:root {
  --paper-50: #f7f4ef;
  --paper-100: #eee9df;
  --paper-200: #e1dacd;
  --ink-900: #172126;
  --ink-800: #25323a;
  --ink-700: #3f4e56;
  --ink-500: #6a767c;
  --ink-300: #a4adb1;
  --line: rgba(23, 33, 38, 0.16);
  --line-strong: rgba(23, 33, 38, 0.32);
  --accent: #0f766e;
  --accent-ink: #064e49;
  --accent-soft: #dcefeb;
  --amber: #b97913;
  --amber-soft: #fff2d8;
  --red: #b42318;
  --red-soft: #fde7e4;
  --blue: #2563a9;
  --blue-soft: #e4edf9;
  --green: #21734b;
  --green-soft: #e2f2e9;
  --shadow: 0 12px 30px rgba(23, 33, 38, 0.08);
  --sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { min-width: 320px; color-scheme: light; }

body {
  margin: 0;
  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.45;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent-ink); }

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

button:disabled,
textarea:disabled,
input:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 244, 239, 0.94);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand strong {
  display: block;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0;
}

.brand small {
  display: block;
  color: var(--ink-500);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--ink-700);
  font-size: 14px;
}

.warning-chip,
.badge,
.type-chip,
.citation-chip,
.evidence-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  color: var(--ink-700);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1;
  padding: 6px 9px;
}

.warning-chip {
  border-color: rgba(185, 121, 19, 0.45);
  background: var(--amber-soft);
  color: #714709;
}

#app-root {
  min-height: calc(100vh - 68px);
}

.page {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 24px;
}

.page-narrow {
  max-width: 1180px;
}

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.eyebrow,
.kicker,
.panel-title,
.group-label,
.meta,
.record-id {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-500);
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 780px;
  font-size: 42px;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.04;
}

.lede {
  max-width: 720px;
  margin-top: 12px;
  color: var(--ink-700);
  font-size: 17px;
}

.primary-action,
.secondary-action,
.ghost-action,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  border: 1px solid var(--ink-900);
  background: var(--ink-900);
  color: var(--paper-50);
  padding: 9px 14px;
  font-size: 14px;
  font-weight: 500;
}

.secondary-action,
.ghost-action,
.icon-button {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink-900);
}

.ghost-action {
  border-color: transparent;
  color: var(--ink-700);
}

.primary-action:hover { background: var(--ink-700); }
.secondary-action:hover,
.ghost-action:hover,
.icon-button:hover {
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink-900);
}

.detail-shell {
  display: grid;
  grid-template-columns: minmax(250px, 0.82fr) minmax(440px, 1.46fr) minmax(280px, 0.9fr);
  min-height: calc(100vh - 120px);
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.24);
}

.top-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.breadcrumb {
  color: var(--ink-700);
  font-family: var(--mono);
  font-size: 12px;
}

.detail-panel {
  min-width: 0;
  border-right: 1px solid var(--line);
  background: rgba(247, 244, 239, 0.58);
}

.detail-panel:last-child { border-right: 0; }

.panel-header {
  position: sticky;
  top: 68px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 244, 239, 0.96);
}

.panel-body {
  padding: 14px 16px 18px;
}

.artifact-group + .artifact-group { margin-top: 18px; }

.group-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.artifact-row {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  width: 100%;
  padding: 10px 0;
  border: 0;
  border-bottom: 1px dashed var(--line);
  background: transparent;
  color: inherit;
  text-align: left;
}

.artifact-row:hover .artifact-title { color: var(--accent-ink); }

.type-icon {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.46);
  color: var(--ink-700);
  font-family: var(--mono);
  font-size: 11px;
}

.artifact-title,
.message strong,
.alert-card h3 {
  overflow-wrap: anywhere;
}

.artifact-title {
  font-weight: 500;
  line-height: 1.25;
}

.artifact-meta {
  margin-top: 4px;
  color: var(--ink-500);
  font-size: 12px;
}

.workflow-row {
  position: sticky;
  top: 68px;
  z-index: 6;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
  background: rgba(247, 244, 239, 0.98);
}

.workflow-row button {
  min-height: 50px;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--ink-800);
  padding: 8px 10px;
  font-size: 13px;
}

.workflow-row button:last-child { border-right: 0; }
.workflow-row button:hover { background: rgba(255, 255, 255, 0.62); }

.thread-context {
  display: grid;
  gap: 10px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.thread-context h2 {
  font-size: 22px;
  font-weight: 500;
}

.thread-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.thread-select {
  max-width: 100%;
  min-height: 36px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink-900);
  padding: 7px 10px;
}

.budget-banner,
.inline-error,
.empty-state,
.callout {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.45);
  color: var(--ink-700);
  padding: 12px;
}

.budget-banner,
.callout.warning {
  border-color: rgba(185, 121, 19, 0.45);
  background: var(--amber-soft);
  color: #714709;
}

.inline-error {
  border-color: rgba(180, 35, 24, 0.35);
  background: var(--red-soft);
  color: var(--red);
}

.message-list {
  display: grid;
  gap: 14px;
  padding: 16px;
  min-height: 360px;
}

.message {
  max-width: 82%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.6);
  padding: 13px 14px;
}

.message.user {
  justify-self: end;
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.message.assistant {
  justify-self: start;
}

.message .markdown > * + * { margin-top: 10px; }
.message ul,
.message ol { padding-left: 20px; }
.message code,
.message pre {
  font-family: var(--mono);
  font-size: 0.92em;
}

.citation-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.citation-chip {
  border-color: rgba(15, 118, 110, 0.35);
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.composer {
  position: sticky;
  bottom: 0;
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  background: rgba(247, 244, 239, 0.98);
}

.composer-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
}

.composer textarea {
  min-height: 48px;
  max-height: 160px;
  resize: vertical;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.64);
  color: var(--ink-900);
  padding: 11px 12px;
}

.affordance {
  color: var(--ink-500);
  font-family: var(--mono);
  font-size: 11px;
}

.right-stack {
  display: grid;
  gap: 18px;
}

.alert-card {
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  background: rgba(255, 255, 255, 0.46);
  padding: 12px;
}

.alert-card + .alert-card { margin-top: 10px; }
.alert-card.warning { border-left-color: var(--amber); }
.alert-card.critical { border-left-color: var(--red); }

.severity {
  color: var(--blue);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.severity.warning { color: var(--amber); }
.severity.critical { color: var(--red); }

.alert-card h3 {
  margin-top: 6px;
  font-size: 15px;
  font-weight: 500;
}

.alert-card .markdown {
  margin-top: 8px;
  color: var(--ink-700);
  font-size: 13px;
}

.evidence-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.citation-card {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.46);
  color: inherit;
  padding: 12px;
  text-align: left;
}

.citation-card + .citation-card { margin-top: 10px; }
.citation-card:hover { border-color: var(--accent); }
.citation-card .excerpt {
  margin-top: 8px;
  color: var(--ink-700);
  font-size: 13px;
}

dialog {
  width: min(920px, calc(100vw - 32px));
  max-height: calc(100vh - 40px);
  border: 1px solid var(--line-strong);
  background: var(--paper-50);
  color: var(--ink-900);
  padding: 0;
  box-shadow: var(--shadow);
}

dialog::backdrop {
  background: rgba(23, 33, 38, 0.42);
  backdrop-filter: blur(2px);
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.modal-head h2 {
  font-size: 21px;
  font-weight: 500;
}

.modal-body {
  max-height: calc(100vh - 152px);
  overflow: auto;
  padding: 20px;
}

.field-grid {
  display: grid;
  gap: 14px;
}

.form-field {
  display: grid;
  gap: 6px;
}

.form-field label {
  color: var(--ink-700);
  font-size: 13px;
  font-weight: 500;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink-900);
  padding: 10px 11px;
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.artifact-content {
  display: grid;
  gap: 16px;
}

.artifact-header-block,
.transcript-turn,
.rendered-page {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.46);
  padding: 14px;
}

.text-block {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.rendered-page {
  min-height: 360px;
  display: grid;
  place-items: center;
  color: var(--ink-500);
}

.rendered-page img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
}

#toast-root {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 50;
  display: grid;
  gap: 10px;
  width: min(380px, calc(100vw - 36px));
}

.toast {
  border: 1px solid var(--line);
  background: var(--paper-50);
  color: var(--ink-900);
  box-shadow: var(--shadow);
  padding: 12px 14px;
}

.toast.success { border-left: 4px solid var(--green); }
.toast.warning { border-left: 4px solid var(--amber); }
.toast.error { border-left: 4px solid var(--red); }

.loading-view {
  max-width: 900px;
  margin: 60px auto;
  padding: 0 24px;
}

.skeleton {
  border-radius: 3px;
  background: linear-gradient(90deg, rgba(23,33,38,0.08), rgba(23,33,38,0.14), rgba(23,33,38,0.08));
  background-size: 220% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
}

.skeleton-title { width: 56%; height: 44px; margin-bottom: 18px; }
.skeleton-row { width: 100%; height: 18px; margin-bottom: 12px; }
.skeleton-row.short { width: 66%; }

.stream-cursor::after {
  content: "";
  display: inline-block;
  width: 7px;
  height: 1em;
  margin-left: 3px;
  vertical-align: -0.15em;
  background: var(--accent);
  animation: blink 900ms steps(2, start) infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes blink {
  50% { opacity: 0; }
}

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

  .detail-panel {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .detail-panel:last-child { border-bottom: 0; }

  .panel-header,
  .workflow-row {
    top: 68px;
  }
}

@media (max-width: 760px) {
  .site-header,
  .page-head,
  .top-strip,
  .thread-tools {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    flex-wrap: wrap;
  }

  .page {
    padding: 20px 14px;
  }

  h1 {
    font-size: 32px;
  }

  .workflow-row {
    grid-template-columns: 1fr;
  }

  .workflow-row button {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    justify-content: flex-start;
  }

  .message {
    max-width: 100%;
  }

  .composer-row {
    grid-template-columns: 1fr;
  }
}

/* Demo v2 overrides: modern product-tool UI. Landing uses /static/landing/styles.css. */
:root {
  --d-bg: #fafbfc;
  --d-surface: #ffffff;
  --d-surface-2: #f4f6f8;
  --d-surface-3: #eceff3;
  --d-text: #0f1a2a;
  --d-text-2: #475569;
  --d-text-3: #6b7785;
  --d-text-4: #94a0ae;
  --d-line: #e4e8ee;
  --d-line-strong: #cdd3db;
  --d-accent-blue: #2a6be0;
  --d-accent-blue-soft: #eaf0fd;
  --d-accent-amber: #b47b1e;
  --d-accent-amber-soft: #faf1de;
  --d-accent-clay: #b14a2e;
  --d-accent-clay-soft: #fae8e1;
  --d-accent-moss: #4f6b45;
  --d-accent-moss-soft: #e8eee3;
  --d-radius-sm: 4px;
  --d-radius: 6px;
  --d-radius-lg: 10px;
  --d-shadow-pop: 0 1px 2px rgba(15,26,42,0.04), 0 0 0 1px rgba(15,26,42,0.06);
  --d-shadow-modal: 0 24px 80px -24px rgba(15,26,42,0.30), 0 0 0 1px rgba(15,26,42,0.08);
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

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

body {
  background: var(--d-bg);
  color: var(--d-text);
  font-size: 14px;
  line-height: 1.5;
}

.site-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  height: 52px;
  min-height: 52px;
  padding: 0 20px;
  border-bottom: 1px solid var(--d-line);
  background: var(--d-surface);
  backdrop-filter: none;
}

.brand {
  gap: 10px;
  padding: 6px 8px;
  margin-left: -8px;
  border-radius: var(--d-radius);
}

.brand:hover {
  background: var(--d-surface-2);
  color: var(--d-text);
}

.brand img {
  width: 24px;
  height: 24px;
}

.brand span {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.brand strong {
  color: var(--d-text);
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0;
}

.brand small {
  padding: 2px 6px;
  border: 1px solid var(--d-line);
  border-radius: 999px;
  color: var(--d-text-3);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: none;
}

.top-nav {
  justify-self: end;
  gap: 12px;
  font-size: 13px;
}

.top-nav a {
  padding: 6px 10px;
  border-radius: var(--d-radius);
  color: var(--d-text-2);
}

.top-nav a:hover {
  background: var(--d-surface-2);
  color: var(--d-text);
}

.warning-chip,
.synthetic-chip {
  border-color: rgba(180,123,30,0.16);
  background: var(--d-accent-amber-soft);
  color: var(--d-accent-amber);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0;
}

#app-root {
  height: calc(100vh - 52px);
  min-height: 0;
  overflow: hidden;
}

.page {
  max-width: none;
}

.badge {
  border-color: var(--d-line);
  background: var(--d-surface-2);
  color: var(--d-text-2);
  font-size: 11.5px;
  letter-spacing: 0;
}

.primary-action,
.secondary-action,
.ghost-action,
.icon-button {
  border-radius: var(--d-radius);
}

.detail-view-page {
  height: 100%;
  padding: 0;
  overflow: hidden;
}

.detail-shell {
  display: grid;
  grid-template-columns: minmax(240px, 280px) minmax(420px, 1fr) minmax(300px, 340px);
  height: 100%;
  min-height: 0;
  border: 0;
  background: var(--d-bg);
  overflow: hidden;
}

.detail-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  border-right: 1px solid var(--d-line);
  background: var(--d-surface);
}

.detail-panel:last-child {
  border-right: 0;
}

.detail-panel[aria-label="Conversation"] {
  background: var(--d-bg);
}

.panel-header {
  position: static;
  flex-shrink: 0;
  min-height: 40px;
  height: 40px;
  padding: 0 16px;
  border-bottom: 1px solid var(--d-line);
  background: var(--d-surface);
  color: var(--d-text-3);
  font-size: 12px;
  font-weight: 500;
}

.panel-title,
.group-label,
.kicker,
.meta,
.affordance {
  color: var(--d-text-3);
  font-family: var(--sans);
  letter-spacing: 0;
  text-transform: none;
}

.panel-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0;
}

.right-stack {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  gap: 0;
  padding: 0;
}

.right-stack > section {
  display: flex;
  flex: 1;
  min-height: 0;
  flex-direction: column;
}

.right-stack > section + section {
  border-top: 1px solid var(--d-line);
}

.right-stack > section > .panel-body {
  padding: 8px 12px 16px;
}

.artifact-group {
  margin: 0;
}

.group-label {
  display: flex;
  justify-content: space-between;
  padding: 14px 16px 6px;
  color: var(--d-text-3);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.artifact-row {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 8px;
  width: 100%;
  padding: 7px 16px 7px 12px;
  border: 0;
  border-left: 2px solid transparent;
  background: transparent;
  color: inherit;
  text-align: left;
}

.artifact-row:hover {
  background: var(--d-surface-2);
}

.icon-tile,
.type-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: 0;
  border-radius: var(--d-radius-sm);
  background: var(--d-surface-2);
  color: var(--d-text-2);
  font-family: var(--d-mono);
  font-size: 9px;
}

.icon-tile svg {
  display: block;
}

.artifact-row .title,
.artifact-title {
  display: -webkit-box;
  overflow: hidden;
  color: var(--d-text);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.35;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.artifact-row .meta,
.artifact-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
  color: var(--d-text-3);
  font-size: 11.5px;
}

.artifact-row .ocr {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--d-accent-amber-soft);
  color: var(--d-accent-amber);
  font-size: 10px;
  font-weight: 500;
}

.conversation,
.middle-stack {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.middle-top {
  flex-shrink: 0;
  border-bottom: 1px solid var(--d-line);
  background: var(--d-surface);
}

.thread-context {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 28px 12px;
  border: 0;
  background: transparent;
}

.thread-context-copy {
  min-width: 0;
}

.memory-note-action {
  flex: 0 0 auto;
}

.thread-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.thread-context h2 {
  margin: 0;
  color: var(--d-text);
  font-size: 17px;
  font-weight: 650;
  letter-spacing: 0;
}

.thread-context .sub {
  margin-top: 3px;
  color: var(--d-text-3);
  font-size: 12.5px;
}

.workflow-row {
  position: static;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  overflow-x: auto;
  padding: 0 28px 12px;
  border: 0;
  background: transparent;
}

.workflow-btn,
.workflow-row button {
  flex: 0 0 auto;
  min-height: 0;
  padding: 6px 11px;
  border: 1px solid var(--d-line);
  border-radius: var(--d-radius);
  background: var(--d-surface);
  color: var(--d-text);
  font-size: 12.5px;
  font-weight: 500;
}

.workflow-btn::before {
  content: "";
  width: 3px;
  height: 3px;
  margin-right: 2px;
  border-radius: 999px;
  background: var(--d-text-4);
}

.workflow-btn.new-chat {
  border-color: var(--d-text);
  background: var(--d-text);
  color: var(--d-surface);
}

.account-candidates {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.account-candidate {
  padding: 6px 11px;
  border: 1px solid var(--d-line);
  border-radius: var(--d-radius);
  background: var(--d-surface);
  color: var(--d-text);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
}

.account-candidate:hover {
  border-color: var(--d-text);
  background: var(--d-surface-2, var(--d-surface));
}

.workflow-row button:hover {
  border-color: var(--d-text);
  background: var(--d-text);
  color: var(--d-surface);
}

.thread-history {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 0 28px 14px;
}

.thread-chip,
.thread-history-empty {
  flex: 0 0 auto;
  max-width: 220px;
  overflow: hidden;
  border: 1px solid var(--d-line);
  border-radius: 999px;
  background: var(--d-surface-2);
  color: var(--d-text-2);
  padding: 4px 10px;
  font-size: 11.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.thread-chip.active {
  border-color: var(--d-text);
  background: var(--d-text);
  color: var(--d-surface);
}

.message-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 24px 28px 28px;
  background: var(--d-bg);
}

.message {
  max-width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
}

.message + .message {
  margin-top: 24px;
}

.message.user {
  justify-self: end;
  max-width: 78%;
  margin-left: auto;
  border-radius: var(--d-radius-lg) var(--d-radius-lg) var(--d-radius-sm);
  background: var(--d-text);
  color: var(--d-surface);
  padding: 7px 11px;
  line-height: 1.4;
}

.message.assistant {
  color: var(--d-text);
  line-height: 1.45;
}

.composer {
  position: static;
  flex-shrink: 0;
  padding: 14px 28px 18px;
  border-top: 1px solid var(--d-line);
  background: var(--d-surface);
}

.composer-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
  padding: 6px;
  border: 1px solid var(--d-line);
  border-radius: var(--d-radius-lg);
  background: var(--d-surface);
}

.composer textarea {
  min-height: 36px;
  border: 0;
  background: transparent;
  padding: 8px 10px;
  resize: none;
}

.composer textarea:focus {
  outline: 0;
}

.composer .primary-action {
  min-height: 36px;
  border: 0;
  border-radius: var(--d-radius);
  background: var(--d-text);
}

.affordance {
  display: block;
  margin-top: 7px;
  font-size: 11.5px;
}

.alert-card,
.citation-card {
  width: 100%;
  margin-bottom: 8px;
  border: 1px solid var(--d-line);
  border-radius: var(--d-radius);
  background: var(--d-surface);
  padding: 12px 14px;
  text-align: left;
}

.alert-card {
  border-left-width: 1px;
}

.alert-card:hover,
.citation-card:hover {
  border-color: var(--d-line-strong);
}

.severity {
  display: inline-flex;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--d-accent-blue-soft);
  color: var(--d-accent-blue);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: none;
}

.severity.warning {
  background: var(--d-accent-amber-soft);
  color: var(--d-accent-amber);
}

.severity.critical {
  background: var(--d-accent-clay-soft);
  color: var(--d-accent-clay);
}

.alert-card h3,
.citation-card h3 {
  margin-top: 6px;
  color: var(--d-text);
  font-size: 13px;
  font-weight: 650;
}

.evidence-chip,
.citation-chip {
  border: 1px solid var(--d-line);
  border-radius: 999px;
  background: var(--d-surface);
  color: var(--d-text-2);
  font-family: var(--d-mono);
  font-size: 10.5px;
  letter-spacing: 0;
}

.evidence-chip {
  padding: 2px 8px;
  cursor: pointer;
}

.citation-chip {
  padding: 4px 10px 4px 8px;
}

.citation-chip .pin {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--d-accent-blue);
}

.empty-state {
  margin: 16px;
  border: 0;
  background: transparent;
  color: var(--d-text-3);
  text-align: center;
}

dialog {
  border-radius: var(--d-radius-lg);
  background: var(--d-surface);
  box-shadow: var(--d-shadow-modal);
}

.modal-head {
  border-bottom-color: var(--d-line);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.modal-head-text {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
  flex: 1 1 auto;
}

.modal-head-text > div {
  min-width: 0;
}

.modal-body {
  background: var(--d-bg);
}

.modal-type-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.document-page {
  max-width: 760px;
  min-height: 720px;
  margin: 0 auto;
  padding: 42px 52px;
  border: 1px solid var(--d-line);
  border-radius: var(--d-radius);
  background: var(--d-surface);
  box-shadow: 0 1px 2px rgba(15, 26, 42, 0.04);
  color: var(--d-text);
}

.document-page h1,
.document-page h2,
.document-page h3,
.document-page h4 {
  margin: 0 0 14px;
  color: var(--d-text);
  font-size: 20px;
  line-height: 1.2;
}

.document-page h2,
.document-page h3 {
  margin-top: 24px;
  font-size: 15px;
  text-transform: uppercase;
  color: var(--d-text-2);
}

.document-page p {
  margin: 0 0 12px;
}

.document-page ul,
.document-page ol {
  margin: 8px 0 16px;
  padding-left: 22px;
}

.docx-page {
  font-size: 14px;
  line-height: 1.65;
}

.email-body {
  max-width: 72ch;
  color: var(--d-text);
  font-size: 14px;
  line-height: 1.62;
}

.email-body p {
  margin: 0 0 12px;
}

.artifact-header-block {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 16px;
  max-width: 760px;
  margin-bottom: 18px;
  border-color: var(--d-line);
  border-radius: var(--d-radius);
  background: var(--d-surface);
}

.artifact-header-block p {
  display: contents;
}

.artifact-header-block strong {
  color: var(--d-text-3);
  font-size: 12px;
  font-weight: 600;
}

@media (max-width: 1180px) {
  html,
  body {
    overflow: auto;
  }

  #app-root {
    height: auto;
    min-height: calc(100vh - 52px);
    overflow: visible;
  }

  .detail-shell {
    grid-template-columns: 1fr;
    height: auto;
    min-height: calc(100vh - 52px);
    overflow: visible;
  }

  .detail-panel {
    min-height: 280px;
    border-right: 0;
    border-bottom: 1px solid var(--d-line);
  }
}

/* Demo v3 overrides: Clock Design warm-paper product interface. */
:root {
  --d-bg: #f7f4ee;
  --d-bg-sunken: #f1ece2;
  --d-surface: #fbf9f4;
  --d-surface-strong: #ffffff;
  --d-text: #1a1815;
  --d-text-2: #4a453d;
  --d-text-3: #807b72;
  --d-text-4: #a8a39a;
  --d-line: rgba(26, 24, 21, 0.08);
  --d-line-strong: rgba(26, 24, 21, 0.14);
  --d-divider: rgba(26, 24, 21, 0.06);
  --d-accent-blue: #2a6be0;
  --d-accent-amber: #b47b1e;
  --d-accent-clay: #b14a2e;
  --d-accent-moss: #4f6b45;
  --d-radius-sm: 4px;
  --d-radius: 6px;
  --d-radius-lg: 8px;
  --d-shadow-pop: 0 2px 6px rgba(26, 24, 21, 0.04), 0 0 0 1px rgba(26, 24, 21, 0.04);
  --d-shadow-modal: 0 24px 80px -24px rgba(26, 24, 21, 0.25), 0 0 0 1px rgba(26, 24, 21, 0.06);
  --paper-50: var(--d-bg);
  --paper-100: var(--d-bg-sunken);
  --ink-900: var(--d-text);
  --ink-700: var(--d-text-2);
  --ink-500: var(--d-text-3);
  --line: var(--d-line);
  --line-strong: var(--d-line-strong);
  --accent: var(--d-text);
  --accent-ink: var(--d-text);
}

body {
  background: var(--d-bg);
  color: var(--d-text);
  font-family: var(--sans);
  font-size: 14px;
  font-feature-settings: "ss01", "cv11";
}

.site-header {
  grid-template-columns: auto 1fr auto;
  height: 52px;
  min-height: 52px;
  padding: 0 20px;
  background: var(--d-bg);
  border-bottom: 1px solid var(--d-line);
}

.brand:hover {
  background: var(--d-bg-sunken);
}

.brand img {
  width: 22px;
  height: 22px;
}

.brand strong {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
}

.brand small {
  display: none;
}

.top-nav {
  justify-self: end;
  gap: 8px;
  font-size: 13px;
}

.top-nav a {
  padding: 6px 10px;
  border-radius: var(--d-radius);
  color: var(--d-text-2);
}

.top-nav a:hover {
  background: var(--d-bg-sunken);
  color: var(--d-text);
}

.synthetic-chip {
  display: inline-flex;
  align-items: center;
  order: -1;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid rgba(180, 123, 30, 0.24);
  border-radius: 999px;
  background: transparent;
  color: var(--d-accent-amber);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.2;
  white-space: nowrap;
}

.synthetic-chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--d-accent-amber);
  box-shadow: 0 0 0 3px rgba(180, 123, 30, 0.12);
}

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--d-text-2);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
}

.status-dot .dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--d-text-3);
}

.status-dot.stalled {
  color: var(--d-accent-clay);
}

.status-dot.stalled .dot {
  background: var(--d-accent-clay);
  box-shadow: 0 0 0 3px rgba(177, 74, 46, 0.12);
}

.status-dot.midfunnel {
  color: var(--d-accent-amber);
}

.status-dot.midfunnel .dot {
  background: var(--d-accent-amber);
  box-shadow: 0 0 0 3px rgba(180, 123, 30, 0.12);
}

.status-dot.late {
  color: var(--d-accent-moss);
}

.status-dot.late .dot {
  background: var(--d-accent-moss);
  box-shadow: 0 0 0 3px rgba(79, 107, 69, 0.12);
}

.detail-view-page {
  background: var(--d-bg);
}

.detail-shell {
  grid-template-columns: minmax(260px, 320px) minmax(420px, 1fr) minmax(300px, 340px);
  background: var(--d-bg);
}

.detail-panel {
  border-right: 1px solid var(--d-line);
  background: var(--d-bg-sunken);
}

.detail-panel[aria-label="Conversation"] {
  background: var(--d-bg);
}

.detail-panel[aria-label="Citations and alerts"] {
  background: var(--d-bg-sunken);
}

.panel-header {
  min-height: 48px;
  height: 48px;
  padding: 0 18px;
  border-bottom: 0;
  background: transparent;
}

.panel-title,
.group-label,
.kicker {
  color: var(--d-text-3);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.badge {
  border: 0;
  background: transparent;
  color: var(--d-text-3);
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0;
  padding: 0;
}

.group-label {
  padding: 18px 18px 8px;
  letter-spacing: 0;
  text-transform: none;
}

.artifact-row {
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 8px;
  padding: 7px 18px;
  border-left: 0;
}

.artifact-row:hover {
  background: rgba(251, 249, 244, 0.72);
}

.icon-tile,
.type-icon {
  width: 18px;
  height: 18px;
  background: transparent;
  color: var(--d-text-3);
}

.artifact-row .title,
.artifact-title {
  color: var(--d-text);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.28;
}

.artifact-row .meta,
.artifact-meta {
  color: var(--d-text-3);
  font-size: 11.5px;
  line-height: 1.25;
}

.middle-top {
  border-bottom: 0;
  background: transparent;
}

.thread-context {
  padding: 24px 32px 10px;
}

.memory-note-action {
  margin-top: 4px;
  border-color: rgba(180, 123, 30, 0.38);
  background: rgba(251, 249, 244, 0.86);
  color: var(--d-text);
  font-size: 12.5px;
  box-shadow: 0 0 0 0 rgba(180, 123, 30, 0);
  animation: note-action-flash 6.5s ease-in-out infinite;
}

.session-reset-action {
  margin-top: 4px;
  border-color: var(--d-line-strong);
  background: transparent;
  color: var(--d-text-2);
  font-size: 12.5px;
}

.session-reset-action:hover {
  border-color: var(--d-text-3);
  background: rgba(251, 249, 244, 0.72);
  color: var(--d-text);
}

.memory-note-action:hover {
  border-color: rgba(180, 123, 30, 0.62);
  background: rgba(250, 241, 222, 0.88);
  color: var(--d-text);
}

@keyframes note-action-flash {
  0%,
  70%,
  100% {
    border-color: rgba(180, 123, 30, 0.38);
    background: rgba(251, 249, 244, 0.86);
    box-shadow: 0 0 0 0 rgba(180, 123, 30, 0);
  }

  76% {
    border-color: rgba(180, 123, 30, 0.78);
    background: rgba(250, 224, 171, 0.96);
    box-shadow: 0 0 0 3px rgba(180, 123, 30, 0.10);
  }

  82% {
    border-color: rgba(180, 123, 30, 0.42);
    background: rgba(251, 249, 244, 0.9);
    box-shadow: 0 0 0 0 rgba(180, 123, 30, 0);
  }

  88% {
    border-color: rgba(180, 123, 30, 0.66);
    background: rgba(250, 236, 207, 0.96);
    box-shadow: 0 0 0 2px rgba(180, 123, 30, 0.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  .memory-note-action {
    animation: none;
  }
}

.thread-context h2 {
  max-width: 20ch;
  margin-top: 8px;
  color: var(--d-text);
  font-size: 22px;
  font-weight: 650;
  letter-spacing: 0;
  line-height: 1.08;
}

.thread-context .sub {
  max-width: 32ch;
  margin-top: 8px;
  color: var(--d-text-3);
  font-size: 13px;
  line-height: 1.35;
}

.workflow-row {
  gap: 8px;
  padding: 0 32px 8px;
}

.workflow-btn,
.workflow-row button {
  padding: 5px 10px;
  border-color: var(--d-line);
  border-radius: var(--d-radius);
  background: rgba(251, 249, 244, 0.8);
  color: var(--d-text-2);
  font-size: 12.5px;
  font-weight: 500;
}

.workflow-btn.new-chat {
  border-color: var(--d-line-strong);
  background: var(--d-text);
  color: var(--d-bg);
}

.workflow-row button:hover {
  border-color: var(--d-line-strong);
  background: var(--d-bg-sunken);
  color: var(--d-text);
}

.workflow-btn.new-chat:hover {
  background: var(--d-text);
  color: var(--d-bg);
}

.thread-history {
  padding: 0 32px 12px;
}

.thread-chip,
.thread-history-empty {
  border-color: var(--d-line);
  background: rgba(251, 249, 244, 0.68);
  color: var(--d-text-3);
}

.thread-chip.active {
  border-color: var(--d-line-strong);
  background: var(--d-bg-sunken);
  color: var(--d-text);
}

.message-list {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 18px 32px 22px;
  background: var(--d-bg);
}

.message + .message {
  margin-top: 18px;
}

.message.user {
  flex: 0 0 auto;
  align-self: flex-end;
  width: fit-content;
  max-width: min(78%, 560px);
  padding: 6px 10px;
  border: 1px solid var(--d-line);
  border-radius: var(--d-radius);
  background: var(--d-surface);
  color: var(--d-text);
  font-size: 13.5px;
  line-height: 1.35;
  box-shadow: var(--d-shadow-pop);
}

.message.assistant {
  max-width: 72ch;
  color: var(--d-text);
  font-size: 14px;
  line-height: 1.52;
}

.message .markdown p,
.message .markdown ul,
.message .markdown ol {
  margin-bottom: 10px;
}

.inline-citation {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  margin: 0 2px;
  padding: 1px 6px 2px;
  border: 1px solid var(--d-line-strong);
  border-radius: 999px;
  background: rgba(251, 249, 244, 0.9);
  color: var(--d-text-2);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.35;
  vertical-align: baseline;
}

.inline-citation:hover {
  border-color: var(--d-text-3);
  background: var(--d-bg-sunken);
  color: var(--d-text);
}

.inline-citation.muted {
  color: var(--d-text-3);
}

.answer-block + .answer-block {
  margin-top: 12px;
}

.answer-block-citations {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.composer {
  padding: 12px 32px 16px;
  border-top: 0;
  background: var(--d-bg);
}

.composer-row {
  gap: 8px;
  padding: 6px;
  border-color: var(--d-line-strong);
  border-radius: var(--d-radius-lg);
  background: var(--d-surface);
  box-shadow: var(--d-shadow-pop);
}

.composer textarea {
  min-height: 34px;
  max-height: 110px;
  padding: 8px 10px;
  color: var(--d-text);
}

.composer .primary-action {
  min-width: 38px;
  min-height: 34px;
  padding: 0 12px;
  border-radius: var(--d-radius);
  background: var(--d-text);
  color: var(--d-bg);
}

.button-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(247, 244, 238, 0.35);
  border-top-color: var(--d-bg);
  border-radius: 999px;
  animation: button-spin 760ms linear infinite;
}

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

.affordance {
  margin-top: 8px;
  color: var(--d-text-3);
  font-family: var(--d-mono);
  font-size: 11px;
}

.right-stack > section > .panel-body {
  padding: 0 18px 14px;
}

.alert-card,
.citation-card {
  margin-bottom: 0;
  padding: 12px 6px;
  border: 0;
  border-bottom: 1px solid var(--d-divider);
  border-radius: 0;
  background: transparent;
}

.alert-card:hover,
.citation-card:hover {
  background: rgba(251, 249, 244, 0.6);
}

.severity {
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--d-accent-blue);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.severity.warning {
  background: transparent;
  color: var(--d-accent-amber);
}

.severity.critical {
  background: transparent;
  color: var(--d-accent-clay);
}

.alert-card h3,
.citation-card h3 {
  margin-top: 6px;
  font-size: 13.5px;
  font-weight: 650;
}

.alert-card .markdown,
.citation-card .excerpt {
  color: var(--d-text-2);
  font-size: 13px;
  line-height: 1.45;
}

.evidence-list {
  margin-top: 8px;
}

.evidence-chip,
.citation-chip {
  border-color: var(--d-line);
  background: rgba(251, 249, 244, 0.78);
  color: var(--d-text-2);
  font-family: var(--d-mono);
  font-size: 11px;
}

.citation-card {
  display: block;
}

.citation-card .citation-chip {
  margin-bottom: 6px;
}

.empty-state {
  margin: 8px 0;
  padding: 12px 6px;
  color: var(--d-text-3);
  text-align: left;
}

dialog {
  background: var(--d-surface-strong);
}

.modal-head .icon-button {
  width: 36px;
  min-width: 36px;
  min-height: 36px;
  padding: 0;
  border-radius: var(--d-radius);
  font-size: 20px;
  line-height: 1;
  flex-shrink: 0;
}

.modal-body {
  background: var(--d-bg);
}

.modal-body .callout.warning {
  margin-bottom: 18px;
}

.document-page,
.artifact-header-block {
  border-color: var(--d-line);
  background: var(--d-surface-strong);
}

.word-document {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 56px;
  background: #fffdf8;
  box-shadow: 0 18px 50px rgba(23, 33, 38, 0.16);
}

.word-document h1 {
  margin-bottom: 8px;
  color: var(--d-text);
  font-size: 32px;
  font-weight: 650;
  line-height: 1.08;
}

.word-document h2:first-of-type {
  margin-top: 0;
  color: var(--d-text-2);
  font-size: 17px;
  font-weight: 500;
}

.word-document h2,
.word-document h3 {
  margin-top: 28px;
}

.memory-shell {
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr) minmax(260px, 340px);
}

.control-panel-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px 18px 18px;
}

.account-picker {
  display: grid;
  gap: 8px;
}

.account-picker select {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--d-line-strong);
  border-radius: var(--d-radius);
  background: var(--d-surface);
  color: var(--d-text);
  padding: 0 10px;
}

.workflow-stack {
  display: grid;
  gap: 8px;
}

.workflow-stack .workflow-btn {
  justify-content: flex-start;
  width: 100%;
  min-height: 34px;
}

.sidebar-thread-history {
  display: grid;
  gap: 8px;
  padding: 0;
}

.sidebar-thread-history .thread-chip,
.sidebar-thread-history .thread-history-empty {
  width: 100%;
  justify-content: flex-start;
}

.sidebar-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: auto;
}

.source-panel .panel-header {
  padding: 0 18px;
}

.source-panel .artifact-group {
  border-bottom: 1px solid var(--d-divider);
  padding: 0;
}

.source-panel .artifact-group summary {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  padding: 10px 18px;
}

.source-panel .artifact-group summary::-webkit-details-marker {
  display: none;
}

.source-panel .artifact-group summary::before {
  content: "+";
  display: inline-flex;
  justify-content: center;
  width: 14px;
  color: var(--d-text-3);
  font-weight: 500;
  line-height: 1;
}

.source-panel .artifact-group[open] summary::before {
  content: "−";
}

.source-panel .artifact-group summary > span:first-of-type {
  color: var(--d-text-3);
  font-size: 12px;
  font-weight: 500;
}

.source-panel .artifact-group summary > span:last-of-type {
  color: var(--d-text-3);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.source-panel .artifact-row {
  margin: 0 0 6px 0;
}

.thread-history-group {
  border-top: 1px solid var(--d-divider);
  margin-top: 4px;
}

.thread-history-group > summary {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  padding: 12px 0 8px;
  color: var(--d-text-3);
  font-size: 12px;
  font-weight: 500;
}

.thread-history-group > summary::-webkit-details-marker {
  display: none;
}

.thread-history-group > summary::before {
  content: "+";
  display: inline-flex;
  justify-content: center;
  width: 14px;
  color: var(--d-text-3);
  font-weight: 500;
  line-height: 1;
}

.thread-history-group[open] > summary::before {
  content: "−";
}

.thread-history-group > summary > span:last-of-type {
  color: var(--d-text-3);
  font-variant-numeric: tabular-nums;
}

.thread-history-list {
  display: flex;
  flex-direction: column;
  max-height: 280px;
  overflow-y: auto;
  padding: 2px 0 8px;
  gap: 0;
}

.thread-row {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 7px 10px 7px 22px;
  border: 0;
  border-left: 2px solid transparent;
  background: transparent;
  color: var(--d-text-2);
  text-align: left;
  font-size: 13px;
  line-height: 1.3;
  cursor: pointer;
}

.thread-row:hover {
  background: rgba(251, 249, 244, 0.72);
  color: var(--d-text);
}

.thread-row.active {
  border-left-color: var(--d-text);
  background: rgba(251, 249, 244, 0.86);
  color: var(--d-text);
  font-weight: 500;
}

.thread-row-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.thread-history-empty {
  display: block;
  padding: 8px 22px;
  color: var(--d-text-3);
  font-size: 12.5px;
}

@media (max-width: 1180px) {
  .detail-shell {
    grid-template-columns: 1fr;
  }

  .detail-panel {
    border-right: 0;
  }
}

@media (max-width: 760px) {
  .site-header {
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
    height: auto;
    min-height: 0;
    gap: 8px;
    padding: 10px 14px;
  }

  .thread-context {
    display: block;
  }

  .memory-note-action {
    margin-top: 14px;
  }

  .top-nav {
    justify-self: start;
    flex-wrap: wrap;
  }

  #app-root {
    height: calc(100vh - 93px);
  }
}