/* ============================================================
   Knowledge Gap Detection — analysis panel & dashboard
   ============================================================ */

/* ─── Post-answer gap panel (Feynman session) ─── */
.gap-panel {
  padding: 14px;
  margin-top: 12px;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-lg);
  animation: fadeInUp var(--duration-normal) var(--ease-out) both;
}

.gap-panel__title {
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin: 0 0 10px;
  color: var(--color-accent);
}

.gap-panel__profile {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  margin-bottom: 10px;
  font-size: var(--font-size-xs);
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
}

.gap-panel__profile strong {
  font-size: var(--font-size-base);
  color: var(--color-accent);
}

.gap-panel__mentor {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-style: italic;
  margin: 0 0 12px;
  line-height: 1.5;
}

.gap-panel__bars {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.gap-bar__header {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  margin-bottom: 3px;
}

.gap-bar__label {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.gap-bar__pct {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

.gap-bar__track {
  height: 6px;
  background: var(--color-bg-hover);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.gap-bar__fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--gradient-gold);
  transition: width var(--duration-slow) var(--ease-out);
}

.gap-bar--weak .gap-bar__fill { background: linear-gradient(90deg, #c0392b, #e74c3c); }
.gap-bar--partial .gap-bar__fill { background: linear-gradient(90deg, #d68910, #f1c40f); }
.gap-bar--strong .gap-bar__fill { background: var(--gradient-gold); }

.gap-bar__ascii {
  display: none;
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--color-text-tertiary);
  font-family: monospace;
}

@media (min-width: 900px) {
  .gap-bar__ascii { display: block; margin-top: 2px; }
}

.gap-panel__section {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.gap-panel__section--warn {
  background: color-mix(in srgb, #c0392b 6%, transparent);
  margin: 12px -14px -14px;
  padding: 12px 14px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  border-top-color: color-mix(in srgb, #c0392b 20%, var(--color-border));
}

.gap-panel__heading {
  font-size: 11px;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-tertiary);
  margin: 0 0 8px;
}

.gap-panel__missing,
.gap-panel__misc {
  list-style: none;
  margin: 0;
  padding: 0;
}

.gap-panel__missing li,
.gap-panel__misc li {
  padding: 6px 0;
  font-size: var(--font-size-xs);
  border-bottom: 1px solid var(--color-border);
}

.gap-panel__missing li:last-child,
.gap-panel__misc li:last-child {
  border-bottom: none;
}

.gap-link {
  display: inline;
  padding: 0;
  font-size: inherit;
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.gap-link:hover {
  color: var(--color-gold);
}

.gap-link__reason {
  display: block;
  color: var(--color-text-tertiary);
  font-size: 10px;
  margin-top: 2px;
}

.gap-misc__wrong {
  color: #c0392b;
  text-decoration: line-through;
  opacity: 0.85;
}

.gap-misc__fix {
  display: block;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.gap-panel__next {
  margin: 12px 0 0;
  padding: 8px 10px;
  font-size: var(--font-size-xs);
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
}

.gap-mini {
  margin-top: 8px;
  font-size: 10px;
}

.gap-mini__row {
  display: flex;
  justify-content: space-between;
  padding: 2px 0;
  color: var(--color-text-tertiary);
}

.gap-mini__val {
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
}

/* ─── Knowledge Gap Dashboard ─── */
.kgap-dashboard {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  animation: fadeInUp var(--duration-slow) var(--ease-out) both;
}

.kgap-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.kgap-header__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.kgap-header__text {
  flex: 1;
  min-width: 200px;
}

.kgap-header__crumb {
  font-size: var(--font-size-xs);
  color: var(--color-gold-dark);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: 4px;
}

.kgap-header__title {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  margin: 0 0 6px;
}

.kgap-header__sub {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.kgap-trend {
  padding: 8px 14px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
}

.kgap-trend--improving { color: #27ae60; background: rgba(39, 174, 96, 0.1); }
.kgap-trend--stable { color: var(--color-accent); background: var(--color-accent-soft); }
.kgap-trend--needs-work { color: #c0392b; background: rgba(192, 57, 43, 0.08); }

.kgap-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.kgap-stat {
  padding: 18px;
  text-align: center;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.kgap-stat__val {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
}

.kgap-stat__label {
  font-size: 10px;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kgap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.kgap-panel {
  padding: 20px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.kgap-panel--wide { grid-column: span 1; }
.kgap-panel--full { grid-column: 1 / -1; }

.kgap-panel h3 {
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  margin: 0 0 14px;
}

.kgap-subject-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.kgap-subject-list li {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--color-border);
}

.kgap-subject-list strong {
  color: var(--color-accent);
}

.kgap-mistake {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}

.kgap-mistake__pair em {
  color: var(--color-text-tertiary);
  font-style: normal;
}

.kgap-mistake__count {
  float: right;
  font-weight: var(--font-weight-bold);
  color: #c0392b;
}

.kgap-mistake__fix {
  margin: 4px 0 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.kgap-revision-group {
  margin-bottom: 14px;
}

.kgap-revision-group h4 {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 8px;
}

.kgap-revision-group--high h4 { color: #c0392b; }
.kgap-revision-group--medium h4 { color: #d68910; }
.kgap-revision-group--low h4 { color: var(--color-text-tertiary); }

.kgap-revision-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--font-size-sm);
}

.kgap-revision-group li {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
}

.kgap-profiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.kgap-profile-card {
  padding: 14px;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.kgap-profile-card header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.kgap-profile-card h4 {
  font-size: var(--font-size-sm);
  margin: 0;
}

.kgap-profile-card__score {
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

.kgap-profile-card__meta {
  font-size: 10px;
  color: var(--color-text-tertiary);
  margin: 4px 0 8px;
}

.kgap-profile-card__bars {
  display: flex;
  gap: 4px;
  height: 4px;
}

.kgap-profile-bar {
  flex: 1;
  background: var(--color-bg-hover);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.kgap-profile-bar::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--pct, 0%);
  background: var(--gradient-gold);
}

.kgap-empty {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  font-style: italic;
}

.workspace-card--knowledge-gap .workspace-card__icon {
  background: var(--gradient-gold);
  color: var(--color-royal-deep);
  border: none;
}

.feynman-report__section--full {
  grid-column: 1 / -1;
}

.feynman-report__grid .gap-panel__bars {
  display: flex;
  flex-direction: column;
  gap: 8px;
}