:root {
            --primary: #FFD700;
            --secondary: #C0C0C0;
            --accent: #FF4500;
            --highlight: #00FF00;
            --bg-main: #0B0B0B;
            --bg-surface: #1A1A1A;
            --bg-overlay: rgba(0, 0, 0, 0.85);
            --grad-start: #1A1A1A;
            --grad-end: #000000;
            --text-primary: #FFFFFF;
            --text-secondary: #B3B3B3;
            --text-muted: #666666;
            --text-inverse: #000000;
            --success: #28A745;
            --error: #DC3545;
            --warning: #FFC107;
            --info: #17A2B8;
            --border-light: #333333;
            --border-medium: #444444;
            --border-strong: #FFD700;
            --font-primary: 'Hind Siliguri', sans-serif;
            --font-secondary: 'Roboto', 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: linear-gradient(to right, var(--grad-start), var(--grad-end));
            border-bottom: 2px solid var(--border-strong);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        header .logo-section { display: flex; align-items: center; gap: 10px; }
        header img { width: 25px; height: 25px; border-radius: 50%; }
        header strong { font-size: 16px; font-weight: normal; color: var(--primary); }

        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 { padding-bottom: 80px; }

        .banner-container { width: 100%; cursor: pointer; }
        .banner-container img { 
            width: 100%; 
            aspect-ratio: 2/1; 
            object-fit: cover; 
            display: block; 
        }

        .reward-section {
            background: linear-gradient(45deg, #222, #111);
            padding: 30px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border-medium);
        }
        .reward-section h2 { color: var(--primary); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-main-reward { 
            background: var(--accent); 
            color: white; 
            padding: 15px 40px; 
            border-radius: 50px; 
            border: none; 
            font-size: 18px; 
            font-weight: bold; 
            cursor: pointer; 
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
        }

        .intro-card {
            margin: 20px;
            background: var(--bg-surface);
            padding: 25px;
            border-radius: 15px;
            border: 1px solid var(--border-light);
            text-align: center;
        }
        .intro-card h1 { color: var(--primary); font-size: 32px; margin-bottom: 10px; }
        .intro-card p { color: var(--text-secondary); font-size: 16px; }

        .section-title { 
            padding: 0 20px; 
            color: var(--primary); 
            margin: 30px 0 20px; 
            font-size: 22px; 
            border-left: 4px solid var(--primary); 
            padding-left: 15px; 
        }

        .game-grid { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 15px; 
            padding: 0 20px; 
        }
        .game-card { 
            background: var(--bg-surface); 
            border-radius: 12px; 
            overflow: hidden; 
            text-decoration: none; 
            border: 1px solid var(--border-light); 
            transition: transform 0.2s;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--primary); }
        .game-card img { 
            width: 100%; 
            aspect-ratio: 1/1; 
            object-fit: cover; 
            display: block; 
        }
        .game-card h3 { 
            padding: 10px; 
            font-size: 14px; 
            text-align: center; 
            color: var(--text-primary); 
        }

        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(4, 1fr); 
            gap: 10px; 
            padding: 0 20px; 
        }
        .payment-item { 
            background: var(--bg-surface); 
            padding: 15px 5px; 
            text-align: center; 
            border-radius: 8px; 
            font-size: 12px; 
            border: 1px solid var(--border-light); 
            color: var(--text-secondary); 
        }
        .payment-item i { display: block; color: var(--primary); margin-bottom: 8px; font-size: 18px; }

        .guidelines { padding: 0 20px; display: grid; gap: 15px; }
        .guide-card { 
            background: var(--bg-surface); 
            padding: 15px; 
            border-radius: 10px; 
            border-left: 3px solid var(--primary); 
        }
        .guide-card h3 { font-size: 16px; margin-bottom: 8px; color: var(--primary); }
        .guide-card p { font-size: 14px; color: var(--text-secondary); }

        .review-grid { padding: 0 20px; display: grid; gap: 15px; }
        .review-card { 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: 15px; 
            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(--primary); }
        .review-header .username { font-weight: bold; font-size: 15px; }
        .review-stars { color: var(--primary); font-size: 13px; margin-bottom: 10px; }
        .review-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); display: block; text-align: right; }

        .lottery-list { padding: 0 20px; display: grid; gap: 10px; }
        .lottery-item { 
            background: var(--bg-surface); 
            padding: 12px; 
            border-radius: 8px; 
            display: flex; 
            justify-content: space-between; 
            align-items: center; 
            border: 1px solid var(--border-medium); 
            font-size: 13px;
        }
        .lottery-item .user { color: var(--text-secondary); }
        .lottery-item .game { color: var(--text-primary); font-weight: 500; }
        .lottery-item .win { color: var(--highlight); font-weight: bold; }
        .lottery-item .time { color: var(--text-muted); font-size: 11px; }

        .provider-wall { 
            display: grid; 
            grid-template-columns: repeat(2, 1fr); 
            gap: 10px; 
            padding: 0 20px; 
        }
        .provider-box { 
            background: linear-gradient(135deg, #333, #111); 
            padding: 15px; 
            text-align: center; 
            border-radius: 8px; 
            font-weight: bold; 
            border: 1px solid var(--border-light); 
            color: var(--primary); 
        }

        .faq-section { padding: 0 20px; display: grid; gap: 15px; }
        .faq-card { background: var(--bg-surface); border-radius: 10px; overflow: hidden; border: 1px solid var(--border-light); }
        .faq-question { padding: 15px; background: #222; color: var(--primary); cursor: pointer; font-weight: 600; font-size: 15px; }
        .faq-answer { padding: 15px; font-size: 14px; color: var(--text-secondary); border-top: 1px solid var(--border-light); }

        .security-box { 
            margin: 20px; 
            background: var(--bg-surface); 
            padding: 20px; 
            border-radius: 15px; 
            text-align: center; 
            border: 1px dashed var(--primary); 
        }
        .security-box i { color: var(--highlight); font-size: 30px; margin-bottom: 10px; }
        .security-box h3 { font-size: 18px; margin-bottom: 10px; }
        .security-box p { font-size: 13px; color: var(--text-secondary); margin-bottom: 15px; }
        .security-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; font-size: 12px; }
        .security-links a { color: var(--primary); text-decoration: none; border: 1px solid var(--primary); padding: 3px 8px; border-radius: 4px; }

        .navigator { 
            position: fixed; 
            bottom: 0; 
            left: 0; 
            right: 0; 
            background: var(--bg-surface); 
            display: flex; 
            justify-content: space-around; 
            padding: 10px 0; 
            border-top: 2px solid var(--border-strong); 
            z-index: 2000; 
        }
        .nav-item { 
            text-decoration: none; 
            color: var(--text-secondary); 
            text-align: center; 
            font-size: 11px; 
            display: flex; 
            flex-direction: column; 
            gap: 5px; 
        }
        .nav-item i { font-size: 20px; color: var(--primary); }

        footer { 
            background: var(--grad-end); 
            padding: 30px 20px; 
            border-top: 1px solid var(--border-medium); 
            color: var(--text-muted); 
            font-size: 13px; 
            text-align: center; 
        }
        .footer-contact { margin-bottom: 20px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
        .contact-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; }
        .contact-links a { color: var(--text-secondary); text-decoration: none; }
        .footer-cols { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            text-align: left; 
            margin-bottom: 20px; 
        }
        .footer-cols a { color: var(--text-muted); text-decoration: none; display: block; margin-bottom: 5px; }
        .copyright { border-top: 1px solid var(--border-light); padding-top: 20px; font-size: 12px; }