px; flex-wrap: wrap; align-items: center; }
        .footer-contact a { color: var(--text-secondary); font-size: 14px; transition: 0.3s; }
        .footer-contact a:hover { color: var(--brand-primary); }
        .footer-links { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            max-width: 600px; 
            margin: 0 auto 30px; 
            text-align: left; 
        }
        .footer-links a { color: var(--text-muted); font-size: 13px; display: block; margin-bottom: 8px; }
        .footer-links a:hover { color: var(--brand-primary); }
        .footer-copy { color: var(--text-muted); font-size: 13px; border-top: 1px solid var(--border-primary); padding-top: 20px; }

        @media (max-width: 768px) {
            .footer-links { grid-template-columns: repeat(2, 1fr); }
            .lottery-row { grid-template-columns: 1fr 1fr; gap: 5px; }
            .lottery-row > *:nth-child(1), .lottery-row > *:nth-child(2) { grid-column: span 2; }
        }