:root {
            --primary: #FFD700;
            --secondary: #C5A000;
            --accent: #FF4500;
            --highlight: #FFCC00;
            --bg-main: #0F111A;
            --bg-surface: #1A1C26;
            --bg-overlay: rgba(0, 0, 0, 0.85);
            --bg-contrast: #05060B;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B3B8;
            --text-muted: #70737A;
            --text-inverse: #000000;
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --border-light: #2D303E;
            --border-medium: #3F4358;
            --border-strong: #FFD700;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-main);
            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-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-section { display: flex; align-items: center; gap: 10px; }
        header .logo-section img { width: 25px; height: 25px; border-radius: 4px; }
        header .logo-section strong { font-size: 16px; font-weight: normal; color: var(--primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn {
            padding: 8px 16px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            font-weight: 600;
            transition: 0.3s;
            font-family: inherit;
        }
        .btn-login { background-color: var(--border-medium); color: var(--text-primary); }
        .btn-register { background-color: var(--primary); color: var(--text-inverse); }
        .btn:hover { opacity: 0.9; transform: translateY(-2px); }
        main { max-width: 1000px; margin: 0 auto; padding: 20px; }
        .hero-banner { 
            width: 100%; 
            aspect-ratio: 2/1; 
            border-radius: 15px; 
            overflow: hidden; 
            cursor: pointer; 
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .hero-banner img { width: 100%; height: 100%; object-fit: cover; }
        .reward-section {
            background: linear-gradient(135deg, var(--bg-surface), var(--bg-contrast));
            border: 2px solid var(--border-medium);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            margin: 20px 0;
        }
        .reward-section h2 { color: var(--primary); margin-bottom: 15px; font-size: 28px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-large {
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            color: var(--text-inverse);
            font-size: 20px;
            padding: 15px 40px;
            border-radius: 12px;
            display: inline-block;
            text-decoration: none;
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
        }
        .intro-card {
            background-color: var(--bg-surface);
            border-left: 5px solid var(--primary);
            padding: 25px;
            border-radius: 12px;
            margin: 20px 0;
        }
        .intro-card h1 { font-size: 40px; color: var(--primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title { 
            font-size: 32px; 
            color: var(--primary); 
            margin: 40px 0 20px; 
            text-align: center;
            border-bottom: 2px solid var(--border-light);
            padding-bottom: 10px;
        }
        .game-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
        }
        .game-card { 
            background-color: var(--bg-surface); 
            border-radius: 12px; 
            text-decoration: none; 
            transition: 0.3s; 
            border: 1px solid var(--border-light); 
            overflow: hidden;
            display: block;
        }
        .game-card:hover { border-color: var(--primary); transform: scale(1.02); }
        .game-card img { 
            width: 100%; 
            aspect-ratio: 1/1; 
            object-fit: cover; 
            display: block; 
        }
        .game-card h3 { 
            padding: 12px; 
            text-align: center; 
            font-size: 18px; 
            color: var(--text-primary); 
        }
        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(4, 1fr); 
            gap: 10px; 
            margin-bottom: 40px;
        }
        .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;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .payment-item i { color: var(--primary); font-size: 20px; }
        .guidelines { 
            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: 1px solid var(--border-medium); 
        }
        .guide-card h3 { color: var(--primary); margin-bottom: 10px; font-size: 20px; }
        .guide-card p { color: var(--text-secondary); font-size: 14px; }
        .review-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
        }
        .review-card { 
            background: var(--bg-surface); 
            padding: 15px; 
            border-radius: 12px; 
            border: 1px solid var(--border-light); 
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { color: var(--primary); font-size: 24px; }
        .review-user { font-weight: bold; font-size: 14px; }
        .review-stars { color: var(--highlight); font-size: 12px; margin-bottom: 5px; }
        .review-text { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
        .review-date { font-size: 11px; color: var(--text-muted); }
        .lottery-list { 
            background: var(--bg-surface); 
            border-radius: 15px; 
            padding: 15px; 
            border: 1px solid var(--border-medium); 
        }
        .lottery-item { 
            display: flex; 
            justify-content: space-between; 
            align-items: center; 
            padding: 10px 0; 
            border-bottom: 1px solid var(--border-light); 
            font-size: 14px; 
        }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-win { color: var(--primary); font-weight: bold; }
        .provider-wall { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 10px; 
        }
        .provider-item { 
            background: linear-gradient(45deg, var(--bg-surface), var(--border-medium)); 
            padding: 20px; 
            text-align: center; 
            border-radius: 10px; 
            font-weight: bold; 
            color: var(--primary); 
            border: 1px solid var(--border-light); 
        }
        .faq-section { 
            display: grid; 
            gap: 15px; 
        }
        .faq-card { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: 10px; 
            border: 1px solid var(--border-medium); 
        }
        .faq-card h3 { color: var(--primary); font-size: 18px; margin-bottom: 10px; }
        .faq-card p { color: var(--text-secondary); font-size: 14px; }
        .security-box { 
            background: var(--bg-contrast); 
            border: 2px solid var(--border-light); 
            padding: 30px; 
            border-radius: 20px; 
            text-align: center; 
            margin: 40px 0; 
        }
        .security-icons { 
            display: flex; 
            justify-content: center; 
            gap: 30px; 
            margin-bottom: 20px; 
            flex-wrap: wrap; 
        }
        .security-icon-item { color: var(--primary); font-size: 30px; }
        .security-box p { color: var(--text-muted); font-size: 14px; 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: 3px solid var(--primary); 
            z-index: 2000; 
        }
        .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-color: var(--bg-contrast); 
            padding: 40px 20px 100px; 
            text-align: center; 
            border-top: 1px solid var(--border-medium); 
        }
        .footer-contact { margin-bottom: 30px; display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; align-items: center; }
        .footer-contact a { color: var(--text-secondary); text-decoration: none; font-size: 14px; }
        .footer-links { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 20px; 
            text-align: left; 
            margin-bottom: 30px; 
        }
        .footer-links a { 
            display: block; 
            color: var(--text-muted); 
            text-decoration: none; 
            font-size: 13px; 
            margin-bottom: 8px; 
        }
        .footer-copy { color: var(--text-muted); font-size: 12px; margin-top: 20px; }
        @media (max-width: 600px) {
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-links { grid-template-columns: repeat(2, 1fr); }
        }