.learn-page {
  background: var(--color-surface);
}
.learn-shell {
  display: grid;
  grid-template-columns: 240px minmax(0, 720px);
  gap: var(--space-16);
  align-items: start;
  padding-top: var(--space-20);
  padding-bottom: var(--space-28);
}
.learn-sidebar {
  position: sticky;
  top: calc(68px + var(--space-6));
  align-self: start;
  padding-right: var(--space-6);
}
.learn-home {
  display: inline-flex;
  margin-bottom: var(--space-8);
  color: var(--color-ink);
  font: 600 13px/1.45 var(--font-body);
}
.learn-sidebar nav {
  display: grid;
  gap: var(--space-8);
}
.learn-sidebar section h2 {
  margin: 0 0 var(--space-3);
  color: var(--color-text-muted);
  font: 700 11px/1.3 var(--font-body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.learn-sidebar section div {
  display: grid;
  border-left: 1px solid var(--color-border);
}
.learn-sidebar section a {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 38px;
  padding: var(--space-2) 0 var(--space-2) var(--space-4);
  color: var(--color-text-muted);
  font: 500 13px/1.45 var(--font-body);
  transition: color var(--motion-fast) var(--ease-standard);
}
.learn-sidebar section a:hover {
  color: var(--color-ink);
}
.learn-sidebar section a:focus-visible,
.learn-home:focus-visible,
.learn-callout a:focus-visible,
.learn-next a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}
.learn-sidebar section a[aria-current='page'] {
  color: var(--color-primary);
  font-weight: 600;
}
.learn-sidebar section a[aria-current='page']::before {
  content: '';
  position: absolute;
  left: -1px;
  top: var(--space-2);
  bottom: var(--space-2);
  width: 2px;
  background: var(--color-primary);
}
.learn-article {
  min-width: 0;
}
.learn-article > header {
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border);
}
.learn-eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--color-primary);
  font: 700 11px/1.3 var(--font-body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.learn-article h1 {
  max-width: 720px;
  margin: 0;
  color: var(--color-ink);
  font: 600 clamp(35.8px, 3.84vw, 55.8px)/1.06 var(--font-display);
  letter-spacing: -0.025em;
}
.learn-intro {
  max-width: 68ch;
  margin: var(--space-4) 0 0;
  color: var(--color-text-muted);
  font: 400 17px/1.5 var(--font-body);
}
.learn-section {
  padding: var(--space-10) 0;
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(68px + var(--space-8));
}
.learn-section h2 {
  margin: 0 0 var(--space-4);
  color: var(--color-ink);
  font: 600 19.8px/1.16 var(--font-body);
  letter-spacing: -0.02em;
}
.learn-section p {
  max-width: 68ch;
  margin: 0 0 var(--space-3);
  color: var(--color-text-muted);
  font: 400 14px/1.55 var(--font-body);
}
.learn-section p:last-child {
  margin-bottom: 0;
}
.learn-section ul {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}
.learn-section li {
  position: relative;
  max-width: 68ch;
  padding-left: var(--space-6);
  color: var(--color-text-muted);
  font: 400 14px/1.55 var(--font-body);
}
.learn-section li::before {
  content: '';
  position: absolute;
  left: var(--space-1);
  top: 0.55em;
  width: 7px;
  height: 7px;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
}
.learn-callout {
  margin-top: var(--space-10);
  padding: var(--space-6);
  background: var(--color-primary-soft);
  border: 1px solid color-mix(in srgb, var(--color-primary) 25%, var(--color-border));
  border-radius: var(--radius-md);
}
.learn-callout strong {
  display: block;
  color: var(--color-ink);
  font: 600 14px/1.4 var(--font-body);
}
.learn-callout p {
  max-width: 68ch;
  margin: var(--space-2) 0 var(--space-3);
  color: var(--color-text-muted);
  font: 400 14px/1.55 var(--font-body);
}
.learn-callout a,
.learn-next a {
  color: var(--color-primary);
  font: 600 13px/1.45 var(--font-body);
  transition: color var(--motion-fast) var(--ease-standard);
}
.learn-callout a:hover,
.learn-next a:hover {
  color: var(--color-primary-hover);
}
.learn-next {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);

  margin-top: var(--space-12);

  /* Explicit reset so global footer styles do not affect this footer */
  padding: var(--space-6) 0 0;
  background: transparent;
  border: 0;
  border-top: 1px solid var(--color-border);
  border-radius: 0;
  box-shadow: none;

  color: inherit;
  font: 500 13px/1.45 var(--font-body);
}
.learn-next > span {
  color: var(--color-text-muted);
}
.learn-next a span {
  color: inherit;
}
.learn-page .site-footer {
  margin-top: 0;
}
html[data-theme='dark'] .learn-page {
  background: var(--paper);
}
@media (max-width: 1200px) {
  .learn-shell {
    grid-template-columns: 220px minmax(0, 720px);
    gap: var(--space-12);
  }
}
@media (max-width: 900px) {
  .learn-shell {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: var(--space-10);
    padding-top: var(--space-16);
    padding-bottom: var(--space-20);
  }
  .learn-sidebar {
    padding-right: 0;
  }
}
@media (max-width: 720px) {
  .learn-shell {
    display: block;
    padding-top: var(--space-10);
    padding-bottom: var(--space-16);
  }
  .learn-sidebar {
    position: relative;
    top: auto;
    margin-bottom: var(--space-12);
  }
  .learn-home {
    margin-bottom: var(--space-5);
  }
  .learn-sidebar nav {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .learn-sidebar section a {
    min-height: 44px;
  }
  .learn-article h1 {
    font-size: 35.8px;
  }
  .learn-intro {
    font-size: 16px;
  }
  .learn-section {
    padding: var(--space-8) 0;
  }
  .learn-next {
    align-items: flex-start;
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  .learn-sidebar section a,
  .learn-callout a,
  .learn-next a {
    transition: none;
  }
}