:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #0F172A;
            --brand-primary: #FACC15;
            --brand-secondary: #EAB308;
            --brand-accent: #F59E0B;
            --brand-highlight: #C026D3;
            --success: #22C55E;
            --warning: #F59E0B;
            --error: #EF4444;
            --info: #3B82F6;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-inverse: #0F172A;
            --border-light: #334155;
            --border-medium: #475569;
            --border-dark: #1E293B;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Noto Sans Bengali', sans-serif;
            --font-accent: 'Roboto', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        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);
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 15px;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-light);
        }
        header .logo-section { display: flex; align-items: center; gap: 8px; }
        header .logo-section img { width: 25px; height: 25px; border-radius: 4px; }
        header .logo-section strong { font-size: 16px; font-weight: normal; color: var(--brand-primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--brand-primary); padding: 5px 15px; border-radius: 20px; cursor: pointer; font-size: 14px; font-family: var(--font-primary); }
        .btn-register { background: var(--brand-primary); color: var(--text-inverse); border: none; padding: 5px 15px; border-radius: 20px; cursor: pointer; font-size: 14px; font-weight: 600; font-family: var(--font-primary); }
        main { padding-bottom: 80px; }
        .banner-container { width: 100%; max-width: 1000px; margin: 0 auto; cursor: pointer; }
        .banner-container img { width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: 0 0 20px 20px; }
        .reward-section { background: linear-gradient(135deg, var(--brand-highlight), #7e22ce); margin: 20px 15px; padding: 25px; border-radius: 20px; text-align: center; box-shadow: 0 10px 20px rgba(0,0,0,0.3); }
        .reward-section h2 { font-size: 24px; margin-bottom: 15px; color: #fff; }
        .reward-section p { color: #e9d5ff; margin-bottom: 20px; font-size: 16px; }
        .btn-main-reg { background: var(--brand-primary); color: var(--text-inverse); border: none; padding: 15px 30px; border-radius: 30px; font-size: 18px; font-weight: 700; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.2); }
        .intro-card { background: var(--bg-secondary); margin: 20px 15px; padding: 25px; border-radius: 20px; border: 1px solid var(--border-light); text-align: center; }
        .intro-card h1 { font-size: 30px; color: var(--brand-primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; line-height: 1.8; }
        .section-title { font-size: 24px; text-align: center; margin: 30px 0 20px; color: var(--brand-primary); }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; padding: 0 15px; }
        .game-card { background: var(--bg-secondary); border-radius: 15px; overflow: hidden; text-decoration: none; border: 1px solid var(--border-light); transition: transform 0.2s; }
        .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: 15px; text-align: center; color: var(--text-primary); font-weight: 500; }
        .payment-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 0 15px; }
        .payment-item { background: var(--bg-secondary); padding: 15px 5px; border-radius: 12px; text-align: center; border: 1px solid var(--border-light); }
        .payment-item i { display: block; font-size: 20px; color: var(--brand-primary); margin-bottom: 8px; }
        .payment-item span { font-size: 12px; color: var(--text-secondary); }
        .guidelines { padding: 0 15px; display: grid; gap: 15px; }
        .guide-card { background: var(--bg-secondary); padding: 20px; border-radius: 15px; border-left: 4px solid var(--brand-primary); }
        .guide-card h3 { font-size: 18px; margin-bottom: 10px; color: var(--brand-primary); }
        .guide-card p { font-size: 14px; color: var(--text-secondary); }
        .review-grid { display: grid; grid-template-columns: 1fr; gap: 15px; padding: 0 15px; }
        .review-card { background: var(--bg-secondary); padding: 20px; border-radius: 15px; border: 1px solid var(--border-light); }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 24px; color: var(--text-secondary); }
        .review-header .username { font-weight: 600; font-size: 15px; }
        .review-rating { color: var(--brand-primary); font-size: 13px; margin-bottom: 10px; }
        .review-content { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .win-list { padding: 0 15px; }
        .win-item { background: var(--bg-secondary); display: flex; justify-content: space-between; align-items: center; padding: 12px 15px; border-radius: 10px; margin-bottom: 8px; border: 1px solid var(--border-light); }
        .win-user { font-weight: 500; font-size: 14px; }
        .win-game { font-size: 13px; color: var(--text-secondary); }
        .win-amount { color: var(--brand-primary); font-weight: 700; font-size: 15px; }
        .win-time { font-size: 11px; color: var(--text-muted); }
        .provider-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 0 15px; }
        .provider-box { background: linear-gradient(45deg, var(--bg-secondary), var(--border-dark)); padding: 15px; border-radius: 10px; text-align: center; font-weight: 600; border: 1px solid var(--brand-primary); color: var(--brand-primary); }
        .faq-section { padding: 0 15px; display: grid; gap: 15px; }
        .faq-card { background: var(--bg-secondary); padding: 20px; border-radius: 15px; }
        .faq-card h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 10px; }
        .faq-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        .security-section { background: var(--bg-secondary); margin: 20px 15px; padding: 25px; border-radius: 20px; text-align: center; border: 1px dashed var(--border-medium); }
        .security-section .security-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; flex-wrap: wrap; }
        .security-badge { display: flex; flex-direction: column; align-items: center; gap: 5px; font-size: 12px; color: var(--text-secondary); }
        .security-badge i { font-size: 24px; color: var(--success); }
        .security-text { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
        .navigator { position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-secondary); height: 65px; display: flex; justify-content: space-around; align-items: center; border-top: 1px solid var(--border-light); z-index: 1000; }
        .nav-item { text-decoration: none; color: var(--text-secondary); display: flex; flex-direction: column; align-items: center; font-size: 11px; gap: 4px; transition: color 0.2s; }
        .nav-item i { font-size: 20px; }
        .nav-item:active { color: var(--brand-primary); }
        footer { background: var(--bg-secondary); padding: 30px 15px; border-top: 1px solid var(--border-light); color: var(--text-secondary); font-size: 13px; }
        footer .contact-row { display: flex; flex-direction: column; align-items: center; gap: 15px; margin-bottom: 25px; }
        footer .contact-links { display: flex; gap: 15px; flex-wrap: wrap; justify-content: center; }
        footer .contact-links a { color: var(--brand-primary); text-decoration: none; }
        footer .link-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 25px; }
        footer .link-grid a { color: var(--text-secondary); text-decoration: none; font-size: 12px; }
        footer .copyright { text-align: center; color: var(--text-muted); border-top: 1px solid var(--border-light); padding-top: 20px; }