/* === BASE STYLES === */:root {
      --primary: #00D9FF;
      --secondary: #FF3D71;
      --accent: #FFD700;
      --dark: #0A0E27;
      --dark-blue: #141B3D;
      --text: #E8EAED;
      --text-muted: #A0A6B8;
      --success: #00E676;
      --gradient-primary: linear-gradient(135deg, #00D9FF 0%, #0066FF 100%);
      --gradient-secondary: linear-gradient(135deg, #FF3D71 0%, #FF0080 100%);
      --gradient-dark: linear-gradient(180deg, #0A0E27 0%, #141B3D 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: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

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

    h1 { font-size: clamp(36px, 5vw, 64px); }
    h2 { font-size: clamp(32px, 4vw, 48px); }
    h3 { font-size: clamp(24px, 3vw, 36px); }
    h4 { font-size: clamp(20px, 2.5vw, 28px); }

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

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

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

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

    .btn {
      padding: 16px 40px;
      font-size: 18px;
      font-weight: 700;
      border: none;
      border-radius: 50px;
      cursor: pointer;
      transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
      text-transform: uppercase;
      letter-spacing: 1px;
      display: inline-block;
      position: relative;
      overflow: hidden;
      min-height: 44px;
      min-width: 44px;
    }

    .btn::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      width: 0;
      height: 0;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.2);
      transform: translate(-50%, -50%);
      transition: width 0.6s, height 0.6s;
    }

    .btn:hover::before {
      width: 300px;
      height: 300px;
    }

    .btn-primary {
      background: var(--gradient-primary);
      color: #fff;
      box-shadow: 0 8px 32px rgba(0, 217, 255, 0.4);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 48px rgba(0, 217, 255, 0.6);
    }

    .cta-button {
      background: var(--gradient-secondary);
      color: #fff;
      box-shadow: 0 8px 32px rgba(255, 61, 113, 0.4);
      padding: 16px 40px;
      font-size: 18px;
      font-weight: 700;
      border: none;
      border-radius: 50px;
      cursor: pointer;
      transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
      text-transform: uppercase;
      letter-spacing: 1px;
      display: inline-block;
      position: relative;
      overflow: hidden;
      text-decoration: none;
    }

    .cta-button:hover {
      transform: translateY(-3px) scale(1.05);
      box-shadow: 0 12px 48px rgba(255, 61, 113, 0.6);
      color: #fff;
    }

    .card {
      background: rgba(20, 27, 61, 0.6);
      border: 1px solid rgba(0, 217, 255, 0.2);
      border-radius: 24px;
      padding: 32px;
      backdrop-filter: blur(10px);
      transition: all 0.4s ease;
      
    }

    .card:hover {
      transform: translateY(-8px);
      border-color: var(--primary);
      box-shadow: 0 20px 60px rgba(0, 217, 255, 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(0, 217, 255, 0.1);
      padding: 20px 0;
    }

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

    .logo a {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary);
      text-decoration: none;
      transition: all 0.3s ease;
    }

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

    header nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-menu {
      display: flex;
      list-style: none;
      gap: 32px;
      margin: 0;
      padding-left: 0;
      margin-bottom: 0;
    }
    
    .nav-menu {
      flex: none;
    }

    .nav-menu a {
      color: var(--text);
      font-weight: 600;
      font-size: 16px;
      transition: all 0.3s ease;
      position: relative;
      padding: 8px 0;
    }

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

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

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

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 6px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 10px;
      z-index: 1001;
      min-width: 44px;
      min-height: 44px;
      justify-content: center;
      align-items: center;
    }

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

    .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: var(--dark-blue);
      padding: 60px 0 30px;
      border-top: 1px solid rgba(0, 217, 255, 0.1);
    }

    .footer-content {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-section h4 {
      color: var(--primary);
      margin-bottom: 20px;
      font-size: 20px;
    }

    .footer-links {
      list-style: none;
    }

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

    .footer-links a {
      color: var(--text);
      transition: all 0.3s ease;
    }

    .footer-links a:hover {
      color: var(--primary);
      padding-left: 8px;
    }

    .footer-bottom {
      text-align: center;
      padding-top: 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text);
      font-size: 14px;
    }

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

      .hamburger {
        display: flex;
      }

      header nav {
        width: 100%;
        flex-direction: column;
        gap: 0;
      }

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

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

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

      header .nav-menu a {
        display: block;
        padding: 16px 0;
      }

      header .cta-button {
        width: 100%;
        margin-top: 16px;
        text-align: center;
        max-width: 100%;
        font-size: 16px;
        padding: 14px 20px;
      }
    }


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

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

      .hero-section p {
        font-size: 16px;
      }

      .timeline-item {
        flex-direction: column;
        gap: 16px;
      }

      .timeline-item::before {
        display: none;
      }

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

      .tab-button {
        padding: 12px 16px;
      }

      .cards-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

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

      .cta-section p {
        font-size: 16px;
      }

      .comparison-table {
        font-size: 14px;
      }

      .comparison-table th,
      .comparison-table td {
        padding: 12px 8px;
      }
    }

@media (max-width: 480px) {
      h1 { font-size: 32px; }
      h2 { font-size: 28px; }
      h3 { font-size: 22px; }
      h4 { font-size: 18px; }

      .btn, .cta-button {
        font-size: 16px;
        padding: 14px 28px;
      }
    }