:root {
  color-scheme: light;
  --reader-ink: #18221e;
  --reader-muted: #66706b;
  --reader-paper: #f3efe7;
  --reader-surface: #fffdf9;
  --reader-line: #d9d1c4;
  --reader-green: #174f3c;
  --reader-gold: #b67b38;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--reader-paper); }
body.markdown-reader-page {
  margin: 0;
  color: var(--reader-ink);
  background: var(--reader-paper);
  font-family: Arial, Helvetica, sans-serif;
}

.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1001;
  height: 3px;
  pointer-events: none;
}
.reading-progress span { display: block; width: 0; height: 100%; background: var(--reader-gold); }

.reader-toolbar,
.reader-layout,
.reader-footer {
  width: min(1320px, calc(100% - 42px));
  margin-inline: auto;
}

.reader-toolbar {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--reader-line);
}
.reader-brand {
  color: var(--reader-ink);
  font: 700 1rem/1 Georgia, "Times New Roman", serif;
  text-decoration: none;
}
.reader-toolbar nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.reader-toolbar nav a,
.reader-footer a {
  color: var(--reader-muted);
  font-size: .76rem;
  font-weight: 800;
  text-decoration: none;
}
.reader-toolbar nav a:hover,
.reader-footer a:hover { color: var(--reader-green); }

.reader-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 820px);
  justify-content: center;
  gap: clamp(45px, 7vw, 100px);
  align-items: start;
  padding: clamp(48px, 7vw, 88px) 0 100px;
}

.reader-sidebar {
  position: sticky;
  top: 86px;
  max-height: calc(100vh - 112px);
  overflow: auto;
  padding: 2px 22px 24px 0;
  border-right: 1px solid var(--reader-line);
  scrollbar-width: thin;
}
.reader-kicker {
  margin: 0 0 16px;
  color: var(--reader-green);
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.reader-sidebar nav { display: grid; gap: 2px; }
.reader-sidebar nav a,
.reader-sidebar nav span {
  display: block;
  padding: 6px 0;
  color: var(--reader-muted);
  font-size: .76rem;
  line-height: 1.35;
  text-decoration: none;
}
.reader-sidebar nav a:hover { color: var(--reader-green); }
.reader-sidebar nav a[data-level="3"] { padding-left: 14px; font-size: .72rem; }

.markdown-document {
  min-width: 0;
  padding: clamp(28px, 5vw, 58px);
  background: var(--reader-surface);
  border: 1px solid var(--reader-line);
  box-shadow: 0 22px 65px rgba(33, 40, 36, .08);
}

.markdown-document > :first-child { margin-top: 0; }
.markdown-document h1,
.markdown-document h2,
.markdown-document h3,
.markdown-document h4,
.markdown-document h5,
.markdown-document h6 {
  color: var(--reader-ink);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  line-height: 1.12;
  scroll-margin-top: 92px;
}
.markdown-document h1 {
  margin: 0 0 32px;
  font-size: clamp(2.6rem, 6vw, 5rem);
  letter-spacing: -.055em;
}
.markdown-document h2 {
  margin: 3.2em 0 .85em;
  padding-top: .45em;
  border-top: 1px solid var(--reader-line);
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  letter-spacing: -.035em;
}
.markdown-document h3 { margin: 2.4em 0 .7em; font-size: 1.55rem; }
.markdown-document h4 { margin: 2em 0 .65em; font-size: 1.22rem; }
.markdown-document p,
.markdown-document li {
  font: 1.06rem/1.78 Georgia, "Times New Roman", serif;
}
.markdown-document p { margin: 0 0 1.25em; }
.markdown-document ul,
.markdown-document ol { margin: 0 0 1.5em; padding-left: 1.6em; }
.markdown-document li + li { margin-top: .45em; }
.markdown-document a { color: var(--reader-green); text-underline-offset: .17em; }
.markdown-document strong { font-weight: 700; }
.markdown-document hr { margin: 3.2em 0; border: 0; border-top: 1px solid var(--reader-line); }
.markdown-document blockquote {
  margin: 2em 0;
  padding: .25em 0 .25em clamp(20px, 4vw, 34px);
  color: #34463e;
  border-left: 3px solid var(--reader-gold);
}
.markdown-document blockquote p {
  font-size: clamp(1.1rem, 2vw, 1.28rem);
  font-style: italic;
  line-height: 1.65;
}
.markdown-document blockquote p:last-child { margin-bottom: 0; }
.markdown-document code {
  padding: .12em .32em;
  background: #eee9df;
  border-radius: 3px;
  font: .88em/1.5 Consolas, "Courier New", monospace;
}
.markdown-document pre {
  margin: 1.8em 0;
  padding: 20px;
  overflow: auto;
  color: #e9f0ec;
  background: #17221d;
  border-radius: 5px;
}
.markdown-document pre code { padding: 0; color: inherit; background: transparent; }
.markdown-document .table-wrap { margin: 2em 0; overflow-x: auto; }
.markdown-document table { width: 100%; border-collapse: collapse; font-size: .84rem; }
.markdown-document th,
.markdown-document td { padding: 10px 12px; border: 1px solid var(--reader-line); text-align: left; vertical-align: top; }
.markdown-document th { color: var(--reader-green); background: #f2eee5; }
.markdown-document img { display: block; max-width: 100%; height: auto; margin: 2em auto; }
.markdown-document sup a { font: 700 .72rem/1 Arial, Helvetica, sans-serif; text-decoration: none; }
.markdown-document .footnotes { margin-top: 4em; padding-top: 1.5em; border-top: 1px solid var(--reader-line); }
.markdown-document .footnotes h2 { margin: 0 0 1em; padding: 0; border: 0; font-size: 1.6rem; }
.markdown-document .footnotes li { font-size: .9rem; }

.reader-loading { min-height: 55vh; display: grid; place-content: center; justify-items: center; color: var(--reader-muted); }
.reader-loading span { width: 28px; height: 28px; border: 2px solid var(--reader-line); border-top-color: var(--reader-green); border-radius: 50%; animation: reader-spin .8s linear infinite; }
.reader-loading p { margin-top: 14px; font: 700 .76rem/1 Arial, Helvetica, sans-serif; }
.reader-error { padding: 30px; color: #7a3027; background: #fff4f1; border: 1px solid #e4c5bd; }

.reader-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 50px;
  color: var(--reader-muted);
  border-top: 1px solid var(--reader-line);
  font-size: .78rem;
}
.reader-footer p { margin: 0; }

@keyframes reader-spin { to { transform: rotate(360deg); } }

@media (max-width: 900px) {
  .reader-layout { grid-template-columns: 1fr; gap: 24px; }
  .reader-sidebar { position: static; max-height: 260px; padding: 20px; border: 1px solid var(--reader-line); background: rgba(255,255,255,.5); }
  .reader-sidebar nav { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 22px; }
}

@media (max-width: 600px) {
  .reader-toolbar,
  .reader-layout,
  .reader-footer { width: min(100% - 24px, 1320px); }
  .reader-toolbar { align-items: flex-start; flex-direction: column; gap: 12px; padding: 18px 0; }
  .reader-layout { padding-top: 24px; }
  .reader-sidebar nav { grid-template-columns: 1fr; }
  .markdown-document { padding: 28px 20px; }
  .markdown-document h1 { font-size: 2.45rem; }
  .reader-footer { flex-direction: column; }
}

@media print {
  .site-global-nav,
  .reader-toolbar,
  .reader-sidebar,
  .reader-footer,
  .reading-progress { display: none !important; }
  .reader-layout { display: block; width: auto; padding: 0; }
  .markdown-document { padding: 0; border: 0; box-shadow: none; }
}