/* === BASE STYLES === */:root {
            --primary: #FF3366;
            --secondary: #6C5CE7;
            --accent: #00D9FF;
            --dark: #0A0E27;
            --light: #FFFFFF;
            --gray: #8B92A8;
            --success: #00E676;
            --gradient-1: linear-gradient(135deg, #FF3366 0%, #6C5CE7 100%);
            --gradient-2: linear-gradient(135deg, #00D9FF 0%, #6C5CE7 100%);
            --gradient-3: linear-gradient(180deg, rgba(10,14,39,0) 0%, rgba(10,14,39,0.95) 100%);
            --shadow-sm: 0 2px 8px rgba(255, 51, 102, 0.15);
            --shadow-md: 0 8px 24px rgba(108, 92, 231, 0.25);
            --shadow-lg: 0 16px 48px rgba(0, 217, 255, 0.3);
            --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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;
            color: var(--light);
            background: var(--dark);
            line-height: 1.7;
            font-size: 16px;
        }

        .container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

        h1 {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        h2 {
            font-size: clamp(2rem, 4vw, 3.5rem);
            color: var(--light);
            margin-bottom: 2rem;
        }

        h3 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            color: var(--accent);
        }

        p {
            color: var(--gray);
            margin-bottom: 1.5rem;
        }

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

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

        .btn {
            padding: 16px 40px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .btn-primary {
            background: var(--gradient-1);
            color: var(--light);
            box-shadow: var(--shadow-md);
        }

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

        .btn-primary::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: var(--transition);
        }

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

        .card {
            background: rgba(108, 92, 231, 0.05);
            border: 1px solid rgba(255, 51, 102, 0.2);
            border-radius: 24px;
            padding: 2rem;
            transition: var(--transition);
            backdrop-filter: blur(10px);
        }

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

        .card.bg-light,
        .card.bg-light * {
            color: #000 !important;
        }

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

        .content-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: 16px;
            box-shadow: var(--shadow-md);
        }

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

        .content-image.wide img {
            width: 100%;
        }

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

        .table-responsive {
            overflow-x: auto;
            margin: 2rem 0;
            border-radius: 16px;
            box-shadow: var(--shadow-md);
        }

        table {
            width: 100%;
            background: rgba(108, 92, 231, 0.05);
            border-collapse: collapse;
        }

        th, td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid rgba(255, 51, 102, 0.1);
        }

        th {
            background: var(--gradient-1);
            color: var(--light);
            font-weight: 600;
        }

        td {
            color: var(--gray);
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        /* === LAYOUT STYLES === */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            border-bottom: 1px solid #e0e0e0;
            padding: 20px 0;
        }

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

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 10px;
        }

        .hamburger span {
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
            transition: var(--transition);
        }

        @media (max-width: 767px) {
            .hamburger span {
                background: #000;
            }
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translateY(10px);
        }

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

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translateY(-10px);
        }

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

        .nav-list a {
            color: #111;
            font-weight: 500;
            position: relative;
        }

        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-1);
            transition: var(--transition);
        }

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

        header .cta-button {
            max-width: 200px;
            text-overflow: ellipsis;
            white-space: nowrap;
            overflow: hidden;
        }

        footer {
            background: rgba(10, 14, 39, 0.98);
            border-top: 1px solid rgba(255, 51, 102, 0.1);
            padding: 60px 0 30px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }

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

        .footer-nav ul {
            list-style: none;
        }

        .footer-nav li {
            margin-bottom: 0.5rem;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 51, 102, 0.1);
            color: var(--gray);
        }

        @media (max-width: 767px) {
            header .container {
                flex-wrap: wrap;
                justify-content: flex-start;
                gap: 0 1rem;
            }

            .hamburger {
                display: flex;
            }

            .logo {
                flex: 1;
            }

            .main-nav {
                order: 3;
                width: 100%;
                margin-top: 20px;
            }

            .nav-list {
                flex-direction: column;
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
            }

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

            header .cta-button {
                order: 4;
                width: 100%;
                max-width: 100%;
                margin-top: 20px;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

@media (max-width: 767px) {
            header .container {
                flex-wrap: wrap;
                justify-content: flex-start;
                gap: 0 1rem;
            }

            .hamburger {
                display: flex;
            }

            .logo {
                flex: 1;
            }

            .main-nav {
                order: 3;
                width: 100%;
                margin-top: 20px;
            }

            .nav-list {
                flex-direction: column;
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
            }

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

            header .cta-button {
                order: 4;
                width: 100%;
                max-width: 100%;
                margin-top: 20px;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

@media (max-width: 767px) {
            section {
                padding: 60px 0;
            }

            .hero-section {
                padding: 80px 0 60px;
            }

            h1 {
                font-size: 2.5rem;
            }

            h2 {
                font-size: 2rem;
            }

            h3 {
                font-size: 1.5rem;
            }

            .btn {
                padding: 14px 30px;
                font-size: 1rem;
            }

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

            .timeline-item {
                padding-left: 2rem;
            }

            .bonus-card,
            .timeline-content,
            .feature-item {
                padding: 1.5rem;
            }

            .accordion-header {
                padding: 1.5rem;
            }

            .accordion-header::after {
                right: 1.5rem;
            }

            .accordion-body {
                padding: 0 1.5rem;
            }

            .accordion-item.active .accordion-body {
                padding: 0 1.5rem 1.5rem;
            }
        }