:root {
            --bg-primary: #0f172a;
            --bg-secondary: #1e293b;
            --bg-accent: #0f172a;
            --brand-primary: #fbbf24;
            --brand-secondary: #f59e0b;
            --brand-accent: #d97706;
            --brand-highlight: #ef4444;
            --success: #22c55e;
            --warning: #facc15;
            --error: #ef4444;
            --info: #3b82f6;
            --text-primary: #ffffff;
            --text-secondary: #cbd5e1;
            --text-muted: #94a3b8;
            --text-inverse: #0f172a;
            --border-light: #334155;
            --border-medium: #475569;
            --border-dark: #1e293b;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            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-secondary);
            padding: 12px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-light);
        }
        .logo-area { display: flex; align-items: center; gap: 10px; }
        .logo-area img { width: 25px; height: 25px; border-radius: 50%; }
        .logo-area strong { font-size: 16px; font-weight: normal; color: var(--brand-primary); }
        .auth-buttons { display: flex; gap: 10px; }
        .btn-auth {
            padding: 6px 15px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            font-weight: 600;
            font-family: inherit;
            transition: 0.3s;
        }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--brand-primary); }
        .btn-register { background: var(--brand-primary); color: var(--text-inverse); }
        .btn-register:hover { background: var(--brand-secondary); }

        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; }

        .reward-section {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
            padding: 30px 20px;
            text-align: center;
            border-bottom: 2px solid var(--brand-primary);
        }
        .reward-section h2 { color: var(--brand-primary); font-size: 24px; margin-bottom: 15px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-main-cta {
            background: var(--brand-highlight);
            color: white;
            padding: 15px 40px;
            border-radius: 50px;
            font-size: 20px;
            font-weight: bold;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
        }

        .intro-card {
            margin: 20px;
            background: var(--bg-secondary);
            padding: 25px;
            border-radius: 15px;
            border: 1px solid var(--border-light);
            text-align: center;
        }
        .intro-card h1 { font-size: 30px; color: var(--brand-primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }

        .section-title {
            text-align: center;
            font-size: 24px;
            margin: 30px 0 20px;
            color: var(--brand-primary);
            padding: 0 20px;
        }
        .game-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            padding: 0 15px;
        }
        .game-card {
            background: var(--bg-secondary);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            text-decoration: none;
            transition: 0.3s;
        }
        .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 {
            padding: 10px;
            font-size: 14px;
            text-align: center;
            color: var(--text-primary);
        }

        .payment-section {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            padding: 20px;
            background: var(--bg-secondary);
            margin: 20px 0;
        }
        .payment-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }
        .payment-item i { font-size: 20px; color: var(--brand-primary); margin-bottom: 5px; }

        .article-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            padding: 20px;
        }
        .article-card {
            display: flex;
            gap: 15px;
            background: var(--bg-secondary);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            border: 1px solid var(--border-light);
        }
        .article-card img { width: 100px; height: 100px; object-fit: cover; }
        .article-info { padding: 10px; }
        .article-info h3 { font-size: 16px; color: var(--text-primary); margin-bottom: 5px; }
        .article-info p { font-size: 13px; color: var(--text-muted); line-height: 1.4; }

        .guideline-section {
            padding: 20px;
            background: var(--bg-secondary);
            margin: 20px 0;
        }
        .guideline-item {
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-light);
        }
        .guideline-item h3 { color: var(--brand-primary); margin-bottom: 8px; font-size: 18px; }
        .guideline-item p { color: var(--text-secondary); font-size: 14px; }

        .review-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            padding: 20px;
        }
        .review-card {
            background: var(--bg-secondary);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--border-light);
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { color: var(--brand-primary); font-size: 20px; }
        .review-header span { font-weight: bold; font-size: 14px; }
        .stars { color: var(--warning); font-size: 12px; margin-bottom: 5px; }
        .review-content { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }

        .lottery-section {
            padding: 20px;
            background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-primary));
        }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
        }
        .lottery-item .amount { color: var(--brand-primary); font-weight: bold; }

        .provider-wall {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            padding: 20px;
        }
        .provider-box {
            background: var(--brand-primary);
            color: var(--text-inverse);
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            font-weight: bold;
            font-size: 14px;
        }

        .faq-section { padding: 20px; }
        .faq-item { margin-bottom: 20px; background: var(--bg-secondary); padding: 15px; border-radius: 10px; }
        .faq-item h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 10px; }
        .faq-item p { font-size: 14px; color: var(--text-secondary); }

        .security-section {
            padding: 30px 20px;
            text-align: center;
            background: #0a0f1a;
            border-top: 1px solid var(--border-light);
        }
        .security-badges {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .badge { color: var(--text-secondary); font-size: 13px; display: flex; align-items: center; gap: 5px; }
        .badge i { color: var(--success); }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--bg-secondary);
            display: flex;
            justify-content: space-around;
            padding: 10px 0;
            border-top: 1px solid var(--border-light);
            z-index: 2000;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-decoration: none;
            color: var(--text-muted);
            font-size: 12px;
            gap: 5px;
        }
        .nav-item i { font-size: 18px; }
        .nav-item:hover { color: var(--brand-primary); }

        footer {
            background: var(--bg-secondary);
            padding: 40px 20px 100px;
            border-top: 1px solid var(--border-light);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            text-align: center;
        }
        .footer-copy {
            text-align: center;
            color: var(--text-muted);
            font-size: 12px;
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
        }