:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-tertiary: #020617;
            --brand-primary: #FFD700;
            --brand-secondary: #C5A000;
            --brand-accent: #E11D48;
            --success: #22C55E;
            --error: #EF4444;
            --warning: #F59E0B;
            --info: #3B82F6;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-inverse: #0F172A;
            --border-default: #334155;
            --border-strong: #475569;
            --border-light: #1E293B;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-primary);
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
        }
        header {
            background-color: var(--bg-secondary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 15px;
            height: 60px;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--brand-primary);
        }
        .header-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: white; }
        .header-logo img { width: 25px; height: 25px; border-radius: 4px; }
        .header-logo strong { font-size: 16px; font-weight: normal; }
        .header-auth { display: flex; gap: 10px; }
        .btn-auth {
            padding: 6px 14px;
            border-radius: 8px;
            font-size: 14px;
            cursor: pointer;
            border: none;
            font-weight: 600;
            transition: 0.3s;
        }
        .btn-login { background: transparent; color: var(--brand-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: 0 10px 80px 10px; max-width: 1200px; margin: 0 auto; }
        .banner-container { width: 100%; margin: 15px 0; }
        .banner-container img { 
            width: 100%; 
            aspect-ratio: 2/1; 
            object-fit: cover; 
            border-radius: 15px; 
            cursor: pointer; 
        }
        .reward-section {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            margin: 20px 0;
            border: 1px solid var(--border-strong);
        }
        .reward-section h2 { color: var(--brand-primary); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-main {
            background: var(--brand-accent);
            color: white;
            padding: 15px 30px;
            border-radius: 50px;
            font-size: 18px;
            font-weight: bold;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(225, 29, 72, 0.4);
            transition: 0.3s;
        }
        .btn-main:hover { transform: scale(1.05); background: #ff2a5a; }
        .info-card {
            background: var(--bg-secondary);
            padding: 30px;
            border-radius: 20px;
            margin: 20px 0;
            border-left: 5px solid var(--brand-primary);
        }
        .info-card h1 { font-size: 30px; color: var(--brand-primary); margin-bottom: 10px; }
        .info-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title {
            font-size: 24px;
            margin: 30px 0 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--brand-primary);
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        .game-card {
            background: var(--bg-secondary);
            border-radius: 15px;
            overflow: hidden;
            text-decoration: none;
            transition: 0.3s;
            border: 1px solid var(--border-default);
        }
        .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: 12px; 
            font-size: 16px; 
            text-align: center; 
            color: var(--text-primary); 
            font-weight: 500; 
        }
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .payment-item {
            background: var(--bg-secondary);
            padding: 15px;
            text-align: center;
            border-radius: 12px;
            font-size: 13px;
            color: var(--text-secondary);
            border: 1px solid var(--border-default);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .payment-item i { font-size: 20px; color: var(--brand-primary); }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .guide-card {
            background: var(--bg-secondary);
            padding: 20px;
            border-radius: 15px;
            border: 1px solid var(--border-default);
        }
        .guide-card h3 { color: var(--brand-primary); margin-bottom: 10px; font-size: 18px; }
        .guide-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 15px;
            margin-bottom: 30px;
        }
        .review-card {
            background: var(--bg-tertiary);
            padding: 20px;
            border-radius: 15px;
            border: 1px solid var(--border-strong);
        }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--brand-primary); }
        .review-user { font-weight: 600; color: var(--text-primary); }
        .review-stars { color: var(--brand-primary); font-size: 14px; margin-bottom: 8px; }
        .review-content { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); }
        .lottery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 10px;
            margin-bottom: 30px;
        }
        .lottery-card {
            background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-tertiary));
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-default);
        }
        .lottery-card .user { font-size: 14px; color: var(--text-secondary); }
        .lottery-card .game { font-size: 13px; color: var(--text-muted); margin: 5px 0; }
        .lottery-card .amount { color: var(--brand-primary); font-weight: bold; font-size: 16px; }
        .lottery-card .time { font-size: 11px; color: var(--text-muted); }
        .provider-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .provider-item {
            background: var(--bg-secondary);
            padding: 15px;
            text-align: center;
            border-radius: 10px;
            font-weight: bold;
            color: var(--brand-primary);
            border: 1px solid var(--border-default);
            text-transform: uppercase;
        }
        .faq-section {
            margin-bottom: 30px;
        }
        .faq-item {
            background: var(--bg-secondary);
            margin-bottom: 10px;
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid var(--border-default);
        }
        .faq-question {
            padding: 15px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            color: var(--brand-primary);
        }
        .faq-answer {
            padding: 0 15px 15px;
            color: var(--text-secondary);
            font-size: 14px;
        }
        .security-section {
            background: var(--bg-tertiary);
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            border: 1px solid var(--border-strong);
            margin-bottom: 30px;
        }
        .security-badge { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; }
        .security-badge i { font-size: 40px; color: var(--success); }
        .security-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 15px; }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            display: flex;
            justify-content: space-around;
            align-items: center;
            height: 65px;
            border-top: 2px solid var(--brand-primary);
            z-index: 2000;
            padding-bottom: env(safe-area-inset-bottom);
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 12px;
            gap: 4px;
        }
        .nav-item i { font-size: 20px; }
        footer {
            background: var(--bg-tertiary);
            padding: 40px 15px 100px;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-contact {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-bottom: 30px;
            color: var(--text-secondary);
        }
        .footer-contact a { color: var(--brand-primary); text-decoration: none; font-size: 14px; }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-bottom: 30px;
            text-align: left;
        }
        .footer-links a {
            display: block;
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            margin-bottom: 8px;
        }
        .copyright { color: var(--text-muted); font-size: 12px; margin-top: 20px; }
        @media (min-width: 768px) {
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(8, 1fr); }
            .provider-grid { grid-template-columns: repeat(4, 1fr); }
        }