*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; color-scheme: light dark; }
body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a, button { color: inherit; font: inherit; -webkit-tap-highlight-color: transparent; }
a { text-underline-offset: 0.22em; }
button { border: 0; }
svg { display: block; }
h1, h2, h3, p { margin-block: 0; text-wrap: pretty; }
h1, h2, h3 {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-style: normal;
}
h1 {
  max-width: 11ch;
  font-size: var(--text-display);
  font-weight: 700;
  letter-spacing: -0.042em;
  line-height: 1.02;
}
h2 {
  font-size: clamp(2.15rem, 3.8vw, var(--text-4xl));
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.08;
}
h3 { font-size: var(--text-lg); font-weight: 700; line-height: 1.15; }

.skip-link {
  position: fixed;
  inset-block-start: var(--space-md);
  inset-inline-start: var(--space-md);
  z-index: var(--z-sticky);
  transform: translateY(-200%);
  padding: var(--space-sm) var(--space-md);
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-radius: var(--radius-small);
  text-decoration: none;
}
.skip-link:focus { transform: none; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 4px; }

.site-header {
  position: relative;
  z-index: var(--z-raised);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: var(--content-max);
  min-height: 4.75rem;
  margin-inline: auto;
  padding-inline: var(--page-gutter);
  border-block-end: var(--rule-hairline) solid var(--color-rule);
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 2.75rem;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}
.wordmark > span:last-child { display: none; }
.wordmark-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-radius: 50%;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.wordmark small {
  display: none;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.header-actions, .hero-links, .attachment-actions, .site-footer div {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.theme-toggle, .github-link, .action-link, .repo-link, .site-footer a { white-space: nowrap; }
.theme-toggle {
  min-height: 2.75rem;
  padding-inline: var(--space-sm);
  color: var(--color-muted);
  background: transparent;
  cursor: pointer;
  font-size: var(--text-xs);
}
.theme-toggle:disabled,
[aria-disabled="true"] {
  opacity: 0.48;
  cursor: not-allowed;
  pointer-events: none;
}
.github-link, .action-link, .repo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 2.75rem;
  padding-inline: var(--space-md);
  border: var(--rule-hairline) solid var(--color-rule-strong);
  border-radius: var(--radius-small);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--dur-short) var(--ease-out),
              background-color var(--dur-short) var(--ease-out),
              border-color var(--dur-short) var(--ease-out),
              transform var(--dur-micro) var(--ease-out);
}
.github-link svg, .action-link svg, .repo-link svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}
.action-link-primary {
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.hero {
  display: grid;
  gap: var(--space-2xl);
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--space-2xl) var(--page-gutter) var(--space-3xl);
}
.hero-intro { display: grid; justify-items: start; gap: var(--space-lg); }
.context-line, .attachment-type, .builder-handle {
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero-lede {
  max-width: 65ch;
  color: var(--color-ink-soft);
  font-size: clamp(1.05rem, 1.6vw, var(--text-md));
}
.hero-links { flex-wrap: wrap; }
.care-map { min-width: 0; }
.map-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-sm);
}
.map-node {
  position: relative;
  z-index: var(--z-raised);
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  column-gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--color-paper-raised);
  border-block-start: var(--rule-hairline) solid var(--color-rule-strong);
}
.map-node > span {
  grid-row: 1 / span 2;
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}
.map-node h2 {
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.map-node p {
  margin-block-start: var(--space-xs);
  color: var(--color-muted);
  font-size: var(--text-sm);
}
.map-core, .map-lines { display: none; }
.map-caption {
  max-width: 65ch;
  margin-block-start: var(--space-lg);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.project-index {
  background: var(--color-paper-sunken);
  border-block: var(--rule-hairline) solid var(--color-rule);
}
.project-index dl {
  display: grid;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-xl) var(--page-gutter);
}
.project-index dl > div {
  display: grid;
  gap: var(--space-xs);
  padding-block: var(--space-lg);
  border-block-end: var(--rule-hairline) solid var(--color-rule);
}
.project-index dl > div:last-child { border-block-end: 0; }
.project-index dt {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
}
.project-index dd { margin: 0; color: var(--color-muted); font-size: var(--text-sm); }

.section-shell {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--space-3xl) var(--page-gutter);
}
.section-heading {
  display: grid;
  gap: var(--space-lg);
  margin-block-end: var(--space-2xl);
}
.section-heading p, .safety-intro p, .validation-copy p,
.builder-profile > p:not(.builder-handle), .attachment > div > p:not(.attachment-type) {
  max-width: 65ch;
  color: var(--color-ink-soft);
  font-size: var(--text-md);
}

.journey-steps {
  display: grid;
  margin: 0;
  padding: 0;
  border-block-start: var(--rule-hairline) solid var(--color-rule-strong);
  list-style: none;
}
.journey-steps li {
  display: grid;
  gap: var(--space-sm);
  padding-block: var(--space-xl);
  border-block-end: var(--rule-hairline) solid var(--color-rule);
}
.journey-steps time {
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.journey-steps h3 { font-family: var(--font-body); font-size: var(--text-md); }
.journey-steps p { margin-block-start: var(--space-xs); color: var(--color-ink-soft); }
.journey-steps small { color: var(--color-muted); font-size: var(--text-xs); }

.ai-system {
  max-width: none;
  padding-inline: max(var(--page-gutter), calc((100% - var(--content-max)) / 2 + var(--page-gutter)));
  background: var(--color-paper-sunken);
  border-block: var(--rule-hairline) solid var(--color-rule);
}
.ai-ledger { border-block-start: var(--rule-hairline) solid var(--color-rule-strong); }
.ledger-row {
  display: grid;
  gap: var(--space-sm);
  padding-block: var(--space-lg);
  border-block-end: var(--rule-hairline) solid var(--color-rule);
}
.ledger-row strong { color: var(--color-accent); }
.ledger-row span { color: var(--color-ink-soft); }
.ledger-head { display: none; }
.safety { display: grid; gap: var(--space-2xl); }
.safety-intro { display: grid; align-content: start; gap: var(--space-lg); }
.failure-list { display: grid; margin: 0; padding: 0; list-style: none; }
.failure-list li {
  display: grid;
  gap: var(--space-xs);
  padding-block: var(--space-lg);
  border-block-end: var(--rule-hairline) solid var(--color-rule);
}
.failure-list li:first-child { border-block-start: var(--rule-hairline) solid var(--color-rule-strong); }
.failure-list span { font-weight: 700; }
.failure-list p { color: var(--color-muted); font-size: var(--text-sm); }

.validation {
  display: grid;
  gap: var(--space-2xl);
  max-width: none;
  padding-inline: max(var(--page-gutter), calc((100% - var(--content-max)) / 2 + var(--page-gutter)));
  color: var(--color-inverse-ink);
  background: var(--color-inverse-surface);
}
.validation-copy { display: grid; align-content: start; gap: var(--space-lg); }
.validation-copy p { color: var(--color-inverse-muted); }
.validation-copy .section-kicker {
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.scenario-counts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  border-block-start: var(--rule-hairline) solid var(--color-rule-strong);
}
.scenario-counts div {
  padding: var(--space-lg) var(--space-sm);
  border-block-end: var(--rule-hairline) solid var(--color-rule-strong);
}
.scenario-counts dt {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.scenario-counts dd {
  margin: var(--space-xs) 0 0;
  color: var(--color-inverse-muted);
  font-size: var(--text-xs);
}

.status-columns { display: grid; gap: var(--space-xl); }
.status-columns section {
  padding-block-start: var(--space-lg);
  border-block-start: var(--rule-hairline) solid var(--color-rule-strong);
}
.status-columns h3 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--text-md);
}
.status-columns h3 span {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-radius: 50%;
  font-size: var(--text-sm);
}
.status-columns ul, .repo-panel ul {
  display: grid;
  gap: var(--space-sm);
  margin: var(--space-lg) 0 0;
  padding: 0;
  color: var(--color-muted);
  list-style: none;
}
.status-columns li, .repo-panel li {
  position: relative;
  padding-inline-start: var(--space-md);
}
.status-columns li::before, .repo-panel li::before {
  position: absolute;
  inset-block-start: 0.7em;
  inset-inline-start: 0;
  width: 0.25rem;
  height: 0.25rem;
  background: var(--color-accent);
  border-radius: 50%;
  content: "";
}

.builder {
  display: grid;
  gap: var(--space-2xl);
  background: var(--color-paper-sunken);
  border-block: var(--rule-hairline) solid var(--color-rule);
}
.builder-profile { display: grid; align-content: start; gap: var(--space-lg); }
.repo-panel {
  padding: var(--space-xl);
  color: var(--color-inverse-ink);
  background: var(--color-inverse-surface);
}
.repo-panel > p {
  color: var(--color-inverse-muted);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.repo-panel h3 { margin-block-start: var(--space-lg); font-size: clamp(2rem, 6vw, var(--text-3xl)); }
.repo-panel ul { color: var(--color-inverse-muted); }
.repo-panel li::before { background: var(--color-accent); }
.repo-link {
  margin-block-start: var(--space-xl);
  color: var(--color-inverse-ink);
  border-color: var(--color-rule-strong);
}

.attachment { display: grid; gap: var(--space-xl); align-items: end; }
.attachment > div:first-child { display: grid; gap: var(--space-md); }
.attachment h2 { font-size: var(--text-2xl); }
.attachment-actions { flex-wrap: wrap; }

.site-footer {
  display: grid;
  gap: var(--space-lg);
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--space-xl) var(--page-gutter);
  color: var(--color-muted);
  border-block-start: var(--rule-hairline) solid var(--color-rule);
  font-size: var(--text-xs);
}
.site-footer p { max-width: 72ch; }
.site-footer div { flex-wrap: wrap; }
.site-footer a {
  min-height: 2.75rem;
  color: var(--color-ink-soft);
  font-weight: 600;
}

.reveal {
  opacity: 0;
  transform: translateY(var(--space-xs));
  animation: reveal var(--dur-long) var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 80ms);
}
@keyframes reveal { to { opacity: 1; transform: none; } }

@media (hover: hover) and (pointer: fine) {
  .github-link:hover, .action-link:hover, .repo-link:hover {
    color: var(--color-accent-ink);
    background: var(--color-accent-strong);
    border-color: var(--color-accent-strong);
    transform: translateY(-1px);
  }
  .action-link-primary:hover {
    color: var(--color-accent-ink);
    background: var(--color-accent-strong);
  }
  .theme-toggle:hover { color: var(--color-accent); }
}
.github-link:active, .action-link:active, .repo-link:active { transform: translateY(1px); }

@media (min-width: 40rem) {
  .wordmark small { display: inline; }
  .hero { padding-block-start: var(--space-3xl); }
  .project-index dl { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--space-xl); }
  .project-index dl > div:nth-last-child(-n + 2) { border-block-end: 0; }
  .journey-steps li { grid-template-columns: 6rem minmax(0, 1fr) 8rem; gap: var(--space-lg); }
  .journey-steps small { text-align: end; }
  .ledger-row { grid-template-columns: minmax(8rem, 0.55fr) minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--space-lg); }
  .ledger-head { display: grid; color: var(--color-muted); font-size: var(--text-xs); font-weight: 700; }
  .status-columns { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .attachment { grid-template-columns: minmax(0, 1fr) auto; }
  .site-footer { grid-template-columns: minmax(0, 1fr) auto; }
}

@media (min-width: 23rem) {
  .wordmark > span:last-child { display: inline; }
}

@media (min-width: 60rem) {
  .site-header { min-height: 5.25rem; }
  .hero {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    align-items: center;
    min-height: calc(100svh - 5.25rem);
    padding-block: var(--space-xl) var(--space-2xl);
  }
  .hero-intro { padding-block-end: var(--space-2xl); }
  .map-grid {
    min-height: 35rem;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-rows: repeat(10, minmax(0, 1fr));
    gap: 0;
  }
  .map-node {
    position: absolute;
    width: min(15rem, 30%);
    padding: var(--space-md);
    box-shadow: var(--shadow-whisper);
  }
  .node-patient { inset-block-start: 4%; inset-inline-start: 4%; }
  .node-rule { inset-block-start: 2%; inset-inline-start: 50%; transform: translateX(-50%); }
  .node-ai { inset-block-start: 6%; inset-inline-end: 1%; }
  .node-clinician { inset-block-end: 4%; inset-inline-end: 8%; }
  .node-next { inset-block-end: 3%; inset-inline-start: 11%; }
  .map-core {
    position: absolute;
    inset-block-start: 50%;
    inset-inline-start: 50%;
    z-index: var(--z-raised);
    display: grid;
    place-items: center;
    width: 8.75rem;
    height: 8.75rem;
    transform: translate(-50%, -50%);
    color: var(--color-accent-ink);
    background: var(--color-accent);
    border-radius: 50%;
  }
  .map-core strong { font-family: var(--font-display); font-size: var(--text-md); }
  .map-core span { font-size: var(--text-xs); }
  .map-lines {
    position: absolute;
    inset: 0;
    z-index: var(--z-base);
    display: block;
    width: 100%;
    height: 100%;
    fill: none;
    stroke: var(--color-rule-strong);
    stroke-dasharray: 4 8;
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
  }
  .map-caption { margin-inline-start: auto; text-align: end; }
  .project-index dl { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .project-index dl > div {
    padding: 0 var(--space-lg);
    border-block-end: 0;
    border-inline-end: var(--rule-hairline) solid var(--color-rule);
  }
  .project-index dl > div:first-child { padding-inline-start: 0; }
  .project-index dl > div:last-child { padding-inline-end: 0; border-inline-end: 0; }
  .section-heading { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.75fr); align-items: end; }
  .section-heading-wide { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); }
  .safety { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--space-4xl); }
  .safety-intro { position: sticky; inset-block-start: var(--space-2xl); }
  .validation { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--space-4xl); }
  .builder {
    grid-template-columns: minmax(0, 1.05fr) minmax(22rem, 0.75fr);
    max-width: none;
    padding-inline: max(var(--page-gutter), calc((100% - var(--content-max)) / 2 + var(--page-gutter)));
  }
}

@media (min-width: 90rem) { .hero { gap: var(--space-4xl); } }
@media (pointer: coarse) {
  .theme-toggle, .github-link, .action-link, .repo-link, .site-footer a { min-height: 3rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}