body {
  font-family: 'Segoe UI', sans-serif;
  background: #f5f3f0;
  color: #2d2d2d;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

header {
  background: #7f9c96;
  color: white;
  padding: 20px;
  text-align: center;
}

.subtitle {
  font-style: italic;
  margin-top: 5px;
}

main {
  max-width: 800px;
  margin: auto;
  padding: 20px;
  background: white;
  box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.05);
}

section {
  margin-bottom: 30px;
}

h2, h3 {
  color: #4a7265;
}
ul, ol {
  padding-left: 20px;
}
footer {
  text-align: center;
  padding: 20px;
  background: #ecebe4;
  font-weight: bold;
}