:root {
            --brand-primary: #FFD700;
            --brand-secondary: #C0C0C0;
            --brand-accent: #FF4500;
            --bg-main: #0B0D17;
            --bg-surface: #1C1F2E;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --success: #00C853;
            --error: #FF1744;
            --warning: #FFC107;
            --info: #2196F3;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0B0;
            --text-muted: #707070;
            --text-inverse: #000000;
            --border-default: #2D3142;
            --border-strong: #4A4E61;
            --border-highlight: #FFD700;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-main);
            color: var(--text-primary);
            font-family: 'Hind Siliguri', sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-default);
            padding: 10px 15px;
            position: sticky;
            top: 0;
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .brand-container { display: flex; align-items: center; gap: 10px; }
        .brand-logo { width: 25px; height: 25px; border-radius: 50%; }
        .brand-name { font-size: 16px; font-weight: normal; }
        .auth-buttons { display: flex; gap: 10px; }
        .btn {
            padding: 6px 15px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 500;
            border: none;
            transition: 0.3s;
            font-family: 'Roboto', sans-serif;
        }
        .btn-login { background: var(--border-strong); color: var(--text-primary); }
        .btn-register { background: var(--brand-primary); color: var(--text-inverse); }
        .main-banner {
            width: 100%;
            aspect-ratio: 2/1;
            cursor: pointer;
            display: block;
            object-fit: cover;
        }
        .section-container { padding: 20px 15px; max-width: 1200px; margin: 0 auto; }
        .reward-card {
            background: linear-gradient(135deg, #1C1F2E 0%, #2D3142 100%);
            border: 2px solid var(--brand-primary);
            border-radius: 15px;
            padding: 25px;
            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: 20px; }
        .btn-large {
            background: var(--brand-accent);
            color: white;
            padding: 15px 30px;
            font-size: 18px;
            border-radius: 50px;
            display: inline-block;
            text-decoration: none;
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
        }
        .intro-card {
            background: var(--bg-surface);
            border-radius: 15px;
            padding: 20px;
            border-left: 5px solid var(--brand-primary);
            margin-bottom: 30px;
        }
        .intro-card h1 { font-size: 32px; color: var(--brand-primary); margin-bottom: 10px; }
        .grid-games {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            color: inherit;
            border: 1px solid var(--border-default);
            transition: transform 0.2s;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--brand-primary); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { padding: 10px; font-size: 14px; text-align: center; color: var(--text-primary); }
        .payment-section {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .payment-item {
            background: var(--bg-surface);
            padding: 15px;
            text-align: center;
            border-radius: 10px;
            border: 1px solid var(--border-default);
            font-size: 12px;
            color: var(--text-secondary);
        }
        .payment-item i { display: block; font-size: 20px; color: var(--brand-primary); margin-bottom: 5px; }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .article-card {
            background: var(--bg-surface);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            color: inherit;
            border: 1px solid var(--border-default);
        }
        .article-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .article-content { padding: 15px; }
        .article-content h3 { font-size: 16px; margin-bottom: 8px; color: var(--brand-primary); }
        .article-content p { font-size: 13px; color: var(--text-secondary); }
        .guidelines {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .guide-item {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: 10px;
            font-size: 13px;
            border-bottom: 3px solid var(--brand-primary);
        }
        .guide-item h3 { font-size: 15px; margin-bottom: 5px; color: var(--brand-primary); }
        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }
        .review-card {
            background: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--border-default);
        }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { color: var(--brand-primary); }
        .review-user { font-weight: bold; font-size: 14px; }
        .review-rating { color: var(--brand-primary); font-size: 12px; }
        .review-text { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 11px; color: var(--text-muted); display: block; }
        .lottery-list {
            background: var(--bg-surface);
            border-radius: 15px;
            padding: 15px;
            margin-bottom: 30px;
        }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-default);
            font-size: 13px;
        }
        .lottery-item:last-child { border-bottom: none; }
        .win-amount { color: var(--brand-primary); font-weight: bold; }
        .providers-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .provider-box {
            background: linear-gradient(45deg, #1C1F2E, #3D4259);
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            font-weight: bold;
            color: var(--brand-primary);
            border: 1px solid var(--border-highlight);
        }
        .faq-section { margin-bottom: 30px; }
        .faq-item {
            background: var(--bg-surface);
            margin-bottom: 10px;
            border-radius: 10px;
            padding: 15px;
            border: 1px solid var(--border-default);
        }
        .faq-item h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 10px; }
        .faq-item p { font-size: 14px; color: var(--text-secondary); }
        .security-box {
            background: #161925;
            border: 1px solid var(--border-strong);
            padding: 20px;
            border-radius: 15px;
            text-align: center;
            margin-bottom: 30px;
        }
        .security-box i { font-size: 30px; color: var(--success); margin-bottom: 10px; }
        .security-box p { font-size: 13px; color: var(--text-secondary); }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            padding: 10px 0;
            border-top: 2px solid var(--brand-primary);
            z-index: 2000;
        }
        .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: 5px; }
        .nav-item:hover { color: var(--brand-primary); }
        footer {
            background: var(--bg-surface);
            padding: 40px 15px 100px;
            border-top: 1px solid var(--border-default);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 13px;
            display: block;
            padding: 5px 0;
        }
        .copyright {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-default);
            padding-top: 20px;
        }
        h2 { font-size: 22px; color: var(--brand-primary); margin: 20px 0 15px; text-align: center; }