/* ===================================================================
   Layout específico das páginas de lição
   =================================================================== */

.lesson-hero {
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6) 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  list-style: none;
  padding: 0;
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-primary-dark);
}

.lesson-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.lesson-progress {
  position: sticky;
  top: var(--header-height);
  z-index: 90;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2) 0;
}

.lesson-progress .container {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.lesson-progress-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.lesson-progress-track {
  flex: 1;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-border);
  overflow: hidden;
}

.lesson-progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  transition: width var(--transition-base);
}

@media (prefers-reduced-motion: reduce) {
  .lesson-progress-fill {
    transition: none;
  }
}

.lesson-body {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-7) var(--space-4);
}

.lesson-body > .callout,
.lesson-body > p,
.lesson-body > h2,
.lesson-body > h3 {
  max-width: 100%;
}

.lesson-nav-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.lesson-nav-footer .btn {
  flex: 1;
  min-width: 220px;
}

.media-placeholder-note {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-style: italic;
}

.progress-list {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.progress-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.progress-list li::before {
  content: "✓";
  color: var(--color-success-border);
  font-weight: var(--font-weight-black);
  flex-shrink: 0;
}