:root {
  --bg-topbar: #323233;
  --bg-sidebar: #252526;
  --bg-editor: #1e1e1e;
  --bg-tabbar: #2d2d2d;
  --bg-tab-active: #1e1e1e;
  --bg-panel: #252526;
  --bg-console: #181818;
  --bg-hover: #2a2d2e;
  --bg-selected: #04395e;
  --border-color: #3c3c3c;
  --text-main: #cccccc;
  --text-dim: #8a8a8a;
  --text-bright: #ffffff;
  --accent: #0e639c;
  --accent-hover: #1177bb;
  --statusbar-bg: #007acc;
  --danger: #f14c4c;
  --success: #4ec9b0;
  --warning: #cca700;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: -apple-system, "Segoe UI", Tahoma, Arial, sans-serif;
  font-size: 13px;
  background: var(--bg-editor);
  color: var(--text-main);
}

button {
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
}

/* ---------- Login ---------- */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: radial-gradient(circle at top, #1e1e1e, #111111);
}

.login-card {
  width: 340px;
  padding: 32px;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.login-title {
  margin: 0 0 4px;
  font-size: 22px;
  color: var(--text-bright);
}

.login-subtitle {
  margin: 0 0 20px;
  font-size: 12px;
  color: var(--text-dim);
}

.login-label {
  display: block;
  margin: 12px 0 4px;
  font-size: 12px;
  color: var(--text-dim);
}

.login-input {
  width: 100%;
  padding: 8px 10px;
  background: #3c3c3c;
  border: 1px solid var(--border-color);
  color: var(--text-bright);
  border-radius: 4px;
}

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

.login-button {
  width: 100%;
  margin-top: 20px;
  padding: 9px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-weight: 600;
}

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

.login-error {
  min-height: 16px;
  margin-top: 10px;
  color: var(--danger);
  font-size: 12px;
}

/* ---------- App shell ---------- */
.app-body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

#topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
  flex: 0 0 40px;
  background: var(--bg-topbar);
  border-bottom: 1px solid var(--border-color);
  padding: 0 10px;
}

.topbar-section {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-logo {
  font-weight: 600;
  color: var(--text-bright);
  letter-spacing: 0.3px;
}

.user-label {
  color: var(--text-dim);
  margin-right: 4px;
  font-size: 12px;
}

.btn {
  padding: 6px 12px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: #3c3c3c;
  color: var(--text-main);
}

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

.btn-primary {
  background: var(--accent);
  color: #fff;
}

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

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-color);
}

.btn-caret {
  padding: 6px 8px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.split-button {
  display: flex;
  position: relative;
}

.split-button .btn:first-child {
  border-radius: 4px 0 0 4px;
}

.split-button .btn-caret {
  border-radius: 0 4px 4px 0;
}

.dropdown-menu {
  position: absolute;
  top: 36px;
  right: 0;
  min-width: 220px;
  background: #252526;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
  z-index: 50;
  display: flex;
  flex-direction: column;
  padding: 4px;
}

.dropdown-menu.hidden {
  display: none;
}

.dropdown-item {
  background: transparent;
  border: none;
  color: var(--text-main);
  text-align: left;
  padding: 7px 10px;
  border-radius: 3px;
  white-space: nowrap;
}

.dropdown-item:hover {
  background: var(--accent);
  color: #fff;
}

#main {
  flex: 1;
  display: flex;
  min-height: 0;
}

#sidebar {
  flex: 0 0 250px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

#pm2Sidebar {
  flex: 0 0 260px;
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.6px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-color);
}

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

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 2px 4px;
  border-radius: 3px;
  font-size: 13px;
}

.icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-bright);
}

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

.tree-node {
  user-select: none;
}

.tree-row {
  display: flex;
  align-items: center;
  padding: 3px 8px;
  gap: 4px;
  white-space: nowrap;
  cursor: pointer;
  border-radius: 3px;
}

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

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

.tree-row[draggable='true'] {
  cursor: pointer;
}

.tree-row.drag-over {
  background: var(--accent);
  outline: 1px dashed var(--text-bright);
  outline-offset: -1px;
}

.tree-children {
  margin-left: 14px;
  border-left: 1px dashed #3c3c3c;
}

.tree-caret {
  width: 12px;
  display: inline-block;
  color: var(--text-dim);
  font-size: 10px;
}

.tree-icon {
  width: 18px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 18px;
}

.tree-label {
  overflow: hidden;
  text-overflow: ellipsis;
}

.tree-lock {
  flex: 0 0 auto;
  font-size: 10px;
  opacity: 0.75;
  margin-left: 2px;
}

#editorArea {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--bg-editor);
}

.tab-bar {
  display: flex;
  background: var(--bg-tabbar);
  border-bottom: 1px solid var(--border-color);
  min-height: 35px;
  overflow-x: auto;
}

.tab-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-right: 1px solid var(--border-color);
  background: var(--bg-tabbar);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
}

.tab-item.active {
  background: var(--bg-tab-active);
  color: var(--text-bright);
  border-top: 2px solid var(--accent-hover);
}

.tab-dirty {
  color: var(--warning);
  font-size: 16px;
  line-height: 1;
}

.tab-close {
  color: var(--text-dim);
  border-radius: 3px;
  padding: 0 3px;
}

.tab-close:hover {
  background: var(--danger);
  color: #fff;
}

#editorContainer {
  flex: 1;
  min-height: 0;
}

.empty-state {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 14px;
}

.pm2-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px;
}

.pm2-card {
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 8px;
  margin-bottom: 8px;
  background: #2a2a2a;
}

.pm2-card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.pm2-card-name {
  font-weight: 600;
  color: var(--text-bright);
  cursor: pointer;
}

.pm2-status {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  text-transform: uppercase;
  color: #fff;
}

.pm2-status.online { background: #2e7d32; }
.pm2-status.stopped { background: #6e6e6e; }
.pm2-status.stopping { background: var(--warning); }
.pm2-status.errored { background: var(--danger); }
.pm2-status.unknown { background: #555; }

.pm2-meta {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.pm2-actions {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.pm2-actions button {
  flex: 1;
  padding: 4px 6px;
  background: #3c3c3c;
  border: 1px solid var(--border-color);
  border-radius: 3px;
  color: var(--text-main);
  font-size: 11px;
}

.pm2-actions button:hover {
  background: var(--bg-hover);
}

#consolePanel {
  flex: 0 0 200px;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--bg-console);
  border-top: 1px solid var(--border-color);
  transition: flex-basis 0.15s ease;
}

#consolePanel.collapsed {
  flex-basis: 32px;
}

#consolePanel.collapsed .console-output {
  display: none;
}

.console-tabs {
  display: flex;
  align-items: center;
  background: #202020;
  border-bottom: 1px solid var(--border-color);
  flex: 0 0 32px;
}

.console-tab {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 0 12px;
  height: 32px;
  font-size: 12px;
  border-bottom: 2px solid transparent;
}

.console-tab.active {
  color: var(--text-bright);
  border-bottom-color: var(--accent-hover);
}

.console-clear,
.console-toggle {
  margin-left: auto;
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 0 12px;
  height: 32px;
}

.console-clear:hover,
.console-toggle:hover {
  color: var(--text-bright);
}

.console-output {
  flex: 1;
  overflow-y: auto;
  padding: 6px 10px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-all;
}

.console-line {
  margin: 0;
  line-height: 1.5;
}

.console-line.err {
  color: var(--danger);
}

.console-line.meta {
  color: var(--text-dim);
}

#statusBar {
  flex: 0 0 22px;
  background: var(--statusbar-bg);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  font-size: 11px;
}

/* ---------- Context menu ---------- */
.context-menu {
  position: fixed;
  z-index: 100;
  min-width: 180px;
  background: #252526;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.45);
  padding: 4px;
}

.context-menu-item {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text-main);
  padding: 6px 10px;
  border-radius: 3px;
  font-size: 12px;
}

.context-menu-item:hover {
  background: var(--accent);
  color: #fff;
}

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

.context-menu-separator {
  height: 1px;
  background: var(--border-color);
  margin: 4px 0;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal-box {
  width: 380px;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.modal-title {
  margin: 0 0 12px;
  color: var(--text-bright);
  font-size: 14px;
}

.modal-message {
  margin: 0 0 14px;
  color: var(--text-main);
  font-size: 12px;
}

.modal-input {
  width: 100%;
  padding: 7px 9px;
  background: #3c3c3c;
  border: 1px solid var(--border-color);
  color: var(--text-bright);
  border-radius: 4px;
  margin-bottom: 14px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ---------- Toast ---------- */
#toastRoot {
  position: fixed;
  bottom: 30px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 300;
}

.toast {
  padding: 10px 14px;
  border-radius: 4px;
  background: #2a2a2a;
  border-left: 4px solid var(--accent);
  color: var(--text-bright);
  font-size: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  min-width: 220px;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }