:root {
            --brand-primary: #FFD700;
            --brand-secondary: #C0C0C0;
            --brand-accent: #FF4500;
            --brand-highlight: #FFB800;
            --bg-primary: #0F0F0F;
            --bg-secondary: #1A1A1A;
            --bg-tertiary: #262626;
            --bg-surface: #121212;
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-tertiary: #808080;
            --text-inverse: #000000;
            --border-default: #333333;
            --border-strong: #4D4D4D;
            --border-brand: #FFD700;
            --success: #28A745;
            --warning: #FFC107;
            --danger: #DC3545;
            --info: #17A2B8;
            --font-main: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-accent: 'Poppins', sans-serif;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { 
            background-color: var(--bg-primary); 
            color: var(--text-primary); 
            font-family: var(--font-main); 
            line-height: 1.5; 
            overflow-x: hidden;
        }

        header {
            background-color: var(--bg-secondary);
            border-bottom: 1px solid var(--border-default);
            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: 4px; }
        header strong { font-size: 16px; font-weight: normal; }
        header .auth-btns { display: flex; gap: 10px; }
        .btn-auth { 
            padding: 6px 15px; 
            border-radius: 5px; 
            cursor: pointer; 
            font-size: 14px; 
            font-weight: 600; 
            border: none; 
            transition: 0.3s;
        }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--border-strong); }
        .btn-register { background: var(--brand-primary); color: var(--text-inverse); }

        main { padding: 0 15px; max-width: 1200px; margin: 0 auto; }

        .banner-container { width: 100%; margin: 15px 0; }
        .banner-container img { 
            width: 100%; 
            aspect-ratio: 2/1; 
            object-fit: cover; 
            border-radius: 12px; 
            cursor: pointer; 
        }

        .promo-card { 
            background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-surface));
            padding: 25px; 
            border-radius: 15px; 
            text-align: center; 
            border: 1px solid var(--border-brand);
            margin: 20px 0;
        }
        .promo-card h2 { color: var(--brand-primary); margin-bottom: 15px; font-size: 28px; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-bonus { 
            background: var(--brand-accent); 
            color: white; 
            padding: 15px 30px; 
            border-radius: 30px; 
            font-weight: bold; 
            border: none; 
            cursor: pointer; 
            font-size: 18px;
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
        }

        .section-title { font-size: 24px; margin: 30px 0 20px; text-align: center; border-left: 4px solid var(--brand-primary); padding-left: 10px; }

        .game-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
            margin-bottom: 30px; 
        }
        .game-card { 
            background: var(--bg-secondary); 
            border-radius: 12px; 
            overflow: hidden; 
            text-decoration: none; 
            color: inherit; 
            transition: transform 0.2s; 
            border: 1px solid var(--border-default);
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--brand-primary); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { padding: 10px; font-size: 16px; text-align: center; color: var(--text-primary); }

        .intro-card { 
            background: linear-gradient(45deg, #1a1a1a, #262626); 
            padding: 30px; 
            border-radius: 20px; 
            text-align: center; 
            margin: 40px 0; 
            border-bottom: 4px solid var(--brand-primary);
        }
        .intro-card h1 { font-size: 32px; color: var(--brand-primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 17px; }

        .article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-bottom: 40px; }
        .article-card { 
            background: var(--bg-secondary); 
            border-radius: 12px; 
            overflow: hidden; 
            border: 1px solid var(--border-default); 
            text-decoration: none; 
            color: inherit; 
            transition: 0.3s;
        }
        .article-card:hover { background: var(--bg-tertiary); }
        .article-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .article-content { padding: 15px; }
        .article-content h3 { font-size: 18px; color: var(--brand-primary); margin-bottom: 8px; }
        .article-content p { font-size: 14px; color: var(--text-secondary); }

        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(4, 1fr); 
            gap: 10px; 
            margin: 30px 0; 
        }
        .payment-item { 
            background: var(--bg-tertiary); 
            padding: 15px; 
            border-radius: 8px; 
            text-align: center; 
            font-size: 13px; 
            border: 1px solid var(--border-strong);
        }
        .payment-item i { display: block; font-size: 24px; color: var(--brand-primary); margin-bottom: 8px; }

        .guideline-grid { 
            display: grid; 
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); 
            gap: 20px; 
            margin: 30px 0; 
        }
        .guide-item { 
            background: var(--bg-secondary); 
            padding: 20px; 
            border-radius: 10px; 
            border-left: 3px solid var(--brand-primary);
        }
        .guide-item h3 { font-size: 18px; margin-bottom: 10px; color: var(--brand-primary); }
        .guide-item p { font-size: 14px; color: var(--text-secondary); }

        .review-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 40px; }
        .review-card { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: 15px; 
            border: 1px solid var(--border-strong); 
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--brand-secondary); }
        .review-user { font-weight: bold; color: var(--text-primary); }
        .review-stars { color: var(--brand-primary); font-size: 14px; margin: 5px 0; }
        .review-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-tertiary); text-align: right; }

        .winning-list { 
            background: var(--bg-secondary); 
            border-radius: 15px; 
            padding: 15px; 
            margin: 30px 0; 
            border: 1px solid var(--border-default);
        }
        .win-item { 
            display: flex; 
            justify-content: space-between; 
            padding: 12px 0; 
            border-bottom: 1px solid var(--border-default); 
            font-size: 14px;
        }
        .win-item:last-child { border-bottom: none; }
        .win-user { color: var(--text-primary); }
        .win-game { color: var(--text-secondary); }
        .win-amount { color: var(--brand-primary); font-weight: bold; }
        .win-time { color: var(--text-tertiary); font-size: 12px; }

        .provider-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
            margin: 30px 0; 
        }
        .provider-item { 
            background: var(--bg-tertiary); 
            padding: 20px; 
            text-align: center; 
            border-radius: 10px; 
            font-weight: bold; 
            color: var(--brand-primary);
            border: 1px solid var(--border-strong);
        }

        .faq-container { margin: 40px 0; }
        .faq-item { background: var(--bg-secondary); margin-bottom: 15px; border-radius: 10px; overflow: hidden; border: 1px solid var(--border-default); }
        .faq-question { padding: 15px 20px; background: var(--bg-tertiary); color: var(--brand-primary); font-weight: bold; cursor: pointer; }
        .faq-answer { padding: 15px 20px; color: var(--text-secondary); font-size: 15px; line-height: 1.6; }

        .navigator { 
            position: fixed; 
            bottom: 0; 
            left: 0; 
            right: 0; 
            background: var(--bg-secondary); 
            display: flex; 
            justify-content: space-around; 
            padding: 10px 0; 
            border-top: 1px solid var(--border-brand); 
            z-index: 2000;
        }
        .nav-link { 
            text-decoration: none; 
            color: var(--text-secondary); 
            text-align: center; 
            font-size: 12px; 
            display: flex; 
            flex-direction: column; 
            gap: 5px; 
        }
        .nav-link i { font-size: 20px; }

        footer { 
            background: var(--bg-secondary); 
            padding: 40px 20px 100px; 
            border-top: 1px solid var(--border-default); 
            text-align: center;
        }
        .footer-contact { margin-bottom: 30px; }
        .footer-contact a { color: var(--brand-primary); text-decoration: none; margin: 0 10px; font-size: 14px; }
        .footer-links { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            text-align: left; 
            margin-bottom: 30px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .footer-links a { color: var(--text-secondary); text-decoration: none; font-size: 13px; display: block; margin-bottom: 5px; }
        .footer-links a:hover { color: var(--brand-primary); }
        .footer-security { 
            border-top: 1px solid var(--border-default); 
            padding-top: 20px; 
            color: var(--text-tertiary); 
            font-size: 12px; 
        }
        .security-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 10px; font-size: 20px; color: var(--brand-secondary); }

        @media (max-width: 768px) {
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-links { grid-template-columns: repeat(2, 1fr); }
        }