/* ============================================================
   Unified Revision Hub
   ============================================================ */

.revhub {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  animation: fadeInUp var(--duration-slow) var(--ease-out) both;
}

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

.revhub__back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px 6px 6px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: background-color var(--duration-fast) var(--ease-out);
}

.revhub__back:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.revhub__head-text { flex: 1; min-width: 220px; }

.revhub__badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #5a3d8f;
  background: color-mix(in srgb, #7c3aed 14%, transparent);
  border: 1px solid color-mix(in srgb, #7c3aed 28%, transparent);
}

.revhub__title {
  margin: 10px 0 6px;
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-family: Georgia, 'Times New Roman', serif;
}

.revhub__subtitle {
  margin: 0;
  color: var(--color-text-secondary);
}

.revhub__filters {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.revhub__filter-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.revhub__filter-select {
  min-width: 180px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
}

/* Stats */
.revhub-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.revhub-stat {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  text-align: center;
}

.revhub-stat--primary {
  background: linear-gradient(135deg, color-mix(in srgb, #7c3aed 12%, var(--color-bg-elevated)), var(--color-bg-elevated));
  border-color: color-mix(in srgb, #7c3aed 30%, var(--color-border));
}

.revhub-stat__val {
  display: block;
  font-size: 1.75rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  line-height: 1.1;
}

.revhub-stat--primary .revhub-stat__val { color: #7c3aed; }

.revhub-stat__label {
  display: block;
  margin-top: 4px;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Breakdown chips */
.revhub-breakdown {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.revhub-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}

.revhub-chip__count {
  font-weight: var(--font-weight-bold);
}

.revhub-chip__label {
  color: var(--color-text-secondary);
}

/* Actions */
.revhub__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

/* Panels */
.revhub__panel {
  margin-bottom: 28px;
  padding: 22px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
}

.revhub__panel-head h2 {
  margin: 0 0 4px;
  font-size: 1.15rem;
}

.revhub__panel-head p {
  margin: 0 0 18px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.revhub-empty {
  margin: 0;
  padding: 24px;
  text-align: center;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

/* Queue items */
.revhub__queue,
.revhub-section__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.revhub-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}

.revhub-item:hover {
  border-color: color-mix(in srgb, var(--color-accent) 40%, var(--color-border));
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

.revhub-item--compact {
  padding: 10px 12px;
}

.revhub-item__main {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.revhub-item__priority {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}

.revhub-item__priority--high { background: #dc2626; box-shadow: 0 0 0 3px color-mix(in srgb, #dc2626 25%, transparent); }
.revhub-item__priority--medium { background: #d97706; box-shadow: 0 0 0 3px color-mix(in srgb, #d97706 25%, transparent); }
.revhub-item__priority--low { background: #16a34a; box-shadow: 0 0 0 3px color-mix(in srgb, #16a34a 25%, transparent); }

.revhub-item__body { min-width: 0; flex: 1; }

.revhub-item__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 4px;
}

.revhub-item__type {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.revhub-item__subject {
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--color-bg-hover);
  color: var(--color-text-secondary);
}

.revhub-item__title {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
}

.revhub-item--compact .revhub-item__title {
  font-size: var(--font-size-sm);
}

.revhub-item__reason {
  margin: 4px 0 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.revhub-item__correction {
  margin: 6px 0 0;
  font-size: var(--font-size-sm);
  color: #7c3aed;
  font-style: italic;
}

.revhub-item__actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

/* Sections grid */
.revhub__sections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.revhub-section {
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

.revhub-section__head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.revhub-section__head h3 {
  margin: 0;
  flex: 1;
  font-size: var(--font-size-base);
}

.revhub-section__count {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

.revhub-section__more {
  margin: 8px 0 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-align: center;
}

@media (max-width: 768px) {
  .revhub-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .revhub-item {
    flex-direction: column;
    align-items: stretch;
  }

  .revhub-item__actions {
    justify-content: flex-end;
  }
}

/* Workspace module card accent */
.workspace-card--revision-hub .workspace-card__icon {
  color: #7c3aed;
  background: color-mix(in srgb, #7c3aed 12%, transparent);
}

.workspace-card--revision-hub:hover .workspace-card__icon {
  background: #7c3aed;
  color: #fff;
}