:root {
  --ar-bg-start: #f5f7fa;
  --ar-bg: #e8edf3;
  --ar-window: #eef2f6;
  --ar-chrome-start: #ffffff;
  --ar-chrome: #eef3f8;
  --ar-chrome-glass: linear-gradient(180deg, rgb(255 255 255 / 66%), rgb(238 243 248 / 42%));
  --ar-panel: rgb(255 255 255 / 72%);
  --ar-content: rgb(255 255 255 / 46%);
  --ar-card: rgb(255 255 255 / 68%);
  --ar-glass: linear-gradient(180deg, rgb(255 255 255 / 58%), rgb(247 249 252 / 34%));
  --ar-panel-border: #b9c4d0;
  --ar-control-border: #aab6c3;
  --ar-subtle-border: #d6dee6;
  --ar-text: #18212f;
  --ar-muted: #5d6b7c;
  --ar-danger: #a83232;
  --ar-success: #1f6f43;
  --ar-hover-border: #81a9dc;
  --ar-hover-bg: #e6f2ff;
  --ar-selection: #e8f3ff;
  --ar-selection-border: #5d91cc;
  --ar-splitter: #8f9baa;
  --ar-dialog-panel: #ffffff;
  --ar-shadow-dialog: 0 18px 50px rgb(15 23 42 / 28%);
  color-scheme: light dark;
  color: var(--ar-text);
  background: linear-gradient(var(--ar-bg-start), var(--ar-bg));
  font-family: Tahoma, "MS UI Gothic", "Yu Gothic UI", system-ui, sans-serif;
  font-size: 13px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ar-bg-start: #242a33;
    --ar-bg: #171b22;
    --ar-window: rgb(37 43 52 / 72%);
    --ar-chrome-start: #303743;
    --ar-chrome: #252c36;
    --ar-chrome-glass: linear-gradient(180deg, rgb(48 55 67 / 54%), rgb(37 44 54 / 34%));
    --ar-panel: rgb(37 43 52 / 66%);
    --ar-content: rgb(20 24 31 / 36%);
    --ar-card: rgb(43 50 60 / 58%);
    --ar-glass: linear-gradient(180deg, rgb(48 55 67 / 48%), rgb(25 30 38 / 26%));
    --ar-panel-border: #4f5a68;
    --ar-control-border: #657180;
    --ar-subtle-border: rgb(119 132 150 / 42%);
    --ar-text: #e7ebf1;
    --ar-muted: #aab3c1;
    --ar-danger: #ff9c9c;
    --ar-success: #80d8a7;
    --ar-hover-border: #81a9dc;
    --ar-hover-bg: rgb(74 102 135 / 42%);
    --ar-selection: rgb(47 88 126 / 62%);
    --ar-selection-border: #6ea5da;
    --ar-splitter: #6b7786;
    --ar-dialog-panel: #252b34;
  }
}

.ar-shell[data-theme="dark"] {
  --ar-bg-start: #242a33;
  --ar-bg: #171b22;
  --ar-window: rgb(37 43 52 / 72%);
  --ar-chrome-start: #303743;
  --ar-chrome: #252c36;
  --ar-chrome-glass: linear-gradient(180deg, rgb(48 55 67 / 54%), rgb(37 44 54 / 34%));
  --ar-panel: rgb(37 43 52 / 66%);
  --ar-content: rgb(20 24 31 / 36%);
  --ar-card: rgb(43 50 60 / 58%);
  --ar-glass: linear-gradient(180deg, rgb(48 55 67 / 48%), rgb(25 30 38 / 26%));
  --ar-panel-border: #4f5a68;
  --ar-control-border: #657180;
  --ar-subtle-border: rgb(119 132 150 / 42%);
  --ar-text: #e7ebf1;
  --ar-muted: #aab3c1;
  --ar-danger: #ff9c9c;
  --ar-success: #80d8a7;
  --ar-hover-border: #81a9dc;
  --ar-hover-bg: rgb(74 102 135 / 42%);
  --ar-selection: rgb(47 88 126 / 62%);
  --ar-selection-border: #6ea5da;
  --ar-splitter: #6b7786;
  --ar-dialog-panel: #252b34;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  min-height: 0;
  margin: 0;
  overflow-x: auto;
  overflow-y: hidden;
}

body,
#app {
  min-width: 640px;
}

#app {
  width: 100%;
  height: 100dvh;
  min-height: 0;
}

button,
select,
textarea,
input {
  color: var(--ar-text);
  font: inherit;
}

button {
  min-height: 0;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 4px 10px;
  background: transparent;
  cursor: pointer;
}

button:hover,
button:focus-visible {
  border-color: var(--ar-hover-border);
  background: var(--ar-hover-bg);
  outline: none;
}

button:disabled,
button:disabled:hover,
button:disabled:focus-visible {
  border-color: transparent;
  opacity: 0.46;
  background: transparent;
  cursor: default;
}

select,
textarea,
input {
  border: 1px solid var(--ar-control-border);
  border-radius: 3px;
  background: var(--ar-content);
}

.ar-shell {
  display: grid;
  grid-template-rows: auto minmax(220px, 1fr) 6px minmax(150px, var(--ar-selected-height, 30vh)) 6px minmax(86px, var(--ar-log-height, 156px)) auto;
  width: 100%;
  height: 100%;
  min-width: 640px;
  min-height: 0;
  overflow: hidden;
  color: var(--ar-text);
  background: linear-gradient(var(--ar-bg-start), var(--ar-bg));
}

.ar-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--ar-panel-border);
  border-bottom: 0;
  padding: 4px;
  background: var(--ar-chrome-glass);
}

.ar-brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 8px;
}

.ar-brand strong {
  font-size: 13px;
  font-weight: 700;
}

.ar-brand span,
.ar-pane small {
  color: var(--ar-muted);
  font-size: 12px;
}

.ar-workspace {
  display: grid;
  grid-template-columns: minmax(280px, var(--ar-document-width, 42%)) 6px minmax(320px, 1fr);
  gap: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--ar-panel-border);
  border-bottom: 0;
  padding: 8px 8px 6px;
  background: var(--ar-window);
}

.ar-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--ar-panel-border);
  border-radius: 3px;
  background: var(--ar-glass);
}

.ar-document-pane {
  margin-right: 6px;
}

.ar-dereditor-host {
  display: block;
  width: 100%;
  height: 100% !important;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.ar-candidate-pane {
  margin-left: 6px;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.ar-candidate-pane .ar-scroll {
  border: 0;
  background: transparent;
}

.ar-pane-menu,
.ar-log-menu {
  display: flex;
  align-items: center;
  gap: 2px;
  min-height: 32px;
  padding: 4px;
  border-bottom: 1px solid var(--ar-subtle-border);
  background: linear-gradient(var(--ar-chrome-start), var(--ar-chrome));
}

.ar-pane-menu h2,
.ar-log-menu strong {
  margin: 0 auto 0 0;
  padding: 4px 6px;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: none;
}

.ar-scroll {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  margin: 8px;
  overflow: auto;
  border: 1px solid var(--ar-subtle-border);
  border-radius: 3px;
  padding: 10px;
  background: var(--ar-content);
}

.ar-workspace-divider {
  min-width: 6px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: linear-gradient(90deg, transparent 0 2px, var(--ar-splitter) 2px 3px, transparent 3px 6px);
  cursor: col-resize;
  touch-action: none;
}

.ar-pane-divider {
  min-height: 6px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: linear-gradient(0deg, transparent 0 2px, var(--ar-splitter) 2px 3px, transparent 3px 6px);
  cursor: row-resize;
  touch-action: none;
}

.ar-workspace-divider:hover,
.ar-workspace-divider:focus-visible,
.ar-shell.ar-resizing-columns .ar-workspace-divider,
.ar-pane-divider:hover,
.ar-pane-divider:focus-visible,
.ar-shell.ar-resizing-rows .ar-pane-divider {
  border-color: var(--ar-hover-border);
  background-color: var(--ar-hover-bg);
  outline: none;
}

.ar-shell.ar-resizing-columns,
.ar-shell.ar-resizing-columns * {
  cursor: col-resize !important;
  user-select: none;
}

.ar-shell.ar-resizing-rows,
.ar-shell.ar-resizing-rows * {
  cursor: row-resize !important;
  user-select: none;
}

.ar-candidate-split {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  min-height: 0;
}

.ar-notice {
  flex: 0 0 auto;
  width: 100%;
  min-height: 28px;
  padding: 4px 10px 6px;
  color: var(--ar-muted);
  background: transparent;
  font-size: 12px;
  line-height: 1.35;
}

.ar-candidate-tree {
  position: relative;
}

.ar-tree-node {
  margin: 0 0 6px;
}

.ar-tree-node summary {
  position: relative;
  display: grid;
  grid-template-columns: 12px 18px minmax(0, 1fr) auto;
  gap: 5px;
  align-items: center;
  width: 100%;
  min-height: 32px;
  border: 1px solid var(--ar-subtle-border);
  border-radius: 3px;
  padding: 5px 8px;
  background: var(--ar-card);
  text-align: left;
  cursor: pointer;
}

.ar-tree-node summary::marker,
.ar-tree-node summary::-webkit-details-marker {
  display: none;
  content: "";
}

.ar-tree-node summary:hover,
.ar-tree-node summary:focus-visible,
.ar-tree-item:hover,
.ar-tree-item:focus-visible {
  border-color: var(--ar-hover-border);
  background: var(--ar-hover-bg);
  outline: none;
}

.ar-tree-item {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr) auto;
  gap: 5px;
  align-items: center;
  width: 100%;
  min-height: 32px;
  margin: 0;
  border-color: transparent;
  padding: 5px 8px;
  text-align: left;
}

.ar-tree-alternatives {
  position: absolute;
  top: calc(100% + 2px);
  left: 28px;
  right: 8px;
  z-index: 20;
  max-height: 220px;
  overflow: auto;
  border: 1px solid var(--ar-panel-border);
  border-radius: 3px;
  padding: 4px;
  background: var(--ar-panel);
  box-shadow: 0 8px 18px rgb(30 41 59 / 16%);
}

.ar-tree-alternatives[hidden] {
  display: none;
}

.ar-tree-checkmark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  color: var(--ar-success);
  font-weight: 700;
}

.ar-disclosure {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 11px;
  height: 11px;
  border: 1px solid #7f8b97;
  color: var(--ar-text);
  background: var(--ar-panel);
  font-size: 10px;
  line-height: 1;
}

details:not([open]) > summary > .ar-disclosure::before {
  content: "+";
}

details[open] > summary > .ar-disclosure::before {
  content: "-";
}

.ar-disclosure-hidden {
  border-color: transparent;
  background: transparent;
  visibility: hidden;
}

.ar-tree-icon-slot,
.ar-tree-icon-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: 1px solid transparent;
  border-radius: 2px;
}

.ar-tree-icon-action {
  cursor: pointer;
}

.ar-tree-icon-action:hover,
.ar-tree-icon-action:focus-visible,
.ar-tree-icon-action[aria-expanded="true"] {
  border-color: var(--ar-hover-border);
  background: var(--ar-hover-bg);
  outline: none;
}

.ar-tree-icon {
  position: relative;
  display: inline-block;
  width: 16px;
  height: 14px;
}

.ar-tree-icon-branch::before {
  position: absolute;
  top: 1px;
  left: 1px;
  width: 7px;
  height: 4px;
  border: 1px solid #c29018;
  border-bottom: 0;
  background: #ffd35a;
  content: "";
}

.ar-tree-icon-branch::after {
  position: absolute;
  top: 4px;
  left: 0;
  width: 15px;
  height: 9px;
  border: 1px solid #c29018;
  background: #ffc83d;
  content: "";
}

.ar-tree-icon-leaf::before {
  position: absolute;
  top: 1px;
  left: 3px;
  width: 10px;
  height: 12px;
  border: 1px solid #9ca7b3;
  background: var(--ar-panel);
  box-shadow: inset -3px 3px 0 #eef2f6;
  content: "";
}

.ar-tree-selected {
  border-color: var(--ar-selection-border) !important;
  background: var(--ar-selection) !important;
}

.ar-subtree-node summary {
  background: color-mix(in srgb, var(--ar-panel) 94%, var(--ar-text) 6%);
}

.ar-tree-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}

.ar-tree-note {
  color: var(--ar-muted);
  font-size: 12px;
  white-space: nowrap;
}

.ar-tree-children {
  margin: 6px 0 0 14px;
  padding-left: 10px;
  border-left: 1px solid var(--ar-subtle-border);
}

.ar-detail-pane,
.ar-log-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--ar-window);
}

.ar-detail-pane {
  background: transparent;
}

.ar-selected-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-height: 34px;
  margin: 0;
  border: 1px solid var(--ar-subtle-border);
  border-radius: 3px;
  padding: 4px;
  background: var(--ar-chrome-glass);
  font-size: 12px;
}

.ar-selected-header strong {
  padding: 4px 6px;
}

.ar-selected-header span {
  overflow: hidden;
  color: var(--ar-muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ar-selected-detail {
  display: flex;
  flex: 1 1 auto;
  flex-wrap: wrap;
  gap: 8px;
  align-content: start;
  min-height: 0;
  margin: 8px;
  overflow-y: auto;
  overflow-x: hidden;
  border: 0;
  border-radius: 0;
  padding: 10px;
  color: var(--ar-muted);
  background: transparent;
}

.ar-key-value {
  flex: 0 1 max-content;
  min-width: 0;
  max-width: 100%;
  border: 1px solid var(--ar-subtle-border);
  border-radius: 3px;
  background: var(--ar-card);
}

.ar-key-value h3 {
  margin: 0;
  padding: 6px 8px;
  border-bottom: 1px solid var(--ar-subtle-border);
  color: var(--ar-text);
  font-size: 12px;
  white-space: nowrap;
}

.ar-key-value pre {
  margin: 0;
  padding: 8px;
  overflow: visible;
  color: var(--ar-text);
  white-space: pre;
  overflow-wrap: normal;
  font: 12px/1.45 Consolas, "Courier New", monospace;
}

.ar-key-value-bytes {
  flex: 1 1 calc(14ch + 18px);
  min-width: calc(14ch + 18px);
}

.ar-key-value-bytes pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.ar-log-menu {
  justify-content: flex-end;
  min-height: 32px;
  padding: 0 6px 4px;
  border: 0;
  background: transparent;
}

.ar-log-menu button {
  min-height: 24px;
  padding: 2px 8px;
}

.ar-log {
  display: grid;
  align-content: start;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  margin: 0;
  overflow: auto;
  padding: 5px 6px;
  color: var(--ar-text);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  line-height: 1.35;
}

.ar-log-row {
  display: grid;
  grid-template-columns: 86px minmax(120px, 220px) minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  min-width: 0;
  padding: 2px 0;
  border-bottom: 1px solid var(--ar-subtle-border);
}

.ar-log-row time,
.ar-log-row span {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--ar-muted);
}

.ar-log-row[data-level="error"] strong,
.ar-error,
[data-level="error"] {
  color: var(--ar-danger);
}

.ar-log-row[data-level="success"] strong,
[data-level="success"] {
  color: var(--ar-success);
}

.ar-status {
  min-height: 28px;
  padding: 5px 10px 6px;
  border-top: 1px solid var(--ar-panel-border);
  color: var(--ar-muted);
  background: var(--ar-window);
  font-size: 12px;
  line-height: 1.35;
}

.ar-empty {
  margin: 0;
  color: var(--ar-muted);
  font-size: 12px;
  line-height: 1.4;
}

.ar-about-dialog,
.ar-corpus-dialog,
.ar-corpus-edit-dialog {
  max-height: calc(100vh - 32px);
  margin: auto;
  border: 0;
  padding: 0;
  color: var(--ar-text);
  background: transparent;
}

.ar-about-dialog::backdrop,
.ar-corpus-dialog::backdrop,
.ar-corpus-edit-dialog::backdrop {
  background: rgb(15 23 42 / 28%);
}

.ar-about-dialog > section,
.ar-corpora-panel,
.ar-corpus-edit-panel {
  display: grid;
  gap: 8px;
  border: 1px solid var(--ar-panel-border);
  border-radius: 4px;
  padding: 14px;
  background: var(--ar-dialog-panel);
  box-shadow: var(--ar-shadow-dialog);
}

.ar-about-dialog {
  width: min(380px, calc(100vw - 32px));
}

.ar-corpus-dialog {
  width: min(720px, calc(100vw - 32px));
}

.ar-corpus-edit-dialog {
  width: min(860px, calc(100vw - 32px));
}

.ar-about-dialog > section {
  gap: 12px;
}

.ar-corpora-panel,
.ar-corpus-edit-panel {
  max-height: min(82vh, 720px);
  overflow: hidden;
}

.ar-about-dialog p {
  margin: 0;
}

.ar-dialog-name {
  font-size: 16px;
  font-weight: 700;
}

.ar-dialog-detail,
.ar-dialog-description {
  color: var(--ar-muted);
  font-size: 12px;
  line-height: 1.5;
}

.ar-about-dialog form {
  display: flex;
  justify-content: flex-end;
}

.ar-corpora-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
}

.ar-corpora-header-actions {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: flex-end;
}

.ar-corpora-name,
.ar-corpora-detail {
  margin: 0;
}

.ar-corpora-name {
  font-weight: 700;
  font-size: 16px;
}

.ar-corpora-detail {
  margin-top: 2px;
  color: var(--ar-muted);
  font-size: 12px;
  line-height: 1.35;
}

.ar-corpora-actions {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: flex-start;
}

.ar-corpus-add {
  position: relative;
}

.ar-corpus-add-menu {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  z-index: 30;
  display: grid;
  min-width: 150px;
  border: 1px solid var(--ar-panel-border);
  border-radius: 3px;
  padding: 4px;
  background: var(--ar-panel);
  box-shadow: 0 8px 18px rgb(30 41 59 / 16%);
}

.ar-corpus-add-menu[hidden] {
  display: none;
}

.ar-corpus-add-menu button {
  width: 100%;
  justify-content: flex-start;
  text-align: left;
}

.ar-corpus-list {
  display: grid;
  gap: 6px;
  min-height: 0;
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--ar-subtle-border);
  border-radius: 3px;
  padding: 6px;
  background: var(--ar-content);
}

.ar-corpus-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  margin: 0;
  border: 1px solid var(--ar-subtle-border);
  border-radius: 3px;
  padding: 7px;
  background: var(--ar-card);
}

.ar-corpus-row-summary {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.ar-corpus-row-summary strong,
.ar-corpus-row-summary span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ar-corpus-row-summary span {
  color: var(--ar-muted);
  font-size: 12px;
}

.ar-corpus-row-actions,
.ar-corpus-edit-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

.ar-corpus-empty,
.ar-corpus-status {
  margin: 0;
  min-height: 18px;
  color: var(--ar-muted);
  font-size: 12px;
  line-height: 1.35;
}

.ar-corpus-status[data-level="success"] {
  color: var(--ar-success);
}

.ar-corpus-status[data-level="error"] {
  color: var(--ar-danger);
}

.ar-corpus-field {
  display: grid;
  gap: 4px;
  min-width: 0;
  color: var(--ar-muted);
  font-size: 12px;
}

.ar-corpus-field input,
.ar-corpus-field textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--ar-control-border);
  border-radius: 3px;
  padding: 6px 8px;
  color: var(--ar-text);
  background: var(--ar-content);
  font: inherit;
}

.ar-corpus-field textarea {
  min-height: 360px;
  resize: vertical;
  overflow: auto;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  line-height: 1.45;
  white-space: pre;
}

.ar-corpus-source-field {
  min-height: 0;
}

@media (max-width: 760px) {
  .ar-shell {
    grid-template-rows: auto minmax(260px, 1fr) 6px minmax(160px, var(--ar-selected-height, 30vh)) 6px minmax(86px, var(--ar-log-height, 180px)) auto;
  }

  .ar-workspace {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(220px, 42%) minmax(260px, 1fr);
    overflow: auto;
  }

  .ar-workspace-divider {
    display: none;
  }

  .ar-document-pane,
  .ar-candidate-pane {
    margin: 0;
  }

  .ar-log-row {
    grid-template-columns: 86px minmax(0, 1fr);
  }

  .ar-log-row span {
    grid-column: 1 / -1;
  }
}

@media (max-height: 720px) {
  .ar-shell {
    grid-template-rows: auto minmax(180px, 1fr) 6px minmax(110px, var(--ar-selected-height, 24vh)) 6px minmax(72px, var(--ar-log-height, 112px)) auto;
  }

  .ar-selected-header,
  .ar-log-menu {
    min-height: 28px;
  }
}