styles.css

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Manrope:wght@200;300;400;500;600;700;800&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
  /* Colors - Base */
  --bg-app: #0b0e11;
  --bg-surface: #15191e;
  --bg-surface-elevated: #1e2329;

  /* Terminal */
  --terminal-bg: #0b0e11;
  --terminal-fg: #e0e0e0;
  --terminal-cursor: #e0e0e0;
  --terminal-selection: #264f78;

  /* Colors - Accents */
  --accent-primary: #14f195; /* Mint/Teal */
  --accent-secondary: #22d3ee; /* Cyan */
  --accent-warning: #f59e0b; /* Amber */
  --accent-danger: #ff453a; /* Red */

  /* Colors - Agent Identity */
  --color-claude: #3b82f6;
  --color-codex: #22c55e;
  --color-gemini: #f59e0b;
  --color-gpt: #10b981;
  --color-user: #94a3b8;

  /* Text */
  --text-main: #e3e6eb;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Borders & Shadows */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.4);

  /* Spacing & Radius */
  --space-unit: 4px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --sidebar-width: 260px;
}

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

html {
  background: var(--bg-app);
}

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-app);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ═══════════════════════════════════════════════════════════
   App Layout - Sidebar + Main + Right Panel
   ═══════════════════════════════════════════════════════════ */

.app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════
   Sidebar
   ═══════════════════════════════════════════════════════════ */

.sidebar {
  flex: 0 0 var(--sidebar-width);
  width: var(--sidebar-width);
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

/* macOS hidden title bar — drag region and traffic light safe area */
body.platform-darwin .sidebar-header {
  padding-top: 42px;
  -webkit-app-region: drag;
}

body.platform-darwin .sidebar-header button,
body.platform-darwin .sidebar-header input,
body.platform-darwin .sidebar-header textarea,
body.platform-darwin .sidebar-header select,
body.platform-darwin .sidebar-header a {
  -webkit-app-region: no-drag;
}

.sidebar-workspace-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-workspace-path {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 4px;
}

.sidebar-new-session {
  padding: 12px 16px;
}

.new-session-btn {
  width: 100%;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 13px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.new-session-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
}

.sidebar-section-label {
  padding: 8px 16px 6px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.session-list-container {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.session-list {
  padding: 4px 0;
}

.session-list-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
}

.session-group-label {
  padding: 8px 16px 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-family: 'Space Grotesk', sans-serif;
}

.session-item {
  padding: 8px 16px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-radius: var(--radius-sm);
  margin: 0 8px;
}

.session-item:hover {
  background: var(--bg-surface-elevated);
}

.session-item.active {
  background: var(--bg-surface-elevated);
  border-left: 2px solid var(--accent-primary);
}

.session-item-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-item:hover .session-item-title,
.session-item.active .session-item-title {
  color: var(--text-main);
}

.session-item-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-dim);
}

.session-item-status {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
}

.session-item-status.active {
  background: var(--accent-primary);
  box-shadow: 0 0 6px var(--accent-primary);
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sidebar-footer-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  font-family: 'IBM Plex Mono', monospace;
  transition: color var(--transition-fast);
  padding: 4px 0;
  text-align: left;
}

.sidebar-footer-btn:hover {
  color: var(--accent-primary);
}

/* ═══════════════════════════════════════════════════════════
   Main Area
   ═══════════════════════════════════════════════════════════ */

.main-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.drag-bar {
  display: none;
}

body.platform-darwin .drag-bar {
  display: block;
  height: 42px;
  flex-shrink: 0;
  -webkit-app-region: drag;
}

/* Welcome View */
.welcome-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.welcome-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
}

.welcome-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 12px rgba(20, 241, 149, 0.3));
}

.welcome-title {
  font-size: 2em;
  color: var(--text-main);
  text-align: center;
  margin-bottom: 8px;
  font-weight: 500;
}

.welcome-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 1.1em;
}

.welcome-config-info {
  padding: 16px 20px;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  max-width: 400px;
  width: 100%;
}

#config-details {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}

/* Session View */
.session-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Prompt Input Bar (shared by welcome and session views) */
.prompt-input-bar {
  padding: 12px 16px;
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.prompt-textarea {
  flex: 1;
  min-height: 40px;
  max-height: 150px;
  padding: 10px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  color: var(--text-main);
  font-size: 14px;
  font-family: 'Manrope', sans-serif;
  resize: vertical;
  transition: all var(--transition-fast);
}

.prompt-textarea:focus {
  outline: none;
  border-color: var(--border-strong);
}

.prompt-send-btn {
  width: 36px;
  height: 36px;
  min-width: 36px;
  padding: 0;
  background: var(--text-dim);
  color: var(--bg-app);
  border: none;
  border-radius: 50%;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.prompt-send-btn:hover {
  background: var(--text-main);
}

.prompt-send-btn:active {
  transform: scale(0.95);
}

.prompt-send-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.prompt-send-btn.loading {
  opacity: 0.6;
  animation: send-pulse 1.2s ease-in-out infinite;
}

@keyframes send-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* ═══════════════════════════════════════════════════════════
   Right Panel
   ═══════════════════════════════════════════════════════════ */

.right-panel {
  flex: 0 0 45%;
  display: flex;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  overflow: hidden;
  position: relative;
}

body.platform-darwin .right-panel {
  padding-top: 42px; /* Safe area for macOS hidden title bar */
}

.right-panel-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════
   Buttons
   ═══════════════════════════════════════════════════════════ */

.primary-button {
  width: 100%;
  padding: 12px;
  background: var(--text-main);
  color: var(--bg-app);
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.primary-button:hover {
  background: var(--accent-primary);
}

.primary-button:active {
  transform: translateY(0);
}

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

.secondary-button {
  padding: 8px 16px;
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.secondary-button:hover {
  color: var(--text-main);
  border-color: var(--border-strong);
}

.small-button {
  padding: 5px 10px;
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 11px;
  font-weight: 500;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.small-button:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.small-button.primary {
  background: var(--accent-primary);
  color: var(--bg-app);
  border-color: var(--accent-primary);
}

.small-button.primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 8px rgba(20, 241, 149, 0.3);
}

/* ═══════════════════════════════════════════════════════════
   Panel Header
   ═══════════════════════════════════════════════════════════ */

.panel-header {
  background: var(--bg-surface);
  padding: 10px 20px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 44px;
}

.panel-header h3 {
  font-size: 0.85em;
  color: var(--text-muted);
  font-weight: 500;
  font-family: 'Space Grotesk', sans-serif;
}

.panel-header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ═══════════════════════════════════════════════════════════
   Main Tabs (Right Panel: Terminal / Plan / Diff)
   ═══════════════════════════════════════════════════════════ */

.main-tabs {
  display: flex;
  background: var(--bg-app);
  padding: 0;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.main-tab {
  flex: 1;
  padding: 10px 16px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.main-tab:hover {
  color: var(--text-main);
}

.main-tab.active {
  color: var(--text-main);
  border-bottom-color: var(--accent-primary);
}

/* Tab Content Areas */
.tab-content {
  display: none;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
}

.tab-content.active {
  display: flex;
}

/* ═══════════════════════════════════════════════════════════
   Agent Tabs & Terminal
   ═══════════════════════════════════════════════════════════ */

.tabs {
  display: flex;
  background: var(--bg-app);
  padding: 8px 12px 0 12px;
  gap: 4px;
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
}

.tab {
  padding: 8px 16px;
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  transition: all var(--transition-fast);
  white-space: nowrap;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 13px;
}

.tab:hover {
  color: var(--text-main);
  background: var(--bg-surface-elevated);
}

.tab.active {
  background: var(--bg-surface);
  color: var(--accent-primary);
  border: 1px solid var(--border-subtle);
  border-bottom-color: var(--bg-surface);
  margin-bottom: -1px;
}

.agent-outputs {
  flex: 1;
  overflow: hidden;
  position: relative;
  background: var(--bg-surface);
}

.agent-output {
  display: none;
  height: 100%;
  overflow-y: auto;
  padding: 16px;
  background: var(--bg-surface);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  position: relative;
}

.agent-output.active {
  display: block;
}

.agent-output pre {
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--text-main);
}

.terminal-container {
  width: 100%;
  height: calc(100% - 30px);
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-sm);
  background: var(--terminal-bg);
}

.agent-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  margin-bottom: 8px;
  font-family: 'Space Grotesk', sans-serif;
}

.agent-status::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.agent-status.running {
  background: rgba(20, 241, 149, 0.1);
  color: var(--accent-primary);
}

.agent-status.running::before {
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
  animation: pulse 2s infinite;
}

.agent-status.restarting {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
}

.agent-status.restarting::before {
  background: #f59e0b;
  box-shadow: 0 0 8px #f59e0b;
  animation: pulse 1s infinite;
}

.agent-status.stopped {
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
}

.agent-status.stopped::before {
  background: var(--text-dim);
}

.agent-status.error {
  background: rgba(255, 69, 58, 0.1);
  color: var(--accent-danger);
}

.agent-status.error::before {
  background: var(--accent-danger);
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Input Lock Toggle */
.input-lock-toggle {
  position: absolute;
  bottom: 8px;
  right: 8px;
  padding: 4px 10px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  color: var(--text-dim);
  font-size: 10px;
  font-weight: 500;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0.7;
}

.input-lock-toggle:hover {
  opacity: 1;
}

.input-lock-toggle.unlocked {
  background: rgba(20, 241, 149, 0.1);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.input-lock-toggle.unlocked:hover {
  background: rgba(20, 241, 149, 0.2);
}

/* ═══════════════════════════════════════════════════════════
   Chat
   ═══════════════════════════════════════════════════════════ */

.chat-viewer {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: var(--bg-app);
  display: flex;
  flex-direction: column;
  gap: 8px;
  scroll-behavior: smooth;
}

.chat-new-messages {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  z-index: 3;
}

.chat-new-messages.visible {
  display: block;
}

.chat-new-messages .small-button {
  background: var(--accent-primary);
  color: #0b0d0f;
  box-shadow: var(--shadow-sm);
}

.chat-message {
  display: flex;
  max-width: 90%;
  animation: message-in var(--transition-base);
}

@keyframes message-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-message-left {
  align-self: flex-start;
}

.chat-message-right {
  align-self: flex-end;
}

.chat-bubble {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 10px 14px;
  border-left: 2px solid var(--agent-color, var(--accent-primary));
}

.chat-message-right .chat-bubble {
  border-left: none;
  border-right: 2px solid var(--agent-color, var(--color-user));
  background: var(--bg-surface);
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  gap: 16px;
}

.chat-agent {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 12px;
}

.chat-time {
  color: var(--text-dim);
  font-size: 10px;
  font-family: 'IBM Plex Mono', monospace;
}

.chat-content {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-main);
}

.chat-empty {
  color: var(--text-dim);
  text-align: center;
  padding: 40px;
  font-style: italic;
  font-size: 13px;
}

/* ═══════════════════════════════════════════════════════════
   Markdown content
   ═══════════════════════════════════════════════════════════ */

.markdown-content {
  color: var(--text-main);
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  color: var(--accent-primary);
  margin-top: 1.2em;
  margin-bottom: 0.6em;
}

.markdown-content h1 { font-size: 1.5em; border-bottom: 1px solid var(--border-subtle); padding-bottom: 0.3em; }
.markdown-content h2 { font-size: 1.3em; border-bottom: 1px solid var(--border-subtle); padding-bottom: 0.3em; }
.markdown-content h3 { font-size: 1.1em; }

.markdown-content p { margin: 0.6em 0; }

.markdown-content code {
  background: var(--bg-surface-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9em;
  color: var(--accent-secondary);
  border: 1px solid var(--border-subtle);
}

.markdown-content pre {
  background: var(--bg-app);
  padding: 12px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 1em 0;
  border: 1px solid var(--border-subtle);
}

.markdown-content pre code {
  background: none;
  padding: 0;
  font-size: 12px;
  color: var(--text-main);
  border: none;
}

.markdown-content ul,
.markdown-content ol {
  margin: 0.6em 0;
  padding-left: 1.5em;
}

.markdown-content blockquote {
  border-left: 3px solid var(--accent-primary);
  padding-left: 12px;
  margin: 1em 0;
  color: var(--text-muted);
  font-style: italic;
  background: rgba(20, 241, 149, 0.05);
  padding: 8px 12px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.markdown-content a {
  color: var(--accent-secondary);
  text-decoration: none;
}

.markdown-content a:hover { text-decoration: underline; }

/* ═══════════════════════════════════════════════════════════
   Plan Section
   ═══════════════════════════════════════════════════════════ */

.plan-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-surface);
}

.plan-viewer {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  font-size: 13px;
  line-height: 1.6;
  background: var(--bg-app);
}

.plan-viewer em {
  color: var(--text-dim);
}

.plan-actions {
  padding: 16px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
}

.plan-actions .primary-button.large {
  width: 100%;
  padding: 16px 24px;
  font-size: 15px;
}

/* ═══════════════════════════════════════════════════════════
   Diff Section
   ═══════════════════════════════════════════════════════════ */

.diff-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-surface);
}

.diff-layout {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.diff-file-list {
  flex: 0 0 200px;
  min-width: 150px;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface-elevated);
  border-right: 1px solid var(--border-subtle);
  overflow: hidden;
}

.file-list-header {
  padding: 10px 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.file-list-items {
  flex: 1;
  overflow-y: auto;
  list-style: none;
  margin: 0;
  padding: 4px 0;
}

.file-list-item {
  padding: 8px 12px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  border-left: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.file-list-item:hover {
  background: var(--bg-app);
  color: var(--text-main);
}

.file-list-item.active {
  background: var(--bg-app);
  color: var(--accent-primary);
  border-left-color: var(--accent-primary);
}

.file-list-item.all-files {
  font-weight: 600;
  color: var(--text-main);
}

.file-list-item .file-status {
  font-size: 10px;
  font-weight: 700;
}

.file-list-item .file-status.added { color: #22c55e; }
.file-list-item .file-status.modified { color: var(--accent-secondary); }
.file-list-item .file-status.deleted { color: #ef4444; }

.diff-content-pane {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--bg-app);
}

.diff-resize {
  flex-shrink: 0;
}

.diff-badge {
  display: inline-block;
  background: var(--accent-danger);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  margin-left: 6px;
  min-width: 18px;
  text-align: center;
}

.diff-stats {
  display: flex;
  gap: 16px;
  padding: 8px 12px;
  background: var(--bg-app);
  border-radius: var(--radius-md);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
}

.diff-stat-files { color: var(--text-muted); }
.diff-stat-insertions { color: #22c55e; font-weight: 600; }
.diff-stat-deletions { color: #ef4444; font-weight: 600; }
.diff-stat-none { color: var(--text-dim); font-style: italic; }

.diff-content {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.diff-output {
  margin: 0;
  padding: 12px;
  background: var(--bg-app);
  border-radius: var(--radius-md);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  line-height: 1.2;
  white-space: pre;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
}

.diff-added { color: #22c55e; background: rgba(34, 197, 94, 0.08); display: block; padding: 0 4px; }
.diff-removed { color: #ef4444; background: rgba(239, 68, 68, 0.08); display: block; padding: 0 4px; }
.diff-context { display: block; padding: 0 4px; }
.diff-file-header { color: var(--accent-secondary); font-weight: 600; display: block; }
.diff-hunk-header { color: var(--accent-primary); background: rgba(20, 241, 149, 0.1); display: block; }

.diff-file-separator {
  color: var(--text-dim);
  font-weight: 600;
  display: block;
  margin-top: 16px;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

.diff-file-separator:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.diff-empty,
.diff-no-repo,
.diff-error {
  color: var(--text-dim);
  display: block;
  padding: 24px;
  text-align: center;
}

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

.diff-untracked { margin-top: 8px; }

.diff-untracked-header {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-warning);
  margin-bottom: 8px;
}

/* ═══════════════════════════════════════════════════════════
   Scrollbar
   ═══════════════════════════════════════════════════════════ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-app);
}

::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-dim);
}

/* ═══════════════════════════════════════════════════════════
   Resize Handles
   ═══════════════════════════════════════════════════════════ */

.resize-handle {
  flex-shrink: 0;
  background: transparent;
  position: relative;
  z-index: 10;
  transition: background var(--transition-fast);
}

.resize-handle::after {
  content: '';
  position: absolute;
  background: var(--border-subtle);
  transition: background var(--transition-fast);
}

.resize-handle:hover::after,
.resize-handle.dragging::after {
  background: var(--accent-primary);
}

.resize-handle-h {
  width: 8px;
  cursor: col-resize;
  margin: 0 -3px;
}

.resize-handle-h::after {
  left: 3px;
  top: 0;
  bottom: 0;
  width: 2px;
}

body.resizing {
  user-select: none;
  -webkit-user-select: none;
}

body.resizing-h {
  cursor: col-resize;
}

body.resizing iframe,
body.resizing .terminal-container {
  pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════
   Modal
   ═══════════════════════════════════════════════════════════ */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: fade-in var(--transition-fast);
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  min-width: 380px;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-subtle);
  animation: scale-in var(--transition-fast);
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-content h3 {
  margin-bottom: 20px;
  color: var(--accent-primary);
  font-size: 1.1em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.modal-description {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 24px;
}

.agent-selection {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.agent-selection label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--bg-app);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.agent-selection label:hover {
  border-color: var(--accent-primary);
  background: var(--bg-surface-elevated);
}

.agent-selection input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-primary);
}

.agent-selection input[type="radio"]:checked + .agent-name {
  color: var(--accent-primary);
  font-weight: 700;
}

.agent-name {
  font-size: 14px;
  color: var(--text-main);
  font-family: 'Space Grotesk', sans-serif;
}

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

.modal-actions .small-button {
  padding: 10px 20px;
  font-size: 12px;
}

/* ═══════════════════════════════════════════════════════════
   Header icon (used in welcome)
   ═══════════════════════════════════════════════════════════ */

.header-icon {
  height: 1.2em;
  width: auto;
  vertical-align: middle;
  margin-right: 0.3em;
  filter: drop-shadow(0 0 8px rgba(20, 241, 149, 0.3));
}

textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  color: var(--text-main);
  font-size: 14px;
  font-family: 'Manrope', sans-serif;
  resize: vertical;
  transition: all var(--transition-fast);
}

textarea:focus {
  outline: none;
  border-color: var(--border-strong);
}