/* OpenResearch design system, mirrored from openresearch.sh www/src/styles.css.
   Light theme by default, dark via prefers-color-scheme. Quiet idiom:
   hairline borders, soft radii, flat surfaces that tint on hover. */

:root {
  --base: #ffffff;
  --canvas: #faf8f4;
  --panel: #f3f0ea;
  --surface: #faf7f2;
  --surface-bright: #fdfbfb;
  --highlight: #fdf3f1;
  --text: #1d1b1a;
  --subtext: #737373;
  --muted: #a1a1a1;
  --primary: #9a2036;
  --primary-subtle: #f7e9ec;
  --secondary: #4a90e2;
  --error: #e2a100;
  --border: #d4d4d4;
  --border-variant: #e5e5e5;

  --accent-orange: #da642c;
  --accent-red: #d94654;
  --accent-teal: #209a84;
  --accent-blue: #3a8dff;
  --accent-pink: #ff2b90;
  --accent-amber: #da9100;
  --accent-green: #5eb64c;
  --accent-purple: #9c5cff;

  --accent-green-subtle: #e7f4e5;
  --accent-amber-subtle: #fff3e1;
  --accent-teal-subtle: #e1f3f0;
  --accent-red-subtle: #fbe9ea;
  --accent-blue-subtle: #e5f0ff;
  --accent-purple-subtle: #f1e8ff;

  --dots-muted: #e3ded5;
  --dots-strong: #bdb6a8;

  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;

  /* Type scale. Sizes are px steps; anything smaller than --fs-2xs is banned. */
  --fs-2xs: 10px;
  --fs-xs: 11px;
  --fs-sm: 12px;
  --fs-md: 13px;
  --fs-base: 14px;
  --fs-lg: 15px;
  --fs-xl: 16px;
  --fs-2xl: 18px;
  --fs-3xl: 22px;
  --fs-4xl: 28px;
  --fs-5xl: 34px;

  /* Weight scale. Display weight is for hero headings only; the brand
     wordmark keeps a literal 800. */
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-display: 700;

  /* Radius scale. True circles stay literal 50%. */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-xl: 12px;
  --radius-full: 999px;

  /* xterm surface — deliberately dark in both themes; keep in sync with the
     terminal theme in LogTerminal.tsx. */
  --term-bg: #1a1a1a;
  /* Readable column cap shared by the chat header/thread/composer (which must
     stay in lockstep or the chat column misaligns) and the settings/doc views. */
  --readable-col: 760px;

  /* Legacy aliases (pre-restyle class/inline usage). New code uses the tokens above. */
  --bg: var(--base);
  --bg-canvas: var(--canvas);
  --surface-2: var(--panel);
  --border-strong: var(--border);
  --accent: var(--primary);
  --teal: var(--accent-teal);
  --green: var(--accent-green);
  --red: var(--accent-red);
  --amber: var(--accent-amber);
  --purple: var(--accent-purple);

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --base: #0e0c0c;
    --canvas: #141110;
    --panel: #221f1e;
    --surface: #1d1b1a;
    --surface-bright: #130f0f;
    --highlight: #393433;
    --text: #e6e1e0;
    --subtext: #a68e8b;
    --muted: #737373;
    --primary: #ffb3ad;
    --primary-subtle: #33191b;
    --secondary: #3e7fcf;
    --error: #ffb951;
    --border: #525252;
    --border-variant: #404040;

    --accent-amber: #e67e22;

    --accent-green-subtle: #1c2b18;
    --accent-amber-subtle: #33260f;
    --accent-teal-subtle: #12332d;
    --accent-red-subtle: #331418;
    --accent-blue-subtle: #10233a;
    --accent-purple-subtle: #251933;

    --dots-muted: #2a2523;
    --dots-strong: #555555;

    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  height: 100%;
  margin: 0;
}

body {
  background: var(--base);
  color: var(--text);
  font-family: var(--sans);
  font-size: var(--fs-base);
  line-height: 1.45;
  overflow: hidden;
}

::selection {
  background: var(--highlight);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

input,
textarea,
select {
  font: inherit;
  color: var(--text);
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--text);
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 1; /* Firefox dims placeholders on its own */
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-track {
  background: transparent;
}

@keyframes pulse {
  50% {
    opacity: 0.35;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---- app shell ---- */

.app {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Horizontal padding gives the chat column a constant gutter to the screen
   edge; it stays even when a side panel collapses (a flex gap would not).
   The panels' inner margins add the matching gutter when a panel is present. */
.app-body {
  display: flex;
  flex: 1;
  min-height: 0;
  padding: 0 14px;
}

/* ---- projects home ---- */

.home {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-gutter: stable both-edges;
  background: var(--canvas);
}
.home-inner {
  max-width: 620px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  color: var(--text);
}
.wordmark svg {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}

.home-brand {
  /* Matches the openresearch.sh landing wordmark (font-bold = 700). */
  font-weight: var(--fw-display);
  font-size: var(--fs-4xl);
  letter-spacing: -0.02em;
  margin-bottom: 36px;
}
.home-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.home-head h2 {
  margin: 0;
  font-size: var(--fs-2xl);
  letter-spacing: -0.01em;
}
.home-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
  padding: 14px 16px;
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition:
    border-color 120ms ease,
    box-shadow 120ms ease;
}
.project-card:hover {
  border-color: var(--text);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}
.project-delete {
  position: absolute;
  top: 10px;
  right: 10px;
  display: none;
  padding: 5px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  line-height: 0;
}
.project-card:hover .project-delete {
  display: block;
}
.project-delete:hover {
  color: var(--danger, #d33);
  background: var(--overlay, rgba(0, 0, 0, 0.05));
}
.project-card .name {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
}
.project-card .repo {
  color: var(--text);
}
.project-card .paper {
  font-size: var(--fs-xs);
  color: var(--muted);
}
.project-card .time {
  font-size: var(--fs-xs);
  color: var(--muted);
}

/* ---- rail header (brand + project switcher atop the agents rail) ---- */

.rail-brand {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 48px;
  /* 12px left text inset + ~14px icon right edge — keep in step with
     .rail-nav below. */
  padding: 0 8px 0 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
/* Back arrow + current project name; truncates, arrow stays visible. */
.rail-brand .brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-md);
  color: var(--text);
  padding: 4px 6px 4px 0;
  border-radius: var(--radius-sm);
}
.rail-brand .brand:hover {
  color: var(--subtext);
}
.rail-brand .brand svg {
  flex-shrink: 0;
}
.rail-brand .brand .brand-project {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--subtext);
}
.icon-btn:hover {
  color: var(--text);
  background: var(--surface);
}

/* CSS-only tooltip for icon-only controls: `data-tip` holds the label.
   Inverted bubble (text-on-base swap) so it reads in both themes. Default
   below the control; `.tip-up` flips above (for footer rows). */
[data-tip] {
  position: relative;
}
[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + 6px);
  right: -4px;
  background: var(--text);
  color: var(--base);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  line-height: 1;
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.1s ease 0.3s, visibility 0s linear 0.4s;
  z-index: 60;
}
[data-tip]:hover::after {
  opacity: 1;
  visibility: visible;
}
.tip-up[data-tip]::after {
  top: auto;
  bottom: calc(100% + 6px);
}

/* ---- buttons (quiet: 1px border, rounded, flat) ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--base);
  color: var(--text);
  white-space: nowrap;
  transition:
    background 120ms ease,
    border-color 120ms ease,
    color 120ms ease;
}
.btn:hover:not(:disabled) {
  background: var(--surface);
}
.btn:active:not(:disabled) {
  background: var(--highlight);
}
.btn:disabled {
  opacity: 0.45;
  cursor: default;
}
.btn.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--base);
}
.btn.primary:hover:not(:disabled) {
  background: color-mix(in oklab, var(--primary) 88%, var(--text));
  border-color: color-mix(in oklab, var(--primary) 88%, var(--text));
}
.btn.primary:active:not(:disabled) {
  background: color-mix(in oklab, var(--primary) 80%, var(--text));
  border-color: color-mix(in oklab, var(--primary) 80%, var(--text));
}
.btn.danger {
  color: var(--accent-red);
}
.btn.danger:hover:not(:disabled) {
  background: color-mix(in oklab, var(--accent-red) 8%, transparent);
}
.btn.danger:active:not(:disabled) {
  background: color-mix(in oklab, var(--accent-red) 14%, transparent);
}
.btn.ghost {
  border-color: transparent;
  color: var(--text);
}
.btn.ghost:hover:not(:disabled) {
  color: var(--text);
  background: var(--surface);
}
.btn.sm {
  padding: 3px 9px;
  font-size: var(--fs-xs);
  border-radius: var(--radius-sm);
}

/* ---- status badge (colored dot + quiet label; live statuses pulse) ---- */

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text);
  white-space: nowrap;
}
.status-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}
.status-badge.live .dot {
  animation: pulse 1.2s ease-in-out infinite;
}
/* The status color lives on the dot; the label stays neutral. */
.st-done .dot {
  color: var(--accent-green);
}
.st-failed .dot {
  color: var(--accent-red);
}
.st-running .dot {
  color: var(--accent-teal);
}
.st-starting .dot {
  color: var(--accent-amber);
}
.st-cancelled .dot {
  color: var(--accent-orange);
}
.st-editing .dot {
  color: var(--accent-purple);
}
.st-idle .dot {
  color: var(--muted);
}

/* ---- panes ---- */

/* Shared chrome for the floating side panels (rail + right pane): border,
   rounded corners, soft two-layer shadow. Background and margins stay
   per-panel. */
.floating-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow:
    0 6px 24px color-mix(in oklab, var(--text) 5%, transparent),
    0 1px 4px color-mix(in oklab, var(--text) 4%, transparent);
  overflow: hidden;
}

/* Floating agents rail: fixed-width, collapsible (not resizable). */
.session-rail {
  width: 232px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  /* right margin = the gutter to the chat column; screen-edge gutter comes
     from .app-body's left padding. */
  margin: 10px 14px 10px 0;
  background: var(--base);
  min-height: 0;
}
/* Rail nav: new session + settings sections, above the Recents list. */
.rail-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px;
  flex-shrink: 0;
}
.rail-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  font-size: var(--fs-md);
  color: var(--text);
  border-radius: var(--radius-md);
  text-align: left;
}
.rail-nav-item:hover {
  background: var(--surface);
}
.rail-nav-item.active {
  background: var(--panel);
  font-weight: var(--fw-semibold);
}

.rail-section-label {
  padding: 10px 10px 6px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--subtext);
}
/* "Recents" label + the session filter button on one line. */
.rail-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.rail-filter {
  position: relative;
  display: inline-flex;
  margin-right: 2px;
}
/* A non-default filter keeps the button lit via the shared .icon-btn.active. */
.rail-filter-btn {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
}
.rail-empty {
  padding: 6px 10px;
  font-size: var(--fs-sm);
  color: var(--muted);
}
.session-rail .rail-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 4px 8px;
}

/* The pane fills the leftover space so the thread's scrollbar reaches its
   right edge; the readable-col cap lives on the header, the composer, and
   .chat-thread-inner (inside the scroller), which center themselves. */
.chat-pane {
  flex: 1;
  /* min-width:0 (not 360) so a wide panel can never force the flex row past
     the viewport; the panel's own clamp keeps the usable minimum. */
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--base);
  min-height: 0;
}

/* Floating right panel: a closable, resizable card. `.max` lifts it out of
   the flex row to cover (nearly) the whole window, still floating. */
.right-pane {
  position: relative;
  flex-shrink: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  /* left margin = the gutter to the chat column; screen-edge gutter comes
     from .app-body's right padding. */
  margin: 10px 0 10px 14px;
  background: var(--canvas);
}
.right-pane.max {
  position: fixed;
  inset: 10px;
  margin: 0;
  z-index: 60;
  box-shadow: 0 12px 40px color-mix(in oklab, var(--text) 22%, transparent);
}

/* Invisible grab strip on the panel's left edge. Sits above the detail
   overlays (.drawer/.term-view are z-index 20, inset 0) so resizing works in
   every view, not just the tree. */
.panel-resizer {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  cursor: col-resize;
  z-index: 30;
}
.panel-resizer:hover,
.panel-resizer:active {
  background: color-mix(in oklab, var(--text) 12%, transparent);
}

/* Expand/close cluster at the right end of the panel's tab bar. */
.panel-controls {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

/* Panel tab bar: pinned Log/Artifacts + closable experiment/file tabs. */
.tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 10px;
  height: 40px;
  border-bottom: 1px solid var(--border);
  background: var(--base);
  flex-shrink: 0;
}

/* Scrollable strip of tabs. */
.tab-strip {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.tab-strip::-webkit-scrollbar {
  display: none;
}

/* Dynamic (closable) tabs: truncated label, inline close "x". */
.tab.closable {
  max-width: 176px;
  padding-right: 4px;
}
.tab .tab-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tab .tab-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-xs);
  color: var(--muted);
  flex-shrink: 0;
}
.tab .tab-close:hover {
  background: color-mix(in oklab, var(--text) 15%, transparent);
  color: var(--text);
}

/* One tab style for the whole strip — pinned tabs simply have no close "x". */
.tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  flex-shrink: 0;
}
.tab.active {
  background: var(--surface);
}
.tab-body {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Toolbar row above a tab's content (e.g. the tree/table switch). */
.pane-toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 10px 12px 0;
  flex-shrink: 0;
}
.pane-content {
  flex: 1;
  min-height: 0;
  position: relative;
}

/* Right-pane plan tab: a plain, padded document surface — the plan is a
   markdown file, not a card, so no tinted background. */
.plan-tab-content {
  overflow-y: auto;
  background: var(--base);
  padding: 18px 24px;
}
.plan-tab-content .md {
  max-width: var(--readable-col);
}

/* Segmented control: a clearly-darker track (the theme's creams all blend
   into each other) with a raised white pill on the active segment. */
.seg {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--text) 10%, transparent);
}
.seg button {
  padding: 3px 12px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
  border-radius: var(--radius-sm);
}
.seg button:hover {
  color: var(--text);
}
.seg button.active {
  background: var(--base);
  box-shadow: 0 1px 3px color-mix(in oklab, var(--text) 25%, transparent);
}

/* ---- chat ---- */

/* Borderless header that fades into the chat: the thread scrolls under a
   gradient hanging below the bar instead of hitting a hard rule. */
.chat-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  background: var(--base);
  flex-shrink: 0;
  height: 48px;
  position: relative;
  z-index: 4;
  width: 100%;
  max-width: var(--readable-col);
  margin: 0 auto;
}
/* Rail hidden: the header spans the full pane (Claude-desktop style) so the
   reopen toggle lands in the window's top-left corner with the title beside
   it; the tighter padding puts the icon on the screen-edge gutter. */
.chat-header.rail-hidden {
  max-width: none;
  padding: 0 2px;
}
/* Breathing room between the corner toggle and the title. */
.chat-header.rail-hidden > .icon-btn:first-child {
  margin-right: 12px;
}
.chat-header::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 24px;
  background: linear-gradient(to bottom, var(--base), transparent);
  pointer-events: none;
}


.chat-header .title {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  border-radius: var(--radius-md);
  font-size: var(--fs-md);
  color: var(--text);
  cursor: pointer;
  user-select: none;
}
.session-row:hover {
  background: var(--surface);
}
.session-row.active {
  background: var(--surface);
  font-weight: var(--fw-medium);
}
/* Reserved status column so titles align whether or not a busy dot shows. */
.session-row .session-dot {
  width: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.session-row .session-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.session-row .session-time {
  font-size: var(--fs-2xs);
  color: var(--muted);
  flex-shrink: 0;
}
/* Hover (or an open menu) swaps the timestamp for the three-dot menu button. */
.session-row .session-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin: -2px 0;
  border-radius: var(--radius-sm);
  color: var(--muted);
  flex-shrink: 0;
}
.session-row .session-menu-btn:hover {
  color: var(--text);
  background: var(--panel);
}
/* :focus-within (not :focus-visible): it holds while the kebab itself is
   focused — a row-only match would display:none the button mid-Tab and dump
   focus to <body>, making the menu keyboard-unreachable. */
.session-row:hover .session-menu-btn,
.session-row:focus-within .session-menu-btn,
.session-row.menu-open .session-menu-btn {
  display: inline-flex;
}
.session-row:hover .session-time,
.session-row:focus-within .session-time,
.session-row.menu-open .session-time {
  display: none;
}
.session-row .busy-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.2s infinite;
  flex-shrink: 0;
}
/* Turn held on an unanswered card: ready for the user — steady, no pulse. */
.session-row .busy-dot.waiting {
  animation: none;
}
/* Inline rename: the title span is replaced by an input sharing its box so the
   text doesn't jump. Take the row's full width and hide the kebab/time. */
.session-row .session-title-input {
  flex: 1;
  min-width: 0;
  padding: 1px 5px;
  margin: -2px 0;
  font: inherit;
  color: var(--text);
  background: var(--base);
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  outline: none;
}
.session-row.editing {
  background: var(--surface);
  cursor: default;
}
.session-row.editing .session-menu-btn,
.session-row.editing .session-time {
  display: none;
}
.chat-thread {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  /* stable: no shift when the bar appears; both-edges: keeps the column centered */
  scrollbar-gutter: stable both-edges;
}
.chat-thread-inner {
  max-width: var(--readable-col);
  margin: 0 auto;
  /* Bottom padding clears the composer's 24px fade so the last message stays
     fully legible when scrolled to the very bottom. */
  padding: 16px 16px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text);
  padding: 20px;
  text-align: center;
}
.chat-empty h2 {
  margin: 0;
  font-size: var(--fs-5xl);
  font-weight: var(--fw-display);
  letter-spacing: -0.02em;
  color: var(--text);
}
.chat-empty .chat-empty-hint {
  font-size: var(--fs-sm);
  color: var(--muted);
  max-width: 340px;
  text-align: center;
}
.chat-empty p {
  margin: 0;
  font-size: var(--fs-md);
  max-width: 320px;
}
/* one-click /reproduce-paper prefill for paper-born projects */
.chat-empty .chat-suggest {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  cursor: pointer;
  transition: border-color 120ms ease;
}
.chat-empty .chat-suggest:hover {
  border-color: var(--text);
}

/* Shown while an existing session's transcript is fetched, so switching
   sessions never flashes the empty state before its messages seed in. */
.chat-loading {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--subtext);
  font-size: var(--fs-xl);
  padding: 20px;
}
/* Larger, more visible wheel than the inline .spinner used in the thread. */
.chat-loading .spinner {
  width: 22px;
  height: 22px;
  border-width: 3px;
}

/* user message: a right-aligned rounded bubble, no border, no label */
.msg-user {
  align-self: flex-end;
  max-width: 88%;
  background: var(--surface);
  border-radius: 16px; /* chat bubble — deliberate outsized radius */
  padding: 10px 15px;
  font-size: var(--fs-md);
  white-space: pre-wrap;
  word-break: break-word;
}
.msg-images {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.msg-images img {
  max-width: 220px;
  max-height: 160px;
  border: 1px solid var(--border-variant);
  border-radius: var(--radius-xs);
  display: block;
}

.msg-assistant {
  font-size: var(--fs-base);
  line-height: 1.62;
  color: var(--text);
  min-width: 0;
}

.reasoning {
  color: var(--muted);
  font-size: var(--fs-sm);
  margin: 2px 0;
}
.reasoning summary {
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-weight: var(--fw-semibold);
}
.reasoning[open] {
  white-space: pre-wrap;
}

/* tool calls: bordered surface card, one row per call */
/* ---- tool calls: compact, coalesced, gray (Claude-desktop style) ---- */
.tool-group {
  margin: 2px 0;
}
.tool-group-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 3px 2px;
  cursor: pointer;
  color: var(--muted);
  font-size: var(--fs-md);
  text-align: left;
  border-radius: var(--radius-sm);
}
.tool-group-summary:hover {
  color: var(--subtext);
  background: var(--surface);
}
.tool-group.has-error .tool-group-summary {
  color: var(--accent-red);
}
.tool-chevron {
  flex-shrink: 0;
  color: var(--muted);
  transition: transform 0.12s ease;
}
.tool-chevron.open {
  transform: rotate(90deg);
}
.tool-group-rows {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin: 2px 0 4px 7px;
  padding-left: 10px;
  border-left: 1px solid var(--border-variant);
}
.tool-row {
  display: flex;
  flex-direction: column;
}
.tool-row summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 4px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  min-width: 0;
  border-radius: var(--radius-sm);
}
.tool-row summary:hover {
  background: var(--surface);
}
.tool-row summary::-webkit-details-marker {
  display: none;
}
.tool-line {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--fs-md);
  color: var(--subtext);
}
.tool-open {
  flex-shrink: 0;
  font-size: var(--fs-xs);
  color: var(--primary);
}
.tool-open:hover {
  text-decoration: underline;
}
.tool-status {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--muted);
}
.tool-status.running {
  background: var(--accent-amber);
  animation: pulse 1.2s ease-in-out infinite;
}
.tool-status.error {
  background: var(--accent-red);
}
.tool-detail {
  margin: 2px 0 4px 14px;
}
.tool-cmd-full {
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--text);
  background: var(--surface);
  border-radius: var(--radius-sm);
  white-space: pre-wrap;
  word-break: break-word;
}
.tool-output {
  margin-top: 3px;
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--subtext);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 260px;
  overflow-y: auto;
  background: var(--base);
  border: 1px solid var(--border-variant);
  border-radius: var(--radius-sm);
}
.working {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--subtext);
  font-size: var(--fs-md);
  padding: 2px 0 8px;
}
/* Turn held open on an unanswered card: waiting on the user, not the model. */
.working.awaiting {
  font-style: italic;
}

.spinner {
  width: 13px;
  height: 13px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

/* composer: rounded box and send button. Borderless like the header —
   the thread fades into the box through a gradient hanging above it. */
.composer {
  /* No top padding: the fade hanging above leads straight into the box. */
  padding: 0 12px 12px;
  flex-shrink: 0;
  position: relative;
  z-index: 4;
  background: var(--base);
  width: 100%;
  max-width: var(--readable-col);
  margin: 0 auto;
}
.composer::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  height: 24px;
  background: linear-gradient(to top, var(--base), transparent);
  pointer-events: none;
}
.composer-box {
  position: relative; /* anchors the slash-skill menu */
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--base);
}
.composer textarea {
  border: none;
  background: none;
  resize: none;
  padding: 10px 12px 4px;
  font-size: var(--fs-md);
  min-height: 42px;
  max-height: 180px;
}
/* pasted images waiting to be sent */
.composer-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 12px 0;
}
.attachment-thumb {
  position: relative;
}
.attachment-thumb img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: block;
}
.attachment-thumb button {
  position: absolute;
  top: -5px;
  right: -5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.attachment-thumb button:hover {
  background: var(--text);
  color: var(--base);
}
.composer-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  padding: 6px 8px 8px;
}
.send-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: var(--base);
  transition:
    background 100ms ease,
    opacity 100ms ease;
}
.send-btn:hover:not(:disabled) {
  background: color-mix(in oklab, var(--primary) 88%, var(--text));
}
.send-btn:disabled {
  opacity: 0.4;
  cursor: default;
}
.send-btn.stop {
  background: var(--surface);
  color: var(--text);
}
.send-btn.stop:hover:not(:disabled) {
  background: color-mix(in oklab, var(--surface) 88%, var(--text));
}

/* ---- markdown ---- */

.md {
  min-width: 0;
  word-break: break-word;
  color: var(--text);
  line-height: 1.62;
}
.md > *:first-child {
  margin-top: 0;
}
.md > *:last-child {
  margin-bottom: 0;
}
.md p {
  margin: 10px 0;
}
.md strong {
  color: var(--text);
  font-weight: var(--fw-semibold);
}
.md pre {
  background: var(--surface);
  border: 1px solid color-mix(in oklab, var(--border) 50%, transparent);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  overflow-x: auto;
  font-size: var(--fs-sm);
  color: var(--text);
}
.md code {
  font-family: var(--mono);
  font-size: 0.9em;
  font-weight: var(--fw-medium);
  color: var(--primary);
  background: var(--panel);
  border: 1px solid var(--border-variant);
  border-radius: var(--radius-xs);
  padding: 1px 5px;
}
/* KaTeX math — tame the library's 1.21em default so formulas sit at body
   size, and let wide display equations scroll instead of overflowing. */
.md .katex {
  font-size: 1.05em;
}
.md .katex-display {
  margin: 12px 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 2px 0;
}
/* File mention chip — reads as clickable inline code (thin border, panel
   fill, mono), matching openresearch.sh's FileMention. */
.md .file-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  max-width: 100%;
  margin: 0 1px;
  padding: 0 6px;
  vertical-align: baseline;
  font-family: var(--mono);
  font-size: 0.9em;
  font-weight: var(--fw-medium);
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border-variant);
  border-radius: var(--radius-xs);
  cursor: pointer;
}
.md .file-chip:hover:not(:disabled) {
  background: var(--surface);
  color: var(--primary);
}
.md .file-chip svg {
  flex: none;
  opacity: 0.6;
}
.md .file-chip-label {
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.md pre code {
  background: none;
  border: none;
  color: inherit;
  padding: 0;
  font-weight: var(--fw-regular);
}

.md-code {
  position: relative;
  margin: 10px 0;
}
.md-code pre {
  margin: 0;
}
.md-code-copy {
  position: absolute;
  top: 6px;
  right: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  color: var(--muted);
  background: var(--base);
  border: 1px solid var(--border-variant);
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity 0.12s ease, color 0.12s ease;
}
.md-code:hover .md-code-copy {
  opacity: 1;
}
.md-code-copy:hover {
  color: var(--text);
  border-color: var(--muted);
}

.md h1,
.md h2,
.md h3,
.md h4 {
  color: var(--text);
  font-size: 1.05em;
  font-weight: var(--fw-semibold);
  margin: 12px 0 6px;
}
.md ul,
.md ol {
  margin: 6px 0;
  padding-left: 22px;
}
.md li::marker {
  color: var(--primary);
}
.md a {
  color: var(--primary);
}
/* Same wide-table treatment as .report-md table: cells keep whole-word
   min-content widths (see .md td below), so an over-wide table scrolls in
   place instead of clipping at the pane edge. */
.md table {
  border-collapse: collapse;
  display: block;
  width: max-content;
  max-width: 100%;
  font-size: var(--fs-md);
  margin: 10px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow-x: auto;
}
.md th,
.md td {
  border-bottom: 1px solid var(--border-variant);
  padding: 8px 14px;
  text-align: left;
  color: var(--text);
  /* .md's word-break: break-word shrinks cell min-content width to one
     character, letting auto table layout split short words mid-word;
     overflow-wrap keeps full-word min-content and only breaks overflow. */
  word-break: normal;
  overflow-wrap: break-word;
}
.md tr:last-child td {
  border-bottom: none;
}
.md thead th {
  background: var(--surface);
  font-weight: var(--fw-medium);
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.md tbody tr:hover td {
  background: var(--surface-bright);
}
.md blockquote {
  margin: 6px 0;
  padding: 2px 0 2px 10px;
  border-left: 3px solid var(--border);
  color: var(--subtext);
}

/* ---- tree nodes (graph cards on the dotted canvas) ---- */

/* Cards must stay `selectable` (ReactFlow sets pointer-events:none on nodes
 * that are neither draggable nor selectable, which would kill the action
 * buttons) — but selection itself means nothing here, so suppress its
 * pointer cursor. Specificity beats RF's stylesheet. Focus/selected visuals
 * need no override: nodesFocusable={false} removes the tab stop, RF's own
 * CSS zeroes node focus outlines, and its .selected box-shadow only targets
 * built-in node types, not custom ones. */
.react-flow__node.react-flow__node-exp.selectable {
  cursor: default;
}
.exp-node {
  /* Keep in sync with NODE_W in TreeView.tsx (layout math uses it). */
  width: 264px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--base);
  padding: 10px 12px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  font-size: var(--fs-md);
  transition: box-shadow 120ms ease;
}
.exp-node:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
.exp-node.live {
  border-color: var(--accent-teal);
  box-shadow: 0 2px 12px rgba(32, 154, 132, 0.2);
}
.exp-node .node-eyebrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
  font-size: var(--fs-2xs);
  font-weight: var(--fw-medium);
  color: var(--muted);
}
.exp-node .node-head {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}
.exp-node .node-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.exp-node .node-slug {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.exp-node .node-title {
  margin-top: 4px;
  color: var(--text);
  font-size: var(--fs-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.exp-node .node-meta {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-2xs);
  color: var(--muted);
}
/* Direct view shortcuts (Changes / Logs) at the card's foot. */
.exp-node .node-actions {
  margin-top: 8px;
  padding-top: 6px;
  border-top: 1px solid var(--border-variant);
  display: flex;
  align-items: center;
  gap: 3px;
}
.exp-node .node-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  /* Tight: Changes + Logs + Code + the GitHub icon share one fixed-width row. */
  padding: 3px 6px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text);
  border-radius: var(--radius-sm);
  /* The GitHub shortcut is an <a> among sibling <button>s. */
  text-decoration: none;
}
.exp-node .node-action:hover {
  color: var(--text);
  background: var(--surface);
}
/* External GitHub shortcut: icon-only, pinned to the card's far edge. */
.exp-node .node-action-ext {
  margin-left: auto;
  padding: 3px 5px;
}

/* run-history squares (RUNS strip on node cards) */
.run-squares {
  display: flex;
  align-items: center;
  gap: 3px;
}
.run-sq {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
}
.run-sq.pass {
  background: var(--accent-green);
}
.run-sq.fail {
  border: 1.5px solid color-mix(in oklab, var(--accent-red) 55%, transparent);
}
.run-sq.live {
  background: var(--accent-teal);
  animation: pulse 1.2s ease-in-out infinite;
}
.run-sq.other {
  border: 1.5px solid var(--border);
}

.react-flow__handle {
  opacity: 0;
  pointer-events: none;
}
.react-flow__attribution {
  display: none !important;
}

/* ---- runs table ---- */

/* Runs table: a white card on the panel canvas, quiet separators. */
.runs-table-wrap {
  position: absolute;
  inset: 0;
  overflow: auto;
  padding: 12px;
}
.runs-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--fs-md);
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.runs-table th {
  text-align: left;
  color: var(--text);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--base);
  z-index: 1;
}
.runs-table td {
  padding: 8px 12px;
  border-bottom: 1px solid color-mix(in oklab, var(--text) 6%, transparent);
  white-space: nowrap;
}
.runs-table tr:last-child td {
  border-bottom: none;
}
.runs-table tr.clickable {
  cursor: pointer;
}
.runs-table tr.clickable:hover td {
  background: var(--canvas);
}
.mono {
  font-family: var(--mono);
  font-size: var(--fs-sm);
}

/* Instances tab: Running / Past section headers. */
.instances-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 22px 0 10px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
}
.instances-section-title .count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: var(--radius-md);
  background: var(--canvas);
  border: 1px solid var(--border);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text);
}
/* Normal-flow wrapper: the shared .runs-table-wrap is position:absolute (it
   fills the experiments panel); in the settings pane the table sits in flow and
   just needs horizontal-scroll safety on narrow viewports. */
.instances-table-wrap {
  overflow-x: auto;
}
/* In-flow empty state (the shared .empty-state is position:absolute and would
   cover the whole pane, overlapping the other section). */
.instances-empty {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--base);
  color: var(--subtext);
  font-size: var(--fs-md);
}

/* Badge plus the optional job-page link (HF only — Modal stores no URL). */
.backend-cell {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.backend-cell .icon-btn {
  width: 22px;
  height: 22px;
}

/* Backend cell: brand logo + name + flavor detail. */
.backend-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.backend-badge svg {
  flex: none;
  display: block;
}
.backend-badge .backend-name {
  font-weight: var(--fw-medium);
}
.backend-badge .backend-detail {
  color: var(--muted);
}
.backend-badge.muted {
  color: var(--muted);
}

/* ---- detail drawer ---- */

.drawer {
  position: absolute;
  inset: 0;
  background: var(--base);
  display: flex;
  flex-direction: column;
  z-index: 20;
}

/* No padding-top: it would hold sticky diff-file headers 18px below the top
   with scrolled content peeking through the gap. The first child carries the
   spacing as margin instead, which scrolls away with the content. */
.drawer-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.drawer-body > :first-child {
  margin-top: 18px;
}

.drawer-section h3 {
  margin: 0 0 10px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
}

.kv {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 14px;
  font-size: var(--fs-md);
}
.kv .k {
  color: var(--subtext);
}
.kv .v {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  word-break: break-all;
}

/* full-pane terminal view (mirror of openresearch.sh ExperimentFullView) */
.term-view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--base);
  z-index: 20;
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.term-title {
  min-width: 0;
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.term-bar .error {
  font-size: var(--fs-sm);
  color: var(--accent-red);
}
.term-bar .btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.term-fill {
  flex: 1;
  min-height: 0;
  background: var(--term-bg);
  padding: 4px 0 4px 6px;
}
.term-empty {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
  font-size: var(--fs-md);
  color: var(--muted);
}

/* run history dropdown */
.run-history {
  position: relative;
  flex-shrink: 0;
}
.run-picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--base);
  color: var(--text);
}
.run-picker:hover {
  background: var(--surface);
}
.run-picker .run-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
}
.run-picker-chev {
  color: var(--muted);
  flex-shrink: 0;
}
.history-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 230px;
  max-height: 320px;
  overflow-y: auto;
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  padding: 5px;
  z-index: 50;
}
.history-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  padding: 6px 8px;
  font-size: var(--fs-sm);
  border-radius: var(--radius-sm);
}
.history-item:hover {
  background: var(--surface);
}
.history-item.active {
  background: var(--surface);
}
.history-item .run-label {
  font-weight: var(--fw-semibold);
}
.history-item .when {
  margin-left: auto;
  font-size: var(--fs-xs);
  color: var(--muted);
}

/* commit picker (Changes tab) */
.changes-branch {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.commit-picker {
  display: flex;
  align-items: center;
  gap: 8px;
}
/* Tiny caption naming what a header control is (Branch / Commit / Source) —
 * two adjacent unlabeled monospace pickers are indistinguishable. */
.ctl-label {
  flex-shrink: 0;
  font-size: var(--fs-2xs);
  font-weight: var(--fw-medium);
  color: var(--subtext);
}
.commit-picker select {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: var(--fs-sm);
}
.uncommitted-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-purple);
  flex-shrink: 0;
}
.changes-note {
  font-size: var(--fs-sm);
  color: var(--muted);
}

.empty-state {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 24px;
  text-align: center;
  color: var(--subtext);
}
.empty-state p {
  max-width: 46ch;
  margin: 0;
  font-size: var(--fs-md);
  line-height: 1.5;
  text-wrap: balance;
}
.empty-state-cta {
  gap: 6px;
}
.empty-state p.empty-state-title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-regular);
  color: var(--text);
}
.empty-state p.empty-state-hint {
  font-size: var(--fs-lg);
  color: var(--subtext);
}

/* ---- first-run onboarding (rides the .home canvas) ---- */

.onboarding .home-inner {
  max-width: 560px;
  padding-top: 96px;
}
.onb-eyebrow {
  font-size: var(--fs-2xs);
  font-weight: var(--fw-semibold);
  color: var(--muted);
  margin-bottom: 14px;
}
.onb-title {
  margin: 0 0 6px;
  font-size: var(--fs-3xl);
  letter-spacing: -0.01em;
}
.onb-sub {
  color: var(--text);
  font-size: var(--fs-base);
  line-height: 1.55;
  margin: 0 0 22px;
  max-width: 480px;
}
.onb-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.onb-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
}
.onb-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.onb-card-name {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
}
.onb-card-detail {
  font-size: var(--fs-sm);
}
.onb-card-meta {
  font-size: var(--fs-sm);
  color: var(--subtext);
}
.onb-card-meta code {
  font-family: var(--mono);
  font-size: var(--fs-xs);
}
.onb-card-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: baseline;
  gap: 12px;
  padding: 3px 0;
}
.onb-loading {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--subtext);
  font-size: var(--fs-md);
  padding: 8px 0;
}
.onb-gh-options {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border-variant);
}
.onb-gh-option {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.onb-gh-option-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text);
}
.onb-gh-option-body {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.onb-gh-cmd {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  background: var(--panel);
  border: 1px solid var(--border-variant);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
}
.onb-gh-hint {
  font-size: var(--fs-sm);
  color: var(--subtext);
}
.onb-gh-hint code {
  font-family: var(--mono);
  font-size: var(--fs-xs);
}
.onb-gh-or {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: var(--fs-xs);
}
.onb-gh-or::before,
.onb-gh-or::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border-variant);
}
.onb-gh-option .onb-token-form {
  flex: 1;
  min-width: 0;
  margin-top: 0;
}
.onb-token-form {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.onb-token-form input {
  flex: 1;
  min-width: 220px;
  font-family: var(--mono);
  font-size: var(--fs-sm);
}
.onb-token-form a {
  font-size: var(--fs-sm);
  color: var(--subtext);
  white-space: nowrap;
}
.onb-token-form .error {
  flex-basis: 100%;
  color: var(--accent-red);
  font-size: var(--fs-md);
  white-space: pre-wrap;
}
.onb-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
}

/* new-project mode switch (existing repo vs blank repo) */
.form .form-seg {
  align-self: flex-start;
  margin-bottom: 2px;
}
.form .form-seg button {
  padding: 5px 12px;
}

/* repo parse feedback under the new-project repository input */
.form .repo-hint {
  font-family: var(--mono);
  font-weight: var(--fw-regular);
  font-size: var(--fs-xs);
  color: var(--muted);
}
.form .repo-hint.ok {
  color: var(--accent-teal);
}

/* new-project "from a paper": search results + selected-paper card */
.form .paper-results {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  max-height: 240px;
  overflow-y: auto;
}
.form .paper-results button {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 8px 10px;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border-variant);
  text-align: left;
  font: inherit;
  color: var(--text);
  cursor: pointer;
}
.form .paper-results button:last-child {
  border-bottom: none;
}
.form .paper-results button:hover {
  background: var(--surface);
}
.form .paper-results .title {
  font-size: var(--fs-md);
  font-weight: var(--fw-medium);
}
.form .paper-results .id,
.form .paper-pick .id {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--muted);
}
.form .paper-pick {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}
.form .paper-pick .meta {
  min-width: 0;
}
.form .paper-pick .title {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
}

/* ---- forms / modal ---- */

.form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: var(--fs-xs);
  color: var(--text);
  font-weight: var(--fw-medium);
}
.form .row2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.form .actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 6px;
}
.form .error,
.settings-card > .error {
  color: var(--accent-red);
  font-size: var(--fs-md);
  white-space: pre-wrap;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(29, 27, 26, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal {
  width: 480px;
  max-width: 94vw;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
  padding: 24px;
}
.modal h2 {
  margin: 0 0 14px;
  font-size: var(--fs-xl);
}

/* ---- settings ---- */

.settings-section + .settings-section {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.settings-section h3 {
  margin: 0 0 8px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
}

.settings-loading {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--subtext);
  font-size: var(--fs-md);
  padding: 4px 0;
}

.settings-note {
  margin: 10px 0 0;
  font-size: var(--fs-sm);
  padding: 8px 10px;
  border: 1px solid var(--accent-amber);
  border-radius: var(--radius-md);
  background: var(--accent-amber-subtle);
  color: var(--accent-amber);
  font-weight: var(--fw-medium);
}

/* Determinate progress bar (data-dir move). */
.progress {
  margin: 12px 0 4px;
}
.progress-track {
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: width 0.2s ease;
}
.progress-caption {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: var(--fs-sm);
  color: var(--muted);
}

.settings-form {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.badge {
  display: inline-flex;
  align-items: center;
  /* Explicit sans so badges nested in mono contexts (.kv .v) don't inherit. */
  font-family: var(--sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  padding: 1px 7px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
}
.badge.ok {
  color: var(--accent-green);
  border-color: var(--accent-green);
  background: var(--accent-green-subtle);
}
.badge.err {
  color: var(--accent-red);
  border-color: var(--accent-red);
  background: var(--accent-red-subtle);
}
.badge.warn {
  color: var(--accent-amber);
  border-color: var(--accent-amber);
  background: var(--accent-amber-subtle);
}

/* ---- files tab ---- */

/* ---- Files tab: split explorer — tree on the left, inline preview right ---- */
.files-tab {
  height: 100%;
  min-height: 0;
  display: flex;
  background: var(--base);
}
.files-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 7px 11px;
  background: var(--base);
  color: var(--text);
  text-decoration: none;
}
.files-pill code {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
/* Direct children only — the copy .icon-btn manages its own icon color. */
.files-pill > svg {
  flex-shrink: 0;
  color: var(--muted);
}
a.files-pill:hover {
  border-color: var(--muted);
}

/* Left pane: the file tree, with the dir-path footer pinned under it.
   Shares the preview's base background — one surface, split by a hairline —
   so it reads as a file browser, not a stray colored strip. */
.ftree-pane {
  position: relative;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-left: 1px solid var(--border-variant);
  border-right: 1px solid var(--border-variant);
  background: var(--base);
}
/* Invisible grab strip straddling the tree/preview divider. */
.ftree-resizer {
  position: absolute;
  right: -3px;
  top: 0;
  bottom: 0;
  width: 6px;
  cursor: col-resize;
  z-index: 30;
}
.ftree-resizer:hover,
.ftree-resizer:active {
  background: color-mix(in oklab, var(--text) 12%, transparent);
}
.ftree-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 10px 8px;
}
.ft-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.ft-row:hover {
  background: var(--surface);
}
.ft-row.selected,
.ft-row.selected:hover {
  background: var(--panel);
}
.ft-chevron {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--muted);
  transition: transform 0.12s ease;
}
.ft-chevron.open {
  transform: rotate(90deg);
}
.ft-chevron.spacer {
  visibility: hidden;
}
.ft-title {
  flex: 1;
  min-width: 0;
  font-size: var(--fs-md);
  font-weight: var(--fw-medium);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ft-dirname,
.ft-name {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: var(--fs-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ft-dirname {
  color: var(--text);
}
.ft-thumb {
  width: 18px;
  height: 18px;
  object-fit: cover;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-variant);
  flex-shrink: 0;
}
.ft-divider {
  padding: 12px 8px 4px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--muted);
}
/* The files-dir path — demoted from header pills to a quiet footer. */
.ftree-footer {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 5px 8px;
  border-top: 1px solid var(--border-variant);
}
.ftree-footer code {
  flex: 1;
  min-width: 0;
  /* RTL ellipsis trick: keep the tail of the path visible, elide the front. */
  direction: rtl;
  text-align: left;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ftree-footer .icon-btn {
  width: 22px;
  height: 22px;
}

/* Right pane: the selected entry, rendered inline. */
.fpreview {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--base);
}
.fpreview-none {
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: var(--fs-md);
  color: var(--muted);
}
.fpreview-head {
  height: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border-bottom: 1px solid var(--border-variant);
  color: var(--subtext);
  flex-shrink: 0;
}
.fpreview-path {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fpreview-date,
.fpreview-size {
  font-size: var(--fs-xs);
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.fpreview-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
}
/* Documents (reports, markdown) read as a centered readable column. */
.fpreview-body.doc {
  padding: 18px 28px 48px;
}
.fpreview-body.doc .report-md {
  max-width: var(--readable-col);
  margin: 0 auto;
}
.fpreview-image {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px;
}
.fpreview-image img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.fpreview-pdf {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Whole-tab empty state: what this tab is for, plus the drop-in path. */
.files-empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 24px;
  text-align: center;
  color: var(--muted);
}
.files-empty-state h3 {
  margin: 6px 0 0;
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--text);
}
.files-empty-state p {
  margin: 0;
  max-width: 420px;
  font-size: var(--fs-md);
  line-height: 1.55;
  color: var(--subtext);
}
.files-empty-state .ftree-footer {
  margin-top: 10px;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  background: var(--base);
}
.files-empty-state .ftree-footer code {
  max-width: 380px;
}
.files-truncated {
  margin: 0;
  padding: 8px 14px;
  font-size: var(--fs-xs);
  color: var(--muted);
}
/* Reports are long-form documents, so preserve their Markdown hierarchy.
   The shared .md rules intentionally keep chat headings compact. */
.report-md {
  font-size: var(--fs-lg);
}
.report-md h1 {
  font-size: 2em;
  line-height: 1.18;
  margin: 28px 0 14px;
}
.report-md h2 {
  font-size: 1.5em;
  line-height: 1.25;
  margin: 28px 0 10px;
}
.report-md h3 {
  font-size: 1.2em;
  line-height: 1.35;
  margin: 22px 0 8px;
}
.report-md h4 {
  font-size: 1em;
  line-height: 1.4;
  margin: 18px 0 6px;
}
/* Wide GFM tables scroll in place instead of widening the report pane. */
.report-md table {
  display: block;
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
}
.report-md .report-img {
  display: block;
  margin: 12px 0;
}
.report-md .report-img img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.report-md .report-img-caption {
  display: block;
  margin-top: 4px;
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--subtext);
}

/* ---- diff view (react-diff-view; mirrors .openresearch-diff) ---- */

.openresearch-diff {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.diff-file-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--base);
}
/* The header owns the card's rounded top outline (overlaid on the card
   border via -1px margins) so it still looks like a rounded card top while
   stuck — the card's own border scrolls away with the card. Painted via two
   layered pseudo-elements because negative-z children cover the element's own
   background/border: a square white mask below (hides code scrolling past the
   corner notches), the rounded bordered surface above it, text on top. */
.diff-file-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: -1px -1px 0;
  width: calc(100% + 2px);
  text-align: left;
  padding: 8px 12px;
  cursor: pointer;
}
.diff-file-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: var(--base);
}
.diff-file-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.diff-file-header .chev {
  color: var(--muted);
  font-size: var(--fs-2xs);
  flex-shrink: 0;
  width: 12px;
}
.diff-file-header .path {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
}
.diff-file-header .path code {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text);
}
.diff-file-header .stats {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: var(--fs-2xs);
  font-weight: var(--fw-medium);
  font-variant-numeric: tabular-nums;
}
.diff-stat-add {
  color: var(--accent-green);
}
.diff-stat-del {
  color: var(--accent-red);
}
.diff-empty {
  padding: 8px 12px;
  color: var(--muted);
  font-size: var(--fs-md);
}

.truncated-notice {
  border: 1px solid var(--accent-amber);
  border-radius: var(--radius-md);
  background: var(--accent-amber-subtle);
  padding: 12px 14px;
  font-size: var(--fs-md);
}
.truncated-notice h4 {
  margin: 0 0 4px;
  font-size: var(--fs-md);
  color: var(--accent-amber);
}
.truncated-notice p {
  margin: 0;
  color: var(--subtext);
}

.openresearch-diff .openresearch-diff-file {
  --openresearch-diff-selection-background-color: color-mix(
    in oklab,
    var(--surface) 76%,
    var(--primary)
  );
  --openresearch-diff-gutter-selection-background-color: color-mix(
    in oklab,
    var(--surface) 68%,
    var(--primary)
  );
  /* GitHub-strength washes: the tint should read as a highlight, not paint. */
  --openresearch-diff-insert-gutter-background-color: color-mix(
    in oklab,
    var(--base) 84%,
    var(--accent-green)
  );
  --openresearch-diff-delete-gutter-background-color: color-mix(
    in oklab,
    var(--base) 86%,
    var(--accent-red)
  );
  --openresearch-diff-insert-code-background-color: color-mix(
    in oklab,
    var(--base) 91%,
    var(--accent-green)
  );
  --openresearch-diff-delete-code-background-color: color-mix(
    in oklab,
    var(--base) 92%,
    var(--accent-red)
  );
  --openresearch-diff-insert-edit-background-color: color-mix(
    in oklab,
    var(--base) 72%,
    var(--accent-green)
  );
  --openresearch-diff-delete-edit-background-color: color-mix(
    in oklab,
    var(--base) 78%,
    var(--accent-red)
  );
  --openresearch-diff-divider-color: var(--border);
  --openresearch-diff-omit-gutter-line-color: color-mix(in oklab, var(--base) 86%, var(--text));
  --openresearch-diff-unified-gutter-text-color: color-mix(in oklab, var(--text) 45%, var(--base));

  --diff-background-color: var(--base);
  --diff-text-color: var(--text);
  --diff-font-family: var(--mono);
  --diff-selection-text-color: var(--primary);
  --diff-selection-background-color: var(--openresearch-diff-selection-background-color);
  --diff-gutter-selected-text-color: var(--diff-selection-text-color);
  --diff-gutter-selected-background-color: var(
    --openresearch-diff-gutter-selection-background-color
  );
  --diff-code-selected-text-color: var(--diff-selection-text-color);
  --diff-code-selected-background-color: var(--diff-selection-background-color);
  --diff-gutter-insert-text-color: var(--accent-green);
  --diff-gutter-insert-background-color: var(--openresearch-diff-insert-gutter-background-color);
  --diff-gutter-delete-text-color: var(--accent-red);
  --diff-gutter-delete-background-color: var(--openresearch-diff-delete-gutter-background-color);
  --diff-code-insert-text-color: var(--diff-text-color);
  --diff-code-insert-background-color: var(--openresearch-diff-insert-code-background-color);
  --diff-code-delete-text-color: var(--diff-text-color);
  --diff-code-delete-background-color: var(--openresearch-diff-delete-code-background-color);
  --diff-code-insert-edit-text-color: var(--diff-text-color);
  --diff-code-insert-edit-background-color: var(--openresearch-diff-insert-edit-background-color);
  --diff-code-delete-edit-text-color: var(--diff-text-color);
  --diff-code-delete-edit-background-color: var(--openresearch-diff-delete-edit-background-color);
  --diff-omit-gutter-line-color: var(--openresearch-diff-omit-gutter-line-color);

  width: 100%;
  font-size: var(--fs-sm);
  line-height: 1.5;
}

.openresearch-diff .openresearch-diff-file.diff-unified {
  table-layout: auto;
}
.openresearch-diff .openresearch-diff-file.diff-unified .diff-line > td:first-child {
  display: none;
}
.openresearch-diff .openresearch-diff-file.diff-unified .diff-line > td:nth-child(2) {
  width: 0%;
  padding: 0 0.5rem 0 0.625rem;
  white-space: nowrap;
  text-align: right;
  color: var(--openresearch-diff-unified-gutter-text-color);
  border-right: 1px solid var(--openresearch-diff-divider-color);
  user-select: none;
  cursor: default;
}
.openresearch-diff .openresearch-diff-file .diff-line {
  line-height: 1.5;
}
.openresearch-diff .openresearch-diff-file .diff-hunk + .diff-hunk .diff-line:first-child > td {
  border-top: 1px solid var(--openresearch-diff-divider-color);
}

/* prism token colors (One Light / One Dark, same hexes as openresearch.sh) */
/* prettier-ignore */
:is(.md, .openresearch-diff, .file-view) .token.comment,
:is(.md, .openresearch-diff, .file-view) .token.prolog,
:is(.md, .openresearch-diff, .file-view) .token.cdata { font-style: italic; color: #a0a1a7; }
:is(.md, .openresearch-diff, .file-view) .token.punctuation { color: #383a42; }
:is(.md, .openresearch-diff, .file-view) .token.property,
:is(.md, .openresearch-diff, .file-view) .token.tag,
:is(.md, .openresearch-diff, .file-view) .token.deleted { color: #e45649; }
:is(.md, .openresearch-diff, .file-view) .token.constant,
:is(.md, .openresearch-diff, .file-view) .token.symbol,
:is(.md, .openresearch-diff, .file-view) .token.boolean,
:is(.md, .openresearch-diff, .file-view) .token.number { color: #986801; }
:is(.md, .openresearch-diff, .file-view) .token.selector,
:is(.md, .openresearch-diff, .file-view) .token.attr-name,
:is(.md, .openresearch-diff, .file-view) .token.char,
:is(.md, .openresearch-diff, .file-view) .token.inserted,
:is(.md, .openresearch-diff, .file-view) .token.string { color: #50a14f; }
:is(.md, .openresearch-diff, .file-view) .token.builtin { color: #c18401; }
:is(.md, .openresearch-diff, .file-view) .token.operator,
:is(.md, .openresearch-diff, .file-view) .token.entity,
:is(.md, .openresearch-diff, .file-view) .token.url { color: #56b6c2; }
:is(.md, .openresearch-diff, .file-view) .token.atrule,
:is(.md, .openresearch-diff, .file-view) .token.attr-value { color: #986801; }
:is(.md, .openresearch-diff, .file-view) .token.keyword { color: #a626a4; }
:is(.md, .openresearch-diff, .file-view) .token.function,
:is(.md, .openresearch-diff, .file-view) .token.decorator,
:is(.md, .openresearch-diff, .file-view) .token.def { color: #4078f2; }
:is(.md, .openresearch-diff, .file-view) .token.class-name,
:is(.md, .openresearch-diff, .file-view) .token.namespace { color: #c18401; }
:is(.md, .openresearch-diff, .file-view) .token.regex { color: #50a14f; }
:is(.md, .openresearch-diff, .file-view) .token.important,
:is(.md, .openresearch-diff, .file-view) .token.variable { color: #e45649; }
:is(.md, .openresearch-diff, .file-view) .token.parameter { color: #383a42; }

@media (prefers-color-scheme: dark) {
  :is(.md, .openresearch-diff, .file-view) .token.comment,
  :is(.md, .openresearch-diff, .file-view) .token.prolog,
  :is(.md, .openresearch-diff, .file-view) .token.cdata { font-style: italic; color: #7f848e; }
  :is(.md, .openresearch-diff, .file-view) .token.punctuation { color: #abb2bf; }
  :is(.md, .openresearch-diff, .file-view) .token.property,
  :is(.md, .openresearch-diff, .file-view) .token.tag,
  :is(.md, .openresearch-diff, .file-view) .token.deleted { color: #e06c75; }
  :is(.md, .openresearch-diff, .file-view) .token.constant,
  :is(.md, .openresearch-diff, .file-view) .token.symbol,
  :is(.md, .openresearch-diff, .file-view) .token.boolean,
  :is(.md, .openresearch-diff, .file-view) .token.number { color: #d19a66; }
  :is(.md, .openresearch-diff, .file-view) .token.selector,
  :is(.md, .openresearch-diff, .file-view) .token.attr-name,
  :is(.md, .openresearch-diff, .file-view) .token.char,
  :is(.md, .openresearch-diff, .file-view) .token.inserted,
  :is(.md, .openresearch-diff, .file-view) .token.string { color: #98c379; }
  :is(.md, .openresearch-diff, .file-view) .token.builtin { color: #e5c07b; }
  :is(.md, .openresearch-diff, .file-view) .token.operator,
  :is(.md, .openresearch-diff, .file-view) .token.entity,
  :is(.md, .openresearch-diff, .file-view) .token.url { color: #56b6c2; }
  :is(.md, .openresearch-diff, .file-view) .token.atrule,
  :is(.md, .openresearch-diff, .file-view) .token.attr-value { color: #d19a66; }
  :is(.md, .openresearch-diff, .file-view) .token.keyword { color: #c678dd; }
  :is(.md, .openresearch-diff, .file-view) .token.function,
  :is(.md, .openresearch-diff, .file-view) .token.decorator,
  :is(.md, .openresearch-diff, .file-view) .token.def { color: #61afef; }
  :is(.md, .openresearch-diff, .file-view) .token.class-name,
  :is(.md, .openresearch-diff, .file-view) .token.namespace { color: #e5c07b; }
  :is(.md, .openresearch-diff, .file-view) .token.regex { color: #98c379; }
  :is(.md, .openresearch-diff, .file-view) .token.important,
  :is(.md, .openresearch-diff, .file-view) .token.variable { color: #e06c75; }
  :is(.md, .openresearch-diff, .file-view) .token.parameter { color: #abb2bf; }
}

/* ---- settings sections (shown in the middle pane, picked from the rail) ---- */

/* Like .chat-thread: the scroller spans the pane so its scrollbar sits at the
   pane's right edge, and .settings-view re-applies the readable width. */
.settings-view-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-gutter: stable both-edges;
}
.settings-view {
  max-width: var(--readable-col);
  margin: 0 auto;
  padding: 24px 32px 60px;
}
.settings-view h1 {
  margin: 0 0 6px;
  font-size: var(--fs-3xl);
}
.settings-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.settings-head-row h1 {
  margin: 0;
}
/* Errors shown directly in a settings tab (outside a .form wrapper), e.g. the
   Instances load error. Mirrors `.form .error`. */
.settings-view > .error {
  color: var(--accent-red);
  font-size: var(--fs-md);
  white-space: pre-wrap;
  margin: 0 0 12px;
}
.settings-sub {
  margin: 0 0 18px;
  color: var(--text);
  font-size: var(--fs-md);
}
.settings-card {
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  margin-bottom: 16px;
}
.settings-card h3 {
  margin: 0 0 10px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
}
.settings-card .settings-sub {
  margin-bottom: 12px;
}
.settings-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.settings-card .kv {
  gap: 6px 18px;
}
.settings-empty {
  color: var(--muted);
  font-size: var(--fs-md);
  margin: 4px 0 0;
}
.muted {
  color: var(--muted);
}

/* compute target list (Settings → Compute) */
.compute-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}
.compute-row {
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.compute-row-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  user-select: none;
}
.compute-row-head:hover {
  background: var(--surface);
  border-radius: var(--radius-lg);
}
.compute-row.open .compute-row-head:hover {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.compute-row-logo {
  display: inline-flex;
  align-items: center;
  flex: none;
}
.compute-row-name {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--text);
  flex: none;
}
.compute-row-summary {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
  font-size: var(--fs-sm);
}
.compute-row-head .badge,
.compute-make-default,
.compute-default-pill {
  flex: none;
}
/* Rendered as `badge compute-default-pill` — only the accent color differs. */
.compute-default-pill {
  color: var(--primary);
  border-color: var(--primary);
}
.compute-chevron-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  padding: 2px;
  border-radius: var(--radius-sm);
}
.compute-chevron-btn:hover {
  background: var(--panel);
}
.compute-chevron {
  color: var(--muted);
  transition: transform 120ms ease;
}
.compute-row.open .compute-chevron {
  transform: rotate(180deg);
}
.compute-row-body {
  border-top: 1px solid var(--border);
  padding: 14px;
}
.compute-row-body .settings-card {
  margin-bottom: 0;
  margin-top: 14px;
}
.compute-default-note {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.compute-flavor-form {
  margin-bottom: 14px;
}
.compute-flavor-form label {
  max-width: 320px;
}
.compute-flavor-hint {
  font-size: var(--fs-sm);
}
/* Standing disclosure, not a warning — quiet muted text, no amber callout. */
.compute-footnote {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin: 2px 0 0;
  font-size: var(--fs-sm);
  color: var(--muted);
}
.compute-footnote svg {
  flex: none;
  margin-top: 1px; /* optical align with the first text line */
}

/* harness sub-tabs */
.harness-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-variant);
}
.harness-tabs button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--text);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.harness-tabs button:hover {
  color: var(--text);
}
.harness-tabs button.active {
  border-bottom-color: var(--primary);
}
.harness-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
}
.harness-dot.ok {
  background: var(--accent-green);
}
.harness-dot.err {
  background: var(--accent-red);
}
.harness-dot.warn {
  background: var(--accent-amber);
}

/* env var table — fixed layout so buttons appearing never reflow columns */
.env-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-md);
  table-layout: fixed;
}
.env-table td:first-child {
  width: 32%;
  overflow-wrap: anywhere;
}
.env-table .badge {
  margin-left: 8px;
}
/* inline edit/add inputs read as table cells, not boxes; the underline is the
   focus indicator the removed border would otherwise provide */
.env-table input {
  width: 100%;
  border: none;
  background: transparent;
  padding: 0;
}
.env-table input:focus {
  box-shadow: 0 1px 0 0 var(--text);
}
/* fixed row height: inline inputs and buttons appear without shifting rows */
.env-table td {
  height: 36px;
  padding: 0 10px 0 0;
  vertical-align: middle;
  border-bottom: 1px solid var(--border-variant);
}
.env-table td:last-child {
  width: 116px;
  white-space: nowrap;
  text-align: right;
}
/* a full-width colspan cell (hint row) is also :last-child — undo the
   action-column styling so the note wraps and aligns normally */
.env-table td[colspan] {
  white-space: normal;
  text-align: left;
}
.env-table .icon-btn {
  margin-left: 8px;
  vertical-align: middle;
}
.env-table .icon-btn:hover {
  color: var(--accent-red);
}

/* k8s flavor table (Settings → Compute) */
.flavor-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-md);
}
.flavor-table th {
  padding: 5px 10px 5px 0;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-weight: var(--fw-medium);
  color: var(--text);
}
.flavor-table td {
  padding: 5px 10px 5px 0;
  border-bottom: 1px solid var(--border-variant);
}

/* ssh hosts table — fixed layout with anywhere-wrapping so long aliases and
   key paths can never push the action column outside the card. Widths track
   the column order in SshSection: host, address, identity (flex), status,
   test button. */
.ssh-table {
  table-layout: fixed;
}
.ssh-table th:nth-child(1) {
  width: 20%; /* host */
}
.ssh-table th:nth-child(2) {
  width: 26%; /* address */
}
.ssh-table th:nth-child(4) {
  width: 108px; /* status */
}
.ssh-table th:nth-child(5) {
  width: 52px; /* test button */
}
.ssh-table td {
  overflow-wrap: anywhere;
}
.ssh-table td:last-child {
  padding-right: 0;
  text-align: right;
}
.ssh-tested-at {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: var(--fs-xs);
}

@keyframes settings-spin {
  to {
    transform: rotate(360deg);
  }
}
.spin {
  animation: settings-spin 0.9s linear infinite;
}

/* ---- composer model picker ---- */

.model-picker,
.option-picker {
  position: relative;
  display: inline-flex;
}
/* Boxed composer control (permission mode, model). */
.composer-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--fs-sm);
  color: var(--text);
  padding: 5px 8px;
  border-radius: var(--radius-sm);
}
.composer-pill:hover {
  background: var(--surface);
  color: var(--text);
}
/* Text-only composer control (reasoning level) — sits beside the model label. */
.composer-bare {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: var(--fs-sm);
  color: var(--text);
  padding: 5px 4px;
  border-radius: var(--radius-sm);
}
.composer-bare:hover {
  color: var(--text);
}
.model-menu,
.option-menu {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  max-height: 380px;
  display: flex;
  flex-direction: column;
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  z-index: 50;
  overflow: hidden;
}
.model-menu {
  width: 320px;
}
.option-menu {
  min-width: 190px;
  padding: 6px;
}
/* Context-window meter: ring trigger + title/value head over a thin bar. */
.composer-bare.context-ring {
  display: inline-flex;
  align-items: center;
  margin-right: 8px;
}
.context-meter-menu {
  width: 280px;
  padding: 10px 12px 12px;
}
.context-meter-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-size: var(--fs-sm);
  color: var(--muted);
}
.context-meter-value {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.context-meter-menu .progress {
  margin: 8px 0 0;
}
.context-meter-menu .progress-track {
  height: 5px;
  border: none;
  background: var(--border);
}
/* Right-anchored menus (bottom-right controls) open toward the left edge. */
.model-menu.align-right,
.option-menu.align-right {
  left: auto;
  right: 0;
}
/* Rail menus open downward (composer menus open upward, above the box). */
.option-menu.drop-down {
  bottom: auto;
  top: calc(100% + 4px);
}
/* Session kebab menu: anchored to the row, hugging its right edge. Absolute
   inside the scrolling rail, so near the list's bottom it extends the scroll
   area instead of overlaying — acceptable while lists stay short; a portal or
   upward flip is the fix if that changes. */
.option-menu.session-menu {
  left: auto;
  right: 6px;
  top: calc(100% - 2px);
  min-width: 140px;
}
.model-item.danger,
.model-item.danger:hover {
  color: var(--accent-red);
}
/* "· Default" note on the pinned default row. */
.option-default {
  color: var(--muted);
  font-weight: var(--fw-regular);
}
/* Separator under the default row. */
.option-sep {
  height: 1px;
  margin: 5px 4px;
  background: var(--border-variant);
}
/* Right-aligned 1-based number hints in the mode menu. */
.option-num {
  color: var(--muted);
  font-size: var(--fs-xs);
  font-variant-numeric: tabular-nums;
}
.model-menu input {
  border: none;
  border-bottom: 1px solid var(--border-variant);
  background: none;
  padding: 9px 12px;
  font-size: var(--fs-md);
  outline: none;
}
.model-menu-list {
  overflow-y: auto;
  padding: 6px;
}
.model-group {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--muted);
  padding: 8px 8px 4px;
}
.model-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  text-align: left;
  padding: 6px 8px;
  font-size: var(--fs-md);
  border-radius: var(--radius-sm);
}
.model-item:hover {
  background: var(--surface);
}
.model-item .model-id {
  display: block;
  font-family: var(--mono);
  font-size: var(--fs-2xs);
  color: var(--muted);
}
.model-more {
  padding: 4px 8px 8px;
  font-size: var(--fs-xs);
  color: var(--muted);
}
/* Mid-session footer: the harness is fixed, so only its models are offered. */
.model-locked-note {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: var(--fs-xs);
  color: var(--muted);
  border-top: 1px solid var(--border-variant);
}
.model-locked-note svg {
  flex-shrink: 0;
}

/* ---- composer slash-skill menu ---- */

.skill-menu {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  min-width: 340px;
  max-width: 100%;
  padding: 6px;
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  z-index: 50;
  overflow: hidden;
}
.skill-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  text-align: left;
  padding: 7px 8px;
  border-radius: var(--radius-sm);
}
.skill-item.active {
  background: var(--surface);
}
.skill-item .skill-name {
  font-size: var(--fs-sm);
}
.skill-item .skill-hint {
  color: var(--muted);
}
.skill-item .skill-desc {
  font-size: var(--fs-xs);
  color: var(--subtext);
}

/* Command chip — the picked slash-skill, rendered as a unit in the composer
   (removable) and echoed in sent user bubbles (inert). */
.skill-chip {
  display: inline-flex;
  align-items: center;
  padding: 1px 7px;
  font-family: var(--mono);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--primary);
  background: var(--primary-subtle);
  border: 1px solid var(--border-variant);
  border-radius: var(--radius-sm);
}
/* The chip overlays the textarea's first line, Claude-desktop style; the
   textarea's first line is indented past it (inline text-indent, measured
   from the chip's width), so wrapped args flow full-width beneath the chip. */
.composer-input {
  position: relative;
  display: flex;
  /* Clips the chip once the textarea scrolls it out of the first line. */
  overflow: hidden;
}
.composer-input textarea {
  flex: 1;
}
.composer-chip {
  position: absolute;
  /* Sit on the textarea's first text line (10px top padding, --fs-md text)
     despite the chip's smaller --fs-sm body. */
  top: 9px;
  left: 12px;
  z-index: 1;
  /* Inert like inline text — clicks land in the textarea underneath. */
  pointer-events: none;
}
.msg-user .skill-chip {
  margin-right: 2px;
  vertical-align: baseline;
}

/* --- file viewer (right-pane tab opened from chat tool rows) ------------- */


.file-view {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}
.file-view-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border-bottom: 1px solid var(--border-variant);
  color: var(--text);
  flex-shrink: 0;
}
.file-view-path {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
/* Branch badge on committed-state file views (code browser in branch mode) —
   a plain source label, not a BranchPill: the header shouldn't grow a second
   navigation affordance next to the path. */
.file-view-ref {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--muted);
  border: 1px solid var(--border-variant);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex-shrink: 0;
}
.file-view-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--base);
}
/* Gutter + code share one row so line numbers track content rows 1:1 — the
   code never soft-wraps (min-width: max-content), so line N is row N. */
.file-view-codewrap {
  display: flex;
  align-items: flex-start;
  min-width: max-content;
}
/* Identical font metrics + vertical padding are the 1:1 row-alignment
   invariant — one rule so they can't drift apart. */
.file-view-gutter,
.file-view-code {
  margin: 0;
  padding-top: 14px;
  padding-bottom: 14px;
  font-family: var(--mono);
  font-size: var(--fs-sm);
  line-height: 1.55;
}
.file-view-gutter {
  padding-left: 14px;
  padding-right: 10px;
  text-align: right;
  color: var(--muted);
  user-select: none;
  /* Stay visible while the code scrolls horizontally. */
  position: sticky;
  left: 0;
  background: var(--base);
  border-right: 1px solid var(--border-variant);
  flex-shrink: 0;
}
.file-view-code {
  padding-left: 16px;
  padding-right: 16px;
  tab-size: 4;
  min-width: max-content;
}
.file-view-note {
  padding: 10px 16px;
  font-size: var(--fs-sm);
  color: var(--muted);
}

/* Rendered markdown files (.md tabs) — doc-sized type over the chat .md base. */
.file-view-md {
  max-width: var(--readable-col);
  padding: 18px 20px 32px;
}
.file-view-md .md {
  font-size: var(--fs-base);
}
.file-view-md .md h1 {
  font-size: 1.5em;
  margin: 18px 0 8px;
}
.file-view-md .md h2 {
  font-size: 1.25em;
  margin: 16px 0 8px;
}
.file-view-md .md h3 {
  font-size: 1.1em;
}

.icon-btn.active {
  color: var(--primary);
  background: var(--surface);
}

/* --- interactive prompt cards (plan / permission / question) ------------------
   Emitted by the harness when the agent asks for a plan approval, a permission,
   or a choice. Kept quiet: a hairline border, a thin per-kind left accent, no
   shadow — it should read as an inline aside, not a callout that shouts. */
.prompt-card {
  margin: 8px 0;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.prompt-card.plan {
  border-left-color: var(--accent-blue);
}
.prompt-card.permission {
  border-left-color: var(--accent-amber);
}
.prompt-card.question {
  border-left-color: var(--accent-purple);
}
/* A card in a read-only host (no respond handler): muted, buttons disabled.
   Resolved cards never render as .prompt-card at all — permission cards
   vanish, plan/question cards collapse to .prompt-collapsed rows. */
.prompt-card.readonly {
  opacity: 0.6;
}

.prompt-head {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text);
}
.prompt-head code {
  font-family: var(--mono);
  font-size: var(--fs-sm);
  color: var(--text);
}
.prompt-sub {
  font-size: var(--fs-sm);
  color: var(--subtext);
  word-break: break-word;
}
.prompt-q {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  line-height: 1.5;
  color: var(--text);
}
.prompt-plan {
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text);
  max-height: 340px;
  overflow-y: auto;
}

/* Question options: each is a full-width button with the label on its own line
   and the (optional) description block beneath it — never inline, or the two
   run together ("labelDescription…"). */
.prompt-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.prompt-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  width: 100%;
  padding: 8px 11px;
  text-align: left;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--base);
  color: var(--text);
  cursor: pointer;
  transition:
    border-color 80ms ease,
    background 80ms ease;
}
.prompt-option:hover:not(:disabled) {
  border-color: var(--border-strong);
  background: var(--surface);
}
.prompt-option.sel {
  border-color: var(--primary);
  background: var(--primary-subtle);
}
.prompt-option:disabled {
  cursor: default;
}
.prompt-option-label {
  display: block;
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
}
.prompt-option-desc {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-regular);
  line-height: 1.45;
  color: var(--subtext);
}

/* Action row (plan approve / permission allow-deny / multi-select submit). */
.prompt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.prompt-actions .btn-primary,
.prompt-actions .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background 80ms ease,
    border-color 80ms ease;
}
.prompt-actions .btn-primary {
  background: var(--primary);
  color: var(--base);
}
.prompt-actions .btn-primary:hover:not(:disabled) {
  opacity: 0.9;
}
.prompt-actions .btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--subtext);
}
.prompt-actions .btn-ghost:hover:not(:disabled) {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--surface);
}
.prompt-actions button:disabled {
  opacity: 0.5;
  cursor: default;
}

/* Resolved plan/question cards collapse to a one-line expandable row at their
   chronological position (Claude-desktop style); resolved permission cards
   render nothing at all. Same visual family as `.reasoning`. */
.prompt-collapsed {
  color: var(--muted);
  font-size: var(--fs-md);
  margin: 4px 0;
}
.prompt-collapsed summary {
  display: flex;
  align-items: baseline;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.prompt-collapsed summary::-webkit-details-marker {
  display: none;
}
.prompt-collapsed summary::after {
  content: "›";
  color: var(--muted);
  transition: transform 80ms ease;
}
.prompt-collapsed[open] summary::after {
  transform: rotate(90deg);
}
.prompt-collapsed-title {
  font-weight: var(--fw-semibold);
  word-break: break-word;
}
.prompt-outcome {
  font-size: var(--fs-sm);
  color: var(--subtext);
  word-break: break-word;
}
.prompt-outcome.approved,
.prompt-outcome.chosen {
  color: var(--accent-green);
}
.prompt-outcome.approved::before,
.prompt-outcome.chosen::before {
  content: "✓ ";
}
.prompt-outcome.revised,
.prompt-outcome.rejected {
  color: var(--accent-amber);
}
.prompt-collapsed-body {
  margin-top: 6px;
  padding-left: 12px;
  border-left: 2px solid var(--border);
  font-size: var(--fs-md);
  color: var(--subtext);
}
.prompt-collapsed-options {
  margin: 6px 0 0;
  padding-left: 18px;
}
.prompt-collapsed-options .sel {
  color: var(--text);
  font-weight: var(--fw-semibold);
}
.prompt-collapsed-note {
  margin-top: 6px;
  font-style: italic;
}

/* --- plan strip (docked above the composer while a plan awaits a decision) --- */

.plan-strip {
  /* Lives INSIDE .composer (so the composer's picker popovers stack above
     it). Claude-desktop shape: title line on top, a row of buttons below. */
  position: relative;
  width: 100%;
  margin: 0 0 10px;
  padding: 11px 13px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-blue);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: 0 2px 10px rgb(0 0 0 / 6%);
}
.plan-strip-info {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}
.plan-strip-open {
  margin-left: auto;
  padding: 0;
  border: none;
  background: none;
  color: var(--accent-blue);
  font-size: var(--fs-md);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}
.plan-strip-open:hover {
  text-decoration: underline;
}
.plan-strip-spacer {
  flex: 1;
}
/* Revise mode: a standalone bordered textarea (the strip itself has none —
   unlike the borderless composer textarea, this needs to read as its own
   input), focus ring on :focus like any other text field. */
.plan-strip-revise-input {
  width: 100%;
  resize: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 9px 11px;
  font-size: var(--fs-md);
  font-family: inherit;
  background: var(--base);
  color: var(--text);
}
.plan-strip-revise-input:focus {
  border-color: var(--accent-blue);
}
.plan-strip-icon {
  color: var(--accent-blue);
  flex-shrink: 0;
  align-self: center;
}
.plan-strip-title {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  white-space: nowrap;
}
/* Button styling comes from the shared `.prompt-actions` rules, but the
   strip is monochrome (no brand red): black text, black borders, quiet
   hover. `--text` keeps it theme-correct in dark mode. The spacer splits
   reject/revise (left) from the accepts (right); when the pane is too
   narrow the accept group wraps to its own right-aligned line. */
.plan-strip-actions {
  gap: 6px 8px;
  justify-content: flex-end;
}
.plan-strip-actions .btn-primary,
.plan-strip-actions .btn-ghost {
  background: transparent;
  border: 1px solid var(--text);
  color: var(--text);
}
.plan-strip-actions .btn-primary:hover:not(:disabled),
.plan-strip-actions .btn-ghost:hover:not(:disabled) {
  background: var(--surface-2, rgb(0 0 0 / 5%));
  border-color: var(--text);
  color: var(--text);
  opacity: 1;
}
/* The accept primary: solid dark (desktop's black button), not brand red.
   `--text`-on-`--base` inverts correctly in dark mode. */
.plan-strip-actions .plan-strip-primary {
  background: var(--text);
  border-color: var(--text);
  color: var(--base);
}
.plan-strip-actions .plan-strip-primary:hover:not(:disabled) {
  background: color-mix(in oklab, var(--text) 85%, var(--base));
  border-color: var(--text);
  color: var(--base);
}
.plan-strip-approve {
  position: relative;
  display: flex;
}
/* Split button: flat inner corners; the caret drops its own left border and
   draws a faint base-colored seam instead. (0,3,0)+ selectors so the
   `.prompt-actions`/`.plan-strip-actions` shorthands can't re-round or
   re-border the seam. */
.plan-strip-approve .btn-primary:first-child {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}
.plan-strip-actions .plan-strip-caret {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  padding: 0 6px;
  display: flex;
  align-items: center;
  border-left: 1px solid color-mix(in oklab, var(--base) 35%, var(--text));
}
.plan-strip-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 4px);
  display: flex;
  flex-direction: column;
  min-width: 190px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: 0 6px 20px rgb(0 0 0 / 12%);
  z-index: 6;
}
.plan-strip-menu button {
  text-align: left;
  padding: 7px 9px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  font-size: var(--fs-md);
  cursor: pointer;
}
.plan-strip-menu button:hover {
  background: var(--surface-2, rgb(0 0 0 / 5%));
}

/* Compact in-transcript plan card while the strip owns the actions. */
.prompt-plan.clamped {
  max-height: 9.5em;
  overflow: hidden;
  position: relative;
}
.prompt-plan.clamped::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 34px;
  background: linear-gradient(to bottom, transparent, var(--surface));
  pointer-events: none;
}
.prompt-plan-open {
  align-self: flex-start;
  border: none;
  background: transparent;
  color: var(--accent-blue);
  font-size: var(--fs-sm);
  padding: 0;
  cursor: pointer;
}
.prompt-plan-open:hover {
  text-decoration: underline;
}

/* Code browser tab — project-clone / branch file tree in flow layout (NOT
   .runs-table-wrap, which is position:absolute and would jump to (0,0)). */
.code-tab {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}
.code-tab-header {
  display: flex;
  align-items: center;
  gap: 8px;
  /* Match .file-view-header so Code ↔ file tab switches don't jump chrome. */
  padding: 4px 12px;
  border-bottom: 1px solid var(--border-variant);
  flex-shrink: 0;
}
.code-tab-select {
  max-width: 280px;
  min-width: 0;
  /* Compact metrics so the header's height matches .file-view-header's
   * (whose tallest child is a 28px icon-btn) — the base select rule's
   * 6px/14px would make Code <-> file tab switches jump the divider. */
  padding: 3px 8px;
  font-size: var(--fs-sm);
}
.code-tab-note {
  padding: 8px 16px;
  font-size: var(--fs-sm);
  color: var(--muted);
  border-bottom: 1px solid var(--border-variant);
  flex-shrink: 0;
}
.code-tab-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--base);
}
.code-tree {
  padding: 6px 0;
  font-size: var(--fs-md);
}
.code-tree-row {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 3px 10px;
  border: none;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}
.code-tree-row:hover {
  background: var(--panel);
}
.code-tree-row > svg {
  flex-shrink: 0;
  color: var(--subtext);
}
.code-tree-row > svg.code-tree-chev {
  color: var(--muted);
}
.code-tree-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- live worktree tab (WorktreeTab.tsx) ----
   The Changes/Files viewer for a chat session's private worktree. Reuses the
   .code-tab shell; adds a branch chip, a status-badged change list, and a diff
   region below it. */
.wt-branch-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: color-mix(in oklab, var(--text) 8%, transparent);
  color: var(--subtext);
  font-size: var(--fs-xs);
}
.wt-branch-chip > svg {
  flex-shrink: 0;
}
.wt-branch-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--mono);
}
.wt-count {
  padding: 0;
  border: none;
}
/* Same horizontal gutter as .drawer-body so the diff cards match the
 * experiment Changes view; no padding-top for the same reason there — sticky
 * diff-file headers would sit below the top with content peeking through.
 * The first child carries the spacing as margin instead. */
.wt-changes {
  padding: 0 16px 24px;
}
.wt-changes > :first-child {
  margin-top: 14px;
}
.wt-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 48px 24px;
  text-align: center;
  color: var(--muted);
}
.wt-empty > svg {
  color: var(--subtext);
}
.wt-empty p {
  margin: 0;
  max-width: 320px;
  font-size: var(--fs-sm);
}

/* ---- onboarding tour ----
   Spotlight walkthrough of the workspace (Tour.tsx). The overlay sits above
   the z-100 modal ladder; the dim is a single oversized box-shadow around the
   spotlight box so there's only one element to morph between steps. */
.tour-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
}
.tour-dim {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}
.tour-spotlight {
  position: absolute;
  border-radius: var(--radius-lg);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.55);
  transition: all 300ms ease;
}
.tour-ring {
  position: absolute;
  border-radius: var(--radius-lg);
  border: 2px solid var(--primary);
  transition: all 300ms ease;
}
.tour-card {
  position: absolute;
  width: 390px;
  max-width: calc(100vw - 32px);
  background: var(--base);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
  padding: 21px 23px 0;
  transition:
    left 200ms ease,
    top 200ms ease;
}
.tour-card.centered {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: none;
}
.tour-card h3 {
  margin: 0 26px 7px 0;
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
}
.tour-card p {
  margin: 0;
  font-size: var(--fs-base);
  line-height: 1.55;
  color: var(--text);
}
.tour-card .tour-close {
  position: absolute;
  top: 12px;
  right: 12px;
}
.tour-footer {
  display: flex;
  align-items: center;
  border-top: 1px solid var(--border-variant);
  margin-top: 16px;
  padding: 11px 0;
}
.tour-footer-side {
  flex: 1;
  display: flex;
}
.tour-footer-side.end {
  justify-content: flex-end;
}
.tour-count {
  font-size: var(--fs-sm);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
/* Rotated-square pointer on the card edge nearest the spotlight; the two
   outward borders draw the triangle. Class names follow the card's anchor
   ("above" = card above the target, so the arrow is on the bottom edge). */
.tour-arrow {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--base);
  rotate: 45deg;
  pointer-events: none;
}
.tour-arrow.above {
  bottom: -6.5px;
  left: calc(50% - 6px);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.tour-arrow.below {
  top: -6.5px;
  left: calc(50% - 6px);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
}
.tour-arrow.left {
  right: -6.5px;
  top: calc(50% - 6px);
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
}
.tour-arrow.right {
  left: -6.5px;
  top: calc(50% - 6px);
  border-bottom: 1px solid var(--border);
  border-left: 1px solid var(--border);
}