/* === BASE STYLES === */:root {
            --primary-electric: #00FFF5;
            --primary-deep: #0A4D68;
            --accent-coral: #FF6B9D;
            --accent-gold: #FFD700;
            --dark-rich: #0D1B2A;
            --dark-layer: #1B2838;
            --text-primary: #FFFFFF;
            --text-secondary: #B8C5D6;
            --text-muted: #8B99AD;
            --gradient-hero: linear-gradient(135deg, #0A4D68 0%, #0D1B2A 50%, #1B2838 100%);
            --gradient-card: linear-gradient(145deg, rgba(27, 40, 56, 0.95), rgba(13, 27, 42, 0.95));
            --gradient-accent: linear-gradient(90deg, #00FFF5 0%, #00D4FF 100%);
            --gradient-cta: linear-gradient(135deg, #00cc41 0%, #c8ff00 100%);
            --shadow-sm: 0 4px 12px rgba(0, 255, 245, 0.1);
            --shadow-md: 0 8px 24px rgba(0, 255, 245, 0.15);
            --shadow-lg: 0 16px 48px rgba(0, 255, 245, 0.2);
            --shadow-glow: 0 0 40px rgba(0, 255, 245, 0.3);
            --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            background: var(--dark-rich);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
        }

        .container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        h1 {
            font-size: clamp(42px, 6vw, 72px);
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 32px;
        }

        h2 {
            font-size: clamp(36px, 5vw, 56px);
            color: var(--text-primary);
            margin-bottom: 24px;
            position: relative;
            display: inline-block;
        }

        h2::after {
            content: '';
            position: absolute;
            bottom: -12px;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--gradient-accent);
            border-radius: 2px;
        }

        h3 {
            font-size: clamp(24px, 3vw, 32px);
            color: var(--primary-electric);
            margin-bottom: 16px;
        }

        h4 {
            font-size: clamp(20px, 2.5vw, 24px);
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        p {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        a {
            text-decoration: none;
            transition: var(--transition-smooth);
        }

        ul {
            list-style: none;
        }

        .btn-primary,
        .cta-button {
            display: inline-block;
            padding: 18px 48px;
            background: var(--gradient-cta);
            color: #000000;
            font-size: 18px;
            font-weight: 700;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            box-shadow: 0 8px 24px rgba(0, 204, 65, 0.4);
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .btn-primary::before,
        .cta-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.6s;
        }

        .btn-primary:hover,
        .cta-button:hover {
            transform: translateY(-4px) scale(1.05);
            box-shadow: 0 12px 36px rgba(0, 204, 65, 0.6);
        }

        .btn-primary:hover::before,
        .cta-button:hover::before {
            left: 100%;
        }

        .card {
            background: var(--gradient-card);
            border: 1px solid rgba(0, 255, 245, 0.15);
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--shadow-md);
            transition: var(--transition-smooth);
            backdrop-filter: blur(10px);
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-glow);
            border-color: rgba(0, 255, 245, 0.4);
        }

        .content-image {
            margin: 40px 0;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .content-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition-smooth);
        }

        .content-image:hover img {
            transform: scale(1.05);
        }

        .feature-list,
        .checklist,
        .highlight-list {
            padding-left: 0;
        }

        .feature-list li,
        .checklist li,
        .highlight-list li {
            padding: 12px 0 12px 36px;
            position: relative;
            color: var(--text-secondary);
            font-size: 17px;
        }

        .feature-list li::before,
        .checklist li::before,
        .highlight-list li::before {
            content: '→';
            position: absolute;
            left: 0;
            color: var(--primary-electric);
            font-weight: 700;
            font-size: 20px;
        }

        .table-responsive {
            overflow-x: auto;
            margin: 40px 0;
            border-radius: 20px;
            box-shadow: var(--shadow-md);
        }

        table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--gradient-card);
            border-radius: 20px;
            overflow: hidden;
        }

        thead {
            background: linear-gradient(135deg, var(--primary-deep), var(--dark-layer));
        }

        th {
            padding: 20px;
            text-align: left;
            font-weight: 700;
            color: var(--primary-electric);
            font-size: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        td {
            padding: 20px;
            border-top: 1px solid rgba(0, 255, 245, 0.1);
            color: var(--text-secondary);
            font-size: 16px;
        }

        tbody tr {
            transition: var(--transition-smooth);
        }

        tbody tr:hover {
            background: rgba(0, 255, 245, 0.05);
        }

        .accordion-item {
            background: var(--gradient-card);
            border: 1px solid rgba(0, 255, 245, 0.15);
            border-radius: 16px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .accordion-item:hover {
            border-color: rgba(0, 255, 245, 0.3);
        }

        .accordion-header button {
            width: 100%;
            padding: 24px 32px;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 20px;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition-smooth);
        }

        .accordion-header button::after {
            content: '+';
            font-size: 28px;
            color: var(--primary-electric);
            font-weight: 700;
            transition: var(--transition-smooth);
        }

        .accordion-header button[aria-expanded="true"]::after {
            content: '−';
            transform: rotate(180deg);
        }

        .accordion-header button:hover {
            color: var(--primary-electric);
        }

        .accordion-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease-out;
            padding: 0 32px;
        }

        .accordion-body.active {
            padding: 0 32px 32px;
        }

        /* === LAYOUT STYLES === */
        header {
            background: rgba(13, 27, 42, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 255, 245, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 20px 0;
            box-shadow: var(--shadow-sm);
        }

        header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .logo a {
            display: inline-block;
            text-decoration: none;
        }

        .logo img {
            height: 50px;
            width: auto;
            filter: drop-shadow(0 0 20px rgba(0, 255, 245, 0.3));
            transition: var(--transition-smooth);
        }

        .logo a:hover img {
            filter: drop-shadow(0 0 30px rgba(0, 255, 245, 0.5));
            transform: scale(1.05);
        }

        nav {
            display: flex;
            align-items: center;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .hamburger span {
            width: 28px;
            height: 3px;
            background: var(--primary-electric);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }

        .hamburger[aria-expanded="true"] span:nth-child(1) {
            transform: rotate(45deg) translateY(9px);
        }

        .hamburger[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .hamburger[aria-expanded="true"] span:nth-child(3) {
            transform: rotate(-45deg) translateY(-9px);
        }

        .nav-menu {
            display: flex;
            gap: 32px;
            align-items: center;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition-smooth);
            position: relative;
        }

        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-accent);
            transition: width 0.3s ease;
        }

        .nav-menu li a:hover {
            color: var(--primary-electric);
        }

        .nav-menu li a:hover::after {
            width: 100%;
        }

        header .btn-primary {
            padding: 12px 32px;
            font-size: 16px;
        }

        footer {
            background: var(--dark-layer);
            border-top: 1px solid rgba(0, 255, 245, 0.1);
            padding: 60px 0 30px;
            margin-top: 80px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-section h3 {
            color: var(--primary-electric);
            font-size: 20px;
            margin-bottom: 20px;
        }

        nav.footer-section h3 {
            margin-top: -10px;
            margin-right: 20px;
        }

        .footer-section p {
            color: var(--text-muted);
            font-size: 15px;
        }

        .footer-section ul {
            padding: 0;
        }

        .footer-section ul li {
            margin-bottom: 12px;
        }

        .footer-section ul li a {
            color: var(--text-muted);
            font-size: 15px;
            transition: var(--transition-smooth);
        }

        .footer-section ul li a:hover {
            color: var(--primary-electric);
            padding-left: 8px;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(0, 255, 245, 0.1);
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 14px;
            margin: 0;
        }

        @media (max-width: 991px) {
            .nav-menu {
                gap: 20px;
            }

            .nav-menu li a {
                font-size: 15px;
            }
        }

        @media (max-width: 767px) {
            header .container {
                position: relative;
            }

            .logo {
                order: 1;
            }

            nav {
                order: 2;
                margin-left: auto;
            }

            .hamburger {
                display: flex;
            }

            .nav-menu {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease-out;
                gap: 0;
                background: var(--dark-layer);
                border-radius: 12px;
                margin-top: 20px;
            }

            .nav-menu.active {
                max-height: 400px;
                padding: 16px 0;
            }

            .nav-menu li {
                width: 100%;
            }

            .nav-menu li a {
                display: block;
                padding: 16px 24px;
                border-bottom: 1px solid rgba(0, 255, 245, 0.1);
            }

            .nav-menu li:last-child a {
                border-bottom: none;
            }

            header .btn-primary {
                order: 3;
                width: 100%;
                margin-top: 20px;
                text-align: center;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

@media (max-width: 767px) {
            header .container {
                position: relative;
            }

            .logo {
                order: 1;
            }

            .hamburger {
                display: flex;
                order: 2;
            }

            nav {
                order: 4;
                width: 100%;
                margin-top: 20px;
            }

            .nav-menu {
                flex-direction: column;
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease-out;
                gap: 0;
                background: var(--dark-layer);
                border-radius: 12px;
            }

            .nav-menu.active {
                max-height: 400px;
                padding: 16px 0;
            }

            .nav-menu li {
                width: 100%;
            }

            .nav-menu li a {
                display: block;
                padding: 16px 24px;
                border-bottom: 1px solid rgba(0, 255, 245, 0.1);
            }

            .nav-menu li:last-child a {
                border-bottom: none;
            }

            header .btn-primary {
                order: 3;
                width: 100%;
                margin-top: 20px;
                text-align: center;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

@media (max-width: 767px) {
            .container {
                padding: 0 20px;
            }

            h1 {
                font-size: 42px;
                margin-bottom: 24px;
            }

            h2 {
                font-size: 32px;
                margin-bottom: 20px;
            }

            h3 {
                font-size: 24px;
            }

            p {
                font-size: 16px;
            }

            .btn-primary,
            .cta-button {
                padding: 16px 36px;
                font-size: 16px;
                width: 100%;
            }

            .hero-section {
                padding: 60px 0 40px;
            }

            .quick-navigation,
            .login-security,
            .mobile-app,
            .game-selection,
            .strategy-tips,
            .payment-methods,
            .software-providers,
            .faq {
                padding: 40px 0;
            }

            .cta-section {
                padding: 60px 0;
            }

            .navigation-list {
                grid-template-columns: 1fr;
            }

            .cards-container {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .feature-block,
            .game-category,
            .tip-item,
            .payment-info,
            .quality-section {
                padding: 24px;
                margin-bottom: 32px;
            }

            .content-image {
                margin: 32px 0;
            }

            .table-responsive {
                margin: 32px 0;
            }

            th, td {
                padding: 16px 12px;
                font-size: 14px;
            }

            .accordion-header button {
                padding: 20px 24px;
                font-size: 18px;
            }

            .accordion-body[style*="max-height"] {
                padding: 0 24px 24px;
            }

            .cta-section p {
                font-size: 18px;
            }

            .cta-section .cta-button {
                font-size: 18px;
                padding: 18px 48px;
            }

            .tip-item {
                padding-top: 40px;
            }

            .tip-item h3 {
                padding-top: 20px;
                margin-top: 0;
            }

            .tip-item::before {
                width: 50px;
                height: 50px;
                font-size: 24px;
                top: 10px;
                left: 24px;
            }
        }