:root {
    /* charte HeyGustav (22/10/2026) : vert #038F87, bleu #022E53, jaune #F9B628 ; police Fredoka (titres, menus, boutons) */
    --creme: #f8f7f3; --creme-2: #eef2ef; --blanc: #ffffff; --encre: #022e53; --encre-2: #3f5670; --muet: #7a8494;
    --vert: #038f87; --vert-fonce: #02716b; --vert-clair: #def2f0; --ambre: #f9b628; --ambre-clair: #fff4d6;
    --bord: #e6dfd2; --ombre: 0 1px 2px rgba(24,32,28,.05), 0 8px 30px rgba(24,32,28,.08);
    --rayon: 16px; --titre: "Fredoka", "Inter", system-ui, sans-serif; --texte: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --creme: #061a2e; --creme-2: #0b2540; --blanc: #0f2e4d; --encre: #f2f4f7; --encre-2: #c2cad6; --muet: #8a96a8;
      --vert: #2fbdb3; --vert-fonce: #5fd0c8; --vert-clair: #0c3a42; --ambre: #f9b628; --ambre-clair: #2e2814; --bord: #1d4063;
      --ombre: 0 1px 2px rgba(0,0,0,.3), 0 8px 30px rgba(0,0,0,.35);
    }
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { margin: 0; background: var(--creme); color: var(--encre); font: 16px/1.6 var(--texte); -webkit-font-smoothing: antialiased; }
  a { color: inherit; }
  .conteneur { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
  h1, h2, h3 { font-family: var(--titre); font-weight: 600; line-height: 1.12; letter-spacing: 0; margin: 0; text-wrap: balance; }
  h2 { font-size: clamp(30px, 4vw, 44px); }
  .surtitre { font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--vert); margin-bottom: 12px; }
  .intro { color: var(--encre-2); font-size: 18px; max-width: 640px; margin: 14px 0 0; }
  section { padding: 96px 0; }
  .centre { text-align: center; } .centre .intro { margin-left: auto; margin-right: auto; }
  .btn { display: inline-flex; align-items: center; gap: 8px; font: 600 16px var(--titre); border-radius: 999px; padding: 13px 22px; text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: transform .15s, background .15s; }
  .btn:hover { transform: translateY(-1px); }
  .btn.plein { background: var(--vert); color: #fff; }
  .btn.plein:hover { background: var(--vert-fonce); }
  .btn.contour { border-color: var(--bord); background: var(--blanc); color: var(--encre); }
  :focus-visible { outline: 3px solid var(--ambre); outline-offset: 2px; }

  /* ---------- navigation */
  header.nav { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--creme) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--bord); }
  .nav .conteneur { display: flex; align-items: center; gap: 28px; height: 68px; }
  .logo { display: flex; align-items: center; gap: 10px; font: 700 20px var(--titre); text-decoration: none; }
  .logo b { color: var(--vert); font-weight: 700; }


  /* ---------- hero */
  .hero { padding: 72px 0 88px; }
  .hero .conteneur { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
  .hero h1 { font-size: clamp(36px, 4.8vw, 56px); }
  .hero h1 em { display: block; }

  /* ---------- menace ChatGPT */
  .duel { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 44px; }
  .parcours { border-radius: var(--rayon); padding: 26px; border: 1px solid var(--bord); background: var(--blanc); }
  .parcours.sans { background: var(--creme-2); }
  .parcours.avec { border: 2px solid var(--vert); }
  .parcours h3 { font-size: 20px; margin-bottom: 16px; }
  .etapes-p { display: grid; gap: 10px; }
  .etape-p { display: flex; align-items: center; gap: 12px; font-size: 15px; }
  .etape-p .n { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; flex: none; font-size: 15px; background: var(--blanc); border: 1px solid var(--bord); }
  .parcours.avec .etape-p .n { background: var(--vert-clair); border-color: transparent; }
  .etape-p.mauvais { color: #a33a2b; font-weight: 600; } .etape-p.bon { color: var(--vert); font-weight: 600; }
  .parcours .chute { margin-top: 18px; font-size: 14px; color: var(--encre-2); border-top: 1px dashed var(--bord); padding-top: 14px; }

  /* ---------- panneau de contrôle du web */
  .controle { margin-top: 28px; display: grid; grid-template-columns: 1fr 1.2fr; gap: 28px; align-items: center; background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 28px; }
  .controle h3 { font-size: 22px; margin-bottom: 8px; }
  .controle p { margin: 0; color: var(--encre-2); font-size: 15px; }
  .panneau { background: var(--creme-2); border-radius: 14px; padding: 18px; font-size: 14px; display: grid; gap: 14px; }
  .panneau .ligne-r { display: flex; justify-content: space-between; align-items: center; font-weight: 600; }
  .interr { width: 40px; height: 22px; border-radius: 999px; background: var(--vert); position: relative; flex: none; }
  .interr::after { content: ""; position: absolute; right: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; }
  .puces-d { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
  .puce-d { background: var(--blanc); border: 1px solid var(--bord); border-radius: 999px; padding: 3px 10px; font-size: 12.5px; font-weight: 500; }
  .puce-d.exclu { text-decoration: line-through; color: var(--muet); }
  .panneau small { color: var(--muet); font-weight: 400; }
  .hero h1 em { font-style: normal; color: var(--vert); }
  .hero .intro { font-size: 19px; }
  .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
  .rassurance { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 22px; font-size: 14px; color: var(--encre-2); }
  .rassurance span::before { content: "✓"; color: var(--vert); font-weight: 700; margin-right: 6px; }

  /* maquette de fiche produit */
  .fiche { background: var(--blanc); border: 1px solid var(--bord); border-radius: 22px; box-shadow: var(--ombre); padding: 22px; display: grid; grid-template-columns: 150px 1fr; gap: 20px; position: relative; }
  .fiche .visuel { border-radius: 14px; background: linear-gradient(160deg, #e9f1e6, #d5e6d2); display: grid; place-items: center; aspect-ratio: 3/4; }
  .fiche .nom { font: 700 19px var(--titre); }
  .fiche .prix { font-weight: 700; font-size: 18px; margin: 4px 0 10px; }
  .fiche .ajout { display: block; width: 100%; text-align: center; background: var(--encre); color: var(--creme); border-radius: 10px; padding: 11px; font-weight: 600; font-size: 14px; }
  .gustav { grid-column: 1 / -1; border: 1px solid var(--bord); border-radius: 14px; padding: 14px; background: var(--blanc); }
  .gustav .tete { display: flex; align-items: center; gap: 10px; font-size: 14px; }
  .gustav .tete small { display: block; color: var(--muet); font-size: 12px; }
  .avatar-img { width: 32px; height: 32px; border-radius: 9px; flex: none; }
  .logo-img { height: 36px; width: auto; display: block; }
  /* menus et pastilles dans la police de la marque */
  .nav nav a, .nav nav button, .surtitre, .etat { font-family: var(--titre); }
  /* boutons : vert de la marque dans les deux thèmes (le vert éclairci du mode sombre rendait le texte blanc peu lisible) */
  @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.plein { background: #038f87; } :root:not([data-theme="light"]) .btn.plein:hover { background: #02a59c; } }
  .pied-widget { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 10px; margin-top: 10px; font-size: 11px; color: var(--muet); }
  .pied-widget .marque { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
  .pied-widget .marque img { width: 14px; height: 14px; border-radius: 4px; }
  .pied-widget .marque b { color: var(--vert); }
  .avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--vert); display: grid; place-items: center; flex: none; }
  .fil { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; min-height: 150px; }
  .bulle { max-width: 88%; padding: 9px 12px; border-radius: 12px; font-size: 14px; line-height: 1.45; animation: entree .35s ease both; }
  .bulle.client { align-self: flex-end; background: var(--vert); color: #fff; border-bottom-right-radius: 4px; }
  .bulle.ia { align-self: flex-start; background: var(--creme-2); border-bottom-left-radius: 4px; }
  .bulle .source { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; }
  .lien-site { display: block; margin-top: 6px; font-size: 12.5px; font-weight: 600; color: var(--vert); text-decoration: none; }
  .exemple-grille { display: grid; grid-template-columns: 1.35fr 1fr; gap: 22px; align-items: start; }
  .vue-titre { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muet); margin-bottom: 10px; }
  .vue-marchand { background: var(--creme-2); border-radius: 14px; padding: 16px; }
  .vue-marchand .item { padding: 10px 0; border-bottom: 1px dashed var(--bord); font-size: 13.5px; }
  .vue-marchand .item:last-child { border-bottom: 0; }
  .vue-marchand .item .q { color: var(--encre); font-weight: 600; margin-bottom: 6px; }
  .src { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 600; padding: 2px 7px; border-radius: 999px; }
  .src.fiche { background: var(--vert-clair); color: var(--vert); }
  .src.aide { background: #e8eefb; color: #2a5cb8; }
  .src.web { background: var(--ambre-clair); color: #8a5a10; }
  .src.ia { background: #efe8fa; color: #6b3fb5; }
  @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .src.aide { background: #1d2740; color: #9bb8f0; } :root:not([data-theme="light"]) .src.web { color: #f0c27a; } :root:not([data-theme="light"]) .src.ia { background: #2a2140; color: #c7a8f5; } }
  .badge-ia { display: inline-flex; align-items: center; gap: 6px; background: var(--blanc); border: 1px solid var(--bord); border-radius: 999px; padding: 5px 12px 5px 6px; font-size: 13px; font-weight: 600; color: var(--encre-2); margin-bottom: 18px; }
  .badge-ia b { background: linear-gradient(135deg, var(--vert), #6b3fb5); color: #fff; border-radius: 999px; padding: 2px 8px; font-size: 11.5px; letter-spacing: .04em; }

  /* ---------- sources de savoir */
  .sources-grille { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0; margin-top: 48px; position: relative; }
  .source-carte { background: var(--blanc); border: 1px solid var(--bord); padding: 28px; position: relative; }
  .source-carte:first-child { border-radius: var(--rayon) 0 0 var(--rayon); }
  .source-carte:last-child { border-radius: 0 var(--rayon) var(--rayon) 0; background: linear-gradient(160deg, var(--blanc), var(--ambre-clair)); }
  .source-carte + .source-carte { border-left: 0; }
  .source-carte .rang { font: 700 13px var(--texte); color: var(--muet); letter-spacing: .06em; text-transform: uppercase; }
  .source-carte h3 { font-size: 22px; margin: 10px 0 8px; }
  .source-carte p { margin: 0; color: var(--encre-2); font-size: 15px; }
  .source-carte ul { margin: 14px 0 0; padding-left: 18px; color: var(--encre-2); font-size: 14px; }
  .source-carte .fleche { position: absolute; right: -15px; top: 50%; transform: translateY(-50%); width: 30px; height: 30px; border-radius: 50%; background: var(--vert); color: #fff; display: grid; place-items: center; z-index: 2; font-weight: 700; }
  .garde-fous { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px 26px; font-size: 14.5px; color: var(--encre-2); }
  .garde-fous span::before { content: "✓"; color: var(--vert); font-weight: 700; margin-right: 6px; }

  /* ---------- capacités IA */
  .capacites { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
  .capacite { padding: 22px; border-radius: var(--rayon); background: var(--blanc); border: 1px solid var(--bord); }
  .capacite .emoji { font-size: 24px; }
  .capacite h3 { font-size: 18px; margin: 10px 0 6px; }
  .capacite p { margin: 0; font-size: 14px; color: var(--encre-2); }
  .capacite .ex { margin-top: 10px; font-size: 13px; background: var(--creme-2); border-radius: 8px; padding: 8px 10px; color: var(--encre); }

  /* ---------- comparatif */
  .comparatif { margin-top: 40px; background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); overflow-x: auto; }
  .comparatif table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 680px; }
  .comparatif th, .comparatif td { padding: 14px 18px; text-align: center; border-bottom: 1px solid var(--bord); }
  .comparatif th:first-child, .comparatif td:first-child { text-align: left; color: var(--encre-2); }
  .comparatif thead th { font-weight: 600; font-size: 14px; color: var(--muet); }
  .comparatif thead th.nous { color: var(--vert); font: 700 17px var(--titre); background: var(--vert-clair); }
  .comparatif td.nous { background: var(--vert-clair); }
  .comparatif tr:last-child td { border-bottom: 0; }
  .oui { color: var(--vert); font-weight: 700; } .non-c { color: var(--muet); } .partiel { color: #8a5a10; font-size: 13.5px; }
  @keyframes entree { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
  .points span { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--muet); margin-right: 3px; animation: clign 1s infinite; }
  .points span:nth-child(2) { animation-delay: .15s; } .points span:nth-child(3) { animation-delay: .3s; }
  @keyframes clign { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }
  .etiquette-flottante { position: absolute; right: -14px; top: -14px; background: var(--ambre); color: #3a2405; font-weight: 700; font-size: 13px; padding: 7px 12px; border-radius: 999px; box-shadow: var(--ombre); transform: rotate(3deg); }

  /* ---------- plateformes */
  .plateformes { padding: 28px 0; border-top: 1px solid var(--bord); border-bottom: 1px solid var(--bord); background: var(--creme-2); }
  .plateformes .conteneur { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 36px; color: var(--encre-2); font-size: 15px; }
  .plateformes strong { color: var(--encre); font-weight: 600; }

  /* ---------- avantages */
  .grille { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
  .carte { background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 26px; }
  .carte .icone { width: 44px; height: 44px; border-radius: 12px; background: var(--vert-clair); color: var(--vert); display: grid; place-items: center; margin-bottom: 16px; }
  .carte h3 { font-size: 21px; margin-bottom: 8px; }
  .carte p { margin: 0; color: var(--encre-2); font-size: 15px; }
  .carte.vedette { grid-column: span 2; background: var(--vert); color: #fff; border-color: var(--vert); display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
  .carte.vedette p { color: rgba(255,255,255,.85); }
  .carte.vedette .icone { background: rgba(255,255,255,.15); color: #fff; }
  .mini-ab { background: rgba(255,255,255,.1); border-radius: 12px; padding: 16px; font-size: 13px; }
  .mini-ab .l { display: grid; grid-template-columns: 92px 1fr 46px; gap: 10px; align-items: center; margin: 6px 0; }
  .mini-ab .b { height: 14px; border-radius: 0 4px 4px 0; }
  .mini-ab .note { font-size: 11.5px; opacity: .75; margin-top: 8px; }

  /* ---------- étapes */
  .etapes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; counter-reset: e; }
  .etape { padding: 26px; border-radius: var(--rayon); background: var(--creme-2); position: relative; }
  .etape::before { counter-increment: e; content: counter(e); font: 700 44px var(--titre); color: var(--vert); opacity: .9; display: block; line-height: 1; margin-bottom: 12px; }
  .etape h3 { font-size: 20px; margin-bottom: 6px; }
  .etape p { margin: 0; color: var(--encre-2); font-size: 15px; }
  pre.code { background: var(--encre); color: #d8f3e6; border-radius: 10px; padding: 12px 14px; font-size: 12.5px; white-space: pre-wrap; word-break: break-all; margin: 14px 0 0; }

  /* ---------- exemples */
  .onglets { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 36px; }
  .onglets button { font: 600 14px var(--texte); border: 1px solid var(--bord); background: var(--blanc); color: var(--encre-2); border-radius: 999px; padding: 9px 16px; cursor: pointer; }
  .onglets button[aria-selected="true"] { background: var(--encre); color: var(--creme); border-color: var(--encre); }
  .exemple { text-align: left; max-width: 980px; margin: 28px auto 0; background: var(--blanc); border: 1px solid var(--bord); border-radius: 20px; padding: 24px; box-shadow: var(--ombre); }
  .exemple .produit { display: flex; align-items: center; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid var(--bord); margin-bottom: 14px; font-size: 14px; color: var(--encre-2); }
  .exemple .produit strong { color: var(--encre); font-size: 16px; display: block; }
  .exemple .produit .pastille { width: 44px; height: 44px; border-radius: 10px; background: var(--creme-2); display: grid; place-items: center; font-size: 22px; }
  .exemple .fil { min-height: 0; }

  /* ---------- simulateur */
  .simu { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 44px; align-items: start; }
  .curseurs { background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 26px; display: grid; gap: 20px; }
  .curseur label { display: flex; justify-content: space-between; font-size: 14.5px; font-weight: 600; margin-bottom: 6px; }
  .curseur label output { color: var(--vert); font-variant-numeric: tabular-nums; }
  input[type=range] { width: 100%; accent-color: var(--vert); }
  .resultat { background: var(--vert); color: #fff; border-radius: var(--rayon); padding: 30px; }
  .resultat .gros { font: 700 clamp(40px, 5vw, 56px) var(--titre); line-height: 1; margin: 8px 0 4px; font-variant-numeric: tabular-nums; }
  .resultat .lignes { margin-top: 22px; display: grid; gap: 10px; font-size: 15px; }
  .resultat .lignes div { display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.18); padding-top: 10px; }
  .resultat .avert { font-size: 12.5px; opacity: .78; margin-top: 18px; }

  /* ---------- forfaits */
  .bascule { display: inline-flex; margin-top: 28px; background: var(--creme-2); border: 1px solid var(--bord); border-radius: 999px; padding: 4px; }
  .bascule button { font: 600 14px var(--texte); border: 0; background: none; color: var(--encre-2); padding: 8px 16px; border-radius: 999px; cursor: pointer; }
  .bascule button[aria-pressed="true"] { background: var(--blanc); color: var(--encre); box-shadow: 0 1px 3px rgba(0,0,0,.08); }
  .bascule em { font-style: normal; color: var(--vert); font-size: 12px; margin-left: 4px; }
  .forfaits { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 36px; text-align: left; }
  @media (max-width: 1180px) { .forfaits { grid-template-columns: repeat(3, 1fr); } }
  .forfait { background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 26px 22px; display: flex; flex-direction: column; position: relative; }
  .forfait.populaire { border: 2px solid var(--vert); box-shadow: var(--ombre); }
  .forfait .ruban { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); white-space: nowrap; background: var(--vert); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
  .forfait h3 { font-size: 22px; }
  .forfait .pour { font-size: 13.5px; color: var(--muet); margin: 4px 0 16px; min-height: 40px; }
  .forfait .tarif { font: 700 40px var(--titre); line-height: 1; }
  .forfait .tarif small { font: 500 14px var(--texte); color: var(--muet); }
  .forfait .sous-tarif { font-size: 12.5px; color: var(--muet); min-height: 20px; margin: 6px 0 18px; }
  .forfait ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 9px; font-size: 14px; color: var(--encre-2); flex: 1; align-content: start; }
  .forfait li::before { content: "✓"; color: var(--vert); font-weight: 700; margin-right: 8px; }
  .forfait li.non { color: var(--muet); } .forfait li.non::before { content: "–"; color: var(--muet); }
  .forfait li.info { color: var(--encre-2); font-size: 13px; background: var(--creme-2); border-radius: 8px; padding: 6px 8px; }
  .forfait li.info::before { content: "ⓘ"; color: var(--muet); }
  /* bouton de souscription : pleine largeur, sur une ligne, aligné en bas de toutes les cartes */
  .btn-forfait { display: block; margin-top: auto; text-align: center; white-space: nowrap; text-decoration: none;
                 font: 600 14px var(--texte); padding: 12px 10px; border-radius: 10px;
                 border: 1.5px solid var(--vert); color: var(--vert); background: transparent; transition: background .15s, color .15s; }
  .btn-forfait:hover { background: var(--vert-clair); }
  .btn-forfait.plein { background: var(--vert); color: #fff; }
  .btn-forfait.plein:hover { background: var(--vert-fonce); }
  .options { margin-top: 18px; font-size: 14px; color: var(--encre-2); }

  /* ---------- avis */
  .avis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
  .avis figure { margin: 0; background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 26px; display: flex; flex-direction: column; gap: 16px; position: relative; }
  .avis blockquote { margin: 0; font-size: 16px; line-height: 1.55; }
  .avis .etoiles { color: var(--ambre); letter-spacing: 2px; }
  .avis figcaption { display: flex; align-items: center; gap: 12px; font-size: 14px; margin-top: auto; }
  .avis figcaption .ini { width: 40px; height: 40px; border-radius: 50%; background: var(--vert-clair); color: var(--vert); display: grid; place-items: center; font-weight: 700; }
  .avis figcaption small { display: block; color: var(--muet); }
  .tag-exemple { position: absolute; top: 14px; right: 14px; font-size: 11px; font-weight: 600; color: var(--muet); border: 1px dashed var(--bord); border-radius: 999px; padding: 2px 8px; }

  /* ---------- FAQ */
  .faq { max-width: 780px; margin: 40px auto 0; }
  details { border-bottom: 1px solid var(--bord); padding: 18px 0; }
  summary { cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
  summary::-webkit-details-marker { display: none; }
  summary::after { content: "+"; color: var(--vert); font-size: 22px; line-height: 1; }
  details[open] summary::after { content: "–"; }
  details p { color: var(--encre-2); margin: 10px 0 0; }

  /* ---------- souscription */
  .souscription { background: #022E53; color: #FAF6EF; border-radius: 28px; padding: 56px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; }
  .souscription h2 { color: #FAF6EF; }
  .souscription .intro { color: rgba(250,246,239,.75); }
  .souscription ul { padding-left: 18px; color: rgba(250,246,239,.85); margin-top: 22px; }
  .souscription ul li { margin: 6px 0; }
  form.inscription { background: var(--blanc); color: var(--encre); border-radius: 18px; padding: 26px; display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
  form.inscription .plein-l { grid-column: 1 / -1; }
  form.inscription label { font-size: 13.5px; font-weight: 600; display: block; margin-bottom: 5px; }
  form.inscription input, form.inscription select { width: 100%; font: 15px var(--texte); padding: 11px 12px; border: 1px solid var(--bord); border-radius: 10px; background: var(--blanc); color: var(--encre); }
  form.inscription .consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--encre-2); font-weight: 400; }
  form.inscription .consent input { width: auto; margin-top: 3px; }
  form.inscription .btn { justify-content: center; border: 0; }
  .retour-form { font-size: 14px; }
  .retour-form.ok { color: var(--vert); font-weight: 600; } .retour-form.ko { color: #c0392b; }

  footer { padding: 48px 0 60px; color: var(--muet); font-size: 14px; }
  footer .conteneur { display: flex; flex-wrap: wrap; gap: 18px 32px; align-items: center; }
  footer nav { display: flex; gap: 20px; margin-left: auto; }

  @media (max-width: 960px) {
    .hero .conteneur, .simu, .souscription { grid-template-columns: 1fr; }
    .grille, .etapes, .avis { grid-template-columns: 1fr 1fr; }
    .carte.vedette { grid-template-columns: 1fr; }
    .forfaits { grid-template-columns: 1fr 1fr; }
    .capacites { grid-template-columns: 1fr 1fr; }
    .duel, .controle, .exemple-grille { grid-template-columns: 1fr; }
    .sources-grille { grid-template-columns: 1fr; }
    .source-carte:first-child { border-radius: var(--rayon) var(--rayon) 0 0; }
    .source-carte:last-child { border-radius: 0 0 var(--rayon) var(--rayon); }
    .source-carte + .source-carte { border-left: 1px solid var(--bord); border-top: 0; }
    .source-carte .fleche { right: auto; left: 50%; top: auto; bottom: -15px; transform: translateX(-50%) rotate(90deg); }
    .souscription { padding: 32px 24px; }
  }
  @media (max-width: 640px) {
    section { padding: 64px 0; }
    .conteneur { padding: 0 16px; }
    .grille, .etapes, .avis, .forfaits, .capacites { grid-template-columns: 1fr; }
    .carte.vedette { grid-column: auto; }
    .fiche { grid-template-columns: 96px 1fr; padding: 16px; }
    .etiquette-flottante { right: 8px; }
    form.inscription { grid-template-columns: 1fr; }
  }
  @media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }

  /* ================================================================ commun au site (galaxie, 21/10/2026) */
  /* navigation : Solutions (menu déroulant), Contact, bouton Essai séparé */
  .nav .conteneur { position: relative; }
  .nav .menu { display: flex; align-items: center; gap: 6px; margin-left: auto; font-size: 15px; }
  .nav .menu > a, .nav .menu > .deroulant > button { color: var(--encre-2); text-decoration: none; background: none; border: 0;
    font: 500 15px var(--texte); padding: 8px 12px; border-radius: 10px; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
  .nav .menu > a:hover, .nav .menu > .deroulant > button:hover, .nav .menu > a[aria-current="page"] { color: var(--encre); background: var(--creme-2); }
  .deroulant { position: relative; }
  .deroulant > button::after { content: ""; width: 6px; height: 6px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg) translateY(-2px); }
  .panneau-solutions { position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%); width: 580px; background: var(--blanc);
    border: 1px solid var(--bord); border-radius: 18px; box-shadow: var(--ombre); padding: 12px; display: none; grid-template-columns: 1fr 1fr; gap: 4px; }
  .deroulant.ouvert .panneau-solutions { display: grid; }
  .panneau-solutions a { display: grid; grid-template-columns: 44px 1fr; gap: 12px; align-items: center; padding: 10px; border-radius: 12px; text-decoration: none; }
  .panneau-solutions a:hover, .panneau-solutions a[aria-current="page"] { background: var(--creme-2); }
  .panneau-solutions svg { width: 44px; height: 44px; display: block; }
  .panneau-solutions b { display: block; font-size: 15px; } .panneau-solutions small { display: block; color: var(--muet); font-size: 13px; line-height: 1.35; }
  .panneau-solutions .toutes { grid-column: 1 / -1; grid-template-columns: 1fr; text-align: center; font-size: 14px; font-weight: 600; color: var(--vert); }
  .nav .essai { margin-left: 14px; padding: 10px 18px; font-size: 14px; }
  .nav .menu .essai-mobile { display: none; }
  .nav .burger { display: none; margin-left: auto; background: none; border: 1px solid var(--bord); border-radius: 10px; width: 42px; height: 42px; cursor: pointer; color: var(--encre); font-size: 20px; }
  .etat { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .04em; border-radius: 999px; padding: 2px 8px; margin-left: 6px; vertical-align: 2px; font-family: var(--texte); }
  .etat.dispo { background: var(--vert-clair); color: var(--vert); }
  .etat.gratuit { background: var(--ambre-clair); color: #8a5a10; }
  .etat.bientot { background: var(--creme-2); color: var(--muet); border: 1px dashed var(--bord); }
  @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .etat.gratuit { color: #f0c27a; } }

  /* en-tête des pages de solution */
  .tete-page { padding: 64px 0 72px; }
  .tete-page .conteneur { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
  .tete-page h1 { font-size: clamp(34px, 4.4vw, 52px); } .tete-page h1 em { font-style: normal; color: var(--vert); }
  .marque-planete { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; font: 600 22px var(--titre); }
  .marque-planete svg { width: 54px; height: 54px; display: block; }
  /* nom des planètes : « Gustav’ » gris foncé, nom de la planète dans sa couleur (plus clair en mode sombre) */
  .nom-planete { font-family: var(--titre); white-space: nowrap; letter-spacing: -.005em; }
  .nom-planete .g { color: #4a4f57; font-weight: 500; } .nom-planete .p { color: var(--c); font-weight: 600; }
  @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .nom-planete .g { color: #c9ced6; }
    :root:not([data-theme="light"]) .nom-planete .p { color: color-mix(in srgb, var(--c) 72%, #fff); } }

  /* galaxie (accueil) */
  .orbite { position: relative; aspect-ratio: 1; max-width: 460px; margin: 0 auto; width: 100%; }
  .orbite::before, .orbite::after { content: ""; position: absolute; border: 1.5px dashed var(--bord); border-radius: 50%; }
  .orbite::before { inset: 16%; } .orbite::after { inset: 0; }
  .orbite::before, .orbite::after { z-index: 0; } .orbite a, .orbite .centre-o { z-index: 1; }   /* icônes au-dessus des orbites */
  .orbite .centre-o { position: absolute; left: 50%; top: 50%; width: 32%; transform: translate(-50%, -50%); }
  .orbite .centre-o svg { width: 100%; height: auto; display: block; filter: drop-shadow(0 10px 24px rgba(3,143,135,.28)); }
  .orbite a { position: absolute; width: 18%; transform: translate(-50%, -50%); text-align: center; text-decoration: none; font-size: 13px; font-weight: 600; color: var(--encre-2); transition: transform .2s; }
  .orbite a:hover { transform: translate(-50%, -50%) scale(1.06); }
  .orbite a svg { width: 100%; height: auto; display: block; margin-bottom: 4px; }
  .planetes-g { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 44px; }
  .planete-g { background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 22px; text-decoration: none; display: flex; flex-direction: column; gap: 8px; transition: transform .15s, box-shadow .15s; }
  .planete-g:hover { transform: translateY(-2px); box-shadow: var(--ombre); }
  .planete-g svg { width: 56px; height: 56px; display: block; }
  .planete-g h3 { font-size: 20px; white-space: nowrap; } .planete-g p { margin: 0; color: var(--encre-2); font-size: 14.5px; }
  .planete-g .gain { margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--bord); font-size: 13.5px; font-weight: 600; color: var(--vert); }
  .parcours-g { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 44px; }
  .parcours-g > div { padding: 24px; background: var(--blanc); border: 1px solid var(--bord); }
  .parcours-g > div + div { border-left: 0; }
  .parcours-g > div:first-child { border-radius: var(--rayon) 0 0 var(--rayon); } .parcours-g > div:last-child { border-radius: 0 var(--rayon) var(--rayon) 0; }
  .parcours-g .phase { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muet); }
  .parcours-g h3 { font-size: 21px; margin: 8px 0 6px; } .parcours-g p { margin: 0; font-size: 14.5px; color: var(--encre-2); }
  .parcours-g .qui { display: flex; align-items: center; gap: 8px; margin-top: 14px; font-size: 14px; font-weight: 600; text-decoration: none; }
  .parcours-g .qui svg { width: 30px; height: 30px; display: block; }
  .chiffres { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
  .chiffre { background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 22px; }
  .chiffre b { display: block; font: 700 34px var(--titre); color: var(--vert); line-height: 1.1; margin-bottom: 6px; }
  .chiffre span { font-size: 14.5px; color: var(--encre-2); } .chiffre small { display: block; margin-top: 8px; font-size: 12px; color: var(--muet); }
  .bande-cta { background: var(--encre); color: var(--creme); border-radius: 28px; padding: 48px; display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: center; }
  .bande-cta h2 { color: var(--creme); } .bande-cta p { color: rgba(250,246,239,.78); margin: 12px 0 0; }
  .bande-cta .actions { justify-content: flex-end; margin: 0; }
  .bande-cta .btn.contour { background: transparent; color: var(--creme); border-color: rgba(250,246,239,.35); }
  @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .bande-cta { background: #13203a; border: 1px solid var(--bord); } }
  .bientot-bandeau { background: var(--ambre-clair); border: 1px solid color-mix(in srgb, var(--ambre) 40%, transparent); border-radius: 14px; padding: 14px 18px; font-size: 15px; margin-top: 22px; }
  .illustratif { font-size: 12.5px; color: var(--muet); margin-top: 10px; }
  .formulaire { background: var(--blanc); color: var(--encre); border-radius: 18px; padding: 26px; display: grid; gap: 14px; grid-template-columns: 1fr 1fr; border: 1px solid var(--bord); }
  .formulaire .plein-l { grid-column: 1 / -1; }
  .formulaire label { font-size: 13.5px; font-weight: 600; display: block; margin-bottom: 5px; }
  .formulaire input, .formulaire select, .formulaire textarea { width: 100%; font: 15px var(--texte); padding: 11px 12px; border: 1px solid var(--bord); border-radius: 10px; background: var(--blanc); color: var(--encre); }
  .formulaire textarea { min-height: 140px; resize: vertical; }
  .formulaire .consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--encre-2); font-weight: 400; }
  .formulaire .consent input { width: auto; margin-top: 3px; }
  .formulaire .choix { display: flex; flex-wrap: wrap; gap: 8px; }
  .formulaire .choix label { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; border: 1px solid var(--bord); border-radius: 999px; padding: 8px 14px; margin: 0; cursor: pointer; }
  .formulaire .choix input { width: auto; margin: 0; }
  .formulaire .btn { justify-content: center; border: 0; }
  .deux-col { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
  .deux-col ul.liste { padding-left: 0; list-style: none; display: grid; gap: 10px; margin: 22px 0 0; }
  .deux-col ul.liste li::before { content: "✓"; color: var(--vert); font-weight: 700; margin-right: 8px; }
  @media (max-width: 1100px) { .planetes-g { grid-template-columns: repeat(3, 1fr); } }
  @media (max-width: 960px) {
    .nav .menu { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--creme); border-bottom: 1px solid var(--bord); flex-direction: column; align-items: stretch; padding: 12px 16px 18px; gap: 2px; box-shadow: var(--ombre); }
    .nav.ouvert .menu { display: flex; }
    .nav .burger { display: grid; place-items: center; }
    .nav .essai { margin-left: 8px; }
    .panneau-solutions { position: static; transform: none; width: auto; box-shadow: none; grid-template-columns: 1fr; border: 0; padding: 4px 0; }
    .tete-page .conteneur, .bande-cta, .deux-col { grid-template-columns: 1fr; }
    .bande-cta .actions { justify-content: flex-start; }
    .parcours-g, .chiffres { grid-template-columns: 1fr 1fr; gap: 12px; }
    .parcours-g > div { border: 1px solid var(--bord) !important; border-radius: var(--rayon) !important; }
  }
  @media (max-width: 640px) {
    .planetes-g, .parcours-g, .chiffres, .formulaire { grid-template-columns: 1fr; }
    .bande-cta { padding: 32px 22px; }
    .nav .essai { display: none; }
    .nav .menu .essai-mobile { display: block; color: var(--vert); font-weight: 700; }
  }