:root {
    --vert: #2f6b4f;
    --vert-fonce: #1f4a37;
    --vert-clair: #e8f1ec;
    --encre: #1e2a3a;
    --encre-clair: #e9edf3;
    --sable: #f7f5f0;
    --texte: #2b2f33;
    --gris: #5d656d;
    --bord: #dfe3e0;
    --blanc: #ffffff;
    --rayon: 14px;
    --ombre: 0 10px 30px rgba(30, 42, 58, .08);
    --max: 1140px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 17px;
    line-height: 1.65;
    color: var(--texte);
    background: var(--blanc);
}
img { max-width: 100%; display: block; }
a { color: var(--vert); }
h1, h2, h3, h4 {
    font-family: "Fraunces", Georgia, serif;
    font-weight: 600;
    line-height: 1.2;
    color: var(--encre);
    margin: 0 0 .6em;
}
.conteneur { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.visuellement-cache {
    position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap;
}

/* Bandeau du haut */
.bandeau { background: var(--encre); color: #cfd6df; font-size: 14px; }
.bandeau .conteneur {
    display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 24px;
    padding-top: 9px; padding-bottom: 9px;
}
.bandeau span, .bandeau a { display: inline-flex; align-items: center; gap: 7px; }
.bandeau a { color: #fff; text-decoration: none; }
.bandeau a:hover { text-decoration: underline; }
.bandeau .groupe { display: flex; flex-wrap: wrap; gap: 6px 20px; align-items: center; }
.ico { width: 15px; height: 15px; flex: none; fill: currentColor; }

/* Navigation */
.entete {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--bord);
}
.entete .conteneur { display: flex; align-items: center; justify-content: space-between; min-height: 70px; gap: 16px; }
.marque {
    font-family: "Fraunces", Georgia, serif; font-weight: 600; font-size: 21px;
    color: var(--vert-fonce); text-decoration: none; line-height: 1.2;
}
.nav { display: flex; align-items: center; gap: 4px; }
.nav > a, .nav .menu > button {
    font: inherit; font-size: 15px; font-weight: 500;
    color: var(--encre); text-decoration: none;
    padding: 10px 14px; border-radius: 8px; background: none; border: 0; cursor: pointer;
}
.nav > a:hover, .nav .menu > button:hover { background: var(--sable); }
.nav .menu { position: relative; }
.nav .menu > button::after { content: " ▾"; font-size: 12px; }
.nav .sous-menu {
    display: none; position: absolute; top: 100%; left: 0; min-width: 280px;
    background: #fff; border: 1px solid var(--bord); border-radius: 10px;
    box-shadow: var(--ombre); padding: 8px;
}
.nav .menu:hover .sous-menu, .nav .menu:focus-within .sous-menu { display: block; }
.nav .sous-menu a {
    display: block; padding: 10px 12px; border-radius: 6px;
    color: var(--encre); text-decoration: none; font-size: 15px;
}
.nav .sous-menu a:hover { background: var(--sable); }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    font: inherit; font-weight: 600; font-size: 15px;
    padding: 13px 24px; border-radius: 999px; border: 2px solid transparent;
    text-decoration: none; cursor: pointer; transition: background .2s, color .2s, border-color .2s;
}
.btn-plein { background: var(--vert); color: #fff; }
.btn-plein:hover { background: var(--vert-fonce); }
.btn-clair { background: transparent; color: #fff; border-color: rgba(255,255,255,.75); }
.btn-clair:hover { background: #fff; color: var(--encre); }
.nav .btn { margin-left: 10px; padding: 10px 20px; color: #fff; background: var(--vert); border-radius: 999px; }
.nav .btn:hover { background: var(--vert-fonce); }
.burger {
    display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--encre);
}
.burger svg { width: 28px; height: 28px; }

/* Accueil */
.accueil {
    position: relative; color: #fff;
    background: linear-gradient(120deg, rgba(31,74,55,.92), rgba(30,42,58,.86)), url("img/carousel-1.jpg") center / cover no-repeat, var(--vert-fonce);
    padding: 96px 0 120px;
}
.accueil .surtitre {
    text-transform: uppercase; letter-spacing: .18em; font-size: 14px; font-weight: 600;
    color: #bfe0cd; margin: 0 0 14px;
}
.accueil h1 { color: #fff; font-size: clamp(2.3rem, 5.5vw, 4rem); max-width: 14ch; }
.accueil .accroche { font-size: 1.25rem; color: #e4ece8; margin: 0 0 34px; }
.accueil .boutons { display: flex; flex-wrap: wrap; gap: 14px; }

/* Cartes des trois domaines */
.domaines { margin-top: -70px; position: relative; z-index: 2; }
.domaines .grille { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.carte {
    background: #fff; border-radius: var(--rayon); box-shadow: var(--ombre);
    padding: 30px 28px; border-top: 5px solid var(--vert);
    display: flex; flex-direction: column;
}
.carte.juridique { border-top-color: var(--encre); }
.carte h3 { font-size: 1.35rem; }
.carte p { color: var(--gris); margin: 0 0 18px; flex: 1; }
.carte a { font-weight: 600; text-decoration: none; }
.carte a::after { content: " →"; }
.carte.juridique a { color: var(--encre); }
.pastille {
    width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
    background: var(--vert-clair); color: var(--vert); margin-bottom: 18px;
}
.carte.juridique .pastille { background: var(--encre-clair); color: var(--encre); }
.pastille svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Atouts */
.atouts { padding: 70px 0 30px; }
.atouts .grille { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.atout {
    display: flex; align-items: center; gap: 14px;
    padding: 18px 20px; border: 1px solid var(--bord); border-radius: var(--rayon);
}
.atout .num { font-family: "Fraunces", Georgia, serif; font-size: 2rem; color: var(--vert); line-height: 1; }
.atout h5 { margin: 0; font-size: 1.05rem; font-weight: 600; color: var(--encre); }

/* Sections */
section { padding: 80px 0; }
.fond-sable { background: var(--sable); }
.titre-section { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }

.apropos .grille { display: grid; grid-template-columns: 5fr 7fr; gap: 56px; align-items: center; }
.apropos .photo {
    border-radius: var(--rayon); overflow: hidden; aspect-ratio: 4 / 5;
    background: linear-gradient(160deg, var(--vert-clair), var(--encre-clair));
}
.apropos .photo img { width: 100%; height: 100%; object-fit: cover; }
.jalons { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 16px; }
.jalons li {
    background: #fff; border-radius: 12px; padding: 18px 22px; border-left: 4px solid var(--encre);
}
.jalons li.vert { border-left-color: var(--vert); }
.jalons .annee { font-weight: 600; color: var(--encre); }
.jalons li.vert .annee { color: var(--vert); }

.transformation { text-align: center; }
.transformation .conteneur { max-width: 820px; }
.transformation .accroche { font-weight: 600; color: var(--vert); font-size: 1.1rem; margin: 0 0 12px; }
.transformation p { font-size: 1.15rem; }
.duo { display: flex; justify-content: center; gap: 10px; margin-bottom: 22px; }
.duo span { width: 46px; height: 6px; border-radius: 3px; background: var(--vert); }
.duo span + span { background: var(--encre); }

.detail { padding: 0 0 80px; }
.detail .grille { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.bloc {
    border-radius: var(--rayon); padding: 40px 36px; background: var(--vert-clair);
    scroll-margin-top: 90px;
}
.bloc.pleine-largeur { grid-column: 1 / -1; }
.bloc.juridique { background: var(--encre); color: #dbe2ea; }
.bloc.juridique h2 { color: #fff; }
.bloc h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
.bloc p { margin: 0; }
.bloc .pastille { background: #fff; }
.bloc.juridique .pastille { background: rgba(255,255,255,.12); color: #fff; }

/* Contact */
.contact .grille {
    display: grid; grid-template-columns: 4fr 7fr; border-radius: var(--rayon); overflow: hidden;
    box-shadow: var(--ombre); background: #fff;
}
.contact .infos {
    background: linear-gradient(160deg, var(--vert-fonce), var(--encre)); color: #e4ece8; padding: 44px 36px;
}
.contact .infos h2 { color: #fff; font-size: clamp(1.9rem, 3.4vw, 2.5rem); }
.contact .infos h4 { color: #bfe0cd; font-family: "Inter", sans-serif; font-size: .95rem; text-transform: uppercase; letter-spacing: .08em; margin: 30px 0 8px; }
.contact .infos .tel { font-family: "Fraunces", Georgia, serif; font-size: 1.6rem; color: #fff; text-decoration: none; }
.contact .infos .whatsapp { display: inline-flex; align-items: center; gap: 8px; color: #fff; margin-top: 10px; }
.contact form { padding: 44px 40px; }
.champs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.champs .large { grid-column: 1 / -1; }
input, select, textarea {
    width: 100%; font: inherit; font-size: 16px; color: var(--texte);
    padding: 14px 16px; border: 1px solid var(--bord); border-radius: 10px; background: var(--sable);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--vert); outline-offset: 1px; background: #fff; }
textarea { resize: vertical; min-height: 170px; }
.verif {
    display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px;
    padding: 16px; border: 1px dashed var(--bord); border-radius: 10px;
}
.verif .code {
    font-family: "Courier New", monospace; font-size: 1.4rem; font-weight: 700; letter-spacing: .3em;
    padding: 6px 12px 6px 16px; border-radius: 8px; background: var(--encre); color: #fff;
    user-select: none; -webkit-user-select: none;
}
.verif input { flex: 1; min-width: 150px; text-transform: uppercase; letter-spacing: .15em; }
.mention { font-size: 14px; color: var(--gris); margin: 0 0 10px; }
.contact button[type=submit] { width: 100%; padding: 16px; font-size: 16px; }
.titre-form { font-size: 1.4rem; margin-bottom: 18px; }
.alerte { padding: 14px 18px; border-radius: 10px; margin-bottom: 18px; font-weight: 500; }
.alerte.succes { background: #e3f3e8; color: #1d5a35; }
.alerte.erreur { background: #fbe9e7; color: #8a2a1c; }

/* Pied de page */
.pied { background: var(--encre); color: #b9c3cf; padding: 64px 0 0; font-size: 15px; }
.pied .grille { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; }
.pied h4 { color: #fff; font-size: 1.15rem; }
.pied p { margin: 0 0 8px; display: flex; align-items: center; gap: 10px; }
.pied a { color: #dbe2ea; text-decoration: none; }
.pied a:hover { color: #fff; text-decoration: underline; }
.pied .liens a { display: block; margin-bottom: 8px; }
.reseau {
    display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
    border: 1px solid rgba(255,255,255,.35); margin-top: 8px;
}
.pied .bas { border-top: 1px solid rgba(255,255,255,.12); margin-top: 48px; padding: 20px 0; font-size: 14px; }

.haut {
    position: fixed; right: 20px; bottom: 20px; width: 46px; height: 46px; border-radius: 50%;
    background: var(--vert); color: #fff; display: grid; place-items: center; text-decoration: none;
    box-shadow: var(--ombre); opacity: 0; pointer-events: none; transition: opacity .3s;
}
.haut.visible { opacity: 1; pointer-events: auto; }

/* Tablette */
@media (max-width: 980px) {
    .domaines .grille { grid-template-columns: 1fr; }
    .atouts .grille { grid-template-columns: 1fr 1fr; }
    .apropos .grille, .contact .grille { grid-template-columns: 1fr; }
    .apropos .photo { aspect-ratio: 16 / 10; }
    .detail .grille { grid-template-columns: 1fr; }
    .pied .grille { grid-template-columns: 1fr 1fr; }
    .pied .grille > :first-child { grid-column: 1 / -1; }

    .burger { display: block; }
    .nav {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 0;
        background: #fff; border-bottom: 1px solid var(--bord); padding: 10px 22px 20px;
        box-shadow: var(--ombre);
    }
    .nav.ouvert { display: flex; }
    .nav > a, .nav .menu > button { padding: 13px 4px; text-align: left; width: 100%; border-radius: 0; border-bottom: 1px solid var(--bord); }
    .nav .menu > button::after { content: ""; }
    .nav .sous-menu { display: block; position: static; box-shadow: none; border: 0; padding: 0 0 0 14px; min-width: 0; }
    .nav .btn { margin: 16px 0 0; text-align: center; border-bottom: 0; border-radius: 999px; }
}
/* Mobile */
@media (max-width: 640px) {
    body { font-size: 16px; }
    .bandeau .masque-mobile { display: none; }
    .marque { font-size: 18px; }
    .accueil { padding: 64px 0 110px; }
    .accueil .boutons .btn { width: 100%; }
    section { padding: 60px 0; }
    .atouts { padding: 50px 0 10px; }
    .atouts .grille { grid-template-columns: 1fr; }
    .champs { grid-template-columns: 1fr; }
    .bloc { padding: 30px 24px; }
    .contact .infos, .contact form { padding: 32px 22px; }
    .pied .grille { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* ---------- Pages intérieures (blog, pages, photothèque) ---------- */
.bandeau-titre {
    background: linear-gradient(120deg, var(--vert-fonce), var(--encre));
    color: #e4ece8; padding: 64px 0 56px;
}
.bandeau-titre h1 { color: #fff; font-size: clamp(2rem, 4.5vw, 3rem); margin: 0; }
.bandeau-titre p { margin: 12px 0 0; max-width: 60ch; font-size: 1.1rem; }
.bandeau-titre .fil { font-size: 14px; margin: 0 0 14px; }
.bandeau-titre .fil a { color: #bfe0cd; text-decoration: none; }
.bandeau-titre .fil a:hover { text-decoration: underline; }
.interieur { padding: 64px 0 80px; }
.vide { text-align: center; color: var(--gris); padding: 40px 0; }

.prose { max-width: 760px; margin: 0 auto; font-size: 1.08rem; }
.prose h2 { font-size: 1.7rem; margin-top: 1.6em; }
.prose h3 { font-size: 1.35rem; margin-top: 1.4em; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose figure { margin: 0 0 1.1em; }
.prose img { border-radius: 10px; height: auto; margin: 1.4em auto; }
.prose blockquote { border-left: 4px solid var(--vert); padding: 6px 0 6px 20px; color: var(--gris); font-style: italic; }
.prose figcaption { font-size: 14px; color: var(--gris); text-align: center; margin-top: -0.8em; }
.prose hr { border: 0; border-top: 1px solid var(--bord); margin: 2em 0; }
.prose .couverture { width: 100%; max-height: 460px; object-fit: cover; margin: 0 0 2em; }
.meta { color: var(--gris); font-size: 15px; margin-bottom: 24px; }
.retour { display: inline-block; margin-top: 36px; font-weight: 600; text-decoration: none; }

.articles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.article-carte {
    background: #fff; border-radius: var(--rayon); overflow: hidden; box-shadow: var(--ombre);
    display: flex; flex-direction: column; text-decoration: none; color: inherit;
    transition: transform .2s;
}
.article-carte:hover { transform: translateY(-3px); }
.article-carte .vignette { aspect-ratio: 16 / 10; background: linear-gradient(160deg, var(--vert-clair), var(--encre-clair)); }
.article-carte .vignette img { width: 100%; height: 100%; object-fit: cover; }
.article-carte .corps { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.article-carte h2 { font-size: 1.3rem; margin-bottom: 8px; }
.article-carte .date { font-size: 14px; color: var(--vert); font-weight: 600; margin-bottom: 8px; }
.article-carte p { color: var(--gris); margin: 0; flex: 1; }

.galerie { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.galerie a { display: block; border-radius: 12px; overflow: hidden; aspect-ratio: 1; background: var(--sable); position: relative; }
.galerie img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.galerie a:hover img { transform: scale(1.04); }
.galerie .legende {
    position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 14px 12px; color: #fff; font-size: 14px;
    background: linear-gradient(transparent, rgba(0,0,0,.6));
}
.visionneuse {
    position: fixed; inset: 0; z-index: 100; background: rgba(15, 22, 30, .92);
    display: none; align-items: center; justify-content: center; flex-direction: column; padding: 20px;
}
.visionneuse.ouverte { display: flex; }
.visionneuse img { max-width: 100%; max-height: 82vh; border-radius: 8px; }
.visionneuse p { color: #fff; margin: 14px 0 0; text-align: center; }
.visionneuse button {
    position: absolute; background: rgba(255,255,255,.12); color: #fff; border: 0; cursor: pointer;
    width: 48px; height: 48px; border-radius: 50%; font-size: 22px;
}
.visionneuse .fermer { top: 18px; right: 18px; }
.visionneuse .prec { left: 18px; top: 50%; }
.visionneuse .suiv { right: 18px; top: 50%; }

.apropos .intro { margin: 0 0 6px; color: var(--gris); }

@media (max-width: 980px) {
    .articles { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .articles { grid-template-columns: 1fr; }
    .bandeau-titre { padding: 46px 0 40px; }
    .interieur { padding: 44px 0 60px; }
    .galerie { grid-template-columns: 1fr 1fr; gap: 10px; }
}