:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --dark-accent: #8B0000;
            --bg-main: #0F0F0F;
            --bg-surface: #1A1A1A;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --grad-start: #1a1a2e;
            --grad-end: #16213e;
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #757575;
            --text-highlight: #FFD700;
            --success: #00C853;
            --warning: #FFAB00;
            --error: #D50000;
            --info: #2979FF;
            --border-light: #333333;
            --border-medium: #4D4D4D;
            --border-strong: #FFD700;
            --font-primary: 'Hind Siliguri', Arial, sans-serif;
            --font-secondary: 'Noto Sans Bengali', 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: var(--bg-surface);
            border-bottom: 1px solid var(--border-light);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .logo-area { display: flex; align-items: center; gap: 10px; }
        .logo-img { width: 25px; height: 25px; }
        .logo-name { font-size: 16px; font-weight: normal; }

        .auth-buttons { display: flex; gap: 10px; }
        .btn { 
            padding: 8px 16px; 
            border-radius: 8px; 
            cursor: pointer; 
            border: none; 
            font-weight: 600; 
            transition: 0.3s;
        }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--border-medium); }
        .btn-register { background: var(--primary); color: #000; }

        .main-banner { 
            width: 100%; 
            aspect-ratio: 2/1; 
            cursor: pointer; 
            object-fit: cover; 
            display: block;
        }

        .section-container { 
            max-width: 1200px; 
            margin: 0 auto; 
            padding: 20px; 
        }

        .reward-card {
            background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
            padding: 30px;
            border-radius: 20px;
            text-align: center;
            margin: 20px 0;
            border: 1px solid var(--border-medium);
        }
        .reward-card h2 { color: var(--primary); margin-bottom: 15px; }
        .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; 
            text-decoration: none; 
            display: inline-block; 
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
        }

        .intro-card {
            background: var(--bg-surface);
            padding: 25px;
            border-radius: 20px;
            border-left: 5px solid var(--primary);
            margin: 20px 0;
        }
        .intro-card h1 { font-size: 32px; color: var(--primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 18px; }

        .grid-2 { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
            margin-bottom: 30px;
        }
        .game-card { 
            background: var(--bg-surface); 
            border-radius: 15px; 
            overflow: hidden; 
            text-decoration: none; 
            transition: transform 0.2s;
            border: 1px solid var(--border-light);
        }
        .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; text-align: center; font-size: 16px; color: var(--text-primary); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            gap: 15px;
            margin: 30px 0;
        }
        .payment-item {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
        }
        .payment-item i { display: block; font-size: 24px; color: var(--primary); margin-bottom: 10px; }

        .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: 15px;
            overflow: hidden;
            text-decoration: none;
            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 { color: var(--primary); font-size: 18px; margin-bottom: 10px; }
        .article-content p { color: var(--text-secondary); font-size: 14px; }

        .guideline-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
            border: 1px solid var(--border-light);
        }
        .guide-item h3 { color: var(--primary); margin-bottom: 10px; }
        .guide-item p { color: var(--text-secondary); font-size: 14px; }

        .review-card {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
            margin-bottom: 15px;
            border: 1px solid var(--border-light);
        }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .avatar { font-size: 24px; color: var(--primary); }
        .user-name { font-weight: bold; }
        .stars { color: var(--primary); margin-left: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); margin-left: auto; }

        .win-record {
            background: var(--bg-surface);
            display: flex;
            justify-content: space-between;
            padding: 12px 20px;
            border-radius: 10px;
            margin-bottom: 10px;
            border: 1px solid var(--border-light);
            font-size: 14px;
        }
        .win-amount { color: var(--primary); font-weight: bold; }

        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin: 30px 0;
        }
        .provider-item {
            background: linear-gradient(45deg, #222, #333);
            padding: 15px;
            text-align: center;
            border-radius: 10px;
            border: 1px solid var(--primary);
            color: var(--primary);
            font-weight: bold;
        }

        .faq-section { margin: 40px 0; }
        .faq-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 12px;
            margin-bottom: 15px;
            border: 1px solid var(--border-light);
        }
        .faq-item h3 { color: var(--primary); font-size: 18px; margin-bottom: 10px; }
        .faq-item p { color: var(--text-secondary); line-height: 1.6; }

        .security-box {
            background: #111;
            padding: 30px;
            border-radius: 20px;
            text-align: center;
            border: 2px solid var(--dark-accent);
            margin: 40px 0;
        }
        .security-icons { 
            display: flex; 
            justify-content: center; 
            gap: 20px; 
            margin-bottom: 20px; 
            flex-wrap: wrap;
        }
        .security-icons i { font-size: 40px; color: var(--primary); }

        .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(--primary);
            z-index: 1001;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            text-align: center;
            font-size: 12px;
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .nav-item i { font-size: 20px; color: var(--text-primary); }

        footer {
            background: #050505;
            padding: 40px 20px 100px;
            border-top: 1px solid var(--border-light);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            transition: 0.3s;
        }
        .footer-links a:hover { color: var(--primary); }
        .copyright {
            text-align: center;
            color: var(--text-muted);
            font-size: 14px;
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
        }

        @media (max-width: 768px) {
            .grid-2 { grid-template-columns: repeat(2, 1fr); }
            .footer-links { grid-template-columns: repeat(3, 1fr); }
        }