@font-face {
  font-family: "JetBrainsMono Nerd Font";
  src: url("https://cdn.jsdelivr.net/gh/ryanoasis/nerd-fonts@v3.2.1/patched-fonts/JetBrainsMono/Ligatures/Regular/JetBrainsMonoNerdFont-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "JetBrainsMono Nerd Font";
  src: url("https://cdn.jsdelivr.net/gh/ryanoasis/nerd-fonts@v3.2.1/patched-fonts/JetBrainsMono/Ligatures/Bold/JetBrainsMonoNerdFont-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg-root: #0d1117;
  --bg-pane: #161b22;
  --bg-header: #1c2128;
  --bg-hover: #21262d;
  --bg-active: #1f6feb33;
  --border-color: #30363d;
  --text-main: #e6edf3;
  --text-muted: #8b949e;
  --accent-blue: #58a6ff;
  --accent-green: #3fb950;
  --accent-amber: #d29922;
  --accent-red: #f85149;
  --font-mono: "JetBrainsMono Nerd Font", "JetBrains Mono", "D2Coding", "Fira Code", "Cascadia Code", Consolas, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji", monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
}

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

html, body {
  width: 100%;
  height: 100%;
  background: var(--bg-root);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 13px;
  overflow: hidden;
}

/* Topbar */
.topbar {
  height: 40px;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  user-select: none;
}

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

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent-amber);
  box-shadow: 0 0 6px var(--accent-amber);
}

.status-dot.connected {
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
}

.status-dot.disconnected {
  background: var(--accent-red);
  box-shadow: 0 0 6px var(--accent-red);
}

.brand-title {
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text-main);
}

.workspace-badge {
  background: #21262d;
  border: 1px solid var(--border-color);
  color: var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
}

.workspace-badge-btn {
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
}

.workspace-badge-btn:hover {
  background: #30363d;
  border-color: var(--accent-blue);
}

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

.topbar-hint {
  color: var(--text-muted);
  font-size: 12px;
}

.topbar-hint code {
  background: #21262d;
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--accent-amber);
}

.btn-secondary, .btn-mini {
  background: #21262d;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
}

.btn-mini {
  padding: 2px 8px;
  font-size: 11px;
}

.btn-secondary:hover, .btn-mini:hover {
  background: #30363d;
  border-color: var(--text-muted);
}

/* Resizable Workspace Layout */
.workspace-grid {
  --left-width: 260px;
  --right-width: 440px;
  display: grid;
  grid-template-columns: var(--left-width) 5px 1fr 5px var(--right-width);
  height: calc(100vh - 40px);
  width: 100vw;
  background: var(--bg-root);
}

.pane {
  background: var(--bg-pane);
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.pane-center-col {
  display: flex;
  flex-direction: column;
  background: var(--bg-root);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.pane-terminal {
  flex: 1 1 0;
  min-height: 32px;
  border-bottom: 1px solid var(--border-color);
}

.pane-terminal.active-target > .pane-header {
  background: #162234;
  border-bottom-color: var(--accent-blue);
}

.pane-terminal.minimized {
  flex: 0 0 32px !important;
  height: 32px !important;
}

.pane-terminal.minimized .terminal-mount {
  display: none;
}

/* Drag Resizer Splitters */
.splitter {
  background: var(--border-color);
  transition: background 0.12s ease;
  z-index: 20;
  user-select: none;
}

.splitter:hover, .splitter.dragging {
  background: var(--accent-blue);
}

.splitter-v {
  cursor: col-resize;
  width: 5px;
}

.splitter-h {
  cursor: row-resize;
  height: 5px;
  flex: 0 0 5px;
}

.btn-new-term {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-danger-mini {
  background: #3d1c20;
  color: var(--accent-red);
  border: 1px solid #6e282e;
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 11px;
  cursor: pointer;
}

.btn-danger-mini:hover {
  background: var(--accent-red);
  color: #0d1117;
}

.pane-controls {
  display: flex;
  align-items: center;
  gap: 5px;
}

.pane-header {
  height: 32px;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  flex-shrink: 0;
  user-select: none;
}

.pane-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.pane-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pane-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.pane-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.agent-indicator {
  background: var(--accent-blue);
}

.shell-indicator {
  background: var(--accent-green);
}

.badge-count {
  font-size: 11px;
  color: var(--accent-amber);
  font-family: var(--font-mono);
}

/* Explorer Tree */
.tree-filter-box {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-color);
}

.tree-filter-input {
  width: 100%;
  background: var(--bg-root);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 5px 8px;
  border-radius: 4px;
  font-size: 12px;
  outline: none;
}

.tree-filter-input:focus {
  border-color: var(--accent-blue);
}

.tree-container {
  flex: 1;
  overflow-y: auto;
  padding: 6px 4px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.tree-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 6px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-main);
  gap: 6px;
}

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

.tree-row.active {
  background: var(--bg-active);
  color: var(--accent-blue);
}

.tree-label-group {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  flex: 1;
}

.tree-icon {
  color: var(--text-muted);
  font-size: 11px;
  width: 14px;
  text-align: center;
  flex-shrink: 0;
}

.tree-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tree-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.mod-badge {
  background: #d2992233;
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
  font-size: 10px;
  font-weight: 700;
  padding: 0 4px;
  border-radius: 3px;
}

.btn-inject {
  opacity: 0;
  background: #1f6feb22;
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue);
  border-radius: 3px;
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 0 5px;
  cursor: pointer;
}

.tree-row:hover .btn-inject {
  opacity: 1;
}

.btn-inject:hover {
  background: var(--accent-blue);
  color: #0d1117;
}

/* xterm.js & Native ANSI PTY Terminal Mount */
.terminal-mount {
  flex: 1;
  background: #090d12;
  color: #e6edf3;
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 4px 6px;
  overflow: hidden;
  outline: none;
  position: relative;
}

.terminal-mount .xterm {
  height: 100%;
  width: 100%;
}

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

/* Right Viewer Pane */
.viewer-meta {
  padding: 5px 10px;
  background: #12161c;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  flex-shrink: 0;
}

.live-pill {
  background: #3fb95022;
  color: var(--accent-green);
  border: 1px solid var(--accent-green);
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 10px;
  font-weight: 700;
}

.viewer-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
}

.code-view {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-main);
}

/* Markdown Rendered Styling */
.md-view h1, .md-view h2, .md-view h3 {
  margin-top: 14px;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border-color);
  color: #ffffff;
}

.md-view p {
  margin-bottom: 10px;
  line-height: 1.6;
}

.md-view ul, .md-view ol {
  margin: 6px 0 12px 20px;
  line-height: 1.6;
}

.md-view code {
  font-family: var(--font-mono);
  background: #21262d;
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 12px;
  color: #ff7b72;
}

.md-view pre {
  background: #0d1117;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 12px;
  overflow-x: auto;
  margin-bottom: 12px;
}

.md-view pre code {
  background: transparent;
  padding: 0;
  color: var(--text-main);
}

.md-view blockquote {
  border-left: 3px solid var(--accent-blue);
  padding-left: 10px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

/* Login Modal */
.login-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(9, 13, 18, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.login-backdrop[hidden] {
  display: none !important;
}

.login-card {
  background: var(--bg-pane);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  width: 380px;
  max-width: 94vw;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
}

.login-step-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.step-pill {
  background: #1f6feb33;
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
}

.login-step {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.login-step[hidden] {
  display: none !important;
}

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

.vkbd-display {
  flex: 1;
  letter-spacing: 4px;
  text-align: center;
  font-weight: 700;
  cursor: not-allowed;
  user-select: none;
}

.vkbd-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  user-select: none;
}

.vkbd-key {
  background: #21262d;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  padding: 12px 0;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.1s ease, transform 0.06s ease, border-color 0.1s ease;
}

.vkbd-key:hover {
  background: #30363d;
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.vkbd-key:active {
  transform: scale(0.96);
  background: var(--accent-blue);
  color: #0d1117;
}

.vkbd-key-fn {
  font-size: 12px;
  color: var(--accent-amber);
}

.vkbd-actions {
  display: flex;
  gap: 8px;
}

.vkbd-submit {
  flex: 1;
}

.login-title {
  font-size: 16px;
  color: var(--text-main);
}

.login-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

.login-input {
  background: var(--bg-root);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  outline: none;
}

.login-input:focus {
  border-color: var(--accent-blue);
}

.login-error {
  color: var(--accent-red);
  font-size: 12px;
}

.btn-primary {
  background: var(--accent-blue);
  color: #0d1117;
  border: none;
  border-radius: 4px;
  padding: 8px 12px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}

.btn-primary:hover {
  opacity: 0.92;
}

/* Workspace Root Directory Picker */
.picker-card {
  background: var(--bg-pane);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  width: 520px;
  max-width: 92vw;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.65);
}

.picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.picker-path-bar {
  display: flex;
  gap: 8px;
}

.picker-path-input {
  flex: 1;
}

.picker-dir-list {
  background: var(--bg-root);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  height: 250px;
  overflow-y: auto;
  padding: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.picker-dir-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-main);
}

.picker-dir-item:hover {
  background: var(--bg-hover);
  color: var(--accent-blue);
}

.picker-checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
}

.picker-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}

/* Toast notifications */
.toast-container {
  position: fixed;
  bottom: 14px;
  right: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 1000;
}

.toast {
  background: #1c2128;
  border: 1px solid var(--accent-blue);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}