/* Timeline View Styles */

/* Timeline Container */
#timeline-view {
  position: fixed;
  top: 44px; /* Below mode toggle bar */
  left: 0;
  right: 0;
  bottom: 0;
  display: none; /* Hidden by default, shown when timeline mode is active */
  flex-direction: column;
  background: var(--bg-tertiary, var(--bg-card));
  z-index: 50;
}

#timeline-view.visible,
#timeline-view[style*="flex"] {
  display: flex !important;
}

/* Header */
.timeline-header {
  padding: var(--space-3) var(--space-4);
  background: var(--bg-secondary, var(--bg-card));
  border-bottom: 1px solid var(--border-color, var(--bg-hover));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.timeline-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary, var(--slate-11));
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.timeline-title svg {
  width: 18px;
  height: 18px;
  color: var(--accent-color, var(--blue-9));
}

/* Filter Toggle Button */
.timeline-filter-toggle {
  background: transparent;
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
  paddingvar(--space-150) var(--space-250);
  cursor: pointer;
  color: var(--text-secondary, var(--text-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.timeline-filter-toggle:hover {
  background: var(--bg-primary, var(--bg-page));
  color: var(--text-primary, var(--slate-11));
  border-color: var(--accent-color, var(--blue-9));
}

.timeline-filter-toggle svg {
  width: 14px;
  height: 14px;
}

/* Filter Bar */
.timeline-filter-bar {
  padding: var(--space-3) var(--space-4);
  background: var(--bg-secondary, var(--bg-card));
  border-bottom: 1px solid var(--border-color, var(--bg-hover));
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
  max-height: 200px;
  overflow-y: auto;
  transition: max-height 0.3s ease;
}

.timeline-filter-bar.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-bottom: none;
  overflow: hidden;
}

.timeline-filter-section {
  flex: 1;
  min-width: 200px;
}

.timeline-filter-section-title {
  font-size: var(--text-2xs);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--text-muted, var(--text-muted));
  margin: var(--space-2);
}

/* Category Checkboxes */
.timeline-category-checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.timeline-category-checkbox {
  display: flex;
  align-items: center;
  gapvar(--space-150);
  paddingvar(--space-150) var(--space-250);
  background: var(--bg-primary, var(--bg-page));
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
  cursor: pointer;
  transition: all 0.2s;
  font-size: var(--text-xs);
  color: var(--text-secondary, var(--text-secondary));
}

.timeline-category-checkbox:hover {
  border-color: var(--accent-color, var(--blue-9));
  background: var(--bg-tertiary, var(--bg-card));
}

.timeline-category-checkbox input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--accent-color, var(--blue-9));
  cursor: pointer;
}

.timeline-category-checkbox:has(input:checked) {
  border-color: var(--accent-color, var(--blue-9));
  background: var(--blue-muted);
  color: var(--text-primary, var(--slate-11));
}

.timeline-category-checkbox input[type="checkbox"]:disabled {
  accent-color: var(--text-muted, var(--text-muted));
  opacity: 0.5;
}

.timeline-category-label {
  font-weight: 500;
}

.timeline-category-icon {
  font-size: var(--text-sm);
}

/* Filter Controls */
.timeline-filter-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.timeline-filters {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  flex: 1;
}

.timeline-filter-select {
  background: var(--bg-primary, var(--bg-page));
  border: 1px solid var(--border-color, var(--bg-hover));
  color: var(--text-primary, var(--slate-11));
  paddingvar(--space-150) var(--space-250);
  border-radius: var(--radius-control);
  font-size: var(--text-sm);
  min-width: 100px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.timeline-filter-select:hover {
  border-color: var(--accent-color, var(--blue-9));
}

.timeline-filter-select:focus {
  outline: none;
  border-color: var(--accent-color, var(--blue-9));
  box-shadow: 0 0 0 2px var(--blue-border);
}

.timeline-search {
  background: var(--bg-primary, var(--bg-page));
  border: 1px solid var(--border-color, var(--bg-hover));
  color: var(--text-primary, var(--slate-11));
  padding: 6px 10px 6px var(--space-8);
  border-radius: var(--radius-control);
  font-size: var(--text-sm);
  min-width: 200px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 8px center;
  transition: border-color 0.2s;
}

.timeline-search:hover {
  border-color: var(--accent-color, var(--blue-9));
}

.timeline-search:focus {
  outline: none;
  border-color: var(--accent-color, var(--blue-9));
  box-shadow: 0 0 0 2px var(--blue-border);
}

.timeline-search::placeholder {
  color: var(--text-muted, var(--text-muted));
}

/* Timeline Events List */
.timeline-events {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.timeline-events::-webkit-scrollbar {
  width: 6px;
}

.timeline-events::-webkit-scrollbar-track {
  background: var(--bg-secondary, var(--bg-card));
}

.timeline-events::-webkit-scrollbar-thumb {
  background: var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
}

.timeline-events::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted, var(--text-muted));
}

/* Timeline Event Card */
.timeline-event {
  background: var(--bg-secondary, var(--bg-card));
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-card);
  padding: var(--space-3);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.timeline-event::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--event-color, var(--blue-9));
}

.timeline-event:hover {
  border-color: var(--accent-color, var(--blue-9));
  transform: translateX(2px);
  box-shadow: 0 2px 8px var(--shadow);
}

.timeline-event.severity-critical {
  border-color: var(--color-critical, var(--alert));
}

.timeline-event.severity-critical::before {
  background: var(--color-critical, var(--alert));
}

.timeline-event.severity-warning {
  border-color: var(--color-warning, var(--warn));
}

.timeline-event.severity-warning::before {
  background: var(--color-warning, var(--warn));
}

/* Event Header */
.timeline-event-header {
  display: flex;
  align-items: flex-start;
  gapvar(--space-250);
  margin-bottom: var(--space-150);
}

.timeline-event-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-control);
  background: var(--event-color-bg, var(--blue-muted));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--event-color, var(--blue-9));
}

.timeline-event-icon svg {
  width: 16px;
  height: 16px;
}

.timeline-event-content {
  flex: 1;
  min-width: 0;
}

.timeline-event-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary, var(--slate-11));
  marginvar(--space-half);
  line-height: 1.3;
}

.timeline-event-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  font-size: var(--text-xs);
  color: var(--text-muted, var(--text-muted));
}

.timeline-event-time {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.timeline-event-zone {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--accent-color, var(--blue-9));
}

.timeline-event-person {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Event Details */
.timeline-event-details {
  font-size: var(--text-sm);
  color: var(--text-secondary, var(--text-secondary));
  margin-top: var(--space-150);
  line-height: 1.4;
}

/* Event Actions */
.timeline-event-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-color, var(--bg-hover));
}

.timeline-feedback-btn {
  background: transparent;
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
  padding: var(--space-1) var(--space-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-2xs);
  color: var(--text-muted, var(--text-muted));
  transition: all 0.2s;
}

.timeline-feedback-btn:hover {
  background: var(--bg-primary, var(--bg-page));
  color: var(--text-primary, var(--slate-11));
  border-color: var(--text-muted, var(--text-muted));
}

.timeline-feedback-btn.positive:hover {
  color: var(--color-success, var(--ok));
  border-color: var(--color-success, var(--ok));
}

.timeline-feedback-btn.negative:hover {
  color: var(--color-critical, var(--alert));
  border-color: var(--color-critical, var(--alert));
}

.timeline-feedback-btn svg {
  width: 14px;
  height: 14px;
}

.timeline-feedback-btn.active {
  background: var(--event-color-bg, var(--blue-muted));
  border-color: var(--event-color, var(--blue-9));
  color: var(--event-color, var(--blue-9));
}

.timeline-feedback-btn.active.positive {
  background: var(--ok-bg);
  border-color: var(--color-success, var(--ok));
  color: var(--color-success, var(--ok));
}

.timeline-feedback-btn.active.negative {
  background: var(--alert-bg);
  border-color: var(--color-critical, var(--alert));
  color: var(--color-critical, var(--alert));
}

.timeline-explain-btn {
  background: transparent;
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
  padding: var(--space-1) var(--space-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-2xs);
  color: var(--text-muted, var(--text-muted));
  transition: all 0.2s;
}

.timeline-explain-btn:hover {
  background: var(--bg-primary, var(--bg-page));
  color: var(--text-secondary, var(--text-secondary));
  border-color: var(--text-muted, var(--text-muted));
}

.timeline-seek-btn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
  padding: var(--space-1) var(--space-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-2xs);
  color: var(--accent-color, var(--blue-9));
  transition: all 0.2s;
}

.timeline-seek-btn:hover {
  background: var(--blue-muted);
  border-color: var(--accent-color, var(--blue-9));
}

.timeline-seek-btn svg {
  width: 14px;
  height: 14px;
}

/* Event Type Colors */
.timeline-event[data-type="zone_entry"] {
  --event-color: var(--ok);
  --event-color-bg: var(--ok-bg);
}

.timeline-event[data-type="zone_exit"] {
  --event-color: var(--alert);
  --event-color-bg: var(--alert-bg);
}

.timeline-event[data-type="ZoneTransition"] {
  --event-color: var(--warn);
  --event-color-bg: var(--warn-bg);
}

.timeline-event[data-type="portal_crossing"] {
  --event-color: var(--blue-9);
  --event-color-bg: var(--blue-muted);
}

.timeline-event[data-type="anomaly"] {
  --event-color: var(--alert);
  --event-color-bg: var(--alert-bg);
}

.timeline-event[data-type="AnomalyDetected"] {
  --event-color: var(--alert);
  --event-color-bg: var(--alert-bg);
}

.timeline-event[data-type="anomaly_detected"] {
  --event-color: var(--alert);
  --event-color-bg: var(--alert-bg);
}

.timeline-event[data-type="FallDetected"] {
  --event-color: var(--alert);
  --event-color-bg: var(--alert-bg);
}

.timeline-event[data-type="security_alert"] {
  --event-color: var(--warn);
  --event-color-bg: var(--warn-bg);
}

.timeline-event[data-type="learning_milestone"] {
  --event-color: var(--blue-10);
  --event-color-bg: var(--blue-muted);
}

.timeline-event[data-type="system_event"] {
  --event-color: var(--slate-9);
  --event-color-bg: var(--bg-active);
}

.timeline-event[data-type="sleep_session_end"] {
  --event-color: var(--blue-10);
  --event-color-bg: var(--blue-muted);
}

/* Loading States */
.timeline-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  color: var(--text-muted, var(--text-muted));
  font-size: var(--text-sm);
  gap: var(--space-2);
}

.timeline-loading-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color, var(--bg-hover));
  border-top-color: var(--accent-color, var(--blue-9));
  border-radius: 50%;
  animation: timeline-spin 1s linear infinite;
}

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

/* Empty State */
.timeline-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-6);
  color: var(--text-muted, var(--text-muted));
  text-align: center;
}

.timeline-empty svg {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.timeline-empty h3 {
  font-size: var(--text-base);
  margin: var(--space-2);
  color: var(--text-secondary, var(--text-secondary));
}

.timeline-empty p {
  font-size: var(--text-sm);
  margin: 0;
  max-width: 300px;
}

/* Load More Button */
.timeline-load-more {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
  margin-top: var(--space-2);
}

.timeline-load-more-btn {
  background: var(--bg-secondary, var(--bg-card));
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
  padding: var(--space-2) var(--space-4);
  color: var(--text-secondary, var(--text-secondary));
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all 0.2s;
}

.timeline-load-more-btn:hover {
  background: var(--bg-primary, var(--bg-page));
  border-color: var(--accent-color, var(--blue-9));
  color: var(--text-primary, var(--slate-11));
}

.timeline-load-more-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Event Count Badge */
.timeline-count {
  background: var(--accent-color, var(--blue-9));
  color: var(--text-on-accent);
  font-size: var(--text-2xs);
  font-weight: 600;
  paddingvar(--space-half) var(--space-150);
  border-radius: var(--radius-card);
  margin-left: var(--space-2);
}

/* New Event Animation */
.timeline-event.new-event {
  animation: timeline-slide-in 0.3s ease-out;
}

@keyframes timeline-slide-in {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Live Indicator */
.timeline-live-indicator {
  display: flex;
  align-items: center;
  gapvar(--space-150);
  font-size: var(--text-xs);
  color: var(--color-success, var(--ok));
  padding: var(--space-1) var(--space-2);
  background: var(--ok-bg);
  border-radius: var(--radius-control);
}

.timeline-live-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success, var(--ok));
  border-radius: 50%;
  animation: timeline-pulse 2s ease-in-out infinite;
}

@keyframes timeline-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

/* Feedback dismissed state */
.timeline-event.feedback-dismissed {
  opacity: 0.5;
  pointer-events: none;
}

/* Selected Event (tap-to-jump highlight) */
.timeline-event.timeline-event-selected {
  background: color-mix(in srgb, var(--blue-9) 12%, transparent);
  border-color: var(--blue-9) !important;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--blue-9) 25%, transparent),
              0 2px 12px color-mix(in srgb, var(--blue-9) 15%, transparent);
}

.timeline-event.timeline-event-selected::before {
  background: var(--blue-9);
  width: 4px;
}

.timeline-event.timeline-event-selected:hover {
  background: color-mix(in srgb, var(--blue-9) 18%, transparent);
}

/* Now Replaying Chip (in full-page timeline header) */
#timeline-now-replaying {
  display: none;
  align-items: center;
  gapvar(--space-150);
  paddingvar(--space-half) var(--space-250);
  margin-left: var(--space-2);
  background: color-mix(in srgb, var(--blue-9) 20%, transparent);
  color: var(--blue-11);
  border-radius: var(--radius-pill);
  font-size: var(--text-2xs);
  font-weight: 600;
  font-family: var(--font-mono, ui-monospace, monospace);
  white-space: nowrap;
  letter-spacing: 0.02em;
  animation: now-replaying-pulse 2s ease-in-out infinite;
}

.now-replaying-dot {
  width: 6px;
  height: 6px;
  background: var(--blue-9);
  border-radius: 50%;
  animation: timeline-pulse 1.5s ease-in-out infinite;
}

/* Secondary system events (expert mode - greyed out) */
.timeline-event.secondary {
  opacity: 0.6;
  font-size: 0.9em;
  padding: var(--space-2) var(--space-3);
}

.timeline-event.secondary .timeline-event-icon {
  width: 24px;
  height: 24px;
  font-size: var(--text-xs);
}

.timeline-event.secondary .timeline-event-title {
  font-size: var(--text-sm);
  color: var(--text-secondary, var(--text-secondary));
}

.timeline-event.secondary .timeline-event-meta {
  font-size: var(--text-2xs);
  color: var(--text-muted, var(--text-muted));
}

.timeline-event.secondary:hover {
  opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
  .timeline-header {
    flex-direction: column;
    align-items: stretch;
  }

  .timeline-filter-bar {
    flex-direction: column;
    gap: var(--space-3);
  }

  .timeline-filter-section {
    min-width: unset;
  }

  .timeline-filters {
    flex-direction: column;
    align-items: stretch;
  }

  .timeline-filter-select,
  .timeline-search {
    width: 100%;
    min-width: unset;
  }

  .timeline-event {
    paddingvar(--space-250);
  }

  .timeline-event-actions {
    flex-wrap: wrap;
  }
}

/* Custom Date Range */
.timeline-custom-date {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  padding: var(--space-2);
  background: var(--bg-primary, var(--bg-page));
  border-radius: var(--radius-control);
}

.timeline-date-input {
  background: var(--bg-secondary, var(--bg-card));
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
  color: var(--text-primary, var(--slate-11));
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-family: inherit;
  flex: 1;
}

.timeline-date-input::-webkit-calendar-picker-indicator {
  filter: invert(0.5);
  cursor: pointer;
}

.timeline-date-separator {
  color: var(--text-muted, var(--text-muted));
  font-size: var(--text-xs);
  padding: 0 4px;
}

.timeline-date-apply-btn {
  background: var(--accent-color, var(--blue-9));
  color: var(--bg-primary, var(--bg-page));
  border: none;
  border-radius: var(--radius-control);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

.timeline-date-apply-btn:hover {
  background: var(--blue-9);
}

/* ============================================
   Sidebar Timeline Panel Styles
   ============================================ */

/* Main Sidebar Panel Container */
.sidebar-panel {
  position: fixed;
  top: 44px; /* Below status bar */
  right: 0;
  width: 320px;
  height: calc(100vh - 44px);
  background: var(--bg-secondary, var(--bg-card));
  border-left: 1px solid var(--border-color, var(--bg-hover));
  display: flex;
  flex-direction: column;
  z-index: 60;
  transition: transform 0.3s ease, opacity 0.3s ease;
  box-shadow: -4px 0 20px var(--shadow);
}

.sidebar-panel.collapsed {
  transform: translateX(100%);
  opacity: 0;
  pointer-events: none;
}

/* Panel Header */
.sidebar-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-tertiary, var(--bg-card));
  border-bottom: 1px solid var(--border-color, var(--bg-hover));
  flex-shrink: 0;
}

.sidebar-panel-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary, var(--slate-11));
}

.sidebar-panel-title svg {
  color: var(--accent-color, var(--blue-9));
}

.sidebar-panel-actions {
  display: flex;
  gap: var(--space-1);
}

.sidebar-panel-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary, var(--text-secondary));
  paddingvar(--space-150);
  border-radius: var(--radius-control);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.sidebar-panel-btn:hover {
  background: var(--bg-primary, var(--bg-page));
  color: var(--text-primary, var(--slate-11));
}

/* Panel Content */
.sidebar-panel-content {
  flex: 1;
  overflow-y: auto;
  position: relative;
}

.sidebar-panel-content::-webkit-scrollbar {
  width: 4px;
}

.sidebar-panel-content::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-panel-content::-webkit-scrollbar-thumb {
  background: var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
}

.sidebar-panel-content::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted, var(--text-muted));
}

/* Timeline Events in Sidebar */
.sidebar-timeline-events {
  padding: var(--space-2);
  display: flex;
  flex-direction: column;
  gapvar(--space-150);
}

/* Compact Event Card for Sidebar */
.sidebar-timeline-event {
  background: var(--bg-primary, var(--bg-page));
  border: 1px solid var(--border-color, var(--bg-hover));
  border-radius: var(--radius-control);
  padding: var(--space-2) 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}

.sidebar-timeline-event::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--event-color, var(--blue-9));
}

.sidebar-timeline-event:hover {
  border-color: var(--accent-color, var(--blue-9));
  transform: translateX(-2px);
  box-shadow: 0 2px 6px var(--shadow);
}

.sidebar-timeline-event.severity-critical {
  border-color: var(--color-critical, var(--alert));
}

.sidebar-timeline-event.severity-critical::before {
  background: var(--color-critical, var(--alert));
}

.sidebar-timeline-event.severity-warning {
  border-color: var(--color-warning, var(--warn));
}

.sidebar-timeline-event.severity-warning::before {
  background: var(--color-warning, var(--warn));
}

.sidebar-timeline-event.new-event {
  animation: sidebarEventSlideIn 0.3s ease-out;
}

@keyframes sidebarEventSlideIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Event Icon */
.sidebar-timeline-event-icon {
  flex-shrink: 0;
  font-size: var(--text-base);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-muted);
  border-radius: var(--radius-control);
}

/* Event Content */
.sidebar-timeline-event-content {
  flex: 1;
  min-width: 0;
}

.sidebar-timeline-event-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary, var(--slate-11));
  line-height: 1.3;
  margin-bottom: var(--space-half);
  word-wrap: break-word;
}

.sidebar-timeline-event-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gapvar(--space-150);
  font-size: var(--text-2xs);
  color: var(--text-muted, var(--text-muted));
}

.sidebar-timeline-event-time {
  color: var(--text-secondary, var(--text-secondary));
}

.sidebar-timeline-event-zone {
  color: var(--accent-color, var(--blue-9));
}

.sidebar-timeline-event-person {
  color: var(--ok);
}

/* Event Actions */
.sidebar-timeline-event-actions {
  display: flex;
  gapvar(--space-half);
  flex-shrink: 0;
}

.sidebar-timeline-action-btn {
  background: transparent;
  border: none;
  color: var(--text-muted, var(--text-muted));
  padding: var(--space-1);
  border-radius: var(--radius-control);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  font-size: var(--text-xs);
  min-width: 24px;
  height: 24px;
}

.sidebar-timeline-action-btn:hover {
  background: var(--bg-tertiary, var(--bg-card));
  color: var(--text-secondary, var(--text-secondary));
}

.sidebar-timeline-action-btn.feedback-positive:hover {
  background: var(--ok-muted);
  color: var(--ok);
}

.sidebar-timeline-action-btn.feedback-negative:hover {
  background: var(--alert-muted);
  color: var(--alert);
}

.sidebar-timeline-action-btn.active {
  background: var(--accent-color, var(--blue-9));
  color: var(--bg-primary, var(--bg-page));
}

/* Feedback Dismissed State */
.sidebar-timeline-event.feedback-dismissed {
  opacity: 0.5;
  text-decoration: line-through;
}

/* Loading State */
.sidebar-timeline-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-5);
  color: var(--text-muted, var(--text-muted));
  gap: var(--space-3);
}

.sidebar-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-color, var(--bg-hover));
  border-top-color: var(--accent-color, var(--blue-9));
  border-radius: 50%;
  animation: sidebarSpin 0.8s linear infinite;
}

@keyframes sidebarSpin {
  to { transform: rotate(360deg); }
}

/* Empty State */
.sidebar-timeline-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-5);
  text-align: center;
  color: var(--text-muted, var(--text-muted));
}

.sidebar-timeline-empty svg {
  color: var(--border-color, var(--bg-hover));
  margin-bottom: var(--space-3);
}

.sidebar-timeline-empty h3 {
  font-size: var(--text-sm);
  color: var(--text-secondary, var(--text-secondary));
  margin: var(--space-1);
}

.sidebar-timeline-empty p {
  font-size: var(--text-xs);
  margin: 0;
}

/* Show Button (when panel is collapsed) */
.sidebar-show-btn {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  background: var(--bg-secondary, var(--bg-card));
  border: 1px solid var(--border-color, var(--bg-hover));
  border-right: none;
  border-radius: var(--radius-card) 0 0 var(--radius-card);
  padding: var(--space-3) var(--space-2);
  cursor: pointer;
  z-index: 59;
  transition: all 0.3s ease;
  box-shadow: -2px 0 8px var(--overlay);
}

.sidebar-show-btn:hover {
  background: var(--bg-tertiary, var(--bg-card));
  padding-right: var(--space-3);
}

.sidebar-show-btn svg {
  color: var(--text-secondary, var(--text-secondary));
}

.sidebar-show-btn.hidden {
  transform: translateY(-50%) translateX(100%);
  opacity: 0;
  pointer-events: none;
}

/* Virtual Spacers */
.timeline-spacer {
  flex-shrink: 0;
}

/* Event Type Colors */
.sidebar-timeline-event[data-type="zone_entry"] { --event-color: var(--ok); }
.sidebar-timeline-event[data-type="zone_exit"] { --event-color: var(--warn); }
.sidebar-timeline-event[data-type="portal_crossing"] { --event-color: var(--blue-10); }
.sidebar-timeline-event[data-type="detection"] { --event-color: var(--blue-9); }
.sidebar-timeline-event[data-type="presence_transition"] { --event-color: var(--blue-9); }
.sidebar-timeline-event[data-type="stationary_detected"] { --event-color: var(--blue-9); }
.sidebar-timeline-event[data-type="anomaly"] { --event-color: var(--alert); }
.sidebar-timeline-event[data-type="security_alert"] { --event-color: var(--alert); }
.sidebar-timeline-event[data-type="fall_alert"] { --event-color: var(--alert); }
.sidebar-timeline-event[data-type="node_online"] { --event-color: var(--ok); }
.sidebar-timeline-event[data-type="node_offline"] { --event-color: var(--slate-10); }
.sidebar-timeline-event[data-type="ota_update"] { --event-color: var(--blue-9); }
.sidebar-timeline-event[data-type="baseline_changed"] { --event-color: var(--blue-9); }
.sidebar-timeline-event[data-type="system"] { --event-color: var(--slate-9); }
.sidebar-timeline-event[data-type="learning_milestone"] { --event-color: var(--blue-8); }
.sidebar-timeline-event[data-type="anomaly_learned"] { --event-color: var(--blue-8); }

/* Responsive Design */
@media (max-width: 768px) {
  .sidebar-panel {
    width: 100%;
    max-width: 320px;
  }

  .sidebar-show-btn {
    display: none; /* Always show panel on mobile, use close button instead */
  }
}

/* Selected Event (tap-to-jump highlight) */
.sidebar-timeline-event.selected {
  background: color-mix(in srgb, var(--blue-9) 15%, transparent);
  border-left-color: var(--blue-9) !important;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--blue-9) 30%, transparent);
}

.sidebar-timeline-event.selected:hover {
  background: color-mix(in srgb, var(--blue-9) 20%, transparent);
}

/* Now Replaying Chip (in sidebar panel header) */
.now-replaying-chip {
  display: inline-flex;
  align-items: center;
  gapvar(--space-150);
  paddingvar(--space-half) var(--space-250);
  margin-left: var(--space-2);
  background: color-mix(in srgb, var(--blue-9) 20%, transparent);
  color: var(--blue-11);
  border-radius: var(--radius-pill);
  font-size: var(--text-2xs);
  font-weight: 600;
  font-family: var(--font-mono, ui-monospace, monospace);
  white-space: nowrap;
  letter-spacing: 0.02em;
  animation: now-replaying-pulse 2s ease-in-out infinite;
}

@keyframes now-replaying-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Secondary System Events (dimmed in expert mode) */
.sidebar-timeline-event.secondary {
  opacity: 0.6;
}

.sidebar-timeline-event.secondary:hover {
  opacity: 0.9;
}