:root {
            --p-primary: #1A3A5F;
            --p-primary-hover: #254D7C;
            --p-secondary: #C0C0C8;
            --p-secondary-hover: #D8D8E0;
            --p-accent: #00F5FF;
            --p-bg-main: #060D1A;
            --p-bg-surface: #0D172B;
            --p-bg-elevated: #16223D;
            --p-bg-overlay: rgba(6, 13, 26, 0.8);
            --p-text-primary: #E6EBF2;
            --p-text-secondary: #B0B8C4;
            --p-text-muted: #7A869A;
            --p-text-brand-contrast: #060D1A;
            --p-text-link: #00F5FF;
            --p-text-link-hover: #70F9FF;
            --p-btn-bg: #00F5FF;
            --p-btn-text: #060D1A;
            --p-btn-hover-bg: #70F9FF;
            --p-border-default: #1E2D4A;
            --p-border-strong: #2C3E63;
            --p-border-brand: rgba(0, 245, 255, 0.4);
            --p-radius-sm: 8px;
            --p-radius-md: 16px;
            --p-radius-lg: 24px;
            --p-radius-pill: 9999px;
            --p-shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            --p-shadow-glow: 0 0 15px rgba(0, 245, 255, 0.6);
            --p-grad-brand: linear-gradient(135deg, #1A3A5F 0%, #00F5FF 100%);
            --p-grad-hero: radial-gradient(circle at center, #16223D 0%, #060D1A 100%);
            --p-grad-btn: linear-gradient(180deg, #00F5FF 0%, #00C2CC 100%);
        }

        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(--p-bg-main);
            color: var(--p-text-primary);
            overflow-x: hidden;
        }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            max-width: 1200px;
            margin-inline: auto;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--p-text-primary);
        }
        .header-logo strong {
            font-size: 16px;
            font-weight: normal;
        }
        .header-actions {
            display: flex;
            gap: 12px;
        }
        .btn-nav {
            text-decoration: none;
            padding: 8px 16px;
            border-radius: var(--p-radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: 0.3s ease;
        }
        .btn-nav-login {
            background: transparent;
            color: var(--p-text-primary);
            border: 1px solid var(--p-border-strong);
        }
        .btn-nav-register {
            background: var(--p-btn-bg);
            color: var(--p-btn-text);
        }
        .btn-nav-register:hover { background: var(--p-btn-hover-bg); }

        main { max-width: 1200px; margin-inline: auto; }

        .hero-section {
            text-align: center;
            padding: 40px 0;
            background: var(--p-grad-hero);
        }
        h1 {
            font-family: 'Hind Siliguri', sans-serif;
            font-size: clamp(1.6rem, 6.5vw, 2.4rem);
            line-height: 1.2;
            color: var(--p-text-primary);
            margin-bottom: 20px;
        }
        .hero-text {
            font-size: 1.1rem;
            color: var(--p-text-secondary);
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .hero-cta {
            display: block;
            width: 100%;
            max-width: 400px;
            margin: 0 auto;
            background: var(--p-grad-btn);
            color: var(--p-btn-text);
            text-decoration: none;
            padding: 16px;
            border-radius: var(--p-radius-pill);
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: var(--p-shadow-glow);
            transition: transform 0.2s;
        }
        .hero-cta:hover { transform: scale(1.02); }
        .hero-pills {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 24px;
        }
        .hero-pill {
            background: var(--p-bg-elevated);
            border: 1px solid var(--p-border-brand);
            padding: 6px 14px;
            border-radius: var(--p-radius-pill);
            font-size: 0.85rem;
            color: var(--p-accent);
        }

        .banner-link {
            display: block;
            margin: 20px 0;
            text-decoration: none;
        }
        .banner-img {
            width: 100%;
            aspect-ratio: 2 / 1;
            object-fit: cover;
            border-radius: var(--p-radius-md);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 40px;
        }
        .cat-tile {
            background: var(--p-bg-surface);
            border: 1px solid var(--p-border-default);
            padding: 20px;
            border-radius: var(--p-radius-md);
            text-decoration: none;
            color: var(--p-text-primary);
            text-align: center;
            transition: 0.3s;
        }
        .cat-tile:hover { border-color: var(--p-accent); background: var(--p-bg-elevated); }
        .cat-icon { font-size: 2rem; margin-bottom: 12px; color: var(--p-accent); }
        .cat-name { display: block; font-size: 1.1rem; margin-bottom: 8px; }
        .cat-desc { font-size: 0.85rem; color: var(--p-text-muted); display: block; }

        h2 {
            font-family: 'Hind Siliguri', sans-serif;
            font-size: clamp(1.3rem, 5.2vw, 1.8rem);
            line-height: 1.25;
            margin-top: 40px;
            margin-bottom: 20px;
            color: var(--p-text-primary);
            text-align: center;
        }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .game-card {
            background: var(--p-bg-surface);
            border-radius: var(--p-radius-sm);
            text-decoration: none;
            color: var(--p-text-primary);
            overflow: hidden;
            border: 1px solid var(--p-border-default);
            transition: 0.3s;
        }
        .game-card:hover { transform: translateY(-5px); border-color: var(--p-accent); }
        .game-img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
        .game-info { padding: 12px; text-align: center; }
        .game-info h3 { font-size: 1rem; margin: 0; font-weight: 500; }

        .facts-container {
            background: var(--p-bg-surface);
            border: 1px solid var(--p-border-brand);
            border-radius: var(--p-radius-lg);
            padding: 24px;
            margin: 30px 0;
        }
        .freshness-notice {
            font-style: italic;
            color: var(--p-text-muted);
            font-size: 0.9rem;
            text-align: center;
            margin-bottom: 20px;
            display: block;
        }
        .facts-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 16px;
        }
        .facts-table td {
            padding: 12px;
            border-bottom: 1px solid var(--p-border-default);
        }
        .facts-label { font-weight: 600; color: var(--p-text-secondary); width: 40%; }
        .facts-value { color: var(--p-text-primary); }
        .terms-link-wrap { text-align: center; font-size: 0.85rem; }
        .terms-link-wrap a { color: var(--p-text-link); text-decoration: none; }

        .toc-nav {
            display: flex;
            overflow-x: auto;
            gap: 12px;
            padding: 16px 0;
            scrollbar-width: none;
            margin-bottom: 30px;
        }
        .toc-nav::-webkit-scrollbar { display: none; }
        .toc-link {
            background: var(--p-bg-elevated);
            color: var(--p-text-secondary);
            text-decoration: none;
            padding: 8px 16px;
            border-radius: var(--p-radius-pill);
            white-space: nowrap;
            font-size: 0.9rem;
            border: 1px solid var(--p-border-default);
        }
        .toc-link:hover { color: var(--p-accent); border-color: var(--p-accent); }

        .promo-grid { display: grid; gap: 20px; }
        .promo-card {
            background: var(--p-bg-surface);
            border: 1px solid var(--p-border-default);
            padding: 24px;
            border-radius: var(--p-radius-md);
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .promo-card h3 { margin: 0; color: var(--p-accent); }
        .promo-card p { margin: 0; color: var(--p-text-secondary); }
        .promo-btn {
            align-self: flex-start;
            background: var(--p-grad-brand);
            color: var(--p-btn-text);
            text-decoration: none;
            padding: 10px 20px;
            border-radius: var(--p-radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .usp-grid { display: grid; gap: 16px; }
        .usp-tile {
            display: flex;
            gap: 16px;
            background: var(--p-bg-surface);
            padding: 20px;
            border-radius: var(--p-radius-md);
            align-items: center;
            border-left: 4px solid var(--p-accent);
        }
        .usp-icon { font-size: 1.5rem; color: var(--p-accent); width: 30px; }
        .usp-content strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
        .usp-content p { margin: 0; font-size: 0.9rem; color: var(--p-text-muted); }

        .payment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .pay-card {
            background: var(--p-bg-surface);
            padding: 20px;
            border-radius: var(--p-radius-md);
            text-align: center;
            border: 1px solid var(--p-border-default);
        }
        .pay-icon { font-size: 2rem; margin-bottom: 10px; color: var(--p-accent); }
        .pay-name { display: block; font-weight: 600; margin-bottom: 8px; }
        .pay-desc { font-size: 0.8rem; color: var(--p-text-muted); }

        .step-list { display: grid; gap: 20px; }
        .step-item {
            display: flex;
            gap: 20px;
            background: var(--p-bg-surface);
            padding: 20px;
            border-radius: var(--p-radius-md);
        }
        .step-num {
            background: var(--p-accent);
            color: var(--p-btn-text);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .step-item h3 { margin: 0 0 8px; font-size: 1.1rem; }
        .step-item h3 a { color: inherit; text-decoration: none; }
        .step-item p { margin: 0; color: var(--p-text-secondary); font-size: 0.9rem; }

        .download-panel {
            text-align: center;
            background: var(--p-bg-elevated);
            padding: 40px 20px;
            border-radius: var(--p-radius-lg);
            border: 1px solid var(--p-border-brand);
        }
        .download-btn {
            display: inline-block;
            background: var(--p-grad-btn);
            color: var(--p-btn-text);
            text-decoration: none;
            padding: 16px 32px;
            border-radius: var(--p-radius-pill);
            font-weight: 700;
            margin-top: 20px;
        }

        .guide-item {
            background: var(--p-bg-surface);
            padding: 20px;
            border-radius: var(--p-radius-md);
            margin-bottom: 16px;
            border: 1px solid var(--p-border-default);
        }
        .guide-meta { font-size: 0.8rem; color: var(--p-text-muted); margin-bottom: 12px; display: block; }

        .announcement-list { display: grid; gap: 16px; }
        .ann-item {
            display: flex;
            gap: 16px;
            background: var(--p-bg-surface);
            padding: 16px;
            border-radius: var(--p-radius-md);
            border: 1px solid var(--p-border-default);
        }
        .ann-icon { font-size: 1.2rem; color: var(--p-accent); margin-top: 4px; }
        .ann-content h3 { margin: 0 0 8px; font-size: 1.05rem; }
        .ann-content p { margin: 0 0 8px; font-size: 0.9rem; color: var(--p-text-secondary); }
        .ann-date { font-size: 0.75rem; color: var(--p-text-muted); }

        .faq-section { display: grid; gap: 12px; }
        details { background: var(--p-bg-surface); border: 1px solid var(--p-border-default); border-radius: var(--p-radius-md); }
        summary { padding: 16px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
        summary h3 { margin: 0; font-size: 1.05rem; font-weight: 500; }
        .faq-answer { padding: 0 16px 16px; color: var(--p-text-secondary); font-size: 0.95rem; }

        .about-box {
            background: var(--p-bg-surface);
            padding: 30px;
            border-radius: var(--p-radius-lg);
            border: 1px solid var(--p-border-default);
            margin-bottom: 30px;
        }
        .team-card {
            background: var(--p-bg-elevated);
            padding: 20px;
            border-radius: var(--p-radius-md);
            border-top: 3px solid var(--p-accent);
            margin-top: 20px;
        }

        .security-footer {
            background: var(--p-bg-surface);
            padding: 30px;
            border-radius: var(--p-radius-lg);
            text-align: center;
        }
        .rg-links { display: flex; justify-content: center; gap: 20px; margin: 20px 0; }
        .rg-links a { color: var(--p-accent); text-decoration: none; font-size: 0.9rem; }

        footer {
            margin-top: 50px;
            padding: 40px 0;
            border-top: 1px solid var(--p-border-default);
            text-align: center;
        }
        .footer-sitemap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .footer-link { color: var(--p-text-secondary); text-decoration: none; font-size: 0.9rem; }
        .footer-contact { margin-bottom: 20px; color: var(--p-text-secondary); }
        .footer-contact a { color: var(--p-accent); text-decoration: none; }
        .footer-legal { font-size: 0.8rem; color: var(--p-text-muted); max-width: 700px; margin: 0 auto; }

        .navigator {
            position: fixed;
            inset-inline: 0;
            bottom: 0;
            background: var(--p-bg-surface);
            border-top: 1px solid var(--p-border-brand);
            display: flex;
            justify-content: space-around;
            padding: 10px 0 calc(10px + env(safe-area-inset-bottom));
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .nav-item {
            text-decoration: none;
            color: var(--p-text-secondary);
            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(--p-accent); }

        .utility-link { display: block; text-align: center; margin-top: 15px; color: var(--p-accent); text-decoration: none; font-size: 0.9rem; }

        @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 { position: static; display: none; }
            .hero-cta { width: auto; padding: 16px 48px; }
        }
        @media (min-width: 1200px) {
            body { padding-inline: 32px; max-width: 1200px; margin-inline: auto; }
            .category-grid { grid-template-columns: repeat(4, 1fr); }
        }
        section { content-visibility: auto; contain-intrinsic-size: 1px 500px; }