/* Chart-edition static site styles. Adapted from the Dube Verdict site
   (russell-coil-dube-verdict, CC BY 4.0). No framework, no web fonts. */

/* Light is the default. Dark applies only when a reader asks for it, through the
   masthead toggle, which stores the choice in localStorage. */
:root {
  --bg: #fbfaf7;
  --bg-sunk: #f2efe8;
  --ink: #1b1a17;
  --ink-soft: #4a4740;
  --rule: #d8d2c4;
  --accent: #7a2e1d;
  --accent-soft: #f0e5df;
  --measure: 36rem;
  color-scheme: light;
}

html[data-theme="dark"] {
  --bg: #16171a;
  --bg-sunk: #1e2024;
  --ink: #e7e4dd;
  --ink-soft: #a9a49a;
  --rule: #363a40;
  --accent: #e0866c;
  --accent-soft: #2a2320;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 18px/1.62 "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { background: var(--accent-soft); }

code, pre {
  font-family: "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
code { font-size: 0.86em; background: var(--bg-sunk); padding: 0.08em 0.28em; border-radius: 2px; }
a code { background: transparent; }
pre {
  background: var(--bg-sunk);
  border: 1px solid var(--rule);
  padding: 0.8rem 1rem;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.5;
}
pre code { background: transparent; padding: 0; font-size: 1em; }

u.src-underline { text-decoration: underline; text-underline-offset: 2px; }

.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;
}

/* ---------- chrome ---------- */

.masthead {
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 20;
}
.masthead-inner {
  max-width: 62rem;
  margin: 0 auto;
  padding: 0.55rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  align-items: baseline;
}
.masthead .wordmark {
  font-size: 0.82rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
  margin-right: auto;
}
.masthead nav { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.masthead nav a {
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
}
.masthead nav a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--accent); }

/* The toggle needs a script to work, so it appears only when scripting runs.
   The moon offers dark, the sun offers light, and CSS picks which one shows. */
.theme-toggle { display: none; }
html.js .theme-toggle { display: inline-flex; }
.theme-toggle {
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.3rem;
  cursor: pointer;
  line-height: 0;
}
.theme-toggle .icon {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.theme-toggle .icon-moon { fill: currentColor; stroke: none; }
.theme-toggle .icon-sun { display: none; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

main { max-width: 62rem; margin: 0 auto; padding: 0 1.25rem 5rem; }

.prose { max-width: var(--measure); margin: 0 auto; }
.prose > * + * { margin-top: 1.05em; }
.prose h2 {
  margin: 2.6em 0 0.2em;
  font-size: 1.42rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.prose h3 { margin: 2em 0 0.2em; font-size: 1.12rem; }
.prose h4 { margin: 1.8em 0 0.2em; font-size: 1rem; }
.prose hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.6em auto;
  width: 8rem;
}
.prose blockquote {
  margin: 1.4em 0;
  padding: 0.1em 0 0.1em 1.1rem;
  border-left: 3px solid var(--rule);
  color: var(--ink);
}
.prose blockquote p { margin: 0.6em 0; }
.prose ol, .prose ul { padding-left: 1.4rem; }
.prose li + li { margin-top: 0.35em; }

.prose-wide { max-width: 62rem; margin: 0 auto; }
.prose-wide > * + * { margin-top: 1.05em; }
.prose-wide h2 { margin: 2.6em 0 0.2em; font-size: 1.42rem; line-height: 1.25; }
.prose-wide h3 { margin: 2em 0 0.2em; font-size: 1.12rem; }
.prose-wide h4 { margin: 1.8em 0 0.2em; font-size: 1rem; }
.prose-wide ol, .prose-wide ul { padding-left: 1.4rem; }
.prose-wide li + li { margin-top: 0.35em; }
.prose-wide blockquote {
  margin: 1.4em 0;
  padding: 0.1em 0 0.1em 1.1rem;
  border-left: 3px solid var(--rule);
}

.toc h2 {
  margin: 0 0 0.4rem;
  font-size: 0.82rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.toc ul { margin: 0; padding-left: 1.2rem; }
.toc li + li { margin-top: 0.2em; }

.lede { font-size: 1.06rem; color: var(--ink-soft); font-style: italic; }

/* ---------- title block ---------- */

.title-block {
  max-width: var(--measure);
  margin: 3.2rem auto 2.4rem;
}
.kicker {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 0.9rem;
}
.title-block h1 {
  font-size: 2.55rem;
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}
.title-block .subtitle {
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--ink-soft);
  margin: 0;
}
.title-block .toolbar { margin-top: 1.4rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.toolbar a {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--rule);
  padding: 0.4rem 0.7rem;
  border-radius: 2px;
  color: var(--ink-soft);
}
.toolbar a:hover { border-color: var(--accent); color: var(--accent); background: var(--bg); }

/* ---------- tables ---------- */

.table-wrap { overflow-x: auto; margin: 1.6em 0; }
table { border-collapse: collapse; font-size: 0.86rem; width: 100%; }
caption {
  text-align: left;
  font-weight: 600;
  font-size: 1.02rem;
  padding: 0.4em 0;
}
caption .octave-sub { display: block; font-weight: 400; font-size: 0.86rem; color: var(--ink-soft); }
th, td { border-bottom: 1px solid var(--rule); padding: 0.42em 0.6em; text-align: left; vertical-align: top; }
th { font-weight: 600; letter-spacing: 0.02em; }
tbody tr:hover { background: var(--bg-sunk); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.sigil { font-variant-numeric: tabular-nums; white-space: nowrap; }
.name-italic { font-style: italic; }
.name-caps { text-transform: none; letter-spacing: 0.04em; }
.name-smallcaps { font-variant: small-caps; }
.table-note { font-size: 0.82rem; color: var(--ink-soft); margin: 0.4em 0 2.2em; }
.table-note p { margin: 0.3em 0; }

/* ---------- figures ---------- */

figure { margin: 2.2em 0; }
figure img { display: block; max-width: 100%; height: auto; }
figcaption {
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--ink-soft);
  margin-top: 0.6em;
}
.figure-wide { max-width: 62rem; margin-left: auto; margin-right: auto; }
.plate-frame { background: #fff; border: 1px solid var(--rule); padding: 0.4rem; }

/* ---------- chart viewer ---------- */

.viewer { max-width: 62rem; margin: 2rem auto; }

/* The facsimile/redraw toggle is a radio pair. CSS alone switches the panes,
   so the toggle works without scripting. Arrow keys move between the radios. */
.viewer > input[type="radio"] {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}
.view-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.8rem;
}
.view-toggle .group-label {
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.view-toggle label {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--rule);
  padding: 0.4rem 0.7rem;
  border-radius: 2px;
  color: var(--ink-soft);
  cursor: pointer;
}
#view-facsimile:checked ~ .view-toggle label[for="view-facsimile"],
#view-redraw:checked ~ .view-toggle label[for="view-redraw"] {
  color: var(--ink);
  border-color: var(--accent);
  box-shadow: inset 0 -2px 0 var(--accent);
}
#view-facsimile:focus-visible ~ .view-toggle label[for="view-facsimile"],
#view-redraw:focus-visible ~ .view-toggle label[for="view-redraw"] {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Both panes share one viewport. */
.pane {
  background: #fff;
  border: 1px solid var(--rule);
  height: min(78vh, 46rem);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pane img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
}
html.js .pane img { position: absolute; top: 0; left: 0; max-width: none; max-height: none; transform-origin: 0 0; }
.pane:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
html.js .pane { cursor: grab; touch-action: none; }
html.js .pane.dragging { cursor: grabbing; }

#view-facsimile:checked ~ .pane-redraw { display: none; }
#view-redraw:checked ~ .pane-facsimile { display: none; }

.viewer-help {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin: 0.5rem 0 0;
  display: none;
}
html.js .viewer-help { display: block; }
.pane-caption { font-size: 0.82rem; line-height: 1.45; color: var(--ink-soft); margin-top: 0.6rem; }

/* ---------- scoreboard ---------- */

.verdict {
  display: inline-block;
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.1em 0.45em;
  white-space: nowrap;
}
.entry {
  border-top: 1px solid var(--rule);
  padding-top: 1.6rem;
  margin-top: 3rem;
  scroll-margin-top: 4rem;
}
.entry h2 { margin: 0 0 0.35rem; font-size: 1.3rem; line-height: 1.25; }
.entry .verdict-sentence { font-size: 1.02rem; }
.entry-meta {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
  font-size: 0.84rem;
  color: var(--ink-soft);
}
.entry-meta li + li { margin-top: 0.15rem; }
.entry-meta b { color: var(--ink); font-weight: 600; }
.evidence-quote {
  margin: 1em 0;
  padding-left: 1rem;
  border-left: 2px solid var(--rule);
  font-size: 0.92rem;
}
.evidence-quote p { margin: 0.4em 0; }
.evidence-cite { font-size: 0.8rem; color: var(--ink-soft); }

/* ---------- callouts ---------- */

.callout {
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.2rem;
  margin: 2rem 0;
  background: var(--bg-sunk);
  font-size: 0.92rem;
}
.callout h2, .callout h3 { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }

/* ---------- footer ---------- */

footer.site {
  border-top: 1px solid var(--rule);
  margin-top: 4rem;
  padding: 1.6rem 1.25rem 3rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
footer.site .footer-inner { max-width: 62rem; margin: 0 auto; display: grid; gap: 0.4rem; }

@media (max-width: 46rem) {
  body { font-size: 17px; }
  .title-block h1 { font-size: 2rem; }
  .pane { height: min(70vh, 34rem); }
  /* A finger needs more than a 28 px square. */
  .theme-toggle { padding: 0.55rem; }
  .theme-toggle .icon { width: 1.1rem; height: 1.1rem; }
}

@media print {
  /* Print on paper, whichever theme the reader is using on screen. */
  :root, html[data-theme="dark"] {
    --bg: #fff;
    --bg-sunk: #f4f4f4;
    --ink: #000;
    --ink-soft: #333;
    --rule: #bbb;
    --accent: #000;
    --accent-soft: transparent;
    color-scheme: light;
  }
  .masthead, .toolbar, .view-toggle, .viewer-help { display: none; }
  body { background: #fff; color: #000; font-size: 11pt; }
  /* On paper the toggle is meaningless: print both panes, contained. */
  .pane { height: auto; overflow: visible; border: 1px solid #bbb; page-break-inside: avoid; }
  html.js .pane img { position: static; max-width: 100%; max-height: none; transform: none !important; }
  #view-facsimile:checked ~ .pane-redraw, #view-redraw:checked ~ .pane-facsimile { display: flex; }
  tbody tr:hover { background: transparent; }
}