/* BEC — page Méthode. Chargée après site.css, uniquement sur /methode/.
   Un héros court, une séquence en six étapes — texte à gauche, scène fixe à droite qui garde
   les mêmes objets d'une étape à l'autre —, une frontière, un appel final.
   Mouvement : opacité, légère translation, hauteur, surlignage, traits qui se dessinent ; lent. */

:root { --m-t: 720ms; }

/* identifiants : jamais coupés en deux */
.frag__head .mono { white-space: nowrap; }
.m-quote { position: relative; padding-left: 16px; border-left: 2px solid var(--cobalt-line); font-size: 15px; line-height: 1.55; color: var(--ink); text-wrap: pretty; }
.m-quote .src { display: block; margin-top: 6px; font-size: 12px; color: var(--ink-faint); }

/* Règle de méthode BEC (texte exact) */
.m-rule { padding: 14px 18px 16px; border-radius: var(--r-md); background: var(--canvas); }
.m-rule__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 650; color: var(--ink); }
.m-rule__head .mono { font-size: 11px; letter-spacing: 0.01em; text-transform: none; font-weight: 500; color: var(--ink-faint); }
.m-rule__title { margin-top: 6px; font-size: 15px; line-height: 1.35; font-weight: 650; letter-spacing: -0.01em; }
.m-rule__text { margin-top: 4px; font-size: 14px; line-height: 1.55; color: var(--ink-soft); text-wrap: pretty; }

/* ------------------------------------------------------------- 1. Héros */
.m-hero .display { max-width: 9.6em; }
/* tout part du haut, sans vide au-dessus du titre */
.m-hero .hero__grid { align-items: start; }
@media (min-width: 1101px) { .m-hero .hero__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.m-hero .hero__copy { padding-top: clamp(8px, 2vw, 32px); }
/* Index des six étapes : même rail que la séquence, cartes de même hauteur, intervalles égaux */
.m-index { width: 100%; max-width: 540px; justify-self: end; padding-top: clamp(8px, 2vw, 32px); }
.m-index ol { position: relative; display: grid; gap: 10px; }
.m-index ol::before { content: ""; position: absolute; left: 4px; top: 30px; bottom: 30px; width: 1px; background: var(--cobalt-line); }
.m-index li { position: relative; padding-left: 28px; }
.m-index li::before { content: ""; position: absolute; left: 0; top: 50%; width: 9px; height: 9px; margin-top: -4.5px; border-radius: 50%; background: var(--white); box-shadow: inset 0 0 0 1.5px var(--cobalt); }
.m-index li:first-child::before { background: var(--cobalt); box-shadow: 0 0 0 4px var(--cobalt-soft); }
.m-index__step {
  display: grid; grid-template-columns: 26px 116px minmax(0, 1fr); align-items: baseline; column-gap: 12px;
  min-height: 60px; padding: 18px 20px; border: 1px solid var(--border); border-radius: var(--r-md);
  background: var(--white); box-shadow: var(--shadow-frag); font-size: 14px; line-height: 1.35; color: var(--ink-soft);
}
.m-index__step .mono { font-size: 11.5px; font-weight: 600; color: var(--cobalt); }
.m-index__step strong { font-size: 16px; font-weight: 650; letter-spacing: -0.012em; color: var(--ink); }
.m-index__step:hover strong, .m-index__step:focus-visible strong { color: var(--cobalt); }
/* écran large : l'index, un peu plus haut, se centre verticalement sur la colonne de texte */
@media (min-width: 1101px) {
  .m-index { align-self: center; padding-top: 0; }
  .m-index ol { gap: 14px; }
  .m-index ol::before { top: 36px; bottom: 36px; }
  .m-index__step { min-height: 72px; padding: 22px 24px; }
}

/* ------------------------------------------------------ 2. La séquence */
.m-seq { padding-block: clamp(56px, 6vw, 96px) clamp(72px, 8vw, 128px); }
.m-seq__grid { display: grid; grid-template-columns: minmax(0, 1fr); }
.m-seq__scene { display: none; }

/* Colonne de texte */
.m-step { display: grid; gap: 18px; align-content: start; max-width: 36em; }
.m-step + .m-step { margin-top: 96px; }
.m-step__title { display: grid; gap: 14px; font-size: clamp(2rem, 1.35rem + 1.3vw, 2.625rem); line-height: 1.05; letter-spacing: -0.035em; font-weight: 560; }
.m-step__title .mono { display: flex; align-items: center; gap: 10px; font-size: 12.5px; line-height: 1.3; letter-spacing: 0.02em; font-weight: 600; color: var(--cobalt); }
.m-step__title .mono::before { content: ""; width: 18px; height: 1.5px; border-radius: 2px; background: currentColor; }
.m-step__lead { font-size: clamp(1.15rem, 1rem + 0.4vw, 1.3125rem); line-height: 1.45; letter-spacing: -0.012em; font-weight: 500; color: var(--ink); text-wrap: pretty; }
.m-step__text { font-size: 1.0625rem; line-height: 1.6; color: var(--ink-soft); text-wrap: pretty; }
.m-step__key { padding-left: 16px; border-left: 2px solid var(--cobalt); font-size: 1.0625rem; line-height: 1.5; font-weight: 600; color: var(--ink); text-wrap: pretty; }
.m-step__note { font-size: 14px; line-height: 1.55; color: var(--ink-faint); text-wrap: pretty; }
.m-step__block { display: grid; gap: 10px; }
.m-step__block .m-step__note { margin-top: 2px; }
.m-step .link-arrow--quiet { justify-self: start; margin-top: -4px; }
.m-phases { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 20px; font-size: 14.5px; line-height: 1.4; }
.m-phases li { display: grid; grid-template-columns: 26px minmax(0, 1fr); }
.m-phases .mono { padding-top: 2px; color: var(--p-accent); font-weight: 600; }
.m-list { display: grid; gap: 3px; font-size: 15.5px; line-height: 1.45; color: var(--ink); }
.m-list li { position: relative; padding-left: 18px; }
.m-list li::before { content: ""; position: absolute; left: 2px; top: 0.66em; width: 5px; height: 5px; border-radius: 50%; background: var(--cobalt); }
.m-list--two { gap: 6px; font-weight: 550; }
.m-natures { display: flex; flex-wrap: wrap; gap: 6px; }
.m-natures .tag { font-size: 12.5px; color: var(--ink); background: var(--white); }

/* ---- Objets de la scène (et des figures fixes) */
.m-card { position: relative; background: var(--white); border: 1px solid var(--border); border-radius: var(--r-md); font-size: 14px; line-height: 1.5; color: var(--ink); transition: border-color 400ms var(--ease), background-color 400ms var(--ease); }
.m-card__body { padding: 6px 16px 14px; }
.m-card__title { font-size: 15px; line-height: 1.35; font-weight: 650; letter-spacing: -0.01em; }
.m-card__meta { font-size: 12.5px; line-height: 1.45; color: var(--ink-faint); }
.m-card__line { font-size: 13.5px; line-height: 1.45; color: var(--ink-soft); }
.m-card__line .mono { font-size: 11px; color: var(--ink-faint); }
.m-card__hint { display: grid; gap: 2px; font-size: 12.5px; line-height: 1.5; color: var(--ink-faint); }
.m-card__hint .small-label { font-size: 10px; }
.quote + .m-card__hint { margin-top: 12px; }
.m-card__reason { font-size: 13px; line-height: 1.5; color: var(--ink); }
.m-card.t-decl .t-decl__q { font-size: 13.5px; }
.m-card .t-evidence__title { font-size: 15px; }
.m-card .quote { margin-top: 8px; font-size: 13.5px; }
.m-card .t-finding__title { margin-top: 2px; font-size: 16px; }
.m-card .t-finding__state { margin-top: 8px; }
.m-card--exam { background: var(--cobalt-soft); border-color: var(--cobalt-line); }
.m-card--exam .frag__head, .m-card--exam .frag__head .mono { color: var(--cobalt); }
.m-card--version .frag__head .mono { font-size: 10.5px; }
/* identifiant long sur carte étroite : il passe sous le libellé plutôt que de l'écraser */
.m-card .frag__head { flex-wrap: wrap; row-gap: 2px; }
.m-nature { display: inline-block; margin-left: 6px; font-size: 12px; color: var(--ink-faint); }

/* parties dépliées selon l'étape : la hauteur suit, sans saut */
.m-fold { display: grid; grid-template-rows: 1fr; }
.m-fold__in { min-height: 0; overflow: hidden; }
.m-fold__pad { padding-top: 8px; }

.m-cells { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 16px; }
.m-cells dt { font-size: 11.5px; color: var(--ink-faint); }
.m-cells dd { margin-top: 1px; font-size: 13.5px; line-height: 1.4; font-weight: 550; }
.m-cells + .m-card__hint { margin-top: 10px; }

.m-designate { display: grid; gap: 8px; padding: 10px 12px 12px; border-radius: 10px; background: var(--canvas); }
.m-designate__q { font-size: 13.5px; line-height: 1.45; font-weight: 550; }
.m-designate__q .mono { margin-right: 8px; font-size: 11px; font-weight: 600; color: var(--p-accent); }
.m-designate .choice { padding: 7px 10px; font-size: 13px; }
.m-designate__doc { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.m-designate__doc .mono, .m-rows .mono { display: inline-flex; align-items: center; min-height: 20px; padding: 1px 6px; border-radius: 5px; font-size: 10.5px; color: var(--ink-soft); background: var(--white); box-shadow: inset 0 0 0 1px var(--border); white-space: nowrap; }
.m-rows .mono { background: var(--canvas); }

/* critères de qualification */
.m-crit { display: grid; gap: 7px; padding: 2px 0 2px; }
.m-crit div { display: grid; grid-template-columns: 112px minmax(0, 1fr); column-gap: 10px; align-items: baseline; font-size: 13px; line-height: 1.45; }
.m-crit dt { position: relative; padding-left: 15px; font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 650; color: var(--cobalt); }
.m-crit dt::before { content: ""; position: absolute; left: 1px; top: 0.3em; width: 8px; height: 8px; border-radius: 50%; background: var(--cobalt); box-shadow: inset 0 0 0 1.5px var(--cobalt); }
.m-verdict { display: flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 15px; line-height: 1.3; font-weight: 650; color: var(--p-positive); }
.m-verdict::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.m-stage .m-verdict { margin-top: 6px; transition: margin-top var(--m-t) var(--ease); }
.m-fold.is-open + .m-verdict { margin-top: 12px; }
.m-card__line--segments span { white-space: nowrap; }
.m-o--qualif .m-card__body > .m-verdict:first-child { margin-top: 2px; }

.m-rows { display: grid; gap: 8px; }
.m-rows div { display: grid; grid-template-columns: 128px minmax(0, 1fr); column-gap: 12px; font-size: 13px; line-height: 1.45; }
.m-rows dt { padding-top: 1px; font-size: 11.5px; color: var(--ink-faint); }
.m-rows .mono + .mono { margin-left: 2px; }
.m-o--constat .m-fold .domain-line { margin-bottom: -2px; }

/* la limite reste attachée au constat */
.m-limit .m-fold__pad { display: grid; gap: 3px; padding: 10px 16px 12px; border-top: 1px solid #ECE2CC; border-radius: 0 0 var(--r-md) var(--r-md); background: #FFFDF8; font-size: 13px; line-height: 1.5; transition: background-color 500ms var(--ease), box-shadow 500ms var(--ease); }
.m-limit .small-label { color: var(--p-partial-text); }
.m-limit.is-hl .m-fold__pad { background: #FFF5E0; box-shadow: inset 3px 0 0 var(--p-partial); }
.m-limit__doc { display: block; font-size: 12.5px; color: var(--ink-soft); }
.m-limit__doc .mono { display: block; margin-bottom: 1px; font-size: 10.5px; color: var(--p-partial-text); }
.m-limit .m-fold .m-fold__pad { padding: 4px 0 0; border: 0; background: none; box-shadow: none; }

/* discuter : un complément, trois issues motivées */
.m-discuss { display: grid; }
.m-discuss__slot { padding: 12px 16px 14px; border: 1px dashed var(--cobalt-line); border-radius: var(--r-md); background: var(--white); font-size: 13.5px; line-height: 1.5; color: var(--ink-soft); }
.m-discuss__slot .small-label { margin-bottom: 3px; color: var(--cobalt); }
.m-discuss__out { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 36px; }
.m-discuss__out::before { content: ""; position: absolute; left: 50%; top: -36px; width: 1.5px; height: 18px; margin-left: -0.75px; background: var(--cobalt-line); transform-origin: top; }
.m-discuss__out::after { content: ""; position: absolute; top: -18px; left: calc((100% - 24px) / 6); right: calc((100% - 24px) / 6); height: 1.5px; background: var(--cobalt-line); }
.m-discuss__out li { position: relative; display: grid; justify-items: center; gap: 1px; padding: 12px 10px; border: 1px solid var(--border); border-radius: 12px; background: var(--white); box-shadow: var(--shadow-frag); text-align: center; }
.m-discuss__out li::before { content: ""; position: absolute; left: 50%; top: -19px; width: 1.5px; height: 18px; margin-left: -0.75px; background: var(--cobalt-line); transform-origin: top; }
.m-discuss__out strong { font-size: 14.5px; font-weight: 650; letter-spacing: -0.01em; }
.m-discuss__out span { font-size: 12.5px; color: var(--ink-faint); }

.m-trace-note { font-size: 12.5px; line-height: 1.5; color: var(--ink-faint); }

/* ---- Le point suivi */
.m-thread { display: grid; gap: 6px; }
.m-thread__point { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; font-size: 15px; line-height: 1.35; font-weight: 600; letter-spacing: -0.01em; }
.m-thread__point .small-label { color: var(--cobalt); }
.m-thread__state { display: grid; min-height: 22px; }
.m-swap { grid-area: 1 / 1; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; }
.m-ev { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; line-height: 1.3; font-weight: 600; }
.m-ev::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; flex-shrink: 0; }
.m-ev--declaration_only { color: var(--ink-soft); }
.m-ev--declaration_only::before { background: #9AA1AB; }
.m-ev--available_to_qualify { color: var(--p-partial-text); }
.m-ev--available_to_qualify::before { background: var(--p-partial); }
.m-ev--examined { color: var(--p-positive); }

/* ---- Le panneau : même fond que la scène de l'accueil, les objets y sont posés comme des fenêtres */
.m-step__fig, .m-seq.is-live .m-stage {
  --m-link: rgba(49, 87, 229, 0.5);
  --m-win: 0 0 0 1px rgba(17, 19, 24, 0.04), 0 22px 44px -24px rgba(17, 19, 24, 0.5);
  border-radius: 22px; background: #E8EDF5 url("/assets/img/accueil/fond-scene@2x.webp") center 30% / cover no-repeat; background-image: image-set(url("/assets/img/accueil/fond-scene.webp") 1x, url("/assets/img/accueil/fond-scene@2x.webp") 2x);
  box-shadow: 0 1px 2px rgba(17, 19, 24, 0.06), 0 40px 80px -48px rgba(17, 19, 24, 0.45);
}
/* le point suivi : un bandeau translucide en tête du panneau */
.m-step__fig .m-thread, .m-stage .m-thread { padding: 10px 14px 11px; border-radius: 12px; background: rgba(255, 255, 255, 0.84); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); box-shadow: 0 1px 2px rgba(17, 19, 24, 0.08), 0 16px 32px -20px rgba(17, 19, 24, 0.35); }
.m-step__fig .m-trace-note, .m-stage .m-trace-note { width: fit-content; max-width: 100%; padding: 8px 12px 9px; border-radius: 10px; background: rgba(255, 255, 255, 0.84); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); color: var(--ink-soft); }
.m-step__fig .m-discuss__slot, .m-stage .m-discuss__slot { box-shadow: var(--m-win); }
.m-step__fig .m-discuss__out li, .m-stage .m-discuss__out li { box-shadow: var(--m-win); }
.m-step__fig .m-discuss__out::before, .m-step__fig .m-discuss__out::after, .m-step__fig .m-discuss__out li::before,
.m-stage .m-discuss__out::before, .m-stage .m-discuss__out::after, .m-stage .m-discuss__out li::before { background: var(--m-link); }

/* ---- Figures fixes (écrans étroits, ou sans script) */
.m-step__fig { display: grid; gap: 16px; margin-top: 10px; padding: 20px; }
.m-fig__objs { display: grid; gap: 14px; }
.m-step__fig .m-o { position: relative; border-radius: var(--r-md); box-shadow: var(--m-win); }
.m-step__fig .m-o + .m-o::before { content: ""; position: absolute; left: 28px; top: -14px; width: 1.5px; height: 14px; background: var(--m-link); }
.m-step__fig .m-o--discuter, .m-step__fig .m-o--note { box-shadow: none; }
.m-step__fig .m-o--note::before { display: none; }

/* ---- Séquence animée : écran large, script actif (methode.js pose .is-live) */
.m-seq.is-live .m-seq__grid { grid-template-columns: minmax(0, 0.4fr) minmax(0, 0.6fr); column-gap: clamp(40px, 4.4vw, 72px); }
.m-seq.is-live .m-step { min-height: calc(88vh - var(--header-h)); align-content: center; padding-block: 40px; opacity: 0.28; transition: opacity 600ms var(--ease); }
.m-seq.is-live .m-step + .m-step { margin-top: 0; }
/* la dernière étape se lit scène encore fixe */
.m-seq.is-live .m-seq__text { padding-bottom: 14vh; }
.m-seq.is-live .m-step.is-current { opacity: 1; }
/* la figure fixe reste lisible par les lecteurs d'écran ; la scène (aria-hidden) la montre aux autres */
.m-seq.is-live .m-step { position: relative; }
.m-seq.is-live .m-step__fig { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.m-seq.is-live .m-seq__scene {
  position: sticky; top: calc(var(--header-h) + 16px); align-self: start;
  display: grid; grid-template-columns: 118px minmax(0, 1fr); column-gap: clamp(20px, 2.4vw, 36px);
  height: calc(100vh - var(--header-h) - 32px); height: calc(100svh - var(--header-h) - 32px);
}

/* frise : le point actif devient bleu, le trait avance d'une étape à l'autre ;
   sur écran moins large, seuls les numéros restent (l'intitulé est déjà dans la colonne de texte) */
@media (max-width: 1240px) {
  .m-seq.is-live .m-seq__scene { grid-template-columns: 40px minmax(0, 1fr); column-gap: 16px; }
  .m-seq.is-live .m-frise a { font-size: 0; }
  .m-seq.is-live .m-frise a .mono { font-size: 11px; }
}
.m-frise { position: relative; align-self: center; }
.m-frise ol { position: relative; display: grid; gap: 2px; }
.m-frise ol::before { content: ""; position: absolute; left: 4px; top: 18px; bottom: 18px; width: 1px; background: var(--border-strong); }
.m-frise__fill { position: absolute; left: 4px; top: 18px; bottom: 18px; width: 1.5px; margin-left: -0.25px; background: var(--cobalt); transform-origin: top; transform: scaleY(var(--p, 0)); transition: transform 900ms var(--ease); }
.m-frise a { position: relative; display: flex; align-items: baseline; gap: 8px; min-height: 36px; padding: 8px 0 8px 22px; font-size: 13.5px; line-height: 1.3; font-weight: 550; color: var(--ink-faint); transition: color 400ms var(--ease); }
.m-frise a::before { content: ""; position: absolute; z-index: 1; left: 0; top: 50%; width: 9px; height: 9px; margin-top: -4.5px; border-radius: 50%; background: var(--white); box-shadow: inset 0 0 0 1.5px var(--border-strong); transition: background-color 400ms var(--ease), box-shadow 400ms var(--ease); }
.m-frise a .mono { font-size: 11px; color: inherit; }
.m-frise a.is-done { color: var(--ink-soft); }
.m-frise a.is-done::before { box-shadow: inset 0 0 0 1.5px var(--cobalt); }
.m-frise a[aria-current="step"] { color: var(--ink); font-weight: 650; }
.m-frise a[aria-current="step"] .mono { color: var(--cobalt); }
.m-frise a[aria-current="step"]::before { background: var(--cobalt); box-shadow: 0 0 0 4px var(--cobalt-soft); }
.m-frise a:hover { color: var(--cobalt); }

/* scène : le panneau, le point suivi en tête, les objets au centre */
.m-stage { position: relative; display: flex; flex-direction: column; min-height: 0; overflow: hidden; padding: 16px clamp(12px, 1.5vw, 24px) 18px; }
.m-stage__objs { flex: 1; display: flex; flex-direction: column; justify-content: center; min-height: 0; padding-block: 14px 4px; }
.m-stage .m-thread { flex: none; }
.m-stage .m-swap { opacity: 0; transition: opacity 300ms var(--ease); }
.m-stage .m-swap.is-shown { opacity: 1; transition: opacity 520ms var(--ease) 380ms; }
.m-stage .m-show { display: inline-block; max-width: 0; overflow: hidden; vertical-align: bottom; opacity: 0; transition: max-width var(--m-t) var(--ease), opacity 400ms var(--ease); }
.m-stage .m-show.is-shown { max-width: 12em; opacity: 1; transition: max-width var(--m-t) var(--ease) 200ms, opacity 500ms var(--ease) 400ms; }

/* un objet entre, se replie ou sort : hauteur, marge et opacité, d'abord ce qui part */
.m-stage .m-o {
  position: relative; display: grid; grid-template-rows: 0fr; margin-top: 0; border-radius: var(--r-md);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: grid-template-rows var(--m-t) var(--ease), margin-top var(--m-t) var(--ease), opacity 360ms var(--ease),
    transform var(--m-t) var(--ease), box-shadow 500ms var(--ease), visibility 0s linear var(--m-t);
}
.m-stage .m-o.is-in {
  grid-template-rows: 1fr; margin-top: 14px; opacity: 1; visibility: visible; transform: none; box-shadow: var(--m-win);
  transition: grid-template-rows var(--m-t) var(--ease) 140ms, margin-top var(--m-t) var(--ease) 140ms, opacity 560ms var(--ease) 300ms,
    transform var(--m-t) var(--ease) 200ms, box-shadow 500ms var(--ease), visibility 0s;
}
.m-stage .m-o.is-in.is-first { margin-top: 0; }
.m-stage .m-o.is-in.is-dim { opacity: 0.62; }
.m-stage .m-o.is-on { box-shadow: 0 0 0 3px rgba(49, 87, 229, 0.28), var(--m-win); }
.m-stage .m-o.is-on .m-card { border-color: var(--cobalt-line); }
.m-stage .m-o--discuter.is-in, .m-stage .m-o--note.is-in { box-shadow: none; }
.m-o__clip { min-height: 0; overflow: hidden; border-radius: inherit; }
/* filet d'un objet au suivant, tracé après l'arrivée */
.m-stage .m-o::before { content: ""; position: absolute; left: 28px; bottom: 100%; width: 1.5px; height: 14px; background: var(--m-link); transform-origin: top; transform: scaleY(0); transition: transform 300ms var(--ease); }
.m-stage .m-o.is-in:not(.is-first)::before { transform: scaleY(1); transition: transform 560ms var(--ease) 700ms; }
.m-stage .m-o--note::before { display: none; }

.m-stage .m-fold { grid-template-rows: 0fr; opacity: 0; transition: grid-template-rows var(--m-t) var(--ease), opacity 300ms var(--ease); }
.m-stage .m-fold.is-open { grid-template-rows: 1fr; opacity: 1; transition: grid-template-rows var(--m-t) var(--ease) 140ms, opacity 560ms var(--ease) 380ms; }

/* qualifier : les critères s'examinent un à un, puis la qualification apparaît */
.m-stage .m-crit div { opacity: 0; transform: translateX(-6px); transition: opacity 300ms var(--ease), transform 300ms var(--ease); }
.m-stage .m-crit dt::before { background: var(--white); transition: background-color 300ms var(--ease); }
.m-stage .is-open .m-crit div { opacity: 1; transform: none; transition: opacity 460ms var(--ease) calc(620ms + var(--i) * 150ms), transform 460ms var(--ease) calc(620ms + var(--i) * 150ms); }
.m-stage .is-open .m-crit dt::before { background: var(--cobalt); transition: background-color 360ms var(--ease) calc(900ms + var(--i) * 150ms); }
.m-stage .m-o--qualif:not(.is-in) .m-verdict { opacity: 0; }
.m-stage .m-o--qualif.is-in .m-verdict { opacity: 1; transition: opacity 500ms var(--ease) 400ms; }
.m-stage[data-at="3"] .m-o--qualif.is-in .m-verdict { transition-delay: 1700ms; }

/* discuter : le trait descend du complément, se partage, rejoint les trois issues */
.m-stage .m-discuss__out::before { transform: scaleY(0); transition: transform 300ms var(--ease); }
.m-stage .m-discuss__out::after { transform: scaleX(0); transition: transform 300ms var(--ease); }
.m-stage .m-discuss__out li::before { transform: scaleY(0); transition: transform 300ms var(--ease); }
.m-stage .m-discuss__out li { opacity: 0; transform: translateY(6px); transition: opacity 300ms var(--ease), transform 300ms var(--ease); }
.m-stage .m-o--discuter.is-in .m-discuss__out::before { transform: none; transition: transform 420ms var(--ease) 900ms; }
.m-stage .m-o--discuter.is-in .m-discuss__out::after { transform: none; transition: transform 520ms var(--ease) 1200ms; }
.m-stage .m-o--discuter.is-in .m-discuss__out li::before { transform: none; transition: transform 380ms var(--ease) 1600ms; }
.m-stage .m-o--discuter.is-in .m-discuss__out li { opacity: 1; transform: none; transition: opacity 500ms var(--ease) calc(1750ms + var(--i) * 160ms), transform 500ms var(--ease) calc(1750ms + var(--i) * 160ms); }

/* premier affichage et changement de mode : pas de transition */
.m-seq.is-settling .m-stage *, .m-seq.is-settling .m-stage *::before, .m-seq.is-settling .m-stage *::after,
.m-seq.is-settling .m-step, .m-seq.is-settling .m-frise * { transition: none !important; }

/* fenêtres basses : scène plus dense (en dessous de 700 px de haut, les figures fixes prennent le relais) */
@media (max-height: 860px) {
  /* la pièce et sa qualification sont juste au-dessus du constat */
  .m-stage .m-rows__piece { display: none; }
  .m-stage .m-card .frag__head { padding-top: 9px; }
  .m-stage .m-card__body { padding: 4px 14px 10px; }
  .m-stage .m-fold__pad { padding-top: 6px; }
  .m-stage .m-limit .m-fold__pad { padding: 8px 14px 10px; }
  .m-stage .m-crit { gap: 4px; }
  .m-stage .m-rows { gap: 5px; }
  .m-stage .m-card .quote { margin-top: 6px; font-size: 13px; }
  .m-stage .m-card .t-finding__state { margin-top: 6px; }
  .m-stage { padding-top: 12px; padding-bottom: 12px; }
  .m-stage .m-thread { padding-block: 8px 9px; }
  .m-stage__objs { padding-block: 10px 0; }
  .m-stage .m-o.is-in { margin-top: 10px; }
  .m-stage .m-o::before { height: 10px; }
  .m-stage .m-discuss__out { margin-top: 30px; }
  .m-stage .m-discuss__out::before { top: -30px; height: 15px; }
  .m-stage .m-discuss__out::after { top: -15px; }
  .m-stage .m-discuss__out li::before { top: -16px; height: 15px; }
}
@media (max-height: 780px) {
  .m-stage .m-card { font-size: 13.5px; }
  .m-stage .m-rows div, .m-stage .m-crit div { font-size: 12.5px; }
  .m-stage .m-card .t-finding__title { font-size: 15px; }
  .m-stage .m-card__title, .m-stage .m-card .t-evidence__title { font-size: 14px; }
  .m-stage .m-card__line { font-size: 13px; }
  .m-stage .m-o.is-in { margin-top: 8px; }
  .m-stage .m-o::before { height: 8px; }
}
@media (max-height: 820px) {
  .m-stage .m-trace-note { display: none; }
}
@media (max-height: 730px) {
  .m-stage { padding: 10px 10px 10px; }
  .m-stage .m-thread { padding: 7px 12px 8px; gap: 3px; }
  .m-stage__objs { padding-top: 6px; }
  .m-stage .m-card .frag__head { padding-top: 7px; }
  .m-stage .m-card__body { padding-bottom: 8px; }
}

/* ------------------------------------------------------------ 3. Frontière */
.m-boundary__grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 32px clamp(40px, 6vw, 96px); align-items: start; }
.m-boundary .h2 { margin-top: 22px; max-width: 12em; }
.m-boundary__list { display: grid; gap: 4px; }
.m-boundary__list li { position: relative; padding: 8px 0 8px 28px; font-size: 17px; line-height: 1.45; letter-spacing: -0.01em; }
.m-boundary__list li::before { content: ""; position: absolute; left: 2px; top: 1.15em; width: 12px; height: 2px; border-radius: 1px; background: var(--cobalt); }
.m-boundary__legal { margin-top: 28px; padding-left: 16px; border-left: 2px solid var(--cobalt); max-width: 40em; font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem); line-height: 1.6; font-weight: 500; text-wrap: pretty; }

@media (prefers-reduced-motion: reduce) {
  .m-seq.is-live .m-step { opacity: 1; }
}

/* ------------------------------------------------------------ Responsive */
@media (max-width: 1100px) {
  .m-hero .hero__copy { padding-top: 0; }
  .m-index { justify-self: start; max-width: 640px; padding-top: 8px; }
  .m-boundary__grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 720px) {
  .m-index ol { gap: 8px; }
  .m-index__step { grid-template-columns: 24px minmax(0, 1fr); row-gap: 2px; min-height: 0; padding: 12px 16px; }
  .m-index__what { grid-column: 2; font-size: 13.5px; }
  .m-step + .m-step { margin-top: 72px; }
  .m-phases { grid-template-columns: minmax(0, 1fr); }
  .m-step__fig { padding: 14px; margin-inline: -6px; border-radius: 18px; }
  .m-crit div, .m-rows div { grid-template-columns: minmax(0, 1fr); row-gap: 1px; }
  .m-cells { grid-template-columns: minmax(0, 1fr); }
  .m-discuss__out { gap: 8px; }
  .m-discuss__out li { padding: 10px 6px; }
  .m-discuss__out strong { font-size: 13.5px; }
  .m-boundary__list li { font-size: 16px; }
}

/* la méthode en une phrase, en langage courant */
.m-plain { margin-top: 14px; max-width: 32em; font-size: 15.5px; line-height: 1.55; color: var(--ink); text-wrap: pretty; }
.m-plain strong { font-weight: 650; }

.m-hero .lede { max-width: 32em; }

/* Trois états définis, puis le raisonnement du fil : attendu, établi, non couvert, conclusion, réexamen */
.m-states { display: grid; gap: 10px; margin-top: 10px; }
.m-states > div { display: grid; gap: 4px; }
.m-states dd { font-size: 14.5px; line-height: 1.55; color: var(--ink-soft); }
.m-reason { display: grid; margin-top: 10px; border-top: 1px solid var(--border); }
.m-reason > div { display: grid; grid-template-columns: minmax(0, 0.34fr) minmax(0, 0.66fr); gap: 4px 14px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.m-reason dt { font-size: 13px; font-weight: 600; color: var(--ink); }
.m-reason dd { font-size: 14.5px; line-height: 1.55; color: var(--ink-soft); }
.m-reason dd .state { margin-right: 6px; }
@media (max-width: 720px) { .m-reason > div { grid-template-columns: minmax(0, 1fr); } }

/* Déroulement d'une mission (repositionnement du 29 septembre), distinct des six étapes. */
.m-mission { padding-block: clamp(56px, 6vw, 96px); border-top: 1px solid var(--border); }
.m-mission__list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px clamp(20px, 3vw, 40px); margin-top: clamp(32px, 4vw, 48px); counter-reset: none; }
.m-mission__list li { display: grid; align-content: start; gap: 8px; padding-top: 16px; border-top: 1.5px solid var(--ink); }
.m-mission__list li:first-child { border-top-color: var(--cobalt); }
.m-mission__list .mono { font-size: 12px; font-weight: 600; color: var(--cobalt); }
.m-mission__list p { font-size: 16px; line-height: 1.55; color: var(--ink-soft); text-wrap: pretty; }
.m-mission__list b { display: block; margin-bottom: 2px; font-size: 18px; font-weight: 620; letter-spacing: -0.012em; color: var(--ink); }
@media (max-width: 1000px) { .m-mission__list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .m-mission__list { grid-template-columns: minmax(0, 1fr); } }