/* === BASE STYLES === */:root {
            --primary: #FF2D55;
            --primary-dark: #D91042;
            --secondary: #00C8FF;
            --secondary-dark: #0098C8;
            --accent: #FFD60A;
            --dark: #0A0E27;
            --dark-light: #1A1F3A;
            --text: #E8ECFF;
            --text-muted: #8B92B8;
            --success: #30D158;
            --gradient-primary: linear-gradient(135deg, #FF2D55 0%, #FF6B88 100%);
            --gradient-secondary: linear-gradient(135deg, #00C8FF 0%, #00E5FF 100%);
            --gradient-accent: linear-gradient(135deg, #FFD60A 0%, #FFE94D 100%);
            --gradient-dark: linear-gradient(180deg, #0A0E27 0%, #1A1F3A 100%);
        }

        * {
            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', sans-serif;
            background: var(--dark);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: #fff;
        }

        h1 {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            letter-spacing: -0.02em;
        }

        h2 {
            font-size: clamp(2rem, 4vw, 3.5rem);
            letter-spacing: -0.01em;
        }

        h3 {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
        }

        h4 {
            font-size: clamp(1.25rem, 2.5vw, 1.75rem);
        }

        p {
            margin-bottom: 1.25rem;
            color: var(--text);
        }

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

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

        .btn {
            padding: 16px 32px;
            font-size: 1.125rem;
            font-weight: 600;
            border-radius: 12px;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            min-height: 44px;
            min-width: 44px;
            text-align: center;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 45, 85, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(255, 45, 85, 0.6);
            color: #fff;
        }

        .btn-secondary {
            background: var(--gradient-secondary);
            color: var(--dark);
            box-shadow: 0 8px 24px rgba(0, 200, 255, 0.4);
        }

        .btn-secondary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 200, 255, 0.6);
            color: var(--dark);
        }

        .cta-button {
            padding: 16px 32px;
            font-size: 1.125rem;
            font-weight: 600;
            border-radius: 12px;
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 45, 85, 0.4);
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            min-height: 44px;
            text-align: center;
        }

        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(255, 45, 85, 0.6);
            color: #fff;
        }

        .card {
            background: var(--dark-light);
            border-radius: 16px;
            padding: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.4s ease;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(255, 45, 85, 0.2);
            border-color: rgba(255, 45, 85, 0.3);
        }

        .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;
        }

        /* === LAYOUT STYLES === */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 14, 39, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 45, 85, 0.2);
            padding: 1rem 0;
        }

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

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

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            min-width: 44px;
            min-height: 44px;
            justify-content: center;
            align-items: center;
        }

        .hamburger span {
            width: 28px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .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);
        }

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

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

        .nav-menu a {
            color: var(--text);
            font-weight: 500;
            transition: color 0.3s ease;
            font-size: 1rem;
            white-space: nowrap;
        }

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

        header .cta-button {
            padding: 12px 24px;
            font-size: 1rem;
            white-space: nowrap;
        }

        footer {
            background: var(--dark-light);
            border-top: 1px solid rgba(255, 45, 85, 0.2);
            padding: 4rem 0 2rem;
            margin-top: 6rem;
        }

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

        .footer-section h3, .footer-section h4 {
            color: var(--primary);
            margin-bottom: 1rem;
            font-size: 1.25rem;
        }

        .footer-section p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .footer-section ul li {
            margin-bottom: 0.75rem;
        }

        .footer-section ul a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-section ul a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-muted);
            font-size: 0.875rem;
        }

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

            .hamburger {
                display: flex;
            }

            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0;
                background: var(--dark-light);
                border-radius: 12px;
                padding: 1rem;
                margin-top: 1rem;
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-menu li {
                width: 100%;
                text-align: center;
                padding: 0.75rem 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }

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

            header nav {
                width: 100%;
            }

            header .cta-button {
                width: 100%;
                max-width: 100%;
                margin-top: 1rem;
            }

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

@media (max-width: 767px) {
            .hero-section {
                padding: 4rem 0 3rem;
            }

            section {
                padding: 3rem 0;
            }

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

            .tab-btn {
                width: 100%;
            }

            .timeline-item {
                padding-left: 1.5rem;
            }

            .comparison-table {
                font-size: 0.85rem;
            }

            .comparison-table th,
            .comparison-table td {
                padding: 0.75rem 0.5rem;
            }

            .table-of-contents ul {
                grid-template-columns: 1fr;
            }
        }