:root {
  --encre: #0b1630;
  --texte: #2a3550;
  --doux: #5d6884;
  --fond: #f7f6f2;
  --carte: #ffffff;
  --ligne: #e3e1da;
  --bleu: #1f5eff;
  --bleu-fonce: #1446c7;
  --bleu-pale: #e8eeff;
  --or: #c9a24a;
  --vert: #15803d;
  --rayon: 18px;
  --ombre: 0 1px 2px rgba(11, 22, 48, .06), 0 8px 24px rgba(11, 22, 48, .06);
  --titre: "Fraunces", Georgia, "Times New Roman", serif;
  --corps: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*, *::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: 17px/1.65 var(--corps); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--bleu); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--titre); color: var(--encre); line-height: 1.15; letter-spacing: -.01em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.1rem, 5.4vw, 3.6rem); font-weight: 600; }
h1 em { font-style: italic; color: var(--bleu); font-weight: 500; }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.4rem); font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; font-family: var(--corps); letter-spacing: 0; }
p { margin: 0 0 1em; }
.conteneur { width: min(1140px, 100% - 32px); margin-inline: auto; }
.etroit { width: min(780px, 100% - 32px); margin-inline: auto; }
.section { padding: clamp(56px, 8vw, 96px) 0; }
.section.blanc { background: var(--carte); border-block: 1px solid var(--ligne); }
.section.sombre { background: var(--encre); color: #c9d2e8; }
.section.sombre h2, .section.sombre h3 { color: #fff; }
.surtitre { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--bleu); margin-bottom: 12px; }
.chapeau { font-size: 1.15rem; color: var(--doux); max-width: 680px; }
.centre { text-align: center; }
.centre .chapeau { margin-inline: auto; }

/* En-tête */
.entete { position: sticky; top: 0; z-index: 50; background: rgba(247, 246, 242, .92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--ligne); }
.entete .conteneur { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--encre); font-weight: 700; font-size: 1.05rem; }
.logo svg { width: 34px; height: 34px; flex: none; }
.logo small { display: block; font-weight: 500; font-size: .72rem; color: var(--doux); letter-spacing: .04em; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--texte); text-decoration: none; font-weight: 500; font-size: .95rem; }
.nav a:hover { color: var(--bleu); }
.menu-bouton { display: none; background: none; border: 1px solid var(--ligne); border-radius: 10px; padding: 8px 10px; font: inherit; color: var(--encre); cursor: pointer; }
@media (max-width: 920px) {
  .menu-bouton { display: block; }
  .nav { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--carte); border-bottom: 1px solid var(--ligne); padding: 8px 16px 16px; }
  .nav.ouvert { display: flex; }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--ligne); }
  .nav .bouton { margin-top: 12px; text-align: center; }
}

/* Boutons */
.bouton { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 24px; border-radius: 999px; font-weight: 600; text-decoration: none; border: 0; cursor: pointer; font: 600 1rem var(--corps); transition: transform .15s, background .15s; }
.bouton:hover { transform: translateY(-1px); }
.bouton.plein { background: var(--bleu); color: #fff !important; }
.bouton.plein:hover { background: var(--bleu-fonce); }
.bouton.contour { background: transparent; color: var(--encre) !important; border: 1.5px solid var(--encre); }
.bouton.blanc { background: #fff; color: var(--encre) !important; }
.bouton.petit { padding: 10px 18px; font-size: .92rem; }
.boutons { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Héros */
.heros { padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 72px); background: radial-gradient(900px 420px at 85% 0%, #dfe7ff 0%, transparent 70%), var(--fond); }
.heros .grille { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
@media (max-width: 920px) { .heros .grille { grid-template-columns: 1fr; } }
.ariane { font-size: .85rem; color: var(--doux); margin-bottom: 18px; }
.ariane a { color: var(--doux); }
.puces-heros { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 10px; }
.puces-heros li { display: flex; gap: 10px; align-items: flex-start; }
.puces-heros li::before { content: ""; flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 50%; background: var(--bleu-pale) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231f5eff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/13px no-repeat; }
.carte-heros { background: var(--encre); color: #d5dcf0; border-radius: 26px; padding: 30px; box-shadow: 0 30px 60px rgba(11, 22, 48, .25); position: relative; overflow: hidden; }
.carte-heros::after { content: ""; position: absolute; inset: auto -60px -80px auto; width: 240px; height: 240px; border-radius: 50%; background: radial-gradient(circle, rgba(31, 94, 255, .55), transparent 70%); }
.carte-heros h2 { color: #fff; font-size: 1.5rem; }
.carte-heros dl { display: grid; gap: 14px; margin: 18px 0 0; position: relative; z-index: 1; }
.carte-heros dl div { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 12px; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.carte-heros dt { color: #aab5d3; }
.carte-heros dd { margin: 0; color: #fff; font-weight: 600; text-align: right; }

/* Bandeau d'engagements */
.engagements { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--ligne); border: 1px solid var(--ligne); border-radius: var(--rayon); overflow: hidden; }
.engagements div { background: var(--carte); padding: 22px; }
.engagements strong { display: block; color: var(--encre); font-size: 1.05rem; margin-bottom: 4px; }
.engagements span { color: var(--doux); font-size: .92rem; }
@media (max-width: 820px) { .engagements { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .engagements { grid-template-columns: 1fr; } }

/* Grilles de cartes */
.grille-cartes { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; margin-top: 36px; }
.carte { background: var(--carte); border: 1px solid var(--ligne); border-radius: var(--rayon); padding: 26px; box-shadow: var(--ombre); }
.carte p:last-child { margin-bottom: 0; }
.carte .icone { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--bleu-pale); color: var(--bleu); margin-bottom: 16px; }
.carte .icone svg { width: 22px; height: 22px; }
a.carte { text-decoration: none; color: inherit; transition: border-color .15s, transform .15s; }
a.carte:hover { border-color: var(--bleu); transform: translateY(-2px); }
a.carte .lire { color: var(--bleu); font-weight: 600; font-size: .95rem; }

/* Étapes */
.etapes { counter-reset: e; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 36px; }
.etapes li { list-style: none; counter-increment: e; background: var(--carte); border: 1px solid var(--ligne); border-radius: var(--rayon); padding: 24px; }
.etapes li::before { content: counter(e, decimal-leading-zero); display: block; font: 600 2rem var(--titre); color: var(--bleu); margin-bottom: 8px; }
.etapes { padding: 0; }
@media (max-width: 860px) { .etapes { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .etapes { grid-template-columns: 1fr; } }

/* Comparatif */
.tableau { width: 100%; border-collapse: collapse; margin-top: 32px; background: var(--carte); border-radius: var(--rayon); overflow: hidden; box-shadow: var(--ombre); font-size: .97rem; }
.tableau th, .tableau td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--ligne); vertical-align: top; }
.tableau thead th { background: var(--encre); color: #fff; font-weight: 600; }
.tableau td.nous { color: var(--encre); font-weight: 600; background: #f3f6ff; }
.defile { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Formules */
.formules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; align-items: stretch; }
@media (max-width: 900px) { .formules { grid-template-columns: 1fr; } }
.formule { background: var(--carte); border: 1px solid var(--ligne); border-radius: 22px; padding: 30px; display: flex; flex-direction: column; box-shadow: var(--ombre); }
.formule.vedette { border: 2px solid var(--bleu); position: relative; }
.formule.vedette::before { content: "La plus choisie"; position: absolute; top: -13px; left: 30px; background: var(--bleu); color: #fff; font-size: .78rem; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.formule .taux { font: 600 2.8rem/1 var(--titre); color: var(--encre); margin: 10px 0 4px; }
.formule .taux small { font: 500 1rem var(--corps); color: var(--doux); }
.formule ul { padding: 0; margin: 18px 0 24px; list-style: none; display: grid; gap: 8px; flex: 1; }
.formule li { padding-left: 26px; position: relative; font-size: .97rem; }
.formule li::before { content: "✓"; position: absolute; left: 0; color: var(--vert); font-weight: 700; }
.note { font-size: .88rem; color: var(--doux); margin-top: 18px; }

/* Situations */
.situations { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; margin-top: 36px; }
.situations .carte h3 { margin-bottom: 8px; }
.etiquette { display: inline-block; font-size: .78rem; font-weight: 700; color: var(--bleu); background: var(--bleu-pale); border-radius: 999px; padding: 3px 10px; margin-bottom: 12px; }

/* Zones */
.zones { columns: 4 200px; column-gap: 24px; margin-top: 28px; padding: 0; list-style: none; }
.zones li { break-inside: avoid; padding: 5px 0; }
.zones a { color: var(--texte); text-decoration: none; }
.zones a:hover { color: var(--bleu); text-decoration: underline; }

/* Texte long */
.prose h2 { margin-top: 1.6em; font-size: clamp(1.4rem, 3vw, 1.9rem); }
.prose h3 { margin-top: 1.4em; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }
.encadre { background: var(--bleu-pale); border-left: 4px solid var(--bleu); border-radius: 0 12px 12px 0; padding: 18px 22px; margin: 24px 0; }
.encadre p:last-child { margin: 0; }

/* FAQ */
.faq { margin-top: 32px; display: grid; gap: 12px; }
.faq details { background: var(--carte); border: 1px solid var(--ligne); border-radius: 14px; padding: 4px 22px; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--encre); padding: 16px 0; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--bleu); }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--texte); }

/* Formulaire */
.bloc-formulaire { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
@media (max-width: 900px) { .bloc-formulaire { grid-template-columns: 1fr; } }
form.formulaire { background: var(--carte); border: 1px solid var(--ligne); border-radius: 22px; padding: 28px; box-shadow: var(--ombre); display: grid; gap: 14px; color: var(--texte); }
.champs-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 520px) { .champs-2 { grid-template-columns: 1fr; } }
form label { display: grid; gap: 6px; font-weight: 600; font-size: .92rem; color: var(--encre); }
form input, form select, form textarea { font: 400 1rem var(--corps); padding: 12px 14px; border: 1.5px solid var(--ligne); border-radius: 12px; background: #fff; color: var(--encre); width: 100%; }
form input:focus, form select:focus, form textarea:focus { outline: none; border-color: var(--bleu); box-shadow: 0 0 0 3px var(--bleu-pale); }
form .accord { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: .88rem; color: var(--doux); }
form .accord input { width: auto; margin-top: 4px; }
form .piege { position: absolute; left: -9999px; }
form .erreur { color: #b91c1c; font-size: .82rem; font-weight: 500; }
.retour { padding: 14px 16px; border-radius: 12px; font-weight: 500; display: none; }
.retour.ok { display: block; background: #e8f6ee; color: var(--vert); }
.retour.ko { display: block; background: #fdecec; color: #b91c1c; }
.contact-direct { display: grid; gap: 12px; margin-top: 24px; }
.contact-direct a { display: flex; gap: 12px; align-items: center; text-decoration: none; color: var(--encre); font-weight: 600; background: var(--carte); border: 1px solid var(--ligne); border-radius: 14px; padding: 14px 18px; }
.section.sombre .contact-direct a { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .14); color: #fff; }

/* Pied de page */
.pied { background: var(--encre); color: #aab5d3; padding: 64px 0 32px; font-size: .93rem; }
.pied .colonnes { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 860px) { .pied .colonnes { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .pied .colonnes { grid-template-columns: 1fr; } }
.pied h3 { color: #fff; font-size: .95rem; margin-bottom: 12px; }
.pied ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.pied a { color: #aab5d3; text-decoration: none; }
.pied a:hover { color: #fff; }
.pied .bas { border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 40px; padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.pied .logo { color: #fff; }
.pied .logo small { color: #aab5d3; }

/* Bouton d'appel flottant (mobile) */
.flottant { position: fixed; right: 16px; bottom: 16px; z-index: 60; display: none; gap: 10px; }
.flottant a { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; box-shadow: 0 10px 24px rgba(0, 0, 0, .25); }
.flottant a svg { width: 26px; height: 26px; }
.flottant .wa { background: #25d366; color: #fff; }
.flottant .tel { background: var(--bleu); color: #fff; }
@media (max-width: 920px) { .flottant { display: flex; } }

.visuel { border-radius: 26px; overflow: hidden; box-shadow: 0 30px 60px rgba(11, 22, 48, .18); aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }

/* Visuels */
.visuel-heros { position: relative; padding-bottom: 170px; }
.visuel-heros .visuel { aspect-ratio: 4 / 3; }
.carte-heros.superposee { position: absolute; left: -32px; right: 32px; bottom: 0; padding: 20px 24px; }
.carte-heros.superposee h2 { font-size: 1.15rem; margin-bottom: 4px; }
.carte-heros.superposee dl { grid-template-columns: 1fr 1fr; gap: 8px 20px; margin-top: 10px; }
.carte-heros.superposee dl div { padding-bottom: 8px; flex-direction: column; gap: 0; }
.carte-heros.superposee dd { text-align: left; }
@media (max-width: 920px) {
  .visuel-heros { padding-bottom: 0; }
  .carte-heros.superposee { position: relative; left: auto; right: auto; margin: -48px 12px 0; }
}
.duo-images { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 640px) { .duo-images { grid-template-columns: 1fr; } }

/* En-tête de l'accueil sur vidéo */
.heros.avec-video { position: relative; overflow: hidden; background: var(--encre); padding-bottom: clamp(80px, 10vw, 120px); min-height: min(86vh, 760px); display: flex; align-items: center; }
.heros.avec-video .conteneur { position: relative; z-index: 1; }
.fond-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.voile { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11, 22, 48, .88) 0%, rgba(11, 22, 48, .62) 50%, rgba(11, 22, 48, .25) 100%); }
.heros.avec-video h1, .heros.avec-video .puces-heros { color: #fff; }
.heros.avec-video h1 em { color: #8fb0ff; }
.heros.avec-video .chapeau { color: #d5dcf0; }
.heros.avec-video .bouton.contour { color: #fff !important; border-color: rgba(255, 255, 255, .7); }
.heros.avec-video .puces-heros li::before { background-color: rgba(255, 255, 255, .9); }
.heros.avec-video .carte-heros { background: rgba(11, 22, 48, .72); backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, .14); }
@media (max-width: 920px) {
  .heros.avec-video { display: flex; align-items: flex-end; min-height: calc(100svh - 68px); padding: 0 0 72px; }
  .heros.avec-video .fond-video { object-position: 50% 30%; }
  .heros.avec-video .voile { background: linear-gradient(180deg, rgba(11, 22, 48, .15) 0%, rgba(11, 22, 48, 0) 40%, rgba(11, 22, 48, .6) 60%, rgba(11, 22, 48, .95) 78%, rgba(11, 22, 48, 1) 100%); }
  .heros.avec-video .puces-heros, .heros.avec-video .carte-heros, .heros.avec-video .chapeau { display: none; }
  .heros.avec-video h1 em { color: #c7d6ff; }
  .heros.avec-video h1 { text-shadow: 0 2px 18px rgba(0, 0, 0, .35); }
}
@media (prefers-reduced-motion: reduce) { .fond-video { display: none; } .heros.avec-video { background: var(--encre) url("/media/salon-paris-700.webp") center/cover; } }