:root {
            --primary: #FFD700;
            --primary-dark: #B8860B;
            --secondary: #1A1A1A;
            --accent: #E61E25;
            --main-bg: #0F0F0F;
            --surface: #1E1E1E;
            --elevated: #2D2D2D;
            --overlay: rgba(0, 0, 0, 0.8);
            --text-heading: #FFFFFF;
            --text-body: #E0E0E0;
            --text-muted: #A0A0A0;
            --on-primary: #000000;
            --success: #4CAF50;
            --warning: #FFC107;
            --error: #F44336;
            --info: #2196F3;
            --border-default: #333333;
            --border-strong: #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; }
        body {
            background-color: var(--main-bg);
            color: var(--text-body);
            font-family: var(--font-primary);
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--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;
        }
        .brand-area { display: flex; align-items: center; gap: 10px; }
        .brand-logo { width: 25px; height: 25px; border-radius: 4px; }
        .brand-name { font-size: 16px; font-weight: normal; color: var(--text-heading); }
        .nav-buttons { display: flex; gap: 10px; }
        .btn {
            padding: 8px 16px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            font-family: var(--font-primary);
            font-weight: 600;
            transition: 0.3s;
            text-decoration: none;
            font-size: 14px;
        }
        .btn-login { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
        .btn-register { background: var(--primary); color: var(--on-primary); }
        .btn:hover { opacity: 0.9; transform: translateY(-2px); }
        main { padding: 15px; max-width: 1200px; margin: 0 auto; padding-bottom: 80px; }
        .banner-container { margin-bottom: 20px; }
        .banner-img {
            width: 100%;
            aspect-ratio: 2 / 1;
            border-radius: 15px;
            object-fit: cover;
            cursor: pointer;
            display: block;
            box-shadow: 0 4px 15px rgba(0,0,0,0.5);
        }
        .reward-card {
            background: linear-gradient(135deg, var(--elevated), var(--secondary));
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            border: 1px solid var(--border-strong);
            margin-bottom: 20px;
        }
        .reward-card h2 { color: var(--primary); margin-bottom: 15px; font-size: 24px; }
        .reward-card p { margin-bottom: 20px; color: var(--text-body); }
        .btn-large {
            background: var(--primary);
            color: var(--on-primary);
            padding: 15px 30px;
            font-size: 18px;
            border-radius: 50px;
            display: inline-block;
            text-transform: uppercase;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
        }
        .intro-card {
            background: var(--surface);
            padding: 30px;
            border-radius: 20px;
            border-left: 5px solid var(--primary);
            margin-bottom: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }
        .intro-card h1 { color: var(--text-heading); font-size: 32px; margin-bottom: 10px; }
        .intro-card p { color: var(--text-muted); font-size: 16px; line-height: 1.8; }
        .section-title {
            color: var(--text-heading);
            font-size: 22px;
            margin: 30px 0 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            border-left: 4px solid var(--primary);
            padding-left: 15px;
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        .game-card {
            background: var(--surface);
            border-radius: 15px;
            overflow: hidden;
            text-decoration: none;
            border: 1px solid var(--border-default);
            transition: 0.3s;
        }
        .game-card:hover { border-color: var(--primary); transform: scale(1.02); }
        .game-img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
            display: block;
        }
        .game-info { padding: 12px; text-align: center; }
        .game-info h3 { color: var(--text-heading); font-size: 16px; font-weight: 500; }
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
            gap: 15px;
            margin-bottom: 30px;
        }
        .payment-item {
            background: var(--surface);
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-default);
            color: var(--text-body);
            font-size: 13px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .payment-item i { color: var(--primary); font-size: 24px; }
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .guide-item {
            background: var(--surface);
            padding: 20px;
            border-radius: 15px;
            border: 1px solid var(--border-default);
        }
        .guide-item h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guide-item p { color: var(--text-muted); font-size: 14px; }
        .comment-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .comment-card {
            background: var(--elevated);
            padding: 20px;
            border-radius: 15px;
            border: 1px solid var(--border-strong);
        }
        .comment-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }
        .comment-header i { font-size: 30px; color: var(--text-muted); }
        .comment-user { color: var(--text-heading); font-weight: 600; font-size: 15px; }
        .comment-rating { color: var(--primary); margin: 0 10px; font-size: 12px; }
        .comment-date { color: var(--text-muted); font-size: 12px; }
        .comment-text { font-size: 14px; color: var(--text-body); line-height: 1.6; }
        .lottery-list {
            background: var(--surface);
            border-radius: 15px;
            overflow: hidden;
            border: 1px solid var(--border-highlight);
        }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-default);
        }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-user { font-weight: 500; color: var(--text-body); }
        .lottery-game { font-size: 13px; color: var(--text-muted); }
        .lottery-win { color: var(--primary); font-weight: 700; }
        .lottery-time { font-size: 12px; color: var(--text-muted); }
        .provider-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .provider-box {
            background: var(--elevated);
            padding: 15px;
            border-radius: 10px;
            text-align: center;
            color: var(--primary);
            font-weight: 600;
            border: 1px solid var(--border-strong);
        }
        .faq-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .faq-item {
            background: var(--surface);
            padding: 20px;
            border-radius: 15px;
            border: 1px solid var(--border-default);
        }
        .faq-item h3 { color: var(--text-heading); font-size: 16px; margin-bottom: 10px; }
        .faq-item p { color: var(--text-muted); font-size: 14px; line-height: 1.6; }
        .security-section {
            background: var(--surface);
            padding: 25px;
            border-radius: 20px;
            text-align: center;
            border: 1px dashed var(--primary);
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin: 20px 0;
        }
        .security-item {
            padding: 15px;
            background: var(--elevated);
            border-radius: 10px;
            font-size: 13px;
        }
        .security-item i { color: var(--success); margin-bottom: 8px; display: block; font-size: 20px; }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--surface);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding: 12px 0;
            border-top: 2px solid var(--border-highlight);
            z-index: 1000;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-muted);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 11px;
            gap: 5px;
        }
        .nav-item i { font-size: 20px; }
        footer {
            background: var(--secondary);
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 13px;
            border-top: 1px solid var(--border-default);
        }
        .footer-contact {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-bottom: 30px;
            align-items: center;
        }
        .footer-contact a { color: var(--primary); text-decoration: none; }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-links a { color: var(--text-muted); text-decoration: none; display: block; }
        .footer-copy { text-align: center; color: var(--text-muted); border-top: 1px solid var(--border-default); padding-top: 20px; }
        @media (min-width: 768px) {
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .guide-grid { grid-template-columns: repeat(2, 1fr); }
            .comment-grid { grid-template-columns: repeat(2, 1fr); }
            .provider-grid { grid-template-columns: repeat(4, 1fr); }
        }