/**
 * Concept Finder — search UI and revision document styles.
 */

/* ── Search landing ─────────────────────────────────────────── */

.cfinder {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.cfinder__hero {
  position: relative;
  padding: 2rem 0 2.5rem;
  text-align: center;
}

.cfinder__back {
  position: absolute;
  left: 0;
  top: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border: none;
  background: var(--surface-2, rgba(0, 0, 0, 0.04));
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.875rem;
}

.cfinder__back:hover {
  background: var(--surface-3, rgba(0, 0, 0, 0.08));
  color: var(--text-primary);
}

.cfinder__hero-inner {
  max-width: 640px;
  margin: 0 auto;
}

.cfinder__badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.15));
  color: var(--accent, #6366f1);
  margin-bottom: 0.75rem;
}

.cfinder__title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  margin: 0 0 0.75rem;
  line-height: 1.15;
  color: var(--text-primary);
}

.cfinder__subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.cfinder__search-panel {
  background: var(--card-bg, var(--surface-1));
  border: 1px solid var(--border-subtle, rgba(0, 0, 0, 0.08));
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  margin-bottom: 2rem;
}

.cfinder__input-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--input-bg, var(--surface-2));
  border: 2px solid var(--border-subtle);
  border-radius: 12px;
  padding: 0.5rem 0.75rem 0.5rem 1rem;
  transition: border-color 0.2s;
}

.cfinder__input-wrap:focus-within {
  border-color: var(--accent, #6366f1);
}

.cfinder__input-icon {
  flex-shrink: 0;
  color: var(--text-muted);
}

.cfinder__input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 1.05rem;
  color: var(--text-primary);
  outline: none;
  min-width: 0;
}

.cfinder__submit {
  flex-shrink: 0;
  white-space: nowrap;
}

.cfinder__filters {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.cfinder__filter-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.cfinder__filter-select {
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: 0.875rem;
}

.cfinder__scope-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: auto;
}

.cfinder__web-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.65rem 0.3rem 0.35rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--input-bg);
  cursor: pointer;
  user-select: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.cfinder__web-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.cfinder__web-toggle__track {
  width: 34px;
  height: 18px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.35);
  position: relative;
  flex-shrink: 0;
  transition: background 0.2s;
}

.cfinder__web-toggle__track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s;
}

.cfinder__web-toggle.is-on {
  border-color: color-mix(in srgb, #0ea5e9 45%, transparent);
  background: rgba(14, 165, 233, 0.1);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
}

.cfinder__web-toggle.is-on .cfinder__web-toggle__track {
  background: #0ea5e9;
}

.cfinder__web-toggle.is-on .cfinder__web-toggle__track::after {
  transform: translateX(16px);
}

.cfinder__web-toggle__label {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.cfinder__web-toggle__icon {
  font-size: 0.9rem;
}

.cfdoc-sources-banner--web {
  border-color: rgba(14, 165, 233, 0.25);
  background: rgba(14, 165, 233, 0.08);
}

.cfdoc-source--web {
  text-decoration: none;
}

.cfdoc-source--web:hover {
  border-color: #0ea5e9;
}

.cfinder__error {
  margin: 1rem 0 0;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  font-size: 0.9rem;
}

.cfinder__suggestions {
  margin-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

.cfinder__suggestions-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}

.cfinder-suggest {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}

.cfinder-suggest:hover {
  background: var(--surface-2);
}

.cfinder-suggest__label {
  font-weight: 500;
  color: var(--text-primary);
}

.cfinder-suggest__meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.cfinder__recent {
  margin-bottom: 2.5rem;
}

.cfinder__recent h2 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
}

.cfinder__recent-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cfinder-chip {
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-2);
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s;
}

.cfinder-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(99, 102, 241, 0.08);
}

.cfinder-hint {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.cfinder__features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.cfinder-feature {
  padding: 1.25rem;
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  background: var(--card-bg);
}

.cfinder-feature__icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.5rem;
}

.cfinder-feature h3 {
  font-size: 1rem;
  margin: 0 0 0.35rem;
}

.cfinder-feature p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* ── Loading ────────────────────────────────────────────────── */

.cfinder-loading {
  text-align: center;
  padding: 5rem 1rem;
}

.cfinder-loading__spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--accent, #6366f1);
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  animation: cfinder-spin 0.8s linear infinite;
}

@keyframes cfinder-spin {
  to { transform: rotate(360deg); }
}

.cfinder-loading h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
}

.cfinder-loading p {
  color: var(--text-secondary);
  margin: 0.25rem 0;
}

.cfinder-loading__sub {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ── Document ───────────────────────────────────────────────── */

.cfdoc {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.cfdoc__toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg-primary, #fff);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
}

[data-theme="dark"] .cfdoc__toolbar {
  background: var(--bg-primary, #0f0f12);
}

.cfdoc__back {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.4rem 0;
}

.cfdoc__back:hover {
  color: var(--accent);
}

.cfdoc__paper {
  background: var(--card-bg, #fff);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.06),
    0 8px 32px rgba(0, 0, 0, 0.04);
  padding: 2.5rem 2.75rem;
  position: relative;
}

[data-theme="dark"] .cfdoc__paper {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.cfdoc__paper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #6366f1, #a855f7, #ec4899);
  border-radius: 4px 4px 0 0;
}

.cfdoc__fallback-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: rgba(245, 158, 11, 0.15);
  color: #d97706;
  margin-bottom: 0.75rem;
}

.cfdoc-sources-banner {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.85rem 1rem;
  margin-bottom: 1.5rem;
  border-radius: 10px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  font-size: 0.875rem;
  line-height: 1.5;
}

.cfdoc-sources-banner__icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.cfdoc-sources-banner__text strong {
  color: var(--text-primary);
}

.cfdoc-sources-banner__notes {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.cfdoc__kicker {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent, #6366f1);
  margin: 0 0 0.5rem;
}

.cfdoc__title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}

.cfdoc__subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin: 0 0 1rem;
  font-style: italic;
}

.cfdoc__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
}

.cfdoc__tag {
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent);
}

.cfdoc__sources {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: auto;
}

.cfdoc-overview {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-primary);
  margin-bottom: 1.75rem;
  padding: 1rem 1.25rem;
  background: var(--surface-2, rgba(0, 0, 0, 0.03));
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
}

.cfdoc-overview p {
  margin: 0;
}

.cfdoc-oneliner {
  margin-bottom: 2rem;
  padding: 1rem 1.25rem;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(168, 85, 247, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.cfdoc-oneliner__label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.cfdoc-oneliner p {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.5;
}

.cfdoc-section {
  margin-bottom: 2rem;
}

.cfdoc-section__heading {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--text-primary);
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border-subtle);
}

.cfdoc-section__body p {
  margin: 0 0 0.75rem;
  line-height: 1.75;
  color: var(--text-primary);
}

.cfdoc-list {
  margin: 0 0 0.75rem;
  padding-left: 1.25rem;
  line-height: 1.7;
}

.cfdoc-panel {
  margin-bottom: 2rem;
  padding-top: 0.5rem;
}

.cfdoc-panel h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  margin: 0 0 1rem;
  color: var(--text-primary);
}

.cfdoc-panel__lead {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: -0.5rem 0 1.25rem;
  line-height: 1.5;
}

/* ── From your notes cards ─────────────────────────────────── */

.cfdoc-panel--from-notes {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.05), rgba(59, 130, 246, 0.04));
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: 14px;
  padding: 1.5rem 1.5rem 1.25rem;
}

.cfdoc-note-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cfdoc-note-card {
  background: var(--card-bg, #fff);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.cfdoc-note-card__head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.cfdoc-note-card__icon {
  font-size: 1.35rem;
  flex-shrink: 0;
  line-height: 1;
}

.cfdoc-note-card__title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.15rem;
  color: var(--text-primary);
}

.cfdoc-note-card__subject {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.cfdoc-note-card__bullets {
  margin: 0;
  padding-left: 1.25rem;
  line-height: 1.75;
  font-size: 0.925rem;
}

.cfdoc-note-card__bullets li {
  margin-bottom: 0.4rem;
}

.cfdoc-note-card__bullets li::marker {
  color: var(--accent);
}

/* ── Premium cards ─────────────────────────────────────────── */

.cfdoc-premium-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.cfdoc-premium-card {
  border-radius: 12px;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--border-subtle);
  background: var(--surface-2);
  position: relative;
  overflow: hidden;
}

.cfdoc-premium-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.cfdoc-premium-card--0::before { background: linear-gradient(90deg, #6366f1, #818cf8); }
.cfdoc-premium-card--1::before { background: linear-gradient(90deg, #ec4899, #f472b6); }
.cfdoc-premium-card--2::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.cfdoc-premium-card--3::before { background: linear-gradient(90deg, #10b981, #34d399); }

.cfdoc-premium-card__head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.cfdoc-premium-card__icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.cfdoc-premium-card__head h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.cfdoc-premium-card__bullets {
  margin: 0;
  padding-left: 1.1rem;
  line-height: 1.65;
  font-size: 0.875rem;
}

.cfdoc-premium-card__bullets li {
  margin-bottom: 0.35rem;
}

.cfdoc-premium-card__highlight {
  margin: 0.75rem 0 0;
  padding: 0.5rem 0.65rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent);
  border-left: 3px solid var(--accent);
}

/* ── Revision cards ────────────────────────────────────────── */

.cfdoc-rev-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
}

.cfdoc-rev-card {
  border-radius: 10px;
  padding: 1rem 1.1rem;
  border: 1px dashed var(--border-subtle);
  background: var(--surface-2);
}

.cfdoc-rev-card--0 {
  border-color: rgba(99, 102, 241, 0.35);
  background: rgba(99, 102, 241, 0.06);
}

.cfdoc-rev-card--1 {
  border-color: rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.06);
}

.cfdoc-rev-card--2 {
  border-color: rgba(168, 85, 247, 0.35);
  background: rgba(168, 85, 247, 0.06);
}

.cfdoc-rev-card__title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 0.6rem;
}

.cfdoc-rev-card__body {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--text-primary);
}

.cfdoc-rev-card__body p {
  margin: 0 0 0.5rem;
}

.cfdoc-rev-card__body ul {
  margin: 0;
  padding-left: 1.1rem;
}

/* ── Data tables ───────────────────────────────────────────── */

.cfdoc-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 0.5rem;
}

.cfdoc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  line-height: 1.5;
}

.cfdoc-table th,
.cfdoc-table td {
  padding: 0.65rem 0.85rem;
  text-align: left;
  border: 1px solid var(--border-subtle);
  vertical-align: top;
}

.cfdoc-table th {
  background: rgba(99, 102, 241, 0.1);
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.cfdoc-table tbody tr:nth-child(even) {
  background: var(--surface-2, rgba(0, 0, 0, 0.02));
}

.cfdoc-table__title {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 0.6rem;
  color: var(--text-primary);
}

.cfdoc-tables {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.cfdoc-table-wrap {
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-2);
}

.cfdoc-section--table .cfdoc-section__body {
  margin-top: 0.5rem;
}

.cfdoc-list--section li {
  margin-bottom: 0.45rem;
}

/* ── Practice questions ────────────────────────────────────── */

.cfdoc-panel--practice {
  background: rgba(168, 85, 247, 0.04);
  border: 1px solid rgba(168, 85, 247, 0.18);
  border-radius: 14px;
  padding: 1.5rem;
}

.cfdoc-practice-group {
  margin-bottom: 1.25rem;
}

.cfdoc-practice-group:last-child {
  margin-bottom: 0;
}

.cfdoc-practice-group__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin: 0 0 0.65rem;
}

.cfdoc-practice {
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  background: var(--card-bg, #fff);
  margin-bottom: 0.5rem;
  overflow: hidden;
}

.cfdoc-practice summary {
  padding: 0.8rem 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

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

.cfdoc-practice__badge {
  flex-shrink: 0;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.cfdoc-practice__badge--easy {
  background: rgba(34, 197, 94, 0.15);
  color: #16a34a;
}

.cfdoc-practice__badge--medium {
  background: rgba(245, 158, 11, 0.15);
  color: #d97706;
}

.cfdoc-practice__badge--hard {
  background: rgba(239, 68, 68, 0.15);
  color: #dc2626;
}

.cfdoc-practice__num {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--accent);
  font-size: 0.8rem;
}

.cfdoc-practice__q {
  flex: 1;
  font-weight: 500;
}

.cfdoc-practice__answer {
  padding: 0 1rem 0.9rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-2);
}

.cfdoc-practice__answer strong {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0.65rem 0 0.35rem;
}

.cfdoc-practice__answer p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--text-primary);
}

.cfdoc-panel--facts {
  background: rgba(34, 197, 94, 0.06);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
}

.cfdoc-facts {
  margin: 0;
  padding-left: 1.25rem;
  line-height: 1.8;
}

.cfdoc-facts li {
  margin-bottom: 0.35rem;
}

.cfdoc-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 2px solid var(--accent);
  margin-left: 0.5rem;
  padding-left: 1.25rem;
}

.cfdoc-timeline__item {
  position: relative;
  padding: 0.5rem 0 1rem;
}

.cfdoc-timeline__item::before {
  content: '';
  position: absolute;
  left: -1.45rem;
  top: 0.85rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.cfdoc-timeline__date {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.15rem;
}

.cfdoc-timeline__event {
  font-size: 0.95rem;
  line-height: 1.5;
}

.cfdoc-revision-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.cfdoc-revision-block {
  padding: 1rem 1.15rem;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-2);
}

.cfdoc-revision-block h3 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 0.6rem;
}

.cfdoc-revision-block ul {
  margin: 0;
  padding-left: 1.1rem;
  line-height: 1.65;
  font-size: 0.9rem;
}

.cfdoc-revision-block p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
}

.cfdoc-revision-block--prelims {
  border-color: rgba(59, 130, 246, 0.3);
  background: rgba(59, 130, 246, 0.06);
}

.cfdoc-revision-block--mains {
  border-color: rgba(168, 85, 247, 0.3);
  background: rgba(168, 85, 247, 0.06);
}

.cfdoc-recall-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cfdoc-recall {
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
}

.cfdoc-recall summary {
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-weight: 500;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

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

.cfdoc-recall__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.cfdoc-recall p {
  margin: 0;
  padding: 0 1rem 0.85rem 2.85rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cfdoc-confusion {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background: var(--surface-2);
  margin-bottom: 0.5rem;
}

.cfdoc-confusion__wrong {
  font-size: 0.875rem;
  color: #dc2626;
}

.cfdoc-confusion__correct {
  font-size: 0.875rem;
  color: #16a34a;
  font-weight: 500;
}

.cfdoc-related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cfdoc-related {
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--accent);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s;
}

.cfdoc-related:hover {
  background: rgba(99, 102, 241, 0.1);
  border-color: var(--accent);
}

.cfdoc-sources {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.cfdoc-source {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: background 0.15s;
}

.cfdoc-source:hover {
  background: var(--surface-2);
}

.cfdoc-source span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.cfdoc__footer {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.cfdoc__footer p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
}

/* ── Print ──────────────────────────────────────────────────── */

@media print {
  .cfdoc__toolbar,
  .sidebar,
  .navbar,
  .cfdoc-related,
  .cfdoc-source,
  #cfdocImportKbBtn,
  #cfdocViewKbBtn {
    display: none !important;
  }

  .cfdoc__paper {
    box-shadow: none;
    border: none;
    padding: 0;
  }

  .cfdoc-recall[open] summary {
    font-weight: 700;
  }
}

@media (max-width: 640px) {
  .cfinder__input-wrap {
    flex-wrap: wrap;
  }

  .cfinder__submit {
    width: 100%;
  }

  .cfdoc__paper {
    padding: 1.5rem 1.25rem;
  }

  .cfdoc__sources {
    margin-left: 0;
    width: 100%;
  }
}

/* ── Import modal ───────────────────────────────────────────── */

.cfinder-import-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

.cfinder-import-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.cfinder-import-modal {
  width: min(480px, 100%);
  background: var(--card-bg, #fff);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.cfinder-import-modal__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.cfinder-import-modal__head h2 {
  margin: 0;
  font-size: 1.1rem;
}

.cfinder-import-modal__close {
  border: none;
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.25rem;
}

.cfinder-import-modal__body {
  padding: 1.25rem;
}

.cfinder-import__areas {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
}

.cfinder-import__hint,
.cfinder-import__warn {
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0 0 1rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
}

.cfinder-import__hint {
  background: var(--surface-2);
  color: var(--text-secondary);
}

.cfinder-import__warn {
  background: rgba(245, 158, 11, 0.12);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.cfinder-import__field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.cfinder-import__field span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.cfinder-import__input,
.cfinder-import__select {
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: 0.95rem;
}

.cfinder-import__checklist {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.cfinder-import-modal__foot {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
}