:root {
            --brand-primary: #005B96;
            --brand-primary-hover: #0074C2;
            --brand-secondary: #C0C0C0;
            --brand-accent: #00F5FF;
            --bg-main: #050B1A;
            --bg-surface: #0B152B;
            --bg-elevated: #12203D;
            --text-primary: #E6EEFF;
            --text-secondary: #B0C4DE;
            --text-muted: #778899;
            --border-default: #1C2C52;
            --border-brand: #00F5FF;
            --btn-bg: #00F5FF;
            --btn-text: #050B1A;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 24px;
            --radius-pill: 9999px;
            --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --glow-cyan: 0 0 15px rgba(0, 245, 255, 0.5);
        }

        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: 'Noto Sans Bengali', 'Manrope', sans-serif;
            font-size: clamp(15px, 3.9vw, 16px);
            line-height: 1.65;
            padding-inline: 14px;
            padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
            background-color: var(--bg-main);
            color: var(--text-primary);
            overflow-x: hidden;
        }
        img, video { max-width: 100%; height: auto; display: block; }
        a { color: var(--brand-accent); text-decoration: none; transition: color 0.2s; }
        a:hover { color: #FFFFFF; }
        
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-default);
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 11, 26, 0.8);
            backdrop-filter: blur(10px);
        }
        .header-logo-link { display: flex; align-items: center; gap: 8px; }
        .header-logo-link strong { font-size: 16px; font-weight: 400; color: var(--text-primary); }
        .header-actions { display: flex; gap: 10px; }
        
        .btn-action {
            min-height: 44px;
            min-inline-size: 44px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            border: 1px solid var(--border-brand);
            background: transparent;
            color: var(--text-primary);
            transition: all 0.3s;
        }
        .btn-action-primary { background: var(--btn-bg); color: var(--btn-text); border-color: var(--btn-bg); }
        .btn-action-primary:hover { background: #FFFFFF; }

        main { width: 100%; }
        
        .hero-section {
            padding: 40px 0;
            text-align: center;
            background: radial-gradient(circle at center, #12203D 0%, #050B1A 100%);
        }
        .hero-section h1 {
            font-family: 'Hind Siliguri', sans-serif;
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-primary);
        }
        .hero-intro {
            max-width: 700px;
            margin: 0 auto 30px;
            color: var(--text-secondary);
        }
        .hero-cta-main {
            display: block;
            width: 100%;
            max-width: 400px;
            margin: 0 auto 24px;
            padding: 16px;
            background: linear-gradient(180deg, #00F5FF 0%, #00D1E0 100%);
            color: var(--btn-text);
            font-weight: 700;
            border-radius: var(--radius-pill);
            font-size: 1.2rem;
            box-shadow: var(--glow-cyan);
        }
        .hero-tags {
            display: flex;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .hero-tag {
            padding: 4px 12px;
            background: rgba(0, 245, 255, 0.1);
            border: 1px solid var(--border-brand);
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            color: var(--brand-accent);
        }

        .banner-link { display: block; line-height: 0; }
        .banner-img { aspect-ratio: 2 / 1; width: 100%; object-fit: cover; }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            padding: 30px 0;
        }
        .cat-tile {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 20px;
            border-radius: var(--radius-md);
            text-align: center;
            transition: transform 0.2s, border-color 0.2s;
        }
        .cat-tile:hover { transform: translateY(-5px); border-color: var(--brand-accent); }
        .cat-tile i { font-size: 2rem; color: var(--brand-accent); margin-bottom: 12px; }
        .cat-tile span { display: block; font-weight: 600; font-size: 1.1rem; margin-bottom: 8px; color: var(--text-primary); }
        .cat-tile p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            padding-bottom: 30px;
        }
        .game-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-default);
            transition: border-color 0.3s;
        }
        .game-card:hover { border-color: var(--brand-accent); }
        .game-card img { aspect-ratio: 1 / 1; width: 100%; object-fit: cover; }
        .game-card h3 {
            font-size: 1rem;
            padding: 12px;
            margin: 0;
            text-align: center;
            color: var(--text-primary);
        }

        .facts-section { padding: 30px 0; }
        .facts-freshness { font-style: italic; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 15px; display: block; }
        .facts-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .facts-table tr { border-bottom: 1px solid var(--border-default); }
        .facts-table td { padding: 12px 15px; vertical-align: middle; }
        .facts-table td:first-child { font-weight: 600; color: var(--text-secondary); width: 40%; }
        .facts-table td:last-child { color: var(--text-primary); }
        .facts-footer-link { display: block; text-align: center; margin-top: 15px; font-size: 0.85rem; color: var(--text-muted); }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 10px;
            padding: 15px 0;
            scrollbar-width: none;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            white-space: nowrap;
            padding: 8px 16px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .toc-link:hover { background: var(--border-brand); color: var(--bg-main); }

        .promo-grid { display: flex; flex-direction: column; gap: 20px; padding: 30px 0; }
        .promo-card {
            background: linear-gradient(135deg, #0B152B 0%, #12203D 100%);
            border: 1px solid var(--border-brand);
            padding: 24px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }
        .promo-card h3 { margin-top: 0; color: var(--brand-accent); font-size: 1.4rem; }
        .promo-card p { color: var(--text-secondary); margin-bottom: 20px; }
        .promo-btn {
            display: inline-block;
            padding: 10px 20px;
            background: var(--brand-accent);
            color: var(--bg-main);
            font-weight: 700;
            border-radius: var(--radius-sm);
        }

        .usp-bar { display: flex; flex-direction: column; gap: 15px; padding: 30px 0; }
        .usp-tile {
            display: flex;
            gap: 15px;
            background: var(--bg-surface);
            padding: 15px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--brand-accent);
        }
        .usp-tile i { font-size: 1.5rem; color: var(--brand-accent); }
        .usp-title { display: block; font-weight: 600; color: var(--text-primary); }
        .usp-desc { font-size: 0.9rem; color: var(--text-secondary); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            padding: 30px 0;
        }
        .pay-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 15px;
            border-radius: var(--radius-md);
            text-align: center;
        }
        .pay-card i { font-size: 1.8rem; color: var(--brand-accent); margin-bottom: 10px; }
        .pay-card strong { display: block; margin-bottom: 8px; color: var(--text-primary); }
        .pay-card p { font-size: 0.8rem; color: var(--text-muted); margin: 0; }

        .guide-steps { display: flex; flex-direction: column; gap: 20px; padding: 30px 0; }
        .step-item {
            display: flex;
            gap: 15px;
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            align-items: flex-start;
        }
        .step-num {
            min-width: 36px;
            height: 36px;
            background: var(--brand-accent);
            color: var(--bg-main);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }
        .step-content h3 { margin: 0 0 10px; font-size: 1.1rem; }
        .step-content h3 a { color: inherit; }
        .step-content p { margin: 0; color: var(--text-secondary); font-size: 0.95rem; }

        .download-section {
            padding: 30px;
            background: var(--bg-elevated);
            border-radius: var(--radius-lg);
            text-align: center;
            margin: 30px 0;
        }
        .dl-btn {
            display: block;
            width: 100%;
            max-width: 300px;
            margin: 20px auto;
            padding: 15px;
            background: var(--brand-accent);
            color: var(--bg-main);
            font-weight: 700;
            border-radius: var(--radius-pill);
            font-size: 1.1rem;
        }

        .player-guides { padding: 30px 0; }
        .guide-item {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            margin-bottom: 15px;
            border-bottom: 2px solid var(--border-default);
        }
        .guide-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; display: block; }

        .announcement-grid { display: flex; flex-direction: column; gap: 15px; padding: 30px 0; }
        .ann-card {
            background: var(--bg-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }
        .ann-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
        .ann-head i { color: var(--brand-accent); }
        .ann-head strong { color: var(--text-primary); }
        .ann-date { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 10px; }

        .faq-section { padding: 30px 0; }
        details { background: var(--bg-surface); margin-bottom: 10px; border-radius: var(--radius-md); border: 1px solid var(--border-default); }
        summary { padding: 15px; cursor: pointer; list-style: none; }
        summary h3 { margin: 0; font-size: 1.1rem; color: var(--text-primary); }
        .faq-ans { padding: 0 15px 15px; color: var(--text-secondary); line-height: 1.6; }

        .about-section { padding: 30px 0; }
        .team-card {
            background: var(--bg-elevated);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-brand);
            margin-top: 20px;
        }

        .security-section { padding: 30px 0; background: rgba(0, 91, 150, 0.1); border-radius: var(--radius-lg); padding: 20px; }
        .rg-links { display: flex; gap: 15px; margin: 20px 0; flex-wrap: wrap; }
        .rg-link { padding: 8px 15px; background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-sm); font-size: 0.9rem; }

        footer {
            background: var(--bg-surface);
            padding: 40px 0 20px;
            border-top: 1px solid var(--border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 30px;
        }
        .footer-sitemap a { font-size: 0.85rem; color: var(--text-secondary); }
        .footer-contact { margin-bottom: 20px; font-size: 0.9rem; }
        .footer-legal { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            height: 72px;
            background: rgba(11, 21, 43, 0.95);
            backdrop-filter: blur(15px);
            display: flex;
            justify-content: space-around;
            align-items: center;
            border-top: 1px solid var(--border-brand);
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-decoration: none;
            color: var(--text-secondary);
            font-size: 0.7rem;
            gap: 4px;
        }
        .nav-item i { font-size: 1.2rem; color: var(--text-primary); }
        .nav-item:hover { color: var(--brand-accent); }

        .util-link { font-size: 0.9rem; color: var(--brand-accent); text-decoration: underline; }

        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }

        @media (min-width: 768px) {
            body { padding-inline: 24px; padding-bottom: 24px; }
            .category-grid { grid-template-columns: repeat(3, 1fr); }
            .game-grid { grid-template-columns: repeat(4, 1fr); }
            .payment-grid { grid-template-columns: repeat(4, 1fr); }
            .navigator { display: none; }
            header { padding: 12px 0; }
        }

        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .category-grid { grid-template-columns: repeat(4, 1fr); }
        }