body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f7f9fa;
  color: #2e2e2e;
  line-height: 1.6;
  padding: 0;
}

header {
  background-color: #2c3e50;
  color: #ffffff;
  padding: 2rem 1rem;
  text-align: center;
  border-bottom: 5px solid #b03a2e;
}

h1 {
  margin: 0;
  font-size: 2.5rem;
}

#countdown {
  font-size: 1.2rem;
  margin-top: 0.5rem;
  color: #ecf0f1;
}

main {
  max-width: 800px;
  margin: 2rem auto;
  background-color: #ffffff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
  border: 1px solid #dcdcdc;
}

ul {
  padding-left: 1.5rem;
}

ul li {
  margin-bottom: 1rem;
}

strong {
  color: #2c3e50;
}

#citations {
  max-width: 800px;
  margin: 2rem auto;
  padding: 1.5rem;
  border-top: 1px solid #ccc;
}

#citations h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #2c3e50;
}

#citations ul {
  padding-left: 1.5rem;
}

#citations li {
  margin-bottom: 0.5rem;
}

#citations a {
  color: #2c3e50;
  text-decoration: none;
  font-style: italic;
}

#citations a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  color: #aaa;
  font-size: 0.9rem;
  margin: 2rem 0;
}