/* Page d'accueil d'acrealab.com. Theme clair unique : c'est une vitrine, et
   les visuels (captures, photo de realite augmentee) sont clairs. */
:root {
  --fond: #fbfbf9;
  --fond-teinte: #f1f5f3;
  --carte: #ffffff;
  --encre: #15191c;
  --texte: #3b444c;
  --doux: #66707a;
  --trait: #e3e8e6;
  --accent: #4eac9e;
  --accent-fonce: #2b7f73;
  --accent-pale: #e3f3ef;
  --sombre: #0f1513;
  --rayon: 18px;
  --ombre: 0 1px 2px rgba(16, 24, 22, .05), 0 12px 32px -12px rgba(16, 24, 22, .18);
  --police: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--fond); color: var(--texte);
  font: 16px/1.6 var(--police); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
/* « height: auto » : les images portent leurs attributs width et height (pour
   reserver la place au chargement). Sans cette regle, la hauteur de
   l'attribut s'appliquait telle quelle a une image retrecie — la photo de
   realite augmentee sortait ecrasee. */
img, video, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--accent-fonce); }
h1, h2, h3 { color: var(--encre); line-height: 1.15; margin: 0; letter-spacing: -.02em; }
h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 700; max-width: 20ch; }
h3 { font-size: 18px; font-weight: 650; letter-spacing: -.01em; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.enveloppe { width: min(1180px, 100% - 40px); margin-inline: auto; }
.enveloppe-etroite { width: min(820px, 100% - 40px); }
.ico { width: 20px; height: 20px; flex: none; }

/* ── Boutons ─────────────────────────────────────────────────────────── */
.bouton {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: 12px; border: 1.5px solid transparent;
  font-weight: 650; font-size: 15px; text-decoration: none; white-space: nowrap;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.bouton:hover { transform: translateY(-1px); }
.bouton-plein { background: var(--encre); color: #fff; box-shadow: 0 8px 20px -10px rgba(15, 21, 19, .6); }
.bouton-plein:hover { background: #000; }
.bouton-contour { border-color: var(--trait); color: var(--encre); background: var(--carte); }
.bouton-contour:hover { border-color: var(--encre); }
.bouton-texte { color: var(--encre); padding-inline: 8px; }
.bouton-texte:hover { color: var(--accent-fonce); }
.bouton-clair { background: #fff; color: var(--encre); }
.bouton-grand { padding: 15px 26px; font-size: 16px; border-radius: 14px; }
.bouton-petit { padding: 9px 15px; font-size: 14px; border-radius: 10px; }
.ico-pas { width: 18px; height: 18px; transition: transform .15s ease; }
.bouton:hover .ico-pas { transform: translateX(3px); }

/* ── En-tete ─────────────────────────────────────────────────────────── */
.entete {
  position: sticky; top: 0; z-index: 20;
  background: rgba(251, 251, 249, .82); backdrop-filter: saturate(1.6) blur(14px);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid rgba(227, 232, 230, .8);
}
.entete-ligne { display: flex; align-items: center; gap: 28px; height: 68px; }
.marque { display: inline-flex; align-items: center; gap: 10px; color: var(--encre); text-decoration: none; font-weight: 750; letter-spacing: -.01em; }
.marque-ico { width: 26px; height: 26px; color: var(--accent); }
.nav { display: flex; gap: 26px; margin-right: auto; }
.nav a, .lien-discret { color: var(--texte); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover, .lien-discret:hover { color: var(--encre); }
.entete-actions { display: flex; align-items: center; gap: 18px; }
details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }
.langues { position: relative; }
.langues summary { font-size: 13px; font-weight: 650; color: var(--doux); padding: 6px 8px; border-radius: 8px; letter-spacing: .04em; }
.langues summary:hover { color: var(--encre); background: var(--fond-teinte); }
.langues-liste, .menu-mobile-liste {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 170px; padding: 6px;
  background: var(--carte); border: 1px solid var(--trait); border-radius: 12px; box-shadow: var(--ombre);
  display: grid;
}
.langues-liste a, .menu-mobile-liste a { padding: 9px 12px; border-radius: 8px; color: var(--encre); text-decoration: none; font-size: 15px; }
.langues-liste a:hover, .menu-mobile-liste a:hover { background: var(--fond-teinte); }
.langues-liste a[aria-current] { color: var(--accent-fonce); font-weight: 650; }
.menu-mobile { display: none; position: relative; }
.menu-mobile summary { display: grid; gap: 4px; padding: 10px 8px; }
.menu-mobile summary span { display: block; width: 20px; height: 2px; background: var(--encre); border-radius: 2px; }

/* ── Hero ────────────────────────────────────────────────────────────── */
.hero { position: relative; padding: 72px 0 40px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto 35%; height: 900px; z-index: -1;
  background: radial-gradient(closest-side, rgba(78, 172, 158, .22), rgba(78, 172, 158, 0));
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -2; opacity: .55;
  background-image: linear-gradient(var(--trait) 1px, transparent 1px), linear-gradient(90deg, var(--trait) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at 30% 20%, #000 10%, transparent 65%);
  mask-image: radial-gradient(ellipse at 30% 20%, #000 10%, transparent 65%);
}
.hero-grille { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.formats {
  display: inline-block; font-size: 13px; font-weight: 650; letter-spacing: .06em; color: var(--accent-fonce);
  background: var(--accent-pale); border: 1px solid rgba(78, 172, 158, .28); padding: 6px 12px; border-radius: 999px;
}
.hero h1 { font-size: clamp(38px, 5vw, 62px); font-weight: 780; margin: 22px 0 22px; letter-spacing: -.035em; line-height: 1.02; }
.hero h1 em { font-style: normal; color: var(--accent-fonce); }
.chapeau { font-size: clamp(17px, 1.6vw, 19px); max-width: 34em; color: var(--texte); }
.hero-boutons { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 32px; }
.hero-note { margin-top: 14px; font-size: 14px; color: var(--doux); }

.hero-demo { position: relative; }
.cadre { background: var(--carte); border: 1px solid var(--trait); border-radius: 20px; box-shadow: 0 30px 70px -30px rgba(16, 40, 34, .45), 0 2px 6px rgba(16, 24, 22, .06); overflow: hidden; }
.cadre-barre { display: flex; align-items: center; gap: 7px; padding: 12px 14px; border-bottom: 1px solid var(--trait); background: #f7f8f7; }
.cadre-barre span { width: 11px; height: 11px; border-radius: 50%; background: #dfe4e2; }
.cadre-barre code { margin-left: 10px; font: 12.5px/1 ui-monospace, "SF Mono", Consolas, monospace; color: var(--doux); background: #fff; border: 1px solid var(--trait); padding: 6px 10px; border-radius: 8px; flex: 1; }
.cadre-vue { position: relative; aspect-ratio: 4 / 3; background: #747474; }
.cadre-poster, .cadre-vue iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.cadre-poster { object-fit: cover; }
/* Sous le cadre : l'aide a gauche, le QR code a droite. Pose sur le modele,
   le QR masquait le bouton « Mesurer » du viewer. */
.demo-pied { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 16px; }
.demo-aide { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--doux); }
.demo-aide .ico { width: 18px; height: 18px; color: var(--accent-fonce); }
.qr-carte {
  flex: none; width: 270px; display: flex; gap: 12px; align-items: center;
  padding: 10px 12px; background: var(--carte); border: 1px solid var(--trait); border-radius: 16px; box-shadow: var(--ombre);
}
.qr { width: 76px; flex: none; }
.qr svg { width: 100%; height: auto; }
.qr-carte p { font-size: 13px; line-height: 1.45; color: var(--texte); }

.preuves { list-style: none; padding: 0; margin: 56px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 24px; }
.preuves li { display: flex; align-items: center; gap: 10px; font-size: 14.5px; font-weight: 700; color: var(--encre); }
.preuves .ico { color: var(--accent-fonce); }
/* Six atouts strictement identiques : meme pastille, meme trait, meme gras.
   Deux icones pleines parmi quatre au trait, puis deux textes plus gras que
   les autres, rompaient l'ensemble (retours de l'auteur, 27/09/2026). */
.preuves .ico { width: 30px; height: 30px; padding: 6px; border-radius: 9px; background: var(--accent-pale); stroke-width: 1.8; }

/* ── Exemples charges a la demande ───────────────────────────────────── */
.exemples { margin-top: 44px; display: grid; grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr); gap: 20px; align-items: stretch; }
.scene { position: relative; aspect-ratio: 1114 / 768; border-radius: 22px; overflow: hidden; background: #747474; border: 1px solid var(--trait); box-shadow: 0 30px 70px -34px rgba(16, 40, 34, .45); }
.scene-affiche { position: absolute; inset: 0; display: none; }
.scene-affiche.visible { display: block; }
.scene-affiche img { width: 100%; height: 100%; object-fit: cover; }
.scene-charger { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); box-shadow: 0 16px 40px -12px rgba(0, 0, 0, .55); }
.scene-charger:hover { transform: translate(-50%, calc(-50% - 1px)); }
.scene-charger .ico { width: 20px; height: 20px; }
.scene iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.scene[data-charge="oui"] .scene-charger { display: none; }
/* min-width: 0 : sans lui, la bande d'exemples (qui defile sur telephone)
   refusait de retrecir sous la largeur de son contenu et elargissait la page
   de 11 px en allemand, a 390 px. */
.exemples > * { min-width: 0; }
.exemples-liste { display: grid; gap: 10px; align-content: start; }
.exemple { display: grid; gap: 3px; padding: 16px 18px; border: 1.5px solid var(--trait); border-radius: 16px; background: var(--carte); text-decoration: none; transition: border-color .15s ease, box-shadow .15s ease; }
.exemple:hover { border-color: var(--doux); }
.exemple.choisi { border-color: var(--accent); box-shadow: 0 10px 26px -18px rgba(43, 127, 115, .8); }
.exemple-metier { font-size: 12px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-fonce); }
.exemple-texte { font-size: 15px; font-weight: 600; color: var(--encre); line-height: 1.4; }
.exemple-unite { display: inline-flex; align-items: center; gap: 6px; justify-self: start; margin-top: 5px; padding: 3px 9px 3px 7px; border-radius: 999px; background: var(--fond-teinte); font-size: 12.5px; font-weight: 600; color: var(--texte); }
.exemple-unite .ico { width: 14px; height: 14px; color: var(--accent-fonce); }
.exemple.choisi .exemple-unite { background: var(--accent-pale); }
.exemple-plein { justify-self: start; margin-top: 4px; font-size: 14px; font-weight: 600; text-decoration: none; }

/* ── Sections ────────────────────────────────────────────────────────── */
.section { padding: 104px 0; scroll-margin-top: 68px; }
.section-teinte { background: var(--fond-teinte); }
.surtitre { font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent-fonce); margin-bottom: 14px; }
.intro { margin-top: 16px; font-size: 18px; color: var(--doux); max-width: 40em; }

.etapes { list-style: none; padding: 0; margin: 48px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: etape; }
.etape { position: relative; padding: 28px; background: var(--carte); border: 1px solid var(--trait); border-radius: var(--rayon); }
.etape-num { position: absolute; top: 22px; right: 24px; font-size: 44px; font-weight: 800; color: var(--accent-pale); line-height: 1; }
.etape-ico { width: 28px; height: 28px; color: var(--accent-fonce); margin-bottom: 18px; }
.etape p { margin-top: 10px; }
.video { margin-top: 28px; }
.video summary { display: inline-flex; align-items: center; gap: 10px; font-weight: 650; color: var(--encre); padding: 10px 16px; border: 1.5px solid var(--trait); border-radius: 12px; background: var(--carte); }
.video summary::before { content: ""; width: 0; height: 0; border-left: 10px solid var(--accent-fonce); border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.video summary:hover { border-color: var(--encre); }
.video video { margin-top: 18px; width: 100%; border-radius: var(--rayon); background: #000; box-shadow: var(--ombre); }

.metiers { margin-top: 48px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.metier { background: var(--carte); border: 1px solid var(--trait); border-radius: 22px; overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .2s ease, transform .2s ease; }
.metier:hover { box-shadow: var(--ombre); transform: translateY(-2px); }
.metier-visuel { aspect-ratio: 1114 / 768; background: #eef1f0; overflow: hidden; display: grid; place-items: center; }
.metier-visuel img { width: 100%; height: 100%; object-fit: cover; }
.metier-corps { padding: 26px 28px 28px; }
.metier-corps > p { margin-top: 10px; }
/* Telechargement de l'extension SketchUp : etape 1 et carte Architectes. */
.extension { display: grid; justify-items: start; gap: 6px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--trait); }
.extension .bouton .ico { width: 18px; height: 18px; }
/* Le bouton peut passer sur deux lignes : « SketchUp-Erweiterung
   herunterladen » debordait d'une carte d'etape a 390 px. */
.extension .bouton { white-space: normal; text-align: left; max-width: 100%; }
.extension-details { font-size: 13px; color: var(--doux); }
.extension-alt { font-size: 13.5px; font-weight: 600; text-decoration: none; }
.extension-alt:hover { text-decoration: underline; }
.ar-note { display: flex; gap: 10px; align-items: flex-start; margin: -12px 0 28px; padding: 12px 14px; border-radius: 12px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); font-size: 14.5px; line-height: 1.5; color: #c9d3cf; }
.ar-note .ico { color: #7fd0c3; margin-top: 1px; }
.metier-essayer { display: inline-flex; align-items: center; gap: 6px; margin-top: 20px; font-weight: 650; font-size: 15px; text-decoration: none; }
.metier-essayer:hover .ico-pas { transform: translateX(3px); }
.coches { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 9px; }
.coches li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--encre); }
.coche { width: 18px; height: 18px; margin-top: 3px; color: var(--accent-fonce); stroke-width: 2.4; }
.etages { width: 78%; height: auto; }
.etages .etiquette { font: 600 15px var(--police); fill: var(--texte); }
.metier:hover .d0 { transform: translate(0, -14px); }
.dalle { transition: transform .35s ease; }

/* ── Realite augmentee ───────────────────────────────────────────────── */
.section-sombre { background: var(--sombre); color: #c9d3cf; }
.section-sombre h2 { color: #fff; }
.section-sombre .surtitre { color: #7fd0c3; }
.ar-grille { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 64px; align-items: center; }
.ar-visuel { margin: 0; position: relative; }
.ar-visuel img, .ar-video { width: 100%; border-radius: 22px; box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7); }
.ar-video { display: none; aspect-ratio: auto; background: #000; }
.ar-visuel.lecture .ar-video { display: block; }
.ar-visuel.lecture .ar-image { display: none; }
.ar-visuel figcaption { margin-top: 14px; font-size: 13.5px; color: #8fa19b; }
.ar-texte p { margin: 22px 0 30px; font-size: 18px; }
.section-sombre .bouton-plein { background: #fff; color: var(--encre); }

/* ── Formats acceptes ────────────────────────────────────────────────── */
.formats-grille { margin-top: 44px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.format { padding: 24px 22px; background: var(--carte); border: 1px solid var(--trait); border-radius: 18px; display: flex; flex-direction: column; gap: 10px; }
.format h3 { font-size: 20px; display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 10px; }
.format-ext { font: 600 12.5px ui-monospace, "SF Mono", Consolas, monospace; color: var(--accent-fonce); letter-spacing: 0; }
.format p { font-size: 14.5px; color: var(--doux); }
.format .format-logiciels { margin-top: auto; padding-top: 12px; border-top: 1px solid var(--trait); font-size: 13.5px; line-height: 1.7; color: var(--texte); }
.format-logiciels span { display: block; font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--doux); }
.format-logiciels b { font-weight: 650; color: var(--encre); }
.formats-marques { margin-top: 18px; font-size: 12.5px; color: var(--doux); }

/* ── Fonctionnalites ─────────────────────────────────────────────────── */
.fonctions { list-style: none; padding: 0; margin: 48px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--trait); border: 1px solid var(--trait); border-radius: 22px; overflow: hidden; }
.fonction { background: var(--carte); padding: 28px 26px; }
.fonction-ico { width: 26px; height: 26px; color: var(--accent-fonce); margin-bottom: 16px; }
.fonction h3 { font-size: 17px; }
.fonction p { margin-top: 8px; font-size: 15px; color: var(--doux); }
.pastille { display: inline-block; vertical-align: middle; margin-left: 4px; font-size: 11px; font-weight: 650; letter-spacing: .02em; color: var(--accent-fonce); background: var(--accent-pale); padding: 2px 8px; border-radius: 999px; }

/* ── Tarifs ──────────────────────────────────────────────────────────── */
.ancre { position: relative; top: -104px; }
.periodes { display: inline-flex; gap: 4px; padding: 5px; margin-top: 32px; background: var(--carte); border: 1px solid var(--trait); border-radius: 999px; }
.periodes[hidden] { display: none; }
.periode { border: 0; background: none; padding: 9px 18px; border-radius: 999px; font: 650 14px var(--police); color: var(--doux); cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.periode.choisie { background: var(--encre); color: #fff; }
.cadeau { font-size: 11.5px; padding: 2px 8px; border-radius: 999px; background: var(--accent-pale); color: var(--accent-fonce); }
.periode.choisie .cadeau { background: rgba(255, 255, 255, .16); color: #fff; }
.offres { margin-top: 28px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; align-items: stretch; }
.offre { position: relative; display: flex; flex-direction: column; padding: 26px 22px 22px; background: var(--carte); border: 1px solid var(--trait); border-radius: 20px; }
.offre.populaire { border: 2px solid var(--accent); box-shadow: 0 24px 50px -28px rgba(43, 127, 115, .55); }
.offre-etiquette { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--accent-fonce); color: #fff; font-size: 11px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; white-space: nowrap; }
.offre-nom { font-size: 22px; font-weight: 700; }
.offre-prix { margin-top: 14px; font-size: 34px; font-weight: 750; color: var(--encre); letter-spacing: -.03em; line-height: 1; }
.offre-prix small { font-size: 14px; font-weight: 500; color: var(--doux); margin-left: 3px; letter-spacing: 0; }
.offre-facture { min-height: 22px; margin-top: 8px; font-size: 13px; color: var(--doux); }
.offre-quota { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--trait); font-weight: 700; color: var(--encre); }
.offre .coches { margin: 12px 0 24px; flex: 1; }
.offre .coches li { font-size: 14px; }
.offre .bouton { width: 100%; }
.p-an { display: none; }
.offres[data-periode="annuel"] .p-an { display: inline; }
.offres[data-periode="annuel"] .p-mois { display: none; }
.tarifs-pied { margin-top: 26px; text-align: center; font-size: 14px; color: var(--doux); }
.tarifs-plus { margin-top: 6px; text-align: center; font-size: 14px; color: var(--doux); }

/* ── FAQ ─────────────────────────────────────────────────────────────── */
.faq { margin-top: 36px; border-top: 1px solid var(--trait); }
.faq details { border-bottom: 1px solid var(--trait); }
.faq summary { position: relative; padding: 22px 44px 22px 0; font-size: 17px; font-weight: 650; color: var(--encre); }
.faq summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 10px; height: 10px; border-right: 2px solid var(--doux); border-bottom: 2px solid var(--doux); transform: translateY(-70%) rotate(45deg); transition: transform .2s ease; }
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq details p { padding: 0 44px 22px 0; color: var(--texte); }

/* ── Appel final et pied ─────────────────────────────────────────────── */
.final { padding: 0 0 104px; }
.final-boite {
  padding: 72px 40px; border-radius: 28px; text-align: center; color: #d8ece7;
  background: radial-gradient(120% 140% at 10% 0%, #3f9d90 0%, #1f5c54 45%, #0f2a26 100%);
  box-shadow: 0 40px 80px -40px rgba(15, 42, 38, .8);
}
.final-boite h2 { color: #fff; margin-inline: auto; max-width: 22ch; }
.final-boite p { margin: 16px 0 32px; font-size: 18px; }
.pied { border-top: 1px solid var(--trait); padding: 44px 0 56px; font-size: 14px; color: var(--doux); }
.pied-grille { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.pied p { margin-top: 10px; }
.pied-liens, .pied-langues { display: grid; gap: 8px; align-content: start; }
.pied a { color: var(--texte); text-decoration: none; }
.pied a:hover { color: var(--encre); text-decoration: underline; }
.pied-langues a[aria-current] { color: var(--accent-fonce); font-weight: 650; }

/* ── Adaptations ─────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .offres { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .fonctions { grid-template-columns: repeat(2, 1fr); }
  .formats-grille { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .demo-pied { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 900px) {
  .nav, .lien-discret { display: none; }
  .menu-mobile { display: block; }
  .hero { padding-top: 40px; }
  .hero-grille, .ar-grille { grid-template-columns: 1fr; gap: 40px; }
  .etapes, .metiers { grid-template-columns: 1fr; }
  .preuves { grid-template-columns: repeat(2, 1fr); margin-top: 48px; }
  /* Exemples : la scene en grand, les choix dessous, en bande qui defile. */
  .exemples { grid-template-columns: 1fr; }
  /* Plus haute que l image : l affiche est contenue, son fond la prolonge. */
  .scene { aspect-ratio: 4 / 5; }
  .scene-affiche img { object-fit: contain; }
  .exemples-liste { grid-auto-flow: column; grid-auto-columns: minmax(220px, 72%); overflow-x: auto; padding-bottom: 6px; scroll-snap-type: x mandatory; }
  .exemple { scroll-snap-align: start; }
  .exemple-plein { grid-row: 2; }
  .section { padding: 76px 0; }
  .pied-grille { grid-template-columns: 1fr 1fr; }
  .pied-grille > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .entete-actions .bouton-petit { display: none; }
  .offres { grid-template-columns: 1fr; }
  .fonctions, .formats-grille { grid-template-columns: 1fr; }
  .qr-carte { width: 100%; }
  .preuves { grid-template-columns: 1fr; }
  .final-boite { padding: 52px 22px; border-radius: 22px; }
  .hero-boutons .bouton { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* Fonds des affiches, releves dans les images par construire.mjs. */
.fond-architectes { background-color: #747474; }
.fond-agenceurs { background-color: #ffffff; }
.fond-industrie { background-color: #cccccc; }
.fond-bim { background-color: #f5f5f5; }