:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --highlight: #00FF00;
            --bg-main: #1A1A1A;
            --bg-surface: #2D2D2D;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #808080;
            --text-inverse: #000000;
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --border-light: #404040;
            --border-medium: #5A5A5A;
            --border-strong: #FFD700;
            --font-main: '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-main); color: var(--text-primary); font-family: var(--font-main); line-height: 1.5; }
        header { background-color: var(--bg-surface); padding: 10px 20px; display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 1000; border-bottom: 2px solid var(--border-strong); }
        .logo-area { display: flex; align-items: center; gap: 8px; }
        .logo-area img { width: 25px; height: 25px; object-fit: cover; }
        .logo-area strong { font-size: 16px; font-weight: normal; }
        .nav-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-main); }
        .btn-reg { background: var(--primary); border: none; color: var(--text-inverse); padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-main); font-weight: bold; }
        main { max-width: 1200px; margin: 0 auto; padding: 20px 15px; }
        .banner-container { margin-bottom: 25px; cursor: pointer; }
        .banner-container img { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: 15px; }
        .reward-section { background: linear-gradient(45deg, #2D2D2D, #404040); padding: 25px; border-radius: 15px; text-align: center; border: 1px solid var(--primary); margin-bottom: 25px; }
        .reward-section h2 { color: var(--primary); margin-bottom: 10px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-big-reg { background: var(--accent); color: white; padding: 15px 30px; font-size: 20px; border-radius: 50px; border: none; cursor: pointer; font-weight: bold; box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4); }
        .intro-card { background: var(--bg-surface); padding: 30px; border-radius: 20px; text-align: center; border-left: 5px solid var(--primary); margin-bottom: 30px; }
        .intro-card h1 { font-size: 32px; color: var(--primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 18px; }
        .section-title { font-size: 24px; color: var(--primary); margin: 30px 0 20px; display: flex; align-items: center; gap: 10px; }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .game-card { background: var(--bg-surface); border-radius: 15px; overflow: hidden; text-decoration: none; transition: transform 0.2s; border: 1px solid var(--border-light); }
        .game-card:hover { transform: translateY(-5px); border-color: var(--primary); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { padding: 10px; font-size: 16px; color: var(--text-primary); text-align: center; }
        .payment-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
        .payment-item { background: var(--bg-surface); padding: 15px; border-radius: 10px; 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(--primary); margin-bottom: 8px; }
        .guidelines-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
        .guide-card { background: var(--bg-surface); padding: 20px; border-radius: 15px; border-bottom: 3px solid var(--primary); }
        .guide-card h3 { color: var(--primary); margin-bottom: 10px; }
        .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; }
        .review-card { background: var(--bg-surface); padding: 20px; border-radius: 15px; border: 1px solid var(--border-medium); }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--primary); }
        .review-user { font-weight: bold; }
        .review-rating { color: var(--warning); margin: 5px 0; }
        .review-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); }
        .win-record { background: var(--bg-surface); border-radius: 15px; overflow: hidden; }
        .win-item { display: flex; justify-content: space-between; padding: 12px 20px; border-bottom: 1px solid var(--border-light); font-size: 14px; }
        .win-item:nth-child(odd) { background: rgba(255, 215, 0, 0.05); }
        .win-amount { color: var(--highlight); font-weight: bold; }
        .provider-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .provider-box { background: linear-gradient(135deg, #3d3d3d, #2d2d2d); padding: 15px; border-radius: 10px; text-align: center; font-weight: bold; color: var(--primary); border: 1px solid var(--border-medium); }
        .faq-section { display: grid; gap: 15px; }
        .faq-item { background: var(--bg-surface); padding: 20px; border-radius: 10px; border: 1px solid var(--border-light); }
        .faq-item h3 { color: var(--primary); font-size: 18px; margin-bottom: 10px; }
        .faq-item p { color: var(--text-secondary); font-size: 15px; }
        .safety-section { background: var(--bg-surface); padding: 25px; border-radius: 15px; text-align: center; border: 1px solid var(--border-medium); margin-top: 30px; }
        .safety-icons { display: flex; justify-content: center; gap: 30px; margin-bottom: 20px; flex-wrap: wrap; }
        .safety-icons div { color: var(--primary); font-size: 14px; }
        .safety-icons i { display: block; font-size: 30px; margin-bottom: 10px; }
        .navigator { position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-surface); display: flex; justify-content: space-around; padding: 10px 0; border-top: 2px solid var(--primary); z-index: 1000; }
        .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(--primary); }
        footer { background: var(--bg-surface); padding: 40px 20px; border-top: 2px solid var(--border-medium); color: var(--text-secondary); text-align: center; }
        .footer-contact { display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; margin-bottom: 30px; 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: 800px; margin: 0 auto 30px; 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; border-top: 1px solid var(--border-light); padding-top: 20px; }
        @media (max-width: 600px) {
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-links { grid-template-columns: repeat(2, 1fr); }
        }