/* ═══════════════════════════════════════════════════════════
   ZIM — AGENT TOOLS CSS  (v2)
   Terminal, File Explorer, File Viewer, Dev Server Preview,
   Tool Execution UI
════════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════════════
   TERMINAL PANEL
════════════════════════════════════════════════════════════ */
.terminal-panel {
  position: relative;
  height: 260px;
  min-height: 140px;
  max-height: 560px;
  background: var(--bg-sidebar);
  border-top: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  z-index: 5;
  flex-shrink: 0;
}
.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: 0.25; }

.terminal-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 10px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
  background: var(--bg-secondary);
}

.terminal-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
}
.terminal-tab {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.terminal-tab.active { background: var(--accent-code-bg); color: var(--accent-primary); }
.terminal-tab-close {
  font-size: 13px;
  line-height: 1;
  opacity: 0.4;
  cursor: pointer;
}
.terminal-tab-close:hover { opacity: 1; color: var(--danger); }
.terminal-new-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  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: 3px; }

.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: 1.55;
  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: 6px 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;
  flex-shrink: 0;
}
.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: 240px;
  min-width: 180px;
  max-width: 380px;
  background: var(--bg-sidebar);
  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: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.file-explorer-header h3 {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.file-explorer-actions { display: flex; gap: 2px; }

.file-search-bar {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.file-search-bar.hidden { display: none; }
.file-search-results { max-height: 180px; overflow-y: auto; margin-top: 6px; }
.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: 5px;
  padding: 3px 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: 13px; width: 16px; 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-panel);
  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: 34px;
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
  flex-shrink: 0;
  background: var(--bg-secondary);
}
.file-viewer-tabs { display: flex; gap: 2px; align-items: center; }
.file-viewer-tab {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  background: transparent;
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.file-viewer-tab.active { background: var(--accent-code-bg); color: var(--accent-primary); }
.file-viewer-tab .tab-close { font-size: 13px; opacity: 0.4; 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: 3px; }

.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: 38px;
}
.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: 3px 12px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  font-size: 10px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   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: 6px 12px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  flex-shrink: 0;
}
.preview-header-left { display: flex; align-items: center; gap: 10px; }
.preview-header-left h3 { font-size: 11px; 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: 3px; }
.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: 5px 12px;
  border-top: 1px solid var(--border-subtle);
  overflow-x: auto;
  flex-shrink: 0;
  background: var(--bg-secondary);
}
.server-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
  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: 5px; height: 5px; 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: 13px; 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: 7px 12px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-subtle);
}
.tool-icon { font-size: 13px; }
.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: 5px 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; }

/* ─── Agent badge in chat header ─────────────────────────── */
.chat-agent-badge { display: flex; align-items: center; gap: 4px; }

/* ─── Form Checkbox (legacy compat) ─────────────────────── */
.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
}
.form-checkbox-label input[type="checkbox"] {
  width: 15px; height: 15px;
  accent-color: var(--accent-primary);
  cursor: pointer;
}
.form-help { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; margin-left: 23px; }