:root {
      --dark-blue: #002B5B;
      --footer-dark: #001F44;
    }

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

    body {
      font-family: 'Segoe UI', system-ui, sans-serif;
    }

    /* HEADER */
    .header {
      background-color: var(--dark-blue);
      color: white;
      padding: 45px 5% 35px;
    }

    .header-content {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 50px;
    }

    .column h3 {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 14px;
      border-bottom: 2px solid rgba(255, 255, 255, 0.25);
      padding-bottom: 10px;
    }

    .column ul {
      list-style: none;
    }

    .column ul li {
      margin-bottom: 9px;
    }

    .column ul li a {
      color: white;
      text-decoration: none;
      font-size: 0.97rem;
      transition: all 0.3s ease;
    }

    .column ul li a:hover {
      color: #4fc3f7;
      padding-left: 4px;
    }

    /* Social Icons */
    .social-icons {
      display: flex;
      gap: 18px;
      margin: 18px 0 28px;
    }

    .social-icons a {
      color: white;
      font-size: 1.65rem;
      transition: transform 0.3s ease, color 0.3s ease;
    }

    .social-icons a:hover {
      transform: translateY(-3px) scale(1.15);
      color: #4fc3f7;
    }

    /* FOOTER */
    .footer {
      background-color: var(--footer-dark);
      color: white;
      font-size: 0.88rem;
    }

    .footer-top {
      background-color: #003366;
      padding: 16px 5%;
      border-bottom: 1px solid rgba(255,255,255,0.12);
    }

    .footer-top .footer-links {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
    }

    .footer-top .footer-links a {
      color: white;
      text-decoration: none;
      transition: color 0.3s;
    }

    .footer-top .footer-links a:hover {
      color: #4fc3f7;
    }

    .usa-flag {
      font-size: 1.1rem;
      margin-right: 8px;
    }

    .footer-bottom {
      max-width: 1200px;
      margin: 0 auto;
      padding: 30px 5% 40px;
      display: flex;
      flex-wrap: wrap;
      gap: 25px;
      align-items: flex-start;
      justify-content: space-between;
    }

    .footer-disclaimer {
      flex: 1;
      line-height: 1.6;
      max-width: 920px;
    }

    .robot-icon {
      width: 48px;
      height: 48px;
      background: white;
      color: #002B5B;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      flex-shrink: 0;
      box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    }

    /* Responsive */
    @media (max-width: 992px) {
      .header-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
      }
    }

    @media (max-width: 768px) {
      .header-content {
        grid-template-columns: 1fr;
        gap: 35px;
      }
      .footer-bottom {
        flex-direction: column;
      }
    }