:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-surface: #334155;
            --brand-primary: #FACC15;
            --brand-secondary: #EAB308;
            --brand-accent: #EF4444;
            --text-main: #F8FAFC;
            --text-muted: #94A3B8;
            --text-inverse: #0F172A;
            --success: #22C55E;
            --warning: #F59E0B;
            --error: #DC2626;
            --info: #3B82F6;
            --border-light: #475569;
            --border-dark: #1E293B;
            --border-highlight: #FACC15;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-main);
            font-family: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-secondary);
            padding: 12px 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-light);
        }
        .header-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--text-main); }
        .logo-img { width: 25px; height: 25px; border-radius: 4px; }
        .auth-buttons { display: flex; gap: 10px; }
        .btn-login { background: transparent; border: 1px solid var(--brand-primary); color: var(--brand-primary); padding: 6px 14px; border-radius: 8px; cursor: pointer; font-weight: 500; }
        .btn-register { background: var(--brand-primary); border: none; color: var(--text-inverse); padding: 6px 14px; border-radius: 8px; cursor: pointer; font-weight: 600; }
        
        main { padding-bottom: 80px; }
        .banner-container { width: 100%; aspect-ratio: 2/1; cursor: pointer; overflow: hidden; }
        .banner-container img { width: 100%; height: 100%; object-fit: cover; }

        .reward-section {
            background: linear-gradient(135deg, var(--bg-surface), var(--bg-secondary));
            margin: 20px 15px;
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            border: 2px solid var(--brand-primary);
        }
        .reward-section h2 { color: var(--brand-primary); margin-bottom: 10px; font-size: 24px; }
        .reward-section p { color: var(--text-muted); margin-bottom: 20px; font-size: 16px; }
        .btn-cta { background: var(--brand-primary); color: var(--text-inverse); padding: 15px 30px; border-radius: 12px; text-decoration: none; font-weight: bold; font-size: 18px; display: inline-block; border: none; cursor: pointer; box-shadow: 0 4px 15px rgba(250, 204, 21, 0.4); }

        .intro-card {
            background: var(--bg-secondary);
            margin: 20px 15px;
            padding: 20px;
            border-radius: 16px;
            border-left: 5px solid var(--brand-primary);
        }
        .intro-card h1 { font-size: 28px; color: var(--brand-primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-main); font-size: 16px; }

        .section-title { padding: 0 15px; margin: 30px 0 15px; font-size: 22px; color: var(--text-main); 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-surface);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            color: var(--text-main);
            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; font-weight: 500; }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            padding: 0 15px;
        }
        .payment-item {
            background: var(--bg-surface);
            padding: 15px 5px;
            border-radius: 10px;
            text-align: center;
            font-size: 12px;
            border: 1px solid var(--border-dark);
        }
        .payment-item i { display: block; font-size: 20px; margin-bottom: 5px; color: var(--brand-primary); }

        .article-list { padding: 0 15px; display: flex; flex-direction: column; gap: 15px; }
        .article-card {
            display: flex;
            background: var(--bg-secondary);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            color: var(--text-main);
            border: 1px solid var(--border-light);
        }
        .article-card img { width: 100px; height: 100px; object-fit: cover; }
        .article-content { padding: 10px; flex: 1; }
        .article-content h3 { font-size: 15px; margin-bottom: 5px; color: var(--brand-primary); }
        .article-content p { font-size: 13px; color: var(--text-muted); line-height: 1.4; }

        .guidelines-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 15px;
            padding: 0 15px;
        }
        .guide-card {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
            border-bottom: 3px solid var(--brand-primary);
        }
        .guide-card h3 { font-size: 17px; margin-bottom: 8px; color: var(--brand-primary); }
        .guide-card p { font-size: 14px; color: var(--text-muted); }

        .reviews-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            padding: 0 15px;
        }
        .review-card {
            background: var(--bg-secondary);
            padding: 15px;
            border-radius: 15px;
            border: 1px solid var(--border-light);
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-avatar { font-size: 24px; color: var(--brand-primary); }
        .review-user { font-weight: 600; font-size: 15px; }
        .review-stars { color: var(--brand-primary); font-size: 12px; }
        .review-text { font-size: 14px; color: var(--text-muted); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); display: block; text-align: right; }

        .lottery-list {
            padding: 0 15px;
            background: var(--bg-secondary);
            border-radius: 15px;
            margin: 0 15px;
        }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
        }
        .lottery-item:last-child { border-bottom: none; }
        .win-amount { color: var(--brand-primary); font-weight: bold; }

        .providers-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            padding: 0 15px;
        }
        .provider-box {
            background: linear-gradient(45deg, var(--bg-surface), var(--bg-secondary));
            padding: 15px;
            border-radius: 10px;
            text-align: center;
            font-weight: bold;
            color: var(--brand-primary);
            border: 1px solid var(--brand-primary);
        }

        .faq-section { padding: 0 15px; display: flex; flex-direction: column; gap: 10px; }
        .faq-item { background: var(--bg-secondary); padding: 15px; border-radius: 12px; 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-muted); }

        .security-section {
            margin: 20px 15px;
            padding: 20px;
            background: var(--bg-secondary);
            border-radius: 15px;
            text-align: center;
            border: 1px dashed var(--border-light);
        }
        .security-badge {
            display: inline-block;
            margin: 5px;
            padding: 8px 12px;
            background: var(--bg-surface);
            border-radius: 6px;
            font-size: 12px;
            color: var(--text-main);
        }
        .age-notice { color: var(--brand-accent); font-weight: bold; margin: 10px 0; display: block; }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            display: flex;
            justify-content: space-around;
            padding: 10px 0;
            border-top: 2px solid var(--brand-primary);
            z-index: 2000;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-muted);
            text-align: center;
            font-size: 12px;
            flex: 1;
        }
        .nav-item i { display: block; font-size: 20px; margin-bottom: 4px; }
        .nav-item:hover { color: var(--brand-primary); }

        footer {
            background: var(--bg-secondary);
            padding: 40px 15px 100px;
            border-top: 1px solid var(--border-light);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            display: block;
            margin-bottom: 8px;
        }
        .footer-copy {
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
        }