:root {
  --paper: #fbfaf7;
  --surface: #f4f2ed;
  --surface-blue: #edf1f4;
  --ink: #181817;
  --muted-strong: #4a4945;
  --muted: #6f6c66;
  --faint: #969189;
  --line: #d9d5cd;
  --line-strong: #aaa49a;
  --blue: #35567a;
  --blue-dark: #203e61;
  --mark: #f2e4a8;
  --good: #416b50;
  --warn: #8b651f;
  --bad: #8a3f3f;
  --shadow: rgb(28 25 20 / 14%);
  --shadow-soft: rgb(28 25 20 / 8%);
  --serif: Charter, "Bitstream Charter", "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  --display: Baskerville, "Libre Baskerville", "Iowan Old Style", Georgia, serif;
  --sans: "Avenir Next", Avenir, Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --page: 72rem;
  --measure: 43rem;
  --gutter: clamp(1rem, 4vw, 2.75rem);
  --section-space: clamp(2rem, 5vw, 4rem);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --paper: #131412;
  --surface: #1b1c19;
  --surface-blue: #1c2730;
  --ink: #eeeae1;
  --muted-strong: #c7c1b7;
  --muted: #aaa49a;
  --faint: #817d76;
  --line: #32332f;
  --line-strong: #55564f;
  --blue: #98b9dc;
  --blue-dark: #c0d5ec;
  --mark: #594b20;
  --good: #88b797;
  --warn: #d4b46a;
  --bad: #d89393;
  --shadow: rgb(0 0 0 / 48%);
  --shadow-soft: rgb(0 0 0 / 30%);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; margin: 0; background: var(--paper); color: var(--ink); font: 1rem/1.58 var(--serif); font-kerning: normal; text-rendering: optimizeLegibility; }
button, input, select, textarea { color: inherit; font: inherit; }
button, select { cursor: pointer; }
a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--blue-dark); }
[hidden] { display: none !important; }
img { max-width: 100%; }
h1, h2, h3, h4 { font-family: var(--display); text-wrap: balance; }
h1 { font-size: clamp(1.65rem, 3vw, 2rem); line-height: 1.1; }
h2 { font-size: clamp(1.3rem, 2.2vw, 1.62rem); line-height: 1.16; }
h3 { font-size: 1.05rem; line-height: 1.25; }
code, kbd, pre, samp { font-family: var(--mono); }
code { font-size: .86em; }
kbd { padding: .08em .32em; border: 1px solid var(--line-strong); background: var(--surface); font-size: .78em; }
mark { padding-inline: .08em; background: var(--mark); color: inherit; }

.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; }
.skip-link { position: fixed; top: -4rem; left: 1rem; z-index: 1000; padding: .35rem .55rem; border: 1px solid var(--ink); background: var(--paper); font: .78rem/1.3 var(--sans); }
.skip-link:focus { top: .75rem; }

.site-header { display: flex; align-items: baseline; justify-content: space-between; gap: 1.25rem; width: min(var(--page), calc(100% - 2 * var(--gutter))); margin-inline: auto; padding: 1.1rem 0 .58rem; border-bottom: 1px solid var(--line); }
.site-title { color: var(--ink); font: 600 1.12rem/1.2 var(--display); font-variant: small-caps; letter-spacing: .025em; text-decoration: none; }
.site-header nav, .site-nav { display: flex; align-items: baseline; gap: .85rem; font: .72rem/1.3 var(--sans); }
.site-header nav a, .site-nav a { color: var(--muted); }
.site-header nav a:hover, .site-nav a:hover, .site-header nav a[aria-current], .site-nav a[aria-current] { color: var(--blue-dark); }
.page-shell { width: min(var(--page), calc(100% - 2 * var(--gutter))); margin-inline: auto; }
.prose { max-width: var(--measure); }
.prose p, .prose li { text-wrap: pretty; }
.prose p { margin: .7rem 0 1.1rem; }

.eyebrow, .section-kicker, .data-label, .control-label { margin: 0 0 .22rem; color: var(--muted); font: 600 .64rem/1.25 var(--sans); font-variant: small-caps; letter-spacing: .065em; text-transform: lowercase; }
.lede { max-width: var(--measure); color: var(--muted-strong); font-size: 1.05rem; line-height: 1.6; }
.site-divider { display: grid; grid-template-columns: minmax(2rem, 1fr) auto minmax(2rem, 1fr); gap: clamp(.85rem, 2vw, 1.35rem); align-items: center; width: min(54rem, calc(100% - 2rem)); margin: clamp(2.4rem, 5vw, 4rem) auto; color: var(--line-strong); }
.site-divider::before, .site-divider::after { height: 1px; background: var(--line); content: ""; }
.site-divider > span { display: grid; min-width: 1.1rem; place-items: center; }
.site-divider > span::before { color: var(--muted); content: "✦"; font: 1.05rem/1 var(--display); }
.site-divider[data-ornament="asterism"] > span::before { content: "⁂"; font-size: .95rem; letter-spacing: .08em; }
.site-divider[data-ornament="diamond"] > span::before { content: "◆"; font-size: .62rem; }
.site-divider[data-ornament="helix"] > span::before { content: "⋈"; font-size: 1.12rem; }
.site-divider[data-ornament="folio"] > span::before { content: "§"; font-size: 1rem; }
.site-divider[data-ornament="constellation"] > span::before { content: "✣"; font-size: 1rem; }
.site-divider--wide { width: 100%; }

.section-index { position: sticky; top: 0; z-index: 40; display: flex; gap: .45rem 1.1rem; overflow-x: auto; padding: .65rem 0; border-bottom: 1px solid var(--line); background: var(--paper); font: 600 .66rem/1.3 var(--sans); font-variant: small-caps; letter-spacing: .035em; scrollbar-width: none; }
.section-index::-webkit-scrollbar { display: none; }
.section-index a { flex: none; color: var(--muted); text-decoration-color: transparent; }
.section-index a:hover, .section-index a[aria-current] { color: var(--blue-dark); text-decoration-color: currentColor; }
.section-block { scroll-margin-top: 3rem; padding: var(--section-space) 0; }
.section-block + .section-block { border-top: 1px solid var(--line-strong); }
.section-block:target { border-top-color: transparent; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1.25rem; margin-bottom: 1.2rem; }
.section-heading h1, .section-heading h2, .section-heading h3 { margin: 0; font-weight: 500; }
.section-note, .result-status, .quiet { color: var(--muted); font-size: .78rem; }

.data-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); margin: 0; border-block: 1px solid var(--line-strong); }
.data-strip > div { padding: .72rem .85rem; border-left: 1px solid var(--line); }
.data-strip > div:first-child { border-left: 0; }
.data-strip dt { color: var(--muted); font: 600 .6rem/1.2 var(--sans); font-variant: small-caps; letter-spacing: .055em; }
.data-strip dd { margin: .15rem 0 0; font: 600 1.05rem/1.25 var(--mono); }

button, input, select, textarea { border: 1px solid var(--line-strong); border-radius: 0; background: var(--paper); }
button, select { min-height: 2rem; padding: .3rem .55rem; }
input, textarea { padding: .4rem .55rem; }
button { font-family: var(--sans); font-size: .72rem; }
button:hover:not(:disabled) { border-color: var(--ink); background: var(--surface); }
button[aria-pressed="true"] { border-color: var(--blue); background: var(--surface-blue); color: var(--blue-dark); }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, a:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.theme-toggle { flex: none; min-width: 1.95rem; min-height: 1.8rem; margin-left: .2rem; padding: .15rem .45rem; font: 1rem/1 var(--display); }
[data-theme-toggle].theme-toggle {
  position: relative;
  display: inline-grid;
  width: 2.15rem;
  height: 2.15rem;
  min-width: 2.15rem;
  min-height: 2.15rem;
  padding: 0;
  place-items: center;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 50%;
  background: transparent;
  color: var(--muted-strong);
  font-size: 0;
  line-height: 0;
  cursor: pointer;
  transition: border-color .18s ease, background-color .18s ease, color .18s ease, box-shadow .18s ease;
}
[data-theme-toggle].theme-toggle::before,
[data-theme-toggle].theme-toggle::after {
  position: absolute;
  content: "";
}
[data-theme-toggle].theme-toggle::before {
  z-index: 1;
  width: 1.12rem;
  height: 1.12rem;
  background: currentColor;
  -webkit-mask: url("https://jehlp.net/site-theme/v2/icons/theme-moon.svg") center / contain no-repeat;
  mask: url("https://jehlp.net/site-theme/v2/icons/theme-moon.svg") center / contain no-repeat;
  transition: transform .28s cubic-bezier(.2, .75, .25, 1);
}
[data-theme-toggle].theme-toggle::after {
  width: 1.68rem;
  height: 1.68rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color .18s ease, transform .28s cubic-bezier(.2, .75, .25, 1);
}
[data-theme-toggle][data-theme-target="light"].theme-toggle::before {
  -webkit-mask-image: url("https://jehlp.net/site-theme/v2/icons/theme-sun.svg");
  mask-image: url("https://jehlp.net/site-theme/v2/icons/theme-sun.svg");
}
[data-theme-toggle].theme-toggle[aria-pressed="true"] { border-color: transparent; background: transparent; color: var(--muted-strong); }
[data-theme-toggle].theme-toggle:hover:not(:disabled) {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 .15rem .75rem var(--shadow-soft);
}
[data-theme-toggle].theme-toggle:hover::before { transform: rotate(12deg) scale(1.04); }
[data-theme-toggle].theme-toggle:hover::after { border-color: var(--line-strong); transform: scale(1.05); }
[data-theme-toggle].theme-toggle:active::before { transform: scale(.9); }
.theme-toggle--floating { position: fixed; top: .75rem; right: 1rem; z-index: 100; box-shadow: 0 .15rem .8rem var(--shadow-soft); }

details { border-top: 1px solid var(--line); }
summary { padding: .55rem 0; color: var(--blue); cursor: pointer; font-size: .8rem; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: .48rem .58rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font: 600 .62rem/1.25 var(--sans); font-variant: small-caps; letter-spacing: .045em; }
.table-scroll { overflow: auto; border-bottom: 1px solid var(--line-strong); }
.table-scroll th { position: sticky; top: 0; z-index: 2; background: var(--paper); }
.site-footer { width: min(var(--page), calc(100% - 2 * var(--gutter))); margin-inline: auto; padding: 1.2rem 0 2rem; color: var(--muted); font: .67rem/1.5 var(--sans); }

@media (max-width: 42rem) {
  :root { --gutter: .85rem; --section-space: 2.1rem; }
  .site-header { align-items: flex-start; flex-direction: column; gap: .65rem; }
  .site-header nav { width: 100%; flex-wrap: wrap; justify-content: flex-start; gap: .5rem .7rem; }
  .site-header nav .theme-toggle { margin-left: auto; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: .5rem; }
  .data-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .data-strip > div:nth-child(odd) { border-left: 0; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  :root { --paper: #fff; --ink: #000; --muted: #444; --line: #bbb; }
  .theme-toggle, .section-index, .site-divider { display: none; }
  a { color: inherit; }
}