:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --highlight: #FFC107;
            --bg-main: #0F0F0F;
            --bg-surface: #1A1A1A;
            --bg-elevated: #2C2C2C;
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #757575;
            --success: #28A745;
            --warning: #FFC107;
            --error: #DC3545;
            --info: #17A2B8;
            --border-default: #333333;
            --border-strong: #444444;
            --border-brand: #FFD700;
            --font-primary: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-main);
            color: var(--text-primary);
            font-family: var(--font-primary);
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-surface);
            border-bottom: 2px 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: 4px; }
        .header-logo-area strong { font-size: 16px; font-weight: normal; color: var(--primary); }
        .header-btns { display: flex; gap: 10px; }
        .btn-login { 
            background: transparent; color: var(--text-primary); border: 1px solid var(--primary); 
            padding: 6px 15px; border-radius: 20px; cursor: pointer; font-family: var(--font-primary);
        }
        .btn-reg { 
            background: var(--primary); color: var(--bg-main); border: none; 
            padding: 6px 15px; border-radius: 20px; cursor: pointer; font-weight: 600; font-family: var(--font-primary);
        }
        main { max-width: 1000px; margin: 0 auto; padding: 20px 15px; }
        .hero-banner { 
            width: 100%; aspect-ratio: 2/1; object-fit: cover; border-radius: 15px; 
            cursor: pointer; box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
        }
        .reward-section {
            background: linear-gradient(45deg, var(--bg-elevated), #3d3d3d);
            border: 2px solid var(--border-brand);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            margin: 20px 0;
        }
        .reward-section h2 { color: var(--primary); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-giant {
            background: var(--accent); color: white; border: none; padding: 15px 40px;
            font-size: 20px; font-weight: bold; border-radius: 50px; cursor: pointer;
            text-transform: uppercase; box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
            transition: transform 0.2s;
        }
        .btn-giant:hover { transform: scale(1.05); }
        .intro-card {
            background: var(--bg-surface);
            border-radius: 20px;
            padding: 25px;
            margin: 20px 0;
            border-left: 5px solid var(--primary);
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .intro-card h1 { font-size: 32px; color: var(--primary); margin-bottom: 10px; }
        .intro-card p { font-size: 16px; color: var(--text-secondary); }
        .section-title { 
            font-size: 24px; color: var(--primary); margin: 30px 0 20px; 
            text-align: center; position: relative; padding-bottom: 10px;
        }
        .section-title::after {
            content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
            width: 60px; height: 3px; background: var(--accent);
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: 15px;
            overflow: hidden;
            text-decoration: none;
            transition: transform 0.3s, border 0.3s;
            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: 12px; font-size: 16px; text-align: center; color: var(--text-primary); 
            white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
        }
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin: 20px 0;
        }
        .pay-item {
            background: var(--bg-elevated);
            padding: 15px 10px;
            text-align: center;
            border-radius: 12px;
            font-size: 12px;
            color: var(--text-secondary);
            border: 1px solid var(--border-default);
        }
        .pay-item i { display: block; font-size: 20px; color: var(--primary); margin-bottom: 8px; }
        .guideline-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin: 20px 0;
        }
        .guide-card {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
            border-bottom: 3px solid var(--border-strong);
        }
        .guide-card h3 { color: var(--highlight); margin-bottom: 10px; font-size: 18px; }
        .guide-card p { font-size: 14px; color: var(--text-secondary); }
        .review-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin: 20px 0;
        }
        .review-card {
            background: var(--bg-elevated);
            padding: 20px;
            border-radius: 15px;
            position: relative;
        }
        .rev-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .rev-header i { font-size: 24px; color: var(--primary); }
        .rev-user { font-weight: 600; font-size: 14px; }
        .rev-stars { color: var(--highlight); font-size: 12px; margin-left: auto; }
        .rev-text { font-size: 14px; color: var(--text-secondary); font-style: italic; }
        .rev-date { display: block; margin-top: 10px; font-size: 11px; color: var(--text-muted); text-align: right; }
        .lottery-list {
            background: var(--bg-surface);
            border-radius: 15px;
            overflow: hidden;
            margin: 20px 0;
        }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-default);
            font-size: 14px;
        }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-win { color: var(--primary); font-weight: bold; }
        .provider-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin: 20px 0;
        }
        .provider-box {
            background: var(--bg-elevated);
            padding: 15px;
            text-align: center;
            border-radius: 10px;
            font-weight: bold;
            color: var(--highlight);
            border: 1px dashed var(--primary);
        }
        .faq-section { margin: 30px 0; }
        .faq-item {
            background: var(--bg-surface);
            margin-bottom: 10px;
            border-radius: 10px;
            overflow: hidden;
        }
        .faq-question {
            padding: 15px;
            background: var(--bg-elevated);
            color: var(--primary);
            cursor: pointer;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
        }
        .faq-answer { padding: 15px; font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        .security-section {
            background: var(--bg-surface);
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            border: 1px solid var(--border-strong);
        }
        .sec-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; }
        .sec-icons i { font-size: 30px; color: var(--success); }
        .sec-text { font-size: 13px; color: var(--text-muted); margin-bottom: 15px; }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            padding: 10px 0;
            border-top: 2px solid var(--border-brand);
            z-index: 2000;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 11px;
            gap: 5px;
        }
        .nav-item i { font-size: 18px; color: var(--primary); }
        footer {
            background: var(--bg-surface);
            padding: 40px 20px 100px;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-contact {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }
        .contact-link { 
            color: var(--primary); text-decoration: none; font-size: 14px; 
            background: var(--bg-elevated); padding: 5px 12px; border-radius: 5px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
            text-align: left;
        }
        .footer-links a { 
            color: var(--text-secondary); text-decoration: none; 
            font-size: 13px; display: block; padding: 5px 0;
        }
        .footer-copy { color: var(--text-muted); font-size: 12px; }
        @media (min-width: 768px) {
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(8, 1fr); }
            .guideline-grid { grid-template-columns: repeat(3, 1fr); }
            .review-grid { grid-template-columns: repeat(2, 1fr); }
        }