:root {
      --color-primario: #003366;
      --color-secundario: #0077cc;
      --color-fondo: #f4f6f8;
    }

    body {
      font-family: Arial, Helvetica, sans-serif;
      margin: 0;
      padding: 0;
      background-color: #fff;
      color: #333;
      line-height: 1.6;
    }

    header {
      background-color: var(--color-fondo);
      padding: 1em;
      text-align: center;
      border-bottom: 1px solid #ccc;
    }

    header h1 {
      margin: 0.5em 0;
      color: var(--color-primario);
    }

    nav ul {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      justify-content: center;
      gap: 2em;
      flex-wrap: wrap;
    }

    nav a {
      color: var(--color-secundario);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 0.4em;
    }

    nav a:hover {
      text-decoration: underline;
    }

    main {
      max-width: 900px;
      margin: 2em auto;
      padding: 1em;
    }

    h2 {
      color: var(--color-primario);
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.5em;
    }

    p {
      text-align: center;
      margin-bottom: 2em;
    }

    form {
      display: grid;
      grid-template-columns: 1fr 2fr;
      gap: 1em 1.5em;
      max-width: 700px;
      margin: 0 auto;
      padding: 2em;
      border: 1px solid #ccc;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      background-color: #fff;
    }

    label {
      font-weight: bold;
      align-self: center;
      display: flex;
      align-items: center;
      gap: 0.4em;
    }

    input,
    select,
    textarea {
      width: 100%;
      padding: 8px;
      border: 1px solid #bbb;
      border-radius: 5px;
      font-size: 1em;
      box-sizing: border-box;
    }

    textarea {
      resize: vertical;
    }

    .help {
      grid-column: 2 / 3;
      font-size: 0.9em;
      color: #666;
      margin-top: -0.5em;
    }

    .required {
      color: red;
    }

    button {
      grid-column: 1 / 3;
      justify-self: center;
      margin-top: 1em;
      padding: 10px 25px;
      background-color: var(--color-secundario);
      color: white;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      font-size: 1em;
      transition: background-color 0.3s;
      display: flex;
      align-items: center;
      gap: 0.5em;
    }

    button:hover {
      background-color: var(--color-primario);
    }


    footer {
      background-color: var(--color-fondo);
      text-align: center;
      padding: 1em;
      border-top: 1px solid #ccc;
      margin-top: 2em;
      font-size: 0.95em;
    }

   
    @media (max-width: 768px) {
      form {
        grid-template-columns: 1fr;
      }

      label {
        margin-top: 1em;
      }

      .help {
        grid-column: 1;
      }

      button {
        width: 100%;
      }
    }

    @media (max-width: 480px) {
      body {
        font-size: 0.95rem;
      }

      form {
        padding: 1.5em;
      }
    }