/* kayfabe manual: layered on mdBook's own CSS. System fonts, no downloads. */

:root {
  --kf-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono-font: ui-monospace, SFMono-Regular, Menlo, Consolas, "DejaVu Sans Mono", monospace;
  --content-max-width: 760px;
  --kf-focus: #0a58ad;
}
html {
  font-family: var(--kf-font);
}
body {
  line-height: 1.6;
}

/* Palette: light, and the dark one that mdBook's "Auto" picks from the OS setting (coal). */
.light,
html:not(.js) {
  --fg: #1b1f24;
  --links: #0a58ad;
  --sidebar-bg: #f5f7f9;
  --sidebar-fg: #1b1f24;
  --sidebar-active: #0a58ad;
  --sidebar-non-existant: #5c6670;
  --inline-code-color: #5a2a00;
  --quote-bg: #fff8e1;
  --quote-border: #8a5a00;
  --table-header-bg: #e8edf2;
  --table-alternate-bg: #f6f8fa;
  --table-border-color: #d0d7de;
  --icons: #4a5560;
  --kf-focus: #0a58ad;
}
.coal {
  --bg: #111418;
  --fg: #e6e8ea;
  --links: #7ab8ff;
  --sidebar-bg: #181d23;
  --sidebar-fg: #d6dadf;
  --sidebar-active: #7ab8ff;
  --sidebar-non-existant: #8c96a0;
  --inline-code-color: #ffcf99;
  --quote-bg: #2b2410;
  --quote-border: #d9a441;
  --table-header-bg: #232a32;
  --table-alternate-bg: #151a1f;
  --table-border-color: #2b323a;
  --icons: #a3acb5;
}

/* Evidence-label colours: light by default, dark under every dark mdBook theme. */
:root {
  --kf-measured-bg: #e3f3e9;
  --kf-measured-fg: #124d2a;
  --kf-inferred-bg: #ece8f8;
  --kf-inferred-fg: #3f2f85;
  --kf-gap-bg: #fff1c2;
  --kf-gap-fg: #5c3b00;
  --kf-muted: #4a5560;
  --kf-line: #d0d7de;
}
.coal,
.navy,
.ayu {
  --kf-focus: #7ab8ff;
  --kf-measured-bg: #12301f;
  --kf-measured-fg: #9ee0b5;
  --kf-inferred-bg: #25203f;
  --kf-inferred-fg: #c9bdf5;
  --kf-gap-bg: #3a2e0c;
  --kf-gap-fg: #ffd98a;
  --kf-muted: #a3acb5;
  --kf-line: #2b323a;
}

/* Focus is always visible. */
a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
summary:focus-visible,
label:focus-visible {
  outline: 3px solid var(--kf-focus);
  outline-offset: 2px;
}

/* Skip link and top bar. */
.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -4rem;
  z-index: 1000;
  padding: 0.5rem 1rem;
  background: var(--bg);
  color: var(--links);
  border: 2px solid var(--kf-focus);
}
.skip-link:focus {
  top: 0.5rem;
}
.kf-topbar {
  /* mdBook pulls .page up by the menu-bar height; keep the bar in view. */
  margin-top: var(--menu-bar-height);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.2rem;
  padding: 0.6rem 0;
  font-size: 1.5rem;
  border-bottom: 1px solid var(--kf-line);
}
.kf-topbar a {
  color: var(--links);
}
.kf-brand {
  font-weight: 700;
  font-size: 1.8rem;
  color: var(--fg) !important;
  text-decoration: none;
}
.kf-spacer {
  flex: 1;
}
.kf-topbar select {
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--icons);
  border-radius: 4px;
  padding: 0.2rem 0.4rem;
}

/* Reading column. */
.content main {
  line-height: 1.6;
}
.content p,
.content ul,
.content ol {
  line-height: 1.6;
}
.content h1 {
  margin-block-start: 0.6em;
}
.content a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}
.content a.header {
  text-decoration: none;
}
.content a.header::after {
  content: " #";
  opacity: 0;
  color: var(--kf-muted, var(--icons));
  font-weight: 400;
}
.content a.header:hover::after,
.content a.header:focus-visible::after {
  opacity: 1;
}
.content table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  margin: 1.2em 0;
}
.content table td,
.content table th {
  padding: 0.4rem 1rem;
  vertical-align: top;
  text-align: left;
}

/* Code blocks: bordered, scrollable, copy button always reachable by keyboard and touch. */
pre {
  border: 1px solid var(--table-border-color);
  border-radius: 6px;
}
pre > code {
  overflow-x: auto;
  line-height: 1.5;
}
pre > .buttons {
  visibility: visible;
  opacity: 0.85;
}
pre > .buttons button {
  min-width: 2.4rem;
  min-height: 2.4rem;
}

/* Callouts. */
blockquote {
  border-inline-start: 4px solid var(--quote-border);
  background: var(--quote-bg);
  padding: 0.4rem 1.2rem;
  margin: 1.2em 0;
}
.kf-label,
.kf-gap {
  padding: 0.05em 0.35em;
  border-radius: 4px;
  font-size: 0.92em;
  border: 1px solid currentColor;
}
.kf-measured {
  background: var(--kf-measured-bg);
  color: var(--kf-measured-fg);
}
.kf-inferred {
  background: var(--kf-inferred-bg);
  color: var(--kf-inferred-fg);
}
.kf-gap {
  background: var(--kf-gap-bg);
  color: var(--kf-gap-fg);
  border-style: dashed;
  font-weight: 600;
}
.kf-verified {
  border-top: 1px solid var(--table-border-color);
  padding-top: 0.8rem;
  color: var(--kf-muted, var(--fg));
  font-size: 0.95em;
}

/* Breadcrumbs, edit link, previous and next. */
.kf-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  font-size: 1.4rem;
  color: var(--kf-muted, var(--fg));
}
.kf-crumbs li + li::before {
  content: "/";
  margin: 0 0.5em;
}
.kf-edit {
  font-size: 1.4rem;
  color: var(--kf-muted, var(--fg));
  margin-top: 2.5rem;
}
.kf-pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.5rem 0 0;
}
.kf-pager a {
  flex: 1 1 14rem;
  display: block;
  padding: 0.7rem 1rem;
  border: 1px solid var(--table-border-color);
  border-radius: 6px;
  color: var(--links);
  text-decoration: none !important;
}
.kf-pager a:hover {
  border-color: var(--links);
}
.kf-pager a[rel="next"] {
  text-align: right;
}
.kf-pager span {
  display: block;
  font-size: 1.2rem;
  color: var(--kf-muted, var(--fg));
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}
@media print {
  .kf-topbar,
  .kf-pager,
  .kf-edit,
  .skip-link {
    display: none;
  }
}