:root {
  color-scheme: light;
  --ink: #000;
  --muted: #5f6368;
  --line: #cfd4d8;
  --paper: #fbf6ec;
  --accent: #064f8f;
  --accent-soft: #ddebf4;
  --reader-font-size: 20px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Tahoma, Geneva, Verdana, sans-serif;
  font-size: var(--reader-font-size);
  line-height: 1.45;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 246, 236, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.header-main {
  display: grid;
  grid-template-columns: auto minmax(180px, 420px) auto auto auto;
  gap: 14px;
  align-items: center;
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 18px 8px;
}
.wordmark {
  font: 700 20px/1 system-ui, sans-serif;
  letter-spacing: 0;
  text-decoration: none;
}
.search-wrap { position: relative; }
[data-search] {
  width: 100%;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  padding: 0 12px;
  font: 15px/1.2 system-ui, sans-serif;
}
.search-results {
  position: absolute;
  inset: 40px 0 auto 0;
  max-height: 360px;
  overflow: auto;
  background: white;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 10px 24px rgba(31, 41, 51, 0.12);
}
.search-results a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  font: 14px/1.3 system-ui, sans-serif;
  text-decoration: none;
}
.search-results a:hover { background: var(--accent-soft); }
.top-links, .lang-toggle, .az-strip { font: 14px/1.2 system-ui, sans-serif; }
.top-links { display: flex; gap: 12px; }
.top-links a[href$="#glossary"] { display: none; }
.reader-controls {
  display: inline-flex;
  gap: 4px;
  align-items: center;
}
.reader-font-btn {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  color: var(--ink);
  cursor: pointer;
  font: 700 14px/1 system-ui, sans-serif;
}
.reader-font-btn:hover { background: var(--accent-soft); }
.reader-font-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
.lang-toggle button {
  border: 0;
  background: white;
  color: var(--muted);
  padding: 7px 9px;
  cursor: pointer;
  font: inherit;
}
.lang-toggle button.active { background: var(--accent); color: white; }
.lang-toggle button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.az-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 18px 10px;
}
.az-strip a {
  min-width: 28px;
  padding: 5px 7px;
  border-radius: 4px;
  text-align: center;
  text-decoration: none;
}
.az-strip a.active, .az-strip a:hover { background: var(--accent-soft); }
main {
  max-width: 820px;
  margin: 0 auto;
  padding: 34px 22px 72px;
}
h1, h2 {
  letter-spacing: 0;
  line-height: 1.2;
}
h1 {
  margin: 0 0 18px;
  font-size: 42px;
}
h2 {
  margin: 34px 0 12px;
  font-size: 24px;
}
.home-index {
  padding-top: 18px;
}
.home-title-block {
  max-width: 780px;
  margin: 0 auto;
  padding: 18px 0 30px;
  text-align: center;
  border-bottom: 1px solid var(--line);
}
.home-title-block h1 {
  margin-bottom: 14px;
  color: #111;
  font-size: 48px;
}
.home-credit {
  margin: 0 auto 14px;
  max-width: 680px;
  color: #2f3133;
  font: 18px/1.55 system-ui, sans-serif;
}
.source-link {
  display: inline-block;
  font: 15px/1.3 system-ui, sans-serif;
}
.lede, .breadcrumb, .status, .stats, .entry-footer, .redirect-note {
  font-family: system-ui, sans-serif;
}
.lede { color: var(--muted); max-width: 680px; }
.breadcrumb {
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 14px;
}
.status {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}
.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0;
}
.stats span {
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
}
.letter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  gap: 8px;
  margin-top: 28px;
}
.letter-grid a, .entry-list li {
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.letter-grid a {
  display: flex;
  justify-content: space-between;
  padding: 10px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 6px;
}
.home-letter-grid {
  grid-template-columns: repeat(auto-fit, minmax(68px, 1fr));
  max-width: 760px;
  margin: 30px auto 0;
}
.home-letter-grid a {
  min-height: 64px;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font: 700 24px/1 system-ui, sans-serif;
}
.home-letter-grid a:hover {
  background: var(--accent-soft);
}
.entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: system-ui, sans-serif;
}
.entry-list li {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 9px 0;
}
.sense {
  border-top: 1px solid var(--line);
  padding-top: 8px;
}
.sense:first-of-type { border-top: 0; padding-top: 0; }
.entry-body p { margin: 0 0 8px; }
.entry-body ul { padding-left: 1.4rem; }
.entry-body li { margin: 0.28rem 0; }
.lang-block.lang-en, .lang-block.lang-vi { display: none; }
body.lang-en .lang-block.lang-en, body.lang-vi .lang-block.lang-vi { display: block; }
.translation-missing {
  color: var(--muted);
  font-style: italic;
}
.dppn-term-link {
  color: #1e6b9a;
  text-decoration-style: dotted;
}
.dppn-term-unlinked { color: inherit; }
.dppn-term-t23, .dppn-term-t28 { font-style: italic; }
.redirect-note {
  padding: 8px 10px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
}
.entry-footer {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

@media (max-width: 760px) {
  .header-main {
    grid-template-columns: auto 1fr auto auto;
  }
  .top-links { display: none; }
  h1 { font-size: 32px; }
  .home-title-block h1 { font-size: 36px; }
  .home-credit { font-size: 16px; }
  main { padding-inline: 16px; }
}