:root {
            --primary: #FFD700;
            --secondary: #B22222;
            --accent: #FF4500;
            --highlight: #00FF00;
            --main-bg: #0F0F0F;
            --surface: #1A1A1A;
            --overlay: rgba(0, 0, 0, 0.85);
            --card-bg: #252525;
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #757575;
            --text-inverse: #000000;
            --success: #28A745;
            --warning: #FFC107;
            --error: #DC3545;
            --info: #17A2B8;
            --border-light: #333333;
            --border-medium: #444444;
            --border-strong: #FFD700;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
            --font-display: 'Noto Serif Bengali', serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { 
            background-color: var(--main-bg); 
            color: var(--text-primary); 
            font-family: var(--font-primary); 
            line-height: 1.5; 
            overflow-x: hidden;
        }
        header {
            background-color: var(--surface);
            border-bottom: 2px solid var(--border-strong);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .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(--primary); }
        .header-auth { display: flex; gap: 10px; }
        .btn-login { background: transparent; border: 1px solid var(--primary); color: var(--primary); padding: 6px 15px; cursor: pointer; border-radius: 5px; font-weight: 500; transition: 0.3s; }
        .btn-register { background: var(--primary); border: none; color: var(--text-inverse); padding: 6px 15px; cursor: pointer; border-radius: 5px; 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 15px; }
        .hero-banner { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: 15px; cursor: pointer; margin-bottom: 20px; box-shadow: 0 0 20px rgba(255, 215, 0, 0.2); }
        .reward-section { background: linear-gradient(135deg, var(--secondary), var(--accent)); padding: 30px; border-radius: 20px; text-align: center; margin-bottom: 30px; }
        .reward-section h2 { font-family: var(--font-display); font-size: 28px; margin-bottom: 15px; }
        .reward-section p { color: #fff; margin-bottom: 20px; font-size: 18px; }
        .btn-big-reg { background: var(--primary); color: var(--text-inverse); padding: 15px 40px; border-radius: 50px; font-size: 20px; font-weight: 700; border: none; cursor: pointer; box-shadow: 0 5px 15px rgba(0,0,0,0.3); transition: 0.3s; }
        .btn-big-reg:hover { transform: scale(1.05); background: var(--highlight); }
        .intro-card { background: var(--card-bg); padding: 30px; border-radius: 20px; border: 1px solid var(--border-medium); text-align: center; margin-bottom: 40px; }
        .intro-card h1 { font-family: var(--font-display); color: var(--primary); font-size: 36px; margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 18px; max-width: 800px; margin: 0 auto; }
        .section-title { font-family: var(--font-display); color: var(--primary); text-align: center; margin: 40px 0 20px; font-size: 24px; position: relative; padding-bottom: 10px; }
        .section-title::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 60px; height: 3px; background: var(--primary); }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .game-card { background: var(--surface); border-radius: 15px; overflow: hidden; text-decoration: none; border: 1px solid var(--border-light); transition: 0.3s; }
        .game-card:hover { border-color: var(--primary); transform: translateY(-5px); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { color: var(--text-primary); padding: 12px; font-size: 16px; text-align: center; }
        .payment-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 15px; text-align: center; }
        .payment-item { background: var(--card-bg); padding: 15px; border-radius: 12px; border: 1px solid var(--border-light); display: flex; flex-direction: column; align-items: center; gap: 10px; transition: 0.3s; }
        .payment-item i { font-size: 24px; color: var(--primary); }
        .payment-item span { font-size: 14px; color: var(--text-secondary); }
        .guide-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
        .guide-card { background: var(--surface); padding: 20px; border-radius: 15px; border-left: 4px 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(--card-bg); 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: 600; color: var(--text-primary); }
        .review-stars { color: var(--warning); font-size: 12px; margin-bottom: 10px; }
        .review-content { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .win-record-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
        .win-item { background: linear-gradient(90deg, var(--surface), var(--card-bg)); padding: 10px; border-radius: 8px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-light); }
        .win-item span { font-size: 13px; }
        .win-amount { color: var(--highlight); font-weight: 700; }
        .provider-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .provider-item { padding: 15px; border-radius: 10px; text-align: center; font-weight: 700; color: var(--text-primary); background: var(--secondary); border: 1px solid var(--primary); }
        .faq-section { margin-top: 40px; }
        .faq-item { background: var(--surface); margin-bottom: 10px; border-radius: 10px; overflow: hidden; border: 1px solid var(--border-light); }
        .faq-question { padding: 15px 20px; background: var(--card-bg); cursor: pointer; color: var(--primary); font-weight: 600; display: block; width: 100%; text-align: left; border: none; font-family: var(--font-primary); font-size: 16px; }
        .faq-answer { padding: 15px 20px; color: var(--text-secondary); font-size: 14px; line-height: 1.6; border-top: 1px solid var(--border-light); }
        .security-section { background: var(--surface); padding: 30px; border-radius: 20px; text-align: center; margin-top: 40px; border: 2px dashed var(--border-medium); }
        .security-badges { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 20px; }
        .security-badge { display: flex; align-items: center; gap: 8px; color: var(--text-secondary); font-size: 14px; }
        .security-badge i { color: var(--highlight); }
        .security-notice { color: var(--error); font-weight: 600; margin: 15px 0; font-size: 14px; }
        .navigator { position: fixed; bottom: 0; left: 0; right: 0; background: var(--surface); display: flex; justify-content: space-around; align-items: center; padding: 10px 0; border-top: 2px solid var(--primary); z-index: 1000; box-shadow: 0 -5px 15px rgba(0,0,0,0.5); }
        .nav-item { text-decoration: none; color: var(--text-secondary); display: flex; flex-direction: column; align-items: center; gap: 5px; font-size: 12px; transition: 0.3s; }
        .nav-item i { font-size: 20px; }
        .nav-item:hover { color: var(--primary); }
        footer { background: var(--surface); padding: 40px 20px 100px; border-top: 1px solid var(--border-medium); color: var(--text-secondary); }
        .footer-contact { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 30px; align-items: center; }
        .footer-contact a { color: var(--primary); text-decoration: none; font-size: 14px; transition: 0.3s; }
        .footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 30px; }
        .footer-link-col a { display: block; color: var(--text-muted); text-decoration: none; font-size: 13px; margin-bottom: 8px; transition: 0.3s; }
        .footer-link-col a:hover { color: var(--primary); }
        .footer-copy { text-align: center; font-size: 13px; border-top: 1px solid var(--border-light); padding-top: 20px; }
        @media (max-width: 768px) { .footer-links { grid-template-columns: repeat(2, 1fr); } }