:root {
  --bg: #071326;
  --panel: #0e1d35;
  --panel-2: #102443;
  --line: #28456f;
  --text: #dce9ff;
  --muted: #97b2d8;
  --accent: #4fa0ff;
  --ok: #49c47c;
  --warn: #e5b94d;
  --bad: #ff7a7a;
  --left: 15%;
  --center: 65%;
  --right: 20%;
  --splitter: 1px;
  --outer-gap: 10px;
  --title-row-h: 34px;
  --control-row-h: 42px;
  --top-control-btn-h: 34px;
  --top-control-font-size: 15px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, #11315f 0%, #091930 30%, var(--bg) 100%);
}

.layout {
  display: grid;
  grid-template-columns:
    calc((100% - (2 * var(--outer-gap)) - (2 * var(--splitter))) * (var(--left) / 100%))
    var(--splitter)
    calc((100% - (2 * var(--outer-gap)) - (2 * var(--splitter))) * (var(--center) / 100%))
    var(--splitter)
    calc((100% - (2 * var(--outer-gap)) - (2 * var(--splitter))) * (var(--right) / 100%));
  height: 100vh;
  min-height: 100vh;
  overflow: hidden;
  padding: 0 var(--outer-gap);
  box-sizing: border-box;
}

.panel {
  padding: 10px 6px;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: linear-gradient(180deg, var(--panel-2) 0%, var(--panel) 100%);
}

#tree-panel,
#editor-panel,
#right-panel {
  min-height: 0;
}

.panel h2 {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}

.row-header {
  display: flex;
  align-items: center;
  min-height: var(--title-row-h);
  height: var(--title-row-h);
  margin-bottom: 8px;
}

.row-controls {
  display: flex;
  align-items: center;
  min-height: var(--control-row-h);
  height: var(--control-row-h);
  gap: 8px;
  flex-wrap: nowrap;
  margin-bottom: 8px;
}

.row-header h2 {
  line-height: 1;
}

.right-controls {
  justify-content: flex-end;
}

.scroll {
  overflow: auto;
}

#tree-root {
  flex: 1;
  min-height: 200px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px;
  background: #0b1830;
}

.badge {
  padding: 4px 8px;
  border-radius: 999px;
  background: #1b3156;
  border: 1px solid var(--line);
  color: var(--muted);
}

button,
textarea {
  background: #12284b;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
}

button {
  padding: 6px 10px;
  cursor: pointer;
}

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

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

textarea {
  width: 100%;
  padding: 8px;
}

.hidden {
  display: none !important;
}

.picker-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--top-control-btn-h);
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #12284b;
  color: var(--text);
  cursor: pointer;
  font-size: var(--top-control-font-size);
  line-height: 1;
  white-space: nowrap;
}

.picker-label:hover {
  border-color: var(--accent);
}

.picker-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.splitter {
  background: var(--line);
  cursor: col-resize;
}

.splitter:hover {
  background: #3a6597;
}

.tabs-row {
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
  margin-bottom: 8px;
}

.tabs {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  min-width: 0;
  scrollbar-gutter: stable both-edges;
  scrollbar-width: thin;
  scrollbar-color: #2f5f99 transparent;
}

.tabs::-webkit-scrollbar {
  height: 2px;
}

.tabs::-webkit-scrollbar-track {
  background: transparent;
}

.tabs::-webkit-scrollbar-thumb {
  background: #2f5f99;
  border-radius: 999px;
}

.new-tab-btn {
  flex-shrink: 0;
  height: var(--top-control-btn-h);
  padding: 0 14px;
  font-size: var(--top-control-font-size);
  line-height: 1;
}

.tab-item {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: #12284b;
}

.tab-main {
  display: inline-block;
  flex: 0 0 auto;
  border: none;
  border-right: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  padding: 4px 8px;
  white-space: nowrap;
  min-width: max-content;
  max-width: 32ch;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tab-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 24px;
  border: none;
  border-radius: 0;
  width: 24px;
  min-width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  color: var(--text);
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
}

.row-controls > button {
  height: var(--top-control-btn-h);
  padding: 0 14px;
  font-size: var(--top-control-font-size);
  line-height: 1;
  white-space: nowrap;
}

.tab-close:hover,
.tab-main:hover {
  background: #183563;
}

.tab-item.active {
  border-color: var(--accent);
}

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

.tab-item.dirty {
  border-color: var(--warn);
}

.tab-item.dirty .tab-main {
  color: #ffd88b;
}

.editor-workspace {
  position: relative;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.editor-empty-state {
  flex: 1;
  min-height: 0;
  border: 1px dashed var(--line);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 14px;
  background: #0b1830;
}

.md-toggle {
  position: static;
  z-index: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--top-control-btn-h);
  min-width: var(--top-control-btn-h);
  height: var(--top-control-btn-h);
  padding: 0;
  border-radius: 999px;
  font-size: 16px;
  line-height: 1;
  background: #163057;
  flex-shrink: 0;
  text-align: center;
}

.md-toggle.active {
  border-color: var(--accent);
}

.file-editor {
  background: #0b1830;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  margin: 0;
  color: var(--text);
  resize: none;
  width: 100%;
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 14px;
  line-height: 1.35;
}

.file-editor:read-only {
  color: var(--muted);
}

.file-editor.large {
  flex: 1;
}

.file-editor.monaco-host {
  padding: 0;
  overflow: hidden;
}

.md-preview {
  background: #0b1830;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  overflow: auto;
}

.md-preview.large {
  flex: 1;
}

.md-preview h1,
.md-preview h2,
.md-preview h3,
.md-preview h4,
.md-preview h5,
.md-preview h6 {
  margin: 10px 0 6px;
  color: #f1f6ff;
}

.md-preview p {
  margin: 6px 0;
}

.md-preview code {
  background: #163057;
  padding: 1px 4px;
  border-radius: 4px;
}

.md-preview pre {
  background: #081427;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  overflow: auto;
}

.md-preview ul {
  margin: 6px 0;
  padding-left: 18px;
}

.md-preview a {
  color: #81b9ff;
}

.md-preview .mermaid {
  margin: 10px 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #081427;
  overflow: auto;
}

.md-preview .mermaid-error {
  color: #ffd7d7;
  font-family: "IBM Plex Mono", "Consolas", monospace;
  white-space: pre-wrap;
}

.editor-footer {
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0b1830;
  padding: 8px;
  display: flex;
  height: 56px;
  min-height: 56px;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.editor-info {
  color: var(--muted);
  font-size: 12px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rag-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  flex-shrink: 0;
  white-space: nowrap;
}

.rag-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid #315685;
  box-shadow: 0 0 0 1px #0f2343 inset;
}

.rag-red {
  background: #cf4b57;
}

.rag-yellow {
  background: #d7b84d;
}

.rag-green {
  background: #49c47c;
}

.editor-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.tree-footer {
  display: grid;
  grid-template-rows: 1fr 1fr;
  align-items: center;
  justify-items: start;
  row-gap: 0;
}

.tree-footer-line {
  width: 100%;
  min-width: 0;
}

.chat-wrap,
.review-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.chat-wrap {
  flex: 1;
}

.review-wrap {
  flex: 1 1 auto;
  min-height: 0;
  height: 100%;
  margin-top: 0;
  overflow: auto;
  overflow-x: hidden;
  padding-right: 2px;
  padding-bottom: 12px;
  scrollbar-gutter: stable both-edges;
}

.editor-review {
  flex: 1;
  min-height: 0;
}

.chat-log,
.diff-view {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
  background: #0b1830;
}

.chat-log {
  flex: 1;
  min-height: 0;
  min-width: 0;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  scrollbar-gutter: stable both-edges;
  font-size: 13px;
}

.chat-entry {
  margin-bottom: 8px;
  padding: 6px 8px;
  border: 1px solid rgba(121, 149, 196, 0.25);
  border-radius: 8px;
  max-width: 88%;
  min-width: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  word-wrap: break-word;
  align-self: flex-start;
}

.chat-entry-user {
  color: var(--text);
  align-self: flex-end;
  text-align: right;
  background: #14335f;
}

.chat-entry-system {
  color: #9ab0d7;
  background: rgba(33, 56, 94, 0.35);
}

.chat-entry-error {
  color: #ff8d8d;
  background: rgba(80, 30, 37, 0.35);
}

.chat-entry-assistant {
  color: #f6f8ff;
  background: rgba(26, 44, 77, 0.5);
  max-width: 85%;
}

.chat-entry-intermediate {
  color: #b8bfd0;
}

.chat-task-progress {
  margin-top: 8px;
  width: 100%;
  height: 4px;
  border-radius: 4px;
  overflow: hidden;
  background: rgba(191, 202, 226, 0.25);
}

.chat-task-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 4px;
  background: #e6ecfa;
  transition: width 180ms ease;
}

.chat-entry:last-child {
  margin-bottom: 0;
}

.chat-sse-window {
  padding: 6px 8px;
  background: rgba(20, 31, 52, 0.65);
  border: none;
  max-width: 85%;
}

.chat-sse-window-complete {
  border-color: rgba(141, 157, 186, 0.25);
}

.chat-sse-list {
  height: 110px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 4px;
  overflow-y: scroll;
  overflow-x: hidden;
  scrollbar-gutter: stable;
  font-size: 12px;
}

.chat-sse-line {
  color: #97a4bd;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}

.chat-sse-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: normal;
  line-height: 1.35;
}

.chat-sse-line .chat-task-progress {
  margin-top: 2px;
}

.chat-form {
  margin-top: 8px;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 8px;
  flex: 0 0 20%;
  min-height: 120px;
}

#chat-input {
  min-height: 0;
  height: 100%;
  resize: none;
  overflow: auto;
}

.change-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0;
}

.change-btn {
  border: 1px solid var(--line);
  background: #12284b;
  color: var(--muted);
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
}

.change-btn.active {
  border-color: var(--accent);
  color: var(--text);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.diff-view {
  min-height: 120px;
  overflow: visible;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.review-file {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.review-file-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.review-file-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}

.review-file-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.review-file-actions > button {
  height: 28px;
  padding: 0 10px;
  font-size: 12px;
}

.diff-block {
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
}

.diff-block.accepted {
  border-color: #2f8f64;
}

.diff-block.rejected {
  border-color: #9a3d48;
}

.diff-block-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
  background: #12284b;
}

.diff-block-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
  font-size: 12px;
}

.diff-block-controls {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.diff-block-body {
  display: block;
}

.diff-block.collapsed .diff-block-body {
  display: none;
}

.diff-block-actions > button {
  height: 26px;
  padding: 0 10px;
  font-size: 12px;
}

.diff-block-actions > button.active {
  border-color: var(--accent);
}

.diff-line {
  display: block;
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 12px;
  padding: 2px 8px;
  white-space: pre-wrap;
}

.diff-line.add {
  background: #113224;
}

.diff-line.remove {
  background: #3a2027;
}

.diff-line.context {
  color: var(--muted);
  background: #0b1830;
}

.tree-item {
  padding: 2px 4px;
  cursor: pointer;
  user-select: none;
  border-radius: 4px;
}

.tree-item:hover {
  background: #133056;
}

.tree-item-selected {
  background: #183563;
}

.tree-item-dir {
  color: var(--muted);
}

.tree-context-menu {
  position: fixed;
  z-index: 10000;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  padding: 6px;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f2343;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
}

.tree-context-menu > button {
  height: 32px;
  text-align: left;
  padding: 0 10px;
  font-size: 13px;
  border-radius: 6px;
}

.tree-inline-input {
  width: 100%;
  height: 28px;
  padding: 0 8px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: #0b1830;
  color: var(--text);
  font-size: 13px;
  line-height: 1;
}

.indexing-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 10, 20, 0.78);
  backdrop-filter: blur(2px);
}

.indexing-card {
  width: min(640px, calc(100vw - 40px));
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
  background: linear-gradient(180deg, #112648 0%, #0c1a33 100%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.indexing-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
  color: var(--text);
}

.indexing-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 8px;
  margin-bottom: 8px;
  min-height: 20px;
}

.indexing-label {
  color: var(--muted);
  font-size: 13px;
}

.indexing-value {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
  font-size: 13px;
}

.indexing-progress {
  margin-top: 8px;
  height: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #0b1830;
  overflow: hidden;
}

.indexing-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2f5f99 0%, #4fa0ff 100%);
  transition: width 0.2s ease;
}

.indexing-progress.indeterminate .indexing-progress-bar {
  width: 35%;
  animation: indexing-indeterminate-slide 1s linear infinite;
}

.indexing-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 14px;
}

@keyframes indexing-indeterminate-slide {
  0% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(320%);
  }
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .splitter {
    display: none;
  }
}