.guided-practice {
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.guided-practice-heading,
.practice-title-row,
.self-check-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.guided-practice .block-label {
  margin: 0 0 var(--space-xs);
  color: var(--color-primary);
}

#copy-progress {
  flex: 0 0 auto;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-primary);
  font-size: var(--text-caption);
}

.copy-drill,
.prompt-drill,
.self-check {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-hairline);
}

.guided-practice h4 {
  margin: 0;
  font-size: var(--text-body);
}

.why-details {
  position: relative;
  flex: 0 0 auto;
}

.why-details summary {
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-primary);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.why-details summary::-webkit-details-marker {
  display: none;
}

.why-details[open] summary {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.why-details p {
  width: min(20rem, calc(100vw - 4rem));
  position: absolute;
  z-index: 2;
  top: calc(100% + var(--space-xs));
  right: 0;
  margin: 0;
  padding: var(--space-md);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.12);
  color: var(--color-ink-soft);
  font-size: var(--text-caption);
  line-height: 1.5;
}

.copy-source {
  margin: var(--space-md) 0 0;
  padding: var(--space-lg);
  border-left: 3px solid var(--color-primary);
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.55;
  white-space: pre-line;
}

.practice-instruction,
.self-check > p {
  margin: var(--space-sm) 0 0;
  color: var(--color-ink-muted);
  font-size: var(--text-caption);
}

.copy-fields {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.copy-field label,
.prompt-drill label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--text-caption);
  font-weight: 600;
}

.copy-field textarea,
.prompt-drill textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: var(--color-canvas);
  color: var(--color-ink);
  line-height: 1.55;
}

.copy-field textarea[aria-invalid="false"] {
  border-color: var(--color-primary);
  box-shadow: inset 3px 0 0 var(--color-primary);
}

.copy-feedback {
  min-height: 1.25rem;
  margin: var(--space-xs) 0 0;
  color: var(--color-ink-muted);
  font-size: var(--text-fine);
}

.copy-feedback.is-match {
  color: var(--color-primary);
  font-weight: 600;
}

.prompt-drills {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-lg);
}

.prompt-drill {
  min-width: 0;
}

.prompt-drill > p {
  margin: var(--space-md) 0 0;
  white-space: pre-line;
}

.example-box {
  margin: var(--space-md) 0;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-canvas-parchment);
}

.example-box span {
  color: var(--color-primary);
  font-size: var(--text-fine);
  font-weight: 600;
}

.example-box p {
  margin: var(--space-xs) 0 0;
  font-size: var(--text-caption);
  line-height: 1.55;
  white-space: pre-line;
}

.self-check-heading span {
  color: var(--color-primary);
  font-size: var(--text-caption);
}

#drill-checklist {
  display: grid;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.checklist-item {
  min-height: 2.75rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  cursor: pointer;
}

.checklist-item:has(input:checked) {
  border-color: var(--color-primary);
}

.checklist-item input {
  width: 1.125rem;
  height: 1.125rem;
  flex: 0 0 auto;
  accent-color: var(--color-primary);
}

.optional-label {
  display: inline-block;
  margin-left: var(--space-xs);
  padding: var(--space-xxs) var(--space-xs);
  border-radius: var(--radius-pill);
  background: var(--color-canvas-parchment);
  color: var(--color-ink-muted);
  font-family: var(--font-body);
  font-size: var(--text-fine);
  vertical-align: middle;
}

@media (max-width: 46rem) {
  .guided-practice-heading,
  .self-check-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  #copy-progress {
    align-self: flex-start;
  }

  .prompt-drills {
    grid-template-columns: 1fr;
  }

  .why-details p {
    position: fixed;
    top: auto;
    right: 1rem;
    bottom: 1rem;
    left: 1rem;
    width: auto;
  }
}

@media print {
  .why-details p {
    position: static;
    width: auto;
    margin-top: var(--space-xs);
    box-shadow: none;
  }
}

.writing-toggle {
  margin-top: var(--space-md);
}
.prompt-source {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
#hard-test {
  overflow-wrap: anywhere;
  scroll-margin-top: 8rem;
}
.content-section > a {
  display: inline-block;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.writing-toggle > summary {
  min-height: 2.75rem;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  background: var(--color-canvas);
  cursor: pointer;
  font-weight: 600;
}
.writing-toggle[open] > summary {
  margin-bottom: var(--space-md);
}
.writing-toggle > summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}