html {
  font-synthesis: none;
}

body,
button,
input,
select,
textarea {
  font-family: var(--font-family-ui);
}

body {
  background: var(--color-background);
  color: var(--color-text);
  line-height: 1.55;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-text);
  font-family: var(--font-family-ui);
  text-transform: none;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(1.75rem, 7vw, 2.4rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  line-height: 1.18;
}

h3 {
  font-size: 1.2rem;
  line-height: 1.25;
}

.eyebrow {
  margin-bottom: 0.55rem;
  color: var(--color-secondary);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.lead {
  color: var(--color-text-supporting);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  line-height: 1.55;
}

.muted,
.progress-caption,
.login-help,
.lesson-meta,
.lesson-navigation__direction {
  color: var(--color-text-muted);
}

label,
.button,
.text-link {
  font-weight: 750;
}

.lesson-copy {
  color: var(--color-text);
  font-size: 1.08rem;
  line-height: 1.75;
}

.lesson-copy h2,
.lesson-copy h3,
.lesson-copy h4 {
  line-height: 1.25;
}

.lesson-copy strong {
  color: var(--color-text);
}