:root {
  color-scheme: dark;
  --canvas: #0b0f12;
  --rail: #0d1216;
  --surface: #11171b;
  --surface-2: #151d22;
  --surface-3: #1a242a;
  --line: #273238;
  --line-strong: #39464d;
  --text: #eef3f1;
  --text-muted: #8e9b9c;
  --text-faint: #5f6c6e;
  --accent: #72f1ae;
  --accent-ink: #07120c;
  --accent-soft: #173326;
  --warning: #e5b95f;
  --danger: #f18479;
  --focus: #b8fbd5;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
  --rail-width: 228px;
  --topbar-height: 70px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

:root[data-theme="light"] {
  color-scheme: light;
  --canvas: #eef1ee;
  --rail: #e5eae6;
  --surface: #f8faf8;
  --surface-2: #f0f4f1;
  --surface-3: #e8eeea;
  --line: #ccd5cf;
  --line-strong: #aebcb3;
  --text: #111815;
  --text-muted: #56635c;
  --text-faint: #7b8780;
  --accent: #137c4b;
  --accent-ink: #f5fff9;
  --accent-soft: #d8eee1;
  --warning: #9a6815;
  --danger: #b64239;
  --focus: #0b6038;
  --shadow: 0 18px 42px rgba(28, 48, 36, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

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

button {
  color: inherit;
}

button,
label,
input[type="checkbox"],
input[type="radio"] {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.46;
}

[hidden] {
  display: none !important;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  transform: translateY(-150%);
  border: 1px solid var(--accent);
  background: var(--surface);
  color: var(--text);
}

.skip-link:focus {
  transform: translateY(0);
}

.app-shell {
  min-height: 100vh;
}

.app-rail {
  position: fixed;
  z-index: 30;
  inset: 0 auto 0 0;
  display: flex;
  width: var(--rail-width);
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: var(--rail);
}

.brand {
  display: flex;
  min-height: var(--topbar-height);
  align-items: center;
  gap: 12px;
  padding: 0 22px;
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  display: grid;
  width: 28px;
  height: 28px;
  grid-template-columns: repeat(2, 1fr);
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line-strong);
}

.brand-mark i {
  display: block;
  background: var(--text-faint);
}

.brand-mark i:first-child,
.brand-mark i:last-child {
  background: var(--accent);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1;
  letter-spacing: 0.12em;
}

.brand-copy strong {
  font-size: 15px;
}

.brand-copy small {
  margin-top: 5px;
  color: var(--text-muted);
  font-size: 9px;
  letter-spacing: 0.28em;
}

.rail-nav {
  display: grid;
  gap: 4px;
  padding: 24px 12px;
}

.nav-item {
  position: relative;
  display: grid;
  min-height: 46px;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--text-muted);
  text-align: left;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.nav-item:hover {
  background: var(--surface);
  color: var(--text);
}

.nav-item.is-active {
  border-color: var(--line);
  background: var(--surface-2);
  color: var(--text);
}

.nav-item.is-active::before {
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: -13px;
  width: 2px;
  background: var(--accent);
  content: "";
}

.nav-index {
  color: var(--text-faint);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.nav-item.is-active .nav-index {
  color: var(--accent);
}

.nav-count {
  min-width: 22px;
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 10px;
  text-align: center;
}

.rail-footer {
  display: grid;
  gap: 12px;
  margin-top: auto;
  padding: 16px;
  border-top: 1px solid var(--line);
}

.connection {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
}

.connection > span:last-child {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.connection small {
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.connection strong {
  overflow: hidden;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-light {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.status-light.is-pending {
  background: var(--warning);
  box-shadow: none;
}

.status-light.is-error {
  background: var(--danger);
  box-shadow: none;
}

.theme-toggle {
  display: flex;
  min-height: 38px;
  align-items: center;
  gap: 10px;
  padding: 0 10px;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.theme-toggle:hover {
  color: var(--text);
}

.app-main {
  min-height: 100vh;
  margin-left: var(--rail-width);
}

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  min-height: var(--topbar-height);
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 32px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--canvas) 94%, transparent);
  backdrop-filter: blur(14px);
}

.breadcrumb,
.save-state {
  margin: 0;
}

.breadcrumb {
  color: var(--text-muted);
  font-size: 12px;
}

.save-state {
  margin-top: 2px;
  color: var(--text-faint);
  font-size: 10px;
}

.topbar-actions,
.heading-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.environment-badge {
  display: inline-flex;
  height: 28px;
  align-items: center;
  gap: 7px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.environment-badge i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.mobile-menu {
  display: none;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  cursor: pointer;
}

.app-view {
  width: min(1500px, 100%);
  margin: 0 auto;
  padding: 44px 42px 72px;
}

.view-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 30px;
}

.view-heading h1 {
  margin: 3px 0 8px;
  font-size: clamp(30px, 3vw, 46px);
  font-weight: 650;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.view-heading > div > p:last-child {
  max-width: 650px;
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
}

.overline,
.section-number {
  margin: 0;
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.17em;
}

.build-id {
  display: flex;
  min-width: 120px;
  flex-direction: column;
  align-items: flex-end;
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.build-id strong {
  margin-top: 3px;
  color: var(--text-muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.builder-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 292px;
  gap: 18px;
  align-items: start;
}

.builder-workspace,
.config-summary,
.queue-overview,
.run-card,
.table-shell,
.trace-detail,
.tag-category {
  border: 1px solid var(--line);
  background: var(--surface);
}

.builder-workspace {
  min-width: 0;
  box-shadow: var(--shadow);
}

.stepper {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.stepper li + li {
  border-left: 1px solid var(--line);
}

.step-button {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 88px;
  grid-template-columns: 30px 1fr;
  grid-template-rows: auto auto;
  align-content: center;
  gap: 0 8px;
  padding: 15px;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  text-align: left;
  cursor: pointer;
}

.step-button:hover {
  background: var(--surface-2);
}

.step-button::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: transparent;
  content: "";
}

.step-button.is-active,
.step-button.is-complete {
  color: var(--text);
}

.step-button.is-active::after {
  background: var(--accent);
}

.step-button > span {
  grid-row: 1 / span 2;
  align-self: center;
  color: var(--text-faint);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.step-button.is-active > span,
.step-button.is-complete > span {
  color: var(--accent);
}

.step-button strong {
  font-size: 13px;
  font-weight: 650;
}

.step-button small {
  color: var(--text-faint);
  font-size: 10px;
}

.form-step {
  padding: 28px 30px 6px;
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin: 4px 0 0;
  font-size: 25px;
  font-weight: 630;
  letter-spacing: -0.035em;
}

.section-state {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 10px;
}

.field-block {
  min-width: 0;
  margin-bottom: 26px;
}

.field-grid {
  display: grid;
  gap: 22px;
}

.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field-block > label,
.field-label-row label,
.metric-input > span {
  display: block;
  margin-bottom: 9px;
  color: var(--text);
  font-size: 12px;
  font-weight: 650;
}

.field-block label b {
  color: var(--accent);
}

.field-label-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 9px;
}

.field-label-row label {
  margin: 0;
}

.field-label-row > span,
.field-meta {
  color: var(--text-faint);
  font-size: 10px;
}

input[type="text"],
input[type="number"],
input[type="search"],
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--canvas);
  color: var(--text);
  transition: border-color 160ms ease, background 160ms ease;
}

input[type="text"],
input[type="number"],
input[type="search"] {
  min-height: 44px;
  padding: 0 12px;
}

textarea {
  min-height: 110px;
  resize: vertical;
  padding: 12px 13px;
  line-height: 1.65;
}

input:hover,
textarea:hover,
input:focus,
textarea:focus {
  border-color: var(--line-strong);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-faint);
}

.field-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 7px;
}

.preset-scroller {
  display: grid;
  grid-auto-columns: minmax(170px, 1fr);
  grid-auto-flow: column;
  gap: 8px;
  overflow-x: auto;
  padding: 1px 1px 8px;
  scrollbar-color: var(--line-strong) transparent;
  scrollbar-width: thin;
}

.preset-card,
.product-preset-card,
.tag-button,
.scenario-card {
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.preset-card:hover,
.product-preset-card:hover,
.tag-button:hover,
.scenario-card:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.preset-card {
  min-height: 96px;
  padding: 12px;
  border-radius: 7px;
  text-align: left;
}

.preset-card span,
.product-preset-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.preset-card strong,
.product-preset-card strong {
  display: block;
  color: var(--text);
  font-size: 12px;
}

.preset-card p,
.product-preset-card p {
  display: -webkit-box;
  overflow: hidden;
  margin: 5px 0 0;
  color: var(--text-faint);
  font-size: 10px;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.preset-card.is-selected,
.product-preset-card.is-selected,
.tag-button.is-selected,
.scenario-card.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
}

.preset-card.is-selected span,
.product-preset-card.is-selected span {
  color: var(--accent);
}

.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag-button {
  min-height: 34px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 11px;
}

.tag-button.is-selected::before {
  margin-right: 6px;
  color: var(--accent);
  content: "✓";
}

.segmented-control {
  display: inline-grid;
  grid-template-columns: repeat(2, 1fr);
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--canvas);
}

.segmented-control label {
  cursor: pointer;
}

.segmented-control input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented-control span {
  display: flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 0 13px;
  border-radius: 5px;
  color: var(--text-muted);
  font-size: 11px;
}

.segmented-control input:checked + span {
  background: var(--surface-3);
  color: var(--text);
}

.segmented-control input:focus-visible + span {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.conditional-field {
  margin-top: 12px;
  padding: 14px;
  border-left: 2px solid var(--accent);
  background: var(--surface-2);
}

.conditional-field > label {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 600;
}

.taxonomy-config {
  padding: 18px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
}

.taxonomy-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}

.taxonomy-heading h3 {
  margin: 4px 0 3px;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.taxonomy-heading p:last-child {
  margin: 0;
  color: var(--text-muted);
  font-size: 10px;
}

.matrix-total {
  min-width: 88px;
  padding: 10px 12px;
  border-left: 2px solid var(--accent);
  background: var(--canvas);
  text-align: right;
}

.matrix-total small {
  display: block;
  color: var(--text-faint);
  font-size: 8px;
  letter-spacing: 0.1em;
}

.matrix-total strong {
  display: block;
  margin-top: 2px;
  color: var(--accent);
  font-size: 22px;
  font-variant-numeric: tabular-nums;
}

.taxonomy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(250px, 0.65fr);
  gap: 12px;
}

.taxonomy-column {
  min-width: 0;
  padding: 13px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.intent-list,
.information-state-list {
  display: grid;
  gap: 6px;
  margin-top: 9px;
}

.intent-list {
  max-height: 340px;
  overflow-y: auto;
  padding-right: 3px;
  scrollbar-color: var(--line-strong) transparent;
  scrollbar-width: thin;
}

.intent-option,
.information-option {
  position: relative;
  display: grid;
  width: 100%;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text-muted);
  text-align: left;
  cursor: pointer;
}

.information-option {
  grid-template-columns: 1fr auto;
  min-height: 58px;
}

.intent-option:hover,
.information-option:hover {
  border-color: var(--line-strong);
}

.intent-option.is-selected,
.information-option.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
}

.intent-code {
  min-width: 36px;
  color: var(--accent);
  font-size: 9px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.intent-copy,
.information-copy {
  min-width: 0;
}

.intent-copy strong,
.information-copy strong {
  display: block;
  overflow: hidden;
  font-size: 10px;
  font-weight: 620;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.intent-copy small,
.information-copy small {
  display: block;
  overflow: hidden;
  margin-top: 2px;
  color: var(--text-faint);
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.intent-check,
.information-ratio {
  color: var(--text-faint);
  font-size: 9px;
}

.intent-option.is-selected .intent-check {
  color: var(--accent);
}

.matrix-resolution {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 18px;
  margin-top: 12px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  background: var(--canvas);
}

.matrix-resolution small {
  color: var(--text-faint);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.matrix-resolution p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 9px;
}

.matrix-resolution p.is-error {
  color: var(--danger);
}

.check-list {
  display: grid;
  gap: 7px;
}

.check-list.horizontal {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.check-item {
  display: grid;
  min-height: 46px;
  grid-template-columns: 18px 1fr;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-2);
  color: var(--text-muted);
  cursor: pointer;
}

.check-item:hover {
  border-color: var(--line-strong);
}

.check-item:has(input:checked) {
  border-color: var(--accent);
  color: var(--text);
}

.check-item input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--accent);
}

.check-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.check-copy strong {
  font-size: 11px;
  font-weight: 600;
}

.check-copy small {
  overflow: hidden;
  color: var(--text-faint);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-preset-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.product-preset-card {
  min-height: 118px;
  padding: 14px;
  border-radius: 7px;
  text-align: left;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.scenario-card {
  position: relative;
  min-height: 86px;
  padding: 12px;
  border-radius: 7px;
  text-align: left;
}

.scenario-card::after {
  position: absolute;
  top: 10px;
  right: 10px;
  color: var(--text-faint);
  content: "+";
}

.scenario-card.is-selected::after {
  color: var(--accent);
  content: "✓";
}

.scenario-card strong {
  display: block;
  color: var(--text);
  font-size: 11px;
}

.scenario-card p {
  margin: 7px 20px 0 0;
  color: var(--text-faint);
  font-size: 9px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 28px;
}

.metric-input {
  display: block;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-2);
}

.metric-input input {
  min-height: 50px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  font-size: 25px;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.metric-input small {
  display: block;
  margin-top: 8px;
  color: var(--text-faint);
  font-size: 9px;
}

.runtime-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  background: var(--surface-2);
}

.runtime-note .status-light {
  margin-top: 6px;
}

.runtime-note strong {
  font-size: 11px;
}

.runtime-note p {
  margin: 3px 0 0;
  color: var(--text-muted);
  font-size: 10px;
}

.review-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.review-card {
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--surface-2);
}

.review-card small {
  display: block;
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.review-card strong {
  display: block;
  margin-top: 6px;
  font-size: 13px;
}

.review-card p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 10px;
}

.coverage-check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 13px 14px;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  color: var(--text);
  font-size: 11px;
}

.coverage-check.is-error {
  border-color: var(--danger);
  background: color-mix(in srgb, var(--danger) 12%, var(--surface));
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 30px 22px;
  border-top: 1px solid var(--line);
}

.form-actions-spacer {
  flex: 1;
}

.primary-button,
.ghost-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 15px;
  border-radius: 7px;
  font-size: 11px;
  font-weight: 650;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.primary-button {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

.primary-button:hover:not(:disabled) {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--accent) 86%, white);
}

.ghost-button {
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text-muted);
}

.ghost-button:hover:not(:disabled) {
  border-color: var(--line-strong);
  color: var(--text);
}

.ghost-button.compact {
  min-height: 32px;
  padding: 0 10px;
  font-size: 10px;
}

.launch-button {
  min-width: 178px;
}

.config-summary {
  position: sticky;
  top: calc(var(--topbar-height) + 18px);
}

.summary-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.summary-header i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.summary-block {
  padding: 15px 16px;
  border-bottom: 1px solid var(--line);
}

.summary-block > small,
.summary-telemetry small {
  display: block;
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.summary-block > strong {
  display: block;
  margin-top: 6px;
  font-size: 12px;
}

.summary-block p {
  margin: 5px 0 0;
  color: var(--text-muted);
  font-size: 10px;
}

.mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 8px;
}

.mini-tag {
  padding: 3px 6px;
  border: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 9px;
}

.summary-telemetry {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-bottom: 1px solid var(--line);
}

.summary-telemetry > div {
  padding: 15px 16px;
}

.summary-telemetry > div + div {
  border-left: 1px solid var(--line);
}

.summary-telemetry strong {
  display: block;
  margin-top: 4px;
  color: var(--accent);
  font-size: 19px;
  font-variant-numeric: tabular-nums;
}

.trace-preview {
  padding: 16px;
}

.trace-heading,
.trace-line {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.trace-heading {
  margin-bottom: 12px;
  color: var(--text-faint);
  font-size: 9px;
}

.trace-heading span {
  color: var(--warning);
}

.trace-line {
  justify-content: flex-start;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.trace-line b {
  min-width: 32px;
  color: var(--text-faint);
  font-size: 9px;
}

.trace-line.user b {
  color: var(--accent);
}

.trace-line p {
  margin: 0;
  color: var(--text-muted);
  font-size: 10px;
}

.queue-overview {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  margin-bottom: 14px;
}

.queue-metric {
  min-height: 92px;
  padding: 16px;
}

.queue-metric + .queue-metric {
  border-left: 1px solid var(--line);
}

.queue-metric small {
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.09em;
}

.queue-metric strong {
  display: block;
  margin-top: 6px;
  font-size: 24px;
  font-variant-numeric: tabular-nums;
}

.queue-metric.primary strong {
  color: var(--accent);
}

.run-list {
  display: grid;
  gap: 8px;
}

.run-card {
  display: grid;
  min-height: 86px;
  grid-template-columns: minmax(170px, 1.2fr) minmax(180px, 2fr) 110px 110px;
  align-items: center;
  gap: 18px;
  padding: 14px 16px;
}

.run-card-title small,
.run-card-cell small {
  display: block;
  color: var(--text-faint);
  font-size: 9px;
}

.run-card-title strong,
.run-card-cell strong {
  display: block;
  margin-top: 4px;
  overflow: hidden;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.run-progress {
  height: 3px;
  overflow: hidden;
  background: var(--surface-3);
}

.run-progress i {
  display: block;
  width: var(--progress, 8%);
  height: 100%;
  background: var(--accent);
  transition: width 320ms ease;
}

.run-card.is-failed .run-progress i {
  background: var(--danger);
}

.run-status {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 10px;
}

.run-status::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--warning);
  content: "";
}

.run-card.is-complete .run-status::before {
  background: var(--accent);
}

.run-card.is-failed .run-status::before {
  background: var(--danger);
}

.empty-queue,
.empty-table {
  padding: 54px 20px;
  border: 1px dashed var(--line);
  color: var(--text-muted);
  text-align: center;
}

.empty-queue strong,
.empty-table strong {
  display: block;
  color: var(--text);
}

.empty-queue p,
.empty-table p {
  margin: 5px 0 0;
  font-size: 11px;
}

.dataset-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 12px;
}

.search-field {
  width: min(420px, 100%);
}

.dataset-stats {
  display: flex;
  gap: 18px;
  color: var(--text-muted);
  font-size: 10px;
}

.dataset-stats strong {
  margin-right: 4px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.dataset-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.8fr);
  gap: 12px;
  align-items: start;
}

.table-shell {
  min-width: 0;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

th,
td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--text-faint);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

tbody tr {
  cursor: pointer;
}

tbody tr:hover,
tbody tr.is-selected {
  background: var(--surface-2);
}

td strong {
  display: block;
  max-width: 190px;
  overflow: hidden;
  color: var(--text);
  text-overflow: ellipsis;
  white-space: nowrap;
}

td small {
  color: var(--text-faint);
}

.table-tags {
  display: flex;
  max-width: 240px;
  flex-wrap: wrap;
  gap: 4px;
}

.table-tag {
  padding: 2px 5px;
  border: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 8px;
}

.validation-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-muted);
  font-size: 9px;
}

.validation-badge::before {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.validation-badge.review::before {
  background: var(--warning);
}

.trace-detail {
  position: sticky;
  top: calc(var(--topbar-height) + 18px);
  max-height: calc(100vh - var(--topbar-height) - 36px);
  overflow-y: auto;
}

.empty-state {
  display: grid;
  min-height: 300px;
  place-content: center;
  padding: 24px;
  color: var(--text-muted);
  text-align: center;
}

.empty-state span {
  color: var(--accent);
  font-size: 9px;
  letter-spacing: 0.16em;
}

.empty-state strong {
  margin-top: 8px;
  color: var(--text);
}

.empty-state p {
  margin: 5px 0 0;
  font-size: 10px;
}

.detail-header {
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.detail-header small {
  color: var(--accent);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.detail-header h2 {
  margin: 5px 0 4px;
  font-size: 17px;
}

.detail-header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 10px;
}

.detail-message {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.detail-message-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 7px;
}

.role-label {
  color: var(--text-faint);
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 0.08em;
}

.detail-message.user .role-label {
  color: var(--accent);
}

.turn-index {
  color: var(--text-faint);
  font-size: 9px;
  font-variant-numeric: tabular-nums;
}

.detail-message > p {
  margin: 0;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.65;
}

.message-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 9px;
}

.tag-library {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tag-category {
  min-height: 240px;
  padding: 20px;
}

.tag-category-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.tag-category-header small {
  color: var(--accent);
  font-size: 9px;
  letter-spacing: 0.13em;
}

.tag-category-header h2 {
  margin: 4px 0 0;
  font-size: 18px;
}

.tag-category-header span {
  color: var(--text-faint);
  font-size: 10px;
}

.library-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.library-tag {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  gap: 7px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 10px;
}

.library-tag button {
  width: 18px;
  height: 18px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-faint);
  cursor: pointer;
}

.library-tag.is-built-in button {
  display: none;
}

.tag-add-form {
  display: flex;
  gap: 8px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.tag-add-form input {
  min-width: 0;
}

.toast-region {
  position: fixed;
  z-index: 80;
  right: 18px;
  bottom: 18px;
  display: grid;
  width: min(360px, calc(100vw - 36px));
  gap: 8px;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px 14px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  box-shadow: var(--shadow);
  color: var(--text-muted);
  animation: toast-in 180ms ease both;
}

.toast::before {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.toast.is-error::before {
  background: var(--danger);
}

.toast strong {
  display: block;
  color: var(--text);
  font-size: 11px;
}

.toast p {
  margin: 2px 0 0;
  font-size: 10px;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1180px) {
  :root { --rail-width: 194px; }
  .brand { padding: 0 16px; }
  .app-view { padding-right: 26px; padding-left: 26px; }
  .builder-grid { grid-template-columns: minmax(0, 1fr) 252px; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .run-card { grid-template-columns: minmax(150px, 1fr) minmax(150px, 1.5fr) 90px; }
  .run-card-cell:last-child { display: none; }
}

@media (max-width: 960px) {
  :root { --rail-width: 78px; }
  .brand { justify-content: center; padding: 0; }
  .brand-copy, .nav-item > span:not(.nav-index), .rail-footer .connection span:last-child, .theme-toggle span:last-child { display: none; }
  .rail-nav { padding-right: 10px; padding-left: 10px; }
  .nav-item { grid-template-columns: 1fr; justify-items: center; padding: 0; }
  .nav-index { font-size: 11px; }
  .rail-footer { padding: 12px; }
  .connection { justify-content: center; padding: 12px 0; }
  .theme-toggle { justify-content: center; padding: 0; }
  .builder-grid { grid-template-columns: 1fr; }
  .config-summary { position: static; display: grid; grid-template-columns: repeat(2, 1fr); }
  .summary-header, .summary-telemetry, .trace-preview { grid-column: 1 / -1; }
  .summary-block:nth-of-type(3) { border-left: 1px solid var(--line); }
  .dataset-layout { grid-template-columns: 1fr; }
  .trace-detail { position: static; max-height: none; }
}

@media (max-width: 720px) {
  :root { --topbar-height: 62px; }
  .app-rail {
    width: min(300px, 84vw);
    transform: translateX(-102%);
    box-shadow: var(--shadow);
    transition: transform 200ms ease;
  }
  body.is-menu-open .app-rail { transform: translateX(0); }
  .brand { justify-content: flex-start; padding: 0 18px; }
  .brand-copy, .nav-item > span:not(.nav-index), .rail-footer .connection span:last-child, .theme-toggle span:last-child { display: flex; }
  .rail-nav { padding: 20px 12px; }
  .nav-item { grid-template-columns: 28px 1fr auto; justify-items: initial; padding: 0 10px; }
  .rail-footer { padding: 16px; }
  .connection, .theme-toggle { justify-content: flex-start; padding-right: 10px; padding-left: 10px; }
  .app-main { margin-left: 0; }
  .mobile-menu { display: inline-flex; align-items: center; }
  .topbar { padding: 0 16px; }
  .topbar > div:nth-child(2) { flex: 1; }
  .topbar-actions .environment-badge, .topbar-actions .ghost-button { display: none; }
  .app-view { padding: 30px 16px 100px; }
  .view-heading { align-items: flex-start; margin-bottom: 22px; }
  .view-heading h1 { font-size: 32px; }
  .build-id { display: none; }
  .builder-workspace { box-shadow: none; }
  .stepper { overflow-x: auto; grid-template-columns: repeat(4, minmax(132px, 1fr)); }
  .step-button { min-height: 74px; padding: 11px; }
  .form-step { padding: 22px 16px 4px; }
  .two-columns, .product-preset-grid, .scenario-grid, .review-panel, .tag-library { grid-template-columns: 1fr; }
  .taxonomy-grid, .matrix-resolution { grid-template-columns: 1fr; }
  .check-list.horizontal { grid-template-columns: 1fr; }
  .field-grid { gap: 0; }
  .form-actions { position: sticky; z-index: 10; bottom: 0; padding: 12px 16px; background: var(--surface); }
  .primary-button { gap: 10px; }
  .config-summary { grid-template-columns: 1fr; }
  .summary-header, .summary-telemetry, .trace-preview { grid-column: auto; }
  .summary-block:nth-of-type(3) { border-left: 0; }
  .queue-overview { grid-template-columns: repeat(2, 1fr); }
  .queue-metric + .queue-metric { border-left: 0; }
  .queue-metric:nth-child(even) { border-left: 1px solid var(--line); }
  .queue-metric:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .run-card { grid-template-columns: 1fr; gap: 10px; }
  .run-card-cell:last-child { display: block; }
  .dataset-heading { display: block; }
  .heading-actions { margin-top: 16px; }
  .dataset-toolbar { align-items: stretch; flex-direction: column; }
  .dataset-stats { justify-content: space-between; }
  .table-shell { margin-right: -16px; margin-left: -16px; border-right: 0; border-left: 0; }
  table { min-width: 680px; }
  .mobile-scrim {
    position: fixed;
    z-index: 25;
    inset: 0;
    background: rgba(0, 0, 0, 0.48);
  }
}

@media (max-width: 480px) {
  .view-heading > div > p:last-child { font-size: 13px; }
  .field-label-row { display: block; }
  .field-label-row > span { display: block; margin-top: 4px; }
  .segmented-control { width: 100%; }
  .metric-grid { grid-template-columns: 1fr; }
  .form-actions { gap: 8px; }
  .form-actions .ghost-button { padding: 0 10px; }
  .launch-button { min-width: 0; }
  .queue-overview { grid-template-columns: 1fr; }
  .queue-metric:nth-child(even) { border-left: 0; }
  .queue-metric + .queue-metric { border-top: 1px solid var(--line); }
  .heading-actions { align-items: stretch; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}