:root {
            --primary: #FFD700;
            --primary-dark: #C5A000;
            --secondary: #1A1A1A;
            --accent: #E63946;
            --bg-main: #0F0F0F;
            --bg-surface: #1E1E1E;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #757575;
            --text-inverse: #000000;
            --success: #4CAF50;
            --warning: #FFC107;
            --error: #F44336;
            --info: #2196F3;
            --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', sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
            padding-bottom: 80px;
        }
        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);
        }
        header .logo-section { display: flex; align-items: center; gap: 10px; }
        header img { width: 25px; height: 25px; border-radius: 4px; }
        header strong { font-size: 16px; font-weight: 400; color: var(--primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn {
            padding: 8px 16px;
            border-radius: 8px;
            cursor: pointer;
            font-family: 'Hind Siliguri', sans-serif;
            font-weight: 500;
            border: none;
            transition: 0.3s;
            text-decoration: none;
            font-size: 14px;
        }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--primary); }
        .btn-login:hover { background: var(--primary); color: var(--text-inverse); }
        .btn-reg { background: var(--primary); color: var(--text-inverse); }
        .btn-reg:hover { background: var(--primary-dark); }
        
        main { max-width: 1200px; margin: 0 auto; padding: 20px; }
        .banner-container { width: 100%; margin-bottom: 20px; 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-section {
            background: linear-gradient(135deg, #1e1e1e 0%, #2a2a2a 100%);
            padding: 30px;
            border-radius: 15px;
            text-align: center;
            margin-bottom: 20px;
            border: 1px solid var(--border-medium);
        }
        .reward-section h2 { color: var(--primary); font-size: 24px; margin-bottom: 15px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-large {
            padding: 15px 40px;
            font-size: 20px;
            background: var(--primary);
            color: var(--text-inverse);
            border-radius: 50px;
            font-weight: 700;
            text-transform: uppercase;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
        }

        .intro-card {
            background: var(--bg-surface);
            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 { font-size: 18px; color: var(--text-secondary); }

        .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(--bg-surface);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            transition: transform 0.3s;
            border: 1px solid var(--border-light);
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--primary); }
        .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);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .payment-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
            gap: 15px;
            margin-bottom: 30px;
        }
        .payment-item {
            background: var(--bg-surface);
            padding: 15px;
            text-align: center;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 14px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .payment-item i { color: var(--primary); font-size: 24px; }

        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-light);
        }
        .guide-item h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guide-item p { color: var(--text-secondary); 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(--bg-surface);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-light);
        }
        .review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .review-header i { font-size: 30px; color: var(--primary); }
        .review-user { font-weight: 500; color: var(--text-primary); }
        .review-stars { color: var(--warning); font-size: 12px; 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: 15px;
            padding: 20px;
            margin-bottom: 30px;
        }
        .lottery-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
        }
        .lottery-item:last-child { border: none; }
        .lottery-user { color: var(--text-primary); }
        .lottery-game { color: var(--text-secondary); }
        .lottery-win { color: var(--primary); font-weight: bold; }
        .lottery-time { color: var(--text-muted); font-size: 12px; }

        .providers-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .provider-box {
            background: linear-gradient(45deg, var(--bg-surface), #252525);
            padding: 20px;
            text-align: center;
            border-radius: 8px;
            font-weight: bold;
            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;
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .faq-question {
            padding: 15px 20px;
            cursor: pointer;
            font-weight: 500;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-answer {
            padding: 0 20px 15px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        .security-section {
            background: var(--bg-surface);
            padding: 25px;
            border-radius: 15px;
            text-align: center;
            border: 1px solid var(--border-strong);
        }
        .security-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-top: 20px;
        }
        .security-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .security-item i { color: var(--success); }

        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            padding: 12px 0;
            border-top: 2px solid var(--primary);
            z-index: 2000;
            box-shadow: 0 -2px 10px rgba(0,0,0,0.5);
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 12px;
            gap: 4px;
        }
        .nav-item i { font-size: 20px; }
        .nav-item:hover { color: var(--primary); }

        footer {
            background: var(--bg-surface);
            padding: 40px 20px 100px;
            border-top: 1px solid var(--border-light);
            text-align: center;
        }
        .footer-contact {
            margin-bottom: 30px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 15px;
            color: var(--text-secondary);
        }
        .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;
            text-align: left;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 13px;
            transition: 0.3s;
        }
        .footer-links a:hover { color: var(--primary); }
        .footer-bottom {
            color: var(--text-muted);
            font-size: 12px;
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
        }

        @media (max-width: 600px) {
            .footer-links { grid-template-columns: repeat(2, 1fr); }
            .game-grid { gap: 10px; }
            .intro-card h1 { font-size: 24px; }
        }