:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --highlight: #FFEA00;
            --bg-main: #0B0E11;
            --bg-surface: #1B1F24;
            --bg-overlay: rgba(0, 0, 0, 0.7);
            --grad-start: #1a1a2e;
            --grad-end: #16213e;
            --success: #00C853;
            --error: #FF1744;
            --warning: #FFAB00;
            --info: #2979FF;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B3B8;
            --text-muted: #70757A;
            --text-inverse: #000000;
            --border-def: #2F3336;
            --border-strong: #474D57;
            --border-focus: #FFD700;
            --font-primary: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-secondary: 'Poppins', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { 
            background-color: var(--bg-main); 
            color: var(--text-primary); 
            font-family: var(--font-primary); 
            line-height: 1.5;
            padding-bottom: 80px;
        }
        header {
            background: var(--bg-surface);
            border-bottom: 1px solid var(--border-def);
            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; }
        header .logo-section strong { font-size: 16px; font-weight: normal; color: var(--primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-login { 
            background: transparent; border: 1px solid var(--primary); 
            color: var(--primary); padding: 6px 15px; border-radius: 5px; 
            cursor: pointer; font-family: var(--font-primary); transition: 0.3s;
        }
        .btn-register { 
            background: var(--primary); border: none; 
            color: var(--text-inverse); padding: 6px 15px; border-radius: 5px; 
            cursor: pointer; font-family: var(--font-primary); font-weight: 600; transition: 0.3s;
        }
        .btn-login:hover, .btn-register:hover { opacity: 0.8; transform: translateY(-2px); }
        main { max-width: 1200px; margin: 0 auto; padding: 20px; }
        .hero-banner { 
            width: 100%; aspect-ratio: 2/1; overflow: hidden; border-radius: 15px; 
            cursor: pointer; margin-bottom: 20px; 
        }
        .hero-banner img { width: 100%; height: 100%; object-fit: cover; }
        .reward-section { 
            background: linear-gradient(135deg, var(--grad-start), var(--grad-end)); 
            padding: 30px; border-radius: 15px; text-align: center; 
            border: 2px solid var(--primary); margin-bottom: 30px; 
        }
        .reward-section h2 { color: var(--primary); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-cta { 
            background: var(--accent); color: white; padding: 15px 30px; 
            font-size: 18px; font-weight: bold; border: none; border-radius: 50px; 
            cursor: pointer; text-transform: uppercase; box-shadow: 0 4px 15px rgba(255,69,0,0.4);
        }
        .intro-card { 
            background: var(--bg-surface); padding: 30px; border-radius: 15px; 
            border-left: 5px solid var(--primary); margin-bottom: 30px; 
        }
        .intro-card h1 { color: var(--primary); font-size: 32px; margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title { 
            font-size: 24px; color: var(--primary); margin: 30px 0 20px; 
            text-align: center; display: flex; align-items: center; justify-content: center; gap: 10px;
        }
        .game-grid { 
            display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 30px; 
        }
        .game-card { 
            background: var(--bg-surface); border-radius: 12px; overflow: hidden; 
            text-decoration: none; color: inherit; transition: 0.3s; 
            border: 1px solid var(--border-def);
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--primary); }
        .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-section { 
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; 
            background: var(--bg-surface); padding: 20px; border-radius: 15px; 
            margin-bottom: 30px; text-align: center;
        }
        .pay-item { 
            display: flex; flex-direction: column; align-items: center; 
            gap: 8px; font-size: 14px; color: var(--text-secondary);
        }
        .pay-item i { font-size: 24px; color: var(--primary); }
        .guidelines-grid { 
            display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 30px; 
        }
        .guide-card { 
            background: var(--bg-surface); padding: 20px; border-radius: 12px; 
            border: 1px solid var(--border-def);
        }
        .guide-card h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guide-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-surface); padding: 20px; border-radius: 12px; 
            border: 1px solid var(--border-def); position: relative;
        }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--secondary); }
        .review-user { font-weight: 600; font-size: 16px; }
        .review-stars { color: var(--highlight); 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-surface); border-radius: 15px; overflow: hidden; margin-bottom: 30px; 
        }
        .lottery-item { 
            display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; padding: 12px 20px; 
            border-bottom: 1px solid var(--border-def); font-size: 14px; align-items: center;
        }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-item .win-amt { color: var(--success); font-weight: bold; }
        .provider-wall { 
            display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 30px; 
        }
        .provider-box { 
            padding: 15px; text-align: center; font-weight: bold; border-radius: 8px; 
            color: var(--text-inverse); background: var(--primary); transition: 0.3s;
        }
        .provider-box:nth-child(even) { background: var(--accent); }
        .faq-section { margin-bottom: 30px; }
        .faq-item { 
            background: var(--bg-surface); margin-bottom: 10px; border-radius: 8px; 
            padding: 15px; border: 1px solid var(--border-def);
        }
        .faq-item h3 { color: var(--primary); font-size: 17px; margin-bottom: 8px; }
        .faq-item p { color: var(--text-secondary); font-size: 14px; }
        .security-banner { 
            background: var(--bg-surface); padding: 25px; border-radius: 15px; 
            text-align: center; border: 1px dashed var(--primary); margin-bottom: 30px;
        }
        .security-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 15px; flex-wrap: wrap; }
        .security-icons div { display: flex; align-items: center; gap: 8px; color: var(--text-secondary); font-size: 14px; }
        .security-icons i { color: var(--success); }
        .navigator { 
            position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-surface); 
            display: flex; justify-content: space-around; align-items: center; 
            padding: 10px 0; border-top: 1px solid var(--border-def); z-index: 2000;
        }
        .nav-item { 
            text-decoration: none; color: var(--text-secondary); 
            display: flex; flex-direction: column; align-items: center; 
            font-size: 12px; gap: 5px; transition: 0.3s;
        }
        .nav-item i { font-size: 20px; }
        .nav-item:hover { color: var(--primary); }
        footer { 
            background: var(--bg-surface); padding: 40px 20px; border-top: 1px solid var(--border-def); 
            text-align: center; color: var(--text-secondary);
        }
        .footer-contact { margin-bottom: 20px; display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; align-items: center; }
        .footer-contact a { color: var(--primary); text-decoration: none; font-size: 14px; }
        .footer-links { 
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; 
            max-width: 600px; margin: 0 auto 20px; text-align: left;
        }
        .footer-links a { color: var(--text-muted); text-decoration: none; font-size: 13px; }
        .footer-links a:hover { color: var(--primary); }
        .copyright { font-size: 13px; color: var(--text-muted); margin-top: 20px; }
        @media (max-width: 768px) {
            .payment-section { grid-template-columns: repeat(2, 1fr); }
            .footer-links { grid-template-columns: repeat(3, 1fr); }
            .lottery-item { grid-template-columns: 1fr 1fr; gap: 10px; padding: 10px; }
            .lottery-item div:nth-child(3), .lottery-item div:nth-child(4) { margin-top: 5px; }
        }