body {
  font-family: 'Helvetica Neue', sans-serif;
  font-size: 1.05rem;
  line-height: 1.6;
  color: #333;
}
h1, h2, h3 {
  font-weight: 600;
  margin-top: 1rem;
}
.navbar {
  font-size: 0.95rem;
}
.text-center {
  text-align: center;
  margin-top: 2rem;
  margin-bottom: 2rem;
}
.btn {
  font-size: 1rem;
  padding: 0.5rem 1rem;
}
img {
  max-width: 100%;
  height: auto;
}