:root {
            --primary: #FFD700;
            --primary-hover: #FFC107;
            --secondary: #C62828;
            --accent: #00C853;
            --bg-main: #121212;
            --bg-surface: #1E1E1E;
            --bg-elevated: #2C2C2C;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0B0;
            --text-muted: #757575;
            --border-light: #333333;
            --border-medium: #444444;
            --border-strong: #FFD700;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-main);
            color: var(--text-primary);
            font-family: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-surface);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--primary);
        }
        .logo-area { display: flex; align-items: center; gap: 10px; }
        .logo-area img { width: 25px; height: 25px; border-radius: 4px; }
        .logo-area strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        .auth-btns { display: flex; gap: 10px; }
        .btn-auth {
            padding: 6px 15px;
            border-radius: 5px;
            cursor: pointer;
            border: none;
            font-weight: 500;
            font-family: inherit;
            transition: 0.3s;
        }
        .btn-login { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
        .btn-login:hover { background: var(--primary); color: var(--bg-main); }
        .btn-reg { background: var(--primary); color: var(--bg-main); }
        .btn-reg:hover { background: var(--primary-hover); }
        main { max-width: 1000px; margin: 0 auto; padding: 20px 15px; }
        .hero-banner {
            width: 100%;
            aspect-ratio: 2/1;
            border-radius: 15px;
            overflow: hidden;
            cursor: pointer;
            margin-bottom: 20px;
            border: 2px solid var(--border-medium);
        }
        .hero-banner img { width: 100%; height: 100%; object-fit: cover; }
        .reward-card {
            background: linear-gradient(135deg, #C62828, #8E0000);
            padding: 30px;
            border-radius: 20px;
            text-align: center;
            margin-bottom: 25px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
        }
        .reward-card h2 { font-size: 24px; margin-bottom: 15px; }
        .reward-card p { color: #ffebee; margin-bottom: 20px; font-size: 16px; }
        .btn-large {
            background: var(--primary);
            color: var(--bg-main);
            padding: 15px 40px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 18px;
            border: none;
            cursor: pointer;
            transition: 0.3s;
            text-transform: uppercase;
        }
        .btn-large:hover { transform: scale(1.05); background: var(--primary-hover); }
        .intro-card {
            background: var(--bg-surface);
            padding: 25px;
            border-radius: 20px;
            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(--text-secondary); font-size: 16px; }
        .section-title {
            font-size: 24px;
            margin: 30px 0 20px;
            padding-left: 10px;
            border-left: 4px solid var(--primary);
            color: var(--text-primary);
        }
        .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: 0.3s;
            border: 1px solid var(--border-light);
        }
        .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: 12px;
            font-size: 16px;
            text-align: center;
            color: var(--text-primary);
        }
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .payment-item {
            background: var(--bg-elevated);
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            font-size: 13px;
            border: 1px solid var(--border-medium);
        }
        .payment-item i { display: block; font-size: 24px; color: var(--primary); margin-bottom: 8px; }
        .guideline-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-bottom: 30px;
        }
        .guideline-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
            border-bottom: 2px solid var(--border-medium);
        }
        .guideline-item h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guideline-item p { color: var(--text-secondary); font-size: 14px; }
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .comment-card {
            background: var(--bg-elevated);
            padding: 15px;
            border-radius: 15px;
            border: 1px solid var(--border-light);
        }
        .comment-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .comment-header i { font-size: 24px; color: var(--primary); }
        .comment-user { font-weight: 600; font-size: 14px; }
        .comment-stars { color: var(--primary); font-size: 12px; margin-bottom: 10px; }
        .comment-text { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; line-height: 1.6; }
        .comment-date { font-size: 11px; color: var(--text-muted); text-align: right; }
        .win-record {
            background: var(--bg-surface);
            border-radius: 15px;
            overflow: hidden;
            margin-bottom: 30px;
        }
        .win-item {
            display: flex;
            justify-content: space-between;
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
        }
        .win-item:last-child { border: none; }
        .win-user { color: var(--text-secondary); }
        .win-game { font-weight: 500; }
        .win-amount { color: var(--accent); font-weight: 700; }
        .win-time { color: var(--text-muted); font-size: 12px; }
        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .provider-item {
            background: linear-gradient(45deg, var(--bg-elevated), var(--bg-surface));
            padding: 15px;
            border-radius: 10px;
            text-align: center;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--border-medium);
        }
        .faq-section { margin-bottom: 30px; }
        .faq-item {
            background: var(--bg-surface);
            margin-bottom: 10px;
            border-radius: 10px;
            padding: 15px;
            border: 1px solid var(--border-light);
        }
        .faq-item h3 { font-size: 16px; color: var(--primary); margin-bottom: 10px; }
        .faq-item p { color: var(--text-secondary); font-size: 14px; }
        .safety-section {
            background: var(--bg-elevated);
            padding: 20px;
            border-radius: 20px;
            text-align: center;
            margin-bottom: 30px;
            border: 1px dashed var(--primary);
        }
        .safety-section i { font-size: 30px; color: var(--accent); margin-bottom: 10px; }
        .safety-section p { font-size: 14px; color: var(--text-secondary); margin-bottom: 15px; }
        .safety-links a { color: var(--primary); margin: 0 10px; font-size: 13px; text-decoration: none; }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding: 10px 0;
            border-top: 2px solid var(--primary);
            z-index: 1001;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            text-align: center;
            font-size: 12px;
            flex: 1;
        }
        .nav-item i { display: block; font-size: 20px; margin-bottom: 4px; }
        footer {
            background: var(--bg-surface);
            padding: 40px 20px 100px;
            text-align: center;
            border-top: 1px solid var(--border-medium);
        }
        .footer-contact { margin-bottom: 30px; }
        .footer-contact p { margin-bottom: 15px; font-weight: 600; }
        .footer-links-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
            text-align: left;
        }
        .footer-links-wrap a {
            display: block;
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            margin-bottom: 8px;
        }
        .footer-links-wrap a:hover { color: var(--primary); }
        .copyright { color: var(--text-muted); font-size: 12px; border-top: 1px solid var(--border-light); padding-top: 20px; }
        @media (min-width: 768px) {
            .payment-grid { grid-template-columns: repeat(8, 1fr); }
            .comment-grid { grid-template-columns: repeat(3, 1fr); }
            .provider-wall { grid-template-columns: repeat(4, 1fr); }
            .guideline-grid { grid-template-columns: repeat(2, 1fr); }
        }