/* Cognifiy lesson player */
.cg-lesson-page { max-width: 720px; }
.cg-lesson-loading { padding: 48px 0; color: var(--text-secondary); }

.cg-lesson-entry,
.cg-lesson-step,
.cg-lesson-complete {
  padding: 8px 0 48px;
}

.cg-lesson-kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.cg-lesson-title {
  margin: 0 0 16px;
  font-size: clamp(1.6rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
}
.cg-lesson-hook {
  margin: 0 0 20px;
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text-secondary);
}
.cg-lesson-meta {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 14px;
}
.cg-lesson-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.cg-lesson-resume-note { margin-top: 12px; font-size: 13px; color: var(--text-secondary); }

.cg-lesson-progress {
  height: 3px;
  background: var(--border-subtle);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 20px;
}
.cg-lesson-progress > span {
  display: block;
  height: 100%;
  background: var(--primary);
  transition: width 0.25s ease;
}
.cg-lesson-section {
  margin: 0 0 4px;
  font-size: 13px;
  color: var(--text-secondary);
}
.cg-lesson-type {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary, var(--text-secondary));
}
.cg-lesson-body,
.cg-lesson-question {
  margin: 0 0 16px;
  font-size: 1.05rem;
  line-height: 1.6;
}
.cg-math {
  font-family: "Times New Roman", Times, serif;
  font-style: italic;
  white-space: pre-wrap;
}

.cg-lesson-choices {
  display: grid;
  gap: 8px;
  margin: 0 0 16px;
}
.cg-lesson-choice {
  text-align: left;
  padding: 12px 14px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-control, 10px);
  background: var(--surface-primary);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 15px;
}
.cg-lesson-choice:hover:not(:disabled) {
  border-color: var(--primary);
  background: var(--primary-soft, rgba(0,0,0,0.03));
}
.cg-lesson-choice:disabled { opacity: 0.7; cursor: default; }

.cg-lesson-input-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.cg-lesson-input-row .input { flex: 1; }

.cg-lesson-feedback {
  margin: 0 0 16px;
  padding: 12px 14px;
  border-radius: var(--radius-control, 10px);
  font-size: 14px;
  line-height: 1.45;
}
.cg-lesson-feedback.is-ok {
  background: color-mix(in srgb, var(--success, #1a7f37) 12%, transparent);
  color: var(--text-primary);
}
.cg-lesson-feedback.is-err {
  background: color-mix(in srgb, var(--danger, #c62828) 10%, transparent);
}
.cg-lesson-feedback.is-hint {
  background: var(--surface-secondary, rgba(0,0,0,0.04));
}

.cg-lesson-nav { margin: 12px 0 24px; }
.cg-lesson-hint-btn { margin-bottom: 12px; }

.cg-lesson-ask {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}
.cg-lesson-ask label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.cg-lesson-ask-row { display: flex; gap: 8px; }
.cg-lesson-ask-row .input { flex: 1; }
.cg-lesson-ask-answer {
  margin-top: 12px;
  padding: 12px 14px;
  background: var(--surface-secondary, rgba(0,0,0,0.03));
  border-radius: var(--radius-control, 10px);
  font-size: 14px;
  line-height: 1.5;
}

.cg-lesson-summary,
.cg-lesson-message {
  color: var(--text-secondary);
  line-height: 1.5;
}