/**
 * Legacy chapter content — token-based overrides for reader pages
 */

.reader-page {
  padding: 0 !important;
  background: var(--color-bg) !important;
  font-family: var(--font-sans) !important;
  color: var(--color-text) !important;
}

.reader-page .container {
  max-width: none;
  margin: 0;
  padding: 0;
}

/* Chapter hero — minimal editorial header */
.reader-article > header.chapter-hero,
.reader-article header:first-of-type:not(.reader-meta) {
  text-align: left;
  margin: 0 0 var(--space-8);
  padding: 0 0 var(--space-6);
  background: none !important;
  color: var(--color-text) !important;
  border-radius: 0;
  box-shadow: none;
  border-bottom: 1px solid var(--color-border);
}

.reader-article header.chapter-hero .theme-toggle,
.reader-article header .theme-toggle {
  display: none;
}

.chapter-hero__symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  font-size: 2rem;
  line-height: 1;
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-sm);
}

.chapter-hero__eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-brand-600);
  margin: 0 0 var(--space-2);
}

.chapter-hero__title {
  font-family: var(--font-sans);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--font-bold);
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-2);
  color: var(--color-text) !important;
}

.chapter-hero__subtitle {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: var(--color-text-secondary) !important;
  opacity: 1 !important;
  margin: 0;
}

/* Note blocks */
.reader-article .card {
  font-family: var(--font-sans) !important;
  background: var(--color-bg-elevated) !important;
  border: 1px solid var(--color-border) !important;
  border-left: 4px solid var(--color-brand-600) !important;
  border-radius: var(--radius-xl) !important;
  padding: var(--space-4) !important;
  margin-bottom: var(--space-4) !important;
  box-shadow: var(--shadow-xs) !important;
  color: var(--color-text) !important;
  transition: box-shadow var(--transition-fast);
}

@media (min-width: 640px) {
  .reader-article .card {
    padding: var(--space-6) !important;
    margin-bottom: var(--space-6) !important;
  }
}

.reader-article .card:hover {
  transform: none;
  box-shadow: var(--shadow-sm) !important;
}

.reader-article .card h2 {
  font-family: var(--font-sans);
  color: var(--color-text) !important;
  border-bottom-color: var(--color-border) !important;
  font-size: var(--text-xl);
  margin-top: 0;
}

.reader-article .card h3 {
  font-family: var(--font-sans);
  color: var(--color-text-secondary) !important;
}

.reader-article strong {
  color: var(--color-text);
  font-weight: var(--font-semibold);
}

/* Timeline stepper */
.reader-article .timeline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: stretch;
  background: var(--color-bg-muted) !important;
  border: 1px solid var(--color-border);
  padding: var(--space-3) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: none !important;
  margin: var(--space-4) 0;
}

@media (min-width: 640px) {
  .reader-article .timeline {
    padding: var(--space-4) !important;
  }
}

.reader-article .timeline-item {
  flex: 1 1 8rem;
  text-align: center;
  padding: var(--space-3);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  position: relative;
}

@media (min-width: 768px) {
  .reader-article .timeline-item:not(:last-child)::after {
    content: "→";
    position: absolute;
    top: 50%;
    right: calc(-1 * var(--space-2) - 8px);
    transform: translateY(-50%);
    font-size: var(--text-base);
    color: var(--color-text-muted);
    z-index: 10;
    pointer-events: none;
  }
}

.reader-article .timeline-item span,
.reader-article .timeline-item [style*="color"] {
  color: var(--color-text-muted) !important;
}

/* Callouts */
.reader-article .highlight-box {
  background: var(--color-warning-bg) !important;
  color: var(--color-text) !important;
  border-left: 4px solid var(--color-warning) !important;
  border-radius: var(--radius-lg);
  padding: var(--space-5) !important;
}

.reader-article .mnemonic-box {
  background: var(--color-brand-50) !important;
  color: var(--color-brand-800) !important;
  border: 1px solid var(--color-brand-100) !important;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
}

[data-theme="dark"] .reader-article .mnemonic-box {
  background: rgba(37, 99, 235, 0.1) !important;
  border-color: rgba(37, 99, 235, 0.25) !important;
  color: var(--color-brand-200) !important;
}

.reader-article .callout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

@media (max-width: 600px) {
  .reader-article .callout-grid {
    grid-template-columns: 1fr;
  }
}

.reader-article .callout-cell {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-muted);
  font-size: var(--text-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.reader-article .callout-cell:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.reader-article .callout-cell--success {
  background: var(--color-success-bg);
  border-color: rgba(5, 150, 105, 0.25);
}

.reader-article .callout-cell--success:hover {
  border-color: rgba(5, 150, 105, 0.5);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.08);
}

.reader-article .callout-cell--warm {
  background: var(--color-warning-bg);
  border-color: rgba(217, 119, 6, 0.25);
}

.reader-article .callout-cell--warm:hover {
  border-color: rgba(217, 119, 6, 0.5);
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.08);
}

/* Tags */
.reader-article .tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  font-family: var(--font-sans);
}

.reader-article .tag-up {
  background: rgba(219, 39, 119, 0.12);
  color: #be185d;
}

.reader-article .tag-imp {
  background: var(--color-brand-50);
  color: var(--color-brand-700);
}

/* PYQ panel */
.reader-article .pyq-box {
  background: var(--color-bg-muted) !important;
  border: 1px solid var(--color-border) !important;
  color: var(--color-text) !important;
  border-radius: var(--radius-xl) !important;
  padding: var(--space-4) !important;
  margin-top: var(--space-8);
}

@media (min-width: 640px) {
  .reader-article .pyq-box {
    padding: var(--space-6) !important;
    margin-top: var(--space-10);
  }
}

.reader-article .pyq-box h2 {
  color: var(--color-text) !important;
  border-bottom-color: var(--color-border) !important;
  font-family: var(--font-sans);
}

.reader-article .pyq-item {
  background: var(--color-bg-elevated) !important;
  border: 1px solid var(--color-border);
  padding: var(--space-4) !important;
  border-radius: var(--radius-md) !important;
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
}

.reader-article .chapter-footer {
  text-align: center;
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
}

/* Lists */
.reader-article ul {
  padding-left: 0;
}

.reader-article li {
  padding-left: var(--space-5);
}

.reader-article li::before {
  color: var(--color-brand-600);
}