/* ─── Layout: Header, Main Content, Bottom Nav, FAB — Mission Control ─── */

/* ─── Header ─── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: calc(44px + var(--content-safe-top));
  padding-top: var(--content-safe-top);
  padding-left: calc(16px + var(--safe-left));
  padding-right: calc(16px + var(--safe-right));
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  z-index: 10;
  position: relative;
  min-width: 0;
}

.app-header::after {
  display: none;
}

.app-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
  overflow: hidden;
}

.app-header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.app-header-titles {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.app-header-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  flex-shrink: 0;
  color: var(--accent);
}

.app-header-logo svg {
  width: 16px;
  height: 16px;
  color: currentColor;
}

.app-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.app-header-title {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-bright);
  white-space: nowrap;
}

.app-header-subtitle {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.app-header-hint {
  font-size: 10px;
  color: var(--text-hint);
}

.app-header-user {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.app-header-workspace {
  display: flex;
  align-items: center;
}

.header-status {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.header-freshness {
  font-size: 11px;
  opacity: 0.6;
  white-space: nowrap;
}

/* ─── Connection Pill ─── */
.connection-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.connection-pill.connected {
  border-color: rgba(16, 185, 129, 0.28);
  color: var(--color-done);
}

.connection-pill.disconnected {
  border-color: rgba(239, 68, 68, 0.35);
  color: var(--color-error);
}

.connection-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 2s infinite;
  position: relative;
}

.connection-pill.connected .connection-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  opacity: 0;
  animation: pulseRing 2s ease-out infinite;
}

@keyframes pulseRing {
  0% { transform: scale(0.8); opacity: 0.6; }
  100% { transform: scale(2); opacity: 0; }
}

/* ─── Main Content ─── */
.main-content {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-gutter: stable;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 14px calc(14px + var(--safe-right)) calc(var(--nav-height, 56px) + var(--safe-bottom, 0px) + 16px) calc(14px + var(--safe-left));
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  touch-action: pan-y;
  position: relative;
  z-index: 1;
}

/* Compact mode — activated when bottom-nav is visible (mobile).
   Reduces side/top padding so content gets more vertical space.
   Bottom padding is kept via the base rule to clear the fixed nav. */
.main-content.compact {
  padding-top: 10px;
  padding-left: calc(10px + var(--safe-left));
  padding-right: calc(10px + var(--safe-right));
}

.modal-open .main-content {
  z-index: 100;
}

.modal-open .app-header {
  z-index: 0;
}

/* ─── Tab Panel ─── */
.tab-panel {
  display: none;
  animation: fadeIn 0.25s ease;
}

.tab-panel.active {
  display: block;
}

/* Staggered card entrance */
.main-content > * {
  animation: cardReveal 0.25s cubic-bezier(0.4, 0, 0.2, 1) both;
}
.main-content > *:nth-child(1) { animation-delay: 0s; }
.main-content > *:nth-child(2) { animation-delay: 0.05s; }
.main-content > *:nth-child(3) { animation-delay: 0.1s; }
.main-content > *:nth-child(4) { animation-delay: 0.15s; }
.main-content > *:nth-child(5) { animation-delay: 0.2s; }
.main-content > *:nth-child(6) { animation-delay: 0.25s; }
.main-content > *:nth-child(7) { animation-delay: 0.3s; }
.main-content > *:nth-child(8) { animation-delay: 0.35s; }

@keyframes cardReveal {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Bottom Navigation — Clean pill bar ─── */
.bottom-nav {
  position: fixed;
  bottom: calc(8px + var(--safe-bottom));
  left: calc(12px + var(--safe-left));
  right: calc(12px + var(--safe-right));
  height: var(--nav-height);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 500;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  animation: navSlideUp 0.3s cubic-bezier(0.25, 1, 0.5, 1) 0.15s both;
  padding-bottom: 0;
  pointer-events: auto;
}

.bottom-nav.compact {
  height: calc(var(--nav-height) - 4px);
  padding: 2px 6px;
  justify-content: space-between;
  gap: 2px;
}

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

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 8px 0;
  min-width: 48px;
  min-height: 44px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition-fast), transform var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  position: relative;
  border-radius: var(--radius-md);
  pointer-events: auto;
  touch-action: manipulation;
}

.bottom-nav.compact .nav-item {
  min-width: 56px;
  padding: 6px 0;
}

.nav-item-more {
  color: var(--text-secondary);
}

.nav-item:active {
  transform: scale(0.96);
}

.nav-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-item.active {
  color: var(--accent);
}

.nav-item.active::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: var(--radius-md);
  background: var(--accent-subtle);
  z-index: -1;
  animation: scaleIn 0.2s ease;
}

.nav-item.active svg {
  transform: scale(1.03);
  filter: none;
}

.nav-item svg {
  width: 22px;
  height: 22px;
  transition: transform 0.2s ease, filter 0.2s ease;
  pointer-events: none;
}

.nav-label {
  line-height: 1;
  pointer-events: none;
}

/* ─── More Menu (Modal Sheet) ─── */
.more-menu {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 4px 4px 12px;
}

.more-menu-section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-hint);
  margin-bottom: 8px;
}

.more-menu-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.more-menu-item {
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  border-radius: 14px;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-height: 68px;
  font-size: 11px;
  font-weight: 600;
  transition: transform var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.more-menu-item.active {
  color: var(--accent);
  border-color: rgba(59, 130, 246, 0.25);
  background: var(--bg-card-hover);
}

.more-menu-item:active {
  transform: scale(0.97);
}

.more-menu-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.more-menu-icon svg {
  width: 20px;
  height: 20px;
}

.more-menu-label {
  line-height: 1.1;
  text-align: center;
}

/* ─── FAB ─── */
.fab {
  position: fixed;
  right: calc(16px + var(--safe-right));
  bottom: calc(var(--nav-height) + var(--safe-bottom) + 28px);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--accent);
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  z-index: 50;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.fab:active {
  transform: scale(0.9);
}

.fab:hover {
  box-shadow: var(--shadow-lg);
}

.fab svg {
  width: 18px;
  height: 18px;
}

.scroll-top {
  position: fixed;
  left: calc(16px + var(--safe-left));
  bottom: calc(var(--nav-height) + var(--safe-bottom) + 20px);
  padding: 8px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-bright);
  font-size: 12px;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  z-index: 60;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.scroll-top:active {
  transform: scale(0.95);
}

.scroll-top:hover {
  box-shadow: var(--shadow-md);
}

/* ─── Responsive ─── */
@media (max-width: 380px) {
  .nav-label {
    font-size: 9px;
  }

  .more-menu-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .bottom-nav.compact {
    left: calc(12px + var(--safe-left));
    right: calc(12px + var(--safe-right));
    height: calc(var(--nav-height) - 12px);
    gap: 2px;
    padding: 4px 6px;
  }

  .bottom-nav.compact .nav-item {
    min-width: 52px;
    padding: 4px 0;
    gap: 2px;
  }

  .bottom-nav.compact .nav-item svg {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 360px) {
  .app-header-hint {
    display: none;
  }
}

@media (max-width: 640px) {
  .app-header {
    height: var(--header-height);
    flex-direction: row;
    align-items: center;
    gap: 10px;
    padding-top: var(--content-safe-top);
    padding-bottom: 0;
  }

  .app-header-toolbar {
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
  }

  .app-header .MuiToolbar-root > * {
    min-width: 0;
  }

  .app-header-logo {
    width: 34px;
    height: 34px;
  }

  .app-header-subtitle {
    display: none;
  }

  .app-header-hint {
    display: none;
  }

  .header-status {
    display: none;
  }

  .app-header-workspace {
    min-width: 0;
  }

  .app-header-status-stack {
    min-width: 0;
    gap: 6px !important;
    flex-shrink: 1;
  }

  .app-header-status-stack .MuiChip-root,
  .app-header-status-stack .connection-badge {
    min-width: 0;
    flex-shrink: 1;
  }

  .app-header-status-stack .connection-badge-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .app-header-freshness {
    display: none;
  }

  .app-header-right {
    gap: 8px;
  }
}

@media (min-width: 641px) and (max-width: 1100px) {
  .app-header-right {
    flex-shrink: 1;
    min-width: 0;
    max-width: 50%;
  }

  .header-actions {
    min-width: 0;
    max-width: 100%;
    gap: 6px;
  }

  .header-status {
    min-width: 0;
  }

  .connection-pill,
  .header-freshness,
  .app-header-user {
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .app-header-user {
    max-width: 120px;
  }
}

@media (max-width: 520px) {
  .app-header {
    padding-left: calc(14px + var(--safe-left));
    padding-right: calc(14px + var(--safe-right));
  }

  .header-actions {
    gap: 6px;
  }

  .app-header-user,
  .header-freshness,
  .app-header-latency-chip,
  .app-header-user-chip {
    display: none;
  }

  .connection-pill {
    padding: 4px 8px;
    font-size: 10px;
  }

  .fab {
    display: none;
  }
}

@media (min-width: 768px) {
  .main-content {
    padding-top: 20px;
    padding-right: calc(20px + var(--safe-right));
    padding-bottom: 0;
    padding-left: calc(20px + var(--safe-left));
  }

  .app-header {
    height: var(--header-height);
  }

  .app-header-logo {
    width: 44px;
    height: 44px;
  }

  .bottom-nav {
    left: 50%;
    right: auto;
    width: 480px;
    transform: translateX(-50%);
    animation: navSlideUpDesktop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both;
  }

  @keyframes navSlideUpDesktop {
    from { opacity: 0; transform: translateX(-50%) translateY(20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
  }

  .nav-item {
    min-width: 64px;
    gap: 4px;
  }

  .nav-label {
    font-size: 11px;
    font-weight: 600;
  }
}

/* ─── Desktop Shell: Sidebar + Session Rail ─── */
.app-shell {
  /* flex:1 + min-height:0 constrains the shell to the bounded #app height.
     Avoids the min-height:100% trap where children grow past the viewport
     and .main-content never gets a finite height to scroll within. */
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

.app-main {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
}

.main-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  /* overflow:clip clips border-radius visually without creating a scroll-blocking
     BFC (unlike overflow:hidden). This lets mouse-wheel events reach the inner
     .main-content scroll container rather than being silently consumed here. */
  overflow: clip;
}

.sidebar,
.session-rail {
  display: none;
}

.inspector {
  display: none;
}

@media (min-width: 1400px) {
  :root {
    --sidebar-width: 220px;
  }

  body {
    overflow: hidden;
  }

  .app-shell {
    display: grid;
    grid-template-columns: var(--sidebar-width) var(--rail-width) minmax(0, 1fr);
    grid-template-rows: 1fr;
    grid-template-areas: "sidebar rail main";
    gap: var(--shell-gap);
    padding: var(--shell-gap);
    height: var(--viewport-stable-height);
    overflow: hidden;
  }

  .app-shell[data-has-rail="false"] {
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    grid-template-areas: "sidebar main";
  }

  .app-shell[data-has-inspector="true"] {
    grid-template-columns: var(--sidebar-width) var(--rail-width) minmax(0, 1fr) max(200px, var(--inspector-width));
    grid-template-areas: "sidebar rail main inspector";
  }

  .app-shell[data-has-rail="false"][data-has-inspector="true"] {
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr) max(200px, var(--inspector-width));
    grid-template-areas: "sidebar main inspector";
  }

  .sidebar {
    display: flex;
    flex-direction: column;
    grid-area: sidebar;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 16px;
    gap: 14px;
    box-shadow: var(--shadow-sm);
    min-width: 0;
    position: relative;
    z-index: 20;
  }

  .session-rail {
    display: flex;
    flex-direction: column;
    grid-area: rail;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 12px;
    min-height: 0;
    box-shadow: var(--shadow-sm);
    overflow-y: auto;
    overflow-x: hidden;
  }

  .app-main {
    grid-area: main;
    min-height: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
  }

  .inspector {
    display: flex;
    flex-direction: column;
    grid-area: inspector;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 12px;
    gap: 12px;
    min-height: 0;
    min-width: 200px;
    box-shadow: var(--shadow-sm);
    overflow-y: auto;
    overflow-x: hidden;
  }

  .app-header {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    margin-bottom: var(--space-md);
    position: sticky;
    top: 0;
    background: var(--bg-primary);
    z-index: 5;
  }

  .main-content {
    padding: 20px 24px 32px;
    padding-bottom: 32px;
    max-width: var(--content-max);
    margin: 0 auto;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-gutter: stable;
  }

  .bottom-nav {
    display: none;
  }

  .more-sheet {
    display: none;
  }

  .tablet-action-bar {
    display: none;
  }

  .scroll-top {
    left: auto;
    right: 32px;
    bottom: 32px;
  }

  :root[data-chat-focus="true"] .app-shell[data-tab="chat"] {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "main";
    padding: 0;
    gap: 0;
  }

  :root[data-chat-focus="true"] .app-shell[data-tab="chat"] .sidebar,
  :root[data-chat-focus="true"] .app-shell[data-tab="chat"] .session-rail,
  :root[data-chat-focus="true"] .app-shell[data-tab="chat"] .inspector {
    display: none !important;
  }

  :root[data-chat-focus="true"] .app-shell[data-tab="chat"] .main-panel {
    border-radius: 0;
    border: none;
    box-shadow: none;
  }

  :root[data-chat-focus="true"] .app-shell[data-tab="chat"] .app-header {
    border-radius: 0;
    margin-bottom: 0;
    border-left: none;
    border-right: none;
  }
}

:root[data-desktop="true"] {
  --sidebar-width: 220px;
}

:root[data-desktop="true"] body {
  overflow: hidden;
}

:root[data-desktop="true"] .app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) var(--rail-width) minmax(0, 1fr);
  grid-template-rows: 1fr;
  grid-template-areas: "sidebar rail main";
  gap: var(--shell-gap);
  padding: var(--shell-gap);
  height: var(--viewport-stable-height);
  overflow: hidden;
}

:root[data-desktop="true"] .app-shell[data-has-rail="false"] {
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  grid-template-areas: "sidebar main";
}

:root[data-desktop="true"] .app-shell[data-has-inspector="true"] {
  grid-template-columns: var(--sidebar-width) var(--rail-width) minmax(0, 1fr) max(200px, var(--inspector-width));
  grid-template-areas: "sidebar rail main inspector";
}

:root[data-desktop="true"] .app-shell[data-has-rail="false"][data-has-inspector="true"] {
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr) max(200px, var(--inspector-width));
  grid-template-areas: "sidebar main inspector";
}

:root[data-desktop="true"] .sidebar {
  display: flex;
  flex-direction: column;
  grid-area: sidebar;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 16px;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  min-width: 0;
  position: relative;
  z-index: 20;
}

:root[data-desktop="true"] .session-rail {
  display: flex;
  flex-direction: column;
  grid-area: rail;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px;
  min-height: 0;
  box-shadow: var(--shadow-sm);
  overflow-y: auto;
  overflow-x: hidden;
}

:root[data-desktop="true"] .app-main {
  grid-area: main;
  min-height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

:root[data-desktop="true"] .inspector {
  display: flex;
  flex-direction: column;
  grid-area: inspector;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px;
  gap: 12px;
  min-height: 0;
  min-width: 200px;
  box-shadow: var(--shadow-sm);
  overflow-y: auto;
  overflow-x: hidden;
}

:root[data-desktop="true"] .app-header {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin-bottom: var(--space-md);
  position: sticky;
  top: 0;
  background: var(--bg-primary);
  z-index: 5;
}

:root[data-desktop="true"] .main-content {
  padding: 20px 24px 32px;
  padding-bottom: 32px;
  max-width: var(--content-max);
  margin: 0 auto;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-gutter: stable;
}

:root[data-desktop="true"] .bottom-nav,
:root[data-desktop="true"] .more-sheet,
:root[data-desktop="true"] .tablet-action-bar {
  display: none;
}

/* ═══════════════════════════════════════════════
 *  Tablet Breakpoint (768px – 1399px)
 *  Sidebar & Inspector as slide-over drawers
 * ═══════════════════════════════════════════════ */

/* --- Drawer overlay --- */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 900;
  animation: fadeIn 0.18s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- Drawer panels --- */
.drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  z-index: 910;
  width: min(320px, 85vw);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg, 0 10px 40px rgba(0, 0, 0, 0.3));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  animation: slideDrawer 0.22s ease-out;
}

.drawer-left {
  left: 0;
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}

.drawer-right {
  right: 0;
  left: auto;
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}

@keyframes slideDrawer {
  from { opacity: 0; transform: translateX(-32px); }
  to { opacity: 1; transform: translateX(0); }
}

.drawer-right {
  animation-name: slideDrawerRight;
}

@keyframes slideDrawerRight {
  from { opacity: 0; transform: translateX(32px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Force sidebar / inspector visible inside drawers */
.drawer .sidebar {
  display: flex !important;
  height: 100%;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.drawer .inspector {
  display: flex !important;
  flex-direction: column;
  gap: 12px;
  height: 100%;
  min-height: 0;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

/* --- Tablet action bar --- */
.tablet-action-bar {
  display: none;
}

@media (min-width: 768px) and (max-width: 1399px) {
  .tablet-action-bar {
    display: flex;
    gap: 8px;
    padding: 6px 16px;
    align-items: center;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
  }

  .tablet-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition-fast);
  }

  .tablet-toggle:hover {
    background: var(--accent-subtle);
    color: var(--text-bright);
    border-color: var(--accent);
  }

  .tablet-toggle:active {
    transform: scale(0.97);
  }
}

/* ─── Sidebar styling ─── */
  .sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
  }

.sidebar-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  box-shadow: none;
}

.sidebar-logo svg {
  width: 20px;
  height: 20px;
}

  .sidebar-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-bright);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

.sidebar-subtitle {
  font-size: 11px;
  color: var(--text-secondary);
}

  .sidebar-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    min-width: 0;
  }

  .sidebar-nav-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 12px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    opacity: 0.9;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
    width: 100%;
    text-align: left;
    min-width: 0;
    overflow: hidden;
  }

  .sidebar-nav-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
  }

  .sidebar-nav-item span {
    font-size: 12px;
    letter-spacing: 0.01em;
    color: inherit;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
  }

.sidebar-nav-item:hover {
  background: var(--accent-subtle);
  color: var(--text-bright);
  opacity: 1;
}

.sidebar-nav-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.sidebar-nav-item.active {
  background: var(--bg-card-hover);
  color: var(--accent);
  opacity: 1;
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.22);
}

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding-top: 12px;
  font-size: 11px;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sidebar-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sidebar-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-error);
  box-shadow: none;
}

.sidebar-status.online .sidebar-status-dot {
  background: var(--color-done);
  box-shadow: none;
}

.sidebar-user {
  font-size: 10px;
  color: var(--text-hint);
}

/* ─── Session rail tweaks ─── */
.session-rail .session-list {
  background: transparent;
  border: none;
  box-shadow: none;
  flex: 1;
  min-height: 0;
}

.session-rail .session-list-header {
  padding: 8px 4px 12px;
  border-bottom: 1px solid var(--border);
}

.session-rail .session-search {
  padding: 8px 4px 10px;
}

.session-rail .session-list-scroll {
  max-height: none;
}

.rail-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 2px 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}

.rail-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-bright);
}

.rail-meta {
  font-size: 11px;
  color: var(--text-hint);
}

.rail-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--bg-secondary);
}

/* ─── Inspector styling ─── */
.inspector-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
}

.inspector-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-hint);
}

.inspector-kv {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}

.inspector-kv strong {
  color: var(--text-bright);
  font-weight: 600;
  min-width: 0;
  max-width: 64%;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.inspector-kv.inspector-kv-preview {
  align-items: flex-start;
}

.inspector-kv.inspector-kv-preview .inspector-preview-value {
  max-width: 64%;
  text-align: left;
  white-space: normal;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.inspector-empty {
  padding: 16px 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 12px;
}

.inspector-scroll {
  overflow-y: auto;
  min-height: 120px;
  max-height: 320px;
}

.inspector-subtitle {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-hint);
}

.inspector-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.inspector-metric {
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  border-radius: 10px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.inspector-metric .label {
  font-size: 10px;
  color: var(--text-hint);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.inspector-metric strong {
  font-size: 13px;
  color: var(--text-bright);
}

.inspector-context {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--bg-secondary);
}

.inspector-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.inspector-pill {
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 11px;
  line-height: 1.3;
}

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

.inspector-breakdown-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 11px;
  color: var(--text-secondary);
}

.inspector-breakdown-row strong {
  color: var(--text-bright);
}

.inspector .diff-viewer {
  border-radius: 12px;
  background: var(--bg-elevated);
  border-color: var(--border);
}

.inspector .diff-summary {
  padding: 8px 10px;
  font-size: 12px;
}

.inspector .diff-file-header {
  padding: 8px 10px;
  font-size: 12px;
}

.inspector .diff-line {
  font-size: 11px;
  padding: 1px 10px;
}

@media (min-width: 1400px) {
  .app-shell[data-has-rail="true"] .main-content {
    max-width: none;
  }

  .app-shell[data-tab="tasks"] .main-content {
    max-width: none;
  }

}

@media (min-width: 1200px) {
  /* Desktop: bottom nav is hidden, so remove reserved chat bottom padding. */
  .app-shell[data-tab="chat"] .main-content {
    padding-bottom: 0;
    /* flex:1 flows height down to the session-split so the input can stick */
    flex: 1;
    min-height: 0;
  }

  /* PullToRefresh container must also flex to pass height down */
  .app-shell[data-tab="chat"] .pull-to-refresh-container {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }
}

.app-shell[data-tab="chat"] .main-content {
  padding-top: 0;
  padding-left: calc(var(--safe-left));
  padding-right: calc(var(--safe-right));
  /* Reserve space at the bottom for the fixed nav bar plus the on-screen
     keyboard height (--chat-keyboard-offset is set live by visualViewport). */
  padding-bottom: calc(var(--nav-height, 60px) + var(--safe-bottom, 0px) + 8px + var(--chat-keyboard-offset, 0px));
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.app-shell[data-tab="fleet-sessions"] .main-content {
  max-width: none;
}

.app-shell[data-tab="chat"] .main-content > * {
  min-height: 0;
}

/* Prevent chat-input-area from collapsing on mobile — it must stay visible
   above the bottom-nav, even when vertical space is tight. */
.app-shell[data-tab="chat"] .main-content .chat-input-area {
  flex: 0 0 auto;
  min-height: auto;
}

@media (max-width: 768px) {
  .app-shell[data-tab="chat"] .main-panel {
    border-radius: 0;
    border: none;
    box-shadow: none;
    background: var(--bg-primary);
  }

  .app-shell[data-tab="chat"] .main-content {
    background: var(--bg-primary);
  }
}

.inspector-log-line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  padding: 8px 10px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  margin-bottom: 6px;
  word-break: break-word;
  position: relative;
  overflow: hidden;
}

.inspector-log-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-strong);
  opacity: 0.7;
}

.inspector-log-line.warn::before {
  background: var(--color-inreview);
}

.inspector-log-line.error::before {
  background: var(--color-error);
}

.inspector-log-level {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-hint);
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-1);
  line-height: 1.2;
  flex-shrink: 0;
}

.inspector-log-line.warn .inspector-log-level {
  color: var(--color-inreview);
  border-color: rgba(245, 158, 11, 0.4);
}

.inspector-log-line.error .inspector-log-level {
  color: var(--color-error);
  border-color: rgba(239, 68, 68, 0.45);
}

.inspector-log-text {
  flex: 1;
  min-width: 0;
}

.inspector-log-line.warn {
  border-color: rgba(245, 158, 11, 0.25);
  color: rgba(245, 158, 11, 0.9);
  background: rgba(245, 158, 11, 0.08);
}

.inspector-log-line.error {
  border-color: rgba(248, 113, 113, 0.3);
  color: rgba(248, 113, 113, 0.9);
  background: rgba(248, 113, 113, 0.1);
}

body.is-resizing,
body.is-resizing * {
  cursor: col-resize !important;
  user-select: none;
}

@media (min-width: 1400px) {
  .session-rail,
  .inspector {
    position: relative;
  }

  .rail-resizer,
  .inspector-resizer {
    position: absolute;
    top: 12px;
    bottom: 12px;
    width: 14px;
    z-index: 20;
    cursor: col-resize;
  }

  .rail-resizer {
    right: -7px;
  }

  .inspector-resizer {
    left: -7px;
  }

  .rail-resizer::after,
  .inspector-resizer::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    left: 6px;
    background: rgba(148, 163, 184, 0.25);
    opacity: 0;
    transition: opacity var(--transition-fast), background var(--transition-fast);
  }

  .session-rail:hover .rail-resizer::after,
  .inspector:hover .inspector-resizer::after {
    opacity: 1;
  }

  .rail-resizer:hover::after,
  .inspector-resizer:hover::after {
    background: rgba(59, 130, 246, 0.4);
  }
}

@media (min-width: 1400px) {
  .inspector .diff-viewer {
    max-height: 260px;
    overflow-y: auto;
  }
}

/* ── MUI nav icon sizing ─────────────────────────────────────────────────
   The ICONS map returns bare <svg viewBox="0 0 24 24"> with no width/height.
   Primary fix is in the MUI theme (mui.js styleOverrides); these rules are
   fallback for any edge cases where theme styles aren't injected yet.
 ──────────────────────────────────────────────────────────────────────── */

/* Vertical sidebar Tabs — fallback */
.sidebar .MuiTab-root {
  flex-direction: row !important;
  gap: 8px !important;
  color: var(--text-primary) !important;
  opacity: 0.95 !important;
}

.sidebar .MuiTab-root.Mui-selected {
  color: var(--accent) !important;
  opacity: 1 !important;
}

.sidebar .MuiTab-root:hover {
  opacity: 1 !important;
}
.MuiTab-iconWrapper {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex-shrink: 0 !important;
  width: 20px !important;
  height: 20px !important;
  margin-bottom: 0 !important;
  margin-right: 0 !important;
}
.MuiTab-iconWrapper svg {
  width: 100% !important;
  height: 100% !important;
}

/* Bottom Navigation — fallback */
.MuiBottomNavigationAction-root svg {
  width: 24px !important;
  height: 24px !important;
  flex-shrink: 0 !important;
}

/* ═══════════════════════════════════════════════════════
   Sidebar: icon-only collapsed mode (VS Code style)
═══════════════════════════════════════════════════════ */

.sidebar {
  transition: width 0.22s cubic-bezier(0.32, 0.72, 0, 1),
              padding 0.22s cubic-bezier(0.32, 0.72, 0, 1);
}

.sidebar-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  flex-shrink: 0;
}

.sidebar-collapse-btn {
  display: none; /* shown only on desktop */
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: color 0.15s, background 0.15s;
  line-height: 1;
}

.sidebar-collapse-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover, rgba(148,163,184,0.12));
}

@media (min-width: 1400px) {
  .sidebar-collapse-btn {
    display: flex;
  }

  /* ── Override --sidebar-width CSS var when sidebar is collapsed ── */
  .app-shell[data-sidebar-collapsed="true"] {
    --sidebar-width: 54px;
  }

  /* ── Icon-only sidebar styles ── */
  .sidebar.sidebar-icon-only,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar {
    padding: 12px 8px;
    align-items: center;
    overflow: visible;
  }

  .sidebar.sidebar-icon-only .sidebar-brand-row,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-brand-row {
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }

  .sidebar.sidebar-icon-only .sidebar-brand-row .sidebar-title,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-brand-row .sidebar-title {
    display: none;
  }

  .sidebar.sidebar-icon-only .sidebar-actions,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-actions {
    display: none;
  }

  .sidebar.sidebar-icon-only .sidebar-nav,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-nav {
    width: 100%;
    align-items: center;
  }

  .sidebar.sidebar-icon-only .sidebar-nav-item,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-nav-item {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm, 6px);
    padding: 0;
    overflow: visible;
  }

  .sidebar.sidebar-icon-only .sidebar-nav-item span:not(.nav-icon),
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-nav-item span:not(.nav-icon) {
    display: none;
  }

  .sidebar.sidebar-icon-only .sidebar-footer .sidebar-user,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-footer .sidebar-user {
    display: none;
  }

  .sidebar.sidebar-icon-only .sidebar-footer,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-footer {
    align-items: center;
    padding: 0;
  }

  .sidebar-actions-icon {
    display: none;
  }

  .sidebar.sidebar-icon-only .sidebar-actions-icon,
  .app-shell[data-sidebar-collapsed="true"] > .sidebar .sidebar-actions-icon {
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: center;
  }

  .sidebar-icon-action {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm, 6px);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-size: 16px;
    transition: color 0.15s, background 0.15s;
  }

  .sidebar-icon-action svg {
    width: 1em;
    height: 1em;
    display: inline-block;
  }

  .sidebar-icon-action:hover {
    color: var(--text-primary);
    background: var(--bg-hover, rgba(148,163,184,0.12));
  }
}

/* ═══════════════════════════════════════════════════════
   SessionRail: icon-only collapsed mode
═══════════════════════════════════════════════════════ */

@media (min-width: 1400px) {
  /* ── Override --rail-width when rail is collapsed ── */
  .app-shell[data-rail-collapsed="true"] {
    --rail-width: 54px;
  }

  .session-rail {
    transition: width 0.22s cubic-bezier(0.32, 0.72, 0, 1);
  }

  /* ── Collapsed icon strip ── */
  .session-rail.session-rail--collapsed {
    padding: 8px 6px;
    align-items: center;
    overflow: visible;
  }

  .rail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    flex-shrink: 0;
    margin-bottom: 8px;
  }

  .rail-header-inner {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .rail-header h3 {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
  }

  .rail-active-count {
    font-size: 10px;
    background: var(--accent, #3b82f6);
    color: #fff;
    border-radius: 10px;
    padding: 1px 6px;
    font-weight: 600;
    line-height: 1.4;
  }

  .rail-collapse-btn,
  .rail-expand-btn {
    width: 26px;
    height: 26px;
    border-radius: var(--radius-sm, 6px);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: color 0.15s, background 0.15s;
    flex-shrink: 0;
  }

  .rail-collapse-btn:hover,
  .rail-expand-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover, rgba(148,163,184,0.12));
  }

  /* ── Dot strip ── */
  .rail-dots {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 0;
    width: 100%;
  }

  .rail-session-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
    cursor: pointer;
    flex-shrink: 0;
    transition: transform 0.15s, box-shadow 0.15s;
  }

  .rail-session-dot:hover {
    transform: scale(1.4);
  }

  .rail-session-dot.selected {
    width: 12px;
    height: 12px;
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
  }

  .rail-session-dot.active {
    background: #22c55e;
  }

  .rail-session-dot.error {
    background: #ef4444;
  }

  .rail-session-dot.archived {
    background: rgba(100,116,139,0.4);
  }

  .rail-icon-footer {
    flex-shrink: 0;
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }

  /* ── Collapsed full-rail: hide normal list ── */
  .session-rail.session-rail--collapsed > :not(.rail-header):not(.rail-dots):not(.rail-icon-footer) {
    display: none !important;
  }
}

/* ─── Reduced Motion ─── */
/* Respect the user's OS-level preference to reduce motion. */
@media (prefers-reduced-motion: reduce) {
  /* Disable decorative entrance/exit animations */
  .main-content > *,
  .bottom-nav,
  .drawer,
  .nav-item.active::before {
    animation: none !important;
  }

  /* Silence the continuous pulsing connection indicator */
  .connection-dot,
  .connection-pill.connected .connection-dot::after {
    animation: none !important;
  }

  /* Make the sidebar / rail collapse transitions instant */
  .sidebar,
  .session-rail {
    transition: none !important;
  }

  /* Shorten all interactive transitions (buttons, nav, cards) to near-instant */
  .nav-item,
  .nav-item svg,
  .more-menu-item,
  .sidebar-nav-item,
  .connection-pill {
    transition-duration: 50ms !important;
  }
}