:root {
            --bg-primary: #0F172A;
            --bg-secondary: #1E293B;
            --bg-accent: #0F172A;
            --brand-primary: #FACC15;
            --brand-secondary: #EAB308;
            --brand-accent: #FDE047;
            --brand-highlight: #EF4444;
            --success: #22C55E;
            --warning: #F59E0B;
            --error: #EF4444;
            --info: #3B82F6;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-inverse: #0F172A;
            --border-primary: #334155;
            --border-secondary: #475569;
            --border-focused: #FACC15;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
            --font-accent: 'Noto Sans Bengali', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-primary);
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-secondary);
            border-bottom: 1px solid var(--border-primary);
            padding: 0 15px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-logo { display: flex; align-items: center; gap: 10px; }
        .header-logo img { width: 25px; height: 25px; border-radius: 4px; }
        .header-logo strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        .header-actions { display: flex; gap: 10px; }
        .btn-login {
            background: transparent;
            border: 1px solid var(--brand-primary);
            color: var(--brand-primary);
            padding: 6px 15px;
            border-radius: 8px;
            cursor: pointer;
            font-family: var(--font-primary);
            font-size: 14px;
            transition: 0.3s;
        }
        .btn-register {
            background: var(--brand-primary);
            border: none;
            color: var(--text-inverse);
            padding: 6px 15px;
            border-radius: 8px;
            cursor: pointer;
            font-family: var(--font-primary);
            font-size: 14px;
            font-weight: 600;
            transition: 0.3s;
        }
        .btn-login:hover, .btn-register:hover { opacity: 0.9; transform: translateY(-1px); }
        main { padding: 0 15px 100px; max-width: 800px; margin: 0 auto; }
        .banner-container { margin: 15px 0; border-radius: 15px; overflow: hidden; cursor: pointer; }
        .banner-container img { width: 100%; aspect-ratio: 2/1; object-fit: cover; display: block; }
        .reward-section {
            background: linear-gradient(135deg, var(--bg-secondary), #2d3a4f);
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            margin: 20px 0;
            border: 1px solid var(--border-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-reg {
            background: var(--brand-highlight);
            color: white;
            padding: 15px 30px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: bold;
            display: inline-block;
            border: none;
            cursor: pointer;
            font-size: 18px;
            box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
        }
        .intro-card {
            background: var(--bg-secondary);
            padding: 30px;
            border-radius: 20px;
            text-align: center;
            margin: 20px 0;
            border-left: 5px solid var(--brand-primary);
        }
        .intro-card h1 { font-size: 30px; color: var(--brand-primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; line-height: 1.8; }
        .section-title { font-size: 24px; margin: 30px 0 20px; color: var(--text-primary); display: flex; align-items: center; gap: 10px; }
        .section-title::before { content: ''; width: 4px; height: 24px; background: var(--brand-primary); border-radius: 2px; }
        .game-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
        .game-card {
            background: var(--bg-secondary);
            border-radius: 15px;
            text-decoration: none;
            overflow: hidden;
            border: 1px solid var(--border-primary);
            transition: 0.3s;
        }
        .game-card:hover { border-color: var(--brand-primary); transform: translateY(-5px); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-info { padding: 12px; text-align: center; }
        .game-info h3 { font-size: 16px; color: var(--text-primary); font-weight: 500; }
        .payment-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
        .payment-item {
            background: var(--bg-secondary);
            padding: 15px 5px;
            border-radius: 12px;
            text-align: center;
            font-size: 12px;
            border: 1px solid var(--border-primary);
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .payment-item i { font-size: 20px; color: var(--brand-primary); }
        .guideline-grid { display: grid; grid-template-columns: 1fr; gap: 15px; }
        .guideline-item { background: var(--bg-secondary); padding: 20px; border-radius: 15px; border: 1px solid var(--border-primary); }
        .guideline-item h3 { color: var(--brand-primary); margin-bottom: 10px; font-size: 18px; }
        .guideline-item p { color: var(--text-secondary); font-size: 14px; }
        .review-grid { display: grid; grid-template-columns: 1fr; gap: 15px; }
        .review-card { background: var(--bg-secondary); padding: 20px; border-radius: 15px; border: 1px solid var(--border-primary); }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 24px; color: var(--text-muted); }
        .review-user { font-weight: 600; color: var(--text-primary); }
        .review-rating { color: var(--brand-primary); font-size: 14px; margin-left: auto; }
        .review-text { color: var(--text-secondary); font-size: 14px; margin-bottom: 10px; line-height: 1.6; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .lottery-list { display: grid; grid-template-columns: 1fr; gap: 10px; }
        .lottery-item {
            background: var(--bg-secondary);
            padding: 15px;
            border-radius: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border: 1px solid var(--border-primary);
        }
        .lottery-user { font-weight: 500; color: var(--text-secondary); }
        .lottery-game { font-size: 14px; color: var(--text-primary); }
        .lottery-win { color: var(--brand-primary); font-weight: bold; }
        .lottery-time { font-size: 12px; color: var(--text-muted); }
        .provider-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
        .provider-item {
            background: linear-gradient(45deg, var(--bg-secondary), var(--border-primary));
            padding: 15px;
            border-radius: 10px;
            text-align: center;
            font-weight: bold;
            color: var(--brand-accent);
            border: 1px solid var(--border-secondary);
        }
        .faq-item { background: var(--bg-secondary); margin-bottom: 15px; border-radius: 15px; overflow: hidden; border: 1px solid var(--border-primary); }
        .faq-question { padding: 15px 20px; background: #253145; color: var(--brand-primary); font-weight: 600; cursor: pointer; display: block; }
        .faq-answer { padding: 15px 20px; color: var(--text-secondary); font-size: 14px; line-height: 1.6; }
        .security-section {
            background: var(--bg-secondary);
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            margin: 30px 0;
            border: 1px solid var(--border-primary);
        }
        .security-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; margin: 20px 0; }
        .security-badge { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-secondary); }
        .security-badge i { color: var(--success); font-size: 20px; }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-primary);
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            padding: 10px 0;
            z-index: 2000;
            box-shadow: 0 -5px 20px rgba(0,0,0,0.5);
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 10px;
            gap: 5px;
        }
        .nav-item i { font-size: 20px; }
        footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-primary);
            padding: 30px 15px;
            text-align: center;
            color: var(--text-secondary);
        }
        .footer-contact { margin-bottom: 25px; display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; align-items: center; }
        .footer-contact a { color: var(--brand-primary); text-decoration: none; font-size: 14px; }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            text-align: left;
            max-width: 600px;
            margin: 0 auto 30px;
        }
        .footer-links a { color: var(--text-muted); text-decoration: none; font-size: 13px; display: block; padding: 5px 0; }
        .footer-links a:hover { color: var(--brand-primary); }
        .copyright { font-size: 13px; color: var(--text-muted); border-top: 1px solid var(--border-primary); padding-top: 20px; }