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

    .skip-link {
      position: absolute;
      top: -100%;
      left: 0;
      padding: 8px 16px;
      background: #1a1a1a;
      color: #ffffff;
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      font-size: 1rem;
      text-decoration: none;
      z-index: 100;
    }
    .skip-link:focus {
      top: 0;
    }

    body {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      background-color: #ffffff;
      color: #1a1a1a;
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      font-size: 1rem;
      line-height: 1.6;
    }

    header {
      padding: 48px 24px 32px;
      text-align: center;
    }

    .logo {
      max-width: 560px;
      width: 100%;
      height: auto;
    }

    main {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 32px 24px 48px;
      text-align: center;
    }

    .description {
      font-size: 3.0rem;
      color: #1a1a1a;
    }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    footer {
      padding: 24px;
      text-align: center;
      font-size: 0.875rem;
      color: #1a1a1a;
      border-top: 1px solid #d0dde8;
    }

    @media (min-width: 768px) {
      header { padding: 64px 48px 40px; }
      main { padding: 40px 48px 64px; }
    }