body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f7fa;
  color: #1f2d3d;
  line-height: 1.65;
}
.wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}
.card {
  background: #fff;
  border: 1px solid #e5eaf0;
  border-radius: 10px;
  padding: 24px;
}
h1 {
  margin-top: 0;
  font-size: 26px;
}
h2 {
  margin-top: 28px;
  font-size: 18px;
}
h3 {
  margin-top: 18px;
  font-size: 16px;
}
.muted {
  color: #6b7a8a;
  font-size: 14px;
}
.back-link {
  display: inline-block;
  margin-bottom: 16px;
  color: #007bff;
  text-decoration: none;
  font-size: 14px;
}
.back-link:hover {
  text-decoration: underline;
}
ul {
  padding-left: 22px;
}
li {
  margin-bottom: 8px;
}