:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #0F172A;
            --brand-primary: #FFD700;
            --brand-secondary: #EAB308;
            --brand-highlight: #FACC15;
            --success: #22C55E;
            --error: #EF4444;
            --warning: #F59E0B;
            --info: #3B82F6;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-inverse: #0F172A;
            --border-primary: #334155;
            --border-secondary: #1E293B;
            --border-highlight: #FFD700;
            --font-primary: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { 
            background-color: var(--bg-primary); 
            color: var(--text-primary); 
            font-family: var(--font-primary); 
            line-height: 1.5; 
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-secondary);
            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-primary);
        }
        header .logo-area { display: flex; align-items: center; gap: 8px; }
        header .logo-area img { width: 25px; height: 25px; object-fit: contain; }
        header .logo-area strong { font-size: 16px; font-weight: 400; color: var(--text-primary); }
        header .auth-btns { display: flex; gap: 10px; }
        .btn-login { background: transparent; border: 1px solid var(--brand-primary); color: var(--brand-primary); padding: 6px 15px; border-radius: 6px; cursor: pointer; font-family: var(--font-primary); font-size: 14px; transition: 0.3s; }
        .btn-register { background: var(--brand-primary); border: none; color: var(--text-inverse); padding: 6px 15px; border-radius: 6px; cursor: pointer; font-family: var(--font-primary); font-size: 14px; font-weight: 600; transition: 0.3s; }
        .btn-login:hover, .btn-register:hover { opacity: 0.8; transform: translateY(-1px); }
        
        main { max-width: 1200px; margin: 0 auto; padding: 20px 15px 100px; }
        .main-banner { width: 100%; aspect-ratio: 2/1; border-radius: 15px; overflow: hidden; cursor: pointer; margin-bottom: 25px; border: 2px solid var(--border-primary); }
        .main-banner img { width: 100%; height: 100%; object-fit: cover; }
        
        .reward-section { background: linear-gradient(135deg, var(--bg-secondary), #2D3748); padding: 30px; border-radius: 20px; text-align: center; border: 1px solid var(--brand-secondary); margin-bottom: 30px; }
        .reward-section h2 { font-size: 28px; color: var(--brand-primary); margin-bottom: 15px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 18px; }
        .btn-big-reg { background: var(--brand-highlight); color: var(--text-inverse); padding: 15px 40px; font-size: 20px; font-weight: 700; border: none; border-radius: 50px; cursor: pointer; box-shadow: 0 4px 15px rgba(250, 204, 21, 0.4); transition: 0.3s; }
        .btn-big-reg:hover { transform: scale(1.05); background: var(--brand-primary); }
        
        .intro-card { background: var(--bg-secondary); padding: 30px; border-radius: 20px; border-left: 5px solid var(--brand-primary); margin-bottom: 30px; box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
        .intro-card h1 { font-size: 32px; color: var(--brand-primary); margin-bottom: 15px; }
        .intro-card p { font-size: 16px; color: var(--text-secondary); line-height: 1.8; }
        
        .section-title { font-size: 24px; color: var(--text-primary); margin: 40px 0 20px; text-align: center; position: relative; padding-bottom: 10px; }
        .section-title::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 60px; height: 3px; background: var(--brand-primary); }
        
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 30px; }
        .game-card { background: var(--bg-secondary); border-radius: 15px; overflow: hidden; text-decoration: none; transition: 0.3s; border: 1px solid var(--border-primary); }
        .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 { color: var(--text-primary); font-size: 16px; padding: 12px; text-align: center; font-weight: 500; }
        
        .payment-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 15px; text-align: center; }
        .payment-item { background: var(--bg-secondary); padding: 15px; border-radius: 12px; border: 1px solid var(--border-primary); color: var(--text-secondary); display: flex; flex-direction: column; align-items: center; gap: 10px; font-size: 14px; }
        .payment-item i { font-size: 24px; color: var(--brand-primary); }
        
        .guidelines-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 40px; }
        .guide-card { background: var(--bg-secondary); padding: 20px; border-radius: 15px; border: 1px solid var(--border-primary); }
        .guide-card h3 { color: var(--brand-primary); margin-bottom: 10px; font-size: 18px; }
        .guide-card p { color: var(--text-secondary); font-size: 14px; }
        
        .reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
        .review-card { background: var(--bg-secondary); padding: 20px; border-radius: 15px; border: 1px solid var(--border-primary); }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--brand-primary); }
        .review-header .u-name { font-weight: 600; font-size: 16px; }
        .stars { color: var(--brand-highlight); font-size: 12px; margin-bottom: 10px; }
        .review-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
        .review-date { color: var(--text-muted); font-size: 12px; display: block; }
        
        .lottery-list { background: var(--bg-secondary); border-radius: 15px; overflow: hidden; border: 1px solid var(--border-primary); }
        .lottery-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; border-bottom: 1px solid var(--border-primary); font-size: 14px; }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-user { color: var(--text-primary); }
        .lottery-game { color: var(--text-secondary); }
        .lottery-win { color: var(--brand-primary); font-weight: 700; }
        .lottery-time { color: var(--text-muted); font-size: 12px; }
        
        .provider-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .provider-item { background: var(--bg-secondary); padding: 15px; text-align: center; border-radius: 10px; border: 1px solid var(--border-primary); font-weight: 600; color: var(--brand-highlight); }
        
        .faq-section { margin-bottom: 40px; }
        .faq-item { background: var(--bg-secondary); margin-bottom: 15px; border-radius: 12px; border: 1px solid var(--border-primary); overflow: hidden; }
        .faq-question { padding: 15px 20px; background: #253145; color: var(--brand-primary); font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
        .faq-answer { padding: 15px 20px; color: var(--text-secondary); font-size: 14px; line-height: 1.6; }
        
        .security-box { background: #1e293b; padding: 30px; border-radius: 20px; text-align: center; border: 1px dashed var(--border-primary); }
        .security-icons { display: flex; justify-content: center; gap: 30px; margin-bottom: 20px; flex-wrap: wrap; }
        .security-icon { display: flex; flex-direction: column; align-items: center; gap: 10px; color: var(--text-secondary); font-size: 13px; }
        .security-icon i { font-size: 30px; color: var(--success); }
        .security-notice { font-size: 14px; color: var(--text-muted); max-width: 700px; margin: 0 auto; }
        .security-notice a { color: var(--brand-primary); text-decoration: none; }

        .navigator { 
            position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-secondary); 
            display: flex; justify-content: space-around; align-items: center; 
            padding: 10px 0; border-top: 2px solid var(--brand-primary); z-index: 1001;
        }
        .nav-link { display: flex; flex-direction: column; align-items: center; text-decoration: none; color: var(--text-secondary); font-size: 12px; gap: 4px; }
        .nav-link i { font-size: 20px; }
        .nav-link:hover { color: var(--brand-primary); }

        footer { 
            background: var(--bg-secondary); padding: 40px 20px; 
            border-top: 1px solid var(--border-primary); text-align: center;
            color: var(--text-secondary); font-family: var(--font-secondary);
        }
        footer .contact-row { display: flex; justify-content: center; align-items: center; gap: 15px; flex-wrap: wrap; margin-bottom: 30px; font-size: 14px; }
        footer .contact-row a { color: var(--brand-primary); text-decoration: none; }
        footer .link-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; text-align: left; max-width: 800px; margin: 0 auto 30px; }
        footer .link-columns a { color: var(--text-secondary); text-decoration: none; font-size: 13px; display: block; margin-bottom: 8px; transition: 0.2s; }
        footer .link-columns a:hover { color: var(--text-primary); padding-left: 5px; }
        footer .copyright { font-size: 13px; color: var(--text-muted); border-top: 1px solid var(--border-primary); padding-top: 20px; }

        @media (max-width: 768px) {
            .link-columns { grid-template-columns: repeat(2, 1fr); }
            .reward-section h2 { font-size: 22px; }
        }