:root {
  --encre: #0c1f1c;
  --texte: #33423f;
  --doux: #64736f;
  --fond: #ffffff;
  --sable: #f4f6f2;
  --ligne: #e1e7e2;
  --vert: #0f3d36;
  --vert-clair: #1a5a4f;
  --citron: #c9f26b;
  --citron-fonce: #b4e04e;
  --rayon: 18px;
  --sans: "Segoe UI Variable Display", "Segoe UI", -apple-system, BlinkMacSystemFont, "SF Pro Display", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ombre: 0 1px 2px rgba(12, 31, 28, .04), 0 12px 32px rgba(12, 31, 28, .07);
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--fond); color: var(--texte); font: 400 17px/1.65 var(--sans); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; }
a { color: var(--vert-clair); text-underline-offset: 3px; }
h1, h2, h3 { color: var(--encre); line-height: 1.12; font-weight: 650; letter-spacing: -.022em; }
h1 { font-size: clamp(2.3rem, 5.6vw, 4rem); margin: 0 0 .45em; letter-spacing: -.03em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); margin: 1.5em 0 .55em; }
h3 { font-size: 1.2rem; margin: 1.4em 0 .4em; letter-spacing: -.01em; }
.largeur { width: min(1180px, 100%); margin-inline: auto; padding-inline: 22px; }
.etroit { width: min(760px, 100%); }
.section { padding-block: 72px; }
.section > h2:first-child { margin-top: 0; }
.fond { background: var(--sable); }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }
.evitement { position: absolute; left: -999px; }
.evitement:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 30; }
:focus-visible { outline: 3px solid var(--vert-clair); outline-offset: 2px; border-radius: 6px; }

/* En-tête */
.entete { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, .86); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid rgba(225, 231, 226, .7); }
.entete-int { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 74px; }
.logo { font: 700 1.5rem/1 var(--sans); letter-spacing: .02em; color: var(--encre); text-decoration: none; display: inline-flex; align-items: center; gap: 10px; margin: 0; }
.logo::before { content: ""; width: 12px; height: 12px; border-radius: 50%; background: var(--citron-fonce); box-shadow: 0 0 0 4px rgba(201, 242, 107, .3); }
.logo span { position: absolute; left: -9999px; }
.logo-clair { color: #fff; }
nav ul { list-style: none; margin: 0; padding: 0; }
#menu > ul { display: flex; align-items: center; gap: 24px; }
#menu a:not(.bouton), .deroulant > button { color: var(--encre); text-decoration: none; font: 500 .96rem var(--sans); background: none; border: 0; cursor: pointer; padding: 6px 0; }
#menu a:not(.bouton):hover, .deroulant > button:hover { color: var(--vert-clair); }
.deroulant { position: relative; }
.deroulant ul { display: none; position: absolute; top: 100%; left: -18px; width: 320px; background: #fff; border: 1px solid var(--ligne); border-radius: var(--rayon); padding: 10px 18px; box-shadow: var(--ombre); }
.deroulant:hover ul, .deroulant:focus-within ul { display: block; }
.deroulant ul a { display: block; }
.menu-bouton { display: none; }

/* Boutons */
.bouton { display: inline-block; background: var(--citron); color: var(--encre); border: 0; border-radius: 999px; padding: 14px 26px; font: 650 1rem var(--sans); text-decoration: none; cursor: pointer; transition: background .15s, transform .15s; }
.bouton:hover { background: var(--citron-fonce); transform: translateY(-1px); }
.bouton:disabled { opacity: .6; cursor: default; transform: none; }
.bouton.fonce { background: var(--vert); color: #fff; }
.bouton.fonce:hover { background: var(--vert-clair); }
.bouton.secondaire { background: transparent; color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .45); margin-left: 8px; }
.bouton.secondaire:hover { background: rgba(255, 255, 255, .1); }
.bouton.discret { background: var(--sable); color: var(--encre); }
.bouton.petit { padding: 10px 18px; font-size: .92rem; }
#menu a.bouton { color: var(--encre); }

/* Héros */
.heros { background: radial-gradient(1100px 500px at 85% -10%, #1f6b5d 0%, transparent 60%), var(--vert); color: #dbe7e2; padding-block: 96px; }
.heros h1 { color: #fff; max-width: 15em; }
.heros.petit { padding-block: 64px; }
.heros.petit h1 { margin-bottom: .3em; font-size: clamp(2rem, 4.4vw, 3.1rem); }
.heros-grille { display: grid; grid-template-columns: 1.35fr .85fr; gap: 56px; align-items: center; }
.surtitre { font-size: .9rem; font-weight: 600; color: var(--citron); margin: 0 0 16px; }
.chapo { font-size: 1.2rem; max-width: 36em; }
.heros-carte { background: #fff; color: var(--texte); border-radius: 24px; padding: 30px; box-shadow: 0 30px 60px rgba(0, 0, 0, .25); }
.heros-carte h2 { font-size: 1.4rem; margin: 0 0 .5em; }
.heros-carte ol { list-style: none; counter-reset: e; padding: 0; margin: 0 0 22px; }
.heros-carte li { counter-increment: e; display: flex; gap: 12px; align-items: flex-start; padding: 9px 0; font-size: .97rem; }
.heros-carte li::before { content: counter(e); flex: 0 0 28px; height: 28px; border-radius: 50%; background: var(--sable); color: var(--encre); font-weight: 650; font-size: .85rem; display: grid; place-items: center; }
.heros-carte .bouton { display: block; text-align: center; background: var(--vert); color: #fff; }

/* Cartes */
.grille { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; }
.grille.deux { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.carte { display: block; background: #fff; border: 1px solid var(--ligne); border-radius: var(--rayon); padding: 26px; color: var(--texte); text-decoration: none; transition: transform .18s, box-shadow .18s, border-color .18s; }
.carte:hover { transform: translateY(-3px); box-shadow: var(--ombre); border-color: transparent; }
.carte h3 { margin-top: 0; }
.carte p { margin: 0; font-size: .95rem; color: var(--doux); }
.pastilles { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; padding: 0; }
.pastilles a { display: block; padding: 7px 16px; background: var(--sable); border-radius: 999px; text-decoration: none; color: var(--encre); font-size: .95rem; }
.pastilles a:hover { background: var(--ligne); }
.liens-suite { margin-top: 12px; }

/* Tableaux */
.tableau { overflow-x: auto; margin: 1.2em 0; border: 1px solid var(--ligne); border-radius: 14px; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { border-bottom: 1px solid var(--ligne); padding: 11px 14px; text-align: left; vertical-align: top; }
tr:last-child td { border-bottom: 0; }
th { background: var(--sable); color: var(--encre); font-weight: 600; }
.nombre { text-align: right; white-space: nowrap; }

/* FAQ */
details { border-bottom: 1px solid var(--ligne); padding: 16px 0; }
summary { cursor: pointer; font-weight: 600; color: var(--encre); list-style-position: outside; }

/* Fil d'Ariane */
.fil ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 12px 22px; margin: 0; font-size: .85rem; color: var(--doux); }
.fil li + li::before { content: "/"; margin-right: 6px; }
.fil a { color: var(--doux); }

/* Formulaires */
.bandeau-form { background: var(--sable); padding-block: 72px; }
.form-grille { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; }
.bandeau-form h2 { margin-top: 0; }
.formulaire { display: grid; gap: 16px; background: #fff; border-radius: var(--rayon); padding: 28px; box-shadow: var(--ombre); }
.formulaire label { display: grid; gap: 6px; font-size: .93rem; font-weight: 600; color: var(--encre); }
.formulaire input, .formulaire select, .formulaire textarea { font: 400 1rem var(--sans); padding: 12px 14px; border: 1px solid #c8d1cb; border-radius: 12px; background: #fff; width: 100%; }
.formulaire input:focus, .formulaire select:focus, .formulaire textarea:focus { outline: 2px solid var(--vert-clair); outline-offset: 0; border-color: transparent; }
.formulaire small { font-weight: 400; color: var(--doux); font-size: .8rem; }
.formulaire label.case { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.formulaire label.case input { width: auto; margin-top: 5px; }
.alerte { background: #fbe9e7; color: #8c2f1b; padding: 12px 14px; border-radius: 12px; }
.alerte[hidden] { display: none; }
.mention { font-size: .8rem; color: var(--doux); margin: 0; }
.piege { position: absolute; left: -9999px; }

/* Devis */
.devis { width: min(760px, 100%); margin-inline: auto; padding-inline: 22px; padding-block: 56px 80px; }
.progres { font-size: .9rem; font-weight: 600; color: var(--vert-clair); margin: 0 0 12px; }
.etape[hidden] { display: none; }
.etape { display: grid; gap: 16px; }
.etape h2 { margin: 0; font-size: 1.5rem; }
.boutons { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; margin-top: 6px; }
.choix { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; border: 0; padding: 0; margin: 0; }
.choix legend { font-weight: 600; font-size: .93rem; color: var(--encre); margin-bottom: 8px; padding: 0; }
.choix label { display: flex; gap: 10px; align-items: center; border: 1px solid #c8d1cb; border-radius: 12px; padding: 12px 14px; font-weight: 500; cursor: pointer; }
.choix label:has(input:checked) { border-color: var(--vert-clair); background: #edf6f1; }
.choix input { width: auto; }
.proposition { background: #fff; border-radius: var(--rayon); box-shadow: var(--ombre); padding: 32px; }
.proposition h2 { margin-top: 0; }
.total { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 20px; padding: 14px 0; border-top: 1px solid var(--ligne); font-weight: 600; color: var(--encre); }
.total[hidden] { display: none; }
.etat { display: block; font-weight: 500; }
.etat.ok { color: var(--vert-clair); }
.etat.ko { color: #8c2f1b; }

/* Pied */
.pied { background: var(--encre); color: #a9b8b3; padding-top: 64px; font-size: .93rem; }
.pied a { color: #fff; }
.pied h3 { color: #fff; margin-top: 0; font-size: 1rem; }
.pied-grille { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 32px; }
.pied-bas { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; border-top: 1px solid rgba(255, 255, 255, .13); margin-top: 40px; padding-block: 20px; }
.pied-bas p { margin: 0; }
.pied-bas ul { list-style: none; display: flex; flex-wrap: wrap; gap: 18px; margin: 0; padding: 0; }
.lien { background: none; border: 0; padding: 0; color: #fff; text-decoration: underline; font: inherit; cursor: pointer; }

/* Bandeau cookies */
.cookies { position: fixed; inset: auto 16px 16px 16px; z-index: 40; display: flex; justify-content: center; }
.cookies[hidden] { display: none; }
.cookies-int { background: #fff; border-radius: var(--rayon); box-shadow: 0 16px 48px rgba(12, 31, 28, .28); padding: 22px 26px; width: min(640px, 100%); }
.cookies h2 { font-size: 1.15rem; margin: 0 0 .4em; }
.cookies p { font-size: .9rem; margin: 0 0 12px; }
.cookies-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; }
.cookies-actions .bouton { flex: 1 1 160px; background: var(--vert); color: #fff; padding: 11px 18px; }

/* Aperçu : valeur à compléter */
.manque { background: #ffe58a; color: #5a4300; padding: 0 4px; border-radius: 3px; font-size: .9em; }

@media (max-width: 960px) {
  .menu-bouton { display: inline-block; background: var(--sable); border: 0; border-radius: 999px; padding: 9px 16px; font: 600 .95rem var(--sans); color: var(--encre); }
  #menu { display: none; position: absolute; left: 0; right: 0; top: 100%; background: #fff; border-bottom: 1px solid var(--ligne); padding: 14px 22px; max-height: calc(100vh - 74px); overflow: auto; }
  #menu.ouvert { display: block; }
  #menu > ul { flex-direction: column; align-items: stretch; gap: 8px; }
  .deroulant ul { position: static; display: none; width: auto; box-shadow: none; border: 0; padding: 0 0 0 10px; }
  .deroulant:hover ul, .deroulant:focus-within ul { display: none; }
  .deroulant.ouvert ul { display: block; }
  .form-grille, .pied-grille, .heros-grille { grid-template-columns: 1fr; gap: 32px; }
  .bouton.secondaire { margin: 10px 0 0; }
  .heros { padding-block: 60px; }
  .section, .bandeau-form { padding-block: 52px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .bouton, .carte { transition: none; } }
@media print {
  .entete, .pied, .fil, .boutons, .cookies, .evitement { display: none !important; }
  .proposition { box-shadow: none; padding: 0; }
  body { font-size: 12pt; }
}