/* ============================================================
   Schémas explicatifs des Lab Notes (design/VISUAL_SPEC_SCHEMAS.md v1.0)
   Feuille commune, liée par le gabarit d'article APRÈS son bloc <style>,
   et seulement sur les pages qui contiennent un schéma.
   Aucun JavaScript : l'interaction repose sur des radios natives et :has().
   Tous les sélecteurs commencent par .article-body .lab-figure.
   Mobile d'abord : régime compact sous 768 px, régime normal au-dessus.
   ============================================================ */

/* ---------- 1. Tokens et cadre (§1.3, §1.4) ---------- */
.article-body .lab-figure {
  --fig-ink: var(--text);
  --fig-ink-2: var(--text-secondary);
  --fig-rule: var(--border);
  --fig-accent: var(--accent);
  --fig-hit: transparent;
  --fig-on-ink: var(--bg);
  --fig-lit: var(--fig-accent);
  --fig-row-outline: none;
  --fig-s1: 1rem;
  --fig-s2: 0.875rem;
  --fig-s3: 0.75rem;
  --fig-row-h: 52px;
  --fig-ease: var(--dur-fast, 250ms) var(--ease-card, ease);
  margin: var(--space-6) 0;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--fig-rule);
  border-bottom: 1px solid var(--fig-rule);
  color: var(--fig-ink);
  font-size: var(--fig-s2);
  line-height: 1.5;
}

@supports (color: color-mix(in srgb, red 8%, white)) {
  .article-body .lab-figure {
    --fig-hit: color-mix(in srgb, var(--accent) 8%, var(--bg));
  }
}

@media (min-width: 768px) {
  .article-body .lab-figure {
    --fig-s1: 1.0625rem;
    --fig-s2: 0.9375rem;
    --fig-row-h: 48px;
    margin: var(--space-7) 0;
    padding: var(--space-6) 0;
  }
}

.article-body .lab-figure > * {
  max-width: 36rem;
}

/* Pièges du gabarit (§1.11) : lettrine et marges des <p>. */
.article-body .lab-figure p {
  margin: 0;
}

.article-body .lab-figure p:first-child::first-letter {
  float: none;
  font-size: inherit;
  line-height: inherit;
  margin: 0;
  font-weight: inherit;
  color: inherit;
}

.article-body .lab-figure__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---------- 2. En-tête et légende (§1.2, §1.5) ---------- */
.article-body .lab-figure__head {
  display: block;
}

.article-body .lab-figure__kicker {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fig-s3);
  line-height: 1.3;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--fig-ink-2);
}

.article-body .lab-figure__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--fig-accent);
}

.article-body .lab-figure__title {
  display: block;
  margin-top: var(--space-1);
  font-weight: 600;
  font-size: var(--fig-s1);
  line-height: 1.3;
  text-wrap: balance;
}

.article-body .lab-figure__key {
  display: flex;
  flex-wrap: wrap;
  column-gap: var(--space-4);
  margin-top: var(--space-3);
  color: var(--fig-ink-2);
}

.article-body .lab-figure__key > span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* ---------- 3. Noeuds : disque = 1, anneau = 0 (§1.6) ---------- */
.article-body .lab-figure__node {
  display: inline-block;
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: var(--stroke-node, 1.5px) solid var(--fig-ink-2);
  background-color: transparent;
  vertical-align: 0;
  transition: background-color var(--fig-ease), border-color var(--fig-ease), transform var(--fig-ease);
}

.article-body .lab-figure__node[data-bit="1"],
.article-body .lab-figure [data-bit="1"] > .lab-figure__node {
  background-color: var(--fig-ink);
  border-color: var(--fig-ink);
}

/* ---------- 4. Contrôles : pastilles radio (§1.9) ---------- */
.article-body .lab-figure__controls,
.article-body .lab-figure__readout {
  display: none;
}

.article-body .lab-figure__controls {
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.article-body .lab-figure__ask {
  flex-basis: 100%;
}

@media (min-width: 768px) {
  .article-body .lab-figure__ask {
    flex-basis: auto;
    margin-right: var(--space-2);
  }
}

.article-body .lab-figure__pill {
  position: relative;
  display: inline-flex;
  cursor: pointer;
}

.article-body .lab-figure__pill input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  overflow: hidden;
  clip-path: inset(50%);
}

.article-body .lab-figure__pill > span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 44px;
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--fig-ink-2);
  border-radius: var(--radius-pill, 999px);
  background-color: transparent;
  color: var(--fig-ink);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fig-s3);
  line-height: 1.3;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  transition: background-color var(--fig-ease), border-color var(--fig-ease), color var(--fig-ease);
}

.article-body .lab-figure__pill > span::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--fig-ink-2);
  background-color: transparent;
}

@media (hover: hover) {
  .article-body .lab-figure__pill:hover > span {
    border-color: var(--fig-ink);
    background-color: var(--fig-hit);
  }
}

.article-body .lab-figure__pill input:checked + span {
  border-color: var(--fig-ink);
  background-color: var(--fig-ink);
  color: var(--fig-on-ink);
}

.article-body .lab-figure__pill input:checked + span::before {
  border-color: var(--fig-on-ink);
  background-color: var(--fig-on-ink);
}

/* Repli :checked:focus : WebKit perd :focus-visible quand les flèches changent de radio.
   Dans un groupe radio, la sélection suit le focus ; Safari ne donne pas le focus au clic. */
.article-body .lab-figure__pill input:focus-visible + span,
.article-body .lab-figure__pill input:checked:focus + span {
  outline: 2px solid var(--fig-ink);
  outline-offset: 3px;
}

/* ---------- 5. Phrase liée à l'état (§1.9) ---------- */
.article-body .lab-figure__readout {
  margin-top: var(--space-3);
  min-height: 4.5em; /* 3 lignes à 1.5 : aucun saut de page entre deux états */
}

@media (min-width: 768px) {
  .article-body .lab-figure__readout {
    min-height: 3em; /* 2 lignes */
  }
}

.article-body .lab-figure__readout [data-show] {
  display: none;
}

.article-body .lab-figure__readout [data-show="s0"] {
  display: block;
}

/* Sans :has(), contrôles et phrase restent masqués : jamais de bouton inerte (§1.8). */
@supports selector(:has(*)) {
  .article-body .lab-figure__controls {
    display: flex;
  }

  .article-body .lab-figure__readout {
    display: block;
  }
}

/* ---------- 6. États s1 à s6 (§1.9) : ajouter un schéma ne touche jamais ce bloc ---------- */
.article-body .lab-figure:has([value="s1"]:checked) tr[data-on~="s1"],
.article-body .lab-figure:has([value="s2"]:checked) tr[data-on~="s2"],
.article-body .lab-figure:has([value="s3"]:checked) tr[data-on~="s3"],
.article-body .lab-figure:has([value="s4"]:checked) tr[data-on~="s4"],
.article-body .lab-figure:has([value="s5"]:checked) tr[data-on~="s5"],
.article-body .lab-figure:has([value="s6"]:checked) tr[data-on~="s6"] {
  background-color: var(--fig-hit);
  outline: var(--fig-row-outline);
  outline-offset: -2px;
}

.article-body .lab-figure:has([value="s1"]:checked) tr[data-on~="s1"] > th,
.article-body .lab-figure:has([value="s2"]:checked) tr[data-on~="s2"] > th,
.article-body .lab-figure:has([value="s3"]:checked) tr[data-on~="s3"] > th,
.article-body .lab-figure:has([value="s4"]:checked) tr[data-on~="s4"] > th,
.article-body .lab-figure:has([value="s5"]:checked) tr[data-on~="s5"] > th,
.article-body .lab-figure:has([value="s6"]:checked) tr[data-on~="s6"] > th {
  box-shadow: inset 3px 0 0 var(--fig-accent);
}

.article-body .lab-figure:has([value="s1"]:checked) th[data-col="s1"],
.article-body .lab-figure:has([value="s2"]:checked) th[data-col="s2"],
.article-body .lab-figure:has([value="s3"]:checked) th[data-col="s3"],
.article-body .lab-figure:has([value="s4"]:checked) th[data-col="s4"],
.article-body .lab-figure:has([value="s5"]:checked) th[data-col="s5"],
.article-body .lab-figure:has([value="s6"]:checked) th[data-col="s6"] {
  box-shadow: inset 0 -3px 0 var(--fig-accent);
}

.article-body .lab-figure:has([value="s1"]:checked) [data-on~="s1"] [data-col="s1"] .lab-figure__node,
.article-body .lab-figure:has([value="s2"]:checked) [data-on~="s2"] [data-col="s2"] .lab-figure__node,
.article-body .lab-figure:has([value="s3"]:checked) [data-on~="s3"] [data-col="s3"] .lab-figure__node,
.article-body .lab-figure:has([value="s4"]:checked) [data-on~="s4"] [data-col="s4"] .lab-figure__node,
.article-body .lab-figure:has([value="s5"]:checked) [data-on~="s5"] [data-col="s5"] .lab-figure__node,
.article-body .lab-figure:has([value="s6"]:checked) [data-on~="s6"] [data-col="s6"] .lab-figure__node {
  background-color: var(--fig-lit);
  border-color: var(--fig-lit);
  transform: scale(1.2);
}

.article-body .lab-figure:has(input:checked) [data-show="s0"] {
  display: none;
}

.article-body .lab-figure:has([value="s1"]:checked) [data-show="s1"],
.article-body .lab-figure:has([value="s2"]:checked) [data-show="s2"],
.article-body .lab-figure:has([value="s3"]:checked) [data-show="s3"],
.article-body .lab-figure:has([value="s4"]:checked) [data-show="s4"],
.article-body .lab-figure:has([value="s5"]:checked) [data-show="s5"],
.article-body .lab-figure:has([value="s6"]:checked) [data-show="s6"] {
  display: block;
}

/* ---------- 7. Famille « verite » : table de vérité (§2.3) ---------- */
.article-body .lab-figure__table {
  width: 100%;
  margin-top: var(--space-4);
  table-layout: fixed;
  border-collapse: collapse;
  line-height: 1.3;
}

.article-body .lab-figure__table .c-fiche { width: 22%; }
.article-body .lab-figure__table .c-x { width: 19%; }
.article-body .lab-figure__table .c-y { width: 16%; }
.article-body .lab-figure__table .c-op { width: 13%; }
.article-body .lab-figure__table .c-op-large { width: 17%; }

@media (min-width: 768px) {
  .article-body .lab-figure__table .c-fiche { width: 26%; }
  .article-body .lab-figure__table .c-x { width: 15%; }
  .article-body .lab-figure__table .c-y { width: 14%; }
  .article-body .lab-figure__table .c-op { width: 13%; }
  .article-body .lab-figure__table .c-op-large { width: 19%; }
}

.article-body .lab-figure__table th,
.article-body .lab-figure__table td {
  padding: var(--space-2) 2px;
  font-weight: 600;
  transition: background-color var(--fig-ease), box-shadow var(--fig-ease);
}

.article-body .lab-figure__table thead th {
  vertical-align: top;
  text-align: center;
  border-bottom: 1px solid var(--fig-ink-2);
}

.article-body .lab-figure__table tbody tr {
  border-bottom: 1px solid var(--fig-rule);
  transition: background-color var(--fig-ease);
}

/* Intitulé de rangée : 4 px à gauche pour que la marque de 3 px ne touche pas la lettre. */
.article-body .lab-figure__table tbody th {
  height: var(--fig-row-h);
  padding-left: var(--space-1);
  text-align: left;
  vertical-align: middle;
}

.article-body .lab-figure__table td {
  text-align: center;
  vertical-align: middle;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-weight: 500;
}

.article-body .lab-figure__table td .lab-figure__node {
  margin-right: var(--space-2);
}

/* Séparation questions / opérations : à gauche de la première colonne d'opération. */
.article-body .lab-figure__table :not([data-col]) + [data-col] {
  border-left: 1px solid var(--fig-rule);
}

.article-body .lab-figure__q,
.article-body .lab-figure__op,
.article-body .lab-figure__f {
  display: block;
}

.article-body .lab-figure__op {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fig-s3);
  letter-spacing: 0.10em;
  text-transform: uppercase;
}

.article-body .lab-figure__f {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: var(--fig-s3);
  letter-spacing: 0;
  color: var(--fig-ink-2);
  white-space: nowrap;
}

/* Formule longue : deux segments insécables ; sous 768 px, coupée à l'endroit du <wbr> prévu.
   Le <wbr> lui-même est retiré du rendu : entre deux blocs, Chromium en ferait une ligne vide. */
.article-body .lab-figure__f > span {
  display: block;
}

.article-body .lab-figure__f > wbr {
  display: none;
}

@media (min-width: 768px) {
  .article-body .lab-figure__f > span {
    display: inline;
  }
}

.article-body .lab-figure__nw {
  white-space: nowrap;
}

/* ---------- 8. Famille « grille » : SVG à l'échelle 1 (§3.4) ---------- */
.article-body .lab-figure__svg {
  display: block;
  max-width: 100%;
  height: auto;
  margin-top: var(--space-4);
}

.article-body .lab-figure__tick {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  fill: var(--fig-ink-2);
  text-anchor: middle;
}

.article-body .lab-figure__tick--ace {
  font-weight: 500;
  fill: var(--fig-ink);
}

.article-body .lab-figure__rule {
  stroke: var(--fig-rule);
  stroke-width: 1;
  shape-rendering: crispEdges;
}

.article-body .lab-figure__wire {
  stroke: var(--fig-accent);
  stroke-width: 1.5;
  stroke-linecap: round;
}

.article-body .lab-figure__ring {
  fill: var(--bg);
  stroke: var(--fig-ink-2);
  stroke-width: 1;
}

.article-body .lab-figure__lit {
  fill: var(--fig-accent);
}

.article-body .lab-figure__notes {
  margin-top: var(--space-4);
  color: var(--fig-ink-2);
}

.article-body .lab-figure__calc {
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--fig-ink);
  white-space: nowrap;
}

/* Sous 768 px, chaque calcul passe sous sa phrase. */
.article-body .lab-figure__step .lab-figure__calc {
  display: block;
}

@media (min-width: 768px) {
  .article-body .lab-figure__step .lab-figure__calc {
    display: inline;
  }
}

/* ---------- 9. Préférences et médias (§1.8, §1.9) ---------- */
@media (prefers-reduced-motion: reduce) {
  .article-body .lab-figure__node,
  .article-body .lab-figure__pill > span,
  .article-body .lab-figure__table th,
  .article-body .lab-figure__table td,
  .article-body .lab-figure__table tbody tr {
    transition: none;
  }
}

@media (forced-colors: active) {
  .article-body .lab-figure {
    --fig-lit: Highlight;
    --fig-row-outline: 2px solid Highlight;
  }

  .article-body .lab-figure__node,
  .article-body .lab-figure__dot,
  .article-body .lab-figure__pill > span::before {
    forced-color-adjust: none;
    border-color: CanvasText;
  }

  .article-body .lab-figure__node {
    background-color: Canvas;
  }

  .article-body .lab-figure__dot,
  .article-body .lab-figure__node[data-bit="1"],
  .article-body .lab-figure [data-bit="1"] > .lab-figure__node {
    background-color: CanvasText;
  }

  .article-body .lab-figure__pill input:checked + span {
    forced-color-adjust: none;
    border-color: Highlight;
    background-color: Highlight;
    color: HighlightText;
  }

  .article-body .lab-figure__pill input:checked + span::before {
    border-color: HighlightText;
    background-color: HighlightText;
  }
}

@media print {
  .article-body .lab-figure__controls,
  .article-body .lab-figure__readout {
    display: none;
  }
}

/* Revue DA du 12/10 (C2) : noms d'opération sur une ligne, formules sur la suivante */
.article-body .lab-figure__table thead th > span {
  line-height: 1.125rem;
}