:root {
            --primary: #FFD700;
            --primary-dark: #B8860B;
            --secondary: #1A1A1A;
            --accent: #FF4500;
            --bg-main: #0F0F0F;
            --bg-surface: #1E1E1E;
            --bg-overlay: rgba(0, 0, 0, 0.8);
            --text-heading: #FFFFFF;
            --text-body: #E0E0E0;
            --text-muted: #A0A0A0;
            --text-inverse: #000000;
            --success: #00C853;
            --error: #FF1744;
            --warning: #FFEA00;
            --info: #2979FF;
            --border-subtle: #333333;
            --border-strong: #444444;
            --border-highlight: #FFD700;
            --font-primary: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-secondary: 'Poppins', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
        body {
            background-color: var(--bg-main);
            color: var(--text-body);
            font-family: var(--font-primary);
            line-height: 1.5;
            overflow-x: hidden;
        }
        header {
            background-color: var(--bg-surface);
            border-bottom: 2px solid var(--primary);
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 60px;
        }
        .header-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
        .header-logo img { width: 25px; height: 25px; object-fit: contain; }
        .header-logo strong { color: var(--text-heading); font-size: 16px; font-weight: normal; }
        .header-auth { display: flex; gap: 10px; }
        .btn-auth {
            padding: 8px 16px;
            border-radius: 5px;
            font-family: var(--font-secondary);
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: 0.3s;
            font-size: 14px;
        }
        .btn-login { background-color: transparent; color: var(--primary); border: 1px solid var(--primary); }
        .btn-register { background-color: var(--primary); color: var(--text-inverse); }
        .btn-register:hover, .btn-login:hover { opacity: 0.8; transform: translateY(-2px); }
        main { padding-bottom: 80px; }
        .banner-container { width: 100%; margin-bottom: 20px; }
        .banner-container img {
            width: 100%;
            aspect-ratio: 2/1;
            object-fit: cover;
            cursor: pointer;
            display: block;
        }
        .reward-section {
            background: linear-gradient(135deg, var(--secondary), #2a2a2a);
            margin: 0 15px 20px;
            padding: 25px;
            border-radius: 15px;
            text-align: center;
            border: 1px solid var(--border-strong);
        }
        .reward-section h2 { color: var(--primary); margin-bottom: 15px; font-size: 24px; }
        .reward-section p { margin-bottom: 20px; font-size: 16px; color: var(--text-body); }
        .btn-big {
            background-color: var(--accent);
            color: white;
            padding: 15px 30px;
            border-radius: 50px;
            font-weight: bold;
            font-size: 18px;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
            transition: 0.3s;
        }
        .btn-big:hover { transform: scale(1.05); background-color: #ff5722; }
        .intro-card {
            background-color: var(--bg-surface);
            margin: 20px 15px;
            padding: 25px;
            border-radius: 20px;
            border-left: 5px solid var(--primary);
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .intro-card h1 { color: var(--primary); font-size: 32px; margin-bottom: 15px; }
        .intro-card p { color: var(--text-body); line-height: 1.8; }
        .section-title {
            text-align: center;
            color: var(--text-heading);
            margin: 30px 0 20px;
            font-size: 24px;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: var(--primary);
            margin: 10px auto;
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            padding: 0 15px;
        }
        .game-card {
            background-color: var(--bg-surface);
            border-radius: 12px;
            overflow: hidden;
            text-decoration: none;
            transition: 0.3s;
            border: 1px solid var(--border-subtle);
        }
        .game-card:hover { border-color: var(--primary); transform: translateY(-5px); }
        .game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
        .game-card h3 {
            padding: 12px;
            font-size: 14px;
            text-align: center;
            color: var(--text-heading);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .payment-section {
            background-color: var(--bg-surface);
            margin: 30px 15px;
            padding: 20px;
            border-radius: 15px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
            text-align: center;
        }
        .payment-item { display: flex; flex-direction: column; align-items: center; gap: 8px; }
        .payment-item i { color: var(--primary); font-size: 20px; }
        .payment-item span { font-size: 12px; color: var(--text-muted); }
        .guideline-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            padding: 0 15px;
        }
        .guideline-card {
            background-color: var(--bg-surface);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-subtle);
        }
        .guideline-card h3 { color: var(--primary); margin-bottom: 10px; font-size: 18px; }
        .guideline-card p { font-size: 14px; color: var(--text-muted); }
        .comment-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            padding: 0 15px;
        }
        .comment-card {
            background-color: var(--bg-surface);
            padding: 20px;
            border-radius: 15px;
            border: 1px solid var(--border-subtle);
        }
        .comment-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .comment-header i { font-size: 30px; color: var(--primary); }
        .comment-header .user-info { display: flex; flex-direction: column; }
        .comment-header .username { color: var(--text-heading); font-weight: 600; font-size: 15px; }
        .comment-header .rating { color: var(--warning); font-size: 12px; }
        .comment-body { font-size: 14px; color: var(--text-body); margin-bottom: 10px; }
        .comment-date { font-size: 12px; color: var(--text-muted); text-align: right; }
        .lottery-list {
            background-color: var(--bg-surface);
            margin: 20px 15px;
            border-radius: 15px;
            overflow: hidden;
        }
        .lottery-item {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 13px;
            align-items: center;
        }
        .lottery-item:last-child { border-bottom: none; }
        .lottery-item .win-amount { color: var(--primary); font-weight: bold; }
        .provider-wall {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            padding: 0 15px;
        }
        .provider-box {
            background: linear-gradient(45deg, var(--secondary), #333);
            padding: 20px;
            text-align: center;
            border-radius: 10px;
            color: var(--primary);
            font-weight: bold;
            border: 1px solid var(--border-strong);
        }
        .faq-section { padding: 0 15px; display: grid; gap: 15px; }
        .faq-card {
            background-color: var(--bg-surface);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-subtle);
        }
        .faq-card h3 { color: var(--primary); font-size: 16px; margin-bottom: 10px; }
        .faq-card p { font-size: 14px; color: var(--text-body); }
        .security-section {
            background-color: var(--bg-surface);
            margin: 30px 15px;
            padding: 25px;
            border-radius: 15px;
            text-align: center;
            border: 2px dashed var(--border-strong);
        }
        .security-icons { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; font-size: 30px; color: var(--primary); }
        .security-notice { font-size: 14px; color: var(--text-muted); margin-bottom: 15px; }
        .navigator {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 65px;
            background-color: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            align-items: center;
            border-top: 2px solid var(--primary);
            z-index: 2000;
            box-shadow: 0 -5px 20px rgba(0,0,0,0.5);
        }
        .nav-item {
            text-decoration: none;
            display: flex;
            flex-direction: column;
            align-items: center;
            color: var(--text-muted);
            font-size: 12px;
            gap: 5px;
            transition: 0.3s;
        }
        .nav-item i { font-size: 20px; }
        .nav-item:hover { color: var(--primary); }
        footer {
            background-color: var(--bg-surface);
            padding: 30px 20px;
            border-top: 1px solid var(--border-subtle);
            text-align: center;
        }
        .footer-contact {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            margin-bottom: 25px;
            font-size: 14px;
        }
        .footer-contact a { color: var(--primary); text-decoration: none; }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 25px;
            text-align: left;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            transition: 0.3s;
        }
        .footer-links a:hover { color: var(--primary); }
        .copyright {
            color: var(--text-muted);
            font-size: 12px;
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
        }