/* === BASE STYLES === */:root {
      --primary-cyan: #00FFFF;
      --primary-magenta: #FF00FF;
      --accent-coral: #FF4757;
      --deep-navy: #0A0E27;
      --rich-purple: #2D1B69;
      --electric-blue: #1E3A8A;
      --gradient-main: linear-gradient(135deg, #0A0E27 0%, #1E3A8A 50%, #2D1B69 100%);
      --gradient-accent: linear-gradient(90deg, #00FFFF 0%, #FF00FF 100%);
      --text-primary: #FFFFFF;
      --text-secondary: #B8C5D6;
      --card-bg: rgba(255, 255, 255, 0.03);
      --card-border: rgba(0, 255, 255, 0.2);
    }

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

    body {
      font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      background: #0A0E27;
      color: var(--text-primary);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      transform: translateZ(0);
      min-height: 100vh;
      position: relative;
    }

    body::before {
      content: '';
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: var(--gradient-main);
      z-index: -1;
      pointer-events: none;
      transform: translateZ(0);
    }

    html {
      scroll-behavior: smooth;
      background: #0A0E27;
    }

    h1, h2, h3, h4 {
      font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      font-weight: 700;
      line-height: 1.2;
    }

    h1 {
      font-size: clamp(2rem, 4vw, 3.5rem);
      letter-spacing: -0.02em;
      font-weight: 800;
      margin-top: 2rem;
    }

    body > section:first-of-type:not(.hero-section) h1 {
      margin-top: 0;
    }

    h2 {
      font-size: clamp(2rem, 4vw, 3.5rem);
      letter-spacing: -0.01em;
      margin-bottom: 2rem;
      font-weight: 700;
    }

    h3 {
      font-size: clamp(1.5rem, 3vw, 2rem);
      margin-bottom: 1rem;
      font-weight: 600;
      letter-spacing: -0.01em;
    }

    p {
      font-size: 1.1rem;
      color: var(--text-secondary);
      margin-bottom: 1.5rem;
    }

    .container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .btn {
      font-family: 'Syne', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      font-weight: 700;
      font-size: 1.1rem;
      padding: 18px 40px;
      border-radius: 50px;
      text-decoration: none;
      display: inline-block;
      transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
      position: relative;
      overflow: hidden;
      border: none;
      cursor: pointer;
    }

    .btn-primary {
      background: var(--gradient-accent);
      color: var(--deep-navy);
      box-shadow: 0 8px 32px rgba(0, 255, 255, 0.3);
    }

    .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: left 0.6s;
    }

    .btn-primary:hover {
      transform: translateY(-4px) scale(1.05);
      box-shadow: 0 16px 48px rgba(0, 255, 255, 0.5);
    }

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

    .btn-secondary {
      background: rgba(255, 255, 255, 0.1);
      color: var(--primary-cyan);
      border: 2px solid var(--primary-cyan);
      backdrop-filter: blur(10px);
    }

    .btn-secondary:hover {
      background: var(--primary-cyan);
      color: var(--deep-navy);
      transform: translateY(-3px);
    }

    .card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 24px;
      padding: 2.5rem;
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      position: relative;
      overflow: hidden;
      transform: translateZ(0);
      will-change: transform;
      backface-visibility: hidden;
    }

    .card a {
      position: relative;
      z-index: 1;
      pointer-events: auto;
    }

    .card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at top right, rgba(0, 255, 255, 0.1), transparent 50%);
      opacity: 0;
      transition: opacity 0.4s;
      pointer-events: none;
    }

    .card:hover {
      transform: translateY(-12px);
      border-color: var(--primary-magenta);
      box-shadow: 0 24px 64px rgba(255, 0, 255, 0.3);
    }

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

    .card img {
      width: 100%;
      max-width: 450px;
      border-radius: 16px;
      margin: 1.5rem auto;
      display: block;
      transform: translateZ(0);
      will-change: transform;
    }

    img {
      image-rendering: -webkit-optimize-contrast;
      image-rendering: crisp-edges;
      transform: translateZ(0);
    }

    table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      margin: 2rem 0;
      background: var(--card-bg);
      border-radius: 16px;
      overflow: hidden;
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      transform: translateZ(0);
      backface-visibility: hidden;
    }

    thead {
      background: linear-gradient(90deg, var(--primary-cyan) 0%, var(--primary-magenta) 100%);
    }

    thead th {
      color: var(--deep-navy);
      font-family: 'Syne', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      font-weight: 700;
      padding: 1.5rem;
      text-align: left;
      font-size: 1.1rem;
    }

    tbody tr {
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      transition: background 0.3s;
    }

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

    tbody td {
      padding: 1.25rem 1.5rem;
      color: var(--text-secondary);
    }

    tbody td:first-child {
      color: var(--text-primary);
      font-weight: 600;
    }

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

    ul li {
      padding: 0.75rem 0;
      padding-left: 2rem;
      position: relative;
      color: var(--text-secondary);
    }

    ul li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 12px;
      height: 12px;
      background: var(--gradient-accent);
      border-radius: 50%;
      box-shadow: 0 0 12px rgba(0, 255, 255, 0.6);
    }

    section {
      padding: 6rem 0;
      position: relative;
      transform: translateZ(0);
      contain: layout style paint;
      content-visibility: auto;
      backface-visibility: hidden;
      isolation: isolate;
    }

    section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%) translateZ(0);
      width: 1px;
      height: 100%;
      background: linear-gradient(180deg, transparent, var(--primary-cyan), transparent);
      opacity: 0.2;
      will-change: opacity;
      pointer-events: none;
    }

    .checklist li::before {
      content: '✓';
      color: var(--primary-cyan);
      font-weight: bold;
      background: none;
      box-shadow: none;
      width: auto;
      height: auto;
      font-size: 1.2rem;
    }

    /* === LAYOUT STYLES === */
    header {
      position: fixed;
      top: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(10, 14, 39, 0.95);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(0, 255, 255, 0.1);
      transition: background-color 0.2s ease, box-shadow 0.2s ease;
      transform: translateZ(0);
      will-change: background-color;
      backface-visibility: hidden;
    }

    header.scrolled {
      background: rgba(10, 14, 39, 0.95);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    }

    header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1.25rem 20px;
      flex-wrap: wrap;
    }

    body > section:first-of-type:not(.hero-section) {
      padding-top: 9rem !important;
      margin-top: 0 !important;
    }

    @media (max-width: 991px) {
      body > section:first-of-type:not(.hero-section) {
        padding-top: 8rem !important;
      }
    }

    @media (max-width: 767px) {
      body > section:first-of-type:not(.hero-section) {
        padding-top: 9rem !important;
        margin-top: 0 !important;
      }
    }

    .logo {
      display: flex;
      align-items: center;
      text-decoration: none;
      height: 50px;
    }

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

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

    .nav-menu {
      display: flex;
      gap: 2.5rem;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .nav-menu li {
      padding-left: 0;
    }

    .nav-menu li::before {
      display: none;
    }

    .nav-menu li a {
      color: var(--text-primary);
      text-decoration: none;
      font-weight: 600;
      font-size: 1rem;
      transition: all 0.3s;
      position: relative;
    }

    .nav-menu li a::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--gradient-accent);
      transition: width 0.3s;
    }

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

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

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 6px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0;
    }

    .hamburger span {
      width: 28px;
      height: 3px;
      background: var(--primary-cyan);
      border-radius: 2px;
      transition: all 0.3s;
      box-shadow: 0 0 8px rgba(0, 255, 255, 0.5);
    }

    .hamburger[aria-expanded="true"] span:nth-child(1) {
      transform: rotate(45deg) translate(8px, 8px);
    }

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

    .hamburger[aria-expanded="true"] span:nth-child(3) {
      transform: rotate(-45deg) translate(8px, -8px);
    }

    footer {
      background: rgba(10, 14, 39, 0.95);
      border-top: 1px solid rgba(0, 255, 255, 0.2);
      padding: 3rem 0 2rem;
      margin-top: 4rem;
    }

    .footer-nav ul {
      display: flex;
      gap: 2.5rem;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 2rem;
    }

    .footer-nav ul li::before {
      display: none;
    }

    .footer-nav ul li a {
      color: var(--text-secondary);
      text-decoration: none;
      transition: color 0.3s;
      font-size: 1rem;
    }

    .footer-nav ul li a:hover {
      color: var(--primary-cyan);
    }

    footer p {
      text-align: center;
      color: var(--text-secondary);
      font-size: 0.95rem;
      margin: 0;
    }

    @media (max-width: 991px) {
      .nav-menu {
        gap: 1.5rem;
      }
    }

    @media (max-width: 767px) {
      header .container {
        padding: 1rem 20px;
      }

      .logo img {
        max-height: 40px;
      }

      .hamburger {
        display: flex;
        order: 3;
      }

      nav {
        order: 2;
      }

      .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 2rem;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all 0.4s ease;
        border-bottom: 1px solid rgba(0, 255, 255, 0.2);
      }

      .nav-menu.active {
        max-height: 400px;
        opacity: 1;
      }

      .nav-menu li {
        padding: 1rem 0 1rem 2rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      }

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

      nav > .btn-primary {
        display: none;
      }

      header .container::after {
        content: '';
        width: 100%;
        order: 4;
        margin-top: 1rem;
      }

      header .cta-mobile {
        width: 100%;
        order: 5;
        text-align: center;
        margin-top: 1rem;
      }

      .footer-nav ul {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
      }
    }

@media (max-width: 767px) {
      header .container {
        padding: 1rem 20px;
      }

      .logo img {
        max-height: 40px;
      }

      .hamburger {
        display: flex;
        order: 3;
      }

      nav {
        order: 2;
      }

      .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 2rem;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all 0.4s ease;
        border-bottom: 1px solid rgba(0, 255, 255, 0.2);
      }

      .nav-menu.active {
        max-height: 400px;
        opacity: 1;
      }

      .nav-menu li {
        padding: 1rem 0 1rem 2rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      }

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

      nav > .btn-primary {
        display: none;
      }

      header .container::after {
        content: '';
        width: 100%;
        order: 4;
        margin-top: 1rem;
      }

      header .cta-mobile {
        width: 100%;
        order: 5;
        text-align: center;
        margin-top: 1rem;
      }

      .footer-nav ul {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
      }
    }

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

      body > section:first-of-type:not(.hero-section) {
        padding-top: 9rem !important;
        margin-top: 0 !important;
      }

      .hero-section {
        padding: 6rem 0 3rem;
      }

      .hero-section h1 {
        font-size: 2.25rem;
      }

      .hero-section p {
        font-size: 1.1rem;
      }

      p {
        font-size: 1rem;
      }

      .btn {
        padding: 16px 32px;
        font-size: 1rem;
      }

      .card {
        padding: 1.75rem;
      }

      .timeline-item,
      .highlight-box,
      .feature-block {
        padding: 1.75rem;
      }

      table {
        font-size: 0.875rem;
        display: block;
        overflow-x: auto;
      }

      thead th,
      tbody td {
        padding: 0.875rem;
        white-space: nowrap;
      }

      .tabs-nav {
        flex-direction: column;
        gap: 0.75rem;
      }

      .tab-link {
        width: 100%;
        text-align: center;
      }

      .tab-content article {
        padding: 2rem;
      }

      .accordion-header {
        padding: 1.5rem 1.75rem;
        font-size: 1.15rem;
        padding-right: 3.5rem;
      }

      .accordion-header::after {
        right: 1.75rem;
      }

      .accordion-body {
        padding: 0 1.75rem;
      }

      .accordion-item.active .accordion-body {
        padding: 0 1.75rem 1.5rem;
      }

      ul li {
        padding-left: 1.5rem;
        font-size: 0.95rem;
      }
    }