/* SessionHub Terminal Styles - Dark Theme */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
  background-color: #1a1a1a;
  color: #d4d4d4;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ======== Login Overlay ======== */

.login-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #1a1a1a;
  z-index: 10000;
}

.login-card {
  background: #252526;
  border: 1px solid #3c3c3c;
  border-radius: 8px;
  padding: 40px;
  width: 360px;
  text-align: center;
}

.login-card h1 {
  color: #e0e0e0;
  font-size: 24px;
  margin-bottom: 8px;
}

.login-card p {
  color: #888;
  font-size: 14px;
  margin-bottom: 24px;
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#login-password {
  padding: 10px 14px;
  background: #1e1e1e;
  border: 1px solid #3c3c3c;
  border-radius: 4px;
  color: #d4d4d4;
  font-size: 14px;
  outline: none;
}

#login-password:focus {
  border-color: #007acc;
}

#login-form button[type="submit"] {
  padding: 10px 14px;
  background: #007acc;
  border: none;
  border-radius: 4px;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}

#login-form button[type="submit"]:hover {
  background: #0098ff;
}

.login-error {
  color: #f14c4c;
  font-size: 13px;
  min-height: 20px;
}

/* ======== App Shell Layout ======== */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width, 280px) 1fr;
  height: 100%;
  width: 100%;
}

.app-shell.sidebar-collapsed {
  grid-template-columns: 0 1fr;
}

.app-shell.sidebar-collapsed .sidebar {
  width: 0 !important;
  border-right: none;
  overflow: hidden;
}

/* Sidebar expand button - hidden by default, shown in header when collapsed */
.sidebar-expand-btn {
  display: none;
  /* Positioned inside viewport-header when visible */
}

/* When sidebar is collapsed, show expand button in viewport header */
.app-shell.sidebar-collapsed .viewport-header {
  padding-left: 0; /* Remove left padding to accommodate button */
}

.app-shell.sidebar-collapsed .sidebar-expand-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  position: static; /* Part of normal flow in header */
  height: 100%;
  min-width: 44px;
  padding: 0 12px;
  background: #252526;
  border: none;
  border-right: 1px solid #3c3c3c;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
}

.app-shell.sidebar-collapsed .sidebar-expand-btn:hover {
  color: var(--text-primary);
  background: #2a2a2a;
}

/* Main content area */
.main-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-width: 0;
  overflow: hidden;
  padding-bottom: 28px; /* Space for fixed status bar */
}

/* Terminal viewport - fills main content when session is active */
.terminal-viewport {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
}

/* ======== Sidebar Styles ======== */

:root {
  --sidebar-width: 280px;
  --sidebar-bg: #252526;
  --sidebar-border: #3c3c3c;
  --card-bg: #2d2d2d;
  --card-hover: #323232;
  --card-selected: #094771;
  --text-primary: #d4d4d4;
  --text-secondary: #6c6c6c;
  --accent: #4ec9b0;
  --status-asking-user: #d97706; /* Amber-600 */
  --header-height: 44px; /* Shared height for sidebar and viewport headers */
}

.sidebar {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  min-width: 0;
  overflow: hidden;
  transition: none; /* Instant collapse per user decision */
}

/* Sidebar header - uses shared header height */
.sidebar-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--sidebar-border);
  min-height: var(--header-height);
  box-sizing: border-box;
}

.sidebar-header-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-action-row {
  display: flex;
  gap: 8px;
}

.search-input {
  flex: 1;
  min-width: 0;
  background: #3c3c3c;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  padding: 6px 10px;
  color: var(--text-primary);
  font-size: 13px;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent);
}

.search-input::placeholder {
  color: var(--text-secondary);
}

.create-btn {
  flex: 1;
  min-width: 0;
  height: 32px;
  background: var(--accent);
  border: none;
  border-radius: 4px;
  color: #1a1a1a;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.create-btn:hover {
  background: #5fdbc4;
}

/* Create Group button */
.create-group-btn {
  flex: 1;
  min-width: 0;
  height: 32px;
  background: #3c3c3c;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.create-group-btn:hover {
  background: #4c4c4c;
  border-color: var(--accent);
}

/* Collapse button in header */
.sidebar-header .collapse-btn {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 12px;
}

.sidebar-header .collapse-btn:hover {
  color: var(--text-primary);
}

/* Session list */
.session-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

/* Session card styles */
.session-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--sidebar-border);
  cursor: pointer;
  user-select: none;
}

.session-card:hover {
  background-color: var(--card-hover);
}

.session-card.selected {
  background-color: var(--card-selected);
}

.session-card.dragging {
  opacity: 0.5;
}

/* Session card status dot - matches header status dot but for sidebar */
.session-card .status-dot {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  align-self: center;
  transition: background-color 0.2s ease;
}

.session-card .status-dot.reconnecting {
  background-color: #dcdcaa;
  animation: pulse 1s ease-in-out infinite;
}

/* Two-row session card content */
.session-card-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.session-card-row1 {
  display: flex;
  align-items: center;
}

.session-card-row1 .session-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 14px;
  color: var(--text-primary);
  font-weight: normal;
}

.session-card-row2 {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
}

/* Selected card has brighter subtitle */
.session-card.selected .session-card-row2 {
  color: var(--text-primary);
}

/* Subtitle separator (middle dot) */
.subtitle-separator {
  color: var(--text-secondary);
}

/* Status label colors matching dot */
.status-label { color: var(--text-secondary); }
.status-label.running { color: #0dbc79; }
.status-label.waiting_for_input { color: #2472c8; }
.status-label.asking_user { color: var(--status-asking-user); }
.status-label.idle { color: #6c6c6c; }
.status-label.error { color: #f14c4c; }
.status-label.unknown { color: var(--text-secondary); }

/* Idle session dimming */
.session-card:has(.status-dot.idle) {
  opacity: 0.7;
}

/* Fallback for browsers without :has() */
.session-card.idle-session {
  opacity: 0.7;
}

/* Session name and activity (legacy fallback) */
.session-card .session-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 14px;
  color: var(--text-primary);
  font-weight: normal;
}

.last-activity {
  font-size: 11px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

/* Sidebar footer */
.sidebar-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 8px 12px;
  border-top: 1px solid var(--sidebar-border);
  font-size: 12px;
  color: var(--text-secondary);
}

.collapse-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  font-size: 12px;
}

.collapse-btn:hover {
  color: var(--text-primary);
}

/* Resize handle */
.resize-handle {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  cursor: col-resize;
  background-color: transparent;
}

.resize-handle:hover,
.resize-handle.resizing {
  background-color: var(--accent);
}

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-secondary);
  text-align: center;
  gap: 16px;
}

.empty-state h2 {
  font-weight: normal;
  color: var(--text-primary);
}

.empty-state p {
  font-size: 14px;
}

.create-session-btn {
  padding: 10px 20px;
  background: var(--accent);
  border: none;
  border-radius: 4px;
  color: #1a1a1a;
  cursor: pointer;
  font-size: 14px;
}

.create-session-btn:hover {
  background: #5fdbc4;
}

/* Drop indicator for drag reorder */
.drop-indicator {
  height: 2px;
  background-color: var(--accent);
  margin: -1px 0;
}

/* Group drop indicator (thicker) */
.drop-indicator-group {
  height: 3px;
}

/* Group drag-over highlight */
.group-node.drag-over > .group-header {
  background-color: rgba(78, 201, 176, 0.15);
}

.group-header.drop-indicator-into {
  background-color: rgba(78, 201, 176, 0.25);
  outline: 1px dashed var(--accent);
  outline-offset: -1px;
}

/* ======== Group Tree ======== */

/* All Sessions pseudo-group */
.all-sessions-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  cursor: pointer;
  user-select: none;
  background-color: var(--sidebar-bg);
  border-bottom: 1px solid var(--sidebar-border);
}

.all-sessions-item:hover {
  background-color: var(--card-hover);
}

.all-sessions-item.selected {
  background-color: var(--card-selected);
}

.all-sessions-icon {
  font-size: 14px;
  color: var(--text-secondary);
}

.all-sessions-label {
  flex: 1;
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

/* Group node */
.group-node {
  border-bottom: 1px solid var(--sidebar-border);
}

.group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 8px 10px 12px;
  cursor: pointer;
  user-select: none;
}

.group-header:hover {
  background-color: var(--card-hover);
}

.group-header.selected {
  background-color: var(--card-selected);
}

.group-header.dragging {
  opacity: 0.5;
}

/* Collapse arrow */
.collapse-arrow {
  font-size: 10px;
  color: var(--text-secondary);
  width: 12px;
  text-align: center;
  transition: transform 0.15s ease;
  cursor: pointer;
}

.collapse-arrow:hover {
  color: var(--text-primary);
}

.collapse-arrow.no-children {
  visibility: hidden;
}

.group-node.collapsed .collapse-arrow {
  transform: rotate(0deg);
}

/* Group icon (folder) */
.group-icon {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background-color: #6c6c6c;
  flex-shrink: 0;
}

/* Group name */
.group-header .group-name {
  flex: 1;
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Group status summary */
.group-status-summary {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

/* Status badges (mini-dots with count) */
.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  font-size: 10px;
  font-weight: 600;
  color: white;
}

.status-badge.asking {
  background-color: var(--status-asking-user);
}

.status-badge.waiting {
  background-color: #2472c8;
}

.status-badge.running {
  background-color: #0dbc79;
}

.status-badge.error {
  background-color: #f14c4c;
}

/* Group children container */
.group-children {
  display: block;
}

/* Session item within group */
.group-session-item {
  /* Inherits from parent padding */
}

.group-session-item .session-card {
  border-bottom: none;
  padding-left: 8px;
}

/* ======== Context Menu ======== */

.context-menu {
  position: fixed;
  z-index: 1000;
  background: #3c3c3c;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  padding: 4px 0;
  min-width: 140px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  display: none;
}

.context-menu.visible {
  display: block;
}

.context-menu button {
  display: block;
  width: 100%;
  padding: 8px 16px;
  background: none;
  border: none;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  font-size: 13px;
}

.context-menu button:hover {
  background: #4c4c4c;
}

.context-menu button.danger {
  color: #f14c4c;
}

.context-menu hr {
  border: none;
  border-top: 1px solid #5c5c5c;
  margin: 4px 0;
}

/* ======== Color Picker Menu ======== */

.color-picker-menu {
  position: fixed;
  z-index: 1001;
  background: #3c3c3c;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  padding: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  display: none;
}

.color-picker-menu.visible {
  display: block;
}

.color-swatches {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.color-swatch {
  width: 24px;
  height: 24px;
  border: 2px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  padding: 0;
}

.color-swatch:hover {
  border-color: white;
  transform: scale(1.1);
}

/* ======== Inline Edit ======== */

.inline-edit {
  flex: 1;
  background: #1a1a1a;
  border: 1px solid var(--accent);
  border-radius: 2px;
  padding: 2px 6px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}

/* ======== Kill Confirmation Modal ======== */

.kill-confirmation-modal {
  background: #2d2d2d;
  border: 1px solid #5c5c5c;
  border-radius: 8px;
  padding: 24px;
  max-width: 400px;
  color: var(--text-primary);
}

.kill-confirmation-modal::backdrop {
  background: rgba(0, 0, 0, 0.6);
}

.kill-confirmation-modal h2 {
  margin: 0 0 12px;
  font-weight: 500;
  font-size: 18px;
}

.kill-confirmation-modal p {
  margin: 0 0 24px;
  color: var(--text-secondary);
  font-size: 14px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.modal-actions button {
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
}

.modal-actions button[value="cancel"] {
  background: #3c3c3c;
  color: var(--text-primary);
}

.modal-actions button[value="cancel"]:hover {
  background: #4c4c4c;
}

.modal-actions button.danger {
  background: #f14c4c;
  color: white;
}

.modal-actions button.danger:hover {
  background: #ff6b6b;
}

/* ======== Create Session Modal ======== */

.create-session-modal {
  background: #2d2d2d;
  border: 1px solid #5c5c5c;
  border-radius: 8px;
  padding: 24px;
  width: 440px;
  max-width: 90vw;
  color: var(--text-primary);
}

.create-session-modal::backdrop {
  background: rgba(0, 0, 0, 0.6);
}

.create-session-modal h2 {
  margin: 0 0 20px;
  font-weight: 500;
  font-size: 18px;
}

.form-field {
  margin-bottom: 16px;
  position: relative;
}

.form-field label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}

.form-field input,
.form-field select {
  width: 100%;
  background: #1a1a1a;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  padding: 10px 12px;
  color: var(--text-primary);
  font-size: 14px;
}

.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-field input::placeholder {
  color: var(--text-secondary);
}

.form-field select {
  cursor: pointer;
}

.field-hint {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--text-secondary);
}

/* Recent directories dropdown */
.recent-dirs-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #3c3c3c;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  margin-top: 2px;
  z-index: 10;
  max-height: 150px;
  overflow-y: auto;
}

.recent-dir-item {
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.recent-dir-item:hover {
  background: #4c4c4c;
}

/* Modal action buttons */
.cancel-btn {
  background: #3c3c3c;
  color: var(--text-primary);
  border: none;
  border-radius: 4px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
}

.cancel-btn:hover {
  background: #4c4c4c;
}

.primary-btn {
  background: var(--accent);
  color: #1a1a1a;
  border: none;
  border-radius: 4px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
}

.primary-btn:hover {
  background: #5fdbc4;
}

/* ======== Terminal Header ======== */

/* Header bar */
.header-bar {
  height: 32px;
  background-color: #252526;
  border-bottom: 1px solid #3c3c3c;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  font-size: 13px;
}

.session-name {
  font-weight: 500;
  color: #cccccc;
}

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

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #6c6c6c;
  transition: background-color 0.3s ease;
}

.status-dot.connected {
  background-color: #4ec9b0;
}

.status-dot.connecting {
  background-color: #dcdcaa;
  animation: pulse 1s ease-in-out infinite;
}

.status-dot.disconnected {
  background-color: #f14c4c;
}

.status-dot.reconnecting {
  background-color: #dcdcaa;
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.status-text {
  color: #9d9d9d;
  font-size: 12px;
}

/* ======== Terminal Viewport (TerminalManager) ======== */

.terminal-viewport {
  flex: 1;
  position: relative;
  min-height: 0;
  background: #1a1a1a;
  padding: 4px;
  display: none;
}

.terminal-instance {
  position: absolute;
  inset: 4px;
  display: flex;
  flex-direction: column;
}

.terminal-instance .terminal-container {
  flex: 1;
  position: relative;
}

.reconnect-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 26, 0.7);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 100;
  color: var(--text-primary);
}

.reconnect-overlay .spinner {
  width: 24px;
  height: 24px;
}

.reconnect-message {
  font-size: 14px;
}

/* Viewport header - uses shared header height */
.viewport-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: #252526;
  border-bottom: 1px solid #3c3c3c;
  min-height: var(--header-height);
  height: var(--header-height);
  box-sizing: border-box;
}

.viewport-header.hidden {
  display: none;
}

/* When header is hidden, show a thin strip at top to restore it */
.header-restore-zone {
  height: 4px;
  background: transparent;
  cursor: pointer;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: none;
}

.viewport-header.hidden ~ .header-restore-zone {
  display: block;
}

.header-restore-zone:hover {
  background: var(--accent);
}

.viewport-session-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.viewport-header .status-dot {
  width: 8px;
  height: 8px;
}

.viewport-header .status-text {
  font-size: 12px;
  color: var(--text-secondary);
}

/* View mode toggle */
.view-mode-toggle {
  display: flex;
  gap: 4px;
  margin-left: auto;
  margin-right: 12px;
}

.view-mode-btn {
  background: #3c3c3c;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  padding: 4px 8px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}

.view-mode-btn.active {
  background: var(--accent);
  color: #1a1a1a;
  border-color: var(--accent);
}

.view-mode-btn:hover:not(.active) {
  background: #4c4c4c;
  color: var(--text-primary);
}

/* Terminal container */
.terminal-container {
  height: 100%;
  position: relative;
  background-color: #1a1a1a;
}

/* Ensure xterm takes full space */
.terminal-container .xterm {
  height: 100%;
  padding: 4px;
}

.terminal-container .xterm-viewport {
  overflow-y: auto !important;
}

/* Loading overlay */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(26, 26, 26, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 100;
  color: #d4d4d4;
  font-size: 14px;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid #3c3c3c;
  border-top-color: #4ec9b0;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Window too small message */
.too-small-message {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(26, 26, 26, 0.95);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 99;
  color: #dcdcaa;
  font-size: 16px;
  font-weight: 500;
}

.too-small-hint {
  font-size: 12px;
  color: #9d9d9d;
  font-weight: normal;
}

/* Reconnecting banner - can be used for overlay if needed */
.reconnect-banner {
  position: absolute;
  top: 32px;
  left: 0;
  right: 0;
  background-color: rgba(220, 220, 170, 0.9);
  color: #1a1a1a;
  text-align: center;
  padding: 4px;
  font-size: 12px;
  z-index: 50;
  display: none;
}

.reconnect-banner.visible {
  display: block;
}

/* New output indicator */
.new-output-indicator {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #4ec9b0;
  color: #1a1a1a;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  z-index: 60;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.new-output-indicator.has-new-output {
  opacity: 1;
  visibility: visible;
}

.new-output-indicator:hover {
  background-color: #5fdbc4;
}

/* Scrollbar styling for terminal */
.xterm-viewport::-webkit-scrollbar {
  width: 10px;
}

.xterm-viewport::-webkit-scrollbar-track {
  background: #1a1a1a;
}

.xterm-viewport::-webkit-scrollbar-thumb {
  background-color: #424242;
  border-radius: 5px;
  border: 2px solid #1a1a1a;
}

.xterm-viewport::-webkit-scrollbar-thumb:hover {
  background-color: #555555;
}

/* ======== Leader Key Indicator ======== */

.leader-indicator {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--accent);
  color: #1a1a1a;
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 500;
  z-index: 9999;
  display: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

body.leader-active .leader-indicator {
  display: block;
}

/* Selection color */
::selection {
  background-color: #264f78;
}

/* ======== Session Status Dots ======== */

/* Base status dot styles (sidebar session cards) */
.session-card .status-dot.waiting_for_input,
.session-card .status-dot.running,
.session-card .status-dot.idle,
.session-card .status-dot.error,
.session-card .status-dot.unknown {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}

/* Static states */
.session-card .status-dot.running {
  background-color: #0dbc79;
}

.session-card .status-dot.idle {
  background-color: #6c6c6c;
}

.session-card .status-dot.error {
  background-color: #f14c4c;
}

/* Unknown state - gray with "?" overlay */
.session-card .status-dot.unknown {
  background-color: #6c6c6c;
}

.session-card .status-dot.unknown::after {
  content: '?';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 6px;
  color: white;
  font-weight: bold;
  line-height: 1;
}

/* Waiting for input - blue with continuous pulse animation */
.session-card .status-dot.waiting_for_input {
  background-color: #2472c8;
  animation: pulse-waiting 2s ease-in-out infinite;
}

@keyframes pulse-waiting {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(36, 114, 200, 0.7);
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 0 0 4px rgba(36, 114, 200, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(36, 114, 200, 0);
  }
}

/* Respect motion preferences */
@media (prefers-reduced-motion: reduce) {
  .session-card .status-dot.waiting_for_input {
    animation: pulse-waiting-reduced 2s ease-in-out infinite;
  }
}

@keyframes pulse-waiting-reduced {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* Asking user status - amber with faster pulse */
.session-card .status-dot.asking_user,
.status-dot.asking_user {
  background-color: var(--status-asking-user);
  animation: pulse-asking 1.2s ease-in-out infinite;
}

@keyframes pulse-asking {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(217, 119, 6, 0.7);
  }
  50% {
    transform: scale(1.15);
    box-shadow: 0 0 0 5px rgba(217, 119, 6, 0);
  }
}

/* Status dot tooltip using CSS [data-tooltip] pattern */
.session-card .status-dot[data-tooltip] {
  cursor: help;
}

.session-card .status-dot[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 8px;
  background-color: #3c3c3c;
  color: #d4d4d4;
  font-size: 11px;
  white-space: nowrap;
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 1000;
  pointer-events: none;
  margin-bottom: 4px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.session-card .status-dot[data-tooltip]:hover::before {
  opacity: 1;
  visibility: visible;
}

/* ======== Status Bar ======== */

.status-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #252526;
  border-top: 1px solid #3c3c3c;
  padding: 4px 12px;
  font-size: 12px;
  z-index: 100;
  transition: max-height 0.2s ease-in-out;
  max-height: 28px;
  overflow: hidden;
}

.status-bar.expanded {
  max-height: 200px;
}

.status-bar-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 20px;
  cursor: pointer;
  user-select: none;
}

.status-count {
  color: var(--text-secondary);
}

.status-count.waiting.has-waiting {
  color: #2472c8;
  font-weight: 600;
}

.status-count.error {
  color: #f14c4c;
}

.status-separator {
  color: #6c6c6c;
}

.status-spacer {
  flex: 1;
}

.detection-health {
  color: #6c6c6c;
  font-size: 11px;
}

.expand-indicator {
  color: #6c6c6c;
  font-size: 10px;
  margin-left: 4px;
}

/* Server Stats in Status Bar */
.server-stats {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #6c6c6c;
}

.server-stats.unavailable {
  font-style: italic;
}

.server-stat {
  font-size: 11px;
}

.server-stat.memory {
  color: #4ec9b0;
}

.server-stat.connections {
  color: #dcdcaa;
}

.server-stat.uptime {
  color: #9cdcfe;
}

/* Warning state for server stats */
.server-stat.warning {
  color: #f14c4c;
  font-weight: 600;
}

.status-bar-details {
  padding-top: 8px;
  border-top: 1px solid #3c3c3c;
  margin-top: 4px;
  max-height: 160px;
  overflow-y: auto;
}

.status-group {
  margin-bottom: 8px;
}

.status-group:last-child {
  margin-bottom: 0;
}

.status-group-label {
  color: #6c6c6c;
  text-transform: uppercase;
  font-size: 10px;
  font-weight: 600;
  margin-right: 8px;
}

.status-group-waiting_for_input .status-group-label {
  color: #2472c8;
}

.status-group-error .status-group-label {
  color: #f14c4c;
}

/* Status bar asking_user styling */
.status-group-asking_user .status-group-label {
  color: var(--status-asking-user);
}

.status-count.asking {
  color: var(--status-asking-user);
}

.status-session-link {
  color: #d4d4d4;
  text-decoration: none;
  margin-right: 12px;
  padding: 2px 4px;
  border-radius: 2px;
}

/* Session meta in expanded status bar */
.status-session-link .session-meta {
  font-size: 10px;
  color: var(--text-secondary);
  margin-left: 8px;
}

.status-session-link:hover {
  background-color: #3c3c3c;
  text-decoration: underline;
}

/* ======== Toast Notifications ======== */

#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background-color: #3c3c3c;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  color: var(--text-primary);
  font-size: 13px;
  min-width: 280px;
  max-width: 400px;
  opacity: 0;
  transform: translateX(100%);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: auto;
}

.toast.visible {
  opacity: 1;
  transform: translateX(0);
}

.toast.dismissing {
  opacity: 0;
  transform: translateX(100%);
}

.toast-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.toast-message {
  flex: 1;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.toast-close:hover {
  color: var(--text-primary);
}

/* Toast type variants */
.toast-info {
  border-left: 3px solid #2472c8;
}

.toast-warning {
  border-left: 3px solid #dcdcaa;
}

.toast-error {
  border-left: 3px solid #f14c4c;
}

/* ======== Grid View ======== */

.grid-container {
  display: grid;
  /* Use min() to guarantee at least 2 columns while still preferring 640px panes when space permits.
     calc(50% - 8px) ensures 2 columns fit (accounting for gap), but min() allows up to 640px
     if the container is wide enough. This fixes the 1-column layout when sidebar is visible. */
  grid-template-columns: repeat(auto-fill, minmax(min(640px, calc(50% - 8px)), 1fr));
  gap: 8px;
  padding: 8px;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
}

/* List view mode */
.grid-container.list-view {
  display: flex;
  flex-direction: column;
}

.grid-container.list-view .grid-pane {
  flex: none;
  height: 70vh;
  min-height: 400px;
  max-height: 800px;
}

.grid-container.list-view .grid-pagination {
  flex: none;
  position: sticky;
  bottom: 0;
  background: var(--sidebar-bg);
}

.grid-pane {
  --pane-accent-color: #6c6c6c;
  display: flex;
  flex-direction: column;
  border: 1px solid #3c3c3c;
  border-radius: 4px;
  min-height: 400px;
  background: #1a1a1a;
  position: relative;
}

/* Group color accent on left border */
.grid-pane::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--pane-accent-color);
  border-radius: 4px 0 0 4px;
}

.grid-pane.focused {
  border-color: #4ec9b0;
  box-shadow: 0 0 0 1px #4ec9b0;
}

/* Pane header */
.pane-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: #252526;
  border-bottom: 1px solid #3c3c3c;
  font-size: 12px;
  border-radius: 4px 4px 0 0;
}

.pane-header .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.pane-header .status-dot.waiting_for_input {
  background-color: #2472c8;
  animation: pulse-waiting 2s ease-in-out infinite;
}

.pane-header .status-dot.running {
  background-color: #0dbc79;
}

.pane-header .status-dot.idle {
  background-color: #6c6c6c;
}

.pane-header .status-dot.error {
  background-color: #f14c4c;
}

.pane-header .status-dot.unknown {
  background-color: #6c6c6c;
}

.pane-header .session-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
  font-weight: 500;
}

.expand-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  font-size: 14px;
  line-height: 1;
  border-radius: 2px;
}

.expand-btn:hover {
  background: #3c3c3c;
  color: var(--text-primary);
}

/* Pane terminal container */
.pane-terminal {
  flex: 1;
  position: relative;
  min-height: 0;
  overflow: hidden;
}

.pane-terminal .xterm {
  height: 100%;
  padding: 4px;
}

/* Focused view: When scrollback is wider than viewport, CSS scale preserves layout. */
.terminal-container.scaled .xterm {
  height: auto;
  position: absolute;
  top: 0;
  left: 0;
}

/* Fullscreen transition animation */
@keyframes scale-to-fullscreen {
  from { transform: scale(1); opacity: 1; }
  to { transform: scale(1.02); opacity: 0.95; }
}

.grid-pane.transitioning {
  animation: scale-to-fullscreen 0.2s ease-out;
}

/* Status change glow effect */
@keyframes status-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(36, 114, 200, 0); }
  50% { box-shadow: 0 0 8px 2px rgba(36, 114, 200, 0.6); }
}

.grid-pane.status-changed {
  animation: status-glow 0.6s ease-out;
}

/* Grid Pagination Controls */
.grid-pagination {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem;
  background: var(--sidebar-bg);
  border-radius: 4px;
  margin-top: 8px;
}

.grid-pagination button {
  background: #3c3c3c;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  padding: 6px 12px;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 13px;
  transition: background-color 0.15s ease;
}

.grid-pagination button:hover:not(:disabled) {
  background: #4c4c4c;
}

.grid-pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-indicator {
  color: var(--text-secondary);
  font-size: 13px;
}

/* ======== Viewport Breadcrumb ======== */

.viewport-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: auto;
  padding-right: 16px;
}

.breadcrumb-path {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  background: #1a1a1a;
  border-radius: 4px;
  font-size: 13px;
}

.breadcrumb-item {
  color: var(--text-secondary);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 2px;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.breadcrumb-item:hover {
  color: var(--text-primary);
  background-color: #3c3c3c;
}

.breadcrumb-item.current {
  color: var(--text-primary);
  cursor: default;
  font-weight: 500;
}

.breadcrumb-item.current:hover {
  background-color: transparent;
}

.breadcrumb-separator {
  color: #4a4a4a;
  font-size: 12px;
}

/* ======== Quick Search (Ctrl+K) ======== */

.quick-search-dropdown {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%) translateY(-100%);
  width: 600px;
  max-width: 90vw;
  background: #2d2d2d;
  border: 1px solid #3c3c3c;
  border-top: none;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  z-index: 10000;
  opacity: 0;
  transition: transform 0.2s ease-out, opacity 0.2s ease-out;
}

.quick-search-dropdown.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.quick-search-input-container {
  padding: 12px;
  border-bottom: 1px solid #3c3c3c;
}

.quick-search-input {
  width: 100%;
  background: #1a1a1a;
  border: 1px solid #5c5c5c;
  border-radius: 4px;
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
}

.quick-search-input:focus {
  border-color: var(--accent);
}

.quick-search-input::placeholder {
  color: var(--text-secondary);
}

.quick-search-results {
  max-height: 320px;
  overflow-y: auto;
}

.quick-search-result {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  transition: background-color 0.1s ease;
}

.quick-search-result:hover,
.quick-search-result.selected {
  background: #3c3c3c;
}

.quick-search-result.selected {
  background: #094771;
}

.quick-search-icon {
  font-size: 14px;
  color: var(--text-secondary);
  width: 20px;
  text-align: center;
}

.quick-search-name {
  flex: 1;
  font-size: 14px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.quick-search-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.quick-search-status-dot.waiting_for_input {
  background-color: #2472c8;
}

.quick-search-status-dot.running {
  background-color: #0dbc79;
}

.quick-search-status-dot.idle {
  background-color: #6c6c6c;
}

.quick-search-status-dot.error {
  background-color: #f14c4c;
}

.quick-search-status-dot.unknown {
  background-color: #6c6c6c;
}

.quick-search-group {
  font-size: 12px;
  color: var(--text-secondary);
  padding: 2px 6px;
  background: #3c3c3c;
  border-radius: 3px;
  flex-shrink: 0;
}

.quick-search-empty {
  padding: 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
}

/* Search highlight animation */
.search-highlight {
  animation: search-highlight-pulse 1.5s ease-out;
}

@keyframes search-highlight-pulse {
  0% {
    background-color: rgba(78, 201, 176, 0.4);
  }
  100% {
    background-color: transparent;
  }
}