/* Home isb-formation.fr : « suivre l'eau sur un vrai chantier de tuiles plates ».
   Charte : global.css (Space Young Serif, #35231d, #c34b22, #f2ecea, cartes 45 px, ombre dure 0 5px 0). */
@font-face{font-family:"Young Serif";src:url("/fonts/grotesk/SpaceGrotesk-Regular.woff") format("woff");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Young Serif";src:url("/fonts/grotesk/SpaceGrotesk-Medium.woff") format("woff");font-weight:500 700;font-style:normal;font-display:swap}
html:root{--f-titre: 'Young Serif', Georgia, 'Times New Roman', serif;--f-texte: 'Onest', system-ui, -apple-system, 'Segoe UI', sans-serif}
html.lenis,html.lenis body{height:auto}.lenis.lenis-smooth{scroll-behavior:auto!important}.lenis.lenis-smooth [data-lenis-prevent]{overscroll-behavior:contain}.lenis.lenis-stopped{overflow:hidden}

.tn-home{--encre:#35231d;--vert:#c34b22;--gris:#f2ecea;--vert-fond:#f0cdbf;--blanc:#fff;--encre-2:color-mix(in srgb,#35231d 74%,#fff);--trait:1px solid #35231d;--ombre:0 5px 0 #35231d;--rayon:45px;--col:min(100% - 32px,1100px);
  color:var(--encre);background:var(--blanc);font-family:var(--f-texte);overflow:clip}
.tn-home h1,.tn-home h2,.tn-home h3{font-family:"Young Serif",sans-serif;font-weight:500;letter-spacing:-.02em}
.tn-home mark{background:linear-gradient(transparent 56%,var(--vert) 56%,var(--vert) 94%,transparent 94%);color:var(--encre);padding:0 .06em;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.tn-home svg{width:18px;height:18px;flex:none}

/* grammaire commune */
.tn-kicker{display:inline-flex;align-items:center;gap:8px;background:var(--vert-fond);color:var(--encre);border:var(--trait);border-radius:7px;padding:4px 10px;font-size:15px;font-weight:500;line-height:1.3}
.tn-kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--encre)}
.tn-section{width:var(--col);margin-inline:auto;padding-block:96px 0}
.tn-tete{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:780px;margin:0 auto 44px}
.tn-tete h2{font-size:clamp(32px,4vw,46px);line-height:1.08;margin:18px 0 0;text-wrap:balance}
.tn-tete p{margin:16px 0 0;max-width:60ch;color:var(--encre-2);font-size:18px;text-wrap:pretty}
.tn-carte{background:var(--gris);border:var(--trait);border-radius:var(--rayon);box-shadow:var(--ombre)}
.tn-mini{margin:0 0 12px;font-size:14px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--encre-2)}
.tn-lien{display:inline-flex;align-items:center;gap:8px;font-weight:500;text-decoration:underline;text-decoration-color:var(--vert);text-decoration-thickness:3px;text-underline-offset:5px}
.tn-lien:hover{text-decoration-color:var(--encre)}
.tn-home .button{gap:8px;font-weight:500;transition:background .2s,color .2s}
.tn-home .button:hover{background:var(--vert-fond);color:var(--encre)}
.tn-home .button-outline:hover,.tn-home .button-light:hover{background:var(--vert-fond)}
.tn-home a:focus-visible,.tn-home button:focus-visible,.tn-home input:focus-visible,.tn-home select:focus-visible{outline:3px solid var(--encre);outline-offset:3px;box-shadow:0 0 0 6px var(--vert)}

/* hero : photo du chantier sur toute la hauteur, rail de l'eau posé dans la photo */
.tn-hero{width:var(--col);margin-inline:auto;min-height:calc(100svh - var(--header-h,116px));display:grid;grid-template-columns:minmax(0,1fr) minmax(0,470px);gap:72px;align-items:center;padding-block:28px 32px}
.tn-hero>*{min-width:0}
.tn-hero h1{font-size:clamp(40px,4.4vw,60px);line-height:1.05;margin:22px 0 0;text-wrap:balance}
.tn-chapeau{font-size:19px;line-height:1.55;color:var(--encre-2);margin:22px 0 0;max-width:50ch}
.tn-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.tn-reperes{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:34px 0 0;padding:0}
.tn-reperes li{display:inline-flex;align-items:baseline;gap:6px;background:var(--gris);border-radius:7px;padding:5px 11px;font-size:14px;color:var(--encre-2)}
.tn-reperes b{font-size:19px;font-weight:500;color:var(--encre);font-variant-numeric:tabular-nums}

.tn-scene{margin:0;width:100%;justify-self:end}
.tn-photo{position:relative;aspect-ratio:4/5;border:var(--trait);border-radius:var(--rayon);box-shadow:var(--ombre);overflow:hidden;background:var(--gris)}
.tn-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 50%}
.tn-pt{position:absolute;z-index:2;transform:translate(-50%,-50%);display:grid;place-items:center;width:44px;height:44px;text-decoration:none}
.tn-pt span{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--blanc);border:0;box-shadow:0 0 0 2px var(--encre);font-weight:500;font-size:15px;color:var(--encre);transition:transform .25s,background .25s,color .25s}
.tn-pt:before{content:"";position:absolute;left:50%;top:50%;width:32px;height:32px;margin:-16px 0 0 -16px;border-radius:50%;border:2px solid var(--vert);opacity:0}
.tn-pt.is-actif span{background:var(--vert-fond);transform:scale(1.15)}
.tn-pt.is-actif:before{animation:tn-onde 1.8s ease-out infinite}
@keyframes tn-onde{0%{transform:scale(1);opacity:.9}100%{transform:scale(2.4);opacity:0}}

.tn-rail{position:absolute;z-index:3;left:14px;top:14px;bottom:14px;width:118px;margin:0;padding:16px 8px;list-style:none;display:flex;flex-direction:column;justify-content:space-between;background:color-mix(in srgb,#35231d 84%,transparent);border-radius:31px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.tn-rail li{position:relative;z-index:1}
.tn-rail button{display:flex;align-items:center;gap:8px;width:100%;min-height:44px;padding:0 4px;border:0;border-radius:14px;background:transparent;color:#d3cfcd;font-size:13.5px;font-weight:500;cursor:pointer;text-align:left;transition:color .25s}
.tn-rail button b{display:grid;place-items:center;flex:none;width:28px;height:28px;border-radius:50%;border:1px solid #a49c99;background:var(--encre);font-weight:500;font-size:13px;transition:background .25s,color .25s,border-color .25s}
.tn-rail button.is-vu b{border-color:var(--vert-fond);color:var(--vert-fond)}
.tn-rail button.is-actif{color:var(--blanc)}
.tn-rail button.is-actif b{background:var(--vert-fond);border-color:var(--encre);color:var(--encre)}
.tn-rail-fil{position:absolute;left:25px;top:40px;bottom:40px;width:2px;background:color-mix(in srgb,#fff 22%,#35231d)}
.tn-rail-fil i{display:block;width:100%;height:0;background:var(--vert);transition:height .6s cubic-bezier(.6,0,.3,1)}
.tn-goutte{position:absolute;z-index:0;left:20px;top:58px;width:12px;height:12px;background:var(--vert);border-radius:50% 0 50% 50%;transform:rotate(135deg);transition:top .6s cubic-bezier(.6,0,.3,1);pointer-events:none}

.tn-legende-zone{display:grid;margin-top:20px;padding:0 6px}
.tn-zone-txt{grid-area:1/1;transition:opacity .3s}
.tn-zone-txt:not(.is-actif){visibility:hidden;opacity:0}
.tn-zone-haut{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;margin:0}
.tn-zone-num{font-size:14px;font-weight:500;background:var(--vert-fond);border-radius:7px;padding:1px 7px;font-variant-numeric:tabular-nums}
.tn-zone-num small{font-size:12px}
.tn-zone-haut strong{font-size:19px;font-weight:500}
.tn-zone-haut .tn-lien{margin-left:auto;font-size:15px}
.tn-zone-fait{margin:8px 0 0;font-size:15.5px;line-height:1.45;color:var(--encre-2)}

/* diagnostic */
.tn-diag-grille{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;padding:44px}
.tn-diag-grille>*{min-width:0}
.tn-diag-choix{display:flex;flex-direction:column;gap:10px}
.tn-diag-choix button{display:flex;align-items:center;gap:14px;min-height:58px;text-align:left;border:var(--trait);border-radius:16px;background:var(--blanc);padding:10px 16px;font-size:16px;cursor:pointer;color:var(--encre);transition:background .2s,transform .2s}
.tn-diag-choix button b{display:grid;place-items:center;flex:none;width:34px;height:34px;border-radius:50%;border:var(--trait);font-weight:500;font-size:14px}
.tn-diag-choix button.is-actif{background:var(--encre);color:var(--blanc);transform:translateX(6px)}
.tn-diag-choix button.is-actif b{background:var(--vert-fond);color:var(--encre);border-color:var(--encre)}
.tn-diag-fiche{background:var(--blanc);border:var(--trait);border-radius:32px;box-shadow:var(--ombre);padding:30px;height:100%}
.tn-diag-fiche[hidden]{display:none}
.tn-diag-fiche dl{margin:0;display:grid;gap:0}
.tn-diag-fiche dl div{display:grid;grid-template-columns:110px 1fr;gap:14px;padding:13px 0;border-bottom:1px dashed var(--encre)}
.tn-diag-fiche dt{font-size:14px;font-weight:500;color:var(--encre-2);padding-top:2px}
.tn-diag-fiche dd{margin:0;font-size:17px;line-height:1.4}
.tn-diag-liens{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:24px}
.tn-diag-liens .button{white-space:normal;text-align:left}

/* couches */
.tn-couches-grille{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;align-items:center}
.tn-couches-grille>*{min-width:0}
.tn-couches-photo{margin:0}
.tn-couches-cadre{position:relative;aspect-ratio:1/1;border:var(--trait);border-radius:var(--rayon);box-shadow:var(--ombre);overflow:hidden}
.tn-couches-cadre img{width:100%;height:100%;object-fit:cover}
.tn-repere{position:absolute;transform:translate(-50%,-50%);background:var(--blanc);border:var(--trait);border-radius:7px;padding:3px 9px;font-size:14px;font-weight:500;white-space:nowrap;box-shadow:0 3px 0 var(--encre)}
.tn-repere:before{content:"";display:inline-block;width:7px;height:7px;margin-right:7px;border-radius:50%;background:var(--vert);border:1px solid var(--encre);vertical-align:1px}
.tn-couches-photo figcaption{margin-top:16px;font-size:15px;color:var(--encre-2);text-align:center}
.tn-pile{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.tn-couche a{display:grid;grid-template-columns:48px 1fr auto;align-items:center;gap:16px;padding:16px 22px;border:var(--trait);border-radius:22px;text-decoration:none;box-shadow:0 4px 0 var(--encre);transition:transform .2s}
.tn-couche a:hover{transform:translateY(-3px)}
.tn-couche b{font-size:26px;font-weight:500;font-variant-numeric:tabular-nums}
.tn-couche strong{display:block;font-size:19px;font-weight:500}
.tn-couche small{display:block;font-size:15px;line-height:1.4;margin-top:2px}
.tn-couche-profil a{background:var(--blanc)}
.tn-couche-parement a{background:var(--gris)}
.tn-couche-air a{background:var(--blanc);border-style:dashed;box-shadow:none}
.tn-couche-ecran a{background:var(--vert-fond)}
.tn-couche-support a{background:var(--encre);color:var(--blanc)}
.tn-couche-support a small{color:color-mix(in srgb,#fff 80%,#35231d)}

/* prix */
.tn-prix-grille{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:40px;padding:44px}
.tn-prix-grille>*{min-width:0}
.tn-legende{display:flex;gap:22px;margin:0 0 18px;font-size:14px}
.tn-legende span{display:inline-flex;align-items:center;gap:8px}
.tn-legende span:before{content:"";width:22px;height:10px;border-radius:5px;border:var(--trait)}
.tn-l-f:before{background:var(--blanc)}.tn-l-p:before{background:var(--encre)}
.tn-jauge{padding:12px 0;border-bottom:1px dashed var(--encre)}
.tn-jauge p{display:flex;justify-content:space-between;gap:12px;margin:0 0 10px}
.tn-jauge strong{font-weight:500;font-size:17px}.tn-jauge small{font-size:14px;color:var(--encre-2);text-align:right}
.tn-barre{position:relative;height:34px;border-radius:10px;background:repeating-linear-gradient(90deg,transparent 0 calc(33.333% - 1px),color-mix(in srgb,#35231d 18%,transparent) calc(33.333% - 1px) 33.333%)}
.tn-barre span{position:absolute;top:3px;height:12px;border-radius:6px;border:var(--trait);transform-origin:left center}
.tn-b-f{background:var(--blanc)}
.tn-b-p{top:18px!important;background:var(--encre)}
.tn-b-p em{position:absolute;left:calc(100% + 8px);top:50%;transform:translateY(-50%);font-style:normal;font-size:13px;font-weight:500;white-space:nowrap}
.tn-jauge:last-of-type .tn-b-p em{left:auto;right:10px;color:var(--vert-fond)}
.tn-echelle{display:flex;justify-content:space-between;margin:10px 0 0;font-size:13px;color:var(--encre-2)}
.tn-calc-m2{background:var(--blanc);border:var(--trait);border-radius:32px;box-shadow:var(--ombre);padding:26px;display:grid;gap:12px;align-content:start}
.tn-calc-m2 label,.tn-debit label{display:grid;gap:6px;font-size:15px;font-weight:500}
.tn-calc-m2 input,.tn-calc-m2 select,.tn-debit input{min-height:48px;border:var(--trait);border-radius:13px;padding:8px 12px;background:var(--blanc);color:var(--encre);font-size:17px}
.tn-calc-m2 output{display:grid;gap:2px;background:var(--encre);color:var(--blanc);border-radius:20px;padding:16px 18px;margin-top:4px}
.tn-calc-m2 output b{font-weight:500}
.tn-calc-m2 output strong{color:var(--vert-fond);font-size:30px;font-weight:500;line-height:1.15}
.tn-calc-m2 output small{font-size:13px;opacity:.85}
.tn-calc-m2>*,.tn-calc-m2 label{min-width:0}.tn-calc-m2 input,.tn-calc-m2 select{width:100%;min-width:0;box-sizing:border-box}

/* eau */
.tn-eau-grille{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:start}
.tn-eau-grille>*{min-width:0}
.tn-debit{padding:36px;display:grid;gap:14px}
.tn-debit output{display:grid;background:var(--encre);color:var(--blanc);border-radius:24px;padding:22px 24px;margin-top:6px}
.tn-debit output strong{font-size:64px;line-height:1;font-weight:500;color:var(--encre);font-variant-numeric:tabular-nums}
.tn-debit output span{margin-top:6px}
.tn-niveau{display:block;height:12px;margin-top:16px;border-radius:6px;border:1px solid var(--vert);overflow:hidden}
.tn-niveau i{display:block;height:100%;background:var(--vert);transition:width .4s}
.tn-chaine{list-style:none;margin:0;padding:0;display:grid;gap:0;position:relative}
.tn-chaine li{display:grid;grid-template-columns:44px 1fr;gap:18px;padding:0 0 22px;position:relative}
.tn-chaine li:not(.tn-chaine-fin):after{content:"";position:absolute;left:21px;top:44px;bottom:0;border-left:2px dashed var(--encre)}
.tn-chaine b{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:var(--trait);background:var(--blanc);font-weight:500;transition:background .3s}
.tn-chaine li.is-actif b{background:var(--vert-fond);box-shadow:0 3px 0 var(--encre)}
.tn-chaine span{font-size:16px;line-height:1.45;padding-top:2px}
.tn-chaine strong{display:block;font-size:19px;font-weight:500}
.tn-chaine small{display:block;font-size:14px;color:var(--encre-2);margin-top:2px}
.tn-chaine-fin{padding-left:62px!important;display:block!important}

/* etat */
.tn-tableau{padding:18px 40px 32px;background:var(--blanc)}
.tn-t-ligne{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:28px;padding:18px 0;border-bottom:1px dashed var(--encre);align-items:start}
.tn-t-entete{font-size:14px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--encre-2);border-bottom:var(--trait)}
.tn-t-vu{display:grid;gap:10px;font-weight:500;font-size:17px}
.tn-t-sol{font-size:17px}
.tn-t-ctrl{font-size:15px;color:var(--encre-2)}
.tn-echelon{display:flex;gap:4px}
.tn-echelon u{display:block;width:22px;height:8px;border-radius:4px;border:var(--trait);background:var(--blanc)}
.tn-echelon u.on{background:var(--encre)}
.tn-t-ligne:last-of-type .tn-echelon u.on{background:var(--vert)}
.tn-t-ligne:not(.tn-t-entete):hover{background:var(--gris);margin-inline:-16px;padding-inline:16px;border-radius:14px}
.tn-alerte{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;line-height:1.45;margin:24px 0 0;background:var(--gris);border:var(--trait);border-radius:20px;padding:16px 20px;font-size:16px}

/* methode */
.tn-sombre{background:var(--encre);color:var(--blanc);border-radius:var(--rayon);box-shadow:0 5px 0 var(--vert);padding:52px;display:grid;gap:40px}
.tn-etapes-cadre{position:relative}
.tn-etapes{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.tn-etapes-fil{position:absolute;left:24px;right:24px;top:23px;height:2px;background:color-mix(in srgb,#fff 25%,#35231d)}
.tn-etapes-fil i{display:block;height:100%;width:100%;background:var(--vert);transform-origin:left center}
.tn-etapes li{display:grid;gap:8px;position:relative}
.tn-etapes b{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:var(--vert-fond);color:var(--encre);font-weight:500}
.tn-etapes strong{font-size:22px;font-weight:500;margin-top:8px}
.tn-etapes span{font-size:16px;line-height:1.45;color:color-mix(in srgb,#fff 80%,#35231d)}
.tn-cas{display:flex;align-items:center;justify-content:space-between;gap:32px;border-top:1px solid color-mix(in srgb,#fff 25%,#35231d);padding-top:30px}
.tn-cas p{margin:0;max-width:62ch;font-size:17px;line-height:1.5}
.tn-cas strong{color:var(--vert-fond);font-weight:500}

/* guides */
.tn-filtres{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:0 auto 30px}
.tn-filtres button{min-height:44px;border:var(--trait);border-radius:14px;background:var(--blanc);padding:8px 16px;font-size:16px;cursor:pointer;color:var(--encre)}
.tn-filtres button small{display:inline-grid;place-items:center;min-width:24px;height:24px;margin-left:6px;border-radius:7px;background:var(--gris);font-size:13px}
.tn-filtres button.is-actif{background:var(--encre);color:var(--blanc)}
.tn-filtres button.is-actif small{background:var(--vert-fond);color:var(--encre)}
.tn-fiches{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.tn-fiche-guide{position:relative;display:flex;flex-direction:column;gap:10px;padding:26px 26px 22px;background:var(--gris);border:var(--trait);border-radius:32px;box-shadow:var(--ombre);text-decoration:none;transition:transform .2s,background .2s}
.tn-fiche-guide:hover{transform:translateY(-4px);background:var(--vert-fond)}
.tn-fiche-guide[hidden]{display:none}
.tn-etiquette{align-self:flex-start;background:var(--blanc);border:var(--trait);border-radius:7px;padding:2px 9px;font-size:13px;font-weight:500}
.tn-fg-num{position:absolute;top:22px;right:26px;font-size:15px;font-weight:500;color:var(--encre-2)}
.tn-fiche-guide h3{font-size:21px;line-height:1.2;margin:6px 0 0}
.tn-fiche-guide p{margin:0;font-size:15px;line-height:1.45;color:var(--encre-2);flex:1}
.tn-fiche-guide>small{font-size:13px;font-weight:500;padding-top:12px;border-top:1px dashed var(--encre)}
.tn-rubriques-cadre{padding-top:44px;text-align:center}
.tn-rubriques{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;text-align:left}
.tn-rubriques a{display:grid;gap:4px;padding:16px 18px;border:var(--trait);border-radius:18px;text-decoration:none;background:var(--blanc);position:relative}
.tn-rubriques a strong{font-weight:500;font-size:16px;padding-right:22px}
.tn-rubriques a span{font-size:13px;line-height:1.35;color:var(--encre-2)}
.tn-rubriques a svg{position:absolute;top:17px;right:14px}
.tn-rubriques a:hover{background:var(--vert-fond)}

/* auteurs : fiches de signature, sans portrait */
.tn-auteurs-grille{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.tn-auteur{display:flex;flex-direction:column;padding:24px 22px 22px;border:var(--trait);border-radius:36px;background:var(--gris);box-shadow:var(--ombre)}
.tn-auteur:nth-child(2){background:var(--vert-fond)}
.tn-auteur-haut{display:flex;align-items:center;justify-content:space-between;margin:0}
.tn-monogramme{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--encre);color:var(--vert-fond);font-size:20px;font-weight:500;letter-spacing:.02em}
.tn-auteur-compte{background:var(--blanc);border:var(--trait);border-radius:7px;padding:2px 9px;font-size:13px}
.tn-auteur-compte b{font-weight:500}
.tn-auteur h3{font-size:21px;margin:18px 0 4px}
.tn-auteur h3 a{text-decoration:none}.tn-auteur h3 a:hover{text-decoration:underline}
.tn-auteur-zone{margin:0 0 14px;font-size:15px;color:var(--encre-2)}
.tn-auteur ul{list-style:none;margin:auto 0 0;padding:0;border-top:var(--trait)}
.tn-auteur li{border-bottom:1px dashed var(--encre)}
.tn-auteur li a{display:block;padding:9px 0;font-size:14.5px;line-height:1.35;text-decoration:none}
.tn-auteur li a:hover{text-decoration:underline;text-decoration-thickness:2px}

/* faq */
.tn-faq-liste{max-width:820px;margin:0 auto;display:grid;gap:14px}
.tn-faq details{border:var(--trait);border-radius:28px;box-shadow:var(--ombre);background:var(--gris);padding:0 28px}
.tn-faq details[open]{background:var(--vert-fond)}
.tn-faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:72px;font-size:20px;font-weight:500}
.tn-faq summary::-webkit-details-marker{display:none}
.tn-faq summary:after{content:"+";display:grid;place-items:center;flex:none;width:40px;height:40px;border-radius:50%;border:var(--trait);background:var(--blanc);font-size:24px;line-height:1}
.tn-faq details[open] summary:after{content:"−"}
.tn-faq details p{margin:0;padding:0 0 24px;font-size:17px;max-width:65ch;border-top:1px solid var(--encre);padding-top:16px}

/* question */
.tn-question{padding-bottom:20px}
.tn-question-grille{display:grid;justify-items:center;gap:30px;max-width:760px;margin:0 auto}
.tn-formulaire{width:100%;padding:34px 38px;background:var(--blanc)}
.tn-champ{display:grid;grid-template-columns:150px 1fr;gap:16px;align-items:baseline;margin:0;padding:15px 0;border-bottom:1px dashed var(--encre)}
.tn-champ span{font-size:14px;font-weight:500;color:var(--encre-2)}
.tn-champ b{font-weight:500;font-size:18px;min-height:1.4em}
.tn-champ b.is-frappe:after{content:"";display:inline-block;width:2px;height:1em;background:var(--encre);margin-left:2px;vertical-align:-2px;animation:tn-curseur .8s steps(1) infinite}
@keyframes tn-curseur{50%{opacity:0}}
.tn-question-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}

/* mobile et tablette */
@media (max-width:980px){
  .tn-hero{grid-template-columns:1fr;gap:40px;min-height:0}
  .tn-scene{justify-self:center;max-width:520px}
  .tn-diag-grille,.tn-prix-grille,.tn-couches-grille,.tn-eau-grille{grid-template-columns:1fr}
  .tn-couches-photo{max-width:460px;margin-inline:auto}
  .tn-fiches{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tn-rubriques{grid-template-columns:repeat(3,minmax(0,1fr))}
  .tn-auteurs-grille{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tn-etapes{grid-template-columns:repeat(2,1fr)}.tn-etapes-fil{display:none}
}
@media (max-width:700px){
  [data-bandeau],.announcement-bar{display:none!important}
  .tn-section{padding-top:68px}
  .tn-tete{margin-bottom:30px}.tn-tete p{font-size:16px}
  .tn-hero{padding-block:16px 40px;gap:30px}
  .tn-hero h1{font-size:clamp(31px,8.6vw,36px);margin-top:14px}
  .tn-kicker{font-size:14px}
  .tn-chapeau{font-size:16px;margin-top:14px}
  .tn-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}
  .tn-actions .button{padding:10px 8px;white-space:normal;text-align:center;line-height:1.2;font-size:15px}
  .tn-reperes{margin-top:20px;gap:8px}.tn-reperes li{font-size:13px;padding:4px 9px}.tn-reperes b{font-size:16px}
  .tn-photo{border-radius:32px}
  .tn-rail{left:10px;top:10px;bottom:10px;width:52px;padding:12px 6px;border-radius:26px}
  .tn-rail button{font-size:0;gap:0;justify-content:center;padding:0}
  .tn-rail-fil{left:25px}.tn-goutte{left:20px}
  .tn-rail button b{width:30px;height:30px}
  .tn-pt span{width:28px;height:28px;font-size:13px}
  .tn-legende-zone{margin-top:16px;padding:0}
  .tn-zone-haut .tn-lien{margin-left:0;flex-basis:100%;order:3}
  .tn-zone-fait{font-size:15px}
  .tn-repere{font-size:12px;padding:2px 7px}
  .tn-diag-grille,.tn-prix-grille{padding:20px;gap:24px;border-radius:32px}
  .tn-diag-choix button{font-size:15px;min-height:54px}
  .tn-diag-choix button.is-actif{transform:none}
  .tn-diag-fiche{padding:20px;border-radius:24px}
  .tn-diag-fiche dl div{grid-template-columns:1fr;gap:4px}
  .tn-couche a{grid-template-columns:36px 1fr 18px;gap:12px;padding:14px 16px}
  .tn-couche b{font-size:21px}.tn-couche strong{font-size:17px}
  .tn-jauge p{flex-direction:column;gap:2px}.tn-jauge small{text-align:left}.tn-barre{height:52px}.tn-b-p em,.tn-jauge:last-of-type .tn-b-p em{left:0;right:auto;top:calc(100% + 4px);transform:none;color:var(--encre)}
  .tn-debit{padding:22px;border-radius:32px}.tn-debit output strong{font-size:52px}
  .tn-tableau{padding:10px 20px 22px;border-radius:32px}
  .tn-t-entete{display:none}
  .tn-t-ligne{grid-template-columns:1fr;gap:6px}
  .tn-t-sol:before{content:"Solution : ";font-weight:500}
  .tn-t-ctrl:before{content:"À contrôler : ";font-weight:500;color:var(--encre)}
  .tn-sombre{padding:28px 22px;border-radius:32px}
  .tn-etapes{grid-template-columns:1fr;gap:20px}
  .tn-cas{flex-direction:column;align-items:flex-start}
  .tn-fiches{grid-template-columns:1fr;gap:12px}
  .tn-fiche-guide{padding:16px 18px 14px;border-radius:22px;gap:6px}.tn-fiche-guide p{display:none}.tn-fiche-guide h3{font-size:18px;margin:2px 0 0}.tn-fg-num{top:16px;right:18px}.tn-fiche-guide>small{padding-top:8px}
  .tn-rubriques{grid-template-columns:1fr}
  .tn-auteurs-grille{gap:14px}
  .tn-auteurs-grille{grid-template-columns:1fr}
  .tn-auteur{padding:20px 20px 16px;border-radius:28px}
  .tn-faq details{padding:0 20px}.tn-faq summary{font-size:17px;min-height:64px}
  .tn-formulaire{padding:20px 22px}
  .tn-champ{grid-template-columns:1fr;gap:4px}
  .tn-question-actions{display:grid;grid-template-columns:1fr;width:100%}
}
@media (prefers-reduced-motion:reduce){
  .tn-pt.is-actif:before{animation:none}
  .tn-goutte,.tn-rail-fil i,.tn-niveau i,.tn-zone-txt{transition:none}
  .tn-champ b.is-frappe:after{animation:none}
}

/* en-tête, avant-pied et pied de page vus depuis la home : même main que les sections */
.news-strip{position:relative}
.news-strip .news-label{position:relative;z-index:3;align-self:stretch;height:auto;line-height:1;padding:0 14px;background:var(--green,#c34b22);box-shadow:8px 0 0 var(--dark,#35231d);text-decoration:none}
.news-strip .news-viewport{position:relative;z-index:1}
body .uf-block{width:min(100% - 32px,1100px);max-width:1100px;border-radius:45px;border:1px solid #35231d;box-shadow:0 5px 0 #35231d;margin-top:96px}
body .uf-block .about-banner{grid-template-columns:200px 1fr auto;background:#c34b22}
body .uf-block .about-banner .brand-name{position:relative;display:block;width:190px;height:46px;color:transparent;font-size:0;overflow:hidden}
body .uf-block .about-banner .brand-name:before{content:"";position:absolute;inset:0;background:url("/assets/isb-formation-fr/logo.svg") left center/contain no-repeat;filter:brightness(0)}
body .uf-block .dark-button{background:#35231d;border-radius:15px;min-height:48px;padding:12px 22px}
body .site-footer{width:min(100% - 32px,1100px);row-gap:0;padding:52px 60px 30px;align-items:start}
body .site-footer .footer-brand p{margin:20px 0 24px}
body .site-footer .footer-links h2{margin:0 0 6px}
body .site-footer>p{margin-top:40px!important;padding-top:20px!important;border-top:1px solid color-mix(in srgb,#fff 18%,#35231d)}
/* blocs ajoutés : prestations, lexique, rubriques, quiz, portraits */
.tn-home .tn-ico{display:grid;place-items:center;flex:none;width:48px;height:48px;border-radius:50%;background:var(--vert-fond);border:var(--trait);color:var(--encre)}
.tn-home .tn-ico svg{width:22px;height:22px}
.tn-presta-liste,.tn-rub-liste{display:grid;gap:12px}
.tn-presta-liste a,.tn-rub-liste a{display:grid;grid-template-columns:48px minmax(0,260px) minmax(0,1fr) auto;align-items:center;gap:20px;padding:16px 24px;border:var(--trait);border-radius:24px;background:var(--gris);box-shadow:0 4px 0 var(--encre);text-decoration:none;transition:transform .2s}
.tn-rub-liste a{grid-template-columns:48px minmax(0,260px) minmax(0,1fr) auto auto;background:var(--blanc)}
.tn-presta-liste a:hover,.tn-rub-liste a:hover{transform:translateY(-3px);background:var(--vert-fond)}
.tn-presta-liste strong,.tn-rub-liste strong{font-size:19px;font-weight:500}
.tn-presta-liste span:not(.tn-ico),.tn-rub-desc{font-size:15.5px;line-height:1.45;color:var(--encre-2)}
.tn-rub-liste small{font-size:14px;font-weight:500;background:var(--gris);border:var(--trait);border-radius:7px;padding:2px 9px;white-space:nowrap}
.tn-lex{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:0}
.tn-lex>div{padding:24px 28px;border-radius:28px}
.tn-lex dt{display:flex;align-items:center;gap:14px;font-size:20px;font-weight:500}
.tn-lex dd{margin:12px 0 0;font-size:16px;line-height:1.5;color:var(--encre-2)}
.tn-quiz-carte{padding:36px 40px;max-width:900px}
.tn-guides-tout{margin:32px 0 0;text-align:center}
.tn-auteur-photo{width:56px;height:56px;border-radius:50%;object-fit:cover;border:var(--trait)}
.tn-champ span{display:inline-flex;align-items:center;gap:8px}
.tn-home .button svg{width:18px;height:18px;margin-right:8px;vertical-align:-3px}
.tn-etapes{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 48px}.tn-etapes-fil{display:none}
@media (max-width:980px){.tn-presta-liste a,.tn-rub-liste a{grid-template-columns:48px minmax(0,1fr) auto}.tn-presta-liste span:not(.tn-ico),.tn-rub-desc{grid-column:2/-1}.tn-rub-liste small{grid-column:2}}
@media (max-width:700px){
  .tn-home{--col:calc(100% - 20px)}
  .tn-lex{grid-template-columns:1fr}
  .tn-lex>div{padding:20px 18px}
  .tn-presta-liste a,.tn-rub-liste a{grid-template-columns:1fr;padding:16px 14px;gap:10px}
  .tn-presta-liste span:not(.tn-ico),.tn-rub-desc,.tn-rub-liste small{grid-column:auto}
  .tn-presta-liste a>svg:last-child,.tn-rub-liste a>svg:last-child{display:none}
  .tn-quiz-carte{padding:20px 14px}
  .tn-diag-grille{padding:12px}
  .tn-diag-choix button{padding:10px 12px}
  .tn-diag-choix button b{display:none}
  .tn-couche a{grid-template-columns:1fr;padding:14px}
  .tn-couche a>b,.tn-couche a>svg{display:none}
  .tn-etapes{grid-template-columns:1fr}
  .tn-sombre{padding:28px 16px}
}
@media (max-width:600px){body .uf-block{border-radius:32px;width:calc(100% - 32px)}body .uf-block .about-banner{grid-template-columns:1fr}body .site-footer{padding:40px 24px 26px}}
[data-usine-bloc="eau"] .tn-debit output strong{color:inherit}
@media (min-width:1000px){[data-usine-bloc="guides"] .tn-fiches{grid-template-columns:repeat(2,minmax(0,1fr))}}
/* guides en magazine : une grande carte à la une, puis cinq petites (3 col : 2x2 + 5 = 9 cases) */
[data-usine-bloc="guides"] .tn-fiche-une{background:var(--vert-fond)}
[data-usine-bloc="guides"] .tn-fiche-une h3{font-size:clamp(24px,2.6vw,32px)}
[data-usine-bloc="guides"] .tn-fiche-une p{font-size:17px}
@media (min-width:1000px){[data-usine-bloc="guides"] .tn-fiches{grid-template-columns:repeat(3,minmax(0,1fr))}[data-usine-bloc="guides"] .tn-fiches{column-gap:18px}[data-usine-bloc="guides"] .tn-fiche-guide{padding:24px 18px 20px}[data-usine-bloc="guides"] .tn-fiche-guide .tn-fg-num{right:18px}[data-usine-bloc="guides"] .tn-fiche-une{grid-column:span 2;grid-row:span 2;padding:40px 40px 30px}}
@media (min-width:701px) and (max-width:999px){[data-usine-bloc="guides"] .tn-fiches{grid-template-columns:repeat(2,minmax(0,1fr))}[data-usine-bloc="guides"] .tn-fiche-une,[data-usine-bloc="guides"] .tn-fiche-guide:last-child{grid-column:1/-1}}
@media (min-width:1000px){.tn-lex{grid-template-columns:repeat(3,minmax(0,1fr))}}
.tn-quiz-carte{margin-inline:auto}
.tn-rub-liste a{min-height:44px}
@media (max-width:700px){[data-usine-bloc="guides"] .tn-fiche-une p{display:block}.tn-guides-tout .button{min-height:44px}}