:root {
            --primary: #FFD700;
            --primary-hover: #FFC107;
            --secondary: #1A1A1A;
            --accent: #E91E63;
            --main-bg: #0F0F0F;
            --surface-bg: #1C1C1C;
            --card-bg: #262626;
            --overlay-bg: rgba(0, 0, 0, 0.8);
            --success: #4CAF50;
            --error: #F44336;
            --warning: #FF9800;
            --info: #2196F3;
            --primary-text: #FFFFFF;
            --secondary-text: #B3B3B3;
            --muted-text: #808080;
            --highlight-text: #FFD700;
            --primary-border: #333333;
            --accent-border: #FFD700;
            --divider: #2A2A2A;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--main-bg);
            color: var(--primary-text);
            font-family: 'Hind Siliguri', sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
        }
        h1, h2, h3 { font-family: 'Noto Sans Bengali', sans-serif; }
        header {
            background-color: var(--secondary);
            border-bottom: 2px solid var(--primary);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .logo-section { display: flex; align-items: center; gap: 10px; }
        .logo-section img { width: 25px; height: 25px; border-radius: 50%; }
        .logo-section strong { font-size: 16px; font-weight: normal; color: var(--primary); }
        .auth-buttons { display: flex; gap: 10px; }
        .btn {
            padding: 8px 16px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            font-weight: 600;
            transition: 0.3s;
            font-family: 'Roboto', sans-serif;
        }
        .btn-login { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
        .btn-login:hover { background: var(--primary); color: var(--secondary); }
        .btn-reg { background: var(--primary); color: var(--secondary); }
        .btn-reg:hover { background: var(--primary-hover); }

        main { max-width: 1000px; margin: 0 auto; padding: 20px 15px; }
        .banner-container { margin-bottom: 25px; cursor: pointer; }
        .banner-container img {
            width: 100%;
            aspect-ratio: 2 / 1;
            object-fit: cover;
            border-radius: 15px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.5);
        }
        .reward-card {
            background: linear-gradient(135deg, #262626 0%, #1A1A1A 100%);
            padding: 30px;
            border-radius: 20px;
            text-align: center;
            border: 1px solid var(--primary);
            margin-bottom: 30px;
        }
        .reward-card h2 { color: var(--primary); margin-bottom: 15px; }
        .reward-card p { color: var(--secondary-text); margin-bottom: 20px; font-size: 18px; }
        .btn-large {
            background: var(--primary);
            color: var(--secondary);
            padding: 15px 40px;
            font-size: 20px;
            border-radius: 50px;
            text-decoration: none;
            display: inline-block;
            font-weight: bold;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
        }

        .intro-card {
            background: var(--surface-bg);
            padding: 25px;
            border-radius: 15px;
            border-left: 5px solid var(--primary);
            margin-bottom: 30px;
        }
        .intro-card h1 { font-size: 32px; color: var(--primary); margin-bottom: 10px; }
        .intro-card p { color: var(--secondary-text); font-size: 16px; }

        .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(--primary);
        }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .game-card {
            background: var(--card-bg);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            transition: transform 0.2s;
            border: 1px solid var(--primary-border);
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--primary); }
        .game-card img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
            display: block;
        }
        .game-card h3 {
            padding: 12px;
            font-size: 16px;
            text-align: center;
            color: var(--primary-text);
            background: var(--surface-bg);
        }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .payment-item {
            background: var(--card-bg);
            padding: 15px;
            text-align: center;
            border-radius: 10px;
            font-size: 13px;
            color: var(--secondary-text);
            border: 1px solid var(--divider);
        }
        .payment-item i { display: block; font-size: 24px; color: var(--primary); margin-bottom: 8px; }

        .guidelines {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .guide-box {
            background: var(--surface-bg);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--divider);
        }
        .guide-box h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guide-box p { color: var(--secondary-text); font-size: 14px; }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .review-card {
            background: var(--card-bg);
            padding: 20px;
            border-radius: 15px;
            position: relative;
        }
        .user-info { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .user-info i { font-size: 30px; color: var(--primary); }
        .user-info span { font-weight: bold; }
        .rating { color: var(--primary); margin-bottom: 10px; }
        .review-text { color: var(--secondary-text); font-size: 14px; margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--muted-text); }

        .lottery-list {
            background: var(--surface-bg);
            border-radius: 15px;
            padding: 15px;
            margin-bottom: 30px;
        }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px;
            border-bottom: 1px solid var(--divider);
            font-size: 14px;
        }
        .lottery-item:last-child { border-bottom: none; }
        .win-amount { color: var(--primary); font-weight: bold; }

        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .provider-item {
            background: linear-gradient(45deg, var(--secondary), var(--card-bg));
            padding: 20px;
            text-align: center;
            border-radius: 10px;
            font-weight: bold;
            color: var(--primary);
            border: 1px solid var(--primary-border);
        }

        .faq-section { margin-bottom: 30px; }
        .faq-item {
            background: var(--surface-bg);
            margin-bottom: 10px;
            border-radius: 10px;
            overflow: hidden;
        }
        .faq-q {
            padding: 15px;
            background: var(--card-bg);
            cursor: pointer;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
        }
        .faq-a { padding: 15px; color: var(--secondary-text); font-size: 14px; line-height: 1.6; }

        .security-box {
            background: #000;
            border: 1px solid var(--primary);
            padding: 20px;
            border-radius: 15px;
            text-align: center;
            margin-bottom: 30px;
        }
        .security-box i { font-size: 40px; color: var(--primary); margin-bottom: 10px; }
        .security-box p { font-size: 14px; color: var(--secondary-text); }
        .security-links { margin-top: 15px; display: flex; justify-content: center; gap: 15px; }
        .security-links a { color: var(--primary); text-decoration: none; font-size: 13px; }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--secondary);
            border-top: 2px solid var(--primary);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding: 10px 0;
            z-index: 2000;
        }
        .nav-item {
            text-decoration: none;
            color: var(--secondary-text);
            text-align: center;
            font-size: 12px;
            flex: 1;
        }
        .nav-item i { display: block; font-size: 20px; margin-bottom: 4px; }
        .nav-item:hover { color: var(--primary); }

        footer {
            background: var(--secondary);
            padding: 40px 20px;
            border-top: 1px solid var(--divider);
            margin-bottom: 80px;
            color: var(--secondary-text);
        }
        .footer-contact {
            text-align: center;
            margin-bottom: 30px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            align-items: center;
        }
        .footer-contact a { color: var(--primary); text-decoration: none; font-size: 14px; }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: var(--muted-text);
            text-decoration: none;
            font-size: 13px;
            transition: 0.3s;
        }
        .footer-links a:hover { color: var(--primary); }
        .copyright {
            text-align: center;
            font-size: 12px;
            border-top: 1px solid var(--divider);
            padding-top: 20px;
        }

        @media (max-width: 600px) {
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-links { grid-template-columns: repeat(2, 1fr); }
        }