/* =========================================================================
   OhmPedia — plate stylesheet
   A printed-reference hand: white paper, ink hairlines, one blue for links
   and a single vermilion reserved for the misconception warning.
   No radii, no shadows, no gradients, no decorative ornament.
   ========================================================================= */

/* --- self-hosted faces (variable, one file per family/style/subset) ------ */

@font-face {
  font-family: "Literata";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/literata-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191,
    U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Literata";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/literata-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02AF, U+0300-0301, U+0303-0304, U+0308-0309, U+0323,
    U+0329, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F,
    U+A720-A7FF;
}
@font-face {
  font-family: "Literata";
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/literata-italic-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191,
    U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Literata";
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/literata-italic-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02AF, U+0300-0301, U+0303-0304, U+0308-0309, U+0323,
    U+0329, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F,
    U+A720-A7FF;
}
@font-face {
  font-family: "Source Code Pro";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/source-code-pro-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191,
    U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Source Code Pro";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/source-code-pro-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02AF, U+0300-0301, U+0303-0304, U+0308-0309, U+0323,
    U+0329, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F,
    U+A720-A7FF;
}

/* --- variables ----------------------------------------------------------- */

:root {
  --lemma-ink: #111111;
  --lemma-ink-soft: #4a4a4a;
  --lemma-ink-faint: #7d7d7d;
  --lemma-paper: #ffffff;
  --lemma-link: #0b5fff;
  --lemma-warn: #c8372d;
  --folio-rule: 0.75px;
  --folio-rule-bold: 1.5px;
  --folio-measure: 68ch;
  --folio-side: 178px;
  --folio-gap: 34px;
  --lemma-body: "Literata", "Songti SC", "Noto Serif CJK SC", Georgia, serif;
  --lemma-sym: "Source Code Pro", "Cascadia Mono", Consolas, monospace;
}

/* --- base ---------------------------------------------------------------- */

*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--lemma-paper);
  color: var(--lemma-ink);
  font-family: var(--lemma-body);
  font-size: 17px;
  line-height: 1.62;
  font-variant-numeric: oldstyle-nums proportional-nums;
}

a {
  color: var(--lemma-link);
  text-decoration: none;
  text-underline-offset: 3px;
  text-decoration-thickness: var(--folio-rule);
}
a:hover,
a:focus-visible { text-decoration: underline; text-decoration-thickness: 2px; }

:focus-visible { outline: 2px solid var(--lemma-ink); outline-offset: 2px; }

code, kbd, samp, .lemma-sym { font-family: var(--lemma-sym); font-size: 0.92em; }

hr { border: 0; border-top: var(--folio-rule) solid var(--lemma-ink); margin: 28px 0; }

.lemma-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--lemma-ink);
  color: var(--lemma-paper);
  padding: 8px 14px;
  font-family: var(--lemma-sym);
  font-size: 13px;
}
.lemma-skip:focus { left: 0; }

/* --- masthead ------------------------------------------------------------ */

.folio-mast {
  border-top: var(--folio-rule-bold) solid var(--lemma-ink);
  border-bottom: var(--folio-rule) solid var(--lemma-ink);
  padding: 14px 0 0;
  max-width: 1120px;
  margin: 0 auto;
}

.folio-mast__band {
  display: flex;
  align-items: baseline;
  gap: 22px;
  padding: 0 22px 12px;
}

.lemma-mark { color: var(--lemma-ink); display: flex; align-items: baseline; gap: 10px; }
.lemma-mark__name {
  font-family: var(--lemma-sym);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.lemma-mark__sub {
  font-size: 13px;
  color: var(--lemma-ink-soft);
  letter-spacing: 0.16em;
}

.folio-mast__tag {
  margin: 0;
  flex: 1 1 auto;
  font-size: 13.5px;
  font-style: italic;
  color: var(--lemma-ink-soft);
}

.folio-mast__lang {
  margin: 0;
  font-family: var(--lemma-sym);
  font-size: 12px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.folio-mast__lang a { color: var(--lemma-link); }
.folio-mast__langnow { color: var(--lemma-ink-faint); }
.folio-mast__lang a + .folio-mast__langnow,
.folio-mast__langnow + a { margin-left: 10px; }

/* A–Z band */

.lemma-az {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  border-top: var(--folio-rule) solid var(--lemma-ink);
  padding: 0 22px;
}

.lemma-az__cue {
  font-family: var(--lemma-sym);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lemma-ink-faint);
  padding: 6px 12px 6px 0;
  border-right: var(--folio-rule) solid var(--lemma-ink-faint);
  margin-right: 12px;
}

.lemma-az__tick {
  font-family: var(--lemma-sym);
  font-size: 12px;
  color: var(--lemma-ink);
  padding: 6px 7px;
  min-width: 22px;
  text-align: center;
  border-right: var(--folio-rule) solid #e3e3e3;
}
.lemma-az__tick:last-child { border-right: 0; }
.lemma-az__tick:hover,
.lemma-az__tick:focus-visible {
  background: var(--lemma-ink);
  color: var(--lemma-paper);
  text-decoration: none;
}
.lemma-az__tick--off { color: #c9c9c9; }

/* --- grid ---------------------------------------------------------------- */

.folio-grid {
  max-width: 1120px;
  margin: 0 auto;
  padding: 26px 22px 40px;
  display: grid;
  grid-template-columns: var(--folio-side) minmax(0, 1fr);
  gap: 0 var(--folio-gap);
  align-items: start;
}

.folio-side {
  border-right: var(--folio-rule) solid #e3e3e3;
  padding-right: 20px;
  position: sticky;
  top: 0;
  font-size: 14px;
}

.lemma-tree__head {
  font-family: var(--lemma-sym);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lemma-ink-faint);
  margin: 0 0 8px;
  text-transform: uppercase;
}

.lemma-tree__list { list-style: none; margin: 0 0 20px; padding: 0; }

.lemma-tree__item a {
  display: flex;
  gap: 8px;
  align-items: baseline;
  color: var(--lemma-ink);
  padding: 5px 0;
  border-top: var(--folio-rule) solid #ececec;
  font-size: 13.5px;
  line-height: 1.35;
}
.lemma-tree__item:first-child a { border-top: 0; }
.lemma-tree__item a:hover { color: var(--lemma-link); }
.lemma-tree__item--here a { color: var(--lemma-link); font-weight: 600; }

.lemma-tree__code {
  font-family: var(--lemma-sym);
  font-size: 11px;
  color: var(--lemma-ink-faint);
  min-width: 22px;
}
.lemma-tree__label { flex: 1 1 auto; }
.lemma-tree__n {
  font-family: var(--lemma-sym);
  font-size: 11px;
  color: var(--lemma-ink-faint);
}

.folio-side__note {
  font-size: 12.5px;
  margin: 0 0 10px;
  color: var(--lemma-ink-soft);
}

.folio-leaf { min-width: 0; }

/* --- search widget ------------------------------------------------------- */

.lemma-find { margin: 0 0 20px; }
.lemma-find__label {
  display: block;
  font-family: var(--lemma-sym);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lemma-ink-faint);
  margin-bottom: 6px;
}
.lemma-find__input {
  width: 100%;
  font-family: var(--lemma-sym);
  font-size: 15px;
  color: var(--lemma-ink);
  background: var(--lemma-paper);
  border: 0;
  border-bottom: var(--folio-rule-bold) solid var(--lemma-ink);
  padding: 7px 2px;
}
.lemma-find__input:focus { outline: none; border-bottom-color: var(--lemma-link); }
.lemma-find__hint {
  font-size: 12px;
  color: var(--lemma-ink-faint);
  margin: 6px 0 0;
}
.lemma-find__hits { list-style: none; margin: 10px 0 0; padding: 0; }
.lemma-find__hits li { border-top: var(--folio-rule) solid #ececec; padding: 6px 0; }
.lemma-find__hits a { display: block; font-size: 14px; }
.lemma-find__hits .lemma-sym { color: var(--lemma-ink-soft); font-size: 12px; }
.lemma-find__void { font-size: 13px; color: var(--lemma-ink-faint); margin: 10px 0 0; }

.lemma-find--leaf { max-width: var(--folio-measure); margin: 0 0 30px; }
.lemma-find--leaf .lemma-find__input { font-size: 19px; }

/* --- index (front matter) ------------------------------------------------ */

.index-head { border-bottom: var(--folio-rule-bold) solid var(--lemma-ink); padding-bottom: 20px; margin-bottom: 24px; }
.index-head__title { font-size: 34px; line-height: 1.15; margin: 0 0 10px; font-weight: 600; }
.index-head__zh { font-size: 15px; color: var(--lemma-ink-soft); margin: 0 0 14px; letter-spacing: 0.06em; }
.index-head__lead { font-size: 16px; margin: 0; max-width: var(--folio-measure); color: var(--lemma-ink-soft); }

.index-note {
  font-size: 13.5px;
  color: var(--lemma-ink-soft);
  border-left: var(--folio-rule-bold) solid var(--lemma-ink);
  padding-left: 14px;
  margin: 0 0 26px;
  max-width: var(--folio-measure);
}

.index-sec { margin: 0 0 30px; }
.index-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: var(--folio-rule) solid var(--lemma-ink);
  padding-bottom: 6px;
  margin: 0 0 4px;
}
.index-sec__code { font-family: var(--lemma-sym); font-size: 12px; color: var(--lemma-ink-faint); }
.index-sec__name { font-family: var(--lemma-sym); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; }
.index-sec__n { margin-left: auto; font-family: var(--lemma-sym); font-size: 12px; color: var(--lemma-ink-faint); }

.index-cols {
  column-count: 2;
  column-gap: 40px;
  column-rule: var(--folio-rule) solid #ececec;
  margin: 0;
  padding: 0;
  list-style: none;
}
.index-row { break-inside: avoid; padding: 7px 0; border-bottom: var(--folio-rule) solid #f0f0f0; margin: 0; }
.index-row__term { font-size: 15.5px; font-weight: 600; }
.index-row__term .lemma-sym { color: var(--lemma-ink-soft); font-weight: 400; margin-left: 6px; font-size: 12.5px; }
.index-row__gloss { margin: 2px 0 0; font-size: 13.5px; color: var(--lemma-ink-soft); }

.index-letter {
  font-family: var(--lemma-sym);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--lemma-ink-faint);
  border-top: var(--folio-rule-bold) solid var(--lemma-ink);
  margin: 26px 0 0;
  padding-top: 5px;
  scroll-margin-top: 20px;
}

/* --- breadcrumb ---------------------------------------------------------- */

.entry-crumb {
  font-family: var(--lemma-sym);
  font-size: 12px;
  color: var(--lemma-ink-faint);
  margin: 0 0 14px;
}
.entry-crumb a { color: var(--lemma-ink-soft); }
.entry-crumb span + span::before { content: " › "; color: var(--lemma-ink-faint); }

/* --- entry sheet --------------------------------------------------------- */

.entry-sheet { max-width: var(--folio-measure); }

.entry-title { font-size: 30px; line-height: 1.2; margin: 0 0 4px; font-weight: 600; }
.entry-title__alt { font-size: 16px; color: var(--lemma-ink-soft); margin: 0 0 16px; }

.entry-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0;
  border-top: var(--folio-rule) solid var(--lemma-ink);
  border-bottom: var(--folio-rule) solid var(--lemma-ink);
  margin: 0 0 22px;
  padding: 0;
  font-size: 13px;
}
.entry-facts dt {
  font-family: var(--lemma-sym);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lemma-ink-faint);
  padding: 8px 12px 0 0;
}
.entry-facts dd {
  margin: 0;
  padding: 0 12px 9px 0;
  font-family: var(--lemma-sym);
  font-size: 13px;
}

.entry-gloss {
  font-size: 17.5px;
  color: var(--lemma-ink);
  border-left: 2.5px solid var(--lemma-ink);
  padding-left: 16px;
  margin: 0 0 22px;
}

.entry-def {
  border-left: 2.5px solid var(--lemma-ink);
  padding: 2px 0 2px 16px;
  margin: 0 0 26px;
}
.entry-def p { margin: 0; font-size: 17px; }
.entry-def p + p { margin-top: 8px; color: var(--lemma-ink-soft); font-size: 16px; }

.entry-h2 {
  font-family: var(--lemma-sym);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: var(--folio-rule) solid var(--lemma-ink);
  padding-bottom: 5px;
  margin: 30px 0 12px;
  scroll-margin-top: 16px;
}
.entry-sec p { margin: 0 0 12px; }
.entry-sec ul { margin: 0 0 12px; padding-left: 22px; }
.entry-sec li { margin-bottom: 6px; }

.entry-table { width: 100%; border-collapse: collapse; margin: 0 0 16px; font-size: 14px; }
.entry-table th,
.entry-table td {
  border-bottom: var(--folio-rule) solid #e3e3e3;
  padding: 6px 10px 6px 0;
  text-align: left;
  vertical-align: top;
}
.entry-table th {
  font-family: var(--lemma-sym);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lemma-ink-faint);
  border-bottom-color: var(--lemma-ink);
}
.entry-table td.lemma-sym, .entry-table code { font-size: 13px; }

.entry-formula {
  border-top: var(--folio-rule-bold) solid var(--lemma-ink);
  border-bottom: var(--folio-rule-bold) solid var(--lemma-ink);
  padding: 16px 0 14px;
  margin: 0 0 26px;
  text-align: center;
}
.entry-formula__label {
  display: block;
  font-family: var(--lemma-sym);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lemma-ink-faint);
  margin-bottom: 8px;
}
.entry-formula__body {
  font-family: var(--lemma-sym);
  font-size: 19px;
  letter-spacing: 0.01em;
}
.entry-formula__unit { display: block; font-size: 12.5px; color: var(--lemma-ink-soft); margin-top: 6px; }

.entry-plate { margin: 0 0 26px; }
.entry-plate img { display: block; width: 100%; height: auto; border: var(--folio-rule) solid var(--lemma-ink); background: var(--lemma-paper); }
.entry-plate figcaption {
  font-size: 13px;
  color: var(--lemma-ink-soft);
  margin-top: 8px;
  max-width: var(--folio-measure);
}

.entry-worked {
  border: var(--folio-rule) solid var(--lemma-ink);
  padding: 14px 16px 4px;
  margin: 0 0 26px;
}
.entry-worked__label,
.entry-warn__label {
  display: block;
  font-family: var(--lemma-sym);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.entry-worked__label { color: var(--lemma-ink-faint); }
.entry-worked p { margin: 0 0 10px; font-size: 15.5px; }
.entry-worked .lemma-sym { background: #f6f6f6; padding: 1px 4px; }

.entry-warn {
  border: var(--folio-rule) solid var(--lemma-warn);
  border-left-width: 3px;
  padding: 14px 16px 4px;
  margin: 0 0 26px;
}
.entry-warn__label { color: var(--lemma-warn); }
.entry-warn p { margin: 0 0 10px; font-size: 15.5px; }

.entry-pair { display: grid; grid-template-columns: 1fr; gap: 0; margin: 0 0 26px; }
.entry-pair__row { border-top: var(--folio-rule) solid #e3e3e3; padding: 9px 0; }
.entry-pair__row:first-child { border-top: 0; }
.entry-pair__k {
  font-family: var(--lemma-sym);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lemma-ink-faint);
  display: block;
  margin-bottom: 3px;
}
.entry-pair__v { font-size: 14.5px; }

.entry-links { list-style: none; margin: 0 0 30px; padding: 0; }
.entry-links li { border-top: var(--folio-rule) solid #ececec; padding: 7px 0; font-size: 15px; }
.entry-links li:first-child { border-top: 0; }
.entry-links .lemma-sym { color: var(--lemma-ink-faint); font-size: 12.5px; }
.entry-sources .lemma-sym { display: block; margin-top: 2px; word-break: break-all; }

.entry-rail {
  float: right;
  width: 196px;
  margin: 0 0 22px 26px;
  border-top: var(--folio-rule-bold) solid var(--lemma-ink);
  padding-top: 8px;
  font-size: 13px;
}
.entry-rail__head {
  font-family: var(--lemma-sym);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lemma-ink-faint);
  margin: 0 0 8px;
}
.entry-rail ol { list-style: none; margin: 0; padding: 0; counter-reset: rail; }
.entry-rail li { margin-bottom: 7px; padding-left: 18px; position: relative; line-height: 1.4; }
.entry-rail li::before {
  counter-increment: rail;
  content: counter(rail, decimal-leading-zero);
  position: absolute;
  left: 0;
  font-family: var(--lemma-sym);
  font-size: 10.5px;
  color: var(--lemma-ink-faint);
}
.entry-rail a { color: var(--lemma-ink); }
.entry-rail a:hover { color: var(--lemma-link); }

.entry-pager {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: var(--folio-rule) solid var(--lemma-ink);
  margin-top: 34px;
  padding-top: 10px;
  font-size: 14px;
  clear: both;
}
.entry-pager__k {
  display: block;
  font-family: var(--lemma-sym);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lemma-ink-faint);
}

/* --- prose pages (about / contact / privacy / terms) --------------------- */

.prose-sheet { max-width: var(--folio-measure); }
.prose-sheet__title { font-size: 28px; margin: 0 0 6px; font-weight: 600; }
.prose-sheet__zh { font-size: 15px; color: var(--lemma-ink-soft); margin: 0 0 18px; }
.prose-sheet__lead { font-size: 17px; border-left: 2.5px solid var(--lemma-ink); padding-left: 16px; margin: 0 0 26px; }
.prose-block { margin: 0 0 24px; }
.prose-block p { margin: 0 0 12px; }
.prose-block ul { margin: 0 0 12px; padding-left: 22px; }
.prose-block li { margin-bottom: 6px; }
.prose-legend { margin: 0 0 26px; }
.prose-legend img { display: block; width: 100%; height: auto; border: var(--folio-rule) solid var(--lemma-ink); }
.prose-legend figcaption { font-size: 13px; color: var(--lemma-ink-soft); margin-top: 8px; }
.prose-stamp {
  font-family: var(--lemma-sym);
  font-size: 12px;
  color: var(--lemma-ink-faint);
  border-top: var(--folio-rule) solid #e3e3e3;
  padding-top: 8px;
  margin: 0 0 22px;
}
.prose-divider { border-top: var(--folio-rule-bold) solid var(--lemma-ink); margin: 40px 0 26px; }
.prose-langnote {
  font-family: var(--lemma-sym);
  font-size: 12px;
  color: var(--lemma-ink-faint);
  margin: 0 0 20px;
}

/* --- colophon ------------------------------------------------------------ */

.folio-colophon {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 22px 48px;
  font-size: 13px;
  color: var(--lemma-ink-soft);
}
.folio-colophon__rule { border-top: var(--folio-rule-bold) solid var(--lemma-ink); margin-bottom: 12px; }
.folio-colophon__row { display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; }
.folio-colophon__row p { margin: 0; font-family: var(--lemma-sym); font-size: 12px; }
.folio-colophon__nav { display: flex; flex-wrap: wrap; gap: 16px; margin: 12px 0 0; font-size: 13px; }
.folio-colophon__small {
  font-size: 12px;
  color: var(--lemma-ink-faint);
  margin: 12px 0 0;
  font-style: italic;
}
/* Editorial disclaimer: roman, not italic, so it reads as a standing notice
   rather than as a stray printed aside. */
.folio-colophon__note { font-style: normal; color: var(--lemma-ink-soft); }
.folio-colophon__note span { display: block; margin-top: 2px; }

/* --- responsive ---------------------------------------------------------- */

@media (max-width: 900px) {
  .folio-grid { grid-template-columns: minmax(0, 1fr); }
  .folio-side {
    position: static;
    border-right: 0;
    border-bottom: var(--folio-rule) solid #e3e3e3;
    padding: 0 0 18px;
    margin-bottom: 22px;
  }
  .lemma-tree__list { columns: 2; column-gap: 20px; }
  .entry-rail { float: none; width: auto; margin: 0 0 26px; }
  .index-cols { column-count: 1; }
  .folio-mast__band { flex-wrap: wrap; gap: 10px; }
  .folio-mast__tag { flex-basis: 100%; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .index-head__title { font-size: 27px; }
  .entry-title { font-size: 25px; }
  .lemma-az__tick { padding: 6px 4px; min-width: 18px; }
}

@media print {
  .folio-side, .folio-mast__lang, .lemma-find, .entry-pager, .lemma-skip { display: none; }
  .folio-grid { display: block; padding: 0; }
  .entry-rail { float: none; width: auto; }
  a { color: var(--lemma-ink); }
}