:root {
            --brand-primary: #FFD700;
            --brand-primary-dark: #B8860B;
            --brand-secondary: #C0C0C0;
            --brand-accent: #FF4500;
            --bg-main: #0F0F0F;
            --bg-surface: #1A1A1A;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0B0;
            --text-muted: #666666;
            --on-brand: #000000;
            --border-light: #333333;
            --border-medium: #444444;
            --border-strong: #FFD700;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: '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-color: var(--bg-surface);
            border-bottom: 2px solid var(--border-strong);
            padding: 0 15px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-logo { display: flex; align-items: center; gap: 8px; }
        .header-logo img { width: 25px; height: 25px; border-radius: 4px; }
        .header-logo strong { font-size: 16px; font-weight: normal; color: var(--brand-primary); }
        .header-btns { display: flex; gap: 10px; }
        .btn-login {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-medium);
            padding: 6px 15px;
            border-radius: 20px;
            cursor: pointer;
            font-size: 14px;
            transition: 0.3s;
        }
        .btn-register {
            background: linear-gradient(45deg, var(--brand-primary), var(--brand-primary-dark));
            color: var(--on-brand);
            border: none;
            padding: 6px 15px;
            border-radius: 20px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 600;
            transition: 0.3s;
        }
        main { padding: 15px; max-width: 800px; margin: 0 auto; padding-bottom: 100px; }
        .banner-container {
            width: 100%;
            aspect-ratio: 2 / 1;
            border-radius: 15px;
            overflow: hidden;
            margin-bottom: 20px;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,0,0,0.5);
        }
        .banner-container img { width: 100%; height: 100%; object-fit: cover; }
        .reward-card {
            background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
            border: 1px solid var(--border-medium);
            border-radius: 15px;
            padding: 20px;
            text-align: center;
            margin-bottom: 20px;
        }
        .reward-card h2 { color: var(--brand-primary); margin-bottom: 10px; font-size: 24px; }
        .reward-card p { color: var(--text-secondary); margin-bottom: 15px; font-size: 16px; }
        .btn-large {
            display: block;
            width: 100%;
            background: var(--brand-accent);
            color: #fff;
            text-decoration: none;
            padding: 15px;
            border-radius: 10px;
            font-weight: bold;
            font-size: 18px;
            border: none;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .btn-large:hover { transform: scale(1.02); }
        .intro-card {
            background: var(--bg-surface);
            border-left: 5px solid var(--brand-primary);
            padding: 20px;
            border-radius: 0 15px 15px 0;
            margin-bottom: 25px;
        }
        .intro-card h1 { font-size: 30px; color: var(--brand-primary); margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }
        .section-title {
            font-size: 22px;
            margin: 25px 0 15px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--brand-primary);
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 8px;
        }
        .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;
            border: 1px solid var(--border-light);
            transition: 0.3s;
        }
        .game-card:hover { border-color: var(--brand-primary); }
        .game-card img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
            background: #222;
        }
        .game-info { padding: 10px; text-align: center; }
        .game-info h3 { font-size: 14px; color: var(--text-primary); }
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 25px;
        }
        .payment-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-light);
            padding: 10px;
            border-radius: 8px;
            text-align: center;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .payment-item i { display: block; font-size: 18px; color: var(--brand-primary); margin-bottom: 5px; }
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .guide-item {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: 10px;
            border-bottom: 2px solid var(--border-light);
        }
        .guide-item h3 { color: var(--brand-primary); margin-bottom: 8px; font-size: 16px; }
        .guide-item p { color: var(--text-secondary); font-size: 14px; }
        .review-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .review-card {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--border-light);
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 24px; color: var(--brand-primary); }
        .review-user { font-weight: bold; font-size: 14px; }
        .review-rating { color: #ffc107; font-size: 12px; margin-left: auto; }
        .review-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .win-record-list {
            background: var(--bg-surface);
            border-radius: 12px;
            overflow: hidden;
        }
        .win-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-light);
            font-size: 13px;
        }
        .win-item:last-child { border-bottom: none; }
        .win-user { color: var(--text-secondary); }
        .win-game { font-weight: 500; }
        .win-amount { color: var(--brand-primary); font-weight: bold; }
        .win-time { color: var(--text-muted); font-size: 11px; }
        .provider-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .provider-item {
            background: linear-gradient(45deg, #1a1a1a, #2a2a2a);
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            border: 1px solid var(--border-medium);
            font-weight: bold;
            color: var(--brand-primary);
        }
        .faq-section {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
        .faq-item {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: 10px;
            border-left: 3px solid var(--brand-primary);
        }
        .faq-item h3 { font-size: 16px; margin-bottom: 10px; color: var(--text-primary); }
        .faq-item p { font-size: 14px; color: var(--text-secondary); }
        .safety-section {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
            text-align: center;
            border: 1px solid var(--border-medium);
        }
        .safety-badges {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 15px;
            flex-wrap: wrap;
        }
        .badge { color: var(--brand-primary); font-size: 14px; display: flex; align-items: center; gap: 5px; }
        .safety-text { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-surface);
            border-top: 2px solid var(--border-strong);
            display: flex;
            justify-content: space-around;
            align-items: center;
            height: 65px;
            z-index: 2000;
            padding-bottom: 10px;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            text-align: center;
            font-size: 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            cursor: pointer;
        }
        .nav-item i { font-size: 20px; color: var(--text-primary); }
        footer {
            background: var(--bg-surface);
            padding: 30px 15px;
            border-top: 1px solid var(--border-light);
            text-align: center;
        }
        .footer-contact {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 20px;
            flex-wrap: wrap;
            font-size: 14px;
        }
        .footer-contact a { color: var(--text-secondary); text-decoration: none; }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 20px;
            text-align: left;
        }
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 13px;
            display: block;
            padding: 4px 0;
        }
        .footer-bottom {
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 15px;
        }