/* ═══════════════════════════════════════════════════════════════════════
   SCROLER — Page « Intelligence artificielle »
   ───────────────────────────────────────────────────────────────────────
   Suppose base.css puis page.css chargés avant.

   Même pièce que les autres pages : sol nocturne, lumière orange, verre.
   Le vocabulaire propre à cette page est celui de l'atelier : le nœud,
   le fil, le flux, l'établi. L'automatisation se voit — des fils qui
   transportent quelque chose entre des boîtes qui font un travail.

   Aucune animation ne porte d'information : le flux est doublé par une
   liste ordonnée d'étapes, lisible sans JavaScript et sans mouvement.
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --ia-fil-dir: 90deg;            /* sens des fils : bascule à 180° en colonne */
  --ia-vert: #3CCF8E;             /* le vert ne sert qu'aux états « ça tourne » */
}

/* ═══════════════════════════════════════════════════════════════════════
   1. HERO — la console
   ═══════════════════════════════════════════════════════════════════════ */
.ia-hero {
  position: relative;
  min-height: calc(100svh - 66px);
  display: flex;
  align-items: center;
  padding-block: clamp(52px, 6.5vw, 88px);
  overflow: hidden;
}
.ia-torche {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(520px circle at var(--tx, 50%) var(--ty, 40%),
    rgba(233,78,26,.24) 0%, rgba(233,78,26,.08) 38%, transparent 72%);
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity .6s ease;
}
.ia-hero:hover .ia-torche { opacity: 1; }

/* Trame de fond : une grille d'atelier, très discrète. */
.ia-grille {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(233,78,26,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233,78,26,.055) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(ellipse 80% 65% at 50% 42%, #000 20%, transparent 78%);
          mask-image: radial-gradient(ellipse 80% 65% at 50% 42%, #000 20%, transparent 78%);
}

.ia-hero .scr-wrap { max-width: 1320px; }
.ia-hero__inner { position: relative; z-index: 2; width: 100%; }

.ia-hero h1 {
  margin: 0 0 26px;
  font-size: clamp(26px, 5vw, 72px);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -.032em;
  color: var(--scr-paper);
}
.ia-hero h1 .ia-l { display: block; overflow: hidden; }
.ia-hero h1 .ia-l > span { display: block; }
.js .ia-hero h1 .ia-l > span {
  transform: translateY(108%);
  animation: iaMonte 1.05s var(--scr-ease) forwards;
}
.js .ia-hero h1 .ia-l:nth-child(2) > span { animation-delay: .13s; }
@keyframes iaMonte { to { transform: translateY(0); } }

.ia-hero h1 em {
  font-style: normal;
  color: var(--scr-orange);
  text-shadow: 0 0 38px rgba(233,78,26,.55), 0 0 90px rgba(233,78,26,.25);
}

.js .ia-hero .scr-lede,
.js .ia-hero__actions,
.js .ia-preuve { opacity: 0; animation: iaApparait .9s ease .45s forwards; }
.js .ia-hero__actions { animation-delay: .58s; }
.js .ia-preuve { animation-delay: .7s; }
@keyframes iaApparait { to { opacity: 1; } }

.ia-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.ia-preuve {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  margin: clamp(32px, 4vw, 50px) 0 0;
  padding-top: 26px;
  border-top: 1px solid var(--scr-bord);
  font-family: var(--scr-mono);
  font-size: 12px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: rgba(242,239,234,.66);
}
.ia-preuve span { display: inline-flex; align-items: center; gap: 13px; }
.ia-preuve span::before {
  content: "";
  flex: 0 0 auto;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--scr-orange);
  box-shadow: 0 0 9px rgba(233,78,26,.9);
}
.ia-preuve b { font-weight: 500; color: var(--scr-paper); }

.ia-descendre {
  position: absolute;
  left: 50%; bottom: 26px;
  z-index: 2;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  font-family: var(--scr-mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  /* .55 = 5,6:1 sur la nuit — meme valeur que communication.css.
     .44 ne donnait que 3,97:1 pour du mono 10 px.                    */
  color: rgba(242,239,234,.55);
  pointer-events: none;
}
.ia-descendre i {
  display: block;
  width: 1px; height: 36px;
  background: linear-gradient(to bottom, transparent, var(--scr-orange));
}
.js .ia-descendre i { animation: iaDesc 2.1s ease-in-out infinite; transform-origin: 50% 0; }
@keyframes iaDesc { 0%,100% { transform: scaleY(.35); opacity: .4; } 50% { transform: scaleY(1); opacity: 1; } }
@media (max-height: 820px), (max-width: 860px) { .ia-descendre { display: none; } }

/* ═══════════════════════════════════════════════════════════════════════
   2. RELANCES
   ═══════════════════════════════════════════════════════════════════════ */
.ia-relance {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 30px;
  margin-top: clamp(40px, 5vw, 66px);
  padding: 30px 34px;
  border: 1px solid var(--scr-bord);
  border-left: 2px solid var(--scr-orange);
  border-radius: 4px 20px 20px 4px;
  background: var(--scr-verre-1);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.ia-relance p { margin: 0; font-size: 17px; line-height: 1.65; color: var(--scr-on-night-soft); }
.ia-relance p b { font-weight: 400; color: var(--scr-paper); }
/* flex-shrink 1 : sur un écran très étroit, le libellé passe à la
   ligne au lieu de déborder du gabarit (1 px suffit à créer un
   défilement horizontal).                                              */
.ia-relance .scr-btn { flex: 0 1 auto; min-width: 0; }

/* ═══════════════════════════════════════════════════════════════════════
   3. CE QUE L'IA CHANGE — quatre rôles
   ═══════════════════════════════════════════════════════════════════════ */
.ia-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--scr-bord);
  border-radius: 20px;
  overflow: hidden;
}
@media (min-width: 720px)  { .ia-roles { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width: 1040px) { .ia-roles { grid-template-columns: repeat(4, minmax(0,1fr)); } }
.ia-role {
  position: relative;
  padding: clamp(26px, 2.8vw, 38px);
  background: #1B1512;
  transition: background-color .35s ease;
}
.ia-role:hover { background: #221A15; }
.ia-role h3 { margin: 0 0 10px; font-size: 19px; font-weight: 300; color: var(--scr-paper); }
.ia-role p { margin: 0; font-size: 15.5px; line-height: 1.6; color: var(--scr-on-night-soft); }
.ia-role::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--scr-orange);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform .7s var(--scr-ease);
}
.ia-role.is-in::before { transform: scaleY(1); }
.ia-role.is-in:nth-child(2)::before { transition-delay: .1s; }
.ia-role.is-in:nth-child(3)::before { transition-delay: .2s; }
.ia-role.is-in:nth-child(4)::before { transition-delay: .3s; }

/* ═══════════════════════════════════════════════════════════════════════
   4. L'ATELIER — le flux qui tourne
   ───────────────────────────────────────────────────────────────────────
   La chaîne est faite d'éléments HTML, pas d'un SVG : elle se replie donc
   toute seule en colonne sur petit écran, et chaque nœud reste du texte
   sélectionnable. Les fils sont des dégradés répétés dont la position
   s'anime — c'est ce qui donne le sentiment que quelque chose circule,
   pour trois lignes de CSS et zéro JavaScript.

   La liste ordonnée `.ia-etapes` porte la même information en clair :
   c'est elle que lit un lecteur d'écran, la chaîne est décorative.
   ═══════════════════════════════════════════════════════════════════════ */
.ia-scenarios { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: clamp(26px, 3vw, 38px); }
.ia-scenario {
  min-height: 44px;
  padding: 11px 20px;
  border: 1px solid var(--scr-bord);
  border-radius: 999px;
  background: transparent;
  color: var(--scr-on-night-soft);
  font-family: var(--scr-mono);
  font-size: 11.5px;
  letter-spacing: .11em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform .3s var(--scr-ease), border-color .3s ease, color .3s ease, background-color .3s ease;
}
.ia-scenario:hover { transform: translateY(-2px); border-color: var(--scr-orange); color: var(--scr-paper); }
.ia-scenario[aria-selected="true"] {
  background: var(--scr-orange-d);
  border-color: var(--scr-orange-d);
  color: #fff;
}

.ia-flux[hidden] { display: none; }
.js .ia-flux.is-swap { animation: iaBascule .5s var(--scr-ease); transform-origin: 0 50%; }
@keyframes iaBascule {
  from { opacity: 0; transform: translateX(-10px); }
  to   { opacity: 1; transform: none; }
}

.ia-etabli {
  position: relative;
  padding: clamp(24px, 3vw, 42px) clamp(18px, 2.6vw, 38px);
  border: 1px solid var(--scr-bord);
  border-radius: 24px;
  background: linear-gradient(170deg, var(--scr-verre-2), rgba(23,18,15,.65));
  overflow: hidden;
}
.ia-etabli::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(242,239,234,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242,239,234,.028) 1px, transparent 1px);
  background-size: 26px 26px;
}
.ia-etabli > * { position: relative; }

.ia-etabli__tete {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  margin-bottom: 26px;
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(242,239,234,.6);
}
.ia-etabli__tete b { color: var(--scr-paper); font-weight: 500; }
.ia-etabli__tete .ia-vivant { display: inline-flex; align-items: center; gap: 8px; color: var(--ia-vert); }
.ia-etabli__tete .ia-vivant::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 10px currentColor;
}
.js .ia-etabli__tete .ia-vivant::before { animation: iaBattement 1.8s ease-in-out infinite; }
@keyframes iaBattement { 50% { opacity: .25; box-shadow: none; } }

/* ─── La chaîne ───────────────────────────────────────────────────────── */
.ia-chaine {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: stretch;
  gap: 0;
}
@media (max-width: 900px) {
  :root { --ia-fil-dir: 180deg; }
  .ia-chaine { flex-direction: column; }
}

.ia-noeud {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 16px;
  border: 1px solid var(--scr-bord);
  border-radius: 16px;
  background: rgba(23,18,15,.72);
  transition: border-color .5s ease, box-shadow .5s ease, transform .5s var(--scr-ease);
}
.ia-noeud:hover {
  border-color: var(--scr-bord-vif);
  transform: translateY(-3px);
  box-shadow: 0 22px 50px -32px rgba(233,78,26,.7);
}
.ia-noeud__type {
  font-family: var(--scr-mono);
  font-size: 9.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--scr-orange);
}
.ia-noeud__ic {
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border: 1px solid rgba(233,78,26,.4);
  border-radius: 10px;
  color: var(--scr-orange);
}
.ia-noeud__ic svg { width: 17px; height: 17px; }
.ia-noeud h4 {
  margin: 0;
  font-size: 15.5px;
  font-weight: 400;
  line-height: 1.3;
  color: var(--scr-paper);
}
.ia-noeud p { margin: 0; font-size: 15px; line-height: 1.6; color: var(--scr-on-night-mute); }
.ia-noeud p.ia-noeud__outil {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid rgba(242,239,234,.08);
  font-family: var(--scr-mono);
  font-size: 9.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(242,239,234,.6);
}

/* Le nœud « IA » se distingue : c'est le seul qui décide de quelque chose */
.ia-noeud--ia { border-color: rgba(233,78,26,.45); background: rgba(233,78,26,.06); }
.ia-noeud--ia .ia-noeud__ic { background: rgba(233,78,26,.14); }
/* Sur ce fond teinté d'orange, le vif #E94E1A retombe à 3,9:1 : le
   libellé passe au #FF7A4D déjà présent dans la page (5,7:1).         */
.ia-noeud--ia .ia-noeud__type { color: #FF7A4D; }

/* ─── Le fil ──────────────────────────────────────────────────────────── */
.ia-fil {
  flex: 0 0 auto;
  align-self: center;
  width: 46px; height: 2px;
  margin: 0 -1px;
  background-image: repeating-linear-gradient(var(--ia-fil-dir),
    var(--scr-orange) 0 7px, rgba(233,78,26,.12) 7px 17px);
  background-size: 17px 17px;
}
@media (max-width: 900px) {
  .ia-fil { width: 2px; height: 34px; margin: -1px 0; }
}
.js .ia-fil { animation: iaFlux 1.1s linear infinite; }
@keyframes iaFlux { to { background-position: 17px 17px; } }
.ia-flux.is-arret .ia-fil { animation-play-state: paused; }

/* Commande d'arrêt du flux — WCAG 2.2.2 */
.ia-arret {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  margin-top: 22px;
  padding: 10px 18px;
  border: 1px solid var(--scr-bord);
  border-radius: 999px;
  background: transparent;
  color: var(--scr-on-night-soft);
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color .3s ease, color .3s ease;
}
.ia-arret:hover { border-color: var(--scr-orange); color: var(--scr-paper); }

/* ─── Les étapes en clair ─────────────────────────────────────────────── */
.ia-etapes {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0 0 0 22px;
  display: grid;
  gap: 12px;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--scr-on-night-soft);
}
.ia-etapes li::marker { color: var(--scr-orange); font-family: var(--scr-mono); font-size: 12px; }
.ia-etapes b { font-weight: 400; color: var(--scr-paper); }

.ia-gain {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--scr-bord);
  font-family: var(--scr-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(242,239,234,.6);
}
.ia-gain b { color: var(--scr-orange); font-weight: 500; }

/* ═══════════════════════════════════════════════════════════════════════
   5. LA PILE — les outils, et ce qu'ils valent
   ═══════════════════════════════════════════════════════════════════════ */
.ia-pile {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--scr-bord);
  border: 1px solid var(--scr-bord);
  border-radius: 20px;
  overflow: hidden;
}
@media (min-width: 700px)  { .ia-pile { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width: 1080px) { .ia-pile { grid-template-columns: repeat(3, minmax(0,1fr)); } }

.ia-outil {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(24px, 2.6vw, 34px);
  background: #1B1512;
  transition: background-color .35s ease;
}
.ia-outil:hover { background: #221A15; }
.ia-outil__haut { display: flex; align-items: center; gap: 13px; }
.ia-outil__marque {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 40px; height: 40px;
  border: 1px solid rgba(242,239,234,.18);
  border-radius: 11px;
  color: var(--scr-orange);
}
.ia-outil__marque svg { width: 19px; height: 19px; }
.ia-outil h3 { margin: 0; font-size: 19px; font-weight: 300; color: var(--scr-paper); }
.ia-outil__role {
  font-family: var(--scr-mono);
  font-size: 9.5px;
  letter-spacing: .1em;      /* .14em faisait passer le role sur deux lignes */
  text-transform: uppercase;
  color: rgba(242,239,234,.6);
}
.ia-outil p { margin: 0; font-size: 15px; line-height: 1.6; color: var(--scr-on-night-soft); }
.ia-outil p.ia-outil__limite {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid rgba(242,239,234,.08);
  font-size: 15px;
  color: var(--scr-on-night-mute);
}
.ia-outil__limite b { font-weight: 400; color: var(--scr-paper); }

.ia-souverain {
  margin-top: clamp(26px, 3vw, 40px);
  padding: 22px 26px;
  border: 1px solid var(--scr-bord);
  border-left: 2px solid var(--ia-vert);
  border-radius: 4px 18px 18px 4px;
  background: rgba(60,207,142,.05);
  font-size: 16px;
  line-height: 1.62;
  color: var(--scr-on-night-soft);
}
.ia-souverain b { font-weight: 400; color: var(--scr-paper); }

/* ═══════════════════════════════════════════════════════════════════════
   6. LES MODULES — le catalogue
   ═══════════════════════════════════════════════════════════════════════ */
.ia-modules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 1.6vw, 20px);
  grid-template-columns: 1fr;
}
@media (min-width: 620px)  { .ia-modules { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width: 1040px) { .ia-modules { grid-template-columns: repeat(3, minmax(0,1fr)); } }

.ia-module {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 2.2vw, 30px);
  border: 1px solid var(--scr-bord);
  border-radius: 20px;
  background: linear-gradient(160deg, var(--scr-verre-2), rgba(23,18,15,.5));
  overflow: hidden;
  transition: border-color .35s ease, transform .5s var(--scr-ease), box-shadow .5s ease;
}
.ia-module:hover {
  border-color: var(--scr-bord-vif);
  transform: translateY(-4px);
  box-shadow: 0 26px 60px -34px rgba(233,78,26,.6);
}
/* Reflet spéculaire : une lumière holographique suit le pointeur sur la
   carte — --mx/--my sont posées par inclinaison(), aucun écouteur en
   plus. Sans JS ni survol, le reflet n'existe pas.                     */
.ia-module::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity .45s ease;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%),
    rgba(233,78,26,.16), rgba(255,154,60,.05) 45%, transparent 70%);
  mix-blend-mode: screen;
}
.ia-module:hover::after { opacity: 1; }
.ia-module__num {
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  color: rgba(242,239,234,.45);
}
.ia-module h3 { margin: 0; font-size: 19px; font-weight: 300; color: var(--scr-paper); }
.ia-module p { margin: 0; font-size: 15px; line-height: 1.6; color: var(--scr-on-night-soft); }
.ia-module p.ia-module__pour {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid rgba(242,239,234,.08);
  font-family: var(--scr-mono);
  font-size: 10px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--scr-orange);
}

/* ═══════════════════════════════════════════════════════════════════════
   7. LE CALCUL DE TEMPS
   ───────────────────────────────────────────────────────────────────────
   Un outil, pas une promesse : ce sont les chiffres du visiteur, saisis
   par lui, multipliés entre eux. Rien n'est extrapolé, rien n'est
   comparé à une moyenne du marché.
   ═══════════════════════════════════════════════════════════════════════ */
.ia-calc {
  display: grid;
  gap: clamp(24px, 3vw, 44px);
  align-items: start;
  padding: clamp(26px, 3.4vw, 48px);
  border: 1px solid var(--scr-bord);
  border-radius: 24px;
  background: linear-gradient(170deg, var(--scr-verre-2), rgba(23,18,15,.7));
}
@media (min-width: 940px) { .ia-calc { grid-template-columns: 1.15fr 1fr; } }

.ia-calc__champs { display: grid; gap: 18px; }
@media (min-width: 560px) { .ia-calc__champs { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.ia-calc__champ { display: grid; gap: 7px; }
.ia-calc__champ label {
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: rgba(242,239,234,.68);
}
.ia-calc__champ input {
  width: 100%;
  min-height: 50px;
  padding: 13px 16px;
  border: 1px solid rgba(242,239,234,.16);
  border-radius: 12px;
  background: rgba(23,18,15,.55);
  color: var(--scr-paper);
  font-family: var(--scr-mono);
  font-size: 17px;
  font-variant-numeric: tabular-nums;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.ia-calc__champ input:focus { box-shadow: 0 0 0 4px rgba(233,78,26,.16); }
/* Sur toute la largeur : sinon l'aide se glisse dans la deuxieme colonne,
   a cote du troisieme champ, et on la lit comme son etiquette.      */
.ia-calc__aide { grid-column: 1 / -1; font-size: 13.5px; line-height: 1.55; color: var(--scr-on-night-mute); }

.ia-resultat {
  padding: clamp(22px, 2.6vw, 32px);
  border: 1px solid rgba(233,78,26,.4);
  border-radius: 18px;
  background: rgba(233,78,26,.07);
  text-align: center;
}
.ia-resultat__label {
  margin: 0 0 10px;
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(242,239,234,.6);
}
.ia-resultat__nombre {
  display: block;
  font-size: clamp(46px, 7vw, 82px);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--scr-orange);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 44px rgba(233,78,26,.45);
}
.ia-resultat__unite {
  display: block;
  margin-top: 8px;
  font-family: var(--scr-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(242,239,234,.7);
}
.ia-resultat__equiv {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(233,78,26,.25);
  font-size: 15px;
  line-height: 1.6;
  color: var(--scr-on-night-soft);
}
.ia-resultat__equiv b { font-weight: 400; color: var(--scr-paper); }
.ia-resultat .scr-btn { margin-top: 20px; }

.ia-calc__note {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--scr-bord);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--scr-on-night-mute);
}

/* ═══════════════════════════════════════════════════════════════════════
   8. SERVICE CLIENT — la conversation encadrée
   ═══════════════════════════════════════════════════════════════════════ */
.ia-sav { display: grid; gap: clamp(28px, 4vw, 60px); align-items: center; }
@media (min-width: 940px) { .ia-sav { grid-template-columns: 1fr 380px; } }

.ia-fenetre {
  border: 1px solid var(--scr-bord);
  border-radius: 20px;
  background: rgba(23,18,15,.8);
  overflow: hidden;
  box-shadow: 0 40px 90px -50px rgba(233,78,26,.6);
}
.ia-fenetre__barre {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--scr-bord);
  background: rgba(242,239,234,.04);
  font-family: var(--scr-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(242,239,234,.55);
}
.ia-fenetre__barre i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(242,239,234,.22);
}
.ia-fenetre__barre i:first-child { background: var(--scr-orange); }
.ia-fenetre__corps { display: grid; gap: 12px; padding: 20px; }

.ia-bulle {
  max-width: 84%;
  padding: 13px 17px;
  border-radius: 16px;
  font-size: 15px;
  line-height: 1.6;
}
.ia-bulle--client {
  justify-self: start;
  border-bottom-left-radius: 5px;
  background: rgba(242,239,234,.07);
  color: var(--scr-on-night-soft);
}
.ia-bulle--robot {
  justify-self: end;
  border-bottom-right-radius: 5px;
  background: rgba(233,78,26,.13);
  border: 1px solid rgba(233,78,26,.3);
  color: var(--scr-paper);
}
.ia-bulle--passage {
  justify-self: stretch;
  max-width: none;
  border: 1px dashed rgba(60,207,142,.5);
  background: rgba(60,207,142,.06);
  font-family: var(--scr-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ia-vert);
  text-align: center;
}
.js .ia-bulle { opacity: 0; transform: translateY(10px); }
.js .ia-fenetre.is-in .ia-bulle {
  opacity: 1;
  transform: none;
  transition: opacity .55s ease, transform .6s var(--scr-ease);
}
.js .ia-fenetre.is-in .ia-bulle:nth-child(2) { transition-delay: .35s; }
.js .ia-fenetre.is-in .ia-bulle:nth-child(3) { transition-delay: .7s; }
.js .ia-fenetre.is-in .ia-bulle:nth-child(4) { transition-delay: 1.05s; }
.js .ia-fenetre.is-in .ia-bulle:nth-child(5) { transition-delay: 1.4s; }

.ia-sav__liste { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 11px; }
.ia-sav__liste li {
  position: relative;
  padding-left: 26px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--scr-on-night-soft);
}
.ia-sav__liste li::before {
  content: "";
  position: absolute;
  left: 0; top: .62em;
  width: 11px; height: 1px;
  background: var(--scr-orange);
}

/* ═══════════════════════════════════════════════════════════════════════
   9. LA MÉTHODE — l'accompagnement
   ═══════════════════════════════════════════════════════════════════════ */
.ia-methode { list-style: none; margin: 0; padding: 0; position: relative; }
.ia-methode::before {
  content: "";
  position: absolute;
  left: 17px; top: 8px; bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--scr-orange), rgba(233,78,26,.08));
}
.ia-etape { position: relative; padding: 0 0 clamp(34px, 4vw, 58px) 58px; }
.ia-etape:last-child { padding-bottom: 0; }
.ia-etape__n {
  position: absolute;
  left: 0; top: 0;
  display: grid;
  place-items: center;
  width: 35px; height: 35px;
  border: 1px solid var(--scr-bord);
  border-radius: 50%;
  background: var(--scr-night);
  font-family: var(--scr-mono);
  font-size: 12px;
  color: rgba(242,239,234,.6);
  transition: border-color .5s ease, color .5s ease, box-shadow .5s ease;
}
.ia-etape.is-in .ia-etape__n {
  border-color: var(--scr-orange);
  color: var(--scr-orange);
  box-shadow: 0 0 22px rgba(233,78,26,.4);
}
.ia-etape h3 { margin: 4px 0 8px; font-size: 21px; font-weight: 300; color: var(--scr-paper); }
.ia-etape p { margin: 0; font-size: 16.5px; line-height: 1.66; color: var(--scr-on-night-soft); }
.ia-etape p.ia-etape__meta {
  margin: 0 0 8px;
  font-family: var(--scr-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--scr-orange);
}

/* ═══════════════════════════════════════════════════════════════════════
   10. LES GARDE-FOUS
   ───────────────────────────────────────────────────────────────────────
   La section la plus importante de la page. Elle dit ce que nous ne
   ferons pas. C'est elle qui rend crédible tout le reste.
   ═══════════════════════════════════════════════════════════════════════ */
.ia-gardefous {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 1.6vw, 20px);
}
@media (min-width: 780px) { .ia-gardefous { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.ia-gardefou {
  display: flex;
  gap: 16px;
  padding: clamp(22px, 2.4vw, 30px);
  border: 1px solid var(--scr-bord);
  border-radius: 18px;
  background: rgba(23,18,15,.5);
}
.ia-gardefou__ic {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border: 1px solid rgba(242,239,234,.2);
  border-radius: 11px;
  color: rgba(242,239,234,.7);
}
.ia-gardefou__ic svg { width: 18px; height: 18px; }
.ia-gardefou h3 { margin: 0 0 6px; font-size: 17.5px; font-weight: 300; color: var(--scr-paper); }
.ia-gardefou p { margin: 0; font-size: 15px; line-height: 1.6; color: var(--scr-on-night-soft); }

.ia-avertissement {
  margin-top: clamp(26px, 3vw, 40px);
  padding: 18px 22px;
  border-left: 2px solid rgba(242,239,234,.28);
  font-size: 15.5px;
  line-height: 1.62;
  color: var(--scr-on-night-mute);
}

/* ═══════════════════════════════════════════════════════════════════════
   11. LE COÛT — la structure, pas le montant
   ═══════════════════════════════════════════════════════════════════════ */
.ia-couts {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--scr-bord);
  border: 1px solid var(--scr-bord);
  border-radius: 20px;
  overflow: hidden;
}
.ia-cout {
  display: grid;
  gap: 8px 26px;
  padding: clamp(20px, 2.2vw, 28px) clamp(22px, 2.4vw, 32px);
  background: #1B1512;
  transition: background-color .3s ease;
}
@media (min-width: 780px) { .ia-cout { grid-template-columns: 250px 1fr; align-items: baseline; } }
.ia-cout:hover { background: #221A15; }
.ia-cout dt {
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--scr-orange);
}
.ia-cout dd { margin: 0; font-size: 15.5px; line-height: 1.62; color: var(--scr-on-night-soft); }
.ia-cout dd b { display: block; margin-bottom: 4px; font-weight: 400; color: var(--scr-paper); }

/* ═══════════════════════════════════════════════════════════════════════
   12. LE DEVIS — un formulaire par type de besoin
   ═══════════════════════════════════════════════════════════════════════ */
.ia-devis__cadre {
  position: relative;
  padding: clamp(26px, 3.6vw, 54px);
  border: 1px solid var(--scr-bord);
  border-radius: 24px;
  background: linear-gradient(170deg, var(--scr-verre-2), rgba(23,18,15,.72));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
}
.ia-devis__cadre::before {
  content: "";
  position: absolute;
  left: 50%; top: -180px;
  width: 620px; height: 420px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(233,78,26,.20), transparent 68%);
  pointer-events: none;
}
.ia-devis__cadre > * { position: relative; }

.ia-pas {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 26px;
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(242,239,234,.6);
}
/* #FF7A4D et non le vif : sous le halo du cadre (rgba orange .20),
   #E94E1A retombe à 3,3:1 — l'orange clair y tient 4,8:1.            */
.ia-pas b { color: #FF7A4D; font-weight: 500; }
.ia-pas i { flex: 1 1 auto; height: 1px; background: rgba(242,239,234,.14); }

.ia-champs { display: grid; gap: 18px; }
@media (min-width: 720px) { .ia-champs--2 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.ia-champs--espace { margin-top: 20px; }

.ia-champ { display: grid; gap: 7px; }
.ia-champ > label {
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(242,239,234,.68);
}
.ia-oblig { color: var(--scr-orange); }
.ia-champ input,
.ia-champ select,
.ia-champ textarea {
  width: 100%;
  min-height: 50px;
  padding: 13px 16px;
  border: 1px solid rgba(242,239,234,.16);
  border-radius: 12px;
  background: rgba(23,18,15,.55);
  color: var(--scr-paper);
  font-family: var(--scr-font);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.5;
  transition: border-color .3s ease, background-color .3s ease, box-shadow .3s ease;
}
.ia-champ textarea { min-height: 138px; resize: vertical; }
.ia-champ select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 44px;
  background-image: linear-gradient(45deg, transparent 50%, rgba(242,239,234,.6) 50%),
                    linear-gradient(135deg, rgba(242,239,234,.6) 50%, transparent 50%);
  background-position: calc(100% - 22px) 22px, calc(100% - 16px) 22px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
/* .48 = 4,5:1 sur la nuit, comme communication.css — .32 tombait a 2,65:1. */
.ia-champ input::placeholder,
.ia-champ textarea::placeholder { color: rgba(242,239,234,.48); }
.ia-champ input:hover,
.ia-champ select:hover,
.ia-champ textarea:hover { border-color: rgba(242,239,234,.3); }
.ia-champ input:focus,
.ia-champ select:focus,
.ia-champ textarea:focus { background: rgba(23,18,15,.8); box-shadow: 0 0 0 4px rgba(233,78,26,.16); }
.ia-champ__aide { font-size: 13.5px; line-height: 1.55; color: var(--scr-on-night-mute); }

.ia-champ input[aria-invalid="true"],
.ia-champ select[aria-invalid="true"],
.ia-champ textarea[aria-invalid="true"] { border-color: #FF7A4D; }
.ia-erreur {
  display: none;
  align-items: center;
  gap: 7px;
  font-size: 13.5px;
  color: #FFA98B;
}
.ia-erreur::before { content: "▲"; font-size: 9px; }
.ia-champ.is-erreur .ia-erreur { display: flex; }

.ia-besoins { margin: 0 0 30px; padding: 0; border: 0; }
.ia-besoins > legend {
  padding: 0;
  margin-bottom: 14px;
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(242,239,234,.68);
}
.ia-besoins__liste { display: flex; flex-wrap: wrap; gap: 9px; }
.ia-besoin { position: relative; }
.ia-besoin input {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden;
  clip-path: inset(50%);
}
.ia-besoin label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 46px;
  padding: 11px 20px;
  border: 1px solid var(--scr-bord);
  border-radius: 999px;
  font-family: var(--scr-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--scr-on-night-soft);
  cursor: pointer;
  transition: transform .3s var(--scr-ease), border-color .3s ease, color .3s ease, background-color .3s ease;
}
.ia-besoin label::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  border: 1px solid currentColor;
  transition: background-color .3s ease, box-shadow .3s ease;
}
.ia-besoin label:hover { transform: translateY(-2px); border-color: var(--scr-orange); color: var(--scr-paper); }
.ia-besoin input:checked + label {
  border-color: var(--scr-orange);
  background: rgba(233,78,26,.14);
  color: var(--scr-paper);
}
.ia-besoin input:checked + label::before { background: var(--scr-orange); box-shadow: 0 0 10px rgba(233,78,26,.9); }
.ia-besoin input:focus-visible + label { outline: 3px solid var(--scr-orange); outline-offset: 3px; }

.ia-panneau {
  margin: 0 0 26px;
  padding: clamp(20px, 2.4vw, 30px);
  border: 1px solid var(--scr-bord);
  border-left: 2px solid var(--scr-orange);
  border-radius: 4px 18px 18px 4px;
  background: rgba(23,18,15,.45);
}
.ia-panneau[hidden] { display: none; }
.ia-panneau--commun { border-left-color: rgba(242,239,234,.2); }
.js .ia-panneau.is-swap { animation: iaBascule .5s var(--scr-ease); transform-origin: 0 50%; }
.ia-panneau > legend {
  margin: 0 0 6px;
  padding: 0;
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--scr-orange);
}
.ia-panneau__phrase { margin: 0 0 18px; font-size: 15.5px; line-height: 1.6; color: var(--scr-on-night-soft); }

.ia-cases { display: flex; flex-wrap: wrap; gap: 9px; }
.ia-case { position: relative; }
.ia-case input {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden;
  clip-path: inset(50%);
}
.ia-case label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 10px 17px;
  border: 1px solid rgba(242,239,234,.16);
  border-radius: 12px;
  font-size: 14.5px;
  color: var(--scr-on-night-soft);
  cursor: pointer;
  transition: border-color .3s ease, color .3s ease, background-color .3s ease;
}
.ia-case label::before {
  content: "";
  width: 15px; height: 15px;
  border: 1px solid rgba(242,239,234,.4);
  border-radius: 4px;
  transition: background-color .25s ease, border-color .25s ease;
}
.ia-case label:hover { border-color: rgba(233,78,26,.55); color: var(--scr-paper); }
.ia-case input:checked + label {
  border-color: var(--scr-orange);
  background: rgba(233,78,26,.12);
  color: var(--scr-paper);
}
.ia-case input:checked + label::before {
  background: var(--scr-orange);
  border-color: var(--scr-orange);
  box-shadow: inset 0 0 0 2px rgba(23,18,15,.8);
}
.ia-case input:focus-visible + label { outline: 3px solid var(--scr-orange); outline-offset: 3px; }

.ia-consentement {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 4px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--scr-on-night-soft);
}
.ia-consentement input { flex: 0 0 auto; width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--scr-orange); }
.ia-consentement a { color: var(--scr-orange); }

.ia-miel { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.ia-envoi {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 26px;
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid var(--scr-bord);
}
.ia-envoi__rassure {
  margin: 0;
  font-family: var(--scr-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(242,239,234,.55);
}

.ia-bilan {
  margin: 0 0 22px;
  padding: 16px 20px;
  border: 1px solid rgba(255,122,77,.5);
  border-radius: 12px;
  background: rgba(255,122,77,.08);
  font-size: 15px;
  line-height: 1.6;
  color: #FFC3AC;
}
.ia-bilan[hidden] { display: none; }
.ia-bilan ul { margin: 8px 0 0; padding-left: 20px; }
.ia-bilan a { color: inherit; }

/* ═══════════════════════════════════════════════════════════════════════
   13. FAQ, APPEL FINAL, BARRE COLLANTE
   ═══════════════════════════════════════════════════════════════════════ */
.ia-faq { border-top: 1px solid var(--scr-bord); }
.ia-faq details { border-bottom: 1px solid var(--scr-bord); }
.ia-faq summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 46px 24px 0;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 300;
  color: var(--scr-paper);
  cursor: pointer;
  list-style: none;
  transition: color .3s ease;
}
.ia-faq summary::-webkit-details-marker { display: none; }
.ia-faq summary:hover { color: var(--scr-orange); }
.ia-faq summary:focus-visible { outline: 3px solid var(--scr-orange); outline-offset: -3px; border-radius: 6px; }
.ia-faq summary::after {
  content: "";
  position: absolute;
  right: 6px; top: 50%;
  width: 9px; height: 9px;
  border-right: 1.5px solid var(--scr-orange);
  border-bottom: 1.5px solid var(--scr-orange);
  transform: rotate(45deg) translateY(-50%);
  transform-origin: 50% 0;
  transition: transform .35s var(--scr-ease);
}
.ia-faq details[open] summary::after { transform: rotate(225deg) translate(-3px, -3px); }
.ia-faq__rep {
  margin: 0;
  padding: 0 46px 24px 0;
  font-size: 16.5px;
  line-height: 1.68;
  color: var(--scr-on-night-soft);
}
.ia-faq__rep + .ia-faq__rep { padding-top: 0; margin-top: -12px; }

.ia-cta { text-align: center; }
.ia-cta h2 { max-width: 900px; margin-inline: auto; font-size: clamp(26px, 3.6vw, 50px); }
.ia-cta .scr-lede { max-width: 78ch; margin-inline: auto; text-align: center; }
.ia-cta__actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 38px; }

/* Le sélecteur est doublé (.ia-page) pour l'emporter sur la règle
   .scr-nuit > *:not(.scr-salle) de page.css (spécificité 0-2-0), qui
   sinon ramène la barre en position: relative dans le flux.            */
.ia-page .ia-barre {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 55;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px clamp(14px, 4vw, 24px);
  background: rgba(23,18,15,.92);
  border-top: 1px solid var(--scr-bord);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transform: translateY(110%);
  visibility: hidden;
  transition: transform .45s var(--scr-ease), visibility 0s linear .45s;
}
.ia-page .ia-barre.is-la { transform: none; visibility: visible; transition-delay: 0s, 0s; }
.ia-barre p {
  margin: 0;
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(242,239,234,.6);
}
.ia-barre .scr-btn { padding: 11px 20px; min-height: 44px; }
/* Ouverte partout dès que le script a la main : la logique existante
   (visible entre le hero et #devis) reste la seule à la piloter.       */
.js .ia-barre { display: flex; }
/* Cachée, elle ne doit intercepter aucun clic ni aucun focus. */
.ia-page .ia-barre { pointer-events: none; }
.ia-page .ia-barre.is-la { pointer-events: auto; }

/* Au bureau : une pastille compacte ancrée en bas à droite, au lieu du
   bandeau pleine largeur — elle ne couvre jamais la lecture.           */
@media (min-width: 861px) {
  .ia-page .ia-barre {
    left: auto;
    right: 24px;
    bottom: 24px;
    width: auto;
    border: 1px solid var(--scr-bord);
    border-radius: 999px;
    padding: 10px 12px 10px 24px;
    gap: 18px;
    transform: translateY(12px);
    opacity: 0;
    transition: transform .45s var(--scr-ease), opacity .45s ease,
                visibility 0s linear .45s;
  }
  .ia-page .ia-barre.is-la { transform: none; opacity: 1; transition-delay: 0s, 0s, 0s; }
}

/* ═══════════════════════════════════════════════════════════════════════
   14. CONSTELLATION — la scène WebGL du hero
   ───────────────────────────────────────────────────────────────────────
   Construite par intelligence-artificielle-constellation.js entre la
   grille (z 0) et le contenu (z 2). Sans JS ou sans WebGL : vide.
   ═══════════════════════════════════════════════════════════════════════ */
.ia-constellation {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.ia-constellation canvas { width: 100%; height: 100%; }

/* Commande d'arrêt du décor — WCAG 2.2.2, même famille que .ia-arret. */
.ia-decor {
  position: absolute;
  right: clamp(16px, 3vw, 30px);
  bottom: 18px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--scr-bord);
  border-radius: 999px;
  background: rgba(23,18,15,.55);
  color: var(--scr-on-night-soft);
  font-family: var(--scr-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color .3s ease, color .3s ease;
}
.ia-decor:hover { border-color: var(--scr-orange); color: var(--scr-paper); }
/* Sur petit écran le contenu du hero descend jusqu'au bouton : on
   réserve sa hauteur (44px + marge) pour que la dernière ligne des
   repères ne passe jamais dessous.                                     */
@media (max-width: 860px) {
  .ia-hero { padding-bottom: 96px; }
}

/* ═══════════════════════════════════════════════════════════════════════
   15. LE CÂBLAGE DE L'ATELIER — courbes et impulsions
   ───────────────────────────────────────────────────────────────────────
   Le canvas remplace visuellement les fils pointillés ; les .ia-fil
   restent dans le DOM (repli sans canvas + squelette de mise en page),
   simplement rendus invisibles quand le câblage est en place.
   ═══════════════════════════════════════════════════════════════════════ */
.ia-etabli .ia-cablage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.js .ia-chaine--cable .ia-fil { opacity: 0; animation: none; }

/* Le nœud s'illumine au passage de l'impulsion. */
.ia-noeud.is-pulse {
  border-color: var(--scr-bord-vif);
  box-shadow: 0 0 34px -10px rgba(233,78,26,.8);
}
.is-pulse .ia-noeud__ic { background: rgba(233,78,26,.22); }

/* ═══════════════════════════════════════════════════════════════════════
   16. CALCULATEUR — halo et empilement des journées
   ───────────────────────────────────────────────────────────────────────
   Les barrettes ne visualisent QUE le N déjà énoncé dans la phrase
   « Soit environ N journées » : aucune donnée nouvelle.
   ═══════════════════════════════════════════════════════════════════════ */
.ia-journees {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
  margin-top: 14px;
}
.ia-journees i {
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: var(--scr-orange);
  transform: scaleY(0);
  transform-origin: 50% 100%;
  transition: transform .5s var(--scr-ease);
}
.ia-journees.is-la i { transform: none; }
.ia-journees span {
  align-self: center;
  margin-left: 6px;
  font-family: var(--scr-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: rgba(242,239,234,.6);
}

.ia-resultat { transition: box-shadow .6s ease; }
.ia-resultat.is-chaud { box-shadow: 0 0 60px -24px rgba(233,78,26,.55); }

/* ═══════════════════════════════════════════════════════════════════════
   17. FENÊTRE SAV — la frappe simulée
   ───────────────────────────────────────────────────────────────────────
   Sous .ia-fenetre--joue, c'est le script qui révèle chaque bulle : les
   délais en cascade du mode simple ne s'appliquent plus. Le texte
   intégral reste dans un span .scr-sr, lu immédiatement.
   ═══════════════════════════════════════════════════════════════════════ */
.ia-bulle__tape { white-space: pre-wrap; }

.ia-curseur {
  display: inline-block;
  width: 2px;
  height: 14px;
  margin-left: 2px;
  vertical-align: -2px;
  background: var(--scr-orange);
  animation: iaClignote 1s steps(1, end) infinite;
}
@keyframes iaClignote { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.js .ia-fenetre.ia-fenetre--joue .ia-bulle {
  opacity: 0;
  transform: translateY(10px);
  transition: none;
}
.js .ia-fenetre.ia-fenetre--joue .ia-bulle.is-vue {
  opacity: 1;
  transform: none;
  transition: opacity .45s ease, transform .5s var(--scr-ease);
}

/* ═══════════════════════════════════════════════════════════════════════
   18. STEPPER DU DEVIS — le thermomètre s'allume
   ───────────────────────────────────────────────────────────────────────
   Sans JS, le fil reste tel qu'aujourd'hui (tout orange) ; avec, il part
   éteint et s'allume au fil du parcours — progression monotone.
   ═══════════════════════════════════════════════════════════════════════ */
.js .ia-pas b {
  color: rgba(242,239,234,.6);
  transition: color .45s ease, text-shadow .45s ease;
}
.js .ia-pas b.is-fait,
.js .ia-pas b.is-actif {
  color: #FF7A4D;               /* même raison que .ia-pas b : le halo */
  text-shadow: 0 0 14px rgba(233,78,26,.5);
}
.ia-pas i { position: relative; overflow: hidden; }
.ia-pas i::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--scr-orange);
  box-shadow: 0 0 8px rgba(233,78,26,.6);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .6s var(--scr-ease);
}
.ia-pas i.is-fait::after { transform: scaleX(1); }

/* La pastille de devis ne doit jamais recouvrir un champ focalisé. */
html { scroll-padding-bottom: 80px; }

/* ═══════════════════════════════════════════════════════════════════════
   19. FAISCEAUX DE SECTION — le trait d'eyebrow se dessine
   ───────────────────────────────────────────────────────────────────────
   Surcharges locales du ::before de page.css, portée limitée à cette
   page via .ia-page posé sur <body>. Sans JS, .is-in n'existe pas :
   l'état replié est donc préfixé .js — le dessin reste, plein.
   ═══════════════════════════════════════════════════════════════════════ */
.js .ia-page .scr-section__head .scr-eyebrow::before {
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .9s var(--scr-ease);
}
.js .ia-page .scr-section__head.is-in .scr-eyebrow::before { transform: scaleX(1); }

/* ─── LE CADRE DES TITRES ────────────────────────────────────────────
   La constellation du hero et le sol de la salle passaient DANS les
   mots : des lignes traversaient les titres, qui semblaient posés sur
   le décor au lieu d'y appartenir. Chaque titre reçoit donc son cadre —
   une dalle de verre qui floute ce qui passe derrière elle. Le décor
   continue de vivre, mais derrière une vitre, et le texte redevient net.

   Le cadre se déplie à l'arrivée dans le champ (.is-in, posé par
   l'observateur de intelligence-artificielle.js). Sans JS, il est
   simplement là, ouvert.                                             */
.ia-page .scr-section__head {
  position: relative;
  padding: clamp(24px, 2.6vw, 38px) clamp(22px, 2.8vw, 44px);
  border: 1px solid var(--scr-bord);
  border-radius: 22px;
  background: linear-gradient(158deg, rgba(31,24,20,.80), rgba(20,16,13,.90));
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  box-shadow: 0 26px 70px -46px rgba(0,0,0,.9);
}

/* Le faisceau de l'eyebrow devient l'ACCENT du cadre : un trait vif
   collé au bord gauche, dans la gouttière du cadre lui-même — il ne
   déborde plus du gabarit, donc plus besoin de le masquer en dessous
   de 1240 px.                                                        */
.ia-page .scr-section__head::after {
  content: "";
  position: absolute;
  left: -1px;
  top: clamp(24px, 2.6vw, 38px);
  width: 2px;
  height: 46px;
  border-radius: 2px;
  background: linear-gradient(to bottom, var(--scr-orange), transparent);
}
.js .ia-page .scr-section__head::after {
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform .8s var(--scr-ease) .2s;
}
.js .ia-page .scr-section__head.is-in::after { transform: none; }

/* Le dépliement : le cadre monte d'un cran et s'ouvre. */
.js .ia-page .scr-section__head {
  opacity: 0;
  transform: translateY(14px) scale(.985);
  transition: opacity .7s ease, transform .8s var(--scr-ease);
}
.js .ia-page .scr-section__head.is-in { opacity: 1; transform: none; }

/* Le hero : même dalle, autour du bloc de texte. C'est là que la
   constellation gênait le plus.                                      */
.ia-hero__inner > .scr-eyebrow,
.ia-hero__inner > h1,
.ia-hero__inner > .scr-lede,
.ia-hero__inner > .ia-hero__actions,
.ia-hero__inner > .ia-preuve { position: relative; z-index: 1; }

.ia-hero__inner::before {
  content: "";
  position: absolute;
  inset: clamp(-22px, -2.4vw, -34px) clamp(-20px, -2.6vw, -40px);
  z-index: 0;
  border: 1px solid var(--scr-bord);
  border-radius: 26px;
  background: linear-gradient(158deg, rgba(31,24,20,.86), rgba(20,16,13,.93));
  backdrop-filter: blur(16px) saturate(120%);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  box-shadow: 0 34px 90px -54px rgba(0,0,0,.95);
  pointer-events: none;
}
.js .ia-hero__inner::before {
  opacity: 0;
  animation: iaCadre 1s var(--scr-ease) .28s forwards;
}
@keyframes iaCadre { from { opacity: 0; transform: scale(.99); } to { opacity: 1; transform: none; } }

/* ═══════════════════════════════════════════════════════════════════════
   Préférences système
   ═══════════════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  .js .ia-hero h1 .ia-l > span { transform: none; animation: none; }
  .js .ia-hero .scr-lede, .js .ia-hero__actions, .js .ia-preuve { opacity: 1; animation: none; }
  .js .ia-descendre i, .js .ia-etabli__tete .ia-vivant::before { animation: none; }
  .ia-torche { display: none; }
  /* Le fil garde ses pointillés : c'est le MOUVEMENT qu'on retire, pas
     le dessin. On voit toujours qu'il y a un fil entre deux nœuds.  */
  .js .ia-fil { animation: none; }
  .ia-module::after { display: none; }
  .ia-module:hover, .ia-noeud:hover { transform: none; }
  .js .ia-panneau.is-swap, .js .ia-flux.is-swap { animation: none; }
  .js .ia-bulle { opacity: 1; transform: none; }
  .js .ia-fenetre.is-in .ia-bulle { transition: none; }
  .ia-page .ia-barre { transition: none; }
  /* Si le mode s'active en cours de frappe, le script montre tout ;
     ces règles garantissent le même état côté dessin.               */
  .js .ia-fenetre.ia-fenetre--joue .ia-bulle { opacity: 1; transform: none; transition: none; }
  .ia-curseur { animation: none; }
  .ia-journees i { transform: none; transition: none; }
  .ia-resultat { transition: none; }
  .ia-pas i::after, .js .ia-pas b { transition: none; }
  .js .ia-page .scr-section__head .scr-eyebrow::before { transform: none; transition: none; }
  .js .ia-page .scr-section__head::after { transform: none; transition: none; }
  /* Le cadre reste : c'est du dessin, pas du mouvement. */
  .js .ia-page .scr-section__head { opacity: 1; transform: none; transition: none; }
  .js .ia-hero__inner::before { opacity: 1; animation: none; }
}

@media (forced-colors: active) {
  .ia-torche, .ia-grille, .ia-etabli::before, .ia-devis__cadre::before,
  .ia-constellation, .ia-cablage, .ia-journees, .ia-curseur,
  .ia-page .scr-section__head::after { display: none; }
  .js .ia-chaine--cable .ia-fil { opacity: 1; }
  .ia-decor { border: 1px solid ButtonText; }
  .ia-fil { background: ButtonText; }
  .ia-besoin input:checked + label,
  .ia-case input:checked + label,
  .ia-scenario[aria-selected="true"] { border: 3px solid ButtonText; }
}

@media print {
  .ia-hero { min-height: 0; }
  .ia-torche, .ia-grille, .ia-descendre, .ia-page .ia-barre, .ia-scenarios, .ia-arret,
  .ia-constellation, .ia-decor, .ia-cablage, .ia-journees, .ia-curseur,
  .ia-page .scr-section__head::after { display: none; }
  .js .ia-chaine--cable .ia-fil { opacity: 1; }
  .ia-chaine { flex-direction: column; }
  .ia-fil { display: none; }
  .ia-etabli, .ia-module, .ia-noeud, .ia-calc, .ia-devis__cadre { background: #fff; color: #000; border-color: #999; }
  .ia-module h3, .ia-noeud h4, .ia-etape h3, .ia-outil h3 { color: #000; }
  .ia-module p, .ia-noeud p, .ia-etape p, .ia-role p, .ia-outil p { color: #222; }
  .ia-resultat__nombre { color: #000; text-shadow: none; }
}