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

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f4f4f4;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

h1,
h2 {
  text-align: center;
  margin-bottom: 20px;
}

h1 {
  font-size: 2.5em;
  color: #2980b9;
  margin-top: 30px;
}

h2 {
  font-size: 1.8em;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 600px;
}

li {
  background-color: #fff;
  padding: 15px 20px;
  border-bottom: 1px solid #eee;
}

a {
  color: #3498db;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #2980b9;
}

strong {
  color: #333;
}

img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-top: 30px;
  margin-bottom: -30px;
  max-width: 300px;
}

#modulo {
  margin-bottom: -30px;
  color: #000;
}

.author {
  width: fit-content;
  margin-top: 20px;
  margin-bottom: 20px;
}