:root {
  color-scheme: light;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --canvas: #f4f2ec;
  --surface: #fbfaf7;
  --surface-raised: #ffffff;
  --surface-subtle: #efede6;
  --line: #d7d4cb;
  --line-strong: #bbb8ae;
  --ink: #17201e;
  --muted: #5f6965;
  --muted-light: #7b827f;
  --verified: #166047;
  --verified-bg: #e6f2ec;
  --warning: #7a4a00;
  --warning-bg: #fff4dc;
  --danger: #a12d2d;
  --danger-bg: #fff0ef;
  --info: #345b7e;
  --info-bg: #edf4fb;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow-low: 0 1px 2px rgba(23, 32, 30, 0.06), 0 8px 24px rgba(23, 32, 30, 0.04);
}

* {
  box-sizing: border-box;
}

.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;
}

html {
  min-height: 100%;
  background: var(--canvas);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--ink);
  background: var(--canvas);
}

button,
select {
  font: inherit;
}

button {
  border: 0;
}

.shell {
  width: min(1260px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0 36px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--ink);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: -0.035em;
}

.brand h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.035em;
}

.brand p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.status-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 28px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.badge::before {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.badge.info {
  border-color: #cfdae4;
  background: var(--info-bg);
  color: var(--info);
}

.case-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: end;
  margin-bottom: 18px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-raised);
  box-shadow: var(--shadow-low);
}

.eyebrow,
.panel-kicker {
  color: var(--verified);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 12px;
}

.case-copy h2 {
  max-width: 810px;
  margin: 0;
  font-size: clamp(2rem, 4.2vw, 3.35rem);
  font-weight: 710;
  line-height: 1.02;
  letter-spacing: -0.058em;
}

.case-copy > p:not(.eyebrow):not(.case-principle) {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(0.96rem, 1.4vw, 1.07rem);
  line-height: 1.65;
}

.case-principle {
  display: inline-block;
  margin: 22px 0 0;
  padding-top: 11px;
  border-top: 2px solid var(--verified);
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 760;
}

.case-summary {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.case-summary-item {
  display: grid;
  gap: 3px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.case-summary-item dt {
  color: var(--muted);
  font-size: 0.74rem;
}

.case-summary-item dd {
  margin: 0;
  font-size: 0.96rem;
  font-weight: 730;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.62fr) minmax(280px, 0.72fr);
  gap: 18px;
  align-items: stretch;
}

.panel {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-raised);
  box-shadow: var(--shadow-low);
}

.resolution-panel {
  grid-column: 1;
  grid-row: 1 / span 2;
  border-top: 3px solid var(--info);
  padding-top: 20px;
}

.account-panel {
  grid-column: 2;
  grid-row: 1;
}

.activity-panel {
  grid-column: 2;
  grid-row: 2;
  align-self: start;
}

.outcome-panel {
  grid-column: 1 / -1;
  grid-row: 3;
  padding: 0;
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.panel h3 {
  margin: 3px 0 0;
  font-size: 1.03rem;
  letter-spacing: -0.02em;
}

.account-plan {
  margin: 0 0 3px;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
}

.price {
  margin: 0 0 18px;
  color: var(--verified);
  font-size: 1rem;
  font-weight: 800;
}

.fact-list,
.effect-list,
.receipt-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.fact,
.effect,
.receipt-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.fact:last-child,
.effect:last-child,
.receipt-row:last-child {
  border-bottom: 0;
}

.fact dt,
.effect dt,
.receipt-row dt {
  color: var(--muted);
  font-size: 0.8rem;
}

.fact dd,
.effect dd,
.receipt-row dd {
  margin: 0;
  text-align: right;
  font-size: 0.82rem;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.request-card {
  margin-bottom: 16px;
  padding: 16px;
  border: 1px solid #cfdae4;
  border-left: 3px solid var(--info);
  border-radius: var(--radius);
  background: var(--info-bg);
}

.request-card p {
  margin: 7px 0 0;
  color: #263b4e;
  line-height: 1.55;
}

.resolution-card {
  position: relative;
  min-height: 360px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.resolution-card.proposed,
.resolution-card.approved {
  border-color: #cfdae4;
  background: var(--info-bg);
}

.resolution-card.pending,
.resolution-card.stale {
  border-color: #e3c990;
  background: var(--warning-bg);
}

.resolution-card.verified {
  border-color: #b8d2c7;
  background: #f5faf7;
}

.resolution-card.danger {
  border-color: #e0b6b2;
  background: var(--danger-bg);
}

.resolution-card.empty {
  display: grid;
  place-items: center;
  border-style: dashed;
  background: var(--surface);
  color: var(--muted);
  text-align: center;
}

.resolution-card.empty p {
  max-width: 420px;
  margin: 8px auto 0;
  line-height: 1.55;
}

.resolution-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.resolution-heading h4 {
  margin: 5px 0 0;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.state-pill {
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--verified-bg);
  color: var(--verified);
  font-size: 0.73rem;
  font-weight: 850;
  letter-spacing: 0.065em;
  text-transform: uppercase;
  white-space: nowrap;
}

.state-pill.stale,
.state-pill.partial,
.state-pill.resolution-state.danger {
  background: var(--danger-bg);
  color: var(--danger);
}

.state-pill.pending,
.state-pill.resolution-state.pending {
  background: var(--warning-bg);
  color: var(--warning);
}

.state-pill.resolution-state.proposed,
.state-pill.resolution-state.approved {
  background: var(--info-bg);
  color: var(--info);
}

.state-pill.resolution-state.verified {
  background: var(--verified-bg);
  color: var(--verified);
}

.card-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.approval-details {
  margin-top: 12px;
  border-top: 1px solid var(--line);
}

.approval-details summary {
  padding: 10px 0 2px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 720;
}

.approval-detail-list {
  margin: 6px 0 0;
}

.approval-detail-list .effect {
  padding-block: 8px;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

select,
.button {
  min-height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--ink);
}

select {
  width: 100%;
  padding: 0 11px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  cursor: pointer;
  font-weight: 750;
  transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
}

.button:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
}

.button:disabled,
.button:disabled:hover {
  border-color: var(--line);
  background: var(--surface-subtle);
  color: var(--muted-light);
  cursor: not-allowed;
  transform: none;
}

.button:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--info);
  outline-offset: 2px;
}

.button.primary {
  border-color: var(--verified);
  background: var(--verified);
  color: #ffffff;
}

.button.primary:hover {
  background: #104d39;
}

.button.warning {
  border-color: #d8b775;
  background: var(--warning-bg);
  color: var(--warning);
}

.button.danger {
  border-color: #dca9a5;
  background: var(--danger-bg);
  color: var(--danger);
}

.activity-list {
  position: relative;
  display: grid;
  gap: 0;
  max-height: 390px;
  margin: 0;
  overflow: auto;
  padding: 0;
  padding-right: 8px;
  list-style: none;
  scrollbar-color: var(--line-strong) transparent;
  scrollbar-width: thin;
}

.activity-list::before {
  position: absolute;
  top: 15px;
  bottom: 15px;
  left: 13px;
  width: 1px;
  background: var(--line);
  content: "";
}

.activity-item {
  position: relative;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 0 0 15px;
}

.activity-item:last-child {
  padding-bottom: 0;
}

.activity-icon {
  z-index: 1;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface-raised);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 850;
}

.activity-item.good .activity-icon {
  border-color: #b8d2c7;
  color: var(--verified);
}

.activity-item.warn .activity-icon {
  border-color: #e3c990;
  color: var(--warning);
}

.activity-item.bad .activity-icon {
  border-color: #e0b6b2;
  color: var(--danger);
}

.activity-copy strong {
  font-size: 0.8rem;
}

.activity-copy p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.74rem;
  line-height: 1.45;
}

.empty-activity {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.outcome {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.28fr);
  gap: 34px;
  align-items: center;
  padding: clamp(24px, 4vw, 38px);
  border-left: 5px solid var(--verified);
  background: var(--verified-bg);
}

.outcome.partial,
.outcome.diverged {
  border-left-color: var(--danger);
  background: var(--danger-bg);
}

.outcome.waiting {
  border-left-color: var(--info);
  background: var(--info-bg);
}

.outcome.pending {
  border-left-color: var(--warning);
  background: var(--warning-bg);
}

.outcome h3 {
  margin: 5px 0 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.outcome p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.contract-rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-raised);
}

.contract-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.contract-heading > div {
  display: grid;
  gap: 2px;
}

.contract-heading strong {
  font-size: 0.78rem;
}

.contract-indicator {
  width: 9px;
  height: 9px;
  border: 2px solid var(--surface-raised);
  border-radius: 50%;
  background: var(--muted-light);
  box-shadow: 0 0 0 1px var(--line-strong);
}

.contract-indicator.ready {
  background: var(--verified);
  box-shadow: 0 0 0 1px #8db9a8;
}

.tool-rail {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tool-rail li {
  display: inline-flex;
}

.tool-rail span {
  padding: 5px 7px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-subtle);
  color: #38423f;
  font-size: 0.75rem;
}

.contract-rail.introducing .tool-rail span {
  animation: contract-enter 280ms ease-out both;
}

.contract-rail.introducing .tool-rail li:nth-child(2) span {
  animation-delay: 40ms;
}

.contract-rail.introducing .tool-rail li:nth-child(3) span {
  animation-delay: 80ms;
}

.contract-rail.introducing .tool-rail li:nth-child(4) span {
  animation-delay: 120ms;
}

.contract-rail.introducing .tool-rail li:nth-child(5) span {
  animation-delay: 160ms;
}

.contract-note {
  color: var(--muted);
  font-size: 0.75rem;
}

@keyframes contract-enter {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.demo-guide,
.inspector {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.demo-guide summary,
.inspector summary {
  cursor: pointer;
  list-style: none;
}

.demo-guide summary::-webkit-details-marker,
.inspector summary::-webkit-details-marker {
  display: none;
}

.demo-guide > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 15px 16px;
}

.guide-summary-copy {
  display: grid;
  gap: 3px;
}

.guide-summary-copy > strong {
  font-size: 0.84rem;
}

.guide-summary-copy > span:last-child {
  color: var(--muted);
  font-size: 0.75rem;
}

.guide-toggle {
  flex: 0 0 auto;
  color: var(--info);
  font-size: 0.75rem;
  font-weight: 750;
}

.demo-guide[open] .guide-toggle {
  font-size: 0;
}

.demo-guide[open] .guide-toggle::before {
  content: "Hide steps";
  font-size: 0.75rem;
}

.guide-body {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 16px;
  padding: 0 16px 16px;
  border-top: 1px solid var(--line);
}

.guide-context {
  grid-column: 1 / -1;
  margin: 16px 0 0;
  padding: 10px 12px;
  border-left: 3px solid var(--info);
  background: var(--info-bg);
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

.guide-current,
.guide-runbook,
.guide-settings {
  padding-top: 16px;
}

.guide-current h3,
.guide-runbook h3 {
  margin: 0;
  font-size: 0.94rem;
}

.guide-current > p:not(.eyebrow) {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

.guide-action {
  margin-top: 14px;
}

.quickstart-list {
  display: grid;
  gap: 6px;
  margin: 11px 0 0;
  padding-left: 20px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.48;
}

.guide-settings {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px 14px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.guide-settings > label {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.guide-settings .control-row {
  min-width: 0;
}

.guide-settings > .control-helper {
  margin: 0;
}

.copy-prompt-control,
.control-row,
.dev-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
}

.copy-status {
  min-height: 1.2em;
  color: var(--verified);
  font-size: 0.75rem;
}

.quickstart-complete {
  margin: 0;
  color: var(--verified);
  font-size: 0.8rem;
  font-weight: 750;
}

.control-helper {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

.inspector summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 750;
}

.inspector-toggle {
  color: var(--info);
  font-size: 0.76rem;
}

.inspector[open] .inspector-toggle {
  font-size: 0;
}

.inspector[open] .inspector-toggle::before {
  content: "Hide";
  font-size: 0.76rem;
}

.inspector-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0 16px 16px;
}

.code-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
}

.code-card h4 {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.evaluation-note ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

pre {
  max-height: 360px;
  margin: 0;
  overflow: auto;
  color: #263b4e;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.7rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.dev-controls {
  margin-top: 14px;
}

.footer-note {
  margin: 16px 4px 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
  text-align: center;
}

@media (max-width: 980px) {
  .case-intro {
    grid-template-columns: 1fr;
  }

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

  .case-summary-item {
    padding: 13px 16px;
    border-right: 1px solid var(--line);
  }

  .case-summary-item:last-child {
    border-right: 0;
  }

  .workspace {
    grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  }

  .resolution-panel,
  .account-panel {
    grid-row: 1;
  }

  .activity-panel {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .activity-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .activity-list::before {
    display: none;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 24px, 1260px);
    padding-top: 14px;
  }

  .topbar {
    align-items: flex-start;
  }

  .case-intro {
    padding: 24px;
  }

  .case-summary {
    grid-template-columns: 1fr;
  }

  .case-summary-item {
    padding-inline: 0;
    border-right: 0;
  }

  .workspace,
  .outcome,
  .guide-body,
  .inspector-grid {
    grid-template-columns: 1fr;
  }

  .resolution-panel,
  .account-panel,
  .activity-panel,
  .outcome-panel {
    grid-column: 1;
    grid-row: auto;
  }

  .activity-list {
    grid-template-columns: 1fr;
  }

  .contract-rail {
    align-items: flex-start;
    flex-direction: column;
  }

  .tool-rail {
    justify-content: flex-start;
  }

  .guide-settings {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .guide-settings .control-row {
    align-items: stretch;
    flex-direction: column;
  }

  .guide-settings .button {
    width: 100%;
  }

  .code-card[style] {
    grid-column: auto !important;
  }
}

@media (max-width: 520px) {
  .topbar {
    display: grid;
  }

  .status-strip {
    justify-content: flex-start;
  }

  .case-intro,
  .panel {
    padding: 18px;
  }

  .outcome-panel {
    padding: 0;
  }

  .resolution-heading,
  .demo-guide > summary {
    align-items: flex-start;
    flex-direction: column;
  }

  .state-pill {
    white-space: normal;
  }

  .copy-prompt-control {
    align-items: stretch;
    flex-direction: column;
  }

  .copy-prompt-control .button,
  .guide-action > .button,
  .card-actions .button {
    width: 100%;
  }

  .outcome {
    padding: 22px 18px;
  }
}

@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;
  }
}