:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --highlight: #FFD700;
            --bg-primary: #0F0F0F;
            --bg-secondary: #1A1A1A;
            --bg-tertiary: #262626;
            --overlay: rgba(0, 0, 0, 0.7);
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #808080;
            --text-inverse: #000000;
            --border-light: #333333;
            --border-medium: #4D4D4D;
            --border-strong: #FFD700;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
            --font-accent: 'Noto Serif Bengali', serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-primary);
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-secondary);
            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-area { display: flex; align-items: center; gap: 10px; }
        header img { width: 25px; height: 25px; border-radius: 50%; }
        header strong { font-size: 16px; font-weight: 400; color: var(--primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn {
            padding: 8px 16px;
            border-radius: 8px;
            cursor: pointer;
            font-family: var(--font-primary);
            font-weight: 500;
            transition: 0.3s;
            border: none;
            text-decoration: none;
        }
        .btn-login { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
        .btn-register { background: var(--primary); color: var(--text-inverse); }
        .btn:hover { opacity: 0.8; transform: translateY(-2px); }

        main { max-width: 1000px; margin: 0 auto; padding: 20px; }
        .banner-container { width: 100%; margin-bottom: 20px; cursor: pointer; }
        .banner-container img { 
            width: 100%; 
            aspect-ratio: 2/1; 
            object-fit: cover; 
            border-radius: 15px; 
            box-shadow: 0 4px 15px rgba(0,0,0,0.5);
        }

        .reward-card {
            background: linear-gradient(135deg, var(--bg-tertiary), #331a00);
            padding: 30px;
            border-radius: 20px;
            text-align: center;
            border: 1px solid var(--border-medium);
            margin-bottom: 25px;
        }
        .reward-card h2 { color: var(--primary); margin-bottom: 15px; font-family: var(--font-accent); }
        .reward-card p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-big { 
            background: var(--accent); 
            color: white; 
            padding: 15px 40px; 
            font-size: 20px; 
            border-radius: 50px; 
            display: inline-block; 
            font-weight: bold;
            box-shadow: 0 0 20px rgba(255, 69, 0, 0.4);
        }

        .intro-card {
            background: var(--bg-secondary);
            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(--primary);
            margin: 30px 0 20px;
            border-bottom: 1px solid var(--border-medium);
            padding-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        .game-card {
            background: var(--bg-tertiary);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            transition: 0.3s;
            border: 1px solid var(--border-light);
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--primary); }
        .game-card img { 
            width: 100%; 
            aspect-ratio: 1/1; 
            object-fit: cover; 
        }
        .game-card h3 { 
            padding: 12px; 
            text-align: center; 
            font-size: 16px; 
            color: var(--text-primary);
            background: rgba(0,0,0,0.3);
        }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .pay-item {
            background: var(--bg-tertiary);
            padding: 15px;
            border-radius: 10px;
            text-align: center;
            font-size: 14px;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
        }
        .pay-item i { display: block; margin-bottom: 8px; color: var(--primary); font-size: 20px; }

        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        .guide-item {
            background: var(--bg-secondary);
            padding: 15px;
            border-radius: 10px;
            font-size: 14px;
            border: 1px solid var(--border-medium);
        }
        .guide-item h3 { color: var(--primary); margin-bottom: 8px; font-size: 16px; }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        .review-card {
            background: var(--bg-tertiary);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--border-medium);
        }
        .rev-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .rev-header i { color: var(--primary); font-size: 24px; }
        .rev-user { font-weight: bold; font-size: 14px; }
        .rev-stars { color: var(--warning); font-size: 12px; }
        .rev-text { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; }
        .rev-date { font-size: 11px; color: var(--text-muted); }

        .lottery-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-secondary);
            border-radius: 10px;
            overflow: hidden;
        }
        .lottery-table td {
            padding: 12px;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
            text-align: center;
        }
        .lottery-table td:first-child { color: var(--text-secondary); }
        .lottery-table td:nth-child(3) { color: var(--primary); font-weight: bold; }

        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .provider-box {
            background: linear-gradient(45deg, #262626, #4d4d4d);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            font-weight: bold;
            color: var(--primary);
            border: 1px solid var(--border-medium);
        }

        .faq-item {
            background: var(--bg-secondary);
            margin-bottom: 10px;
            border-radius: 10px;
            padding: 15px;
            border: 1px solid var(--border-light);
        }
        .faq-item h3 { color: var(--primary); font-size: 18px; margin-bottom: 10px; }
        .faq-item p { font-size: 14px; color: var(--text-secondary); }

        .security-footer {
            background: var(--bg-tertiary);
            padding: 20px;
            border-radius: 15px;
            text-align: center;
            margin-top: 30px;
            border: 1px dashed var(--primary);
        }
        .sec-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 15px; }
        .sec-icons i { font-size: 30px; color: var(--primary); }
        .sec-text { font-size: 13px; color: var(--text-muted); }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            display: flex;
            justify-content: space-around;
            padding: 10px 0;
            border-top: 2px solid var(--border-strong);
            z-index: 2000;
            box-shadow: 0 -5px 15px rgba(0,0,0,0.5);
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            text-align: center;
            font-size: 12px;
            flex: 1;
        }
        .nav-item i { display: block; font-size: 20px; margin-bottom: 4px; }
        .nav-item:hover { color: var(--primary); }

        footer {
            background: var(--bg-secondary);
            padding: 40px 20px 100px;
            border-top: 1px solid var(--border-medium);
            color: var(--text-secondary);
            text-align: center;
        }
        .footer-contact { margin-bottom: 30px; display: flex; justify-content: 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;
            margin-bottom: 30px;
            text-align: left;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            display: block;
            margin-bottom: 5px;
        }
        .footer-links a:hover { color: var(--primary); }
        .copy-text { font-size: 12px; color: var(--text-muted); margin-top: 20px; }

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