/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #121212;
  color: #e0e0e0;
  line-height: 1.6;
  padding: 1rem;
}

a {
  color: #80cbc4;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.3rem;
}

header p.description {
  font-size: 1rem;
  color: #b0b0b0;
}

details {
  background-color: #1e1e1e;
  border-radius: 5px;
  padding: 0.5rem 1rem;
  margin-bottom: 1rem;
}

summary {
  font-weight: bold;
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

details[open] summary::before {
  content: "▼ ";
}

details summary::before {
  content: "▶ ";
}

ul {
  margin-top: 0.5rem;
  padding-left: 1.2rem;
}

footer {
  text-align: center;
  margin-top: 3rem;
  font-size: 0.9rem;
  color: #888;
}