/* ── Import shared form element styles ── */
@import url('/shared/styled-select.css');

/* ============================================
   Unified Navigation System
   Three-tab nav + side panel / overlay system
   Responsive: mobile, tablet, desktop
   ============================================ */

/* ── CSS Custom Properties ── */
:root {
  --unav-bg: #1a1a2e;
  --unav-bg-elevated: #252542;
  --unav-surface: #2d1b4e;
  --unav-surface-hover: #3d2b5e;
  --unav-surface-active: #4d3b6e;
  --unav-border: rgba(107, 74, 163, 0.4);
  --unav-border-strong: rgba(107, 74, 163, 0.7);
  --unav-text: #e2d5f0;
  --unav-text-muted: #9b8ab8;
  --unav-text-dim: #6b5a88;
  --unav-accent: #ffd700;
  --unav-accent-hover: #ffe44d;
  --unav-accent-glow: rgba(255, 215, 0, 0.15);
  --unav-tab-active: #6b4aa3;
  --unav-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --unav-radius: 12px;
  --unav-radius-sm: 8px;
  --unav-transition: 0.2s ease;
  --unav-panel-width: 50vw;
  --unav-panel-min: 420px;
  --unav-panel-max: 95vw;
  --unav-z-nav: 90000;
  --unav-z-panel: 89000;
  --unav-z-overlay: 88000;
}

/* Light mode override */
[data-theme="light"] {
  --unav-bg: #f0edf5;
  --unav-bg-elevated: #fff;
  --unav-surface: #ece4f6;
  --unav-surface-hover: #e0d4f0;
  --unav-surface-active: #d4c4ea;
  --unav-border: rgba(107, 74, 163, 0.2);
  --unav-border-strong: rgba(107, 74, 163, 0.45);
  --unav-text: #2d1b4e;
  --unav-text-muted: #6b5a88;
  --unav-text-dim: #9b8ab8;
  --unav-accent: #b8860b;
  --unav-accent-hover: #d4a017;
  --unav-accent-glow: rgba(184, 134, 11, 0.1);
  --unav-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

/* ── Trigger Button (Floating) ── */
.unav-trigger {
  position: fixed;
  z-index: var(--unav-z-nav);
  background: var(--unav-surface);
  border: 2px solid var(--unav-border-strong);
  color: var(--unav-accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--unav-shadow);
  transition: transform var(--unav-transition), background var(--unav-transition), box-shadow var(--unav-transition);
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}
.unav-trigger:hover:not(.unav-trigger--dragging) {
  background: var(--unav-surface-hover);
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.5);
}
.unav-trigger:active:not(.unav-trigger--dragging) {
  transform: scale(0.95);
}
.unav-trigger.unav-trigger--positioned:hover:not(.unav-trigger--dragging) {
  transform: scale(1.08);
}
.unav-trigger.unav-trigger--positioned:active:not(.unav-trigger--dragging) {
  transform: scale(0.95);
}
.unav-trigger.unav-trigger--dragging {
  cursor: grabbing;
  transform: scale(1.05);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  transition: box-shadow 0.15s ease;
}
.unav-trigger.unav-trigger--positioned {
  transform: none;
}
.unav-trigger svg {
  width: 22px;
  height: 22px;
  pointer-events: none;
}

/* Desktop: bottom-left corner */
.unav-trigger {
  bottom: 24px;
  left: 24px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  cursor: grab;
  touch-action: none;
}

/* ── AI Status Badge on FAB ── */
.unav-trigger__ai-badge {
	position: absolute;
	top: -2px;
	right: -2px;
	width: 14px;
	height: 14px;
	border-radius: 50%;
	border: 2px solid var(--unav-surface);
	pointer-events: none;
	display: none;
}
.unav-trigger__ai-badge--working {
	display: block;
	background: var(--unav-accent);
	animation: unav-badge-pulse 1.2s ease-in-out infinite;
}
.unav-trigger__ai-badge--done {
	display: block;
	background: var(--unav-accent);
}
.unav-trigger__ai-badge--error {
	display: block;
	background: #e74c3c;
}
@keyframes unav-badge-pulse {
	0%, 100% { opacity: 1; transform: scale(1); }
	50% { opacity: 0.5; transform: scale(0.85); }
}

/* ── Backdrop ── */
.unav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--unav-z-nav) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}
.unav-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* ── Main Nav Panel ── */
.unav-panel {
  position: fixed;
  z-index: var(--unav-z-nav);
  background: var(--unav-bg);
  border: 1px solid var(--unav-border);
  box-shadow: var(--unav-shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.2s ease;
  overflow: hidden;
}

/* Desktop: popover from bottom-left */
.unav-panel {
  bottom: 84px;
  left: 24px;
  width: 380px;
  max-height: 70vh;
  border-radius: var(--unav-radius);
  transform: translateY(12px) scale(0.97);
  opacity: 0;
  pointer-events: none;
}
.unav-panel.open {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}

/* ── Search Bar ── */
.unav-search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px 6px;
  flex-shrink: 0;
  position: relative;
}
.unav-search-icon {
  position: absolute;
  left: 22px;
  width: 14px;
  height: 14px;
  color: var(--unav-text-dim);
  pointer-events: none;
  flex-shrink: 0;
}
.unav-search {
  flex: 1;
  padding: 8px 12px 8px 34px;
  border-radius: var(--unav-radius-sm);
  border: 1px solid var(--unav-border);
  background: var(--unav-bg-elevated);
  color: var(--unav-text);
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 13px;
  font-weight: 500;
  outline: none;
  transition: border-color var(--unav-transition), box-shadow var(--unav-transition);
  -webkit-appearance: none;
}
.unav-search::placeholder {
  color: var(--unav-text-dim);
}
.unav-search:focus {
  border-color: var(--unav-accent);
  box-shadow: 0 0 0 2px var(--unav-accent-glow);
}
.unav-search-hint {
  font-family: 'Space Grotesk', monospace;
  font-size: 10px;
  font-weight: 700;
  color: var(--unav-text-dim);
  background: var(--unav-surface);
  border: 1px solid var(--unav-border);
  border-radius: 4px;
  padding: 2px 6px;
  line-height: 1.4;
  flex-shrink: 0;
  pointer-events: none;
}

/* ── Search Results ── */
.unav-search-results {
  padding: 4px 8px 8px;
}
.unav-search-empty {
  text-align: center;
  color: var(--unav-text-dim);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  padding: 24px 12px;
}
.unav-search-mark {
  background: rgba(255, 215, 0, 0.25);
  color: var(--unav-accent);
  border-radius: 2px;
  padding: 0 1px;
}
[data-theme="light"] .unav-search-mark {
  background: rgba(184, 134, 11, 0.18);
  color: var(--unav-accent);
}
.unav-search-tab-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--unav-text-dim);
  background: var(--unav-surface);
  border: 1px solid var(--unav-border);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: auto;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Hide notification bell when nav panel is open (prevents overlap) */
.unav-panel.open ~ .notif-bell,
body:has(.unav-panel.open) .notif-bell {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

/* Hide tabs bar when searching */
.unav-panel.unav-searching .unav-tabs {
  display: none;
}
/* Hide pinned section when searching */
.unav-panel.unav-searching .unav-pinned-section {
  display: none !important;
}

/* ── Pinned Section ── */
.unav-pinned-section {
  padding: 4px 8px 0;
  border-bottom: 1px solid var(--unav-border);
  margin-bottom: 2px;
}
.unav-pinned-label {
  display: flex;
  align-items: center;
  gap: 5px;
}
.unav-pinned-label svg {
  width: 12px;
  height: 12px;
  color: var(--unav-accent);
  flex-shrink: 0;
}
.unav-link--pinned {
  background: var(--unav-accent-glow);
}

/* ── Pin Button ── */
.unav-link__pin-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 5px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--unav-text-dim);
  cursor: pointer;
  flex-shrink: 0;
  transition: color var(--unav-transition), background var(--unav-transition), border-color var(--unav-transition);
  -webkit-tap-highlight-color: transparent;
  opacity: 0;
}
.unav-link:hover .unav-link__pin-btn,
.unav-link:focus-visible .unav-link__pin-btn,
.unav-link__pin-btn.pinned {
  opacity: 1;
}
.unav-link__pin-btn svg {
  width: 12px;
  height: 12px;
}
.unav-link__pin-btn:hover {
  color: var(--unav-accent);
  background: var(--unav-surface-active);
  border-color: var(--unav-accent);
}
.unav-link__pin-btn.pinned {
  color: var(--unav-accent);
}
.unav-link__pin-btn.pinned:hover {
  color: var(--unav-text-muted);
}

/* ── Footer Keyboard Hint ── */
.unav-footer-hint {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 10px;
  color: var(--unav-text-dim);
  white-space: nowrap;
  margin-left: auto;
  padding: 0 4px;
}
.unav-footer-hint kbd {
  font-family: 'Space Grotesk', monospace;
  font-size: 10px;
  font-weight: 700;
  color: var(--unav-text-muted);
  background: var(--unav-surface);
  border: 1px solid var(--unav-border);
  border-radius: 3px;
  padding: 1px 4px;
  line-height: 1.3;
}

/* ── Tab Bar (3 sections) ── */
.unav-tabs {
  display: flex;
  background: var(--unav-bg-elevated);
  border-bottom: 1px solid var(--unav-border);
  flex-shrink: 0;
  padding: 8px 10px 0;
  gap: 6px;
}
.unav-tab {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 8px;
  background: transparent;
  border: none;
  color: var(--unav-text-muted);
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--unav-radius-sm) var(--unav-radius-sm) 0 0;
  transition: color var(--unav-transition), background var(--unav-transition);
  white-space: nowrap;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
.unav-tab:hover {
  color: var(--unav-text);
  background: var(--unav-surface);
}
.unav-tab.active {
  color: var(--unav-accent);
  background: var(--unav-bg);
  border: 1px solid var(--unav-border);
  border-bottom-color: var(--unav-bg);
  margin-bottom: -1px;
  gap: 8px;
  padding: 10px 12px;
  flex: 1.5 1 0;
}
.unav-tab span {
  display: none;
}
.unav-tab.active span {
  display: inline;
  font-size: clamp(10px, 2vw, 12px);
}
.unav-tab svg {
  width: clamp(18px, 4vw, 22px);
  height: clamp(18px, 4vw, 22px);
  flex-shrink: 0;
}
.unav-tab.active svg {
  width: clamp(16px, 3.5vw, 20px);
  height: clamp(16px, 3.5vw, 20px);
}

/* ── Tab Content Area ── */
.unav-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--unav-border) transparent;
}
.unav-content::-webkit-scrollbar {
  width: 5px;
}
.unav-content::-webkit-scrollbar-thumb {
  background: var(--unav-border);
  border-radius: 4px;
}

.unav-section {
  display: none;
  padding: 8px;
}
.unav-section.active {
  display: block;
}

/* ── Section Group Label ── */
.unav-group-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--unav-text-dim);
  padding: 12px 10px 4px;
  margin: 0;
}

/* ── Navigation Links ── */
.unav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--unav-radius-sm);
  color: var(--unav-text);
  text-decoration: none;
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  font-weight: 500;
  transition: background var(--unav-transition), color var(--unav-transition);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.unav-link:hover {
  background: var(--unav-surface-hover);
  color: var(--unav-accent);
}
.unav-link:focus-visible {
  background: var(--unav-surface-hover);
  color: var(--unav-accent);
  outline: 2px solid var(--unav-accent);
  outline-offset: -2px;
}
.unav-link.current {
  background: var(--unav-accent-glow);
  color: var(--unav-accent);
  font-weight: 700;
}
.unav-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.7;
}
.unav-link:hover svg,
.unav-link.current svg {
  opacity: 1;
}

/* ── Open-in-Panel Buttons ── */
.unav-link__panel-btns {
  display: flex;
  gap: 3px;
  margin-left: auto;
  flex-shrink: 0;
}
.unav-link.deprecated {
  opacity: 0.45;
  order: 99;
}
.unav-link.deprecated:hover { opacity: 0.7; }
.unav-deprecated-badge {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--unav-text-muted);
  background: var(--unav-border);
  padding: 1px 5px;
  border-radius: 4px;
  margin-left: 6px;
  flex-shrink: 0;
}
.unav-link__external {
  display: inline-flex;
  width: 12px;
  height: 12px;
  margin-left: 4px;
  opacity: 0.4;
  flex-shrink: 0;
}
.unav-link__external svg { width: 100%; height: 100%; }
.unav-link__panel-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 5px;
  border: 1px solid var(--unav-border);
  background: var(--unav-surface);
  color: var(--unav-text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: color var(--unav-transition), background var(--unav-transition), border-color var(--unav-transition);
  -webkit-tap-highlight-color: transparent;
}
.unav-link__panel-btn svg {
  width: 12px;
  height: 12px;
  opacity: 0.65;
}
.unav-link__panel-btn:hover,
.unav-link__panel-btn:active {
  color: var(--unav-accent);
  background: var(--unav-surface-active);
  border-color: var(--unav-accent);
}
.unav-link__panel-btn:hover svg,
.unav-link__panel-btn:active svg {
  opacity: 1;
}

/* ── Footer / Utilities ── */
.unav-footer {
  flex-shrink: 0;
  padding: 8px;
  border-top: 1px solid var(--unav-border);
  display: flex;
  gap: 4px;
}
.unav-footer-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px;
  border-radius: var(--unav-radius-sm);
  border: none;
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  transition: all var(--unav-transition);
  -webkit-tap-highlight-color: transparent;
}
.unav-footer-btn svg {
  width: 14px;
  height: 14px;
}
.unav-footer-btn--theme {
  background: var(--unav-surface);
  color: var(--unav-text-muted);
}
.unav-footer-btn--theme:hover {
  background: var(--unav-surface-hover);
  color: var(--unav-text);
}
.unav-footer-btn--signout {
  background: transparent;
  color: var(--unav-text-dim);
}
.unav-footer-btn--signout:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

/* ============================================
   Side Panel / Overlay (iframe-based)
   Shared styles for both left and right panels
   ============================================ */
.unav-side-panel {
  position: fixed;
  top: 0;
  width: var(--unav-panel-width);
  min-width: var(--unav-panel-min);
  max-width: var(--unav-panel-max);
  height: 100vh;
  height: 100dvh;
  z-index: var(--unav-z-panel);
  background: var(--unav-bg);
  box-shadow: -8px 0 40px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Right Panel ── */
.unav-side-panel--right {
  right: 0;
  border-left: 2px solid var(--unav-border-strong);
  transform: translateX(100%);
}
.unav-side-panel--right.open {
  transform: translateX(0);
}

/* ── Left Panel ── */
.unav-side-panel--left {
  left: 0;
  border-right: 2px solid var(--unav-border-strong);
  box-shadow: 8px 0 40px rgba(0, 0, 0, 0.4);
  transform: translateX(-100%);
}
.unav-side-panel--left.open {
  transform: translateX(0);
}

/* Side panel header */
.unav-side-panel__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--unav-bg-elevated);
  border-bottom: 1px solid var(--unav-border);
  flex-shrink: 0;
  min-height: 44px;
}
.unav-side-panel__title {
  flex: 1;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--unav-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.unav-side-panel__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: none;
  background: var(--unav-surface);
  color: var(--unav-text-muted);
  cursor: pointer;
  transition: all var(--unav-transition);
  flex-shrink: 0;
}
.unav-side-panel__btn:hover {
  background: var(--unav-surface-hover);
  color: var(--unav-text);
}
.unav-side-panel__btn--close:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}
.unav-side-panel__btn svg {
  width: 16px;
  height: 16px;
}

/* Collapse button accent */
.unav-side-panel__btn--collapse {
  margin-right: auto; /* push remaining header items right */
}

/* ── Collapsed state (right panel) ── */
.unav-side-panel--right.collapsed {
  width: 40px !important;
  min-width: 40px !important;
  max-width: 40px !important;
}
/* ── Collapsed state (left panel) ── */
.unav-side-panel--left.collapsed {
  width: 40px !important;
  min-width: 40px !important;
  max-width: 40px !important;
}
.unav-side-panel.collapsed .unav-side-panel__header {
  flex-direction: column;
  padding: 8px 4px;
  gap: 8px;
}
.unav-side-panel.collapsed .unav-side-panel__title,
.unav-side-panel.collapsed [data-sp-action="pop-out"],
.unav-side-panel.collapsed [data-sp-action="close"] {
  display: none;
}
.unav-side-panel.collapsed .unav-side-panel__btn--collapse {
  margin-right: 0;
}
.unav-side-panel.collapsed .unav-side-panel__iframe-wrap {
  display: none;
}
.unav-side-panel.collapsed .unav-side-panel__resize {
  display: none;
}

/* iframe container */
.unav-side-panel__iframe-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
}
.unav-side-panel__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: var(--unav-bg);
}
.unav-side-panel__loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--unav-text-muted);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.unav-side-panel__loading.hidden {
  opacity: 0;
}

/* Resize handle for right side panel */
.unav-side-panel__resize {
  position: absolute;
  top: 0;
  left: -12px;
  width: 24px;
  height: 100%;
  cursor: col-resize;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none; /* prevent scroll interference on touch */
}
/* Resize handle for left panel (on the right edge) */
.unav-side-panel__resize--right {
  left: auto;
  right: -12px;
}
/* Visible grip indicator */
.unav-side-panel__resize::before {
  content: '';
  width: 4px;
  height: 48px;
  border-radius: 4px;
  background: var(--unav-border);
  transition: background 0.2s ease, height 0.2s ease, box-shadow 0.2s ease;
}
.unav-side-panel__resize:hover::before,
.unav-side-panel__resize.active::before {
  background: var(--unav-accent);
  height: 64px;
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}
.unav-side-panel__resize:hover,
.unav-side-panel__resize.active {
  background: rgba(255, 215, 0, 0.06);
}

/* When both panels are open, limit max width so they don't overlap */
body.unav-panel-open .unav-side-panel {
  --unav-panel-max: 45vw;
}

/* ── Content Push: slide page content when side panel opens ── */
body {
  transition: margin-right 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              margin-left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
body.unav-sp-right-open {
  margin-right: var(--unav-push-width, 0px);
}
body.unav-sp-left-open {
  margin-left: var(--unav-push-width-left, 0px);
}
@media (max-width: 640px) {
  body.unav-sp-right-open { margin-right: 0 !important; }
  body.unav-sp-left-open { margin-left: 0 !important; }
}

/* Side panel overlay backdrop */
.unav-side-panel-backdrop {
  position: fixed;
  inset: 0;
  z-index: calc(var(--unav-z-panel) - 1);
  background: transparent;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.unav-side-panel-backdrop.open {
  opacity: 0;
  pointer-events: none;
}

/* ============================================
   Responsive: Tablet (≤1024px)
   ============================================ */
@media (max-width: 1024px) {
  .unav-panel {
    width: 340px;
  }
  .unav-side-panel {
    --unav-panel-width: 65vw;
    --unav-panel-min: 360px;
  }
}

/* ============================================
   Responsive: Mobile (≤640px)
   ============================================ */
@media (max-width: 640px) {
  /* Trigger becomes bottom-center pill */
  .unav-trigger:not(.unav-trigger--positioned) {
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 56px;
    border-radius: 50%;
  }
  .unav-trigger:not(.unav-trigger--positioned):hover:not(.unav-trigger--dragging) {
    transform: translateX(-50%) scale(1.05);
  }
  .unav-trigger:not(.unav-trigger--positioned):active:not(.unav-trigger--dragging) {
    transform: translateX(-50%) scale(0.95);
  }
  .unav-trigger.unav-trigger--positioned {
    width: 56px;
    height: 56px;
  }

  /* Nav panel becomes bottom sheet */
  .unav-panel {
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-height: 75vh;
    border-radius: var(--unav-radius) var(--unav-radius) 0 0;
    transform: translateY(100%);
    opacity: 1;
  }
  .unav-panel.open {
    transform: translateY(0);
  }

  /* Bottom sheet drag handle */
  .unav-panel::before {
    content: '';
    display: block;
    width: 40px;
    height: 4px;
    border-radius: 2px;
    background: var(--unav-border);
    margin: 8px auto 4px;
    flex-shrink: 0;
  }

  .unav-tab {
    font-size: 11px;
    padding: 12px 6px;
  }
  .unav-tab svg {
    width: 22px;
    height: 22px;
  }
  .unav-tab.active svg {
    width: 18px;
    height: 18px;
  }
  .unav-tab.active {
    flex: 1.8 1 0;
  }

  /* Hide keyboard hints on mobile */
  .unav-footer-hint {
    display: none;
  }
  .unav-search-hint {
    display: none;
  }

  /* Side panels become full overlay on mobile */
  .unav-side-panel {
    width: 100% !important;
    min-width: unset !important;
    max-width: unset !important;
  }
  .unav-side-panel__resize {
    display: none;
  }
  /* Hide left panel button on mobile (one panel at a time) */
  .unav-link__panel-btn--left {
    display: none;
  }

}

/* ============================================
   Animations
   ============================================ */
@keyframes unav-spin {
  to { transform: rotate(360deg); }
}
.unav-side-panel__loading svg {
  animation: unav-spin 1s linear infinite;
}

/* Print: hide nav entirely */
@media print {
  .unav-trigger,
  .unav-panel,
  .unav-backdrop,
  .unav-side-panel,
  .unav-side-panel-backdrop {
    display: none !important;
  }
}

/* ============================================
   Global Mobile Improvements
   Applied to all pages that include unified-nav
   ============================================ */

/* Prevent pull-to-refresh / overscroll bounce */
html, body {
  overscroll-behavior: none;
}

/* Responsive tables: horizontal scroll on small screens */
@media (max-width: 768px) {
  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100vw;
  }
  td, th {
    white-space: nowrap;
  }
}
@media (pointer: coarse) {
  td, th {
    min-height: 36px;
    padding: 8px 10px;
  }
}

/* Toolbar/header nav overflow: scroll instead of clip */
@media (max-width: 1024px) {
  .header-actions,
  .filter-bar,
  .action-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    scrollbar-width: none;
  }
  .header-actions::-webkit-scrollbar,
  .filter-bar::-webkit-scrollbar,
  .action-bar::-webkit-scrollbar {
    display: none;
  }
  .header-actions > *,
  .filter-bar > *,
  .action-bar > * {
    flex-shrink: 0;
  }
}

/* ── Rooms Tab ─────────────────────────── */
.unav-room-link {
  gap: 8px;
}
.unav-room-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}
.unav-room-name {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.unav-room-mode-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--unav-text-dim);
  background: var(--unav-surface);
  border: 1px solid var(--unav-border);
  padding: 1px 6px;
  border-radius: 4px;
  width: fit-content;
}
.unav-room-code {
  font-family: monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--unav-accent);
  background: rgba(255, 215, 0, 0.08);
  border: 1px solid var(--unav-border);
  border-radius: 4px;
  padding: 2px 6px;
  flex-shrink: 0;
}
.unav-room-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.unav-room-status--active {
  background: #4caf50;
  animation: unav-room-pulse 2s infinite;
}
.unav-room-status--waiting {
  background: #ffa726;
}
@keyframes unav-room-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ═══════════════════════════════════════════
   AI Chat Tab
   ═══════════════════════════════════════════ */
.unav-ai-chat {
  display: none;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}
.unav-ai-chat.active {
  display: flex;
}

/* Toolbar */
.unav-ai-toolbar {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--unav-border);
  flex-shrink: 0;
}
.unav-ai-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--unav-border);
  border-radius: var(--unav-radius-sm);
  background: transparent;
  color: var(--unav-text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.unav-ai-btn:hover {
  color: var(--unav-text);
  background: var(--unav-surface);
}
.unav-ai-btn.active {
  color: var(--unav-accent);
  border-color: var(--unav-accent);
  background: rgba(107, 74, 163, 0.15);
}
.unav-ai-btn svg {
  width: 16px;
  height: 16px;
}

/* Model picker */
.unav-ai-model-select {
  padding: 4px 8px;
  border: 1px solid var(--unav-border);
  border-radius: var(--unav-radius-sm);
  background: var(--unav-bg);
  color: var(--unav-text);
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  outline: none;
  max-width: 160px;
}
.unav-ai-model-select:focus {
  border-color: var(--unav-accent);
}

/* Messages */
.unav-ai-messages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}
.unav-ai-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 100%;
  opacity: 0.5;
  font-size: 13px;
  text-align: center;
  padding: 24px;
}
.unav-ai-empty-icon svg {
  width: 40px;
  height: 40px;
  opacity: 0.4;
}
.unav-ai-msg {
  max-width: 90%;
  animation: unav-ai-fade 0.2s ease;
}
.unav-ai-msg--user {
  align-self: flex-end;
}
.unav-ai-msg--assistant {
  align-self: flex-start;
}
.unav-ai-msg {
  position: relative;
}
.unav-ai-msg-actions {
  position: absolute;
  top: 4px;
  right: 4px;
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 1;
}
.unav-ai-msg:hover .unav-ai-msg-actions {
  opacity: 1;
}
.unav-ai-msg-copy,
.unav-ai-msg-open-html {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: var(--unav-bg-elevated);
  color: var(--unav-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.unav-ai-msg-copy:hover,
.unav-ai-msg-open-html:hover {
  color: var(--unav-accent);
}
.unav-ai-msg-copy svg,
.unav-ai-msg-open-html svg {
  width: 13px;
  height: 13px;
}
.unav-ai-msg-copy--done {
  color: #56d48f !important;
}
.unav-ai-msg-actions:has(.unav-ai-msg-copy--done) {
  opacity: 1;
}
.unav-ai-msg-content {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.5;
  word-wrap: break-word;
}
.unav-ai-msg--user .unav-ai-msg-content {
  background: var(--unav-accent);
  color: #1a1a2e;
  border-bottom-right-radius: 4px;
}
.unav-ai-msg--assistant .unav-ai-msg-content {
  background: var(--unav-surface);
  color: var(--unav-text);
  border-bottom-left-radius: 4px;
}
.unav-ai-msg-content code {
  background: rgba(0,0,0,0.15);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 12px;
}
@keyframes unav-ai-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Typing dots */
.unav-ai-dots {
  display: inline-flex;
  gap: 4px;
  padding: 4px 0;
}
.unav-ai-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--unav-text-muted);
  animation: unav-ai-bounce 1.2s infinite;
}
.unav-ai-dots span:nth-child(2) { animation-delay: 0.15s; }
.unav-ai-dots span:nth-child(3) { animation-delay: 0.3s; }
@keyframes unav-ai-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}
.unav-ai-status {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  color: var(--unav-accent);
  font-weight: 500;
  font-family: 'Space Grotesk', -apple-system, sans-serif;
  opacity: 0.9;
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: middle;
}

/* Input area */
.unav-ai-input-wrap {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid var(--unav-border);
  flex-shrink: 0;
  align-items: flex-end;
}
.unav-ai-input {
  flex: 1;
  resize: none;
  border: 1px solid var(--unav-border);
  border-radius: var(--unav-radius-sm);
  background: var(--unav-surface);
  color: var(--unav-text);
  padding: 8px 10px;
  font-size: 13px;
  font-family: inherit;
  line-height: 1.4;
  max-height: 120px;
  outline: none;
  transition: border-color 0.15s;
}
.unav-ai-input:focus {
  border-color: var(--unav-accent);
}
.unav-ai-input::placeholder {
  color: var(--unav-text-muted);
}
/* Attach button */
.unav-ai-attach-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--unav-border);
  border-radius: var(--unav-radius-sm);
  background: transparent;
  color: var(--unav-text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.15s;
}
.unav-ai-attach-btn:hover {
  color: var(--unav-accent);
  border-color: var(--unav-accent);
}
.unav-ai-attach-btn svg {
  width: 16px;
  height: 16px;
}

/* Attachments bar */
.unav-ai-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px 12px;
  flex-shrink: 0;
}
.unav-ai-attachment-chip {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  background: rgba(107, 74, 163, 0.15);
  border: 1px solid var(--unav-border);
  border-radius: 12px;
  font-size: 11px;
  color: var(--unav-text);
  max-width: 160px;
}
.unav-ai-attachment-icon {
  font-size: 12px;
  flex-shrink: 0;
}
.unav-ai-attachment-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.unav-ai-attachment-remove {
  width: 16px;
  height: 16px;
  border: none;
  background: transparent;
  color: var(--unav-text-muted);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.unav-ai-attachment-remove:hover {
  color: #e57373;
}

/* Drag-over state for input area */
.unav-ai-input-wrap--dragover {
  background: rgba(107, 74, 163, 0.1);
  border-color: var(--unav-accent) !important;
}

/* Attachment badges on sent messages */
.unav-ai-msg-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  margin-bottom: 4px;
}
.unav-ai-msg-attach-badge {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 8px;
  background: rgba(255, 215, 0, 0.2);
  color: var(--unav-accent);
  max-width: 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Action result badges */
.unav-ai-action-results {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}
.unav-ai-action-badge {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 8px;
  font-weight: 700;
}
.unav-ai-action--ok {
  background: rgba(86, 212, 143, 0.15);
  color: #56d48f;
}
.unav-ai-action--err {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.unav-ai-send {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: var(--unav-radius-sm);
  background: var(--unav-accent);
  color: #1a1a2e;
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity 0.15s;
}
.unav-ai-send:hover {
  opacity: 0.85;
}
.unav-ai-send svg {
  width: 16px;
  height: 16px;
}

/* History panel */
.unav-ai-history {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
  overscroll-behavior: contain;
}
.unav-ai-hist-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--unav-text);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
  border-left: 3px solid transparent;
}
.unav-ai-hist-item:hover {
  background: var(--unav-surface);
}
.unav-ai-hist-item.unav-ai-hist--active {
  border-left-color: var(--unav-accent);
  background: var(--unav-surface);
}
.unav-ai-hist-title {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.unav-ai-hist-meta {
  font-size: 11px;
  color: var(--unav-text-muted);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Memories panel */
.unav-ai-memories-panel {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
  overscroll-behavior: contain;
}
.unav-ai-memory {
  padding: 10px 16px;
  border-bottom: 1px solid var(--unav-border);
}
.unav-ai-memory-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}
.unav-ai-memory-category {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--unav-accent);
  font-weight: 700;
  flex-shrink: 0;
}
.unav-ai-memory-subject {
  font-size: 12px;
  font-weight: 600;
  color: var(--unav-text);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.unav-ai-memory-delete {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  background: transparent;
  color: var(--unav-text-muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s;
  flex-shrink: 0;
}
.unav-ai-memory:hover .unav-ai-memory-delete {
  opacity: 1;
}
.unav-ai-memory-delete:hover {
  color: #e57373;
}
.unav-ai-memory-delete svg {
  width: 12px;
  height: 12px;
}
.unav-ai-memory-content {
  font-size: 12px;
  line-height: 1.5;
  color: var(--unav-text-muted);
}

/* Make panel taller when AI tab is active, let AI section own scroll */
.unav-panel:has(.unav-ai-chat.active) {
  max-height: 85vh;
}
.unav-content:has(.unav-ai-chat.active) {
  overflow-y: hidden;
  display: flex;
  flex-direction: column;
}

/* ── Expanded AI Panel (dynamic island) ── */
.unav-panel--expanded {
  width: min(90vw, 900px) !important;
  max-height: 90vh !important;
  bottom: 24px !important;
  left: 24px !important;
  border-radius: 16px !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* Two-column body: chat + preview pane */
.unav-ai-body-wrap {
  display: flex;
  flex: 1;
  min-height: 0;
}
.unav-panel:not(.unav-panel--expanded) .unav-ai-preview-pane {
  display: none !important;
}
.unav-ai-preview-pane {
  display: none;
  flex-direction: column;
  width: 50%;
  border-left: 1px solid var(--unav-border);
  flex-shrink: 0;
  background: #fff;
}
.unav-panel--expanded .unav-ai-messages {
  width: 100%;
  min-width: 0;
}
.unav-panel--expanded .unav-ai-preview-pane {
  display: flex;
}
.unav-panel--expanded .unav-ai-preview-pane:empty,
.unav-panel--expanded .unav-ai-preview-pane[style*="display: none"] {
  display: none !important;
  width: 0;
}
/* When preview is hidden in expanded mode, chat takes full width */
.unav-panel--expanded .unav-ai-body-wrap:not(:has(.unav-ai-preview-pane[style]:not([style*="display: none"]))) .unav-ai-messages {
  width: 100%;
}

/* Preview pane internals */
.unav-ai-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--unav-bg-elevated);
  border-bottom: 1px solid var(--unav-border);
  font-size: 11px;
  font-weight: 700;
  color: var(--unav-text-muted);
  text-transform: uppercase;
  flex-shrink: 0;
}
.unav-ai-preview-close {
  width: 22px;
  height: 22px;
  border: none;
  background: transparent;
  color: var(--unav-text-muted);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.unav-ai-preview-close:hover {
  color: var(--unav-text);
}
.unav-ai-preview-iframe {
  flex: 1;
  border: none;
  width: 100%;
  background: #fff;
}

/* Artifact cards in chat */
.unav-ai-artifact-card {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  padding: 10px 12px;
  background: var(--unav-bg-elevated);
  border: 1px solid var(--unav-border);
  border-radius: var(--unav-radius-sm);
  cursor: default;
}
.unav-ai-artifact-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(107, 74, 163, 0.15);
  border-radius: 6px;
  color: var(--unav-accent);
}
.unav-ai-artifact-icon svg {
  width: 16px;
  height: 16px;
}
.unav-ai-artifact-info {
  flex: 1;
  min-width: 0;
}
.unav-ai-artifact-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--unav-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.unav-ai-artifact-type {
  font-size: 10px;
  color: var(--unav-text-muted);
  text-transform: capitalize;
}
.unav-ai-artifact-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}
.unav-ai-artifact-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--unav-border);
  border-radius: 4px;
  background: transparent;
  color: var(--unav-text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.unav-ai-artifact-btn:hover {
  color: var(--unav-accent);
  border-color: var(--unav-accent);
}
.unav-ai-artifact-btn svg {
  width: 12px;
  height: 12px;
}
.unav-ai-artifact-btn--push {
  background: rgba(107, 74, 163, 0.15);
  border-color: var(--unav-accent);
  color: var(--unav-accent);
}

/* Push to Lesson popover */
/* Slash / @ Autocomplete popup */
.unav-ai-ac-popup {
  position: absolute;
  bottom: 60px;
  left: 12px;
  right: 12px;
  max-height: 280px;
  overflow-y: auto;
  background: var(--unav-bg-elevated);
  border: 1px solid var(--unav-border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  z-index: 10;
  animation: unav-ai-fade 0.1s ease;
}
.unav-ai-ac-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background 0.1s;
}
.unav-ai-ac-item:hover,
.unav-ai-ac-item--sel {
  background: rgba(107, 74, 163, 0.15);
}
.unav-ai-ac-icon {
  font-size: 16px;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}
.unav-ai-ac-info {
  flex: 1;
  min-width: 0;
}
.unav-ai-ac-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--unav-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.unav-ai-ac-sub {
  font-size: 10px;
  color: var(--unav-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.unav-ai-push-popover {
  position: absolute;
  bottom: 60px;
  left: 12px;
  right: 12px;
  background: var(--unav-bg-elevated);
  border: 1px solid var(--unav-border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  z-index: 10;
  animation: unav-ai-fade 0.15s ease;
}
.unav-ai-push-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--unav-border);
  font-size: 13px;
}
.unav-ai-push-close {
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--unav-text-muted);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.unav-ai-push-body {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.unav-ai-push-body label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--unav-text-muted);
  font-weight: 700;
  margin-top: 4px;
}
.unav-ai-push-artifact {
  font-size: 12px;
  font-weight: 600;
  color: var(--unav-accent);
  padding: 6px 8px;
  background: rgba(107, 74, 163, 0.1);
  border-radius: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.unav-ai-push-select,
.unav-ai-push-date,
.unav-ai-push-title {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--unav-border);
  border-radius: 4px;
  background: var(--unav-bg);
  color: var(--unav-text);
  font-family: inherit;
  font-size: 12px;
}
.unav-ai-push-footer {
  padding: 10px 14px;
  border-top: 1px solid var(--unav-border);
}
.unav-ai-push-btn {
  width: 100%;
  padding: 8px;
  border: none;
  border-radius: 6px;
  background: var(--unav-accent);
  color: #1a1a2e;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}
.unav-ai-push-btn:hover { opacity: 0.9; }
.unav-ai-push-btn:disabled { opacity: 0.6; cursor: default; }

/* ─── Stream Tab ─────────────────────────── */
.unav-stream {
  display: none;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}
.unav-stream.active { display: flex; }

.unav-stream-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--unav-border);
  flex-shrink: 0;
}
.unav-stream-search-wrap {
  flex: 1;
  position: relative;
}
.unav-stream-search-wrap svg {
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  color: var(--unav-text-muted);
  pointer-events: none;
}
.unav-stream-search {
  width: 100%;
  padding: 6px 8px 6px 28px;
  border: 1px solid var(--unav-border);
  border-radius: 6px;
  background: var(--unav-bg);
  color: var(--unav-text);
  font-family: inherit;
  font-size: 12px;
  outline: none;
}
.unav-stream-search:focus { border-color: var(--unav-accent); }

.unav-stream-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 8px;
  transition: all 0.15s;
}
.unav-stream-btn svg { width: 14px; height: 14px; }
.unav-stream-btn--new {
  background: var(--unav-accent);
  color: #1a1a2e;
  gap: 4px;
  font-weight: 700;
  padding: 4px 12px;
}
.unav-stream-btn--new:hover { opacity: 0.85; }
.unav-stream-btn--publish {
  background: var(--unav-accent);
  color: #1a1a2e;
}
.unav-stream-btn--publish:hover { opacity: 0.85; }
.unav-stream-btn--cancel {
  background: transparent;
  color: var(--unav-text-muted);
  border: 1px solid var(--unav-border);
}
.unav-stream-btn--cancel:hover { color: var(--unav-text); }
.unav-stream-btn--close {
  background: transparent;
  color: var(--unav-text-muted);
  padding: 4px;
}
.unav-stream-btn--close:hover { color: var(--unav-text); }
.unav-stream-btn--sm { padding: 4px 8px; font-size: 11px; }

/* Class pills — multi-select */
.unav-stream-class-pills {
  display: flex;
  gap: 4px;
  padding: 6px 14px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
@keyframes unav-pill-in {
  from { opacity: 0; transform: scale(0.85); }
  to { opacity: 1; transform: scale(1); }
}
.unav-stream-pill {
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  border: 1.5px solid var(--unav-border);
  background: transparent;
  color: var(--unav-text-muted);
  cursor: pointer;
  transition: all 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  animation: unav-pill-in 0.2s ease-out both;
}
.unav-stream-pill:nth-child(1) { animation-delay: 0s; }
.unav-stream-pill:nth-child(2) { animation-delay: 0.03s; }
.unav-stream-pill:nth-child(3) { animation-delay: 0.06s; }
.unav-stream-pill:nth-child(4) { animation-delay: 0.09s; }
.unav-stream-pill:nth-child(5) { animation-delay: 0.12s; }
.unav-stream-pill:nth-child(n+6) { animation-delay: 0.15s; }
.unav-stream-pill:hover { background: rgba(107, 74, 163, 0.08); }
.unav-stream-pill.active {
  background: rgba(107, 74, 163, 0.15);
  border-color: var(--unav-accent);
  color: var(--unav-accent);
}

/* Feed */
.unav-stream-feed {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.unav-stream-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  color: var(--unav-text-muted);
  font-size: 12px;
}
.unav-stream-loading svg { width: 16px; height: 16px; animation: unav-spin 1s linear infinite; }
.unav-stream-empty {
  text-align: center;
  padding: 24px 16px;
  color: var(--unav-text-muted);
  font-size: 12px;
}

/* Post card */
@keyframes unav-card-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.unav-stream-post {
  background: var(--unav-bg);
  border: 1px solid var(--unav-border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.15s;
  animation: unav-card-in 0.25s ease-out both;
}
.unav-stream-post:nth-child(1) { animation-delay: 0s; }
.unav-stream-post:nth-child(2) { animation-delay: 0.04s; }
.unav-stream-post:nth-child(3) { animation-delay: 0.08s; }
.unav-stream-post:nth-child(4) { animation-delay: 0.12s; }
.unav-stream-post:nth-child(5) { animation-delay: 0.16s; }
.unav-stream-post:nth-child(n+6) { animation-delay: 0.2s; }
.unav-stream-post:hover { border-color: var(--unav-accent); }
.unav-stream-post--pinned { border-color: #f59e0b; }
.unav-stream-post__accent { height: 3px; width: 100%; }
.unav-stream-post__header {
  padding: 8px 12px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.unav-stream-post__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--unav-text);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.unav-stream-badge {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.unav-stream-badge--pinned { color: #f59e0b; }
.unav-stream-badge--pinned svg { width: 10px; height: 10px; }
.unav-stream-post__meta {
  padding: 2px 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--unav-text-muted);
}
.unav-stream-post__preview {
  padding: 4px 12px 8px;
  font-size: 12px;
  color: var(--unav-text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.unav-stream-post__footer {
  padding: 4px 12px 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* Reactions */
.unav-stream-reactions {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  flex: 1;
}
.unav-stream-reaction {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 6px;
  border-radius: 10px;
  font-size: 11px;
  background: rgba(107, 74, 163, 0.08);
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
}
.unav-stream-reaction:hover { background: rgba(107, 74, 163, 0.18); }
.unav-stream-reaction--active {
  border-color: var(--unav-accent);
  background: rgba(107, 74, 163, 0.2);
}

/* Comments inline */
.unav-stream-comments {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  color: var(--unav-text-muted);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
}
.unav-stream-comments:hover { color: var(--unav-accent); }
.unav-stream-comments svg { width: 12px; height: 12px; }

/* Post actions */
.unav-stream-post-actions {
  display: flex;
  gap: 2px;
  margin-left: auto;
}
.unav-stream-action-btn {
  background: none;
  border: none;
  color: var(--unav-text-muted);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
}
.unav-stream-action-btn svg { width: 12px; height: 12px; }
.unav-stream-action-btn:hover { color: var(--unav-accent); background: rgba(107, 74, 163, 0.08); }
.unav-stream-action-btn--danger:hover { color: #ef4444; background: rgba(239, 68, 68, 0.08); }

/* Comments section */
.unav-stream-post__comments-section {
  display: none;
  border-top: 1px solid var(--unav-border);
  padding: 8px 12px;
  flex-direction: column;
  gap: 6px;
}
.unav-stream-post__comments-section.open { display: flex; }

.unav-stream-comment {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: baseline;
  font-size: 11px;
}
.unav-stream-comment--reply { padding-left: 12px; }
.unav-stream-comment__name {
  font-weight: 700;
  color: var(--unav-text);
  font-size: 11px;
}
.unav-stream-comment__name--teacher { color: var(--unav-accent); }
.unav-stream-comment__text { color: var(--unav-text); font-size: 11px; }
.unav-stream-comment__time { color: var(--unav-text-muted); font-size: 10px; }

.unav-stream-comment-input-wrap {
  display: flex;
  gap: 4px;
  margin-top: 4px;
}
.unav-stream-comment-input {
  flex: 1;
  padding: 4px 8px;
  border: 1px solid var(--unav-border);
  border-radius: 4px;
  background: var(--unav-bg);
  color: var(--unav-text);
  font-family: inherit;
  font-size: 11px;
  outline: none;
}
.unav-stream-comment-input:focus { border-color: var(--unav-accent); }

/* Editor */
@keyframes unav-editor-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.unav-stream-editor {
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 12px 14px;
  overflow-y: auto;
  flex: 1;
  animation: unav-editor-in 0.25s ease-out;
}
.unav-stream-editor__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.unav-stream-editor__title {
  font-weight: 700;
  font-size: 14px;
  color: var(--unav-text);
}
.unav-stream-editor__input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--unav-border);
  border-radius: 6px;
  background: var(--unav-bg);
  color: var(--unav-text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  outline: none;
}
.unav-stream-editor__input:focus { border-color: var(--unav-accent); }
.unav-stream-editor__body {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--unav-border);
  border-radius: 6px;
  background: var(--unav-bg);
  color: var(--unav-text);
  font-family: inherit;
  font-size: 12px;
  line-height: 1.6;
  outline: none;
  resize: vertical;
  min-height: 80px;
}
.unav-stream-editor__body:focus { border-color: var(--unav-accent); }
.unav-stream-editor__row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.unav-stream-editor__label {
  font-size: 11px;
  color: var(--unav-text-muted);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.unav-stream-editor__class-select,
.unav-stream-editor__access-select,
.unav-stream-editor__icon-select {
  flex: 1;
  padding: 4px 8px;
  border: 1px solid var(--unav-border);
  border-radius: 4px;
  background: var(--unav-bg);
  color: var(--unav-text);
  font-family: inherit;
  font-size: 11px;
}
.unav-stream-editor__actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 4px;
}