body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
  color: #333;
}

header {
  background-color: #2b3a42;
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}

main {
  padding: 2rem;
}

h1, h2 {
  color: #2b3a42;
}

section {
  margin-bottom: 2rem;
}

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

ul li {
  background: #fff;
  margin-bottom: 0.75rem;
  padding: 1rem;
  border-left: 5px solid #009688;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

footer {
  background-color: #2b3a42;
  color: white;
  text-align: center;
  padding: 1rem;
  position: relative;
  bottom: 0;
  width: 100%;
}