:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #111827;
            --brand-primary: #FFD700;
            --brand-secondary: #FFC107;
            --brand-highlight: #FACC15;
            --brand-accent: #E11D48;
            --success: #22C55E;
            --warning: #F59E0B;
            --error: #EF4444;
            --info: #3B82F6;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-on-brand: #0F172A;
            --border-light: #334155;
            --border-medium: #475569;
            --border-strong: #1E293B;
            --font-primary: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
        body { background-color: var(--bg-primary); color: var(--text-primary); font-family: var(--font-primary); line-height: 1.5; }
        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-area { display: flex; align-items: center; gap: 10px; }
        header .logo-area img { width: 25px; height: 25px; border-radius: 4px; }
        header .logo-area strong { font-size: 16px; font-weight: normal; color: var(--brand-primary); }
        header .auth-btns { display: flex; gap: 10px; }
        .btn { padding: 8px 16px; border-radius: 8px; border: none; cursor: pointer; font-family: var(--font-primary); font-weight: 600; transition: 0.3s; }
        .btn-login { background: transparent; color: var(--brand-primary); border: 1px solid var(--brand-primary); }
        .btn-register { background: var(--brand-primary); color: var(--text-on-brand); }
        main { padding-bottom: 80px; }
        .banner-container { width: 100%; aspect-ratio: 2/1; overflow: hidden; cursor: pointer; }
        .banner-container img { width: 100%; height: 100%; object-fit: cover; }
        .section-container { padding: 20px 15px; }
        .reward-card { background: linear-gradient(135deg, #1E293B, #0F172A); border: 2px solid var(--brand-primary); border-radius: 16px; padding: 25px; text-align: center; margin-bottom: 25px; box-shadow: 0 10px 20px rgba(0,0,0,0.3); }
        .reward-card h2 { color: var(--brand-primary); font-size: 24px; margin-bottom: 15px; }
        .reward-card p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-large { background: var(--brand-accent); color: white; padding: 15px 30px; font-size: 18px; border-radius: 50px; width: 100%; max-width: 300px; }
        .intro-card { background: var(--bg-secondary); border-radius: 16px; padding: 20px; border-left: 5px solid var(--brand-primary); margin-bottom: 25px; }
        .intro-card h1 { font-size: 30px; color: var(--brand-primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 30px; }
        .game-card { background: var(--bg-accent); border-radius: 12px; overflow: hidden; text-decoration: none; border: 1px solid var(--border-medium); transition: transform 0.2s; }
        .game-card:active { transform: scale(0.95); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; }
        .game-card h3 { padding: 10px; font-size: 14px; color: var(--text-primary); text-align: center; }
        .section-title { font-size: 22px; color: var(--brand-primary); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
        .payment-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 30px; }
        .payment-item { background: var(--bg-secondary); border: 1px solid var(--border-light); border-radius: 8px; padding: 15px 5px; text-align: center; font-size: 11px; color: var(--text-secondary); }
        .payment-item i { display: block; font-size: 20px; color: var(--brand-primary); margin-bottom: 8px; }
        .guide-grid { display: grid; gap: 15px; margin-bottom: 30px; }
        .guide-item { background: var(--bg-secondary); padding: 15px; border-radius: 12px; border: 1px solid var(--border-light); }
        .guide-item h3 { color: var(--brand-highlight); font-size: 16px; margin-bottom: 8px; }
        .guide-item p { font-size: 14px; color: var(--text-secondary); }
        .comment-grid { display: grid; gap: 15px; margin-bottom: 30px; }
        .comment-card { background: var(--bg-secondary); padding: 15px; border-radius: 12px; border: 1px solid var(--border-light); }
        .comment-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .comment-header i { font-size: 24px; color: var(--brand-primary); }
        .comment-header .user { font-weight: 600; font-size: 14px; }
        .comment-stars { color: var(--brand-highlight); font-size: 12px; margin-bottom: 10px; }
        .comment-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .comment-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .lottery-list { background: var(--bg-secondary); border-radius: 16px; overflow: hidden; margin-bottom: 30px; }
        .lottery-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 15px; border-bottom: 1px solid var(--border-light); font-size: 13px; }
        .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: bold; }
        .provider-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 30px; }
        .provider-box { background: linear-gradient(45deg, var(--bg-secondary), var(--bg-accent)); padding: 15px; text-align: center; border-radius: 8px; font-weight: 600; color: var(--brand-highlight); border: 1px solid var(--border-medium); }
        .faq-container { display: grid; gap: 15px; margin-bottom: 30px; }
        .faq-item { background: var(--bg-secondary); border-radius: 12px; padding: 15px; border: 1px solid var(--border-light); }
        .faq-item h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 8px; }
        .faq-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        .security-section { background: var(--bg-accent); padding: 20px; border-radius: 16px; text-align: center; border: 1px solid var(--border-medium); margin-bottom: 30px; }
        .security-badge { display: inline-flex; align-items: center; gap: 8px; color: var(--success); font-weight: 600; margin-bottom: 15px; font-size: 14px; }
        .security-notice { font-size: 13px; color: var(--text-muted); line-height: 1.8; }
        .navigator { position: fixed; bottom: 0; left: 0; right: 0; height: 65px; background: var(--bg-secondary); display: flex; justify-content: space-around; align-items: center; z-index: 2000; border-top: 2px solid var(--brand-primary); box-shadow: 0 -5px 15px rgba(0,0,0,0.5); }
        .nav-item { display: flex; flex-direction: column; align-items: center; text-decoration: none; color: var(--text-secondary); font-size: 12px; gap: 4px; }
        .nav-item i { font-size: 20px; color: var(--text-primary); }
        footer { background-color: var(--bg-accent); padding: 30px 15px; border-top: 1px solid var(--border-light); color: var(--text-secondary); font-family: var(--font-secondary); }
        .footer-contact { display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; margin-bottom: 25px; font-size: 14px; }
        .footer-contact a { color: var(--brand-primary); text-decoration: none; }
        .footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 25px; }
        .footer-links a { color: var(--text-muted); text-decoration: none; font-size: 12px; }
        .copyright { text-align: center; font-size: 12px; color: var(--text-muted); border-top: 1px solid var(--border-light); padding-top: 20px; }