:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --dark-primary: #B8860B;
            --main-bg: #0F0F0F;
            --surface: #1A1A1A;
            --overlay: #000000;
            --card-bg: #252525;
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #6C757D;
            --text-highlight: #FFD700;
            --border-default: #333333;
            --border-strong: #444444;
            --border-brand: #FFD700;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--main-bg);
            color: var(--text-primary);
            font-family: 'Hind Siliguri', sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--surface);
            border-bottom: 1px solid var(--border-brand);
            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-logo-area img { width: 25px; height: 25px; border-radius: 50%; }
        .header-logo-area strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        .header-auth-buttons { display: flex; gap: 10px; }
        .btn-login {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 6px 15px;
            border-radius: 5px;
            cursor: pointer;
            font-family: inherit;
            transition: 0.3s;
        }
        .btn-register {
            background: var(--primary);
            color: #000;
            border: none;
            padding: 6px 15px;
            border-radius: 5px;
            cursor: pointer;
            font-family: inherit;
            font-weight: 600;
            transition: 0.3s;
        }
        .btn-login:hover, .btn-register:hover { opacity: 0.8; }
        main { padding: 0 0 80px 0; max-width: 1200px; margin: 0 auto; }
        .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; }
        .reward-box {
            background: linear-gradient(45deg, #1a1a1a, #333);
            border: 2px solid var(--primary);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            margin: 20px 0;
        }
        .reward-box h2 { color: var(--primary); margin-bottom: 15px; }
        .reward-box p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-big-reward {
            background: var(--accent);
            color: #fff;
            padding: 15px 40px;
            font-size: 20px;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
        }
        .intro-card {
            background: var(--card-bg);
            border-radius: 20px;
            padding: 25px;
            border-left: 5px solid var(--primary);
            margin: 20px 0;
        }
        .intro-card h1 { font-size: 32px; color: var(--primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title { font-size: 24px; color: var(--primary); margin: 30px 0 20px; text-align: center; border-bottom: 2px solid var(--border-strong); padding-bottom: 10px; }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .game-card {
            background: var(--surface);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            transition: transform 0.2s;
            border: 1px solid var(--border-default);
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--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); 
            background: var(--surface);
        }
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            text-align: center;
        }
        .payment-item {
            background: var(--card-bg);
            padding: 15px 5px;
            border-radius: 8px;
            font-size: 12px;
            color: var(--text-secondary);
            border: 1px solid var(--border-default);
        }
        .payment-item i { display: block; font-size: 20px; color: var(--primary); margin-bottom: 8px; }
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .guide-item {
            background: var(--surface);
            padding: 20px;
            border-radius: 10px;
            border-bottom: 3px solid var(--primary);
        }
        .guide-item h3 { color: var(--primary); margin-bottom: 8px; font-size: 18px; }
        .guide-item p { color: var(--text-secondary); font-size: 14px; }
        .review-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .review-card {
            background: var(--card-bg);
            padding: 20px;
            border-radius: 15px;
            position: relative;
        }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--primary); }
        .review-user { font-weight: bold; color: var(--text-primary); }
        .review-stars { color: var(--warning); font-size: 12px; margin-left: 10px; }
        .review-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .lottery-list {
            background: var(--surface);
            border-radius: 15px;
            overflow: hidden;
        }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-default);
            font-size: 14px;
        }
        .lottery-item:nth-child(even) { background: var(--card-bg); }
        .win-amount { color: var(--primary); font-weight: bold; }
        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .provider-item {
            background: linear-gradient(135deg, var(--surface), var(--card-bg));
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            font-weight: bold;
            color: var(--primary);
            border: 1px solid var(--border-strong);
        }
        .faq-section { margin-top: 30px; }
        .faq-item {
            background: var(--surface);
            margin-bottom: 10px;
            border-radius: 10px;
            overflow: hidden;
        }
        .faq-question {
            padding: 15px;
            color: var(--primary);
            cursor: pointer;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-answer { padding: 15px; color: var(--text-secondary); border-top: 1px solid var(--border-default); line-height: 1.6; }
        .security-box {
            background: #000;
            border: 1px solid var(--border-strong);
            padding: 20px;
            border-radius: 15px;
            text-align: center;
            margin: 20px 0;
        }
        .security-badge {
            display: inline-block;
            padding: 10px 20px;
            background: var(--surface);
            color: var(--primary);
            border-radius: 50px;
            margin: 5px;
            font-size: 12px;
            border: 1px solid var(--primary);
        }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--surface);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding: 10px 0;
            border-top: 2px solid var(--primary);
            z-index: 2000;
            box-shadow: 0 -5px 15px rgba(0,0,0,0.5);
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            text-align: center;
            font-size: 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 5px;
        }
        .nav-item i { font-size: 20px; color: var(--primary); }
        footer {
            background: var(--surface);
            padding: 40px 20px 100px 20px;
            border-top: 1px solid var(--border-strong);
            font-family: inherit;
        }
        .footer-contact {
            text-align: center;
            margin-bottom: 30px;
            color: var(--text-primary);
        }
        .contact-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 10px;
        }
        .contact-links a { color: var(--primary); text-decoration: none; font-size: 14px; }
        .footer-links-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-links-grid a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 13px;
            transition: 0.2s;
        }
        .footer-links-grid a:hover { color: var(--primary); }
        .footer-copyright {
            text-align: center;
            color: var(--text-muted);
            font-size: 12px;
            border-top: 1px solid var(--border-default);
            padding-top: 20px;
        }
        @media (min-width: 768px) {
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(8, 1fr); }
            .guide-grid { grid-template-columns: repeat(2, 1fr); }
            .review-grid { grid-template-columns: repeat(2, 1fr); }
            .provider-wall { grid-template-columns: repeat(4, 1fr); }
        }