:root {
            --brand-primary: #FFD700;
            --brand-secondary: #C0C0C0;
            --brand-accent: #FF4500;
            --brand-dark: #B8860B;
            --bg-main: #0F0F0F;
            --bg-surface: #1A1A1A;
            --bg-elevated: #2C2C2C;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0B0;
            --text-muted: #757575;
            --text-inverse: #000000;
            --border-light: #333333;
            --border-medium: #444444;
            --border-strong: #FFD700;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-main);
            color: var(--text-primary);
            font-family: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-surface);
            border-bottom: 2px solid var(--border-strong);
            padding: 10px 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: inherit; }
        .header-logo img { width: 25px; height: 25px; object-fit: cover; border-radius: 50%; }
        .header-logo strong { font-size: 16px; font-weight: normal; }
        .header-actions { display: flex; gap: 10px; }
        .btn-login { 
            background: transparent; border: 1px solid var(--brand-primary); color: var(--brand-primary); 
            padding: 6px 15px; border-radius: 20px; cursor: pointer; font-weight: 500; 
        }
        .btn-reg { 
            background: var(--brand-primary); border: none; color: var(--text-inverse); 
            padding: 6px 15px; border-radius: 20px; cursor: pointer; font-weight: 600; 
        }
        main { padding: 0 0 80px 0; max-width: 600px; margin: 0 auto; }
        .banner-wrap { width: 100%; cursor: pointer; }
        .banner-wrap img { 
            width: 100%; aspect-ratio: 2/1; object-fit: cover; display: block; 
        }
        .reward-section { 
            background: linear-gradient(45deg, #B8860B, #FFD700); 
            margin: 15px; padding: 20px; border-radius: 15px; text-align: center; color: var(--text-inverse);
        }
        .reward-section h2 { font-size: 24px; margin-bottom: 10px; }
        .reward-section p { font-size: 14px; margin-bottom: 15px; font-weight: 500; }
        .btn-large { 
            background: var(--text-inverse); color: var(--brand-primary); 
            padding: 12px 30px; border-radius: 30px; border: none; 
            font-weight: bold; font-size: 18px; cursor: pointer; width: 100%;
        }
        .intro-card { 
            background: var(--bg-surface); margin: 15px; padding: 25px; 
            border-radius: 20px; border: 1px solid var(--border-medium); 
            text-align: center; box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }
        .intro-card h1 { color: var(--brand-primary); font-size: 32px; margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title { 
            padding: 0 15px; margin: 30px 0 15px; color: var(--brand-primary); 
            font-size: 22px; border-left: 4px solid var(--brand-primary); padding-left: 10px;
        }
        .game-grid { 
            display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; padding: 0 15px; 
        }
        .game-card { 
            background: var(--bg-elevated); border-radius: 12px; overflow: hidden; 
            text-decoration: none; color: inherit; transition: transform 0.2s;
            border: 1px solid var(--border-light);
        }
        .game-card:active { transform: scale(0.95); }
        .game-card img { 
            width: 100%; aspect-ratio: 1/1; object-fit: cover; 
        }
        .game-card h3 { 
            padding: 10px; font-size: 14px; text-align: center; color: var(--text-primary); 
        }
        .payment-grid { 
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 0 15px; 
        }
        .payment-item { 
            background: var(--bg-surface); padding: 10px; text-align: center; 
            border-radius: 8px; border: 1px solid var(--border-medium); font-size: 11px;
        }
        .payment-item i { display: block; color: var(--brand-primary); font-size: 18px; margin-bottom: 5px; }
        .guideline-grid { padding: 0 15px; display: grid; gap: 15px; }
        .guideline-item { 
            background: var(--bg-surface); padding: 15px; border-radius: 12px; 
            border-left: 3px solid var(--brand-primary);
        }
        .guideline-item h3 { font-size: 16px; margin-bottom: 8px; color: var(--brand-primary); }
        .guideline-item p { font-size: 13px; color: var(--text-secondary); }
        .review-grid { padding: 0 15px; display: grid; gap: 15px; }
        .review-card { 
            background: var(--bg-surface); padding: 15px; border-radius: 15px; 
            border: 1px solid var(--border-medium); 
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 24px; color: var(--brand-secondary); }
        .review-user { font-weight: 600; font-size: 14px; }
        .review-stars { color: var(--brand-primary); font-size: 12px; margin-left: auto; }
        .review-text { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
        .review-date { font-size: 11px; color: var(--text-muted); }
        .lottery-grid { 
            padding: 0 15px; display: grid; gap: 8px; 
        }
        .lottery-item { 
            background: var(--bg-elevated); padding: 10px 15px; border-radius: 8px; 
            display: flex; justify-content: space-between; align-items: center; 
            font-size: 13px; border: 1px solid var(--border-light);
        }
        .win-amount { color: var(--brand-primary); font-weight: bold; }
        .provider-wall { 
            display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 0 15px; 
        }
        .provider-block { 
            background: var(--bg-surface); padding: 15px; text-align: center; 
            border-radius: 10px; font-weight: bold; color: var(--brand-primary); 
            border: 1px dashed var(--brand-primary);
        }
        .faq-section { padding: 0 15px; display: grid; gap: 10px; }
        .faq-item { background: var(--bg-surface); border-radius: 10px; overflow: hidden; }
        .faq-question { 
            padding: 15px; font-weight: 600; font-size: 14px; cursor: pointer; 
            background: var(--bg-elevated); border-bottom: 1px solid var(--border-light);
        }
        .faq-answer { padding: 15px; font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
        .security-section { 
            margin: 20px 15px; padding: 20px; background: var(--bg-surface); 
            border-radius: 15px; text-align: center; border: 1px solid var(--border-medium);
        }
        .security-badges { display: flex; justify-content: center; gap: 20px; margin-bottom: 15px; }
        .security-badges i { font-size: 30px; color: var(--brand-primary); }
        .security-notice { font-size: 12px; color: var(--text-muted); }
        .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-medium); z-index: 2000;
        }
        .nav-item { 
            text-decoration: none; color: var(--text-secondary); text-align: center; 
            font-size: 11px; display: flex; flex-direction: column; gap: 4px;
        }
        .nav-item i { font-size: 20px; color: var(--brand-primary); }
        footer { 
            background: var(--bg-surface); padding: 30px 15px; 
            border-top: 1px solid var(--border-medium); text-align: center; 
        }
        .footer-contact { display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; margin-bottom: 20px; }
        .footer-contact a { color: var(--text-secondary); text-decoration: none; font-size: 13px; }
        .footer-links { 
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; 
            margin-bottom: 20px; text-align: left; 
        }
        .footer-links a { color: var(--text-muted); text-decoration: none; font-size: 12px; }
        .copyright { font-size: 12px; color: var(--text-muted); margin-top: 20px; }