:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --bg-main: #0F0F0F;
            --bg-surface: #1A1A1A;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #757575;
            --text-highlight: #FFD700;
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --border-default: #333333;
            --border-strong: #444444;
            --border-accent: #FFD700;
            --font-primary: '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-primary); 
            line-height: 1.5; 
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-surface);
            border-bottom: 2px solid var(--border-accent);
            padding: 0 15px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        header .logo-area { display: flex; align-items: center; gap: 10px; }
        header .logo-area img { width: 25px; height: 25px; }
        header .logo-area strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn { 
            padding: 8px 16px; 
            border-radius: 8px; 
            cursor: pointer; 
            font-family: var(--font-primary); 
            font-weight: 600; 
            transition: 0.3s; 
            border: none; 
            text-decoration: none;
            font-size: 14px;
        }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--border-accent); }
        .btn-register { background: var(--primary); color: #000; }
        .btn-register:hover { background: var(--accent); color: #fff; }
        
        main { padding: 15px; max-width: 1200px; margin: 0 auto; padding-bottom: 80px; }
        .banner-container { margin-bottom: 20px; }
        .banner-img { 
            width: 100%; 
            aspect-ratio: 2/1; 
            object-fit: cover; 
            border-radius: 15px; 
            cursor: pointer; 
            box-shadow: 0 4px 15px rgba(0,0,0,0.5);
        }

        .reward-section {
            background: linear-gradient(135deg, #1a1a1a 0%, #331a00 100%);
            padding: 25px;
            border-radius: 15px;
            text-align: center;
            border: 1px solid var(--border-accent);
            margin-bottom: 25px;
        }
        .reward-section h2 { color: var(--primary); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-lg { 
            padding: 15px 30px; 
            font-size: 18px; 
            background: var(--primary); 
            color: #000; 
            border-radius: 50px; 
            display: inline-block; 
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
        }

        .intro-card {
            background: var(--bg-surface);
            padding: 25px;
            border-radius: 15px;
            border-left: 5px solid var(--primary);
            margin-bottom: 30px;
        }
        .intro-card h1 { font-size: 32px; color: var(--primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }

        .section-title { 
            font-size: 24px; 
            color: var(--text-primary); 
            margin: 30px 0 20px; 
            display: flex; 
            align-items: center; 
            gap: 10px; 
            border-bottom: 2px solid var(--border-default);
            padding-bottom: 10px;
        }
        .section-title i { color: var(--primary); }

        .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: 0.3s; 
            border: 1px solid var(--border-default);
        }
        .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: 12px; 
            font-size: 16px; 
            color: var(--text-primary); 
            text-align: center; 
            background: #222;
        }

        .payment-methods { 
            display: grid; 
            grid-template-columns: repeat(4, 1fr); 
            gap: 10px; 
            margin-bottom: 30px;
        }
        .payment-item { 
            background: var(--bg-surface); 
            padding: 15px 5px; 
            border-radius: 10px; 
            text-align: center; 
            font-size: 12px; 
            color: var(--text-secondary);
            border: 1px solid var(--border-default);
        }
        .payment-item i { 
            display: block; 
            font-size: 20px; 
            color: var(--primary); 
            margin-bottom: 8px; 
        }

        .guidelines-grid { 
            display: grid; 
            grid-template-columns: 1fr; 
            gap: 15px; 
        }
        .guide-item { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: 12px; 
            border: 1px solid var(--border-default);
        }
        .guide-item h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guide-item p { color: var(--text-secondary); font-size: 14px; }

        .reviews-grid { 
            display: grid; 
            grid-template-columns: 1fr; 
            gap: 15px; 
        }
        .review-card { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: 12px; 
            border: 1px solid var(--border-default);
        }
        .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: bold; color: var(--text-primary); }
        .review-stars { color: var(--warning); font-size: 12px; margin-left: 10px; }
        .review-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
        .review-date { color: var(--text-muted); font-size: 12px; display: block; }

        .lottery-list { 
            background: var(--bg-surface); 
            border-radius: 12px; 
            overflow: hidden; 
        }
        .lottery-item { 
            display: flex; 
            justify-content: space-between; 
            padding: 12px 15px; 
            border-bottom: 1px solid var(--border-default); 
            font-size: 14px; 
        }
        .lottery-item:last-child { border: none; }
        .win-amount { color: var(--primary); font-weight: bold; }

        .providers-wall { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 10px; 
        }
        .provider-box { 
            padding: 15px; 
            text-align: center; 
            border-radius: 10px; 
            font-weight: bold; 
            font-size: 14px; 
            color: #000;
            background: var(--primary);
        }
        .provider-box:nth-child(even) { background: var(--secondary); }

        .faq-section { margin-bottom: 30px; }
        .faq-item { 
            background: var(--bg-surface); 
            margin-bottom: 10px; 
            border-radius: 10px; 
            overflow: hidden; 
            border: 1px solid var(--border-default);
        }
        .faq-question { 
            padding: 15px; 
            cursor: pointer; 
            font-weight: 600; 
            color: var(--primary); 
            display: flex; 
            justify-content: space-between; 
        }
        .faq-answer { padding: 0 15px 15px; color: var(--text-secondary); font-size: 14px; }

        .security-section { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: 15px; 
            text-align: center; 
            border: 1px solid var(--border-strong);
        }
        .security-badges { display: flex; justify-content: center; gap: 20px; margin-bottom: 15px; flex-wrap: wrap; }
        .badge { color: var(--text-primary); font-size: 13px; display: flex; align-items: center; gap: 5px; }
        .badge i { color: var(--success); }
        .security-notice { color: var(--text-muted); font-size: 12px; margin-top: 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(--border-accent); 
            z-index: 2000;
        }
        .nav-item { 
            text-decoration: none; 
            color: var(--text-secondary); 
            text-align: center; 
            font-size: 11px; 
            display: flex; 
            flex-direction: column; 
            gap: 4px;
        }
        .nav-item i { font-size: 20px; }
        .nav-item:hover { color: var(--primary); }

        footer { 
            background: var(--bg-surface); 
            padding: 30px 15px; 
            text-align: center; 
            border-top: 1px solid var(--border-default);
        }
        .footer-contact { margin-bottom: 20px; }
        .contact-links { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; margin-top: 10px; }
        .contact-links a { color: var(--text-secondary); text-decoration: none; font-size: 13px; }
        .footer-links { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            margin-bottom: 25px; 
            text-align: left;
        }
        .footer-links a { 
            color: var(--text-muted); 
            text-decoration: none; 
            font-size: 12px; 
            display: block; 
            margin-bottom: 5px; 
        }
        .footer-copy { color: var(--text-muted); font-size: 12px; border-top: 1px solid var(--border-default); padding-top: 15px; }

        @media (min-width: 768px) {
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-methods { grid-template-columns: repeat(8, 1fr); }
            .guidelines-grid { grid-template-columns: repeat(3, 1fr); }
            .reviews-grid { grid-template-columns: repeat(3, 1fr); }
            .providers-wall { grid-template-columns: repeat(4, 1fr); }
        }