:root {
            --brand-primary: #FFD700;
            --brand-secondary: #C0C0C0;
            --brand-accent: #FF4500;
            --brand-highlight: #FFB800;
            --bg-primary: #0B0E11;
            --bg-secondary: #1E2329;
            --bg-tertiary: #2B3139;
            --bg-overlay: rgba(0, 0, 0, 0.7);
            --text-primary: #FFFFFF;
            --text-secondary: #B7B7B7;
            --text-muted: #848E9C;
            --text-on-brand: #000000;
            --semantic-success: #0ECB80;
            --semantic-warning: #F0B90B;
            --semantic-danger: #F6465D;
            --semantic-info: #1888FF;
            --border-light: #474D57;
            --border-medium: #363C44;
            --border-dark: #2B3139;
            --font-primary: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-secondary: 'Roboto', sans-serif;
            --font-numeric: 'Oswald', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
        body { background-color: var(--bg-primary); color: var(--text-primary); font-family: var(--font-primary); line-height: 1.5; overflow-x: hidden; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
        ul { list-style: none; }
        header { 
            background-color: var(--bg-secondary); 
            height: 60px; 
            display: flex; 
            align-items: center; 
            justify-content: space-between; 
            padding: 0 15px; 
            position: sticky; 
            top: 0; 
            z-index: 1000; 
            border-bottom: 2px solid var(--brand-primary);
        }
        header .logo-area { display: flex; align-items: center; gap: 10px; }
        header .logo-area img { width: 25px; height: 25px; border-radius: 4px; }
        header .logo-area strong { font-size: 16px; font-weight: normal; color: var(--text-primary); }
        header .auth-buttons { display: flex; gap: 10px; }
        .btn-login { background: transparent; color: var(--text-primary); border: 1px solid var(--border-light); padding: 6px 15px; border-radius: 5px; font-size: 14px; cursor: pointer; }
        .btn-register { background: var(--brand-primary); color: var(--text-on-brand); border: none; padding: 6px 15px; border-radius: 5px; font-size: 14px; font-weight: 600; cursor: pointer; }
        main { padding-bottom: 80px; }
        .banner-container { width: 100%; aspect-ratio: 2/1; overflow: hidden; cursor: pointer; }
        .banner-container img { width: 100%; height: 100%; object-fit: cover; }
        .section-container { padding: 20px 15px; }
        .promo-card { 
            background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary)); 
            border-radius: 15px; 
            padding: 25px; 
            text-align: center; 
            border: 1px solid var(--brand-highlight);
            margin-bottom: 20px;
        }
        .promo-card h2 { color: var(--brand-primary); font-size: 24px; margin-bottom: 15px; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 20px; font-size: 16px; }
        .btn-bonus { 
            background: linear-gradient(to right, var(--brand-accent), var(--brand-highlight)); 
            color: var(--text-on-brand); 
            border: none; 
            padding: 12px 30px; 
            border-radius: 30px; 
            font-weight: bold; 
            font-size: 18px; 
            cursor: pointer; 
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
        }
        .game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 30px; }
        .game-card { 
            background: var(--bg-secondary); 
            border-radius: 12px; 
            overflow: hidden; 
            border: 1px solid var(--border-medium);
            transition: transform 0.2s;
        }
        .game-card:active { transform: scale(0.95); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 { font-size: 15px; padding: 10px; text-align: center; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .section-title { font-size: 22px; color: var(--brand-primary); margin-bottom: 20px; border-left: 4px solid var(--brand-primary); padding-left: 10px; }
        .intro-card { 
            background: var(--bg-secondary); 
            padding: 25px; 
            border-radius: 15px; 
            border: 1px solid var(--border-light); 
            margin: 20px 0;
            text-align: center;
        }
        .intro-card h1 { color: var(--brand-primary); font-size: 32px; margin-bottom: 15px; }
        .intro-card p { color: var(--text-secondary); font-size: 15px; line-height: 1.8; }
        .payment-grid { 
            display: grid; 
            grid-template-columns: repeat(4, 1fr); 
            gap: 10px; 
            margin-bottom: 30px; 
        }
        .payment-item { 
            background: var(--bg-tertiary); 
            padding: 15px 5px; 
            border-radius: 10px; 
            text-align: center; 
            font-size: 12px; 
            color: var(--text-secondary); 
            border: 1px solid var(--border-dark);
        }
        .payment-item i { display: block; font-size: 20px; color: var(--brand-primary); margin-bottom: 8px; }
        .guidelines-grid { display: grid; gap: 15px; }
        .guideline-item { background: var(--bg-secondary); padding: 15px; border-radius: 10px; border-left: 3px solid var(--brand-highlight); }
        .guideline-item h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 8px; }
        .guideline-item p { font-size: 14px; color: var(--text-secondary); }
        .review-grid { display: grid; gap: 15px; }
        .review-card { background: var(--bg-tertiary); padding: 15px; border-radius: 12px; border: 1px solid var(--border-medium); }
        .review-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .review-header i { font-size: 24px; color: var(--brand-secondary); }
        .review-header .user-name { font-weight: 600; font-size: 15px; }
        .review-stars { color: var(--brand-primary); font-size: 13px; margin-bottom: 8px; }
        .review-content { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
        .review-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .lottery-list { background: var(--bg-secondary); border-radius: 15px; overflow: hidden; }
        .lottery-item { 
            display: flex; 
            justify-content: space-between; 
            align-items: center; 
            padding: 12px 15px; 
            border-bottom: 1px solid var(--border-dark); 
            font-size: 14px; 
        }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-user { color: var(--text-primary); font-weight: 500; }
        .lottery-game { color: var(--text-muted); font-size: 13px; }
        .lottery-amount { color: var(--semantic-success); font-weight: bold; font-family: var(--font-numeric); }
        .provider-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .provider-item { 
            background: var(--bg-tertiary); 
            padding: 15px; 
            text-align: center; 
            border-radius: 10px; 
            font-weight: 600; 
            color: var(--brand-primary); 
            border: 1px solid var(--border-medium);
        }
        .faq-grid { display: grid; gap: 15px; }
        .faq-item { background: var(--bg-secondary); padding: 15px; border-radius: 10px; border: 1px solid var(--border-dark); }
        .faq-item h3 { font-size: 16px; color: var(--brand-primary); margin-bottom: 10px; }
        .faq-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        .navigator { 
            position: fixed; 
            bottom: 0; 
            left: 0; 
            right: 0; 
            height: 65px; 
            background: var(--bg-secondary); 
            display: flex; 
            justify-content: space-around; 
            align-items: center; 
            border-top: 1px solid var(--border-light); 
            z-index: 2000; 
            padding-bottom: env(safe-area-inset-bottom);
        }
        .nav-item { text-align: center; color: var(--text-muted); font-size: 12px; }
        .nav-item i { display: block; font-size: 20px; margin-bottom: 4px; }
        .nav-item:hover { color: var(--brand-primary); }
        footer { 
            background-color: var(--bg-secondary); 
            padding: 30px 15px; 
            border-top: 1px solid var(--border-medium); 
            font-family: var(--font-primary);
        }
        .footer-contact { 
            display: flex; 
            flex-wrap: wrap; 
            justify-content: center; 
            gap: 15px; 
            margin-bottom: 25px; 
            font-size: 14px; 
            border-bottom: 1px solid var(--border-dark);
            padding-bottom: 20px;
        }
        .footer-contact a { color: var(--text-secondary); }
        .footer-links { 
            display: grid; 
            grid-template-columns: repeat(3, 1fr); 
            gap: 10px; 
            margin-bottom: 30px; 
        }
        .footer-links a { color: var(--text-muted); font-size: 13px; display: block; padding: 5px 0; }
        .footer-security { 
            text-align: center; 
            padding-top: 20px; 
            border-top: 1px solid var(--border-dark); 
            color: var(--text-muted); 
            font-size: 12px; 
        }
        .security-badges { display: flex; justify-content: center; gap: 15px; margin-bottom: 15px; font-size: 24px; color: var(--brand-secondary); }
        @media (min-width: 768px) {
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(8, 1fr); }
            .provider-grid { grid-template-columns: repeat(4, 1fr); }
        }