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

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: #f4f6f8;
      color: #333;
      padding: 20px;
      max-width: 900px;
      margin: auto;
      background-color: white;
      padding: 40px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      text-align: center;
    }

    body.mainpage > .modules > .distribution > .module > h2 {
      display: flex;
      justify-content: center;
      gap: 8px;
    }

    body.mainpage > .modules > .distribution > .module > h2 > span {
      transition: transform 0.2s ease;
    }

    body.mainpage > .modules > .distribution > .module > h2 > span.arrowdesplegable.open {
      transform: rotate(90deg);
    }

    h1 {
      font-size: 2.5rem;
      text-align: center;
      margin-bottom: 10px;
      color: #2c3e50;
    }

    li {
        list-style: none;
        padding: 10px;
    }

    li a {
        display: inline-block;
        padding: 12px 20px;
        border-radius: 8px;
        background-color: #3498db;
        color: white;
        font-weight: 500;
        text-decoration: none;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    li a:hover {
    background-color: #2980b9;
    text-decoration: none;
    }

    h2 {
      font-size: 1.2rem;
      text-align: center;
      margin-bottom: 30px;
      color: #3498db;
    }

    a {
      color: #3498db;
      text-decoration: none;
    }

    a:hover {
      text-decoration: none;
      color: blue;
      cursor: pointer;
    }

    h1 > a {
      cursor: pointer;
    }

    .modules {
      display: flex;
      flex-direction: column;
      gap: 20px;
      cursor: pointer;
    }

    .module {
      background-color: #ecf0f1;
      border-radius: 10px;
      padding: 20px;
      text-align: center;
      position: relative;
    }

    .module:hover {
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }
    
    .linkermodule:hover {
      background-color: #bfe7f1;
    }

    .module h2 {
      margin-bottom: 10px;
      font-size: 1.5rem;
      color: #2c3e50;
    }

    .footer {
      max-width: 900px;
      margin: auto;
      background-color: white;
      padding: 40px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      margin-top: 10px;
      text-align: center;
    }

    .btnreturn {
      display: inline-block;
      padding: 12px 25px;
      background-color: #3498db;
      color: #fff;
      font-weight: 500;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      text-decoration: none;
      transition: background-color 0.3s, transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .btnreturn:hover {
      background-color: #2980b9;
      transform: translateY(-2px);
      box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
    }

    .containercenter {
      max-width: 900px;
      margin: auto;
      background-color: white;
      padding: 40px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .distribution {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      position: relative;
    }

    .contenido {
      position: absolute;
      top: 100%;
      left: 0;
      width: 100%;
      max-height: 0%;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background-color: #ecf0f1;
      z-index: 10;
    }

    .contenido.open {
      max-height: 200px;
      overflow: auto;
    }

    .contenido:has(a:focus) {
      max-height: 200px;
      overflow: auto;
    }

    a:focus {
      outline: 0.4rem solid #1b7c00;
      border-radius: 7px;
    }

    body.pageerror {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: #f4f6f8;
      color: #333;
      padding: 20px;
      max-width: 900px;
      margin: auto;
      background-color: white;
      padding: 40px;
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      text-align: center;
    }


    /* FORMULARIO DE ENVIO DE CORREO */
    .enviaremail-page form {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 20px;
        margin-top: 20px;
        text-align: center;
    }

    .enviaremail-page form p {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .enviaremail-page form label {
        font-weight: 600;
        color: #2c3e50;
    }

    .enviaremail-page form input[type="text"],
    .enviaremail-page form input[type="password"],
    .enviaremail-page form textarea {
        padding: 10px 15px;
        border-radius: 8px;
        border: 1px solid #bdc3c7;
        font-size: 1rem;
        width: 100%;
        transition: border-color 0.3s, box-shadow 0.3s;
    }

    .enviaremail-page form textarea {
        resize: vertical;
        min-height: 80px;
    }

    .enviaremail-page form input:focus,
    .enviaremail-page form textarea:focus {
        border-color: #3498db;
        box-shadow: 0 0 8px rgba(52, 152, 219, 0.3);
        outline: none;
    }

    .enviaremail-page form input[type="submit"] {
        padding: 12px 20px;
        border-radius: 8px;
        border: none;
        background-color: #3498db;
        color: #fff;
        font-weight: 600;
        cursor: pointer;
        transition: background-color 0.3s, transform 0.2s, box-shadow 0.2s;
    }

    .enviaremail-page form input[type="submit"]:hover {
        background-color: #2980b9;
        transform: translateY(-2px);
        box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    }
    
    .enviaremail-page p.error {
        color: #e74c3c;
        font-weight: 500;
        background-color: #fdecea;
        padding: 10px 15px;
        border-radius: 8px;
    }

    .enviaremail-page a {
        display: inline-block;
        margin-top: 20px;
        padding: 10px 18px;
        background-color: #ecf0f1;
        color: #3498db;
        border-radius: 8px;
        text-decoration: none;
        transition: background-color 0.3s, transform 0.2s;
    }

    .enviaremail-page a:hover {
        background-color: #d6eaf8;
        transform: translateY(-2px);
    }