body {
  font-family: "Times New Roman", Times, serif;
  font-size: 16px;
  line-height: 1.8;
  max-width: 900px;
  margin: 60px auto;
  padding: 0 60px;
  color: #333;
  background-color: #fff;
}

h1, h2, h3 {
  color: #003366;
  text-align: center;
  margin-bottom: 30px;
}

section {
  margin-bottom: 100px;
}

ul {
  list-style-type: disc;
  margin-left: 50px;
  padding-left: 10px;
}

p {
  text-align: justify;
  text-indent: 2em;
  margin-bottom: 25px;
}

.duoc-logo {
  width: 45%;
  max-width: 400px;
  margin-bottom: 40px;
}

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 90vh;
  text-align: center;
}


.contenido a {
  text-decoration: none;
  color: #004080;
}

hr {
  border: none;
  border-top: 2px solid #ccc;
  margin: 200px auto;
  width: 90%;
}

@media print {
  section {
    page-break-inside: avoid;
  }

  hr {
    page-break-before: always;
    visibility: hidden;
  }
}

#botonSubir {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  padding: 10px 14px;
  border: none;
  border-radius: 50%;
  font-size: 18px;
  background-color: #0d6efd;
  color: white;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  transition: background-color 0.3s;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  line-height: 1;
}