:root {
            --primary: #FFD700;
            --primary-dark: #C5A000;
            --secondary: #1A1A1A;
            --accent: #E63946;
            --bg-main: #0F0F0F;
            --bg-surface: #1E1E1E;
            --bg-overlay: rgba(0, 0, 0, 0.85);
            --bg-alternate: #151515;
            --text-heading: #FFFFFF;
            --text-body: #CCCCCC;
            --text-muted: #888888;
            --text-inverse: #000000;
            --success: #4CAF50;
            --error: #F44336;
            --warning: #FF9800;
            --info: #2196F3;
            --border-subtle: #333333;
            --border-medium: #444444;
            --border-highlight: #FFD700;
            --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-main);
            color: var(--text-body);
            font-family: var(--font-primary);
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-surface);
            border-bottom: 2px solid var(--border-highlight);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        header .logo-area { display: flex; align-items: center; gap: 10px; }
        header img { width: 25px; height: 25px; border-radius: 50%; }
        header strong { font-size: 16px; font-weight: normal; color: var(--text-heading); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-login { background: transparent; border: 1px solid var(--primary); color: var(--primary); padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-primary); font-size: 14px; }
        .btn-register { background: var(--primary); border: none; color: var(--text-inverse); padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-primary); font-weight: 600; font-size: 14px; }
        
        main { padding-bottom: 80px; }
        .hero-banner { width: 100%; aspect-ratio: 2/1; overflow: hidden; cursor: pointer; }
        .hero-banner img { width: 100%; height: 100%; object-fit: cover; }
        
        .reward-section {
            background: linear-gradient(45deg, var(--bg-surface), var(--bg-alternate));
            padding: 40px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border-subtle);
        }
        .reward-section h2 { color: var(--primary); font-size: 24px; margin-bottom: 15px; }
        .reward-section p { margin-bottom: 25px; color: var(--text-body); font-size: 16px; }
        .btn-large { 
            background: var(--accent); 
            color: white; 
            padding: 15px 30px; 
            border-radius: 50px; 
            text-decoration: none; 
            font-weight: bold; 
            font-size: 18px; 
            display: inline-block; 
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
            border: none;
            cursor: pointer;
        }

        .intro-card {
            margin: 20px;
            padding: 25px;
            background: var(--bg-surface);
            border-radius: 15px;
            border-left: 5px solid var(--primary);
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }
        .intro-card h1 { color: var(--primary); font-size: 32px; margin-bottom: 10px; }
        .intro-card p { font-size: 16px; color: var(--text-body); }

        .section-title {
            text-align: center;
            color: var(--text-heading);
            margin: 30px 0 20px;
            font-size: 24px;
            position: relative;
            padding-bottom: 10px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: var(--primary);
        }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            padding: 0 15px;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            transition: transform 0.2s;
            border: 1px solid var(--border-subtle);
        }
        .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-heading);
            text-align: center;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            padding: 20px 15px;
            background: var(--bg-alternate);
        }
        .payment-item {
            background: var(--bg-surface);
            padding: 15px 5px;
            border-radius: 8px;
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            border: 1px solid var(--border-subtle);
        }
        .payment-item i {
            display: block;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .guidelines-section {
            padding: 20px 15px;
            display: grid;
            gap: 20px;
        }
        .guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-subtle);
        }
        .guide-item h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guide-item p { font-size: 14px; color: var(--text-body); }

        .reviews-grid {
            display: grid;
            gap: 15px;
            padding: 0 15px;
        }
        .review-card {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-medium);
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 24px; color: var(--primary); }
        .review-header .username { font-weight: 600; color: var(--text-heading); }
        .review-stars { color: #FFC107; font-size: 12px; margin-bottom: 10px; }
        .review-text { font-size: 14px; margin-bottom: 10px; font-style: italic; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }

        .lottery-container {
            background: var(--bg-alternate);
            padding: 20px 15px;
            border-radius: 15px;
            margin: 20px 15px;
        }
        .lottery-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 13px;
        }
        .lottery-row:last-child { border: none; }
        .win-amount { color: var(--primary); font-weight: bold; }

        .providers-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            padding: 0 15px;
        }
        .provider-box {
            background: linear-gradient(135deg, #222, #333);
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            color: var(--primary);
            font-weight: bold;
            border: 1px solid var(--border-highlight);
        }

        .faq-section { padding: 20px 15px; }
        .faq-item {
            background: var(--bg-surface);
            margin-bottom: 10px;
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }
        .faq-question {
            padding: 15px;
            background: var(--bg-alternate);
            color: var(--text-heading);
            font-weight: 600;
            cursor: pointer;
            font-size: 15px;
        }
        .faq-answer { padding: 15px; font-size: 14px; color: var(--text-body); line-height: 1.6; }

        .security-section {
            background: var(--bg-surface);
            padding: 30px 20px;
            text-align: center;
            border-top: 2px solid var(--border-subtle);
        }
        .security-badge { font-size: 40px; color: var(--success); margin-bottom: 15px; }
        .security-notice { font-size: 13px; color: var(--text-muted); margin-bottom: 15px; }
        .security-links a { color: var(--primary); text-decoration: none; font-size: 14px; margin: 0 10px; }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-surface);
            border-top: 2px solid var(--primary);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding: 10px 0;
            z-index: 2000;
        }
        .nav-item {
            text-decoration: none;
            display: flex;
            flex-direction: column;
            align-items: center;
            color: var(--text-muted);
            font-size: 11px;
            gap: 5px;
        }
        .nav-item i { font-size: 20px; }

        footer {
            background: var(--bg-surface);
            padding: 30px 20px;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-muted);
            text-align: center;
        }
        footer .contact-row {
            margin-bottom: 25px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            align-items: center;
        }
        footer .contact-row a { color: var(--primary); text-decoration: none; font-size: 14px; }
        footer .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            text-align: left;
            margin-bottom: 25px;
        }
        footer .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            display: block;
            margin-bottom: 5px;
        }
        footer .copyright { font-size: 12px; border-top: 1px solid var(--border-subtle); padding-top: 20px; }