/* ACE-T: a calm, high-contrast clinical field guide. No external fonts. */
:root {
  color-scheme: light;
  --ink: #132f3d;
  --muted: #516571;
  --paper: #ffffff;
  --wash: #f3f7f8;
  --line: #d6e1e5;
  --teal: #076c68;
  --teal-tint: #e9f5f2;
  --blue: #245da8;
  --blue-tint: #edf3fc;
  --amber: #845009;
  --amber-tint: #fff3dd;
  --focus: #b94117;
  --max: 78rem;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 2rem; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 1.0625rem/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--teal); text-underline-offset: .2em; text-decoration-thickness: .08em; }
a:hover { text-decoration-thickness: .15em; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 5px; }
button { font: inherit; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.14; letter-spacing: -.035em; text-wrap: balance; }
h1 { margin-bottom: 1.35rem; font-size: clamp(2.65rem, 4.5vw, 4.25rem); font-weight: 720; }
h2 { font-size: clamp(1.8rem, 2.6vw, 2.5rem); margin-bottom: 1.1rem; }
h3 { font-size: 1.3rem; margin-bottom: .6rem; }
p { margin-bottom: 1rem; }
ul, ol { padding-left: 1.3rem; }
li + li { margin-top: .55rem; }
strong { font-weight: 680; }
small, .small { font-size: .875rem; line-height: 1.55; }
.wrap { width: min(calc(100% - 5rem), var(--max)); margin-inline: auto; }
.skip { position: absolute; top: -8rem; left: 1rem; z-index: 10; padding: .75rem 1rem; background: var(--ink); color: white; }
.skip:focus { top: 1rem; }
.site-header { border-bottom: 1px solid var(--line); background: white; }
.header-inner { min-height: 6.2rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: flex; align-items: center; gap: 1rem; text-decoration: none; color: var(--ink); flex-shrink: 0; }
.wordmark { position: relative; font-size: 2rem; font-weight: 800; letter-spacing: -.06em; line-height: 1.2; padding-bottom: .4rem; }
.wordmark::after { content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 4px; background: linear-gradient(to right, var(--teal) 0 40%, var(--blue) 40% 65%, #d7a347 65%); }
.brand-note { max-width: 8.5rem; font-size: .8125rem; line-height: 1.3; font-weight: 560; color: var(--muted); }
.main-nav { display: flex; align-items: center; gap: 1.4rem; }
.main-nav a { min-height: 44px; display: inline-flex; align-items: center; color: var(--ink); font-size: .9375rem; font-weight: 590; text-decoration: none; border-bottom: 2px solid transparent; }
.main-nav a:hover, .main-nav a[aria-current="page"] { border-bottom-color: var(--teal); color: var(--teal); }
.kicker { font-size: .8125rem; font-weight: 700; letter-spacing: .105em; text-transform: uppercase; color: var(--teal); margin-bottom: 1.3rem; }
.lead { font-size: 1.25rem; line-height: 1.6; max-width: 42rem; color: var(--muted); }
.hero { display: grid; grid-template-columns: 1.12fr 1fr; gap: clamp(2.5rem, 6vw, 6rem); padding-block: 4.2rem 3.8rem; align-items: start; }
.hero h1 { max-width: 12ch; }
.hero .lead { max-width: 36rem; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.4rem; margin-top: 1.8rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 1rem; min-height: 48px; padding: .8rem 1.15rem; border: 1px solid var(--ink); border-radius: 5px; font-size: 1rem; line-height: 1.3; font-weight: 650; background: var(--ink); color: white; text-decoration: none; cursor: pointer; }
.button:hover { background: #234b5e; border-color: #234b5e; text-decoration: none; }
.button.secondary { background: white; color: var(--ink); border-color: #92a8b2; }
.button.secondary:hover { background: var(--wash); }
.text-link { font-size: 1rem; font-weight: 620; }
.arrow { font-size: 1.2em; line-height: 1; }
.domain-index { border-top: 1px solid var(--line); }
.index-label { font-size: .8125rem; letter-spacing: .095em; text-transform: uppercase; font-weight: 650; padding: .9rem 0; margin: 0; color: var(--muted); }
.domain-link { --domain: var(--teal); --tint: var(--teal-tint); display: grid; grid-template-columns: 3.25rem 1fr auto; align-items: center; gap: 1.2rem; padding: 1.45rem 1rem; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.domain-link:hover { background: var(--tint); }
.domain-link .letters { background: var(--tint); color: var(--domain); }
.letters { display: grid; place-items: center; width: 3.25rem; height: 3.25rem; font-size: 1.25rem; letter-spacing: -.025em; font-weight: 750; border-radius: 50%; }
.domain-link strong { font-size: 1.22rem; line-height: 1.25; display: block; letter-spacing: -.025em; }
.domain-link .description { display: block; margin-top: .4rem; font-size: .9375rem; color: var(--muted); line-height: 1.45; }
.domain-link .arrow { color: var(--domain); }
.experience { --domain: var(--blue); --tint: var(--blue-tint); }
.treatment { --domain: var(--amber); --tint: var(--amber-tint); }
.timing { display: grid; grid-template-columns: 11rem 1fr; gap: 2.4rem; background: var(--ink); color: white; padding: 2.1rem 2.5rem; border-radius: 7px; }
.time-label { border-right: 1px solid #607783; display: flex; flex-direction: column; justify-content: center; }
.time-label span { font-size: .8rem; text-transform: uppercase; letter-spacing: .09em; color: #d2e3ea; }
.time-label strong { font-size: 2rem; line-height: 1.2; margin-top: .2rem; }
.timing p { margin-bottom: .5rem; max-width: 59rem; }
.timing p:last-child { margin-bottom: 0; color: #d2e3ea; font-size: .9375rem; }
.section { padding-block: 4rem; }
.split-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 5rem; }
.split-section h2 { max-width: 17ch; }
.intro-copy { max-width: 44rem; }
.plain-links { border-top: 1px solid var(--line); margin-top: 1.75rem; }
.plain-links a { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); color: var(--ink); font-weight: 600; text-decoration: none; }
.plain-links a:hover { color: var(--teal); }
.soft-band { background: var(--wash); border-top: 1px solid var(--line); }
.handover { display: grid; grid-template-columns: .8fr 1.2fr; gap: 5rem; padding-block: 3.3rem; }
.handover h2 { font-size: 1.8rem; }
.handover p { margin-bottom: 0; }
.handover-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .85rem; }
.handover-list li { margin: 0; padding-left: 1.3rem; border-left: 3px solid var(--teal); font-size: 1.1rem; }
.page-heading { padding-block: 3.3rem 2.8rem; border-bottom: 1px solid var(--line); }
.page-heading h1 { font-size: clamp(2.5rem, 4.5vw, 3.6rem); max-width: 22ch; }
.page-heading .kicker { margin-bottom: .9rem; }
.page-heading .lead { max-width: 50rem; margin-bottom: 0; }
.page-heading .actions { margin-top: 1.4rem; }
.page-layout { display: grid; grid-template-columns: 13rem minmax(0, 1fr); column-gap: 4rem; padding-top: 2.5rem; padding-bottom: 4rem; }
.page-rail { align-self: start; position: sticky; top: 1.5rem; }
.rail-label { color: var(--muted); font-size: .8125rem; font-weight: 680; letter-spacing: .09em; text-transform: uppercase; margin-bottom: 1rem; }
.page-rail nav { border-left: 1px solid var(--line); display: grid; }
.page-rail a { padding: .7rem 0 .7rem 1rem; font-size: .9375rem; line-height: 1.4; color: var(--muted); text-decoration: none; }
.page-rail a:hover { color: var(--teal); background: var(--wash); }
.rail-note { margin-top: 2rem; color: var(--muted); font-size: .875rem; }
.article { min-width: 0; max-width: 55rem; }
.article > section { margin-top: 3rem; }
.article > section:first-child { margin-top: 0; }
.article h2 { font-size: 2rem; }
.article h3 { margin-top: 1.6rem; }
.article .timing { grid-template-columns: 8.5rem 1fr; gap: 1.5rem; padding: 1.6rem; }
.article .time-label strong { font-size: 1.65rem; }
.callout { border-left: 4px solid var(--teal); background: var(--teal-tint); padding: 1.25rem 1.5rem; margin: 1.5rem 0; }
.callout p:last-child { margin-bottom: 0; }
.callout.warning { background: var(--amber-tint); border-color: var(--amber); }
.action-section { --domain: var(--teal); --tint: var(--teal-tint); border-top: 4px solid var(--domain); }
.action-section.experience { --domain: var(--blue); --tint: var(--blue-tint); }
.action-section.treatment { --domain: var(--amber); --tint: var(--amber-tint); }
.action-heading { display: flex; align-items: center; gap: 1rem; background: var(--tint); padding: 1.3rem 1.4rem; }
.action-heading .letters { flex-shrink: 0; color: var(--domain); border: 1px solid var(--domain); background: white; }
.action-heading h2 { margin: 0 0 .25rem; font-size: 1.65rem; }
.action-heading p { margin: 0; color: var(--muted); font-size: .9375rem; }
.action-list { list-style: none; padding: 0; margin: 0; }
.action-list li { display: grid; grid-template-columns: 1.2rem 1fr; gap: .7rem; margin: 0; padding: .95rem .3rem; border-bottom: 1px solid var(--line); }
.action-list li::before { content: ""; width: .6rem; height: .6rem; margin-top: .52rem; border: 2px solid var(--domain); border-radius: 50%; }
.action-list strong { color: var(--ink); }
.action-list .detail { display: block; color: var(--muted); font-size: .975rem; margin-top: .2rem; }
.source-note { font-size: .875rem; color: var(--muted); margin-top: 1.8rem; }
.sequence { list-style: none; padding: 0; margin: 1.5rem 0; display: grid; gap: 0; counter-reset: sequence; }
.sequence li { counter-increment: sequence; display: grid; grid-template-columns: 2.5rem 1fr; gap: 1rem; margin: 0; border-top: 1px solid var(--line); padding: 1.2rem 0; }
.sequence li::before { content: counter(sequence, decimal-leading-zero); color: var(--teal); font-size: 1.2rem; font-weight: 680; }
.sequence h3 { margin: 0 0 .4rem; }
.sequence p { margin: 0; }
.resource-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1.8rem; padding: 1.6rem 0; border-bottom: 1px solid var(--line); }
.resource-row:first-of-type { border-top: 1px solid var(--line); }
.resource-row h3 { margin: 0 0 .4rem; }
.resource-row p { color: var(--muted); font-size: 1rem; margin: 0; }
.resource-row > a { white-space: nowrap; }
.preview { display: grid; grid-template-columns: minmax(0, 1fr) 12rem; gap: 2.5rem; align-items: center; background: var(--wash); border: 1px solid var(--line); padding: 1.8rem; border-radius: 6px; }
.preview img { border: 1px solid var(--line); }
.preview h3 { margin-top: 0; }
.preview .actions { margin-top: 1.2rem; }
.publication { border-left: 3px solid var(--line); padding-left: 1.3rem; font-size: 1rem; }
.site-footer { border-top: 1px solid var(--line); padding: 2.2rem 0; }
.footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 2rem; }
.footer-title { font-weight: 700; margin-bottom: .45rem; }
.footer-note { font-size: .875rem; color: var(--muted); max-width: 45rem; margin-bottom: .55rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; font-size: .875rem; }
.footer-links a { color: var(--muted); }
.footer-date { font-size: .8125rem; color: var(--muted); text-align: right; white-space: nowrap; }
[hidden] { display: none !important; }
@media (min-width: 90rem) { .hero { padding-top: 5rem; } }
@media (max-width: 65rem) {
  .wrap { width: min(calc(100% - 3rem), var(--max)); }
  .brand-note { display: none; }
  .main-nav { gap: 1rem; }
  .hero { gap: 2.2rem; }
  .domain-link { padding-inline: .5rem; gap: .8rem; }
  .page-layout { grid-template-columns: 11rem minmax(0, 1fr); column-gap: 2.5rem; }
  .split-section, .handover { gap: 3rem; }
}
@media (max-width: 48rem) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: .6rem; padding-block: 1rem .5rem; }
  .brand-note { display: block; max-width: none; }
  .main-nav { width: 100%; flex-wrap: wrap; gap: .1rem 1.15rem; }
  .main-nav a { font-size: .875rem; }
  .hero { grid-template-columns: 1fr; gap: 2rem; padding-block: 2.5rem; }
  .hero h1 { max-width: 15ch; }
  .hero .lead { font-size: 1.125rem; }
  .domain-link { padding: 1.1rem .4rem; }
  .timing { grid-template-columns: 1fr; gap: 1rem; padding: 1.6rem; }
  .time-label { flex-direction: row; align-items: baseline; gap: .6rem; border: 0; justify-content: flex-start; }
  .time-label strong { margin: 0; font-size: 1.65rem; }
  .split-section, .handover { grid-template-columns: 1fr; gap: 1.25rem; }
  .split-section h2 { max-width: 23ch; }
  .section { padding-block: 2.8rem; }
  .page-heading { padding-block: 2.2rem; }
  .page-heading .lead { font-size: 1.125rem; }
  .page-layout { display: block; padding-top: 1.5rem; padding-bottom: 2.5rem; }
  .page-rail { position: static; margin-bottom: 2rem; }
  .page-rail nav { border: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
  .page-rail a { padding: .6rem .85rem; border: 1px solid var(--line); border-radius: 4px; color: var(--ink); }
  .rail-label { margin-bottom: .6rem; }
  .rail-note { display: none; }
  .article .timing { grid-template-columns: 1fr; gap: 1rem; }
  .article > section { margin-top: 2.5rem; }
  .article h2 { font-size: 1.7rem; }
  .preview { grid-template-columns: 1fr; gap: 1.5rem; }
  .preview > a { max-width: 16rem; }
  .resource-row { grid-template-columns: 1fr; gap: .8rem; }
  .resource-row > a { justify-self: start; }
  .footer-inner { grid-template-columns: 1fr; gap: .75rem; }
  .footer-date { text-align: left; margin: 0; }
}
@media (max-width: 25rem) {
  .wrap { width: calc(100% - 2rem); }
  .brand-note { font-size: .75rem; max-width: 9rem; }
  .main-nav { gap: .1rem 1rem; }
  .main-nav a { font-size: .875rem; }
  .action-heading { padding: 1.1rem .8rem; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }
@page { size: A4; margin: 14mm; }
@media print {
  :root { --ink: #000; --muted: #333; --line: #aaa; }
  body { font-family: Arial, sans-serif; font-size: 10pt; line-height: 1.4; color: black; }
  .wrap { width: 100%; max-width: none; }
  .site-header, .site-footer, .page-rail, .actions, .skip, .no-print { display: none !important; }
  .page-heading { padding: 0 0 4mm; }
  .page-heading h1 { font-size: 25pt; max-width: none; margin-bottom: 3mm; }
  .kicker { font-size: 8pt; margin-bottom: 2mm !important; }
  .page-heading .lead { font-size: 11pt; line-height: 1.4; max-width: none; }
  .page-layout { display: block; padding: 4mm 0 0; }
  .article { max-width: none; }
  .article > section { margin-top: 5mm; }
  .article .timing { display: block; background: white; color: black; padding: 3mm; border: 1px solid #777; }
  .time-label { display: inline; border: 0; }
  .time-label span, .time-label strong { font-size: 11pt !important; display: inline; color: black; }
  .timing p { margin: 2mm 0 0; }
  .timing p:last-child { font-size: 9pt; color: #333; }
  .action-heading { padding: 3mm 0; background: white; gap: 3mm; }
  .action-heading .letters { width: 8mm; height: 8mm; font-size: 11pt; }
  .action-heading h2 { font-size: 16pt; }
  .action-heading p { font-size: 9pt; }
  .action-section { border-top-width: 2px; break-inside: avoid; }
  .action-list li { padding: 1.5mm 0; line-height: 1.3; grid-template-columns: 3mm 1fr; gap: 2mm; }
  .action-list li::before { width: 1.5mm; height: 1.5mm; margin-top: 1.1mm; border-width: 1px; }
  .action-list .detail { display: inline; font-size: 9.5pt; }
  .source-note { font-size: 8pt; margin-top: 4mm; }
  h2, h3 { break-after: avoid; }
  a { color: black; }
  .callout { padding: 3mm; margin: 3mm 0; border: 1px solid #777; background: white; }
  .article h2 { font-size: 16pt; }
  .preview { display: block; background: none; }
  .preview img { max-width: 60mm; }
}