/* Vitrine publique (page d'accueil, cahier 5.76) : mise en page propre, sans le menu de gauche de l'application. */
:root {
    --marine: #0d2740; --bleu: #1f6fb2; --bleu-fonce: #17558a; --ciel: #e6f0fa; --fond: #f4f7fb;
    --encre: #14202c; --discret: #546273; --filet: #dde5ee; --sauge: #2f8a78; --ambre: #d9962b;
    --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
body.vitrine { margin: 0; font: 17px/1.55 var(--sans); color: var(--encre); background: #fff; }
a { color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible { outline: 3px solid var(--ambre); outline-offset: 2px; }
.cadre { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.cadre.etroit { max-width: 820px; }
.lien-evitement { position: absolute; left: -999px; top: 8px; background: #fff; padding: 8px 12px; z-index: 20; }
.lien-evitement:focus { left: 8px; }
.bandeau-env { background: var(--encre); color: #fff; text-align: center; font-size: 14px; padding: 6px 16px; }

/* Boutons */
.bouton { display: inline-block; font: inherit; font-weight: 650; font-size: 16px; padding: 12px 22px; border-radius: 8px; cursor: pointer;
       background: var(--bleu); color: #fff; text-decoration: none; border: 1px solid var(--bleu); }
.bouton:hover { background: var(--bleu-fonce); border-color: var(--bleu-fonce); }
.bouton.petit { padding: 9px 16px; }
.bouton.clair { background: #fff; color: var(--marine); border-color: #fff; }
.bouton.clair:hover { background: var(--ciel); border-color: var(--ciel); }
.bouton.fantome { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .45); }
.bouton.fantome:hover { background: rgba(255, 255, 255, .12); }

/* En-tête */
header.haut { background: #fff; border-bottom: 1px solid var(--filet); }
header.haut .cadre { display: flex; align-items: center; gap: 32px; height: 72px; }
.marque { display: flex; align-items: center; gap: 10px; font-weight: 750; font-size: 19px; text-decoration: none; letter-spacing: -.01em; }
.logo { width: 32px; height: 32px; border-radius: 8px; background: var(--bleu); display: grid; place-items: center; flex: none; }
.logo svg { width: 20px; height: 20px; }
nav.liens { display: flex; gap: 24px; margin-left: 12px; flex: 1; }
nav.liens a { white-space: nowrap; text-decoration: none; color: var(--discret); font-weight: 500; font-size: 16px; }
nav.liens a:hover { color: var(--encre); }
.droite { display: flex; align-items: center; gap: 18px; margin-left: auto; }
.connexion { position: relative; }
.connexion summary { list-style: none; cursor: pointer; font-weight: 600; padding: 8px 4px; }
.connexion summary::-webkit-details-marker { display: none; }
.connexion form { position: absolute; right: 0; top: calc(100% + 8px); z-index: 10; width: 280px; display: grid; gap: 6px; padding: 18px;
                  background: #fff; border: 1px solid var(--filet); border-radius: 10px; box-shadow: 0 12px 32px rgba(13, 39, 64, .18); }
.connexion label { font-size: 14px; color: var(--discret); }
.connexion input { font: inherit; padding: 9px 10px; border: 1px solid #c5d0db; border-radius: 6px; }
.connexion form .bouton { margin-top: 6px; }
.connexion form a { font-size: 14px; margin-top: 4px; color: var(--bleu-fonce); }

.messages { max-width: 1180px; margin: 16px auto 0; padding: 0 28px; }
.flash { margin: 0 0 8px; padding: 10px 14px; border-radius: 8px; background: var(--ciel); color: #1d4f7a; border: 1px solid #b8d2ee; }
.flash.error { background: #fdecea; color: #8a1f17; border-color: #f3bcb7; }
.flash.success { background: #e7f6ec; color: #1e6b3a; border-color: #b4e0c3; }

/* Haut de page */
.hero { background: var(--marine); color: #fff; overflow: hidden; }
.hero .cadre { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 48px; align-items: center; padding-top: 72px; }
.hero h1 { font-size: clamp(2.2rem, 4.2vw, 3.4rem); line-height: 1.08; letter-spacing: -.025em; margin: 0; font-weight: 760; }
.hero .sous { font-size: 1.15rem; color: #b9cbdd; margin: 22px 0 0; max-width: 31em; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 32px 0 0; }
.garanties { display: flex; gap: 10px 22px; flex-wrap: wrap; list-style: none; margin: 26px 0 0; padding: 0; color: #b9cbdd; font-size: 15px; }
.garanties li { display: flex; align-items: center; gap: 8px; }
.garanties svg { width: 18px; height: 18px; flex: none; fill: none; stroke: #7fd1b5; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.hero-visuel { align-self: end; }

/* Capture d'écran dans un cadre de navigateur */
.fenetre { background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid var(--filet); box-shadow: 0 20px 50px rgba(13, 39, 64, .14); }
.fenetre .barre { height: 30px; background: #e9eef4; display: flex; align-items: center; gap: 6px; padding: 0 12px; }
.fenetre .barre i { width: 10px; height: 10px; border-radius: 50%; background: #c3ced9; }
.fenetre img { display: block; width: 100%; height: auto; }
.hero .fenetre { border-radius: 12px 12px 0 0; border-bottom: 0; box-shadow: 0 -4px 60px rgba(0, 0, 0, .35); border-color: rgba(255, 255, 255, .12); }

.metiers { background: var(--fond); border-bottom: 1px solid var(--filet); }
.metiers .cadre { display: flex; align-items: center; gap: 10px 28px; flex-wrap: wrap; padding-top: 22px; padding-bottom: 22px; color: var(--discret); font-size: 15px; }
.metiers strong { color: var(--encre); font-weight: 650; }
.metiers .m { font-weight: 600; color: var(--marine); }

/* Sections */
section.bloc { padding: 88px 0; }
section.gris { background: var(--fond); }
h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); line-height: 1.15; letter-spacing: -.02em; margin: 0; font-weight: 750; }
.intro { max-width: 40em; color: var(--discret); margin: 14px 0 0; font-size: 1.1rem; }
.grille { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.fonction { border: 1px solid var(--filet); border-radius: 12px; padding: 26px; background: #fff; }
.fonction .ico { width: 44px; height: 44px; border-radius: 10px; background: var(--ciel); display: grid; place-items: center; margin-bottom: 16px; }
.fonction .ico svg { width: 24px; height: 24px; stroke: var(--bleu); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.fonction h3 { margin: 0 0 6px; font-size: 1.15rem; font-weight: 700; }
.fonction p { margin: 0; color: var(--discret); font-size: 16px; }

.ligne { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 64px; align-items: center; }
.ligne.inverse { grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); margin-top: 96px; }
.ligne.inverse .texte { order: 2; }
.ligne ul { padding: 0; margin: 22px 0 0; list-style: none; display: grid; gap: 12px; }
.ligne li { display: flex; gap: 10px; color: var(--discret); }
.ligne li svg { width: 20px; height: 20px; flex: none; margin-top: 3px; stroke: var(--sauge); fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

.demo { background: var(--bleu); color: #fff; padding: 72px 0; }
.demo .cadre { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 56px; align-items: center; }
.demo h2 { color: #fff; }
.demo p { color: #dcebf9; margin: 14px 0 0; font-size: 1.1rem; }
.puces { display: flex; flex-wrap: wrap; gap: 10px; }
.puces a { background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .3); padding: 11px 18px; border-radius: 999px; text-decoration: none; font-weight: 600; font-size: 16px; }
.puces a:hover, .puces a:focus-visible { background: #fff; color: var(--bleu-fonce); }

/* Questions fréquentes (déroulants natifs : accessibles et sans JavaScript) */
.question { border-bottom: 1px solid var(--filet); }
.question:first-of-type { margin-top: 32px; border-top: 1px solid var(--filet); }
.question summary { cursor: pointer; padding: 18px 28px 18px 0; font-weight: 650; font-size: 1.1rem; list-style: none; position: relative; }
.question summary::-webkit-details-marker { display: none; }
.question summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-size: 1.6rem; font-weight: 400; color: var(--bleu); }
.question[open] summary::after { content: "\2212"; }
.question p { margin: 0 0 18px; color: var(--discret); max-width: 40em; }

footer.bas { background: var(--marine); color: #b9cbdd; padding: 40px 0; font-size: 15px; }
footer.bas .cadre { display: flex; align-items: center; gap: 20px 40px; flex-wrap: wrap; }
footer.bas .marque { color: #fff; }
footer.bas ul { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; flex: 1; flex-wrap: wrap; }
footer.bas a { text-decoration: none; }
footer.bas ul a:hover { text-decoration: underline; }
.selecteur-langue { display: flex; gap: 6px; }
.selecteur-langue button { background: none; border: 2px solid transparent; border-radius: 4px; padding: 2px; cursor: pointer; line-height: 0; }
.selecteur-langue button.langue-active { border-color: #fff; }

@media (max-width: 900px) {
    .hero .cadre, .ligne, .ligne.inverse, .demo .cadre { grid-template-columns: 1fr; gap: 32px; }
    .ligne.inverse { margin-top: 56px; }
    .ligne.inverse .texte { order: 0; }
    .grille { grid-template-columns: 1fr; }
    nav.liens { display: none; }
    section.bloc { padding: 56px 0; }
}
@media (max-width: 600px) {
    .cadre { padding: 0 18px; }
    header.haut .cadre { gap: 8px 12px; height: auto; flex-wrap: wrap; padding-top: 12px; padding-bottom: 12px; }
    .marque { font-size: 17px; }
    .bouton.petit { padding: 8px 12px; font-size: 14px; }
    .connexion[open] form { position: fixed; left: 18px; right: 18px; top: 72px; width: auto; }
}