:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --highlight: #FFEB3B;
            --bg-main: #0F0F0F;
            --bg-surface: #1A1A1A;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --grad-start: #1a1a1a;
            --grad-end: #000000;
            --text-primary: #FFFFFF;
            --text-secondary: #BDBDBD;
            --text-muted: #757575;
            --text-inverse: #000000;
            --success: #4CAF50;
            --error: #F44336;
            --warning: #FF9800;
            --info: #2196F3;
            --border-default: #333333;
            --border-strong: #FFD700;
            --border-soft: #2A2A2A;
            --font-main: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-sec: 'Roboto', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { 
            background-color: var(--bg-main); 
            background: linear-gradient(to bottom, var(--grad-start), var(--grad-end)); 
            color: var(--text-primary); 
            font-family: var(--font-main); 
            line-height: 1.5; 
            padding-bottom: 80px;
        }
        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 img { width: 25px; height: 25px; object-fit: cover; }
        header strong { font-size: 16px; font-weight: normal; color: var(--primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn { 
            padding: 8px 16px; 
            border-radius: 8px; 
            cursor: pointer; 
            font-family: var(--font-main); 
            font-weight: 600; 
            border: none; 
            transition: 0.3s; 
            text-decoration: none;
        }
        .btn-login { background-color: transparent; color: var(--primary); border: 1px solid var(--primary); }
        .btn-register { background-color: var(--primary); color: var(--text-inverse); }
        .btn:hover { opacity: 0.8; transform: scale(1.05); }
        
        main { max-width: 1200px; margin: 0 auto; padding: 20px; }
        .banner-container { width: 100%; aspect-ratio: 2/1; overflow: hidden; border-radius: 15px; margin-bottom: 20px; cursor: pointer; border: 2px solid var(--border-soft); }
        .banner-container img { width: 100%; height: 100%; object-fit: cover; }
        
        .reward-section { 
            background: linear-gradient(45deg, var(--bg-surface), #2a2a2a); 
            padding: 30px; 
            border-radius: 20px; 
            text-align: center; 
            border: 1px solid var(--border-strong); 
            margin-bottom: 30px; 
        }
        .reward-section h2 { color: var(--primary); font-size: 28px; margin-bottom: 15px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 18px; }
        .btn-lg { 
            background: linear-gradient(to right, var(--primary), var(--highlight)); 
            color: var(--text-inverse); 
            font-size: 20px; 
            padding: 15px 40px; 
            border-radius: 50px; 
            font-weight: bold; 
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
        }

        .intro-card { 
            background-color: var(--bg-surface); 
            padding: 25px; 
            border-radius: 20px; 
            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(--primary); 
            margin: 30px 0 20px; 
            display: flex; 
            align-items: center; 
            gap: 10px; 
        }
        .section-title::after { content: ""; flex: 1; height: 1px; background: var(--border-default); }

        .game-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
        }
        .game-card { 
            background-color: var(--bg-surface); 
            border-radius: 15px; 
            overflow: hidden; 
            text-decoration: none; 
            transition: 0.3s; 
            border: 1px solid var(--border-soft); 
        }
        .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; 
            white-space: nowrap; 
            overflow: hidden; 
            text-overflow: ellipsis; 
        }

        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(4, 1fr); 
            gap: 10px; 
            margin-bottom: 30px; 
        }
        .payment-item { 
            background-color: var(--bg-surface); 
            padding: 15px; 
            border-radius: 12px; 
            text-align: center; 
            font-size: 14px; 
            border: 1px solid var(--border-soft); 
            color: var(--text-secondary); 
        }
        .payment-item i { 
            display: block; 
            font-size: 24px; 
            color: var(--primary); 
            margin-bottom: 8px; 
        }

        .guideline-grid { 
            display: grid; 
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
            gap: 20px; 
            margin-bottom: 30px; 
        }
        .guideline-card { 
            background-color: var(--bg-surface); 
            padding: 20px; 
            border-radius: 15px; 
            border: 1px solid var(--border-soft); 
        }
        .guideline-card h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guideline-card p { color: var(--text-secondary); font-size: 14px; }

        .comment-grid { 
            display: grid; 
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
            gap: 20px; 
            margin-bottom: 30px; 
        }
        .comment-card { 
            background-color: var(--bg-surface); 
            padding: 20px; 
            border-radius: 15px; 
            border: 1px solid var(--border-soft); 
        }
        .comment-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .comment-header i { font-size: 30px; color: var(--primary); }
        .comment-header .user-info { display: flex; flex-direction: column; }
        .comment-header .username { font-weight: bold; color: var(--text-primary); }
        .comment-header .date { font-size: 12px; color: var(--text-muted); }
        .stars { color: var(--highlight); font-size: 14px; margin-bottom: 10px; }
        .comment-text { color: var(--text-secondary); font-size: 14px; }

        .lottery-list { 
            background-color: var(--bg-surface); 
            border-radius: 15px; 
            overflow: hidden; 
            margin-bottom: 30px; 
        }
        .lottery-item { 
            display: grid; 
            grid-template-columns: 1fr 1fr 1fr 1fr; 
            padding: 12px 20px; 
            border-bottom: 1px solid var(--border-soft); 
            font-size: 14px; 
            text-align: center; 
            align-items: center; 
        }
        .lottery-item:nth-child(even) { background-color: #222; }
        .lottery-item .win-amount { color: var(--primary); font-weight: bold; }

        .provider-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 10px; 
            margin-bottom: 30px; 
        }
        .provider-box { 
            background: linear-gradient(135deg, #333, #1a1a1a); 
            padding: 20px; 
            text-align: center; 
            border-radius: 10px; 
            font-weight: bold; 
            color: var(--primary); 
            border: 1px solid var(--border-soft); 
        }

        .faq-section { margin-bottom: 30px; }
        .faq-item { 
            background-color: var(--bg-surface); 
            margin-bottom: 10px; 
            border-radius: 10px; 
            border: 1px solid var(--border-soft); 
        }
        .faq-question { 
            padding: 15px 20px; 
            cursor: pointer; 
            font-weight: bold; 
            color: var(--primary); 
            display: flex; 
            justify-content: space-between; 
        }
        .faq-answer { padding: 0 20px 15px; color: var(--text-secondary); font-size: 14px; display: block; }

        .security-section { 
            background-color: var(--bg-surface); 
            padding: 25px; 
            border-radius: 20px; 
            text-align: center; 
            border: 1px solid var(--border-default); 
        }
        .security-icons { display: flex; justify-content: center; gap: 30px; margin-bottom: 20px; flex-wrap: wrap; }
        .sec-item { color: var(--text-secondary); font-size: 14px; }
        .sec-item i { display: block; font-size: 24px; color: var(--success); margin-bottom: 5px; }

        .navigator { 
            position: fixed; 
            bottom: 0; 
            left: 0; 
            right: 0; 
            background-color: var(--bg-surface); 
            border-top: 2px solid var(--border-strong); 
            display: flex; 
            justify-content: space-around; 
            padding: 10px 0; 
            z-index: 1000; 
        }
        .nav-link { 
            text-decoration: none; 
            color: var(--text-secondary); 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            font-size: 12px; 
            gap: 5px; 
        }
        .nav-link i { font-size: 20px; color: var(--primary); }

        footer { 
            background-color: var(--bg-surface); 
            padding: 40px 20px; 
            border-top: 1px solid var(--border-default); 
            text-align: center; 
        }
        .footer-contact { margin-bottom: 30px; display: flex; justify-content: center; align-items: center; gap: 15px; flex-wrap: wrap; }
        .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-secondary); text-decoration: none; font-size: 14px; }
        .footer-copy { color: var(--text-muted); font-size: 13px; }

        @media (max-width: 600px) {
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-links { grid-template-columns: repeat(2, 1fr); }
        }