:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #0F172A;
            --brand-primary: #FACC15;
            --brand-secondary: #EAB308;
            --brand-highlight: #FFD700;
            --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-active: #FACC15;
            --font-main: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-secondary: 'Inter', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-main);
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
        }
        header {
            background-color: var(--bg-secondary);
            padding: 10px 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-primary);
        }
        .logo-section { display: flex; align-items: center; gap: 10px; }
        .logo-img { width: 25px; height: 25px; border-radius: 50%; }
        .brand-name { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        .auth-buttons { display: flex; gap: 10px; }
        .btn {
            padding: 6px 15px;
            border-radius: 8px;
            font-family: var(--font-secondary);
            cursor: pointer;
            border: none;
            font-weight: 600;
            transition: 0.3s;
        }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--border-primary); }
        .btn-register { background: var(--brand-primary); color: var(--text-inverse); }
        .btn-register:hover { background: var(--brand-highlight); }

        main { padding-bottom: 80px; }
        .hero-banner { 
            width: 100%; 
            aspect-ratio: 2/1; 
            cursor: pointer; 
            display: block; 
            object-fit: cover; 
        }
        .section-container { padding: 20px 15px; }
        .reward-card {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
            border: 2px solid var(--brand-primary);
            border-radius: 16px;
            padding: 25px;
            text-align: center;
            margin-bottom: 20px;
        }
        .reward-card h2 { color: var(--brand-primary); margin-bottom: 15px; font-size: 24px; }
        .reward-card p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-big {
            background: var(--brand-primary);
            color: var(--text-inverse);
            padding: 15px 30px;
            font-size: 18px;
            font-weight: bold;
            border-radius: 50px;
            display: inline-block;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(250, 204, 21, 0.4);
        }

        .intro-card {
            background-color: var(--bg-secondary);
            border-radius: 16px;
            padding: 20px;
            border-left: 5px solid var(--brand-primary);
            margin-bottom: 30px;
        }
        .intro-card h1 { font-size: 30px; color: var(--brand-primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }

        .grid-games {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 30px;
        }
        .game-card {
            background: var(--bg-secondary);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            border: 1px solid var(--border-primary);
            transition: transform 0.2s;
        }
        .game-card:hover { transform: translateY(-5px); }
        .game-card img {
            width: 100%;
            aspect-ratio: 1/1;
            object-fit: cover;
            display: block;
        }
        .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;
            background: var(--bg-secondary);
            padding: 20px;
            border-radius: 16px;
            margin-bottom: 30px;
        }
        .payment-item {
            text-align: center;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .payment-item i {
            display: block;
            font-size: 24px;
            color: var(--brand-primary);
            margin-bottom: 5px;
        }

        .article-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-bottom: 30px;
        }
        .article-card {
            display: flex;
            background: var(--bg-secondary);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            border: 1px solid var(--border-primary);
        }
        .article-card img { width: 100px; height: 100px; object-fit: cover; }
        .article-content { padding: 12px; }
        .article-content h3 { font-size: 16px; color: var(--text-primary); margin-bottom: 5px; }
        .article-content p { font-size: 13px; color: var(--text-secondary); line-height: 1.4; }

        .guideline-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-bottom: 30px;
        }
        .guide-item {
            background: var(--bg-secondary);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--border-primary);
        }
        .guide-item h3 { color: var(--brand-primary); margin-bottom: 8px; font-size: 18px; }
        .guide-item p { color: var(--text-secondary); font-size: 14px; }

        .review-section {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-bottom: 30px;
        }
        .review-card {
            background: var(--bg-secondary);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--border-primary);
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { color: var(--text-secondary); font-size: 24px; }
        .review-user { font-weight: bold; color: var(--text-primary); }
        .review-stars { color: var(--brand-primary); font-size: 12px; margin-left: 10px; }
        .review-body { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); }

        .win-record {
            background: var(--bg-secondary);
            border-radius: 16px;
            padding: 20px;
            margin-bottom: 30px;
        }
        .win-item {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-primary);
            font-size: 14px;
        }
        .win-item:last-child { border: none; }
        .win-user { color: var(--text-secondary); }
        .win-amount { color: var(--brand-primary); font-weight: bold; }

        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .provider-block {
            background: var(--brand-primary);
            color: var(--text-inverse);
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            font-weight: bold;
            font-size: 14px;
        }

        .faq-section { margin-bottom: 30px; }
        .faq-item {
            background: var(--bg-secondary);
            padding: 15px;
            border-radius: 12px;
            margin-bottom: 10px;
            border: 1px solid var(--border-primary);
        }
        .faq-item h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 8px; }
        .faq-item p { color: var(--text-secondary); font-size: 14px; }

        .safety-section {
            background: #1e293b;
            border: 1px dashed var(--brand-primary);
            border-radius: 16px;
            padding: 20px;
            text-align: center;
            margin-bottom: 30px;
        }
        .safety-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 15px; color: var(--brand-primary); }
        .safety-text { font-size: 13px; color: var(--text-secondary); }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--bg-secondary);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding: 10px 0;
            border-top: 1px solid var(--border-primary);
            z-index: 1001;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            text-align: center;
            font-size: 12px;
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .nav-item i { font-size: 20px; color: var(--text-secondary); }
        .nav-item:hover i { color: var(--brand-primary); }

        footer {
            background: var(--bg-secondary);
            padding: 30px 15px;
            border-top: 1px solid var(--border-primary);
            text-align: center;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 20px;
            text-align: left;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            display: block;
            margin-bottom: 5px;
        }
        .copyright {
            color: var(--text-muted);
            font-size: 12px;
            border-top: 1px solid var(--border-primary);
            padding-top: 15px;
        }
        h2 { font-size: 24px; margin-bottom: 20px; color: var(--text-primary); text-align: center; }