body {
  background-color: #f5f5f5;  /* light grey */
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

main {
  background-color: white;
  max-width: 900px;
  margin: 2rem auto;
  padding: 2rem;
  border-radius: 10px;
}

h1, h2, h3 {
  letter-spacing: -0.02em;
}

.navbar-brand {
  font-weight: 600;
}

.quarto-title-block .quarto-title-banner {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

img {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  border-radius: 8px;
}