/* ============================================================
   Global Study Dashboard
   ============================================================ */

.global-dashboard {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 28px 48px;
  animation: fadeInUp var(--duration-slow) var(--ease-out) both;
}

/* ── Header ── */
.dash-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.dash-header__greeting {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  margin-bottom: 4px;
}

.dash-header__title {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-display);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

.dash-header__date {
  margin-top: 6px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.dash-header__pill {
  display: inline-flex;
  padding: 8px 14px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  background: var(--color-accent-soft);
  border: 1px solid color-mix(in srgb, var(--color-accent) 20%, var(--color-border));
  border-radius: var(--radius-full);
}

/* ── Stat cards ── */
.dash-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

.dash-stat {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  transition:
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.dash-stat:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.dash-stat__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.dash-stat--forest .dash-stat__icon {
  color: var(--color-accent);
  background: var(--color-accent-soft);
}

.dash-stat--sage .dash-stat__icon {
  color: #4e6b5c;
  background: color-mix(in srgb, #4e6b5c 12%, var(--color-bg-subtle));
}

.dash-stat--olive .dash-stat__icon {
  color: #5c6b4e;
  background: color-mix(in srgb, #5c6b4e 12%, var(--color-bg-subtle));
}

.dash-stat--amber .dash-stat__icon {
  color: #7c6b4a;
  background: color-mix(in srgb, #7c6b4a 12%, var(--color-bg-subtle));
}

.dash-stat__value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  color: var(--color-text-primary);
}

.dash-stat__label {
  margin-top: 4px;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

/* ── Layout grid ── */
.dash-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 20px;
  align-items: start;
}

.dash-grid__main,
.dash-grid__side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ── Panels ── */
.dash-panel {
  padding: 22px 24px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}

.dash-panel__head {
  margin-bottom: 18px;
}

.dash-panel__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.dash-panel__subtitle {
  margin-top: 4px;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* ── Pie charts ── */
.dash-charts-row {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  flex-wrap: wrap;
}

.dash-chart-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  flex: 1;
  min-width: 180px;
}

.dash-chart-block--secondary {
  flex: 0 0 auto;
  padding-left: 20px;
  border-left: 1px solid var(--color-border);
}

.dash-chart-block__label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.dash-pie {
  width: 100%;
  max-width: 200px;
  height: auto;
}

.dash-pie__empty {
  fill: var(--color-bg-subtle);
  stroke: var(--color-border);
  stroke-width: 1;
}

.dash-pie__slice {
  transition: opacity var(--duration-fast) var(--ease-out);
}

.dash-pie:hover .dash-pie__slice {
  opacity: 0.85;
}

.dash-legend {
  width: 100%;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dash-legend--compact {
  max-width: 160px;
}

.dash-legend__item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-xs);
}

.dash-legend__swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.dash-legend__name {
  flex: 1;
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dash-legend__count {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.dash-legend__empty {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* ── Revision progress ── */
.dash-revision {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
}

.dash-revision__ring {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.dash-ring {
  width: 128px;
  height: 128px;
}

.dash-ring__track {
  stroke: var(--color-bg-subtle);
}

.dash-ring__progress {
  stroke: var(--color-accent);
  stroke-linecap: round;
  transition: stroke-dashoffset var(--duration-slow) var(--ease-out);
}

.dash-ring__label {
  font-size: 22px;
  font-weight: var(--font-weight-bold);
  fill: var(--color-text-primary);
}

.dash-revision__stats {
  display: flex;
  gap: 20px;
}

.dash-revision__stat {
  text-align: center;
}

.dash-revision__stat-value {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.dash-revision__stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.dash-subject-bars {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 220px;
  overflow-y: auto;
  padding-right: 4px;
}

.dash-subject-bar__header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
  font-size: var(--font-size-xs);
}

.dash-subject-bar__name {
  color: var(--color-text-secondary);
}

.dash-subject-bar__pct {
  color: var(--color-text-tertiary);
}

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

.dash-subject-bar__fill {
  display: block;
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--duration-slow) var(--ease-out);
}

.dash-subject-bar__fill--empty {
  width: 0 !important;
}

/* ── Recent notes ── */
.dash-note-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dash-note-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition:
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
}

.dash-note-row:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

.dash-note-row__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.dash-note-row__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dash-note-row__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dash-note-row__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.dash-note-row__chevron {
  flex-shrink: 0;
  color: var(--color-text-tertiary);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.dash-note-row:hover .dash-note-row__chevron {
  opacity: 1;
}

/* ── Quick actions ── */
.dash-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.dash-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 14px;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition:
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.dash-action:hover:not(:disabled) {
  background: var(--color-accent-soft);
  border-color: color-mix(in srgb, var(--color-accent) 30%, var(--color-border));
  transform: translateY(-1px);
}

.dash-action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.dash-action__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-accent);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-sm);
}

.dash-action__label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
}

/* ── Continue studying ── */
.dash-continue {
  display: block;
  width: 100%;
  padding: 18px;
  text-align: left;
  background: linear-gradient(
    135deg,
    var(--color-accent-soft) 0%,
    var(--color-bg-subtle) 100%
  );
  border: 1px solid color-mix(in srgb, var(--color-accent) 25%, var(--color-border));
  border-radius: var(--radius-md);
  transition:
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.dash-continue:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.dash-continue--empty {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

.dash-continue__badge {
  display: inline-block;
  padding: 3px 8px;
  margin-bottom: 10px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-full);
}

.dash-continue__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

.dash-continue__preview {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dash-continue__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
}

/* ── Recent activity ── */
.dash-activity {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 280px;
  overflow-y: auto;
}

.dash-activity__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.dash-activity__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.dash-activity__icon--note {
  color: var(--color-accent);
  background: var(--color-accent-soft);
}

.dash-activity__icon--keyword {
  color: #5c6b4e;
  background: color-mix(in srgb, #5c6b4e 12%, var(--color-bg-subtle));
}

.dash-activity__icon--concept {
  color: #4e6b5c;
  background: color-mix(in srgb, #4e6b5c 12%, var(--color-bg-subtle));
}

.dash-activity__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dash-activity__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dash-activity__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.dash-empty {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  line-height: var(--line-height-relaxed);
}

/* ── Responsive ── */
@media (max-width: 1100px) {
  .dash-grid {
    grid-template-columns: 1fr;
  }

  .dash-grid__side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .dash-panel--continue {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .global-dashboard {
    padding: 20px 16px 32px;
  }

  .dash-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .dash-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .dash-grid__side {
    grid-template-columns: 1fr;
  }

  .dash-revision {
    grid-template-columns: 1fr;
  }

  .dash-chart-block--secondary {
    padding-left: 0;
    border-left: none;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    width: 100%;
  }
}

@media (max-width: 480px) {
  .dash-stats {
    grid-template-columns: 1fr;
  }

  .dash-actions {
    grid-template-columns: 1fr;
  }
}

.dash-note-row__dot--pin,
.dash-note-row__dot--star {
  font-size: 12px;
  line-height: 1;
  background: transparent;
}

.dash-note-row__dot--star {
  color: #c4a035;
}