body {
  font-family: Arial, sans-serif;
  background: #f9f9f9;
  color: #333;
  margin: 0; padding: 0;
}
header {
  background: #004080;
  color: #fff;
  padding: 20px 10%;
  text-align: center;
}
h1, h2, h3 {
  font-weight: normal;
}
main {
  padding: 20px 10%;
}
.track-list ul {
  list-style: none;
  padding: 0;
}
.track-list li {
  margin: 10px 0;
}
.track-list a {
  color: #004080;
  text-decoration: none;
  font-weight: bold;
}
.track-list a:hover {
  text-decoration: underline;
}
.track-info img {
  max-width: 100%;
  height: auto;
  margin: 10px 0;
  border-radius: 8px;
}
footer {
  background: #eee;
  text-align: center;
  padding: 15px 10%;
  font-size: 0.9em;
  color: #777;
  margin-top: 40px;
}