*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: #f4f4f5;
  color: #111318;
  line-height: 1.55;
}

.container {
  width: min(880px, 92vw);
  margin: 0 auto;
}

.top {
  padding: 2rem 0 1rem;
}

.back-link {
  color: #666d78;
  text-decoration: none;
  font-weight: 500;
}

.back-link:hover {
  text-decoration: underline;
}

.card {
  margin-bottom: 2rem;
  border: 1px solid #dddfe4;
  background: #fff;
  border-radius: 24px;
  padding: 1.4rem;
  box-shadow: 0 10px 28px rgba(17, 19, 24, 0.06);
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.8rem, 4vw, 2.35rem);
}

h2 {
  margin: 1.2rem 0 0.45rem;
  font-size: 1.1rem;
}

p,
li {
  color: #323743;
}

ul {
  margin: 0.35rem 0 0.5rem;
  padding-left: 1.2rem;
}

.effective {
  margin: 0;
  color: #666d78;
}