:root {
            --primary: #D4AF37;
            --primary-hover: #B8860B;
            --secondary: #1A1A1A;
            --secondary-hover: #2D2D2D;
            --accent: #FFD700;
            --bg-main: #0F0F0F;
            --bg-surface: #1A1A1A;
            --bg-elevated: #262626;
            --bg-overlay: rgba(0, 0, 0, 0.85);
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #A0A0A0;
            --text-brand: #0F0F0F;
            --link: #D4AF37;
            --link-hover: #FFD700;
            --btn-bg: #D4AF37;
            --btn-text: #0F0F0F;
            --btn-bg-hover: #FFD700;
            --btn-text-hover: #000000;
            --border-def: #333333;
            --border-strong: #444444;
            --border-brand: #D4AF37;
            --font-headings: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
            --font-body: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
        }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-body);
            background-color: var(--bg-main);
            color: var(--text-primary);
            font-size: clamp(15px, 3.9vw, 16px);
            line-height: 1.65;
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            overflow-x: hidden;
        }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--bg-main);
            border-bottom: 1px solid var(--border-def);
        }
        .header-logo-link {
            display: flex;
            align-items: center;
            text-decoration: none;
            gap: 8px;
        }
        .header-logo-link strong {
            color: var(--text-primary);
            font-size: 16px;
            font-weight: normal;
        }
        .header-actions {
            display: flex;
            gap: 10px;
        }
        .btn-header {
            min-height: 44px;
            padding: 8px 16px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            font-family: var(--font-headings);
            font-weight: 600;
            transition: transform 0.2s, background-color 0.2s;
        }
        .btn-login { background-color: var(--bg-surface); color: var(--text-primary); border: 1px solid var(--border-strong); }
        .btn-register { background-color: var(--btn-bg); color: var(--btn-text); }
        .btn-header:hover { transform: translateY(-2px); }
        .btn-login:hover { background-color: var(--secondary-hover); }
        .btn-register:hover { background-color: var(--btn-bg-hover); }
        main { width: 100%; }
        .hero { margin-bottom: 2rem; }
        .hero-banner {
            display: block;
            width: 100%;
            aspect-ratio: 2/1;
            border-radius: 0;
            overflow: hidden;
        }
        .hero-banner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-content { padding: 20px 0; text-align: center; }
        h1 {
            font-family: var(--font-headings);
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin: 0 0 15px 0;
            color: var(--primary);
        }
        .hero-intro {
            color: var(--text-secondary);
            margin-bottom: 25px;
            font-size: 1.1rem;
        }
        .cta-main {
            display: block;
            width: 100%;
            min-height: 56px;
            background-color: var(--btn-bg);
            color: var(--btn-text);
            text-align: center;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.2rem;
            border-radius: 12px;
            transition: background-color 0.3s;
        }
        .cta-main:hover { background-color: var(--btn-bg-hover); }
        h2 {
            font-family: var(--font-headings);
            font-size: clamp(1.3rem, 5.2vw, 1.8rem);
            line-height: 1.25;
            margin: 2rem 0 1.5rem 0;
            color: var(--primary);
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }
        h3 {
            font-family: var(--font-headings);
            font-size: clamp(1.05rem, 4.2vw, 1.25rem);
            line-height: 1.3;
            margin: 0 0 10px 0;
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 2rem;
        }
        .game-card {
            text-decoration: none;
            background-color: var(--bg-surface);
            border-radius: 16px;
            overflow: hidden;
            transition: transform 0.3s;
            border: 1px solid var(--border-def);
        }
        .game-card:hover { transform: scale(1.03); border-color: var(--primary); }
        .game-card img {
            width: 100%;
            aspect-ratio: 1/1;
            object-fit: cover;
        }
        .game-card h3 {
            padding: 12px;
            text-align: center;
            color: var(--text-primary);
            font-size: 0.95rem;
            margin: 0;
        }
        .facts-table {
            width: 100%;
            border-collapse: collapse;
            background-color: var(--bg-surface);
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 1rem;
        }
        .facts-table td {
            padding: 12px 15px;
            border-bottom: 1px solid var(--border-def);
        }
        .facts-label {
            font-weight: 600;
            color: var(--primary);
            width: 40%;
        }
        .freshness-notice {
            font-style: italic;
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 10px;
            display: block;
        }
        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 10px;
            padding: 10px 0 20px 0;
            scrollbar-width: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            white-space: nowrap;
            background-color: var(--bg-elevated);
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: 20px;
            text-decoration: none;
            font-size: 0.9rem;
            border: 1px solid var(--border-strong);
        }
        .toc-link:hover { color: var(--primary); border-color: var(--primary); }
        .announcement-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-bottom: 2rem;
        }
        .announcement-item {
            background-color: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
            border-left: 3px solid var(--primary);
        }
        .announcement-item i { color: var(--primary); margin-right: 10px; }
        .announcement-date {
            display: block;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 10px;
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 2rem;
        }
        .cat-tile {
            text-decoration: none;
            background-color: var(--bg-surface);
            padding: 20px 15px;
            border-radius: 16px;
            text-align: center;
            border: 1px solid var(--border-def);
            transition: background-color 0.3s;
        }
        .cat-tile:hover { background-color: var(--bg-elevated); }
        .cat-tile i { font-size: 2rem; color: var(--primary); margin-bottom: 10px; display: block; }
        .cat-tile span { display: block; color: var(--text-primary); font-weight: 600; margin-bottom: 5px; }
        .cat-tile p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }
        .usp-bar {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-bottom: 2rem;
        }
        .usp-tile {
            display: flex;
            align-items: center;
            gap: 15px;
            background-color: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
        }
        .usp-tile i { font-size: 1.5rem; color: var(--primary); width: 30px; text-align: center; }
        .usp-text h3 { margin: 0; font-size: 1rem; color: var(--text-primary); }
        .usp-text p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }
        .bonus-card {
            background-color: var(--bg-surface);
            padding: 20px;
            border-radius: 16px;
            margin-bottom: 15px;
            border: 1px solid var(--border-strong);
        }
        .bonus-card h3 { color: var(--primary); }
        .bonus-btn {
            display: inline-block;
            margin-top: 15px;
            padding: 10px 20px;
            background-color: var(--btn-bg);
            color: var(--btn-text);
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
        }
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 2rem;
        }
        .pay-card {
            background-color: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-def);
        }
        .pay-card i { font-size: 1.8rem; color: var(--primary); margin-bottom: 10px; display: block; }
        .pay-card h3 { font-size: 1rem; margin-bottom: 5px; }
        .pay-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }
        .step-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 2rem;
        }
        .step-item {
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }
        .step-badge {
            background-color: var(--primary);
            color: var(--bg-main);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .step-content h3 { margin: 0 0 8px 0; }
        .step-content h3 a { color: var(--primary); text-decoration: none; }
        .step-content p { margin: 0; color: var(--text-secondary); font-size: 0.9rem; }
        .provider-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 2rem;
        }
        .provider-card {
            background-color: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-def);
        }
        .provider-card h3 { font-size: 1.1rem; color: var(--text-primary); margin-bottom: 5px; }
        .provider-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }
        .guide-item {
            background-color: var(--bg-surface);
            padding: 15px;
            border-radius: 12px;
            margin-bottom: 15px;
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; display: block; }
        .vip-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 2rem;
        }
        .vip-card {
            background-color: var(--bg-elevated);
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-strong);
        }
        .vip-card h3 { color: var(--accent); }
        .faq-item {
            background-color: var(--bg-surface);
            margin-bottom: 10px;
            border-radius: 12px;
            overflow: hidden;
        }
        .faq-item summary {
            padding: 15px;
            cursor: pointer;
            font-weight: 600;
            background-color: var(--bg-surface);
            color: var(--text-primary);
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-item summary::after { content: '\f054'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: var(--primary); }
        .faq-item p { padding: 0 15px 15px 15px; color: var(--text-secondary); margin: 0; }
        .trust-card {
            background-color: var(--bg-surface);
            padding: 20px;
            border-radius: 16px;
            border: 1px solid var(--border-brand);
            margin-top: 20px;
        }
        footer {
            background-color: var(--bg-surface);
            padding: 30px 0;
            margin-top: 3rem;
            border-top: 1px solid var(--border-def);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            max-width: 600px;
            margin: 0 auto 20px auto;
            text-align: left;
        }
        .footer-link {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
        }
        .footer-link:hover { color: var(--primary); }
        .footer-legal {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
            padding-inline: 20px;
        }
        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background-color: var(--bg-surface);
            display: flex;
            justify-content: space-around;
            align-items: center;
            border-top: 1px solid var(--border-def);
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 2000;
        }
        .nav-item {
            text-decoration: none;
            color: var(--text-muted);
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 0.75rem;
            gap: 4px;
        }
        .nav-item i { font-size: 1.2rem; }
        .nav-item:hover { color: var(--primary); }
        
        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .category-grid { grid-template-columns: repeat(3, 1fr); }
            .usp-bar { flex-direction: row; flex-wrap: wrap; }
            .usp-tile { flex: 1 1 calc(50% - 15px); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .provider-grid { grid-template-columns: repeat(4, 1fr); }
            .vip-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { display: none; }
        }
        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .usp-tile { flex: 1; }
        }