* { box-sizing: border-box; }

:root {
  --bg: #0f1115;
  --panel: #161922;
  --panel-2: #1c202b;
  --panel-3: #232837;
  --border: #2a2f3d;
  --text: #e6e8ee;
  --muted: #8a91a3;
  --accent: #7aa2ff;

  --user: #2a3550;
  --assistant: #1e2230;
  --error: #5a2a2a;

  --executor: #4a7aff;
  --executor-bg: rgba(74, 122, 255, 0.08);
  --advisor: #b86bff;
  --advisor-bg: rgba(184, 107, 255, 0.10);
  --danger: #ff6b6b;
  --danger-bg: rgba(255, 107, 107, 0.10);

  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Turn wrapper — subtle teal tint used in both chat and trace to visually
     link a turn's chat bubbles with its trace cards. */
  --turn-wrap-bg: #13221f;
  --turn-wrap-header-bg: #1a2c27;
  --turn-wrap-border: #2d4540;
  --turn-wrap-accent: #6fc9b3;
}

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, system-ui, sans-serif;
}

body {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

header {
  padding: 12px 18px;
  border-bottom: 1px solid #2d3556;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: linear-gradient(180deg, #1b2035 0%, #141826 100%);
  box-shadow: 0 1px 0 rgba(122, 162, 255, 0.08), 0 2px 10px rgba(0, 0, 0, 0.3);
}

header h1 {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.2px;
  display: flex;
  align-items: center;
  gap: 12px;
}

header h1 span {
  background: linear-gradient(90deg, #e6e8ee 0%, #a8b4d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

header h1 .title-icon {
  width: 26px;
  height: 26px;
  color: var(--advisor);
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px rgba(184, 107, 255, 0.35));
}

.header-version {
  font-size: 11px;
  font-weight: 400;
  color: var(--muted);
  opacity: 0.7;
}

/* Config panel on the chat side (above chat header) */
.config-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  align-items: center;
  min-height: 52px;
  box-sizing: border-box;
}

.config-title {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.config-panel {
  padding: 10px 16px 12px;
  border-bottom: 1px solid var(--border);
  background: #262b37;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.config-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.config-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  min-width: 72px;
  flex-shrink: 0;
}

.config-label-inline {
  min-width: 0;
  margin-left: 6px;
}

.config-select {
  font-family: var(--mono);
  font-size: 12px;
  padding: 4px 8px;
  text-transform: none;
  letter-spacing: 0;
  flex: 1;
  min-width: 0;
}

.config-select-narrow {
  flex: 0 0 auto;
  min-width: 90px;
}

.config-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.config-row.locked {
  opacity: 0.7;
  cursor: not-allowed;
}

.config-row.locked .config-select {
  cursor: not-allowed;
}

/* Top-nav button cluster — pill-shaped container holding Code View, About,
 * and Settings as a unified utility group. SVG icons keep visual weight
 * consistent across all three. */
.topnav-cluster {
  display: inline-flex;
  align-items: center;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2px;
}

.topnav-btn {
  position: relative;
  width: 38px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 7px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 0.12s, background 0.12s;
}

.topnav-btn:hover {
  color: var(--text);
  background: var(--panel-3);
}

.topnav-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Hairline dividers between adjacent buttons. Hidden on hover so the active
 * button reads as a clean filled tile instead of a tile with a side seam. */
.topnav-btn + .topnav-btn::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--border);
}

.topnav-btn:hover::before,
.topnav-btn:hover + .topnav-btn::before {
  background: transparent;
}

/* Code View gets the accent color so it stays visually distinct as the
 * "session-state inspector" inside the otherwise muted utility cluster. */
.topnav-btn-code {
  color: var(--accent);
}

.topnav-btn-code:hover {
  color: var(--accent);
  background: rgba(122, 162, 255, 0.12);
}

.topnav-ico {
  width: 18px;
  height: 18px;
  display: block;
}

/* New Chat button in the chat header — stands out more than a plain icon
   button since starting a fresh conversation is a primary user action. */
.btn-new-chat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px 5px 10px;
  background: rgba(184, 107, 255, 0.12);
  border: 1px solid rgba(184, 107, 255, 0.35);
  color: var(--advisor);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
}

.btn-new-chat:hover {
  background: rgba(184, 107, 255, 0.22);
  border-color: rgba(184, 107, 255, 0.55);
}

.btn-new-chat-plus {
  font-size: 15px;
  line-height: 1;
  font-weight: 600;
}

.btn-new-chat-label {
  letter-spacing: 0.2px;
}


select, button, textarea, input {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font: inherit;
}

button { cursor: pointer; }
button:hover { background: #252a39; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
}

.btn-primary {
  background: var(--executor);
  border-color: var(--executor);
  color: #fff;
  font-weight: 600;
}

.btn-primary:hover { background: #5a8aff; }

/* ===== Settings modal ===== */

.settings-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 20px 20px;
  overflow-y: auto;
}

.settings-modal.open { display: flex; }

.settings-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(2px);
  z-index: 0;
}

.settings-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 720px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 80px);
}

.settings-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
  border-radius: 12px 12px 0 0;
}

.settings-card-header h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
  padding: 2px 8px;
  cursor: pointer;
}

.btn-close:hover { color: var(--text); background: var(--panel-3); border-radius: 4px; }

.settings-card-body {
  padding: 18px;
  overflow-y: auto;
}

.settings-footer-buttons {
  display: flex;
  gap: 10px;
  align-items: center;
}

.saved-indicator {
  font-size: 11px;
  color: var(--muted);
  transition: color 0.2s;
}

.saved-indicator.flash {
  color: #7ed58a;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.setting {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.setting.full {
  grid-column: 1 / -1;
}

.setting label {
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.setting-hint {
  font-weight: 400;
  color: var(--muted);
  font-size: 10px;
}

.setting input[type="text"],
.setting input[type="password"],
.setting input[type="number"],
.setting select,
.setting textarea {
  width: 100%;
  font-family: var(--mono);
  font-size: 12px;
}

.setting textarea {
  resize: vertical;
}

/* Space the system prompt preset dropdown away from the textarea that sits
   directly beneath it in the same .setting container. */
#system-prompt-preset {
  margin-bottom: 8px;
}

.checkbox-row {
  flex-direction: row !important;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  padding: 6px 0;
}

.checkbox-row code {
  background: var(--panel-3);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--accent);
}

.settings-footer {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
}

/* Notices inside the "Notices & Disclaimers" section body */
.settings-section-body .settings-notice {
  font-size: 11px;
  color: var(--muted);
  padding: 10px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  line-height: 1.5;
  margin-bottom: 10px;
}

.settings-section-body .settings-notice:last-child {
  margin-bottom: 0;
}

.settings-notice strong {
  color: var(--text);
  font-weight: 600;
}

.settings-notice code {
  background: var(--panel-3);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--accent);
}

.settings-footer {
  flex-direction: column;
  gap: 10px;
}

.settings-footer-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--muted);
}

.settings-footer-info a {
  color: var(--accent);
  text-decoration: none;
}

.settings-footer-info a:hover {
  text-decoration: underline;
}

.settings-version {
  font-weight: 600;
  color: var(--muted);
}

.settings-links {
  color: var(--muted);
}

.settings-footer-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
}

/* Collapsible settings sections (native <details>/<summary>) */
.settings-section {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-2);
  margin-bottom: 12px;
  overflow: hidden;
}

.settings-section:last-child {
  margin-bottom: 0;
}

.settings-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
  background: var(--panel-3);
  border-bottom: 1px solid var(--border);
  user-select: none;
  list-style: none;
}

.settings-section-header::-webkit-details-marker { display: none; }

.settings-section:not([open]) .settings-section-header {
  border-bottom: none;
}

.settings-section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.settings-section-desc-inline {
  flex: 1;
  font-size: 11px;
  color: var(--muted);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-section-toggle {
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  width: 12px;
  text-align: center;
  transition: transform 0.15s;
}

.settings-section:not([open]) .settings-section-toggle {
  transform: rotate(-90deg);
}

.settings-section-body {
  padding: 14px;
  background: var(--panel);
}

.settings-section-desc {
  margin: 0 0 14px;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.5;
  padding: 10px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.settings-section-desc code {
  background: var(--panel-3);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--accent);
  font-size: 10px;
}

.settings-section-desc em {
  color: var(--text);
  font-style: italic;
}

main {
  flex: 1;
  display: grid;
  grid-template-columns: 30% 70%;
  min-height: 0;
}

#chat-pane, #trace-pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

#chat-pane {
  border-right: 1px solid var(--border);
  background: var(--bg);
  position: relative;
}

.chat-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  box-sizing: border-box;
}

.chat-title {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

#messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 16px 110px; /* extra bottom padding so the floating input doesn't overlap content */
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg {
  max-width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.msg.user { align-self: stretch; background: var(--user); }
.msg.assistant { align-self: stretch; background: var(--assistant); }
.msg.error {
  align-self: stretch;
  background: var(--error);
  font-family: var(--mono);
  font-size: 12px;
}

/* Floating chat form — absolutely positioned over the bottom of the chat pane */
#chat-form {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 10px 10px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(6px);
  z-index: 10;
}

#user-input {
  flex: 1;
  resize: none;
  font-family: inherit;
  background: transparent;
  border: none;
  outline: none;
  padding: 8px 0;
  min-height: 22px;
  max-height: 200px;
  line-height: 1.5;
  color: var(--text);
  font-size: 14px;
}

#user-input::placeholder {
  color: var(--muted);
}

/* Round icon-only send button */
#send {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--advisor);
  border: none;
  color: #fff;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.12s, background 0.15s, opacity 0.15s;
  box-shadow: 0 2px 10px rgba(184, 107, 255, 0.35);
}

#send:hover:not(:disabled) {
  background: #c885ff;
  transform: translateY(-1px);
}

#send:disabled {
  background: var(--panel-3);
  box-shadow: none;
  color: var(--muted);
  cursor: not-allowed;
  transform: none;
}

#send svg {
  display: block;
}

/* ===== Trace pane ===== */

#trace-pane {
  background: #0b0e14; /* slightly deeper than the chat pane so the two panes read as distinct surfaces */
}

.trace-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  box-sizing: border-box;
}

.trace-toggles {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sync-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.sync-toggle input[type="checkbox"] {
  width: 13px;
  height: 13px;
  accent-color: var(--turn-wrap-accent);
  cursor: pointer;
}

.trace-header .trace-title {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pane-icon {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

#trace {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
  font-size: 12px;
}

/* ============================================================================
   Totals dashboard — pinned strip above the scrollable trace list.
   Shows cumulative per-branch totals for the whole conversation: one tile
   per metric (in / out / cost / time) plus a turns tile. Values inside each
   tile are stacked and color-coded by branch.
   ============================================================================ */
.trace-totals {
  padding: 10px 16px 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.trace-totals[hidden] {
  display: none;
}

.totals-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(90px, 1fr)) minmax(60px, 70px);
  gap: 8px;
}

.totals-tile {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px 7px;
  text-align: center;
  min-width: 0;
}

.totals-tile-k {
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 3px;
}

.totals-tile-vstack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.totals-tile-v {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.25;
}

.totals-tile-v.branch-advisor  { color: var(--advisor); }
.totals-tile-v.branch-exec-solo { color: var(--exec-solo); }
.totals-tile-v.branch-adv-solo  { color: var(--adv-solo); }

.totals-leader {
  color: #7ed58a;
  margin-left: 5px;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--mono);
  display: inline-block;
}

.totals-tile-turns .totals-tile-vstack {
  justify-content: center;
  height: 100%;
}

.totals-tile-v-solo {
  color: var(--text);
  font-size: 16px;
}

.totals-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.totals-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.totals-legend-model {
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--mono);
  font-size: 10px;
  margin-left: 2px;
}

.totals-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  background: var(--muted);
}

.totals-legend-item.branch-advisor  .totals-legend-dot { background: var(--advisor); }
.totals-legend-item.branch-exec-solo .totals-legend-dot { background: var(--exec-solo); }
.totals-legend-item.branch-adv-solo  .totals-legend-dot { background: var(--adv-solo); }

.totals-legend-item.branch-advisor  { color: var(--advisor); }
.totals-legend-item.branch-exec-solo { color: var(--exec-solo); }
.totals-legend-item.branch-adv-solo  { color: var(--adv-solo); }

/* Effort indicator in the legend — styled to match branch items but with its
   own accent color since effort is a global setting, not a branch. Only the
   label + dot take the accent color; the value inherits the muted style used
   by branch model names for visual consistency. */
.totals-legend-item.legend-effort { color: #ffd94a; margin-left: auto; }
.totals-legend-item.legend-effort .totals-legend-dot { background: #ffd94a; }

/* Turn container */
.turn {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 16px;
  background: var(--panel);
  overflow: hidden;
}

.turn-header {
  padding: 10px 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel-2);
  user-select: none;
  border-bottom: 1px solid var(--border);
}

.turn-title { font-weight: 600; }

.turn-model-badge {
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--panel-3);
  color: var(--muted);
  white-space: nowrap;
  margin-left: 8px;
}

.turn-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  color: var(--muted);
}

.turn-stop code {
  background: var(--panel-3);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent);
}

.turn-duration {
  font-family: var(--mono);
  background: var(--panel-3);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--text);
}

.turn-toggle {
  font-size: 14px;
  transition: transform 0.15s;
  width: 12px;
  text-align: center;
}

.turn.collapsed .turn-toggle { transform: rotate(-90deg); }
.turn.collapsed .turn-body { display: none; }
.turn.collapsed .turn-summary { border-bottom: none; }

/* User prompt section */
.user-section {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

.section-label {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.user-text {
  margin: 0;
  padding: 8px 10px;
  background: var(--panel-2);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 11px;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 120px;
  overflow-y: auto;
}

/* Turn summary (totals) */
.turn-summary {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.summary-row {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--panel-3);
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.3px;
}

.pill-advisor {
  background: var(--advisor-bg);
  color: var(--advisor);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.summary-grid > div {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  text-align: center;
}

.summary-grid .k {
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.summary-grid .v {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  margin-top: 2px;
}

/* Timeline */
.timeline {
  padding: 14px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.step {
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 8px;
  background: var(--panel-2);
  padding: 10px 12px;
}

.step-executor {
  border-left-color: var(--executor);
  background: linear-gradient(90deg, var(--executor-bg) 0%, var(--panel-2) 40%);
}

.step-advisor {
  border-left-color: var(--advisor);
  background: linear-gradient(90deg, var(--advisor-bg) 0%, var(--panel-2) 40%);
}

.step-error {
  border-left-color: var(--danger) !important;
  background: linear-gradient(90deg, var(--danger-bg) 0%, var(--panel-2) 40%) !important;
}

.step-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--panel-3);
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
}

.step-executor .step-num { background: var(--executor); color: #fff; }
.step-advisor .step-num { background: var(--advisor); color: #fff; }
.step-error .step-num { background: var(--danger); color: #fff; }

.step-role {
  font-weight: 600;
  font-size: 12px;
}

.step-executor .step-role { color: var(--executor); }
.step-advisor .step-role { color: var(--advisor); }
.step-error .step-role { color: var(--danger); }

.step-model {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  background: var(--panel-3);
  padding: 2px 6px;
  border-radius: 4px;
}

.step-cost {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  cursor: help;
}

.step-tokens {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 11px;
}

.step-tokens span {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--muted);
  cursor: help;
}

.step-tokens span b {
  color: var(--text);
  font-weight: 500;
  margin-right: 4px;
}

/* Produced blocks inside a step */
.step-produced {
  border-top: 1px dashed var(--border);
  padding-top: 8px;
}

.produced-title {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 9px;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.produced-block {
  margin-bottom: 6px;
}

.produced-block:last-child {
  margin-bottom: 0;
}

.bt {
  display: inline-block;
  font-family: var(--mono);
  font-size: 9px;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--panel-3);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 4px;
}

.bt-text { background: rgba(74, 122, 255, 0.2); color: var(--executor); }
.bt-tool { background: rgba(212, 162, 76, 0.2); color: #e0b25c; }
.bt-advice { background: rgba(184, 107, 255, 0.2); color: var(--advisor); }
.bt-error { background: rgba(255, 107, 107, 0.2); color: var(--danger); }

.produced-block pre {
  margin: 0;
  padding: 8px 10px;
  background: var(--panel);
  border-radius: 5px;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: var(--mono);
  font-size: 11px;
  max-height: 220px;
  overflow-y: auto;
  line-height: 1.5;
}

.produced-block pre.muted { color: var(--muted); }

/* Arrow between steps */
.step-arrow {
  align-self: center;
  color: var(--muted);
  font-size: 18px;
  line-height: 1;
  padding: 4px 0;
}

/* Raw toggle */
.raw-toggle {
  border-top: 1px solid var(--border);
  padding: 8px 14px 10px;
  background: var(--panel-2);
}

.raw-toggle summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 11px;
  user-select: none;
}

.raw-toggle pre {
  margin: 4px 0 0;
  padding: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 10px;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 400px;
  overflow-y: auto;
}

/* Prism applies its own font-size to pre[class*="language-"]; restore the
 * compact 10px sizing that the I/O viewer uses to fit large JSON payloads.
 * Wrap is ON by default (.io-nowrap toggles back to horizontal scroll).
 * Both pre AND code need the white-space rule: Prism's theme sets
 * `white-space: pre` on the inner code element, which would otherwise win. */
.raw-toggle pre[class*="language-"] {
  font-size: 10px;
  line-height: 1.5;
  padding: 10px;
  margin: 0;
  border-radius: 6px;
}

.raw-toggle pre[class*="language-"],
.raw-toggle pre[class*="language-"] code {
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}

.raw-toggle pre[class*="language-"].io-nowrap,
.raw-toggle pre[class*="language-"].io-nowrap code {
  white-space: pre;
  word-wrap: normal;
  overflow-wrap: normal;
}

.raw-toggle pre[class*="language-"].io-nowrap {
  overflow-x: auto;
}

.io-section {
  margin-top: 10px;
}

.io-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.io-section-header .copy-btn {
  padding: 3px 8px;
  font-size: 10px;
}

.io-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  color: var(--accent);
  padding: 4px 8px;
  background: var(--panel-3);
  border-radius: 4px;
  display: inline-block;
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 24px;
}

/* ============================================================================
 * Compare mode — branch colors, chat bubbles, trace column grid, delta pills
 * ============================================================================ */

:root {
  --exec-solo: #4a7aff;
  --adv-solo: #e0b25c;
}

/* --- Chat: branch bubbles with chips --- */

.branch-bubble {
  align-self: stretch;
  max-width: 100%;
  background: var(--assistant);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: 10px;
  padding: 10px 14px;
}

.branch-bubble.branch-advisor { border-left-color: var(--advisor); }
.branch-bubble.branch-exec-solo { border-left-color: var(--exec-solo); }
.branch-bubble.branch-adv-solo { border-left-color: var(--adv-solo); }
.branch-bubble.branch-error { border-left-color: var(--danger); background: var(--danger-bg); }

.branch-chip-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  cursor: pointer;
  user-select: none;
}

.branch-toggle {
  margin-left: auto;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  width: 12px;
  text-align: center;
  transition: transform 0.15s;
}

.branch-bubble.collapsed .branch-toggle { transform: rotate(-90deg); }
.branch-bubble.collapsed .branch-chip-row { margin-bottom: 0; }
.branch-bubble.collapsed .branch-body { display: none; }

.branch-chip {
  display: inline-block;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}

.branch-elapsed {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
  background: var(--panel-3);
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.branch-model-pill {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text);
  background: var(--panel-3);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  white-space: nowrap;
}

/* Pending-bubble pulse (subtle border glow while the API call is in flight) */
.branch-pending {
  animation: branch-pending-pulse 1.6s infinite ease-in-out;
}

@keyframes branch-pending-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(111, 201, 179, 0); }
  50%      { box-shadow: 0 0 10px 0 rgba(111, 201, 179, 0.25); }
}

/* Thinking dots animation — three bouncing dots while awaiting the API */
.branch-body.thinking {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 0 4px;
  min-height: 20px;
}

.branch-body.thinking .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  animation: thinking-bounce 1.4s infinite ease-in-out both;
}

.branch-body.thinking .dot:nth-child(1) { animation-delay: -0.32s; }
.branch-body.thinking .dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes thinking-bounce {
  0%, 80%, 100% { transform: scale(0); opacity: 0.35; }
  40%           { transform: scale(1); opacity: 1;    }
}

.branch-advisor .branch-chip {
  background: rgba(184, 107, 255, 0.18);
  color: var(--advisor);
}
.branch-exec-solo .branch-chip {
  background: rgba(74, 122, 255, 0.18);
  color: var(--exec-solo);
}
.branch-adv-solo .branch-chip {
  background: rgba(224, 178, 92, 0.18);
  color: var(--adv-solo);
}

.branch-body {
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 13px;
  line-height: 1.5;
}

.system-note {
  align-self: center;
  max-width: 90%;
  padding: 6px 12px;
  font-size: 11px;
  color: var(--muted);
  background: var(--panel-2);
  border: 1px dashed var(--border);
  border-radius: 999px;
  text-align: center;
  font-style: italic;
}

/* --- Trace: column grid, row layout, column headers --- */

#trace {
  /* --cols set by JS via updateTraceColumnCount() */
}

.turn-row {
  display: grid;
  grid-template-columns: repeat(var(--cols, 1), 1fr);
  gap: 12px;
  margin-bottom: 12px;
  align-items: start;
}

/* When in compare mode, each turn card gets a branch-colored top accent */
.turn.branch-advisor { border-top: 2px solid var(--advisor); }
.turn.branch-exec-solo { border-top: 2px solid var(--exec-solo); }
.turn.branch-adv-solo { border-top: 2px solid var(--adv-solo); }

/* Hide the standalone .turn margin-bottom since turn-row controls spacing */
.turn-row .turn { margin-bottom: 0; }

/* Error state for a branch */
.turn-error {
  padding: 12px 14px;
  color: var(--danger);
  background: var(--danger-bg);
  font-family: var(--mono);
  font-size: 11px;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* --- Delta pills row --- */

.delta-row {
  display: grid;
  grid-template-columns: repeat(var(--cols, 1), 1fr);
  gap: 12px;
  margin: -6px 0 16px;
}

.delta-pill {
  grid-column: 2 / -1;
  padding: 8px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: 8px;
  font-size: 11px;
}

.delta-pill.branch-exec-solo { border-left-color: var(--exec-solo); }
.delta-pill.branch-adv-solo { border-left-color: var(--adv-solo); }

.delta-pill-title {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 9px;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.delta-pill-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-family: var(--mono);
}

.delta-pill-row > span {
  color: var(--muted);
}

.delta {
  font-weight: 600;
}
.delta.good { color: #7ed58a; }
.delta.bad { color: #ff9a9a; }
.delta.neutral { color: var(--muted); }

/* When there are 3 columns, delta row needs to accommodate 2 pills */
#trace[data-cols="3"] .delta-row .delta-pill:first-child { grid-column: 2 / 3; }
#trace[data-cols="3"] .delta-row .delta-pill:last-child { grid-column: 3 / 4; }
#trace[data-cols="2"] .delta-row .delta-pill { grid-column: 2 / 3; }

/* --- Step card adjustments for narrow columns --- */

#trace[data-cols="3"] .step-head { gap: 6px; }
#trace[data-cols="3"] .step-model { font-size: 9px; }
#trace[data-cols="3"] .step-tokens { gap: 6px; }
#trace[data-cols="3"] .step-tokens span { padding: 2px 6px; font-size: 10px; }
#trace[data-cols="3"] .summary-grid { grid-template-columns: repeat(4, 1fr); gap: 3px; }
#trace[data-cols="3"] .summary-grid > div { padding: 4px 4px; }
#trace[data-cols="3"] .summary-grid .v { font-size: 11px; }

/* ============================================================================
 * Turn group — wraps all branches for a turn in a collapsible card
 * ============================================================================ */

.turn-group {
  margin-bottom: 14px;
  border: 1px solid var(--turn-wrap-border);
  border-radius: 10px;
  background: var(--turn-wrap-bg);
  overflow: hidden;
}

.turn-group-header {
  padding: 10px 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--turn-wrap-header-bg);
  border-bottom: 1px solid var(--turn-wrap-border);
  user-select: none;
}

.turn-group.collapsed .turn-group-header {
  border-bottom: none;
}

.turn-group-title {
  font-weight: 600;
  font-size: 12px;
  white-space: nowrap;
  color: var(--turn-wrap-accent);
}

.turn-group-summary-strip {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.group-summary-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 10px;
  background: var(--panel-3);
  border: 1px solid var(--border);
  border-left-width: 3px;
}

.group-summary-chip.branch-advisor { border-left-color: var(--advisor); }
.group-summary-chip.branch-exec-solo { border-left-color: var(--exec-solo); }
.group-summary-chip.branch-adv-solo { border-left-color: var(--adv-solo); }

.group-summary-chip .chip-label {
  color: var(--muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.3px;
  font-size: 9px;
}

.group-summary-chip.branch-advisor .chip-label { color: var(--advisor); }
.group-summary-chip.branch-exec-solo .chip-label { color: var(--exec-solo); }
.group-summary-chip.branch-adv-solo .chip-label { color: var(--adv-solo); }

.group-summary-chip .chip-nums {
  font-family: var(--mono);
  color: var(--text);
}

.group-summary-chip .chip-error {
  color: var(--danger);
}

.turn-group-toggle {
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  width: 12px;
  text-align: center;
  transition: transform 0.15s;
}

.turn-group.collapsed .turn-group-toggle { transform: rotate(-90deg); }
.turn-group.collapsed .turn-group-body { display: none; }

.turn-group-body {
  padding: 12px;
}

.turn-group-body .turn-row {
  margin-bottom: 0;
}

.turn-group-body .delta-row {
  margin: 0 0 10px;
}

/* Turn cards inside a group don't need their own outer margin */
.turn-group .turn {
  margin-bottom: 0;
}

/* ============================================================================
 * Chat turn wrapper — groups the user prompt + all branch replies for a turn
 * in a subtle teal container that visually matches the trace's .turn-group.
 * ============================================================================ */

.chat-turn {
  display: flex;
  flex-direction: column;
  padding: 10px 12px;
  background: var(--turn-wrap-bg);
  border: 1px solid var(--turn-wrap-border);
  border-radius: 10px;
}

.chat-turn-header {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--turn-wrap-border);
  user-select: none;
}

.chat-turn-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--turn-wrap-accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.chat-turn-preview {
  flex: 1;
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  font-style: italic;
}

.chat-turn-toggle {
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  width: 12px;
  text-align: center;
  transition: transform 0.15s;
}

.chat-turn.collapsed .chat-turn-toggle { transform: rotate(-90deg); }
.chat-turn.collapsed .chat-turn-header { border-bottom: none; padding-bottom: 0; }
.chat-turn.collapsed .chat-turn-body { display: none; }

.chat-turn-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 10px;
}

/* ============================================================================
 * Evaluation — button in turn-group header + inline eval panel
 * ============================================================================ */

:root {
  --eval-accent: #e0b25c;        /* amber, used for the panel accent + warnings */
  --eval-accent-bg: rgba(224, 178, 92, 0.08);
  --eval-warning-bg: rgba(224, 178, 92, 0.12);
  --eval-warning-border: rgba(224, 178, 92, 0.35);
  --eval-panel-bg: #1a1a1f;
  --eval-panel-border: #3a3a45;
}

/* Evaluate button in the turn-group header */
.eval-btn {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  background: var(--eval-accent);
  color: #1a1a1f;
  border: 1px solid var(--eval-accent);
  cursor: pointer;
  white-space: nowrap;
}

.eval-btn:hover:not(:disabled) {
  background: #f2c46a;
  border-color: #f2c46a;
}

.eval-btn:disabled {
  background: var(--panel-3);
  color: var(--muted);
  border-color: var(--border);
  cursor: wait;
}

/* Eval panel — lives inside the turn-group body, above delta pills.
   Has a collapsible header + body structure like the turn-group card. */
.eval-panel {
  background: var(--eval-panel-bg);
  border: 1px solid var(--eval-panel-border);
  border-left: 3px solid var(--eval-accent);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
}

.eval-panel-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  cursor: pointer;
  background: rgba(224, 178, 92, 0.08);
  border-bottom: 1px solid var(--eval-panel-border);
  user-select: none;
}

.eval-panel.collapsed .eval-panel-header {
  border-bottom: none;
}

.eval-panel.collapsed .eval-panel-body {
  display: none;
}

.eval-panel-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--eval-accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.eval-panel-model {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  background: var(--panel-3);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
  white-space: nowrap;
}

.eval-panel-toggle {
  margin-left: auto;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  width: 12px;
  text-align: center;
  transition: transform 0.15s;
}

.eval-panel.collapsed .eval-panel-toggle { transform: rotate(-90deg); }

.eval-panel-body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Loading state — no header, just inline content with padding */
.eval-panel.eval-loading {
  border-left-color: var(--accent);
  padding: 14px;
}

.eval-loading-row {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
}

.eval-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--panel-3);
  border-top-color: var(--eval-accent);
  border-radius: 50%;
  animation: eval-spin 0.8s linear infinite;
}

@keyframes eval-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Error state — no header, just inline content with padding */
.eval-panel.eval-error-panel {
  border-left-color: var(--danger);
  padding: 14px;
}

/* Warning block */
.eval-warning {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 12px;
  background: var(--eval-warning-bg);
  border: 1px solid var(--eval-warning-border);
  border-radius: 6px;
  font-size: 11px;
  line-height: 1.5;
}

.eval-warning.eval-warning-soft {
  background: rgba(122, 162, 255, 0.08);
  border-color: rgba(122, 162, 255, 0.3);
}

.eval-warning .warning-icon {
  color: var(--eval-accent);
  font-size: 14px;
  flex-shrink: 0;
  line-height: 1;
  padding-top: 1px;
}

.eval-warning.eval-warning-soft .warning-icon {
  color: var(--accent);
}

.eval-warning .warning-text {
  color: var(--text);
  flex: 1;
}

.eval-warning .warning-text b {
  font-weight: 600;
}

/* Scores table */
table.eval-scores {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

table.eval-scores th,
table.eval-scores td {
  padding: 8px 10px;
  text-align: center;
  border: 1px solid var(--eval-panel-border);
}

table.eval-scores thead th {
  background: var(--panel-3);
  color: var(--muted);
  font-weight: 500;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

table.eval-scores td {
  font-family: var(--mono);
  color: var(--text);
}

table.eval-scores td.total {
  font-weight: 600;
  color: var(--eval-accent);
}

table.eval-scores td.branch-col,
table.eval-scores th.branch-col {
  text-align: left;
  font-weight: 600;
  text-transform: none;
  font-family: inherit;
  vertical-align: middle;
}

table.eval-scores td.branch-col .branch-name {
  font-weight: 600;
  font-size: 12px;
  line-height: 1.2;
}

table.eval-scores td.branch-col .branch-model {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
  font-weight: 400;
  margin-top: 3px;
  line-height: 1.2;
}

table.eval-scores tr.branch-advisor td.branch-col .branch-name { color: var(--advisor); }
table.eval-scores tr.branch-exec-solo td.branch-col .branch-name { color: var(--exec-solo); }
table.eval-scores tr.branch-adv-solo td.branch-col .branch-name { color: var(--adv-solo); }

/* Verdict row */
.eval-verdict {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.eval-verdict .winner {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--panel-3);
  border: 1px solid var(--eval-panel-border);
  border-left-width: 3px;
  border-radius: 6px;
}

.eval-verdict .winner.branch-advisor { border-left-color: var(--advisor); }
.eval-verdict .winner.branch-exec-solo { border-left-color: var(--exec-solo); }
.eval-verdict .winner.branch-adv-solo { border-left-color: var(--adv-solo); }

.eval-verdict .verdict-label {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.eval-verdict .winner strong {
  font-weight: 600;
  font-size: 13px;
}

.eval-verdict .confidence {
  display: inline-block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.eval-verdict .confidence-high {
  background: rgba(126, 213, 138, 0.15);
  color: #7ed58a;
  border: 1px solid rgba(126, 213, 138, 0.3);
}

.eval-verdict .confidence-medium {
  background: rgba(122, 162, 255, 0.15);
  color: var(--accent);
  border: 1px solid rgba(122, 162, 255, 0.3);
}

.eval-verdict .confidence-low {
  background: rgba(255, 154, 154, 0.15);
  color: #ff9a9a;
  border: 1px solid rgba(255, 154, 154, 0.3);
}

/* Summary sentence */
.eval-summary {
  font-style: italic;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  padding: 0 4px;
}

/* Reasoning twirl */
.eval-reasoning {
  background: var(--panel-2);
  border: 1px solid var(--eval-panel-border);
  border-radius: 6px;
  padding: 8px 12px;
}

.eval-reasoning summary {
  cursor: pointer;
  font-size: 11px;
  color: var(--muted);
  user-select: none;
}

.eval-reasoning[open] summary {
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.reasoning-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.reasoning-run {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 8px 10px;
}

.reasoning-run-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 8px;
}

.reasoning-branch {
  padding: 6px 8px;
  border-left: 2px solid var(--border);
  margin-bottom: 6px;
}

.reasoning-branch:last-child { margin-bottom: 0; }
.reasoning-branch.branch-advisor { border-left-color: var(--advisor); }
.reasoning-branch.branch-exec-solo { border-left-color: var(--exec-solo); }
.reasoning-branch.branch-adv-solo { border-left-color: var(--adv-solo); }

.reasoning-branch-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.reasoning-branch-model {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  background: var(--panel-3);
  padding: 1px 6px;
  border-radius: 3px;
}

.reasoning-branch.branch-advisor .reasoning-branch-label { color: var(--advisor); }
.reasoning-branch.branch-exec-solo .reasoning-branch-label { color: var(--exec-solo); }
.reasoning-branch.branch-adv-solo .reasoning-branch-label { color: var(--adv-solo); }

.reasoning-dim {
  font-size: 11px;
  color: var(--text);
  line-height: 1.5;
  margin-top: 2px;
}

.reasoning-dim .rdim {
  color: var(--muted);
  font-weight: 600;
  margin-right: 4px;
}

/* Footer: model + cost + duration chips */
.eval-footer {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.eval-footer-chip {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  background: var(--panel-3);
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

/* ============================================================================
 * Confirm modal (reusable) — used for destructive actions like "New conversation"
 * ============================================================================ */

.confirm-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.confirm-modal.open { display: flex; }

.confirm-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(3px);
  z-index: 0;
}

.confirm-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
  padding: 20px 22px;
}

.confirm-title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.confirm-body {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 20px;
}

.confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.btn-danger {
  background: #c04a4a;
  border: 1px solid #c04a4a;
  color: #fff;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
}

.btn-danger:hover {
  background: #d85757;
  border-color: #d85757;
}

/* ===== Copy button (shared) =====
 * Used by Code View tabs and Full I/O viewer JSON blocks.
 * Built via makeCopyButton() in app.js.
 */
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--panel-3);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 11px;
  font-weight: 500;
  font-family: inherit;
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: color 0.12s, border-color 0.12s, background 0.12s;
}

.copy-btn:hover {
  background: var(--panel);
  border-color: var(--accent);
  color: var(--accent);
}

.copy-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.copy-btn.copied {
  color: #7ed58a;
  border-color: #7ed58a;
}

.copy-btn.failed {
  color: var(--danger);
  border-color: var(--danger);
}

.copy-btn svg {
  flex-shrink: 0;
}

/* ===== About modal ===== */

.about-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 150;
  align-items: center;
  justify-content: center;
  padding: 30px 20px;
}

.about-modal.open { display: flex; }

.about-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(2px);
  z-index: 0;
}

.about-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  overflow: hidden;
  text-align: center;
}

.about-body {
  padding: 32px 30px 20px;
}

.about-icon {
  width: 40px;
  height: 40px;
  color: var(--advisor);
  margin-bottom: 14px;
  filter: drop-shadow(0 0 10px rgba(184, 107, 255, 0.4));
}

.about-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.about-tagline {
  margin: 0 0 16px;
  font-size: 13px;
  color: var(--muted);
  font-style: italic;
}

.about-tagline a {
  color: var(--advisor);
  text-decoration: none;
  font-weight: 500;
}

.about-tagline a:hover {
  text-decoration: underline;
}

.about-meta {
  margin-top: 14px !important;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
}

.about-version {
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}

.about-line {
  margin: 0 0 8px;
  font-size: 13px;
  color: #b9c0d2;
}

.about-line:last-child {
  margin-bottom: 0;
}

.about-line a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.about-line a:hover {
  text-decoration: underline;
}

.about-footer {
  padding: 14px;
  border-top: 1px solid var(--border);
  background: var(--panel-2);
}

.about-footer button {
  min-width: 80px;
}

/* ===== Welcome slideshow modal ===== */

.welcome-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 30px 20px;
  overflow-y: auto;
}

.welcome-modal.open { display: flex; }

.welcome-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(3px);
  z-index: 0;
}

.welcome-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 780px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(122, 162, 255, 0.08);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 60px);
  overflow: hidden;
}

.welcome-close {
  position: absolute;
  top: 10px;
  right: 12px;
  z-index: 2;
}

.welcome-slides {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 34px 40px 20px;
}

.welcome-slide {
  display: none;
  animation: welcomeFadeIn 0.25s ease;
}

.welcome-slide.active {
  display: block;
}

@keyframes welcomeFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.welcome-slide h2 {
  margin: 0 0 14px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.2px;
}

.welcome-version {
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
}

.welcome-byline {
  font-size: 13px;
  color: var(--muted);
  margin: -8px 0 16px;
}

.welcome-byline a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.welcome-byline a:hover {
  text-decoration: underline;
}

.welcome-lead {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  margin: 0 0 16px;
}

.welcome-body {
  font-size: 13px;
  line-height: 1.65;
  color: #b9c0d2;
  margin: 0 0 14px;
}

.welcome-body strong,
.welcome-lead strong {
  color: var(--text);
  font-weight: 600;
}

.welcome-footnote {
  font-size: 11px;
  color: var(--muted);
  margin: 12px 0 0;
}

.welcome-footnote a {
  color: var(--accent);
  text-decoration: none;
}

.welcome-footnote a:hover {
  text-decoration: underline;
}

.welcome-diagram-wrap {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  margin: 14px 0 16px;
  display: flex;
  justify-content: center;
}

.welcome-diagram {
  width: 100%;
  max-width: 680px;
  height: auto;
  display: block;
}

.welcome-list {
  margin: 0 0 14px;
  padding-left: 20px;
  color: #b9c0d2;
  font-size: 13px;
  line-height: 1.65;
}

.welcome-list li {
  margin-bottom: 8px;
}

.welcome-list strong {
  color: var(--text);
  font-weight: 600;
}

.welcome-list-numbered {
  padding-left: 22px;
}

.welcome-list-small {
  font-size: 12px;
}

.welcome-list-small li em {
  color: #9ea6bd;
}

.welcome-tip {
  font-size: 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--turn-wrap-accent);
  padding: 10px 12px;
  border-radius: 6px;
  color: #b9c0d2;
  line-height: 1.55;
  margin: 14px 0 0;
}

.welcome-tip code {
  background: var(--panel-3);
  color: var(--accent);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 11px;
}

.welcome-cta {
  text-align: center;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  margin: 14px 0 18px;
}

.welcome-cta-btn {
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--executor);
}

.welcome-cta-hint {
  margin: 10px 0 0;
  font-size: 11px;
  color: var(--muted);
}

/* Final welcome slide steps — each gets a numbered label, and entire steps
   hide when already configured. */
.welcome-step {
  margin-bottom: 16px;
}

.welcome-step:last-of-type {
  margin-bottom: 0;
}

.welcome-step-label {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.welcome-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--advisor);
  color: #fff;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

.welcome-step-sublabel {
  color: var(--muted);
  font-weight: 400;
  font-size: 12px;
}

.welcome-step-body {
  margin: 0 0 0 30px;
}

.welcome-step .welcome-list-small {
  margin-left: 30px;
}

.welcome-footer {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  background: var(--panel-2);
}

.welcome-dontshow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.welcome-dontshow input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--executor);
  cursor: pointer;
}

.welcome-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.welcome-dots {
  display: flex;
  gap: 6px;
}

.welcome-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--panel-3);
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 0;
  transition: background 0.15s, transform 0.15s;
}

.welcome-dot:hover {
  background: var(--border);
}

.welcome-dot.active {
  background: var(--executor);
  border-color: var(--executor);
  transform: scale(1.15);
}

.welcome-nav-buttons {
  display: flex;
  gap: 8px;
}

.welcome-nav-buttons button {
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 12px;
  border: 1px solid var(--border);
}

.welcome-nav-buttons button:disabled {
  opacity: 0.35;
}

/* Settings notice with inline action button (used by Reset welcome) */
.settings-notice-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.settings-notice-action button {
  flex-shrink: 0;
  padding: 6px 12px;
  font-size: 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
}

.settings-notice-danger {
  border-color: rgba(255, 107, 107, 0.25);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 11px;
  border-radius: 6px;
}

/* Clickable "Settings" link inside an error chat message */
.msg.error .open-settings-link {
  color: #ffd9d9;
  text-decoration: underline;
  cursor: pointer;
  font-weight: 600;
}

.msg.error .open-settings-link:hover {
  color: #fff;
}

@media (max-width: 640px) {
  .welcome-slides {
    padding: 28px 22px 16px;
  }
  .welcome-slide h2 {
    font-size: 19px;
  }
  .welcome-footer {
    flex-direction: column;
    gap: 12px;
    padding: 14px 18px;
  }
  .welcome-nav {
    width: 100%;
    justify-content: space-between;
  }
}

/* ============================================================================
 * Code View modal — opened from the </> button in the top-nav.
 * Shows the exact Anthropic API call for the user's current configuration
 * in three languages (TypeScript, Python, curl). See docs/build/v1.5.0/.
 * ============================================================================ */

.code-view-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 20px 20px;
  overflow-y: auto;
}

.code-view-modal.open { display: flex; }

.code-view-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(2px);
  z-index: 0;
}

.code-view-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 880px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 80px);
}

.code-view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
  border-radius: 12px 12px 0 0;
}

.code-view-header h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.code-view-icon {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: -0.5px;
}

.code-view-subtitle {
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
}

/* Settings pill rail — populated by app.js on modal open */
.code-view-pill-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 18px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}

.code-view-pill-rail:empty {
  display: none;
}

.code-view-pill-rail .pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--panel-3);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  white-space: nowrap;
}

.code-view-pill-rail .pill .k {
  color: var(--muted);
}

.code-view-pill-rail .pill.exec {
  border-color: rgba(74, 122, 255, 0.4);
}
.code-view-pill-rail .pill.exec .k {
  color: var(--executor);
}

.code-view-pill-rail .pill.adv {
  border-color: rgba(184, 107, 255, 0.4);
}
.code-view-pill-rail .pill.adv .k {
  color: var(--advisor);
}

/* Tab row — flex container with tabs on the left and actions (wrap, copy)
 * pinned to the right. */
.code-view-tabs-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 12px 0 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}

.code-view-tabs {
  display: flex;
  gap: 0;
}

.code-view-tab {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  border: none;
  background: transparent;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-family: inherit;
  border-radius: 0;
}

.code-view-tab:hover:not(.active) {
  color: var(--text);
  background: transparent;
}

.code-view-tab.active {
  color: var(--text);
  border-bottom-color: var(--accent);
  background: transparent;
}

.code-view-tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.code-view-tab-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.code-view-wrap-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.code-view-wrap-toggle input {
  margin: 0;
  cursor: pointer;
  accent-color: var(--accent);
}

.code-view-wrap-toggle:hover {
  color: var(--text);
}

/* Dim the whole label when its checkbox is disabled (e.g., Original prompt
 * before the user has sent anything). */
.code-view-wrap-toggle:has(input:disabled) {
  opacity: 0.45;
  cursor: not-allowed;
}

.code-view-wrap-toggle:has(input:disabled):hover {
  color: var(--muted);
}

.code-view-wrap-toggle input:disabled {
  cursor: not-allowed;
}

.code-view-tab-actions .copy-btn {
  padding: 4px 10px;
  font-size: 11px;
}

/* Body — holds the three tab panels with a fixed height so the modal stays
 * the same size regardless of which language is active (snippet length
 * varies per language). Each panel scrolls internally. */
.code-view-body {
  position: relative;
  flex: 0 0 auto;
  background: var(--bg);
  height: min(620px, calc(100vh - 240px));
  overflow: hidden;
}

.code-view-panel {
  position: relative;
  height: 100%;
  overflow: auto;
}

.code-view-panel pre[class*="language-"] {
  margin: 0;
  padding: 18px;
  background: var(--bg);
  font-size: 12.5px;
  line-height: 1.55;
  border-radius: 0;
  min-height: 100%;
  box-sizing: border-box;
}

/* Wrap toggle behavior — default is wrap (no class). The .io-nowrap class
 * (set by the wrap checkbox in the tab row) flips back to horizontal scroll.
 * Both pre AND code need the white-space rule because Prism's theme sets
 * `white-space: pre` on the inner code element, which would otherwise win. */
.code-view-panel pre[class*="language-"],
.code-view-panel pre[class*="language-"] code {
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}

.code-view-panel pre[class*="language-"].io-nowrap,
.code-view-panel pre[class*="language-"].io-nowrap code {
  white-space: pre;
  word-wrap: normal;
  overflow-wrap: normal;
}

/* When wrap is off, let the panel itself scroll horizontally — not the pre.
 * `min-width: max-content` makes the pre as wide as its widest line, which
 * forces the panel's overflow:auto to expose a single horizontal scrollbar
 * pinned at the bottom of the panel viewport (always visible). Without this,
 * the scrollbar lives at the bottom of the pre, which is below the panel
 * viewport when the snippet is taller than the panel. */
.code-view-panel pre[class*="language-"].io-nowrap {
  min-width: max-content;
}

/* Footer */
.code-view-footer {
  padding: 10px 18px;
  border-top: 1px solid var(--border);
  background: var(--panel-2);
  border-radius: 0 0 12px 12px;
  font-size: 11px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.code-view-footer a {
  color: var(--accent);
  text-decoration: none;
}

.code-view-footer a:hover {
  text-decoration: underline;
}