:root {
  --paper: #f7f3ea;
  --paper-2: #efe8d9;
  --white: #fffdf8;
  --ink: #23201b;
  --text-uz: #3d3830;
  --muted: #6b6358;         /* 5.3:1 on paper */
  --rule: #d9cfbc;          /* decorative lines only */
  --control: #857a6a;       /* borders of inputs and chips, 3.8:1 (WCAG 1.4.11) */
  --accent: #8a2f1d;        /* reddish brown, like a book cover; 7.6:1 on paper */
  --accent-light: #e2b9a6;
  --highlight: #f6e3a8;
  --serif: "Literata", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  /* Width: full on phones, grows on large monitors, does not stretch endlessly on 4K */
  --page-width: min(100% - 2 * var(--gutter), 84rem);
  --gutter: clamp(1rem, 4vw, 3rem);
  --measure: 44rem;         /* comfortable line length for reading (~70 characters) */
  color-scheme: light;
}

/* Dark theme: follows the system setting unless the visitor picked a theme with the header button.
   Light is the default everywhere else — dark text on a light background reads best at every age. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1c1a17;
    --paper-2: #25221e;
    --white: #25221e;
    --ink: #ece6da;
    --text-uz: #d8d0c2;
    --muted: #b3a998;
    --rule: #4a443b;
    --control: #8c8272;
    --accent: #e89a7e;
    --accent-light: #6b3a2a;
    --highlight: #5c4a14;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #1c1a17;
  --paper-2: #25221e;
  --white: #25221e;
  --ink: #ece6da;
  --text-uz: #d8d0c2;
  --muted: #b3a998;
  --rule: #4a443b;
  --control: #8c8272;
  --accent: #e89a7e;
  --accent-light: #6b3a2a;
  --highlight: #5c4a14;
  color-scheme: dark;
}

/* The whole site is in rem: the root font size grows smoothly with the screen width
   (17px on phones, ~18px at 1440px, 20px at 2560px+) */
html { font-size: clamp(17px, 0.9rem + 0.2vw, 20px); -webkit-text-size-adjust: 100%; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1rem/1.6 var(--serif); }
a { color: var(--accent); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
main:focus { outline: none; }
.container { width: var(--page-width); margin-inline: auto; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden; white-space: nowrap;
  clip: rect(0 0 0 0); clip-path: inset(50%);
}
.skip-link { position: absolute; left: 1rem; top: -4rem; z-index: 10; padding: 0.6rem 1rem; background: var(--ink); color: var(--paper); font: 600 1rem var(--sans); border-radius: 4px; }
.skip-link:focus { top: 1rem; }

/* Header */
.site-header { border-bottom: 1px solid var(--rule); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem 1rem; min-height: 3.75rem; flex-wrap: wrap; }
.logo { font: 600 1rem var(--sans); color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 0.6rem; }
.logo-mark { font: italic 600 1.2rem var(--serif); background: var(--accent); color: var(--paper); padding: 0.1rem 0.45rem 0.2rem; border-radius: 3px; letter-spacing: -1px; }
nav.main-nav { display: flex; gap: 1.4rem; font: 500 0.95rem var(--sans); }
nav.main-nav a { color: var(--muted); text-decoration: none; padding: 0.6rem 0; border-bottom: 2px solid transparent; }
nav.main-nav a:hover { color: var(--ink); }
nav.main-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.theme-toggle { min-height: 2.25rem; padding: 0.3rem 0.8rem; font: 500 0.9rem var(--sans); background: var(--white); color: var(--ink); border: 1px solid var(--control); border-radius: 1.2rem; }
.theme-toggle:hover { border-color: var(--accent); }

/* Search block — compact, so the results are visible on the first screen too */
.search { padding: clamp(1.25rem, 3vw, 2.25rem) 0 1rem; display: grid; gap: 1rem 3rem; align-items: end; }
.search > * { min-width: 0; }  /* a scrolling chip row must not widen the page */
@media (min-width: 64rem) { .search { grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); } }
h1 { font: 600 clamp(1.7rem, 1.2rem + 2vw, 2.6rem)/1.15 var(--serif); margin: 0 0 0.4rem; letter-spacing: -0.02em; }
h1 span { color: var(--accent); font-style: italic; font-weight: 400; }
.lead { color: var(--muted); max-width: var(--measure); margin: 0; }
.search-field { position: relative; }
input[type="search"] {
  width: 100%; font: 1.15rem var(--sans); padding: 0.8rem 2.8rem 0.8rem 1rem;
  border: 2px solid var(--ink); border-radius: 4px; background: var(--white); color: var(--ink);
  -webkit-appearance: none; appearance: none;
}
input[type="search"]::placeholder { color: var(--muted); }
input[type="search"]::-webkit-search-cancel-button { display: none; }
.search-field kbd {
  position: absolute; right: 0.8rem; top: 50%; transform: translateY(-50%);
  font: 0.875rem var(--sans); color: var(--muted); border: 1px solid var(--control); border-radius: 3px; padding: 0 0.4rem; background: var(--paper);
}
@media (hover: none) { .search-field kbd { display: none; } }
.search-hint { font: 0.875rem var(--sans); color: var(--muted); margin: 0.35rem 0 0; }
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.6rem; align-items: center; }
select, button {
  font: 0.95rem var(--sans); padding: 0.55rem 0.75rem; min-height: 2.75rem; border-radius: 4px;
  border: 1px solid var(--control); background: var(--white); color: var(--ink); max-width: 100%;
}
button { background: var(--ink); color: var(--paper); border-color: var(--ink); font-weight: 600; cursor: pointer; }
.particles { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.particles a {
  display: inline-flex; align-items: center; min-height: 2.25rem; padding: 0.3rem 0.8rem;
  font: italic 0.95rem var(--serif); text-decoration: none; color: var(--ink);
  border: 1px solid var(--control); border-radius: 1.2rem; background: var(--white);
}
.particles a:first-child { font: 0.9rem var(--sans); }
.particles a:hover { border-color: var(--accent); }
.particles a[aria-pressed="true"] { background: var(--accent); color: var(--paper); border-color: var(--accent); }

#results { transition: opacity .15s; }
#results.loading { opacity: .55; }
.results-heading { font: 600 0.875rem var(--sans); letter-spacing: 0.04em; color: var(--muted); border-bottom: 1px solid var(--rule); padding-bottom: 0.5rem; margin: 1rem 0 0; }

/* Alphabet index — sticks to the top while scrolling */
.alphabet {
  position: sticky; top: 0; z-index: 2; background: var(--paper);
  display: flex; flex-wrap: wrap; gap: 0.15rem; padding: 0.4rem 0; border-bottom: 1px solid var(--rule);
}
.alphabet a { font: 600 1rem var(--sans); text-decoration: none; min-width: 2.4rem; text-align: center; padding: 0.45rem 0; border-radius: 3px; }
.alphabet a:hover { background: var(--accent); color: var(--paper); }

/* Dictionary: every letter reads top to bottom, split into as many columns as fit */
.dictionary { display: block; }
.letter-group { scroll-margin-top: 4rem; }
.letter { font: italic 600 1.6rem var(--serif); color: var(--accent); margin: 1.4rem 0 0.2rem; border-bottom: 2px solid var(--ink); }
.letter-group ul { list-style: none; padding: 0; margin: 0; columns: 16rem; column-gap: 2.5rem; }
.letter-group li { padding: 0.35rem 0; border-bottom: 1px dotted var(--rule); line-height: 1.35; break-inside: avoid; }
.letter-group li a { font-weight: 600; text-decoration: none; }
.letter-group li a:hover { text-decoration: underline; }
.meaning { color: var(--muted); font-style: italic; font-size: 0.95rem; }

/* Search results: one parallel example each (Linguee/Reverso style) */
.search-results { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 30rem), 1fr)); gap: 0 2.5rem; }
.search-results li { padding: 0.9rem 0; border-bottom: 1px solid var(--rule); }
.result-name { font: italic 600 1.25rem var(--serif); text-decoration: none; }
.result-name:hover { text-decoration: underline; }
.count { font: 500 0.875rem var(--sans); color: var(--muted); background: var(--paper-2); border-radius: 1rem; padding: 0.05rem 0.55rem; white-space: nowrap; }
.sample { margin-top: 0.4rem; font-size: 0.95rem; line-height: 1.5; }
.sample p { margin: 0.2rem 0; }
.sample p[lang="en"] { display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.sample .uz { color: var(--text-uz); padding-left: 0.7rem; border-left: 3px solid var(--accent-light); }
.empty-results { padding: 1.5rem 0; color: var(--muted); font-size: 1.05rem; }

/* Phrasal verb page */
.back-link { font: 0.95rem var(--sans); margin: 1.5rem 0 0; }
.back-link a { text-decoration: none; }
.entry-header { padding: 1rem 0 1.5rem; border-bottom: 2px solid var(--ink); margin-bottom: 0.5rem; }
.entry-header h1 { font-size: clamp(2.3rem, 1.5rem + 4vw, 3.8rem); font-style: italic; }
.properties { display: flex; flex-wrap: wrap; gap: 0.8rem 2.5rem; margin: 1rem 0 0; }
.properties dt { font: 600 0.875rem var(--sans); color: var(--muted); }
.properties dd { margin: 0.1rem 0 0; font-size: 1.05rem; }
.note { font: 0.95rem/1.5 var(--sans); color: var(--muted); max-width: var(--measure); margin: 1rem 0 0; padding-left: 0.8rem; border-left: 3px solid var(--rule); }
.source h2 { font: 600 1.2rem/1.35 var(--serif); margin: 2rem 0 0.2rem; }
.source h2 .count { vertical-align: middle; margin-left: 0.4rem; }
.source-meta { font: 0.9rem var(--sans); color: var(--muted); margin: 0 0 0.5rem; }
.example-pair { margin: 0; padding: 1rem 0; border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2rem; scroll-margin-top: 1rem; }
.example-pair:target { background: var(--paper-2); box-shadow: 0 0 0 0.75rem var(--paper-2); }
.example-pair blockquote { margin: 0; max-width: var(--measure); }
.example-pair .uz { color: var(--text-uz); padding-left: 1.6rem; border-left: 1px solid var(--rule); }
.example-pair figcaption { grid-column: 1 / -1; font: 0.875rem var(--sans); color: var(--muted); }
.permalink { color: var(--muted); text-decoration: none; }
.permalink:hover { color: var(--accent); text-decoration: underline; }
mark { background: linear-gradient(transparent 55%, var(--highlight) 55%); color: inherit; padding: 0 1px; font-weight: 600; }
.related { margin: 2.5rem 0 0.5rem; padding: 1.2rem 1.4rem; background: var(--paper-2); border-radius: 4px; }
.related h2 { font: 600 1rem var(--sans); margin: 0 0 0.5rem; }
.related p { margin: 0; display: flex; flex-wrap: wrap; gap: 0.3rem 1.1rem; }
.related a { font-style: italic; padding: 0.2rem 0; }

/* Text pages */
.prose { max-width: var(--measure); padding: 1.8rem 0; }
.prose h2 { font: 600 1.5rem var(--serif); margin: 2.2rem 0 0.6rem; scroll-margin-top: 1rem; }
.author-line { margin: 1rem 0 0; }
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; margin: 0.7rem 0; }
.data-table th { font: 600 0.875rem var(--sans); color: var(--muted); text-align: left; border-bottom: 2px solid var(--ink); padding: 0.5rem 0.6rem 0.4rem 0; }
.data-table td { border-bottom: 1px solid var(--rule); padding: 0.55rem 0.6rem 0.55rem 0; vertical-align: top; }
.data-table td:first-child { font-style: italic; font-weight: 600; }
.data-table td small { display: block; font: normal 400 0.85rem var(--sans); color: var(--muted); margin-top: 0.2rem; }
.data-table .wrong { color: var(--accent); text-decoration: line-through; }
.stats { display: flex; gap: 1.5rem 2.5rem; flex-wrap: wrap; margin: 1.2rem 0; }
.stats b { display: block; font: 600 2.6rem/1 var(--serif); }
.stats span { font: 0.9rem var(--sans); color: var(--muted); }
.citation { margin: 0.8rem 0; padding: 0.9rem 1.1rem; background: var(--paper-2); border-left: 3px solid var(--accent); font-size: 0.95rem; }
.inline-search { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; margin: 1.5rem 0; }
.inline-search input { flex: 1 1 14rem; font: 1rem var(--sans); padding: 0.6rem 0.8rem; border: 2px solid var(--ink); border-radius: 4px; background: var(--white); color: var(--ink); }

.site-footer { border-top: 1px solid var(--rule); margin-top: 3.5rem; padding: 1.1rem 0 2.5rem; font: 0.875rem/1.55 var(--sans); color: var(--muted); }
.site-footer p { max-width: var(--measure); margin: 0 0 0.4rem; }

@media (max-width: 44rem) {
  .example-pair { grid-template-columns: 1fr; }
  .example-pair .uz { padding-left: 0.8rem; border-left: 3px solid var(--accent-light); }
  /* Without the side-by-side layout, a small label tells the two languages apart */
  .example-pair blockquote::before { content: "EN"; display: block; font: 600 0.75rem var(--sans); color: var(--muted); letter-spacing: 0.06em; }
  .example-pair blockquote.uz::before { content: "UZ"; }
  .alphabet { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; scroll-snap-type: x proximity;
    -webkit-mask-image: linear-gradient(90deg, #000 88%, transparent); mask-image: linear-gradient(90deg, #000 88%, transparent); }
  .alphabet a { flex: 0 0 auto; min-width: 2.75rem; scroll-snap-align: start; }
  .filters select { flex: 1 1 10rem; }
  .particles { flex: 1 1 100%; min-width: 0; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 0.2rem; }
  .particles a { flex: 0 0 auto; }
}

@media (prefers-reduced-motion: reduce) {
  #results { transition: none; }
  html { scroll-behavior: auto; }
}

/* Teachers print entries as handouts */
@media print {
  :root, :root[data-theme] { --paper: #fff; --paper-2: #fff; --white: #fff; --ink: #000; --text-uz: #000; --muted: #444; }
  .site-header, .search, .alphabet, .related, .back-link, .skip-link, .permalink, #search-status { display: none !important; }
  body { font-size: 11pt; }
  .example-pair { break-inside: avoid; grid-template-columns: 1fr 1fr; }
  a { color: inherit; text-decoration: none; }
  mark { background: none; text-decoration: underline; }
}