:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --highlight: #FFCC00;
            --bg-main: #0B0E11;
            --bg-surface: #1A1D23;
            --bg-elevated: #2B3139;
            --overlay: rgba(0, 0, 0, 0.8);
            --success: #00C853;
            --error: #FF5252;
            --warning: #FFB300;
            --info: #2196F3;
            --text-primary: #FFFFFF;
            --text-secondary: #B7B7B7;
            --text-disabled: #616161;
            --text-inverse: #0B0E11;
            --border-light: #363A45;
            --border-medium: #4A4E5C;
            --border-strong: #FFD700;
            --font-main: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-alt: '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; overflow-x: hidden; }
        header { background-color: var(--bg-surface); height: 60px; display: flex; align-items: center; justify-content: space-between; padding: 0 15px; position: sticky; top: 0; z-index: 1000; border-bottom: 2px solid var(--border-light); }
        header .logo-section { display: flex; align-items: center; gap: 10px; }
        header img { width: 25px; height: 25px; object-fit: cover; }
        header strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--primary); padding: 5px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-main); transition: 0.3s; }
        .btn-register { background: var(--primary); color: var(--text-inverse); border: none; padding: 5px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-main); font-weight: 600; transition: 0.3s; }
        .btn-register:hover, .btn-login:hover { opacity: 0.8; }
        main { padding: 0 10px 80px 10px; max-width: 1200px; margin: 0 auto; }
        .hero-banner { width: 100%; aspect-ratio: 2/1; overflow: hidden; border-radius: 15px; margin-top: 10px; cursor: pointer; }
        .hero-banner img { width: 100%; height: 100%; object-fit: cover; }
        .reward-section { background: linear-gradient(45deg, var(--bg-elevated), var(--bg-surface)); padding: 25px; border-radius: 15px; text-align: center; margin: 20px 0; border: 1px solid var(--border-medium); }
        .reward-section h2 { color: var(--primary); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-big-reg { background: var(--accent); color: white; border: none; padding: 15px 30px; font-size: 18px; font-weight: bold; border-radius: 50px; cursor: pointer; 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; margin: 20px 0; border-bottom: 4px solid var(--primary); }
        .intro-card h1 { font-size: 32px; color: var(--primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; line-height: 1.8; }
        .section-title { color: var(--text-primary); font-size: 22px; margin: 30px 0 20px; display: flex; align-items: center; gap: 10px; }
        .section-title::before { content: ''; width: 4px; height: 20px; background: var(--primary); display: inline-block; }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .game-card { background: var(--bg-surface); border-radius: 12px; overflow: hidden; text-decoration: none; transition: transform 0.3s; 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; display: block; }
        .game-card h3 { padding: 10px; font-size: 14px; text-align: center; color: var(--text-primary); }
        .payment-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 30px; }
        .pay-item { background: var(--bg-surface); padding: 15px 5px; border-radius: 10px; text-align: center; border: 1px solid var(--border-light); }
        .pay-item i { display: block; font-size: 20px; color: var(--primary); margin-bottom: 8px; }
        .pay-item span { font-size: 12px; color: var(--text-secondary); }
        .guideline-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
        .guide-card { background: var(--bg-elevated); padding: 20px; border-radius: 12px; border-left: 4px solid var(--primary); }
        .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: 15px; }
        .review-card { background: var(--bg-surface); padding: 20px; border-radius: 15px; border: 1px solid var(--border-light); }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--secondary); }
        .review-header .user-info { flex: 1; }
        .review-header .username { font-weight: 600; font-size: 15px; }
        .review-header .stars { color: var(--highlight); font-size: 12px; }
        .review-body { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-disabled); text-align: right; }
        .lottery-list { background: var(--bg-surface); border-radius: 15px; overflow: hidden; }
        .lottery-item { display: grid; grid-template-columns: 1fr 2fr 1fr 1fr; padding: 12px 15px; border-bottom: 1px solid var(--border-light); font-size: 13px; align-items: center; }
        .lottery-item:nth-child(even) { background: var(--bg-elevated); }
        .lottery-item .win-amount { color: var(--primary); font-weight: bold; }
        .provider-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .provider-item { background: var(--bg-elevated); padding: 15px; text-align: center; border-radius: 8px; font-weight: bold; color: var(--highlight); border: 1px solid var(--border-medium); }
        .faq-section { margin-bottom: 30px; }
        .faq-item { background: var(--bg-surface); margin-bottom: 10px; border-radius: 10px; overflow: hidden; border: 1px solid var(--border-light); }
        .faq-question { padding: 15px; font-weight: 600; color: var(--primary); cursor: pointer; display: flex; justify-content: space-between; }
        .faq-answer { padding: 15px; color: var(--text-secondary); font-size: 14px; border-top: 1px solid var(--border-light); }
        .security-box { background: linear-gradient(135deg, #1a1d23, #2b3139); padding: 20px; border-radius: 15px; text-align: center; border: 1px solid var(--primary); }
        .security-box h2 { color: var(--primary); margin-bottom: 15px; }
        .security-box p { font-size: 14px; color: var(--text-secondary); margin-bottom: 15px; }
        .security-links { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
        .security-links a { color: var(--highlight); text-decoration: none; font-size: 13px; border: 1px solid var(--highlight); padding: 5px 10px; border-radius: 5px; }
        .navigator { position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-surface); display: flex; justify-content: space-around; align-items: center; height: 65px; border-top: 2px solid var(--primary); z-index: 2000; padding: 0 10px; }
        .nav-item { text-decoration: none; display: flex; flex-direction: column; align-items: center; gap: 5px; color: var(--text-secondary); font-size: 12px; }
        .nav-item i { font-size: 20px; color: var(--primary); }
        footer { background: var(--bg-surface); padding: 40px 15px 100px 15px; border-top: 1px solid var(--border-medium); }
        .footer-contact { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 20px; margin-bottom: 30px; border-bottom: 1px solid var(--border-light); padding-bottom: 20px; }
        .footer-contact a { color: var(--text-secondary); text-decoration: none; font-size: 14px; }
        .footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; margin-bottom: 30px; }
        .footer-links a { display: block; color: var(--text-secondary); text-decoration: none; font-size: 13px; margin-bottom: 8px; }
        .footer-copy { text-align: center; color: var(--text-disabled); font-size: 12px; }
        @media (max-width: 600px) { .payment-grid { grid-template-columns: repeat(2, 1fr); } .footer-links { grid-template-columns: repeat(2, 1fr); } }