:root {
            --primary: #FFD700;
            --primary-dark: #B8860B;
            --secondary: #E63946;
            --accent: #00FF41;
            --bg-main: #0B0E11;
            --bg-surface: #1B1F23;
            --bg-overlay: rgba(0, 0, 0, 0.85);
            --grad-start: #1a1a2e;
            --grad-end: #16213e;
            --success: #00C853;
            --warning: #FFAB00;
            --error: #FF5252;
            --info: #2196F3;
            --text-primary: #FFFFFF;
            --text-secondary: #B7B7B7;
            --text-muted: #848E9C;
            --text-inverse: #000000;
            --border-default: #2B3139;
            --border-highlight: #FFD700;
            --border-subtle: #363C44;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
            --font-display: 'Noto Sans Bengali', 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: var(--bg-surface);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-default);
        }
        header .logo-section { display: flex; align-items: center; gap: 10px; }
        header img { width: 25px; height: 25px; }
        header strong { font-size: 16px; font-weight: normal; }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-login { background: transparent; border: 1px solid var(--primary); color: var(--primary); padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-primary); }
        .btn-register { background: var(--primary); border: none; color: var(--text-inverse); padding: 6px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-primary); font-weight: 600; }
        main { max-width: 1200px; margin: 0 auto; padding: 0 15px 80px 15px; }
        .hero-banner { width: 100%; aspect-ratio: 2/1; overflow: hidden; border-radius: 15px; margin-top: 20px; cursor: pointer; }
        .hero-banner img { width: 100%; height: 100%; object-fit: cover; }
        .reward-section { background: linear-gradient(135deg, var(--grad-start), var(--grad-end)); padding: 30px; border-radius: 15px; text-align: center; margin: 20px 0; border: 1px solid var(--border-highlight); }
        .reward-section h2 { color: var(--primary); margin-bottom: 15px; font-family: var(--font-display); }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; }
        .btn-main-cta { background: var(--secondary); color: white; padding: 15px 30px; border-radius: 30px; font-size: 18px; font-weight: bold; text-decoration: none; display: inline-block; cursor: pointer; border: none; transition: 0.3s; }
        .btn-main-cta:hover { transform: scale(1.05); background: #c32f3a; }
        .intro-card { background: var(--bg-surface); padding: 30px; border-radius: 15px; border-left: 5px solid var(--primary); margin: 20px 0; }
        .intro-card h1 { font-family: var(--font-display); font-size: 32px; color: var(--primary); margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title { font-family: var(--font-display); font-size: 24px; text-align: center; margin: 40px 0 20px; color: var(--primary); }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .game-card { background: var(--bg-surface); border-radius: 12px; overflow: hidden; text-decoration: none; transition: 0.3s; border: 1px solid var(--border-default); }
        .game-card:hover { border-color: var(--primary); transform: translateY(-5px); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { padding: 10px; text-align: center; font-size: 16px; color: var(--text-primary); }
        .payment-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; text-align: center; }
        .payment-item { background: var(--bg-surface); padding: 15px; border-radius: 10px; border: 1px solid var(--border-subtle); display: flex; flex-direction: column; align-items: center; gap: 10px; }
        .payment-item i { font-size: 24px; color: var(--primary); }
        .payment-item span { font-size: 12px; color: var(--text-secondary); }
        .guideline-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
        .guideline-card { background: var(--bg-surface); padding: 20px; border-radius: 12px; border: 1px solid var(--border-default); }
        .guideline-card h3 { color: var(--primary); margin-bottom: 10px; }
        .guideline-card p { color: var(--text-secondary); font-size: 14px; }
        .review-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
        .review-card { background: var(--bg-surface); padding: 20px; border-radius: 12px; position: relative; border: 1px solid var(--border-subtle); }
        .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; }
        .stars { color: var(--primary); margin-bottom: 10px; }
        .review-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); }
        .lottery-list { background: var(--bg-surface); border-radius: 12px; padding: 10px; }
        .lottery-item { display: flex; justify-content: space-between; padding: 12px; border-bottom: 1px solid var(--border-default); font-size: 14px; }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-item .user { color: var(--text-primary); }
        .lottery-item .game { color: var(--text-secondary); }
        .lottery-item .amount { color: var(--accent); font-weight: bold; }
        .provider-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .provider-item { background: var(--bg-surface); padding: 15px; text-align: center; border-radius: 8px; font-weight: bold; color: var(--primary); border: 1px solid var(--border-highlight); }
        .faq-section { margin-top: 40px; }
        .faq-item { background: var(--bg-surface); margin-bottom: 10px; border-radius: 10px; overflow: hidden; border: 1px solid var(--border-default); }
        .faq-question { padding: 15px; font-weight: bold; cursor: pointer; color: var(--primary); display: flex; justify-content: space-between; }
        .faq-answer { padding: 0 15px 15px; color: var(--text-secondary); font-size: 14px; }
        .security-section { background: var(--bg-surface); padding: 30px; border-radius: 15px; text-align: center; margin: 40px 0; border: 1px solid var(--border-default); }
        .security-badges { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 20px; }
        .security-badges i { font-size: 40px; color: var(--accent); }
        .security-text { font-size: 14px; color: var(--text-secondary); }
        .navigator { position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-surface); display: flex; justify-content: space-around; padding: 10px 0; border-top: 1px solid var(--border-default); z-index: 1000; }
        .nav-item { text-decoration: none; color: var(--text-secondary); display: flex; flex-direction: column; align-items: center; font-size: 12px; }
        .nav-item i { font-size: 20px; margin-bottom: 5px; }
        .nav-item:hover { color: var(--primary); }
        footer { background: var(--bg-surface); padding: 40px 20px; border-top: 1px solid var(--border-default); color: var(--text-secondary); }
        footer .contact-row { display: flex; justify-content: center; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 30px; }
        footer .contact-row a { color: var(--primary); text-decoration: none; font-size: 14px; }
        footer .links-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; text-align: center; margin-bottom: 30px; }
        footer .links-grid a { color: var(--text-secondary); text-decoration: none; font-size: 14px; }
        footer .copyright { text-align: center; font-size: 13px; border-top: 1px solid var(--border-default); padding-top: 20px; }
        @media (max-width: 768px) {
            .payment-grid { grid-template-columns: repeat(2, 1fr); }
            .links-grid { grid-template-columns: repeat(2, 1fr); }
        }