:root {
  --canvas: #fbfbfa;
  --surface: #ffffff;
  --ink: #1c1c1e;
  --blue: #0055ff;
  --blue-dark: #003fc2;
  --muted: #67676e;
  --line: #e2e2e7;
  --soft: #f1f3f8;
  --success: #087a42;
  --warning: #8a5500;
  --serif: Georgia, Cambria, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --measure: 780px;
  --wide: 1160px;
  --shadow: 0 18px 55px rgba(28, 28, 30, .08);
}

* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-underline-offset: .18em; }
a:hover { color: var(--blue-dark); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
img, svg { max-width: 100%; }
[hidden] { display: none !important; }
::selection { background: #cad8ff; color: var(--ink); }

.skip-link {
  position: fixed;
  top: -6rem;
  left: 1rem;
  z-index: 1000;
  padding: .7rem 1rem;
  background: var(--ink);
  color: #fff;
  border-radius: .35rem;
}
.skip-link:focus { top: 1rem; }
.site-shell { width: min(100% - 3rem, var(--wide)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 251, 250, .94);
  backdrop-filter: blur(14px);
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand {
  color: var(--ink);
  font: 700 1.35rem/1 var(--serif);
  letter-spacing: -.035em;
  text-decoration: none;
}
.brand:hover { color: var(--ink); }
.header-nav { display: flex; align-items: center; gap: 1.4rem; }
.header-nav a { color: #505057; font-size: .8rem; font-weight: 760; text-decoration: none; }
.header-nav a:hover, .header-nav a[aria-current="page"] { color: var(--blue); }
.nav-toggle {
  display: none;
  min-height: 42px;
  padding: .55rem .8rem;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
}

main { min-height: calc(100vh - 180px); }
.page { width: min(100% - 2rem, var(--measure)); margin-inline: auto; padding: 3.5rem 0 5rem; }
.page-wide { width: min(100% - 2rem, 1040px); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .45rem; margin: 0 0 2rem; color: var(--muted); font-size: .84rem; }
.breadcrumbs a { color: inherit; }
.eyebrow { color: var(--blue); font-size: .72rem; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
.page-title, .hero-title, .term-title { font-family: var(--serif); letter-spacing: -.045em; line-height: .98; }
.page-title { margin: .7rem 0 1rem; font-size: clamp(2.8rem, 7vw, 5.5rem); }
.lede { max-width: 720px; margin: 0; color: #4f4f55; font-size: 1.12rem; }

.hero { padding: clamp(4.5rem, 9vw, 7.5rem) 0 4rem; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(320px, .72fr); gap: clamp(2rem, 7vw, 6.5rem); align-items: center; }
.hero-title { margin: .8rem 0 1.35rem; font-size: clamp(4rem, 10vw, 7.3rem); }
.hero-title em { color: var(--blue); font-weight: 400; }
.hero-copy { max-width: 660px; margin: 0; color: #4e4e55; font-size: clamp(1.05rem, 2vw, 1.28rem); }
.hero-card { position: relative; padding: 1.65rem; border: 1px solid #d8d8de; background: #fff; box-shadow: var(--shadow); }
.hero-card::before { content: ""; position: absolute; inset: 10px -10px -10px 10px; z-index: -1; border: 1px solid var(--line); background: #f0f0ee; }
.hero-card-label { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: .85rem; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .67rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.hero-term { margin: 1.2rem 0 .3rem; font: 700 4rem/1 var(--serif); letter-spacing: -.05em; }
.hero-pronunciation { color: var(--muted); font-size: .86rem; }
.hero-definition { margin: 1.3rem 0 1.5rem; padding-left: 1rem; border-left: 3px solid var(--blue); font-family: var(--serif); }
.hero-link { display: flex; justify-content: space-between; gap: 1rem; padding-top: .9rem; border-top: 1px solid var(--line); font-size: .8rem; font-weight: 800; text-decoration: none; }

.search-panel { margin-top: 2.1rem; }
.search-panel label { display: block; margin-bottom: .5rem; font-size: .75rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.search-control { display: grid; grid-template-columns: 1fr auto; min-height: 58px; border: 1px solid #c9cad1; background: #fff; box-shadow: 0 10px 28px rgba(28, 28, 30, .05); }
.search-control:focus-within { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(0,85,255,.1); }
.search-control input { min-width: 0; padding: 0 1rem; border: 0; outline: 0; background: transparent; }
.search-count { display: grid; place-items: center; padding: 0 1rem; border-left: 1px solid var(--line); color: var(--muted); font-size: .75rem; }
.filter-row { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1rem; }
.filter-button { padding: .45rem .8rem; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: #505057; font-size: .75rem; font-weight: 750; }
.filter-button:hover, .filter-button.is-active { border-color: var(--blue); background: var(--blue); color: #fff; }

.section { padding: 4.5rem 0; border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, .42fr); gap: 2rem; align-items: end; margin-bottom: 2rem; }
.section-heading h2 { margin: .55rem 0 0; font: 700 clamp(2.4rem, 5vw, 4rem)/1 var(--serif); letter-spacing: -.04em; }
.section-heading p { margin: 0; color: var(--muted); }
.entry-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.entry-card { position: relative; min-height: 305px; display: flex; flex-direction: column; padding: 1.3rem; border: 1px solid var(--line); background: #fff; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.entry-card:hover { transform: translateY(-3px); border-color: #b6c7ff; box-shadow: 0 12px 34px rgba(28,28,30,.06); }
.entry-card h3 { margin: 1.2rem 0 .35rem; font: 700 2.15rem/1 var(--serif); letter-spacing: -.035em; }
.entry-card h3 a { color: var(--ink); text-decoration: none; }
.entry-card h3 a::after { content: ""; position: absolute; inset: 0; }
.entry-pronunciation { color: var(--muted); font-size: .8rem; }
.entry-card p { color: #55555b; font-size: .9rem; }
.entry-meta { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: auto; }
.pill { display: inline-flex; padding: .28rem .55rem; border-radius: 999px; background: var(--soft); color: #54545a; font-size: .68rem; font-weight: 740; }
.empty-state { margin: 1rem 0 0; padding: 1.2rem; border: 1px dashed #bfc0c8; color: var(--muted); }

.term-header { padding-bottom: 2.2rem; border-bottom: 1px solid var(--line); }
.term-title-row { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 1.5rem; }
.term-title { margin: .5rem 0 .35rem; font-size: clamp(4.2rem, 13vw, 8.2rem); }
.term-pronunciation { color: var(--muted); font: 400 1.1rem/1.4 var(--serif); }
.status-badge { display: inline-flex; align-items: center; gap: .45rem; padding: .45rem .75rem; border: 1px solid #e4c990; background: #fff8e8; color: var(--warning); font-size: .72rem; font-weight: 800; }
.definition-block { margin: 2.2rem 0; padding: 1.45rem 1.55rem; border-left: 4px solid var(--blue); background: #fff; font: 400 clamp(1.35rem, 3vw, 1.75rem)/1.5 var(--serif); box-shadow: 0 12px 35px rgba(28,28,30,.04); }
.action-row { display: flex; flex-wrap: wrap; gap: .7rem; margin: 1.2rem 0 0; }
.action-button { display: inline-flex; align-items: center; justify-content: center; gap: .45rem; min-height: 44px; padding: .6rem .9rem; border: 1px solid var(--ink); background: var(--ink); color: #fff; font-size: .78rem; font-weight: 800; text-decoration: none; }
.action-button:hover { background: var(--blue); border-color: var(--blue); color: #fff; }
.action-button.secondary { border-color: var(--line); background: #fff; color: var(--ink); }
.action-button.secondary:hover { border-color: var(--blue); color: var(--blue); }
.action-button[disabled] { opacity: .5; cursor: not-allowed; }
.voice-note { margin: .65rem 0 0; color: var(--muted); font-size: .78rem; }

.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 2.4rem; margin-top: 2.5rem; }
.prose h2 { margin: 2.6rem 0 .8rem; font: 700 2rem/1.1 var(--serif); letter-spacing: -.025em; }
.prose h3 { margin: 1.8rem 0 .5rem; font: 700 1.3rem/1.2 var(--serif); }
.prose p, .prose li { color: #48484f; }
.example-list { display: grid; gap: .75rem; padding: 0; list-style: none; }
.example-list li { padding: 1rem 1.1rem; border: 1px solid var(--line); background: #fff; font-family: var(--serif); font-style: italic; }
.info-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
.info-card { padding: 1rem; border: 1px solid var(--line); background: #fff; }
.info-card strong { display: block; margin-bottom: .25rem; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.info-card p { margin: 0; font-size: .87rem; }
.contrast { padding: 1rem 1.1rem; border: 1px solid #b8c8ff; background: #f1f5ff; color: #303f68; }
.sidebar { align-self: start; position: sticky; top: 96px; display: grid; gap: 1rem; }
.sidebar-card { padding: 1rem; border: 1px solid var(--line); background: #fff; }
.sidebar-card h2 { margin: 0 0 .7rem; font: 700 1.2rem/1.2 var(--serif); }
.sidebar-card dl { margin: 0; }
.sidebar-card dt { margin-top: .75rem; color: var(--muted); font-size: .67rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.sidebar-card dd { margin: .1rem 0 0; font-size: .85rem; }
.related-list { display: grid; gap: .5rem; }
.related-list a { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-bottom: 1px solid var(--line); color: var(--ink); font-weight: 750; text-decoration: none; }
.related-list a:last-child { border-bottom: 0; }

.panel { padding: 1.3rem; border: 1px solid var(--line); background: #fff; }
.panel + .panel { margin-top: 1rem; }
.panel h2 { margin: 0 0 .7rem; font: 700 1.65rem/1.2 var(--serif); }
.data-list { display: grid; gap: .8rem; padding: 0; list-style: none; }
.data-list li { padding-bottom: .8rem; border-bottom: 1px solid var(--line); }
.data-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.saved-grid { display: grid; gap: .8rem; }
.saved-item { padding: 1rem; border: 1px solid var(--line); background: #fff; }
.saved-item h2 { margin: 0 0 .35rem; font: 700 1.7rem/1.1 var(--serif); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.form-field { display: grid; gap: .35rem; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: .76rem; font-weight: 800; }
.form-field input, .form-field textarea, .form-field select { width: 100%; padding: .75rem; border: 1px solid #c9cad1; background: #fff; color: var(--ink); }
.form-field textarea { min-height: 130px; resize: vertical; }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { outline: 3px solid rgba(0,85,255,.14); border-color: var(--blue); }
.output-box { width: 100%; min-height: 230px; padding: 1rem; border: 1px solid var(--line); background: #17171a; color: #f4f4f5; font: 400 .78rem/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
.notice { padding: 1rem; border: 1px solid #b8c8ff; background: #f1f5ff; color: #35436b; }

.site-footer { border-top: 1px solid var(--line); background: #fff; }
.footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 2rem; padding: 2rem 0; }
.footer-brand { color: var(--ink); font: 700 1.2rem/1 var(--serif); text-decoration: none; }
.footer-inner p { margin: .55rem 0 0; color: var(--muted); font-size: .8rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .8rem 1.2rem; }
.footer-links a { color: var(--muted); font-size: .75rem; }

.toast { position: fixed; right: 1rem; bottom: 1rem; z-index: 100; max-width: min(360px, calc(100vw - 2rem)); padding: .75rem 1rem; background: var(--ink); color: #fff; box-shadow: var(--shadow); font-size: .82rem; }
:focus-visible { outline: 3px solid rgba(0,85,255,.38); outline-offset: 3px; }

@media (max-width: 850px) {
  .hero-grid, .section-heading, .content-grid { grid-template-columns: 1fr; }
  .entry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sidebar { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  body { font-size: 16px; }
  .site-shell { width: min(100% - 2rem, var(--wide)); }
  .nav-toggle { display: inline-flex; align-items: center; gap: .55rem; }
  .header-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: .7rem 1rem 1rem;
    border-bottom: 1px solid var(--line);
    background: var(--canvas);
    box-shadow: 0 15px 30px rgba(28,28,30,.08);
  }
  .nav-open .header-nav { display: flex; }
  .header-nav a { padding: .75rem; border-bottom: 1px solid var(--line); }
  .header-nav a:last-child { border-bottom: 0; }
  .hero { padding-top: 3.5rem; }
  .hero-title { font-size: clamp(3.7rem, 18vw, 5.8rem); }
  .hero-card { margin-right: .6rem; }
  .entry-grid, .info-grid, .form-grid, .sidebar { grid-template-columns: 1fr; }
  .form-field.full { grid-column: auto; }
  .entry-card { min-height: 250px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 420px) {
  .page, .page-wide { width: min(100% - 1.5rem, var(--measure)); }
  .site-shell { width: min(100% - 1.5rem, var(--wide)); }
  .hero-term { font-size: 3.25rem; }
  .term-title { font-size: clamp(3.4rem, 19vw, 5rem); }
  .action-row { display: grid; }
  .action-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

@media print {
  .site-header, .site-footer, .action-row, .voice-note, .sidebar, .filter-row, .search-panel { display: none !important; }
  body { background: #fff; color: #000; font-size: 12pt; }
  .page { width: 100%; padding: 0; }
  a { color: #000; text-decoration: none; }
}