:root {
            --brand-primary: #FFD700;
            --brand-secondary: #C0C0C0;
            --brand-accent: #FF4500;
            --brand-highlight: #FFD700;
            --bg-main: #0B0E11;
            --bg-surface: #1A1D23;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --bg-gradient-start: #1A1D23;
            --bg-gradient-end: #0B0E11;
            --semantic-success: #00C853;
            --semantic-warning: #FFAB00;
            --semantic-error: #FF5252;
            --semantic-info: #2196F3;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B3B8;
            --text-disabled: #6C757D;
            --text-inverse: #000000;
            --border-default: #2D3139;
            --border-strong: #3E444D;
            --border-accent: #FFD700;
            --font-primary: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
            --font-heading: 'Hind Siliguri', 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);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--border-accent);
        }
        header .logo-area { display: flex; align-items: center; gap: 10px; }
        header .logo-area img { width: 25px; height: 25px; border-radius: 50%; }
        header .logo-area strong { font-size: 16px; font-weight: normal; color: var(--brand-primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-auth { 
            padding: 6px 15px; 
            border-radius: 5px; 
            cursor: pointer; 
            font-weight: 600; 
            font-size: 14px; 
            border: none; 
            transition: 0.3s;
        }
        .btn-login { background: var(--border-strong); color: white; }
        .btn-register { background: var(--brand-primary); color: var(--text-inverse); }

        main { max-width: 1000px; margin: 0 auto; padding: 20px 15px; }
        
        .banner-container { 
            width: 100%; 
            aspect-ratio: 2/1; 
            overflow: hidden; 
            border-radius: 15px; 
            margin-bottom: 25px; 
            cursor: pointer;
        }
        .banner-container img { width: 100%; height: 100%; object-fit: cover; }

        .reward-section {
            background: linear-gradient(45deg, var(--brand-accent), #B22222);
            padding: 30px 20px;
            border-radius: 20px;
            text-align: center;
            margin-bottom: 25px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }
        .reward-section h2 { font-size: 24px; margin-bottom: 15px; }
        .reward-section p { font-size: 16px; margin-bottom: 20px; color: #ffebeb; }
        .btn-main-cta { 
            background: var(--brand-primary); 
            color: var(--text-inverse); 
            padding: 15px 40px; 
            font-size: 20px; 
            font-weight: bold; 
            border-radius: 50px; 
            border: none; 
            cursor: pointer; 
            text-transform: uppercase;
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
        }

        .intro-card {
            background: var(--bg-surface);
            padding: 30px;
            border-radius: 20px;
            border: 1px solid var(--border-strong);
            text-align: center;
            margin-bottom: 30px;
        }
        .intro-card h1 { font-size: 32px; color: var(--brand-primary); margin-bottom: 15px; }
        .intro-card p { font-size: 16px; color: var(--text-secondary); }

        .section-title { 
            font-size: 24px; 
            margin-bottom: 20px; 
            padding-left: 10px; 
            border-left: 5px solid var(--brand-primary);
            color: var(--text-primary);
        }

        .game-grid {
            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-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: 12px; 
            text-align: center; 
            font-size: 16px; 
            color: var(--text-primary); 
            white-space: nowrap; 
            overflow: hidden; 
            text-overflow: ellipsis; 
        }

        .payment-section {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 30px;
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
        }
        .payment-item { 
            text-align: center; 
            font-size: 12px; 
            color: var(--text-secondary); 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            gap: 8px;
        }
        .payment-item i { font-size: 24px; color: var(--brand-primary); }

        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .guide-card {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
            border-bottom: 3px solid var(--brand-primary);
        }
        .guide-card h3 { margin-bottom: 10px; color: var(--brand-primary); font-size: 18px; }
        .guide-card 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: 30px;
        }
        .review-card {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
            border: 1px solid var(--border-default);
        }
        .review-header { display: flex; align-items: center; gap: 15px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--brand-secondary); }
        .review-user { font-weight: bold; font-size: 15px; }
        .review-stars { color: var(--brand-primary); font-size: 14px; margin-bottom: 10px; }
        .review-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-disabled); }

        .win-record-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 30px;
            background: var(--bg-surface);
            border-radius: 15px;
            overflow: hidden;
        }
        .win-record-table th, .win-record-table td {
            padding: 12px;
            text-align: left;
            border-bottom: 1px solid var(--border-default);
        }
        .win-record-table th { background: var(--border-strong); color: var(--brand-primary); }
        .win-amount { color: var(--semantic-success); font-weight: bold; }

        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .provider-item {
            background: linear-gradient(135deg, #2D3139, #1A1D23);
            padding: 15px;
            text-align: center;
            border-radius: 10px;
            font-weight: bold;
            color: var(--brand-primary);
            border: 1px solid var(--border-strong);
        }

        .faq-section { margin-bottom: 30px; }
        .faq-item {
            background: var(--bg-surface);
            margin-bottom: 10px;
            border-radius: 10px;
            overflow: hidden;
        }
        .faq-question {
            padding: 15px;
            cursor: pointer;
            font-weight: 600;
            background: var(--border-strong);
            color: var(--text-primary);
            display: block;
        }
        .faq-answer { padding: 15px; color: var(--text-secondary); font-size: 14px; line-height: 1.6; }

        .security-section {
            background: #05070a;
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            border: 1px dashed var(--brand-primary);
            margin-bottom: 30px;
        }
        .security-badge { margin-bottom: 15px; display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
        .badge { color: var(--brand-primary); font-size: 14px; font-weight: bold; }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            padding: 10px 0;
            border-top: 2px solid var(--brand-primary);
            z-index: 2000;
            box-shadow: 0 -5px 15px rgba(0,0,0,0.5);
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 12px;
            gap: 5px;
        }
        .nav-item i { font-size: 20px; }

        footer {
            background: var(--bg-surface);
            padding: 40px 20px 100px 20px;
            border-top: 1px solid var(--border-strong);
            text-align: center;
        }
        .footer-contact { margin-bottom: 30px; display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; align-items: center; }
        .footer-contact a { color: var(--text-secondary); 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-disabled); 
            text-decoration: none; 
            font-size: 13px; 
            display: block; 
            padding: 5px 0;
        }
        .footer-copy { color: var(--text-disabled); font-size: 12px; }

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