body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 1rem;
  box-sizing: border-box;
}

.header-flex {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.profile-pic {
  width: 150px;
  border-radius: 50%;
  margin: 1rem 0;
}

.intro h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

section {
  margin-top: 2rem;
}

section h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

ul {
  list-style-type: none;
  padding: 0;
}

ul li {
  margin-bottom: 1rem;
}

a {
  color: #007bff;
  text-decoration: none;
}

@media (min-width: 768px) {
  .header-flex {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    text-align: left;
  }

  .intro {
    max-width: 500px;
  }
}