:root {
            --brand-primary: #FFD700;
            --brand-primary-hover: #FFC107;
            --brand-secondary: #1A1A1A;
            --brand-accent: #E91E63;
            --bg-main: #0F0F0F;
            --bg-surface: #1C1C1C;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --bg-input: #2A2A2A;
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #666666;
            --text-on-brand: #000000;
            --semantic-success: #4CAF50;
            --semantic-warning: #FF9800;
            --semantic-error: #F44336;
            --semantic-info: #2196F3;
            --border-light: #333333;
            --border-medium: #444444;
            --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-main); color: var(--text-primary); font-family: var(--font-primary); line-height: 1.5; overflow-x: hidden; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
        ul { list-style: none; }

        header {
            background-color: var(--bg-surface);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-light);
        }
        header .logo-area { display: flex; align-items: center; gap: 10px; }
        header .logo-area img { width: 25px; height: 25px; border-radius: 4px; }
        header .logo-area strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-login { background: transparent; border: 1px solid var(--brand-primary); color: var(--brand-primary); padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-primary); }
        .btn-register { background: var(--brand-primary); border: none; color: var(--text-on-brand); padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-primary); font-weight: 600; }

        main { max-width: 1200px; margin: 0 auto; padding: 0 15px; }
        .banner-container { width: 100%; margin: 15px 0; cursor: pointer; }
        .banner-container img { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: 12px; }

        .promo-card {
            background: linear-gradient(135deg, var(--brand-secondary), #333);
            padding: 30px;
            border-radius: 15px;
            text-align: center;
            border: 2px solid var(--brand-primary);
            margin-bottom: 30px;
        }
        .promo-card h2 { font-size: 28px; color: var(--brand-primary); margin-bottom: 15px; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 20px; font-size: 18px; }
        .btn-bonus { background: var(--brand-primary); color: var(--text-on-brand); padding: 15px 30px; font-size: 20px; font-weight: bold; border-radius: 50px; border: none; cursor: pointer; }

        .section-title { font-size: 24px; color: var(--brand-primary); 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-surface); border-radius: 12px; overflow: hidden; border: 1px solid var(--border-light); transition: transform 0.3s; }
        .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: var(--bg-surface);
            padding: 30px;
            border-radius: 20px;
            text-align: center;
            border: 1px solid var(--border-medium);
            margin: 40px 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .intro-card h1 { font-size: 32px; color: var(--brand-primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 18px; line-height: 1.8; }

        .article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; margin-bottom: 40px; }
        .article-card { background: var(--bg-surface); border-radius: 12px; overflow: hidden; border: 1px solid var(--border-light); }
        .article-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .article-content { padding: 15px; }
        .article-content h3 { font-size: 18px; margin-bottom: 10px; color: var(--brand-primary); }
        .article-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(4, 1fr); 
            gap: 10px; 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: 15px; 
            text-align: center;
            margin-bottom: 40px;
        }
        .payment-item { display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--text-secondary); font-size: 13px; }
        .payment-item i { font-size: 24px; color: var(--brand-primary); }

        .guideline-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; margin-bottom: 40px; }
        .guideline-item { background: var(--bg-surface); padding: 20px; border-radius: 12px; border-left: 4px solid var(--brand-primary); }
        .guideline-item h3 { font-size: 18px; margin-bottom: 10px; color: var(--text-primary); }
        .guideline-item p { font-size: 14px; color: var(--text-secondary); }

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

        .winning-list { background: var(--bg-surface); border-radius: 15px; overflow: hidden; margin-bottom: 40px; }
        .winning-item { 
            display: grid; 
            grid-template-columns: 1fr 1fr 1fr 1fr; 
            padding: 12px; 
            border-bottom: 1px solid var(--border-light); 
            font-size: 14px; 
            text-align: center;
            align-items: center;
        }
        .winning-item:nth-child(even) { background: #222; }
        .winning-amount { color: var(--brand-primary); font-weight: bold; }

        .provider-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 40px; }
        .provider-item { background: var(--bg-surface); padding: 15px; text-align: center; border-radius: 8px; border: 1px solid var(--border-medium); font-weight: bold; color: var(--text-primary); }

        .faq-section { display: grid; gap: 15px; margin-bottom: 40px; }
        .faq-item { background: var(--bg-surface); padding: 20px; border-radius: 12px; border: 1px solid var(--border-light); }
        .faq-item h3 { font-size: 18px; color: var(--brand-primary); margin-bottom: 10px; }
        .faq-item p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            padding: 10px 0;
            border-top: 1px solid var(--border-light);
            z-index: 2000;
        }
        .nav-item { display: flex; flex-direction: column; align-items: center; gap: 5px; font-size: 12px; color: var(--text-secondary); }
        .nav-item i { font-size: 20px; }

        footer {
            background: var(--bg-surface);
            padding: 40px 20px 100px;
            border-top: 2px solid var(--border-light);
            text-align: center;
        }
        footer .contact-area { margin-bottom: 30px; }
        footer .contact-links { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-top: 10px; }
        footer .contact-links a { color: var(--text-secondary); font-size: 14px; }
        
        .footer-links-grid { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 15px; 
            text-align: left; 
            max-width: 800px; 
            margin: 0 auto 40px; 
        }
        .footer-links-grid a { font-size: 14px; color: var(--text-secondary); }

        .security-section {
            background: #111;
            padding: 20px;
            border-radius: 15px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 15px;
        }
        .security-seals { display: flex; gap: 20px; font-size: 24px; color: var(--brand-primary); }
        .security-text { font-size: 13px; color: var(--text-muted); }

        @media (max-width: 768px) {
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-links-grid { grid-template-columns: repeat(2, 1fr); }
            .winning-item { grid-template-columns: 1fr 1fr; gap: 10px; }
            .winning-item :last-child { grid-column: span 2; text-align: center; font-size: 12px; }
        }