:root {
  color-scheme: light;
  --canvas: #f8f4f6;
  --surface: #fffdfd;
  --surface-muted: #f3edef;
  --ink: #251820;
  --ink-soft: #71666d;
  --line: #ded4d9;
  --line-strong: #b9aeb4;
  --accent: #c90069;
  --accent-soft: #fae4ef;
  --success: #147a4b;
  --success-soft: #e5f4ec;
  --warning: #98610b;
  --warning-soft: #fff3d9;
  --danger: #b42318;
  --danger-soft: #fdebea;
  --info: #315b81;
  --info-soft: #e9f1f8;
  --shadow: 0 18px 48px rgb(49 28 39 / 8%);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--canvas);
  color: var(--ink);
}

body {
  min-width: 320px;
  margin: 0;
  background: linear-gradient(90deg, var(--accent) 0 7px, transparent 7px), var(--canvas);
}

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

button,
a,
input,
select,
summary {
  outline-offset: 3px;
}

:focus-visible {
  outline: 3px solid rgb(201 0 105 / 25%);
}

button {
  border: 0;
}

a {
  color: var(--accent);
}

.page-header {
  display: flex;
  width: min(100% - 64px, 1420px);
  margin: 0 auto;
  padding: 40px 0 30px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
}

.page-header__copy {
  max-width: 760px;
}

.brand {
  display: inline-flex;
  margin-bottom: 30px;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 780;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand__mark {
  width: 17px;
  height: 17px;
  border: 5px solid var(--accent);
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px var(--surface);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 680px;
  margin-bottom: 14px;
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 760;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

h2 {
  margin-bottom: 0;
  font-size: 25px;
  font-weight: 740;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

h3 {
  margin-bottom: 6px;
  font-size: 16px;
  letter-spacing: -0.015em;
}

.page-header__lead {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.65;
}

.header-links {
  display: flex;
  padding-top: 4px;
  gap: 24px;
  white-space: nowrap;
}

.header-links a {
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.header-links a:hover {
  color: var(--accent);
}

.safety-strip {
  display: flex;
  width: min(100% - 64px, 1420px);
  margin: 0 auto 20px;
  align-items: center;
  gap: 0;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 650;
}

.safety-strip span {
  display: inline-flex;
  align-items: center;
}

.safety-strip span::before {
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--success);
  content: '';
}

.safety-strip span + span::after {
  width: 1px;
  height: 16px;
  margin: 0 16px;
  order: -1;
  background: var(--line);
  content: '';
}

.status-rail {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  width: min(100% - 64px, 1420px);
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.status-item {
  display: grid;
  min-width: 0;
  padding: 15px 18px 16px 0;
  grid-template-columns: 12px minmax(0, 1fr);
  column-gap: 8px;
}

.status-item + .status-item {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.status-item__signal {
  width: 8px;
  height: 8px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--line-strong);
  box-shadow: 0 0 0 4px rgb(185 174 180 / 14%);
}

.status-item[data-state='ready'] .status-item__signal {
  background: var(--success);
  box-shadow: 0 0 0 4px rgb(20 122 75 / 12%);
}

.status-item[data-state='warning'] .status-item__signal {
  background: var(--warning);
  box-shadow: 0 0 0 4px rgb(152 97 11 / 12%);
}

.status-item[data-state='error'] .status-item__signal {
  background: var(--danger);
  box-shadow: 0 0 0 4px rgb(180 35 24 / 12%);
}

.status-item__label {
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.status-item strong {
  min-width: 0;
  margin-top: 3px;
  grid-column: 2;
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.playground-shell {
  display: grid;
  grid-template-columns: minmax(330px, 430px) minmax(0, 1fr);
  width: min(100% - 64px, 1420px);
  margin: 34px auto 0;
  overflow: visible;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.request-workspace,
.review-workspace {
  min-width: 0;
  padding: 30px;
}

.request-workspace {
  border-right: 1px solid var(--line);
}

.section-heading,
.diagnostics__header,
.panel-toolbar,
.contract-intro {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.section-heading {
  margin-bottom: 28px;
}

.text-button {
  padding: 2px 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-size: 12px;
  font-weight: 750;
}

.text-button:disabled {
  border-bottom-color: transparent;
  color: var(--line-strong);
  cursor: default;
}

.asset-field {
  position: relative;
}

.asset-field > label,
.field-label,
.advanced-settings label {
  display: block;
  margin-bottom: 7px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 780;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.asset-combobox {
  position: relative;
}

.asset-combobox input,
.amount-field,
.advanced-settings input,
.advanced-settings select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}

.asset-combobox input,
.advanced-settings input,
.advanced-settings select {
  padding: 0 42px 0 14px;
}

.asset-combobox input:focus,
.advanced-settings input:focus,
.advanced-settings select:focus,
.amount-field:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgb(201 0 105 / 9%);
  outline: none;
}

.asset-combobox__caret {
  position: absolute;
  top: 50%;
  right: 15px;
  color: var(--ink-soft);
  font-size: 18px;
  pointer-events: none;
  transform: translateY(-55%);
}

.asset-options {
  position: absolute;
  z-index: 20;
  top: calc(100% + 7px);
  right: 0;
  left: 0;
  max-height: 270px;
  margin: 0;
  padding: 6px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 16px 40px rgb(49 28 39 / 15%);
  list-style: none;
}

.asset-options[hidden] {
  display: none;
}

.asset-option {
  display: grid;
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2px 12px;
  cursor: pointer;
}

.asset-option:hover,
.asset-option[aria-selected='true'] {
  background: var(--surface-muted);
}

.asset-option strong {
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.asset-option small {
  color: var(--ink-soft);
  font-size: 11px;
}

.asset-option code {
  grid-column: 1 / -1;
  overflow: hidden;
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.field-meta {
  min-height: 17px;
  margin: 5px 0 0;
  overflow: hidden;
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.flip-button {
  display: grid;
  width: 34px;
  height: 34px;
  margin: 5px auto;
  border: 1px solid var(--line);
  border-radius: 50%;
  place-items: center;
  background: var(--surface);
  color: var(--accent);
  cursor: pointer;
  font-size: 17px;
  transition:
    transform 160ms ease,
    border-color 160ms ease;
}

.flip-button:hover {
  border-color: var(--accent);
  transform: rotate(180deg);
}

.mode-control {
  display: grid;
  margin: 25px 0 20px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 11px;
  grid-template-columns: repeat(2, 1fr);
  background: var(--surface-muted);
}

.mode-control legend {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.mode-control label {
  position: relative;
  cursor: pointer;
}

.mode-control input {
  position: absolute;
  opacity: 0;
}

.mode-control span {
  display: block;
  padding: 10px 8px;
  border-radius: 7px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 720;
  text-align: center;
}

.mode-control input:checked + span {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 2px 8px rgb(49 28 39 / 8%);
}

.mode-control input:focus-visible + span {
  outline: 3px solid rgb(201 0 105 / 25%);
}

.amount-field {
  display: flex;
  align-items: center;
  padding-right: 14px;
}

.amount-field input {
  min-width: 0;
  height: 46px;
  padding: 0 10px 0 14px;
  border: 0;
  background: transparent;
  font-size: 19px;
  font-weight: 720;
  outline: none;
}

.amount-field span {
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 760;
}

.field-error {
  margin: 6px 0 0;
  color: var(--danger);
  font-size: 12px;
}

.advanced-settings {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.advanced-settings summary {
  padding: 14px 0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 740;
}

.advanced-settings__grid {
  display: grid;
  padding: 5px 0 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

.advanced-settings label {
  margin: 0;
}

.advanced-settings input,
.advanced-settings select {
  min-height: 42px;
  margin-top: 7px;
  padding: 0 10px;
  font-size: 12px;
  text-transform: none;
}

.input-suffix {
  display: flex;
  margin-top: 7px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}

.input-suffix:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgb(201 0 105 / 9%);
}

.input-suffix input {
  min-width: 0;
  margin: 0;
  border: 0;
  box-shadow: none;
}

.input-suffix > span {
  padding-right: 12px;
  color: var(--ink-soft);
}

.privacy-control {
  display: flex;
  margin: 20px 0 0;
  padding: 14px;
  align-items: flex-start;
  gap: 11px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fffbfd;
  cursor: pointer;
}

.privacy-control input {
  width: 17px;
  height: 17px;
  margin: 2px 0 0;
  accent-color: var(--accent);
}

.privacy-control span {
  display: grid;
  gap: 4px;
}

.privacy-control strong {
  font-size: 12px;
}

.privacy-control small,
.action-note {
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.5;
}

.request-actions {
  display: grid;
  margin-top: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.autonomy-status {
  min-height: 1.5em;
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 11px;
}

.wallet-preparation {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.wallet-preparation > summary {
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 12px;
}

.wallet-preparation > button {
  width: 100%;
  margin-top: 12px;
}

.primary-action,
.secondary-action {
  min-height: 48px;
  padding: 10px 13px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 780;
  transition:
    transform 140ms ease,
    box-shadow 140ms ease,
    background 140ms ease;
}

.primary-action {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px rgb(201 0 105 / 20%);
}

.secondary-action {
  border: 1px solid var(--ink);
  background: var(--surface);
  color: var(--ink);
}

.primary-action:hover:not(:disabled),
.secondary-action:hover:not(:disabled) {
  transform: translateY(-1px);
}

.primary-action:disabled,
.secondary-action:disabled {
  border-color: var(--line);
  background: var(--surface-muted);
  color: var(--line-strong);
  box-shadow: none;
  cursor: not-allowed;
}

.action-note {
  margin: 8px 0 0;
  text-align: center;
}

.review-heading {
  margin-bottom: 22px;
}

.freshness-label {
  max-width: 220px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
  text-align: right;
}

.freshness-label[data-state='stale'] {
  color: var(--warning);
}

.freshness-label[data-state='fresh'] {
  color: var(--success);
}

.tab-list {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.tab-list button {
  position: relative;
  flex: 0 0 auto;
  padding: 11px 0 12px;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 11px;
  font-weight: 760;
}

.tab-list button[aria-selected='true'] {
  color: var(--ink);
}

.tab-list button[aria-selected='true']::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--accent);
  content: '';
}

#history-count {
  display: inline-grid;
  min-width: 18px;
  min-height: 18px;
  margin-left: 3px;
  border-radius: 9px;
  place-items: center;
  background: var(--surface-muted);
  font-size: 10px;
}

.tab-panel {
  min-height: 500px;
  padding-top: 24px;
}

.tab-panel[hidden] {
  display: none;
}

.empty-state {
  display: grid;
  min-height: 420px;
  align-content: center;
  justify-items: center;
  padding: 30px;
  color: var(--ink-soft);
  text-align: center;
}

.empty-state h3 {
  color: var(--ink);
}

.empty-state p {
  max-width: 440px;
  margin-bottom: 0;
  font-size: 13px;
  line-height: 1.6;
}

.empty-state__mark {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 50%;
  place-items: center;
  color: var(--accent);
  font-size: 22px;
}

.review-card {
  animation: review-enter 240ms ease-out both;
}

.review-card__banner {
  display: flex;
  margin-bottom: 24px;
  padding: 14px 0;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.review-card__banner span {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.review-card__banner strong {
  font-size: 13px;
}

.review-card__banner[data-state='ready'] strong {
  color: var(--success);
}

.review-card__banner[data-state='blocked'] strong {
  color: var(--danger);
}

.trade-summary {
  display: grid;
  margin-bottom: 27px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.trade-summary__amount {
  min-width: 0;
}

.trade-summary__amount span {
  display: block;
  margin-bottom: 6px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.trade-summary__amount strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: clamp(23px, 3vw, 36px);
  font-weight: 750;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.trade-summary__amount small {
  color: var(--ink-soft);
  font-size: 11px;
}

.review-grid {
  display: grid;
  margin: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.review-grid > div {
  min-width: 0;
  padding: 14px 16px 14px 0;
  border-bottom: 1px solid var(--line);
}

.review-grid > div:nth-child(even) {
  padding-right: 0;
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.review-grid dt {
  margin-bottom: 5px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.review-grid dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.5;
}

.route-line {
  display: flex;
  margin: 24px 0;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
}

.route-line span {
  flex: 0 0 auto;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
}

.route-line i {
  width: 22px;
  height: 1px;
  flex: 0 0 22px;
  background: var(--accent);
}

.warning-list,
.diff-list {
  display: grid;
  margin: 22px 0 0;
  padding: 0;
  gap: 8px;
  list-style: none;
}

.warning-item,
.diff-item {
  display: grid;
  padding: 10px 12px;
  border-left: 3px solid var(--warning);
  border-radius: 4px;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  background: var(--warning-soft);
  font-size: 11px;
}

.warning-item[data-severity='critical'] {
  border-left-color: var(--danger);
  background: var(--danger-soft);
}

.warning-item code,
.diff-item code {
  font-size: 10px;
  font-weight: 760;
}

.warning-item p,
.diff-item p {
  margin: 0;
  grid-column: 1 / -1;
  color: var(--ink-soft);
  line-height: 1.45;
}

.diff-heading {
  margin: 25px 0 8px;
  font-size: 13px;
}

.diff-item {
  border-left-color: var(--info);
  background: var(--info-soft);
}

.diff-item[data-changed='false'] {
  border-left-color: var(--line-strong);
  background: var(--surface-muted);
}

.unsigned-note {
  margin: 22px 0 0;
  padding: 12px;
  border: 1px solid #b8ddc9;
  border-radius: 8px;
  background: var(--success-soft);
  color: var(--success);
  font-size: 11px;
  font-weight: 720;
  text-align: center;
}

.panel-toolbar {
  margin-bottom: 12px;
  align-items: center;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
}

pre,
.call-trace__json {
  max-width: 100%;
  margin: 0;
  padding: 18px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #231b20;
  color: #faedf4;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}

.call-trace {
  display: grid;
  gap: 18px;
}

.call-trace__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.call-trace__header code {
  color: var(--accent);
  font-size: 13px;
  font-weight: 760;
}

.call-trace__header span {
  color: var(--ink-soft);
  font-size: 11px;
}

.history-list {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 0;
  list-style: none;
}

.history-entry {
  display: grid;
  padding: 14px 0;
  grid-template-columns: 86px minmax(0, 1fr) auto;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  animation: history-enter 180ms ease-out both;
}

.history-entry time,
.history-entry small {
  color: var(--ink-soft);
  font-size: 10px;
}

.history-entry strong {
  overflow: hidden;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-entry__status {
  color: var(--success);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
}

.history-entry__status[data-state='error'] {
  color: var(--danger);
}

.history-entry__status[data-state='superseded'] {
  color: var(--warning);
}

.empty-history {
  padding: 40px 0;
  color: var(--ink-soft);
  font-size: 12px;
  text-align: center;
}

.contract-intro {
  margin-bottom: 18px;
}

.contract-intro p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 12px;
}

.contract-intro a {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 760;
}

.tool-list {
  display: grid;
  gap: 0;
}

.tool-entry {
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.tool-entry__heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
}

.tool-entry code {
  color: var(--accent);
  font-size: 11px;
  font-weight: 760;
}

.tool-entry span {
  color: var(--success);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.tool-entry p {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.5;
}

.diagnostics {
  width: min(100% - 64px, 1420px);
  margin: 32px auto 60px;
  padding: 28px 0 0;
  border-top: 1px solid var(--line);
}

.diagnostics__header {
  margin-bottom: 20px;
}

.provenance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.provenance-grid > div {
  display: grid;
  min-width: 0;
  min-height: 76px;
  padding: 14px;
  align-content: center;
  gap: 5px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.provenance-grid span {
  color: var(--ink-soft);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.provenance-grid strong {
  overflow: hidden;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.diagnostic-message {
  margin-top: 14px;
  padding: 12px 14px;
  border-left: 3px solid var(--info);
  background: var(--info-soft);
  color: var(--info);
  font-size: 11px;
  line-height: 1.5;
}

.diagnostic-message[data-state='error'] {
  border-left-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
}

.diagnostic-message[data-state='ready'] {
  border-left-color: var(--success);
  background: var(--success-soft);
  color: var(--success);
}

.engine-frame {
  position: fixed;
  z-index: -1;
  right: 0;
  bottom: 0;
  width: 1px;
  height: 1px;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

@keyframes review-enter {
  from {
    opacity: 0;
    transform: translateY(7px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes history-enter {
  from {
    opacity: 0;
    transform: translateX(-5px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@media (max-width: 980px) {
  .page-header,
  .safety-strip,
  .status-rail,
  .playground-shell,
  .diagnostics {
    width: min(100% - 40px, 760px);
  }

  .status-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .status-item:nth-child(4) {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .status-item:nth-child(5) {
    border-top: 1px solid var(--line);
  }

  .playground-shell {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 680px) {
  body {
    background: linear-gradient(90deg, var(--accent) 0 4px, transparent 4px), var(--canvas);
  }

  .page-header,
  .safety-strip,
  .status-rail,
  .playground-shell,
  .diagnostics {
    width: calc(100% - 28px);
  }

  .page-header {
    display: block;
    padding: 24px 0 22px;
  }

  .brand {
    margin-bottom: 24px;
  }

  h1 {
    font-size: 42px;
  }

  .header-links {
    margin-top: 20px;
  }

  .safety-strip {
    display: grid;
    gap: 7px;
  }

  .safety-strip span + span::after {
    display: none;
  }

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

  .status-item,
  .status-item + .status-item {
    padding: 12px 10px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .status-item:nth-child(odd) {
    padding-left: 0;
    border-right: 1px solid var(--line);
  }

  .status-item:nth-child(-n + 2) {
    border-top: 0;
  }

  .request-workspace,
  .review-workspace {
    padding: 22px 18px;
  }

  .advanced-settings__grid,
  .request-actions,
  .trade-summary,
  .review-grid,
  .provenance-grid {
    grid-template-columns: 1fr;
  }

  .review-grid > div:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .provenance-grid > div {
    min-height: 64px;
  }

  .history-entry {
    grid-template-columns: 70px minmax(0, 1fr);
  }

  .history-entry__status {
    grid-column: 2;
  }

  .tab-panel {
    min-height: 420px;
  }

  .empty-state {
    min-height: 350px;
    padding: 20px 0;
  }

  .contract-intro {
    display: block;
  }
}

@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;
  }
}