:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #111827;
            --brand-primary: #FFD700;
            --brand-secondary: #EAB308;
            --brand-highlight: #C026D3;
            --brand-cta: #10B981;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-light: #334155;
            --border-medium: #475569;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-secondary);
            padding: 10px 15px;
            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: var(--text-primary); }
        .header-logo img { width: 25px; height: 25px; border-radius: 4px; }
        .header-logo strong { font-size: 16px; font-weight: normal; }
        .header-btns { display: flex; gap: 10px; }
        .btn-login { background: transparent; border: 1px solid var(--brand-primary); color: var(--brand-primary); padding: 6px 15px; border-radius: 6px; cursor: pointer; font-family: inherit; }
        .btn-reg { background: var(--brand-primary); border: none; color: var(--bg-primary); padding: 6px 15px; border-radius: 6px; cursor: pointer; font-weight: 600; font-family: inherit; }
        
        main { max-width: 1200px; margin: 0 auto; padding: 15px; }
        .banner-container { width: 100%; margin-bottom: 20px; cursor: pointer; }
        .banner-container img { width: 100%; aspect-ratio: 2/1; border-radius: 12px; object-fit: cover; }
        
        .reward-section {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-accent));
            padding: 25px;
            border-radius: 16px;
            text-align: center;
            border: 1px solid var(--border-medium);
            margin-bottom: 25px;
        }
        .reward-section h2 { color: var(--brand-primary); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .cta-big-btn { 
            background: var(--brand-cta); 
            color: white; 
            padding: 15px 30px; 
            border-radius: 50px; 
            text-decoration: none; 
            font-weight: bold; 
            font-size: 18px; 
            display: inline-block; 
            transition: 0.3s;
            border: none;
            cursor: pointer;
        }
        .cta-big-btn:hover { transform: scale(1.05); box-shadow: 0 0 20px var(--brand-cta); }

        .intro-card {
            background: var(--bg-secondary);
            padding: 30px;
            border-radius: 16px;
            border-left: 5px solid var(--brand-primary);
            margin-bottom: 30px;
        }
        .intro-card h1 { font-size: 30px; color: var(--brand-primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; line-height: 1.8; }

        .section-title { 
            font-size: 24px; 
            margin: 30px 0 20px; 
            color: var(--text-primary); 
            text-align: center; 
            position: relative; 
        }
        .section-title::after { content: ''; display: block; width: 50px; height: 3px; background: var(--brand-primary); margin: 10px auto; }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .game-card {
            background: var(--bg-secondary);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            transition: 0.3s;
            border: 1px solid var(--border-light);
        }
        .game-card:hover { border-color: var(--brand-primary); transform: translateY(-5px); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { 
            padding: 12px; 
            font-size: 16px; 
            text-align: center; 
            color: var(--text-primary); 
            font-weight: 500; 
        }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .payment-item {
            background: var(--bg-accent);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 14px;
        }
        .payment-item i { display: block; font-size: 24px; color: var(--brand-primary); margin-bottom: 8px; }

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

        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .review-card {
            background: var(--bg-accent);
            padding: 20px;
            border-radius: 12px;
            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(--brand-primary); }
        .review-user { font-weight: bold; font-size: 15px; }
        .review-stars { color: #FACC15; font-size: 14px; margin-bottom: 10px; }
        .review-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); }

        .lottery-list {
            background: var(--bg-secondary);
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 30px;
        }
        .lottery-item {
            display: grid;
            grid-template-columns: 1fr 2fr 1fr 1fr;
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
            text-align: center;
            align-items: center;
        }
        .lottery-item:nth-child(even) { background: var(--bg-accent); }
        .win-amount { color: var(--brand-cta); font-weight: bold; }

        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .provider-item {
            background: linear-gradient(45deg, var(--bg-secondary), var(--bg-accent));
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            border: 1px solid var(--brand-highlight);
            color: var(--brand-primary);
            font-weight: bold;
            font-size: 16px;
        }

        .faq-section { margin-bottom: 30px; }
        .faq-item {
            background: var(--bg-secondary);
            margin-bottom: 10px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
        }
        .faq-question {
            padding: 15px;
            font-weight: bold;
            color: var(--brand-primary);
            cursor: pointer;
            display: block;
        }
        .faq-answer {
            padding: 0 15px 15px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        .security-footer {
            background: var(--bg-accent);
            padding: 25px;
            border-radius: 16px;
            text-align: center;
            border: 1px solid var(--border-light);
            margin-bottom: 30px;
        }
        .security-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 15px; flex-wrap: wrap; }
        .security-icons div { color: var(--text-secondary); font-size: 14px; }
        .security-icons i { color: var(--brand-cta); font-size: 24px; display: block; margin-bottom: 5px; }
        .age-notice { color: var(--text-muted); font-size: 13px; margin-top: 15px; }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            padding: 10px 0;
            border-top: 2px solid var(--brand-primary);
            z-index: 1001;
            box-shadow: 0 -2px 10px rgba(0,0,0,0.5);
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 12px;
            gap: 5px;
        }
        .nav-item i { font-size: 20px; color: var(--text-primary); }

        footer {
            background-color: var(--bg-secondary);
            padding: 40px 15px 100px;
            border-top: 1px solid var(--border-light);
        }
        .footer-contact {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 15px;
            margin-bottom: 30px;
            flex-wrap: wrap;
            text-align: center;
        }
        .footer-contact a { color: var(--text-secondary); text-decoration: none; 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;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            display: block;
            padding: 5px 0;
        }
        .footer-copyright {
            text-align: center;
            color: var(--text-muted);
            font-size: 12px;
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
        }

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