/*
 * Zen corpus — styles for corpus.html (Corpus Analysis).
 *
 * Builds on zen-base.css: ink on paper, hairline-separated sections instead
 * of cards, quiet controls, mincho for Japanese. Charts use the shared POS
 * and JLPT tokens plus a single-hue ink ramp for magnitudes, so they follow
 * the light and dark themes without repainting.
 *
 * Load order: tailwind.css, zen-base.css, zen-corpus.css.
 */

/* ------------------------------------------------------------------ */
/* 1. Chart tokens                                                      */
/* ------------------------------------------------------------------ */

:root {
  /* JLPT levels. N5 uses stone-soft rather than --jlpt-n5, which is too
     close to the hairline to read as a bar. */
  --cp-n5: var(--stone-soft);
  --cp-n4: var(--jlpt-n4);
  --cp-n3: var(--jlpt-n3);
  --cp-n2: var(--jlpt-n2);
  --cp-n1: var(--jlpt-n1);

  /* Sequential ramp: paper toward ink */
  --cp-seq-1: color-mix(in srgb, var(--ink) 24%, var(--paper));
  --cp-seq-2: color-mix(in srgb, var(--ink) 40%, var(--paper));
  --cp-seq-3: color-mix(in srgb, var(--ink) 56%, var(--paper));
  --cp-seq-4: color-mix(in srgb, var(--ink) 72%, var(--paper));
  --cp-seq-5: color-mix(in srgb, var(--ink) 88%, var(--paper));
  --cp-seq-6: var(--ink);
}

/* ------------------------------------------------------------------ */
/* 2. Page shell                                                        */
/* ------------------------------------------------------------------ */

.corpus { display: block; outline: none; }

.cp-intro {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hair);
}

/* コーパス + CORPUS ANALYSIS, the same title as the study page (学習 STUDY CENTER) */
.cp-title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin: 0;
  color: var(--ink);
  font-weight: 400;
}
.cp-title .ja {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.04em; /* katakana sit wider than 学習, so a little less tracking */
}
.cp-title .en {
  color: var(--stone);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.cp-lede {
  max-width: 38em;
  margin: 12px 0 0;
  color: var(--text-2);
  font-size: 13px;
  line-height: 1.8;
}

/* Section labels (本文 YOUR TEXT, from zen-base) sit on h2 headings here.
   A long English half wraps under the Japanese word rather than splitting it. */
.corpus .section-label { flex-wrap: wrap; gap: 2px 10px; }
.corpus .section-label .ja { white-space: nowrap; }
.corpus h2.section-label { margin: 0 0 6px; }

.cp-desc {
  margin: 0;
  color: var(--stone);
  font-size: 13px;
  line-height: 1.6;
}

.cp-meta {
  color: var(--stone);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.cp-num { color: var(--ink); font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------------ */
/* 3. Workspace: add content | your documents                           */
/* ------------------------------------------------------------------ */

.cp-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 0;
  padding: 36px 0 44px;
}
.cp-pane { min-width: 0; }
.cp-pane:first-child { padding-inline-end: 56px; }
.cp-pane + .cp-pane {
  padding-inline-start: 56px;
  border-inline-start: 1px solid var(--hair);
}

.cp-input-tabs { margin-bottom: 20px; }

.cp-panel { display: grid; gap: 14px; }

.zen input.cp-field,
.zen textarea.cp-field {
  display: block;
  width: 100%;
  padding: 10px 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hair);
  border-radius: 0;
  color: var(--ink);
  font-size: 14px;
}
.zen .cp-field:focus { outline: none; border-bottom-color: var(--ink); }
.zen .cp-field:focus-visible { outline: none; box-shadow: 0 1px 0 var(--ink); }
.zen .cp-field::placeholder { color: var(--stone); }
.zen textarea.cp-textarea {
  min-height: 9.5em;
  font-family: var(--font-jp);
  font-size: 17px;
  line-height: 1.9;
  resize: vertical;
}

.cp-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
}

.cp-drop {
  display: grid;
  justify-items: start;
  gap: 6px;
  padding: 26px 22px;
  border: 1px dashed var(--stone-soft) !important;
  border-radius: 0;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}
.cp-drop:hover,
.cp-drop.is-dragover {
  border-color: var(--ink) !important;
  background: var(--wash);
}

/* Documents pane: the list, then Start Analysis and its folded options.
   With no documents (.corpus.is-empty) only the empty note shows. */
.corpus.is-empty #clearDocsBtn,
.corpus.is-empty .cp-count,
.corpus.is-empty .cp-doclist,
.corpus.is-empty .cp-run { display: none; }

.cp-count { margin: 0 0 12px; color: var(--text-2); font-size: 14px; }
.cp-count .cp-num { font-size: 22px; margin-inline-end: 2px; }

.zen .cp-analyze {
  min-height: 44px;
  padding: 0 28px;
  letter-spacing: 0.1em;
}

.cp-run { margin-top: 24px; }

.cp-options-wrap { margin-top: 12px; }
.cp-options-summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-height: 32px;
  padding: 6px 0;
  color: var(--text-2);
  font-size: 13px;
  list-style: none;
  cursor: pointer;
}
.cp-options-summary::-webkit-details-marker { display: none; }
.cp-options-summary::marker { content: ''; }
/* A small chevron before the label, turning down when open */
.cp-options-summary::before {
  content: '';
  flex: none;
  align-self: center;
  width: 5px;
  height: 5px;
  border-right: 1px solid var(--stone);
  border-bottom: 1px solid var(--stone);
  transform: rotate(-45deg);
  transition: transform 0.2s ease;
}
.cp-options-wrap[open] > .cp-options-summary::before { transform: rotate(45deg); }
.cp-options-summary:hover { color: var(--ink); }
.cp-options-summary:hover::before { border-color: var(--ink); }
/* The filters that are on, on one line */
.cp-options-summary .cp-meta {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cp-options {
  margin: 4px 0 0;
  padding: 0 0 0 15px;
  border: 0;
  min-width: 0;
}
.cp-check {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px dotted var(--hair);
  color: var(--text-2);
  font-size: 13px;
  cursor: pointer;
}
.cp-check:hover { color: var(--ink); }
.cp-check input { flex: none; width: 14px; height: 14px; margin: 0; }

.cp-docs-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.zen .cp-danger { color: var(--stone); font-size: 12px; }
/* No top padding: Clear All shares the heading's baseline */
.zen .cp-docs-head .cp-danger { padding-top: 0; }
.zen .cp-danger:hover { color: var(--seal); }

.cp-doclist {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}
.cp-doclist:empty,
.cp-doclist[data-count='0'] { border-top: 0; }
.cp-doclist .virt-row {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 64px;
  box-sizing: border-box;
  padding: 0 2px;
  border-bottom: 1px solid var(--hair-soft);
}
.cp-doc-main { flex: 1; min-width: 0; }
.cp-doc-top {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.cp-doc-title {
  overflow: hidden;
  color: var(--ink);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cp-doc-chars {
  flex: none;
  color: var(--stone);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}
.cp-doc-preview {
  overflow: hidden;
  color: var(--stone);
  font-family: var(--font-jp);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cp-doc-remove {
  flex: none;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: none;
  border: 0;
  color: var(--stone);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}
.cp-doc-remove:hover { background: var(--wash); color: var(--seal); }

.cp-empty { padding: 14px 0 4px; }
.cp-empty p { margin: 0; }
.cp-empty p:first-child { color: var(--text-2); font-size: 13px; }

/* Thin scrollbars on inner scrollers */
.cp-scroll,
.cp-doclist {
  scrollbar-width: thin;
  scrollbar-color: var(--hair) transparent;
}

/* ------------------------------------------------------------------ */
/* 4. Results                                                           */
/* ------------------------------------------------------------------ */

.cp-results {
  padding-top: 36px;
  border-top: 1px solid var(--hair);
  scroll-margin-top: 16px;
}
.cp-results-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px 24px;
  margin-bottom: 22px;
}

.cp-status-error { color: var(--seal); }

.cp-loading { display: inline-flex; align-items: center; gap: 10px; }
.cp-loading::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--seal);
  animation: zen-breathe 1.2s ease-in-out infinite;
}

/* Progress: a hairline with an ink fill */
.cp-progress { margin: 0 0 28px; max-width: 560px; }
.cp-progress-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--text-2);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.cp-progress-row span:last-child { color: var(--stone); font-variant-numeric: tabular-nums; }
.cp-progress-track { position: relative; height: 2px; background: var(--hair); }
.cp-progress-fill { height: 100%; background: var(--ink); transition: width 0.3s ease; }
.cp-progress .cp-meta { margin-top: 6px; }

/* Toolbar: the mode tabs (exports sit in the results head) */
.cp-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  margin-bottom: 30px;
}
.cp-toolbar .segmented-tabs { border-bottom: 0; }
.cp-toolbar-actions { display: flex; flex-wrap: wrap; gap: 4px 20px; }

/* Headline numbers */
.cp-kpis {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0 0 28px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--hair);
}
.cp-kpi {
  min-width: 0;
  padding: 14px 20px 18px;
}
.cp-kpi:first-child { padding-inline-start: 0; }
.cp-kpi + .cp-kpi { border-inline-start: 1px solid var(--hair); }
.cp-kpi dt,
.cp-stat dt {
  color: var(--stone);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.cp-kpi dd {
  margin: 6px 0 0;
  color: var(--ink);
  font-size: 30px;
  font-weight: 400;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.cp-kpi dd.cp-kpi-note {
  margin-top: 4px;
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.5;
}
.cp-kpi dd.cp-kpi-levels {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 12px;
  padding-top: 6px;
  font-size: 13px;
  line-height: 1.6;
}
.cp-lv {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-2);
  white-space: nowrap;
}
.cp-lv b { color: var(--ink); font-weight: 400; }

/* Results tabs */
.cp-tabs { margin-bottom: 32px; gap: 0 26px; }
.cp-tabs .segmented-tab { font-size: 13px; padding: 10px 0 7px; }

/* Blocks: hairline-topped sections in a grid */
.cp-tabpanel > * + * { margin-top: 40px; }
.cp-grid {
  display: grid;
  gap: 40px 48px;
}
.cp-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cp-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cp-span-2 { grid-column: 1 / -1; }

.cp-block {
  min-width: 0;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
}
.cp-block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  flex-wrap: wrap;
  min-height: 28px;
  margin-bottom: 4px;
}
.cp-block-title-row { display: flex; align-items: center; gap: 4px; min-width: 0; }
.cp-block-title {
  margin: 0;
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.03em;
}
.cp-block > .cp-desc { margin-bottom: 16px; }
.cp-block-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 16px;
  font-size: 12px;
}

.info-btn {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: none;
  border: 0;
  border-radius: 50%;
  color: var(--stone-soft);
  cursor: pointer;
}
.info-btn:hover { color: var(--ink); background: var(--wash); }
.info-btn svg { width: 15px; height: 15px; }

.zen .cp-small-link { padding: 4px 0 2px; font-size: 12px; }

/* Stat tiles */
.cp-stats {
  display: grid;
  gap: 0;
  margin: 0;
}
.cp-stats-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cp-stats-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cp-stats-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.cp-stat {
  min-width: 0;
  padding: 10px 16px 12px 0;
  border-bottom: 1px dotted var(--hair);
}
.cp-stat dd { margin: 4px 0 0; }
.cp-stat-value {
  color: var(--ink);
  font-size: 24px;
  line-height: 1.25;
  font-variant-numeric: tabular-nums;
}
.cp-stat-note { color: var(--stone); font-size: 12px; }

.cp-big {
  margin: 4px 0 2px;
  color: var(--ink);
  font-size: 36px;
  font-weight: 400;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------------ */
/* 5. Charts                                                            */
/* ------------------------------------------------------------------ */

/* Horizontal bars: label | thin bar | value */
.cp-bars { display: grid; gap: 7px; }
.cp-bar {
  display: grid;
  grid-template-columns: 5.2em minmax(0, 1fr) 3.2em;
  align-items: center;
  gap: 12px;
  font-size: 12px;
}
.cp-bar-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  overflow: hidden;
  color: var(--text-2);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.cp-bar-value {
  color: var(--ink);
  text-align: end;
  font-variant-numeric: tabular-nums;
}
.cp-bar-track { position: relative; display: block; height: 6px; }
.cp-bar-track::before {
  content: '';
  position: absolute;
  inset: 50% 0 auto;
  border-top: 1px solid var(--hair-soft);
}
.cp-bar-fill {
  position: relative;
  display: block;
  height: 100%;
  min-width: 0;
  background: var(--stone);
}
.cp-bar-fill[data-zero='false'] { min-width: 2px; }
.cp-bars-pos .cp-bar { grid-template-columns: 6.5em minmax(0, 1fr) 3.2em; }
.cp-bars-pos .cp-bar-label { font-family: var(--font-jp); font-size: 13px; letter-spacing: 0; color: var(--ink); }

/* Tones: JLPT, unknown, sequential ramp */
[data-tone='n5'] { --tone: var(--cp-n5); }
[data-tone='n4'] { --tone: var(--cp-n4); }
[data-tone='n3'] { --tone: var(--cp-n3); }
[data-tone='n2'] { --tone: var(--cp-n2); }
[data-tone='n1'] { --tone: var(--cp-n1); }
[data-tone='s1'] { --tone: var(--cp-seq-1); }
[data-tone='s2'] { --tone: var(--cp-seq-2); }
[data-tone='s3'] { --tone: var(--cp-seq-3); }
[data-tone='s4'] { --tone: var(--cp-seq-4); }
[data-tone='s5'] { --tone: var(--cp-seq-5); }
[data-tone='s6'] { --tone: var(--cp-seq-6); }
[data-tone='ink'] { --tone: var(--ink); }
[data-tone='stone'] { --tone: var(--stone); }
.cp-bar-fill[data-tone] { background: var(--tone); }
/* Unknown / unranked: an empty dotted outline, not a colour */
.cp-bar-fill[data-tone='unk'] {
  background: transparent;
  border: 1px dotted var(--stone);
  box-sizing: border-box;
}

.cp-swatch {
  flex: none;
  display: inline-block;
  width: 12px;
  height: 0;
  border-top: 3px solid var(--tone, var(--stone));
}
.cp-swatch[data-tone='unk'] { border-top: 1px dotted var(--stone); }

/* POS dots (replaces features/pos-dots.css) */
.pos-dot {
  flex: none;
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--stone-soft);
}
.pos-dot[data-pos='名詞'],
.pos-dot[data-pos='代名詞'] { background: var(--pos-noun); }
.pos-dot[data-pos='動詞'] { background: var(--pos-verb); }
.pos-dot[data-pos='形容詞'] { background: var(--pos-adj); }
.pos-dot[data-pos='副詞'] { background: var(--pos-adv); }
.pos-dot[data-pos='助動詞'] { background: var(--pos-aux); }
.pos-dot[data-pos='接続詞'],
.pos-dot[data-pos='連体詞'],
.pos-dot[data-pos='感動詞'] { background: var(--pos-conj); }
.pos-dot[data-pos='助詞'],
.pos-dot[data-pos='接頭詞'] { background: transparent; border: 1px dotted var(--pos-particle); box-sizing: border-box; }
.pos-dot[data-pos='記号'],
.pos-dot[data-pos='フィラー'],
.pos-dot[data-pos='その他'] { background: var(--hair); }
.cp-bar-fill[data-pos='名詞'],
.cp-bar-fill[data-pos='代名詞'] { background: var(--pos-noun); }
.cp-bar-fill[data-pos='動詞'] { background: var(--pos-verb); }
.cp-bar-fill[data-pos='形容詞'] { background: var(--pos-adj); }
.cp-bar-fill[data-pos='副詞'] { background: var(--pos-adv); }
.cp-bar-fill[data-pos='助動詞'] { background: var(--pos-aux); }
.cp-bar-fill[data-pos='接続詞'],
.cp-bar-fill[data-pos='連体詞'],
.cp-bar-fill[data-pos='感動詞'] { background: var(--pos-conj); }
.cp-bar-fill[data-pos='助詞'],
.cp-bar-fill[data-pos='接頭詞'] { background: var(--pos-particle); }

/* Difficulty meters */
.cp-meters { display: grid; gap: 18px; }
.cp-meter-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  color: var(--text-2);
  font-size: 13px;
}
.cp-meter-value { color: var(--ink); font-size: 18px; font-variant-numeric: tabular-nums; }
.cp-meter-main .cp-meter-value { font-size: 34px; line-height: 1.1; }
.cp-meter-scale { color: var(--stone); font-size: 12px; }
.cp-meter-track { position: relative; height: 4px; background: var(--hair-soft); }
.cp-meter-main .cp-meter-track { height: 6px; }
.cp-meter-fill { height: 100%; background: var(--stone); transition: width 0.5s ease; }
.cp-meter-main .cp-meter-fill { background: var(--ink); }

/* Ranked lists: hardest sentences, grammar table, rare words, n-grams */
.cp-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}
.cp-list-scroll { max-height: 22rem; overflow-y: auto; }
.cp-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px dotted var(--hair);
}
.cp-row-main { flex: 1; min-width: 0; }
.cp-row-count {
  flex: none;
  margin-inline-start: auto;
  color: var(--text-2);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}
.cp-level {
  flex: none;
  min-width: 2.4em;
  color: var(--stone);
  font-size: 11px;
  letter-spacing: 0.08em;
}
.cp-level[data-tone] { color: var(--text-2); }
.cp-level[data-tone]::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 0;
  margin-inline-end: 6px;
  border-top: 2px solid var(--tone);
  vertical-align: middle;
}
.cp-jp { font-family: var(--font-jp); font-size: 15px; color: var(--ink); }

.cp-sentence {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dotted var(--hair);
}
.cp-sentence-score {
  color: var(--ink);
  font-size: 18px;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}
.cp-sentence-score small { display: block; color: var(--stone); font-size: 10px; letter-spacing: 0.08em; line-height: 1.2; }
.cp-sentence-text { font-family: var(--font-jp); font-size: 16px; line-height: 1.85; color: var(--ink); }

.cp-ngrams {
  columns: 3;
  column-gap: 40px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}
.cp-ngrams .cp-row { break-inside: avoid; }
.cp-ngrams .cp-rank { flex: none; width: 1.8em; color: var(--stone); font-size: 11px; font-variant-numeric: tabular-nums; }

/* Inputs inside blocks */
.zen input.cp-filter {
  width: 9em;
  padding: 4px 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hair);
  border-radius: 0;
  font-size: 12px;
}
.zen input.cp-filter:focus { outline: none; border-bottom-color: var(--ink); box-shadow: 0 1px 0 var(--ink); }
.zen select.cp-select {
  padding: 3px 4px;
  background: var(--surface);
  font-size: 12px;
}
.cp-inline-label { color: var(--stone); font-size: 12px; }

/* Histogram */
.cp-histogram {
  display: flex;
  align-items: stretch;
  gap: 0;
  height: 168px;
  padding-top: 8px;
}
.cp-hist-col {
  flex: 1;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
}
.cp-hist-plot {
  position: relative;
  flex: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  border-bottom: 1px solid var(--ink);
}
.cp-hist-bar { width: min(14px, 55%); background: var(--text-2); }
.cp-hist-bar[data-zero='true'] { height: 0 !important; }
.cp-hist-label {
  margin-top: 5px;
  color: var(--stone);
  font-size: 10px;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.cp-hist-count {
  margin-bottom: 3px;
  color: var(--stone);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

/* Coverage curve */
.cp-curve {
  position: relative;
  height: 168px;
  margin: 6px 0 24px 38px;
  border-left: 1px solid var(--hair);
  border-bottom: 1px solid var(--ink);
}
.cp-curve svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.cp-curve .cp-grid-line { stroke: var(--hair-soft); stroke-width: 1; }
.cp-curve .cp-curve-line { fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-linejoin: round; }
.cp-curve .cp-curve-area { fill: var(--wash); stroke: none; }
.cp-tick {
  position: absolute;
  color: var(--stone);
  font-size: 10px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.cp-tick-y { left: -34px; width: 28px; text-align: end; transform: translateY(-50%); }
.cp-tick-x { bottom: -16px; transform: translateX(-50%); }

/* Matrices: POS flow, JLPT by document */
.cp-matrix-wrap { max-height: 20rem; overflow: auto; }
.cp-matrix {
  display: grid;
  gap: 2px;
  width: max-content;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}
.cp-matrix-head {
  overflow: hidden;
  padding: 2px 2px 4px;
  color: var(--stone);
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cp-matrix-rowhead {
  overflow: hidden;
  padding-inline-end: 8px;
  color: var(--text-2);
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cp-matrix-jp { font-family: var(--font-jp); font-size: 12px; }
/* Figures are ink on light cells and paper on dark ones; corpus.controller.js
   (cellTone) keeps each cell's tone where one of them reads at 4.5:1 */
.cp-cell {
  min-width: 2.8em;
  padding: 5px 4px;
  background: color-mix(in srgb, var(--ink) var(--v, 0%), var(--paper));
  color: var(--ink);
  text-align: center;
}
.cp-cell.is-strong { color: var(--paper); }
.cp-cell.is-empty { color: var(--stone); }

.cp-scale {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--stone);
  font-size: 11px;
}
.cp-scale i {
  display: inline-block;
  width: 14px;
  height: 8px;
}

/* Legend toggles for the text heatmaps */
.cp-legend { display: flex; flex-wrap: wrap; gap: 2px 18px; margin-bottom: 10px; }
.cp-legend-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  background: none;
  border: 0;
  color: var(--ink);
  font: inherit;
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
}
.cp-legend-btn[aria-pressed='false'] { color: var(--stone); text-decoration: line-through; text-decoration-color: var(--stone-soft); }
.cp-legend-btn[aria-pressed='false'] .cp-swatch { opacity: 0.35; }
.zen .cp-seg-btn { padding: 4px 0 2px; font-size: 12px; }

/* Text heatmaps: the analyzer's reading surface in miniature */
.cp-heatmap {
  max-height: 22rem;
  overflow: auto;
  padding: 14px 2px;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  font-family: var(--font-jp);
  font-size: 17px;
  line-height: 2.2;
  color: var(--ink);
}
.cp-heatmap > div { margin: 0 0 4px; }

/* Compare */
.cp-pick {
  max-height: 12rem;
  overflow: auto;
  border-top: 1px solid var(--hair);
}
.cp-pick label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px dotted var(--hair);
  color: var(--text-2);
  font-size: 13px;
  cursor: pointer;
}
.cp-pick label:hover { color: var(--ink); }
.cp-pick input { margin: 0; }
.cp-group-label {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.cp-versus {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

/* Per-document cards → rows */
.cp-doc-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0 32px; border-top: 1px solid var(--hair); }
.cp-doc-card { padding: 12px 0; border-bottom: 1px dotted var(--hair); min-width: 0; }
.cp-doc-card-title { overflow: hidden; color: var(--ink); font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }

/* Per-document tabs */
.cp-perdoc-tabs { margin-bottom: 28px; }

/* Member badge in the account menu */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 7px;
  border: 1px solid var(--hair);
  border-radius: 2px;
  color: var(--text-2);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.6;
}

/* Info dialog (corpus.help.js) */
.cp-info-body {
  margin: 0;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-line;
}

/* ------------------------------------------------------------------ */
/* 6. Small screens and touch                                           */
/* ------------------------------------------------------------------ */

@media (max-width: 1080px) {
  .cp-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cp-stats-6 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .cp-ngrams { columns: 2; }
}

@media (max-width: 900px) {
  .cp-workspace { grid-template-columns: minmax(0, 1fr); gap: 40px; padding-top: 28px; }
  .cp-pane:first-child { padding-inline-end: 0; }
  .cp-pane + .cp-pane {
    padding-inline-start: 0;
    padding-top: 32px;
    border-inline-start: 0;
    border-top: 1px solid var(--hair);
  }
  .cp-grid-2,
  .cp-grid-3 { grid-template-columns: minmax(0, 1fr); }
  .cp-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cp-kpi:nth-child(odd) { padding-inline-start: 0; border-inline-start: 0; }
  .cp-kpi:nth-child(n + 3) { border-top: 1px solid var(--hair); }
  .cp-kpi:last-child:nth-child(odd) { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .cp-title .ja { font-size: 32px; }
  .cp-intro { padding-bottom: 24px; }
  .cp-kpi { padding: 12px 12px 14px; }
  .cp-kpi dd { font-size: 24px; }
  .cp-ngrams { columns: 1; }
  .cp-stats-3,
  .cp-stats-6 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cp-versus { gap: 16px; }
  .cp-tabs { gap: 0 20px; }
  .cp-options { padding-inline-start: 0; }
}

@media (pointer: coarse) {
  .info-btn,
  .cp-doc-remove { width: 44px; height: 44px; }
  .cp-check,
  .cp-pick label,
  .cp-legend-btn,
  .cp-options-summary,
  .cp-tabs .segmented-tab,
  .cp-input-tabs .segmented-tab,
  .cp-toolbar .segmented-tab,
  .cp-perdoc-tabs .segmented-tab { min-height: 44px; }
  .zen .cp-small-link,
  .zen .cp-seg-btn,
  .zen .cp-danger { min-height: 44px; }
  .export-btn { min-height: 44px; }
}

@media print {
  .cp-workspace,
  .cp-toolbar,
  .cp-tabs,
  .info-btn { display: none !important; }
  .cp-heatmap,
  .cp-list-scroll,
  .cp-matrix-wrap,
  .cp-pick { max-height: none; overflow: visible; }
  .cp-block { break-inside: avoid; }
}

/* Japanese UI: the English half of a label is translated, so drop the wide tracking */
html[lang|='ja'] .cp-title .en,
html[lang|='ja'] .corpus .section-label .en { letter-spacing: 0.04em; }