body {
  font-family: 'Arial', sans-serif;
  background-color: #f8f9fa;
  color: #2c3e50;
  line-height: 1.6;
  margin: 20px;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 20px;
  background-color: #ffffff;
  box-shadow: 0px 0px 15px rgba(0,0,0,0.1);
  border-radius: 10px;
}

header h1 {
  text-align: center;
  color: #1abc9c;
}

.portfolio-link {
  display: block;
  text-align: center;
  font-size: 18px;
  margin: 10px 0 30px 0;
  font-weight: bold;
  color: #1abc9c;
  text-decoration: none;
}

.portfolio-link:hover {
  text-decoration: underline;
}

h2 {
  color: #34495e;
  border-bottom: 2px solid #1abc9c;
  padding-bottom: 5px;
  margin-top: 25px;
}

h3 {
  color: #16a085;
  margin-top: 15px;
}

ul {
  list-style-type: square;
  margin-left: 20px;
}

a {
  color: #1abc9c;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}