/* ─── Agent Tools CSS ─── */
/* Styles for terminal, file explorer, file viewer, dev server preview, and tool execution UI */

/* ─── Toolbar ─── */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 38px;
  padding: 0 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.toolbar-left,
.toolbar-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.toolbar-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.toolbar-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.toolbar-btn.active {
  background: var(--accent-code-bg);
  color: var(--accent-primary);
}

.toolbar-workspace {
  font-size: 11px;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

/* Agent badge in chat header */
.chat-agent-badge {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(110, 231, 160, 0.1);
  color: var(--success);
  font-weight: 500;
}

/* ─── Terminal Panel ─── */
.terminal-panel {
  position: relative;
  height: 280px;
  min-height: 150px;
  max-height: 600px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  z-index: 5;
}

.terminal-panel.hidden {
  display: none;
}

.terminal-resize-handle {
  position: absolute;
  top: -3px;
  left: 0;
  right: 0;
  height: 6px;
  cursor: row-resize;
  z-index: 10;
}

.terminal-resize-handle:hover {
  background: var(--accent-primary);
  opacity: 0.3;
}

.terminal-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.terminal-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
}

.terminal-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: none;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  transition: all var(--transition-fast);
}

.terminal-tab.active {
  background: var(--accent-code-bg);
  color: var(--accent-primary);
}

.terminal-tab-close {
  font-size: 14px;
  line-height: 1;
  opacity: 0.5;
  cursor: pointer;
}

.terminal-tab-close:hover {
  opacity: 1;
  color: var(--danger);
}

.terminal-new-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.terminal-new-tab:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.terminal-actions {
  display: flex;
  gap: 4px;
}

.terminal-body {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.terminal-session {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.terminal-session.hidden {
  display: none;
}

.terminal-output {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-all;
}

.terminal-line {
  display: block;
}

.terminal-line.command {
  color: var(--accent-primary);
}

.terminal-line.info {
  color: var(--text-tertiary);
  font-style: italic;
}

.terminal-line.error {
  color: var(--danger);
}

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-primary);
}

.terminal-prompt {
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

.terminal-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  outline: none;
}

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

.terminal-empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-tertiary);
  font-size: 13px;
}

/* ─── File Explorer Panel ─── */
.file-explorer-panel {
  width: 260px;
  min-width: 200px;
  max-width: 400px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.file-explorer-panel.hidden {
  display: none;
}

.file-explorer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.file-explorer-header h3 {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.file-explorer-actions {
  display: flex;
  gap: 2px;
}

.file-search-bar {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.file-search-bar.hidden {
  display: none;
}

.file-search-results {
  max-height: 200px;
  overflow-y: auto;
  margin-top: 8px;
}

.search-result-item {
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  transition: background var(--transition-fast);
}

.search-result-item:hover {
  background: var(--bg-hover);
}

.search-result-file {
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-size: 10px;
  display: block;
}

.search-result-content {
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.search-loading,
.search-no-results,
.search-error {
  padding: 8px;
  font-size: 11px;
  color: var(--text-tertiary);
  text-align: center;
}

.search-error {
  color: var(--danger);
}

/* File Tree */
.file-tree {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

.file-tree-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-primary);
  transition: background var(--transition-fast);
  white-space: nowrap;
}

.file-tree-item:hover {
  background: var(--bg-hover);
}

.file-tree-item.selected {
  background: var(--bg-active);
  color: var(--accent-primary);
}

.file-tree-icon {
  font-size: 14px;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

.file-tree-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-tree-loading,
.file-tree-error {
  padding: 20px;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 12px;
}

.file-tree-error {
  color: var(--danger);
}

/* Context Menu */
.file-context-menu {
  position: fixed;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 4px;
  min-width: 150px;
  box-shadow: var(--shadow-lg);
  z-index: 10000;
}

.context-menu-item {
  padding: 6px 12px;
  font-size: 12px;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.context-menu-item:hover {
  background: var(--bg-hover);
}

/* ─── File Viewer Panel ─── */
.file-viewer-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-primary);
  border-left: 1px solid var(--border-primary);
}

.file-viewer-panel.hidden {
  display: none;
}

.file-viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  height: 36px;
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
}

.file-viewer-tabs {
  display: flex;
  gap: 2px;
  align-items: center;
}

.file-viewer-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-viewer-tab.active {
  background: var(--accent-code-bg);
  color: var(--accent-primary);
}

.file-viewer-tab .tab-close {
  font-size: 14px;
  opacity: 0.5;
  cursor: pointer;
  line-height: 1;
}

.file-viewer-tab .tab-close:hover {
  opacity: 1;
  color: var(--danger);
}

.file-viewer-tab .tab-modified {
  color: var(--warning);
  font-size: 10px;
}

.file-viewer-tab .tab-modified.hidden {
  display: none;
}

.file-viewer-actions {
  display: flex;
  gap: 4px;
}

.file-viewer-body {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.file-editor-wrapper {
  display: flex;
  height: 100%;
  overflow: hidden;
}

.line-numbers {
  padding: 12px 8px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-tertiary);
  text-align: right;
  user-select: none;
  overflow: hidden;
  min-width: 40px;
}

.line-numbers span {
  display: block;
}

.file-editor {
  flex: 1;
  padding: 12px;
  border: none;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  resize: none;
  outline: none;
  overflow: auto;
  tab-size: 2;
  white-space: pre;
}

.file-viewer-empty,
.file-viewer-error,
.file-preview-binary {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-tertiary);
  font-size: 13px;
  gap: 8px;
}

.file-viewer-error {
  color: var(--danger);
}

.file-viewer-statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 12px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  font-size: 11px;
  color: var(--text-tertiary);
}

/* ─── Dev Server Preview Panel ─── */
.preview-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-primary);
  border-left: 1px solid var(--border-primary);
}

.preview-panel.hidden {
  display: none;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.preview-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.preview-header-left h3 {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.preview-url-bar {
  display: flex;
  align-items: center;
  gap: 4px;
}

.preview-url-input {
  width: 200px;
  padding: 4px 8px !important;
  font-size: 11px !important;
  font-family: var(--font-mono);
}

.preview-actions {
  display: flex;
  gap: 4px;
}

.preview-body {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.preview-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: white;
}

.preview-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 12px;
  color: var(--text-tertiary);
  font-size: 13px;
}

.preview-servers-bar {
  display: flex;
  gap: 4px;
  padding: 6px 12px;
  border-top: 1px solid var(--border-subtle);
  overflow-x: auto;
}

.server-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 11px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.server-indicator:hover {
  background: var(--bg-hover);
}

.server-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warning);
}

.server-indicator.running .server-status-dot {
  background: var(--success);
}

.server-indicator.stopped .server-status-dot {
  background: var(--danger);
}

.server-info {
  color: var(--text-secondary);
}

.server-stop-btn {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0 2px;
}

/* ─── Tool Execution UI ─── */
.message-tools {
  margin-bottom: 8px;
}

.tool-execution {
  margin: 8px 0;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-secondary);
}

.tool-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-subtle);
}

.tool-icon {
  font-size: 14px;
}

.tool-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}

.tool-status {
  margin-left: auto;
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.tool-status.running {
  color: var(--warning);
}

.tool-status.success {
  color: var(--success);
}

.tool-status.error {
  color: var(--danger);
}

.tool-spinner {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 2px solid var(--warning);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.tool-body {
  padding: 8px 12px;
  font-size: 12px;
}

.tool-input-detail {
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.tool-input-detail code {
  background: var(--bg-code);
  padding: 1px 4px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-code);
}

.tool-command {
  display: block;
  padding: 6px 10px;
  background: var(--bg-code);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-primary);
}

.tool-cwd {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-left: 8px;
}

.tool-code-preview {
  margin-top: 6px;
}

.tool-code-preview summary {
  cursor: pointer;
  font-size: 11px;
  color: var(--text-tertiary);
  padding: 2px 0;
}

.tool-code-preview summary:hover {
  color: var(--text-secondary);
}

.tool-code-preview pre {
  margin-top: 4px;
  padding: 8px;
  background: var(--bg-code);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: 11px;
  line-height: 1.5;
  max-height: 200px;
  overflow-y: auto;
}

.tool-code-preview pre code {
  background: transparent;
  padding: 0;
  font-size: 11px;
}

.tool-diff {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.diff-old pre {
  border-left: 3px solid var(--danger);
  background: rgba(255, 107, 129, 0.05);
}

.diff-new pre {
  border-left: 3px solid var(--success);
  background: rgba(110, 231, 160, 0.05);
}

.diff-label {
  font-size: 10px;
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

.diff-old .diff-label { color: var(--danger); }
.diff-new .diff-label { color: var(--success); }

.tool-command-output {
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-all;
}

.tool-result-success {
  color: var(--success);
  font-size: 11px;
  padding: 4px 0;
}

.tool-result-error {
  color: var(--danger);
  font-size: 11px;
  padding: 4px 0;
  white-space: pre-wrap;
}

.tool-result-info {
  color: var(--text-tertiary);
  font-size: 11px;
  padding: 4px 0;
}

.tool-file-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px 0;
}

.tool-file-item {
  font-size: 11px;
  padding: 2px 6px;
  background: var(--bg-code);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.tool-file-item.directory {
  color: var(--accent-primary);
}

.tool-file-more {
  font-size: 10px;
  color: var(--text-tertiary);
  padding: 2px 6px;
}

.tool-search-results {
  max-height: 200px;
  overflow-y: auto;
}

.tool-search-match {
  padding: 2px 0;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tool-search-match .match-file {
  color: var(--accent-primary);
  margin-right: 8px;
}

/* ─── Welcome Features ─── */
.welcome-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
  text-align: left;
}

.welcome-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.feature-icon {
  font-size: 16px;
}

/* ─── Form Checkbox ─── */
.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px !important;
  color: var(--text-primary) !important;
}

.form-checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-primary);
  cursor: pointer;
}

.form-help {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 2px;
  margin-left: 24px;
}

/* ─── Brand Version ─── */
.brand-version {
  font-size: 10px;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: 1px 5px;
  border-radius: var(--radius-full);
}

/* ─── Layout Adjustments ─── */
.main-content {
  display: flex;
  flex-direction: column;
}

.content-area {
  display: flex;
  flex: 1;
  overflow: hidden;
}