/* === BASE STYLES === */:root {
            --primary: #00d4ff;
            --secondary: #ff0080;
            --accent: #ffd600;
            --dark: #0a0e27;
            --dark-alt: #1a1f3a;
            --light: #ffffff;
            --gradient-1: linear-gradient(135deg, #00d4ff 0%, #0080ff 100%);
            --gradient-2: linear-gradient(135deg, #ff0080 0%, #ff6b00 100%);
            --gradient-3: linear-gradient(135deg, #ffd600 0%, #ff8800 100%);
            --gradient-overlay: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(255, 0, 128, 0.1) 100%);
            --shadow-sm: 0 2px 8px rgba(0, 212, 255, 0.2);
            --shadow-md: 0 8px 24px rgba(0, 212, 255, 0.3);
            --shadow-lg: 0 16px 48px rgba(0, 212, 255, 0.4);
            --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.5);
        }

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

        html, body {
            overflow-x: hidden;
            max-width: 100vw;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: var(--dark);
            color: var(--light);
            line-height: 1.6;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 1rem;
        }

        h1 {
            font-size: clamp(2rem, 5vw, 4rem);
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        h2 {
            font-size: clamp(1.75rem, 4vw, 3rem);
            color: var(--light);
            margin-bottom: 2rem;
        }

        h3 {
            font-size: clamp(1.25rem, 3vw, 1.75rem);
            color: var(--primary);
        }

        p, li {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        a:hover {
            color: var(--secondary);
        }

        .btn {
            display: inline-block;
            padding: 16px 40px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            text-align: center;
            text-decoration: none;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.2);
            transition: left 0.5s ease;
            z-index: -1;
        }

        .btn:hover::before {
            left: 100%;
        }

        .btn-primary {
            background: var(--gradient-2);
            color: var(--light);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
            color: var(--light);
        }

        .cta-button {
            background: var(--gradient-2);
            color: var(--light);
            box-shadow: var(--shadow-md);
            display: inline-block;
            padding: 16px 40px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            text-decoration: none;
            position: relative;
            overflow: hidden;
        }

        .cta-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.2);
            transition: left 0.5s ease;
        }

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

        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
            color: var(--light);
        }

        .card {
            background: var(--dark-alt);
            border-radius: 20px;
            padding: 2rem;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(0, 212, 255, 0.2);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-overlay);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }

        .card:hover::before {
            opacity: 1;
        }

        .card > * {
            position: relative;
            z-index: 1;
        }

        .content-image {
            max-width: 100%;
            margin: 1.5rem auto;
            text-align: center;
        }

        .content-image img {
            max-width: 100%;
            height: auto;
            max-height: 400px;
            object-fit: contain;
            border-radius: 8px;
        }

        .content-image.portrait img {
            max-height: 350px;
            max-width: 300px;
        }

        .content-image.wide img {
            max-height: 300px;
            max-width: 100%;
        }

        .content-image figcaption {
            margin-top: 0.5rem;
            font-size: 0.875rem;
            opacity: 0.8;
        }

        .table-responsive {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            margin: 2rem 0;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            background: var(--dark-alt);
            border-radius: 12px;
            overflow: hidden;
        }

        thead {
            background: var(--gradient-1);
        }

        th, td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid rgba(0, 212, 255, 0.1);
        }

        th {
            font-weight: 600;
            color: var(--dark);
        }

        tbody tr {
            transition: background 0.3s ease;
        }

        tbody tr:hover {
            background: rgba(0, 212, 255, 0.1);
        }

        .highlight-box {
            background: rgba(0, 212, 255, 0.1);
            border-left: 4px solid var(--primary);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 8px;
        }

        .info-card {
            background: var(--dark-alt);
            padding: 1.5rem;
            border-radius: 12px;
            margin: 1rem 0;
            border: 1px solid rgba(0, 212, 255, 0.2);
        }

        .info-card h4 {
            color: var(--primary);
            margin-bottom: 0.5rem;
        }

        ul.checklist {
            list-style: none;
            padding: 0;
        }

        ul.checklist li {
            padding-left: 2rem;
            position: relative;
            margin: 0.75rem 0;
        }

        ul.checklist li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: bold;
            font-size: 1.2rem;
        }

        /* === LAYOUT STYLES === */
        header {
            position: sticky;
            top: 0;
            background: rgba(10, 14, 39, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 212, 255, 0.2);
            z-index: 1000;
            padding: 1rem 0;
        }

        header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.1rem;
        }

        .logo img {
            max-height: 50px;
            height: 50px;
            width: auto;
        }

        header nav {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        header nav .nav-menu {
            padding-left: 0;
            margin-bottom: 0;
        }
        
        header nav .nav-menu {
            flex: none;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -6px);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
            margin: 0;
        }

        .nav-menu a {
            color: var(--light);
            font-weight: 500;
            transition: color 0.3s ease;
        }

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

        header .cta-button {
            padding: 12px 30px;
            font-size: 1rem;
            white-space: nowrap;
        }

        footer {
            background: var(--dark-alt);
            border-top: 1px solid rgba(0, 212, 255, 0.2);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-section h4 {
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .footer-section ul {
            list-style: none;
            padding: 0;
        }

        .footer-section ul li {
            margin: 0.5rem 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(0, 212, 255, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.7;
        }

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

            .hamburger {
                display: flex;
            }

            nav {
                width: 100%;
            }

            .nav-menu {
                flex-direction: column;
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                gap: 0;
            }

            .nav-menu.active {
                max-height: 300px;
            }

            .nav-menu li {
                width: 100%;
                border-bottom: 1px solid rgba(0, 212, 255, 0.1);
            }

            .nav-menu a {
                display: block;
                padding: 1rem;
            }

            header .cta-button {
                width: 100%;
                max-width: 100%;
                text-align: center;
                margin-top: 1rem;
                text-overflow: ellipsis;
                overflow: hidden;
            }
        }

@media (max-width: 767px) {
            .hero-section {
                padding: 5rem 0 4rem;
                text-align: center;
            }

            .hero-section h1 {
                font-size: 2rem;
            }

            .hero-section p {
                font-size: 1rem;
            }

            .registration, .mobile, .games, .advantages, .payments, .security, .faq {
                padding: 3rem 0;
            }

            h2 {
                font-size: 1.75rem;
            }

            .timeline-item, .feature-block {
                padding: 1.5rem;
            }

            .card {
                padding: 1.5rem;
            }

            .tabs-nav {
                flex-direction: column;
            }

            .tab-link {
                width: 100%;
            }

            .cta-section {
                padding: 4rem 0;
            }

            table {
                font-size: 0.875rem;
            }

            th, td {
                padding: 0.75rem 0.5rem;
            }
        }