:root {
  --paper: #f7f4ec;
  --ink: #16322e;
  --muted: #52645d;
  --line: #c9d2c6;
  --accent: #9b3e28;
  --wash: #e7ebdf;
  --sans: system-ui, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 18px/1.65 Georgia, serif; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .24em; }
a:hover { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
main:focus { outline: none; }
[hidden] { display: none !important; }
[id] { scroll-margin-top: 24px; }
.skip { position: absolute; left: 20px; top: 10px; z-index: 5; transform: translateY(-150%); padding: 8px 14px; background: var(--ink); color: white; }
.skip:focus { transform: none; color: white; }

.site-header, main, .site-footer {
  width: min(100% - 64px, 1080px);
  margin-inline: auto;
}
.draft-ribbon {
  padding: 7px 15px;
  text-align: center;
  color: var(--muted);
  background: var(--wash);
  font: 600 11px/1.5 var(--sans);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  min-height: 80px;
  border-bottom: 1px solid var(--line);
}
.brand { font: 700 20px/1.3 var(--sans); text-decoration: none; letter-spacing: -.035em; }
.site-header nav { display: flex; gap: 26px; }
.site-header nav a { display: grid; place-items: center; min-height: 44px; font: 15px/1.4 var(--sans); text-decoration: none; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { text-decoration: underline; }
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 10px 24px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding: 24px 0 38px;
  color: var(--muted);
  font: 13px/1.6 var(--sans);
}
.site-footer a { display: inline-flex; align-items: center; min-height: 26px; }
h1, h2, h3 { font-weight: normal; }
h1 { margin: 15px 0 24px; font-size: clamp(44px, 6.6vw, 76px); line-height: 1.04; letter-spacing: -.045em; }
h2 { margin: 0 0 14px; font-size: clamp(27px, 3vw, 36px); line-height: 1.14; letter-spacing: -.025em; }
h3 { margin: 7px 0 10px; font-size: 25px; line-height: 1.2; letter-spacing: -.02em; }
.eyebrow, .source { margin: 0; font: 650 11px/1.5 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.source { color: var(--muted); }
.intro { max-width: 630px; margin: 0; color: var(--muted); font-size: 21px; line-height: 1.55; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 46px;
  padding: 11px 17px;
  margin-top: 24px;
  background: var(--ink);
  color: white;
  font: 15px/1.4 var(--sans);
  text-decoration: none;
}
.button:hover { color: white; background: #34544a; }
.text-link { display: inline-flex; gap: 8px; align-items: center; min-height: 32px; font: 14px/1.5 var(--sans); }

.home-lead {
  display: grid;
  grid-template-columns: minmax(0, 1.24fr) minmax(0, .9fr);
  align-items: center;
  gap: clamp(28px, 6vw, 84px);
  padding: 60px 0 52px;
}
.hero .intro { max-width: 490px; }
.lead-feature {
  background: var(--wash);
  border-top: 2px solid var(--ink);
  padding: 24px 28px;
}
.lead-feature h2 { margin: 18px 0 9px; font-size: clamp(24px, 2.6vw, 34px); }
.lead-feature > p:last-child { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.5; }
.diagram { background: var(--wash); padding: 28px; }
.feature-diagram { margin-top: 18px; padding: 0; }
.bar-label { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 4px; color: var(--muted); font: 12px/1.5 var(--sans); }
.bar { height: 22px; margin-bottom: 14px; background: var(--ink); position: relative; }
.feature-diagram .bar { height: 8px; margin-bottom: 9px; }
.bar.short { width: 80%; background: var(--accent); }
.bar:last-child { margin-bottom: 0; }
.bar b { position: absolute; right: 8px; top: 0; color: white; font: 600 14px/22px var(--sans); }

.selected { border-top: 1px solid var(--line); padding: 30px 0 8px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px 25px; margin-bottom: 12px; }
.section-heading h2 { margin: 0; }
.selected-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 32px; }
.selection { border-top: 1px solid var(--line); padding: 19px 0 22px; }
.selection > p:last-child, .entry > p:last-child { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.55; }
.home-author {
  display: grid;
  grid-template-columns: minmax(180px, .7fr) 1.3fr;
  align-items: start;
  gap: 10px 30px;
  padding: 26px 28px;
  margin: 22px 0 42px;
  background: var(--wash);
}
.home-author h2 { margin: 7px 0 0; }
.home-author div > p:not(.eyebrow) { margin: 0; color: var(--muted); }

.page-intro { padding: 48px 0 26px; }
.topic-nav { display: flex; flex-wrap: wrap; gap: 2px 24px; margin-top: 19px; }
.topic-nav a { display: inline-flex; min-height: 44px; align-items: center; font: 14px/1.5 var(--sans); }
.collection {
  display: grid;
  grid-template-columns: minmax(185px, .9fr) minmax(0, 2fr);
  gap: 12px 48px;
  border-top: 1px solid var(--line);
  padding: 28px 0 32px;
}
.collection-intro p { margin: 0; color: var(--muted); font-size: 16px; }
.collection-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 30px; }
.entry { padding: 10px 0 14px; border-bottom: 1px solid var(--line); }
.entry h3 { font-size: 23px; }
.entry:target { background: var(--wash); outline: 8px solid var(--wash); }
.page-content, .essay-page { max-width: 680px; padding: 48px 0 54px; }
.about-page p:not(.eyebrow, .intro) { max-width: 620px; }
.about-page .intro { color: var(--ink); }

.article-top { color: var(--muted); font: 13px/1.5 var(--sans); }
.essay p.article-top { margin: 0 0 26px; }
.essay h1 { font-size: clamp(38px, 5.4vw, 59px); }
.essay h2 { margin-top: 38px; font-size: 29px; }
.essay p { margin: 18px 0; }
.essay .intro { color: var(--ink); font-size: 23px; }
.essay .diagram, .essay figure { margin: 28px 0; }
.essay figcaption { margin-top: 10px; color: var(--muted); font: 13px/1.6 var(--sans); }
.essay blockquote { margin: 28px 0; padding: 22px; background: var(--wash); font-size: 21px; }
.essay .takeaway { margin: 26px 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--accent); }
.essay .note { padding-top: 19px; border-top: 1px solid var(--line); color: var(--muted); font: 14px/1.65 var(--sans); }
.visual-label { color: var(--muted); font: 650 11px/1.5 var(--sans); letter-spacing: .08em; }
.heat-visual, .decision-visual { padding: 24px; background: var(--wash); }
.heat-visual, .decision-branches { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.heat-visual > div + div { padding-left: 20px; border-left: 1px solid var(--line); }
.heat-visual p:not(.visual-label) { display: flex; flex-direction: column; gap: 5px; margin: 0 0 10px; }
.heat-visual .visual-label { margin: 0 0 13px; }
.heat-visual strong { font-size: 23px; }
.heat-visual span, .heat-visual small { font: 13px/1.5 var(--sans); }
.heat-visual span, .decision-branches span { color: var(--accent); }
.decision-visual { margin: 28px 0; text-align: center; }
.decision-visual .visual-label { margin: 0 0 12px; }
.decision-visual > strong { display: block; font-size: 22px; }
.decision-branches { margin-top: 19px; }
.decision-branches > div { padding-top: 10px; border-top: 1px solid var(--line); }
.decision-branches span { font: 650 13px/1.5 var(--sans); }
.decision-branches p { margin: 5px 0 0; font-size: 17px; }
.next-essay { margin-top: 35px; padding: 18px 0 0; border-top: 1px solid var(--line); }
.next-essay .eyebrow { margin: 0; }
.next-essay h2 { margin: 8px 0; }
.next-essay p:last-child { margin: 8px 0 0; color: var(--muted); font-size: 17px; }

.try-it { margin: 32px 0; padding: 24px; border-top: 3px solid var(--ink); background: var(--wash); }
.try-it h2 { margin: 8px 0; }
.try-it .eyebrow { margin: 0; }
.try-it label { display: block; margin: 15px 0 7px; font: 650 14px/1.4 var(--sans); }
.input-row { display: flex; gap: 10px; }
.input-wrap { position: relative; flex: 1; min-width: 0; }
.input-wrap span { position: absolute; right: 13px; top: 11px; color: var(--muted); font: 18px/1.5 var(--sans); }
.try-it input, .try-it button { min-height: 46px; border-radius: 0; }
.try-it input {
  width: 100%;
  padding: 8px 35px 8px 12px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid #7d9083;
  font: 18px/1.5 var(--sans);
}
.try-it button { padding: 9px 15px; border: 1px solid var(--ink); background: var(--ink); color: white; cursor: pointer; font: 14px/1.4 var(--sans); }
.try-it button:hover { background: #34544a; }
.presets { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; margin-top: 10px; }
.presets span { font: 13px/1.5 var(--sans); }
.presets button { min-height: 44px; padding: 7px 10px; background: transparent; color: var(--ink); border-color: #7d9083; }
.presets button:hover { background: var(--paper); }
.try-it .error { margin: 9px 0 0; color: var(--accent); font: 14px/1.5 var(--sans); }
.error:empty { margin: 0; }
.result-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 20px; padding-top: 16px; border-top: 1px solid #a7b4a4; }
.result-pair span { display: block; color: var(--muted); font: 13px/1.5 var(--sans); }
.result-pair strong { display: block; font: 36px/1.35 Georgia, serif; overflow-wrap: anywhere; }
.recovery-track, .recovery-track > div { height: 8px; }
.recovery-track { margin: 10px 0; background: var(--line); }
.recovery-track > div { background: var(--ink); }
.try-it .tool-note { margin-bottom: 0; color: var(--muted); font: 13px/1.5 var(--sans); }

@media (max-width: 850px) {
  .selected-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-lead { gap: 26px; padding-block: 38px; }
  .lead-feature { padding: 20px; }
  .collection { gap: 12px 28px; }
}
@media (max-width: 650px) {
  .site-header, main, .site-footer { width: calc(100% - 40px); }
  .site-header { min-height: 64px; }
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: 14px; }
  .brand { font-size: 18px; }
  .home-lead, .home-author, .collection { grid-template-columns: minmax(0, 1fr); }
  .hero h1 { font-size: clamp(41px, 10vw, 58px); }
  .intro { font-size: 19px; }
  .selected-grid { gap: 0 20px; }
  .selection h3 { font-size: 23px; }
  .section-heading { display: block; }
  .section-heading .text-link { margin-top: 4px; }
  .home-author { padding: 20px; margin: 15px 0 30px; }
  .page-content, .essay-page, .page-intro { padding-block: 33px; }
  .collection-intro { max-width: 420px; }
  .collection-list { gap: 12px 20px; }
  .essay .intro { font-size: 20px; }
  .try-it { padding: 17px; }
  .heat-visual, .decision-visual { padding: 15px; gap: 12px; }
  .heat-visual > div + div { padding-left: 12px; }
}
@media (max-width: 430px) {
  .selected-grid, .collection-list { grid-template-columns: minmax(0, 1fr); }
  .site-footer { flex-direction: column; align-items: flex-start; }
  .try-it button { padding-inline: 10px; }
  .result-pair strong { font-size: 29px; }
}
@media print {
  .draft-ribbon, .site-header, .site-footer, .skip, .next-essay, .try-it form, .presets { display: none !important; }
  body { background: white; color: black; }
  main { width: 100%; max-width: none !important; padding: 0 !important; }
  a { color: black; }
  .try-it, .decision-visual, .heat-visual { break-inside: avoid; }
}