/* =====================================================================
   Versant Conseil — Feuille de style
   Mobile-first · palette sobre montagne · Playfair Display + Inter
   ===================================================================== */

:root {
    --blanc-casse: #F8F7F4;
    --anthracite:  #2C2C2C;
    --vert-foret:  #3D6B4F;
    --vert-fonce:  #2F523C;
    --gris-pierre: #8A8A8A;
    --gris-clair:  #E7E5E0;
    --blanc:       #FFFFFF;

    --serif: 'Playfair Display', Georgia, serif;
    --sans:  'Inter', system-ui, -apple-system, sans-serif;

    --largeur-max: 1140px;
    --rayon: 6px;
    --ombre: 0 8px 30px rgba(44, 44, 44, 0.07);
    --transition: 180ms ease;
}

/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--sans);
    font-weight: 400;
    color: var(--anthracite);
    background: var(--blanc-casse);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--serif);
    font-weight: 600;
    line-height: 1.2;
    color: var(--anthracite);
    margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }

a { color: var(--vert-foret); text-decoration: none; }
a:hover { text-decoration: underline; }

img, svg { max-width: 100%; }

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--anthracite);
    color: #fff;
    padding: 0.6rem 1rem;
    z-index: 1000;
}
.skip-link:focus { left: 0; }

/* ── Conteneurs ── */
.conteneur {
    width: 100%;
    max-width: var(--largeur-max);
    margin: 0 auto;
    padding: 0 1.4rem;
}
.conteneur-etroit { max-width: 720px; }

.conteneur-deux {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: 1fr;
    align-items: center;
}

.section { padding: 4rem 0; }
.section-tete { text-align: center; max-width: 680px; margin: 0 auto 2.5rem; }
.section-tete h2 { font-size: clamp(1.7rem, 4vw, 2.3rem); }
.section-chapeau { color: var(--gris-pierre); font-size: 1.05rem; }
.section-action { text-align: center; margin-top: 2.5rem; }
.bloc-espace { margin-top: 2rem; }

/* ── Boutons ── */
.btn {
    display: inline-block;
    font-family: var(--sans);
    font-weight: 500;
    font-size: 0.98rem;
    padding: 0.85rem 1.7rem;
    border-radius: var(--rayon);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    text-align: center;
}
.btn:hover { text-decoration: none; }
.btn-primaire { background: var(--vert-foret); color: #fff; }
.btn-primaire:hover { background: var(--vert-fonce); }
.btn-secondaire { background: transparent; color: var(--vert-foret); border-color: var(--vert-foret); }
.btn-secondaire:hover { background: var(--vert-foret); color: #fff; }

/* ── En-tête / navigation ── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(248, 247, 244, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--gris-clair);
}
.nav {
    max-width: var(--largeur-max);
    margin: 0 auto;
    padding: 0.9rem 1.4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 0.6rem; color: var(--anthracite); font-family: var(--serif); font-weight: 600; font-size: 1.2rem; }
.nav-logo:hover { text-decoration: none; }
.nav-logo-mark { color: var(--vert-foret); }

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.6rem;
    margin: 0;
    padding: 0;
}
.nav-menu a { color: var(--anthracite); font-size: 0.96rem; font-weight: 400; }
.nav-menu a:hover { color: var(--vert-foret); text-decoration: none; }
.nav-menu a.actif { color: var(--vert-foret); font-weight: 500; }
.nav-cta {
    background: var(--vert-foret);
    color: #fff !important;
    padding: 0.5rem 1.1rem;
    border-radius: var(--rayon);
}
.nav-cta:hover { background: var(--vert-fonce); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: 0;
    cursor: pointer;
    padding: 6px;
}
.nav-toggle span {
    width: 24px; height: 2px;
    background: var(--anthracite);
    transition: var(--transition);
}

/* ── Hero ── */
.hero {
    position: relative;
    overflow: hidden;
    background: var(--anthracite);
    color: var(--blanc-casse);
    padding: 5.5rem 1.4rem 6rem;
    text-align: center;
}
.hero-bg { position: absolute; inset: 0; opacity: 0.5; }
.hero-bg svg { width: 100%; height: 100%; }
.relief-1 { fill: #344a3a; }
.relief-2 { fill: #3d6b4f; opacity: 0.55; }
.hero-inner { position: relative; max-width: 760px; margin: 0 auto; }
.hero-surtitre {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    color: #cfd8cf;
    margin-bottom: 1.2rem;
}
.hero-titre {
    font-size: clamp(2.1rem, 6vw, 3.4rem);
    color: #fff;
    margin-bottom: 1.2rem;
}
.hero-texte { font-size: 1.1rem; color: #e6e3dd; margin-bottom: 2rem; }

/* ── Notre approche ── */
.section-approche { background: var(--blanc); }
.grille-approche {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}
.bloc-approche { text-align: center; padding: 1rem; }
.bloc-icone {
    display: inline-flex;
    width: 64px; height: 64px;
    align-items: center; justify-content: center;
    color: var(--vert-foret);
    background: var(--blanc-casse);
    border-radius: 50%;
    margin-bottom: 1rem;
}
.bloc-icone svg { width: 32px; height: 32px; }
.bloc-approche h3 { font-size: 1.3rem; }
.bloc-approche p { color: var(--gris-pierre); }

/* ── Services ── */
.categorie { margin-bottom: 2.8rem; }
.categorie-titre {
    font-size: 1.4rem;
    color: var(--vert-foret);
    border-bottom: 1px solid var(--gris-clair);
    padding-bottom: 0.6rem;
    margin-bottom: 1.6rem;
}
.grille-services {
    display: grid;
    gap: 1.4rem;
    grid-template-columns: 1fr;
}
.carte-service {
    position: relative;
    background: var(--blanc);
    border: 1px solid var(--gris-clair);
    border-radius: var(--rayon);
    padding: 1.6rem;
    transition: box-shadow var(--transition), transform var(--transition);
}
.carte-service:hover { box-shadow: var(--ombre); transform: translateY(-3px); }
.carte-marque { display: inline-flex; color: var(--vert-foret); margin-bottom: 0.8rem; }
.carte-marque svg { width: 34px; height: 34px; }
.carte-service h3, .carte-service h4 { font-size: 1.12rem; margin-bottom: 0.5rem; }
.carte-service p { color: var(--gris-pierre); font-size: 0.96rem; margin: 0; }
.badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--vert-foret);
    background: rgba(61, 107, 79, 0.08);
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    margin-bottom: 0.8rem;
}

/* ── À propos ── */
.section-apropos { background: var(--blanc); }
.apropos-visuel { color: var(--vert-foret); text-align: center; }
.apropos-visuel svg { width: 100%; max-width: 320px; }
.apropos-texte h2 { font-size: clamp(1.6rem, 4vw, 2.1rem); }
.apropos-signature { font-style: italic; color: var(--gris-pierre); }
.liste-valeurs { list-style: none; padding: 0; margin: 0 0 1rem; }
.liste-valeurs li { padding-left: 1.4rem; position: relative; margin-bottom: 0.5rem; }
.liste-valeurs li::before {
    content: ""; position: absolute; left: 0; top: 0.65em;
    width: 8px; height: 8px; background: var(--vert-foret); border-radius: 50%;
}

/* ── Timeline expertises ── */
.section-expertises { background: var(--blanc-casse); }
.timeline { list-style: none; margin: 0; padding: 0; max-width: 760px; }
.timeline-item {
    position: relative;
    padding: 0 0 1.8rem 2rem;
    border-left: 2px solid var(--gris-clair);
}
.timeline-item:last-child { border-left-color: transparent; }
.timeline-point {
    position: absolute; left: -8px; top: 4px;
    width: 14px; height: 14px;
    background: var(--vert-foret);
    border: 3px solid var(--blanc-casse);
    border-radius: 50%;
}
.timeline-item h3 { font-size: 1.15rem; margin-bottom: 0.25rem; }
.timeline-item p { color: var(--gris-pierre); margin: 0; }

/* ── Pages internes (tête) ── */
.page-tete {
    background: var(--anthracite);
    color: #fff;
    padding: 3.5rem 0;
    text-align: center;
}
.page-tete h1 { color: #fff; font-size: clamp(2rem, 5vw, 2.8rem); }
.page-surtitre {
    text-transform: uppercase; letter-spacing: 0.16em;
    font-size: 0.76rem; color: #cfd8cf; margin-bottom: 0.8rem;
}
.page-intro { color: #e6e3dd; max-width: 640px; margin: 0 auto; }

/* ── Formulaires ── */
.formulaire { max-width: 640px; }
.champ { margin-bottom: 1.2rem; }
.champ label { display: block; font-size: 0.9rem; font-weight: 500; margin-bottom: 0.4rem; }
.requis { color: var(--vert-foret); }
.champ input, .champ textarea {
    width: 100%;
    font-family: var(--sans);
    font-size: 1rem;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--gris-clair);
    border-radius: var(--rayon);
    background: var(--blanc);
    color: var(--anthracite);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.champ input:focus, .champ textarea:focus {
    outline: none;
    border-color: var(--vert-foret);
    box-shadow: 0 0 0 3px rgba(61, 107, 79, 0.12);
}
.champ textarea { resize: vertical; }

/* Honeypot : masqué visuellement et aux lecteurs d'écran */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ── Messages ── */
.message { padding: 0.9rem 1.1rem; border-radius: var(--rayon); margin-bottom: 1.4rem; font-size: 0.95rem; }
.message ul { margin: 0; padding-left: 1.2rem; }
.message-succes { background: rgba(61, 107, 79, 0.1); color: var(--vert-fonce); border: 1px solid rgba(61, 107, 79, 0.3); }
.message-erreur { background: #fbeceb; color: #8a2a22; border: 1px solid #e7b9b4; }

/* ── Contact ── */
.conteneur-contact { align-items: start; }
.contact-ligne { margin-bottom: 0.4rem; }
.contact-visuel { color: var(--vert-foret); margin-top: 2rem; opacity: 0.8; }

/* ── Pied de page ── */
.site-footer { background: var(--anthracite); color: #d9d6cf; padding: 3rem 0 1.5rem; }
.footer-inner {
    max-width: var(--largeur-max);
    margin: 0 auto;
    padding: 0 1.4rem;
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}
.footer-marque { display: flex; align-items: center; gap: 0.5rem; color: #fff; font-family: var(--serif); font-size: 1.2rem; margin-bottom: 0.6rem; }
.footer-baseline { color: var(--gris-pierre); max-width: 320px; }
.footer-liens { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-liens a { color: #d9d6cf; }
.footer-liens a:hover { color: #fff; }
.footer-contact p { margin: 0 0 0.3rem; }
.footer-contact a { color: #d9d6cf; }
.footer-bas {
    max-width: var(--largeur-max);
    margin: 2rem auto 0;
    padding: 1.2rem 1.4rem 0;
    border-top: 1px solid #3a3a3a;
    font-size: 0.85rem;
    color: var(--gris-pierre);
    text-align: center;
}
.footer-bas p { margin: 0; }

/* =====================================================================
   BACK-OFFICE ADMIN
   ===================================================================== */
.admin-body { background: #f1f0ec; }

.admin-login {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding: 1.4rem;
}
.admin-login-carte {
    background: #fff;
    padding: 2.4rem;
    border-radius: var(--rayon);
    box-shadow: var(--ombre);
    width: 100%; max-width: 380px;
}
.admin-login-carte h1 { font-size: 1.5rem; margin-bottom: 0.2rem; }
.admin-login-sous { color: var(--gris-pierre); margin-bottom: 1.6rem; }

.admin-topbar { background: var(--anthracite); color: #fff; }
.admin-topbar-inner {
    max-width: 1100px; margin: 0 auto; padding: 0.8rem 1.4rem;
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.6rem;
}
.admin-marque { font-family: var(--serif); font-size: 1.05rem; }
.admin-nav { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.admin-nav a { color: #d9d6cf; font-size: 0.92rem; }
.admin-nav a:hover { color: #fff; }
.admin-logout { color: #e7b9b4 !important; }

.admin-main { max-width: 1100px; margin: 0 auto; padding: 2rem 1.4rem 3rem; }
.admin-titre { font-size: 1.7rem; margin-bottom: 1.5rem; }
.admin-section { background: #fff; border: 1px solid var(--gris-clair); border-radius: var(--rayon); padding: 1.6rem; margin-bottom: 1.6rem; }
.admin-section h2 { font-size: 1.25rem; }
.admin-compteur { font-family: var(--sans); font-size: 0.85rem; font-weight: 400; color: var(--gris-pierre); margin-left: 0.6rem; }
.admin-cat { font-size: 1.05rem; color: var(--vert-foret); margin-top: 1.2rem; }
.admin-liste { margin: 0 0 0.5rem; padding-left: 1.2rem; }
.admin-liste li { margin-bottom: 0.35rem; font-size: 0.94rem; }
.admin-vide { color: var(--gris-pierre); }

.admin-table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th, .admin-table td { text-align: left; padding: 0.65rem 0.7rem; border-bottom: 1px solid var(--gris-clair); vertical-align: top; }
.admin-table th { font-family: var(--sans); font-weight: 600; color: var(--gris-pierre); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.ligne-non-lue { background: rgba(61, 107, 79, 0.05); }
.cellule-message { max-width: 360px; }
.nowrap { white-space: nowrap; }
.pastille { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--gris-clair); }
.pastille-on { background: var(--vert-foret); }

.btn-petit {
    font-family: var(--sans); font-size: 0.8rem;
    padding: 0.35rem 0.7rem; border: 1px solid var(--gris-clair);
    background: #fff; border-radius: var(--rayon); cursor: pointer; white-space: nowrap;
}
.btn-petit:hover { border-color: var(--vert-foret); color: var(--vert-foret); }

.admin-edit { display: grid; gap: 1.6rem; grid-template-columns: 1fr; }
.admin-edit-liste ul { list-style: none; margin: 0; padding: 0; }
.admin-edit-liste a {
    display: block; padding: 0.6rem 0.8rem; border-radius: var(--rayon);
    color: var(--anthracite);
}
.admin-edit-liste a:hover { background: #f1f0ec; text-decoration: none; }
.admin-edit-liste a.actif { background: rgba(61, 107, 79, 0.1); color: var(--vert-fonce); }
.admin-slug { display: block; font-size: 0.75rem; color: var(--gris-pierre); }
.admin-liste-cat {
    list-style: none;
    margin: 0.9rem 0 0.2rem;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--vert-foret);
}
.admin-liste-cat:first-child { margin-top: 0; }
.champ-case label { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 400; }
.champ-case input { width: auto; }

.admin-pied { text-align: center; color: var(--gris-pierre); font-size: 0.85rem; padding: 1.5rem; }

/* =====================================================================
   RESPONSIVE — au-delà du mobile
   ===================================================================== */
@media (min-width: 600px) {
    .grille-services { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 2fr 1fr 1fr; }
}

@media (min-width: 760px) {
    .grille-approche { grid-template-columns: repeat(3, 1fr); }
    .conteneur-deux { grid-template-columns: 1fr 1fr; }
    .conteneur-contact { grid-template-columns: 1fr 1.3fr; }
    .admin-edit { grid-template-columns: 260px 1fr; }
}

@media (min-width: 980px) {
    .grille-services { grid-template-columns: repeat(3, 1fr); }
}

/* ── Menu mobile ── */
@media (max-width: 820px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: absolute;
        top: 100%; left: 0; right: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        background: var(--blanc-casse);
        border-bottom: 1px solid var(--gris-clair);
        padding: 0.5rem 1.4rem 1.2rem;
        display: none;
    }
    .nav-menu.ouvert { display: flex; }
    .nav-menu li { width: 100%; }
    .nav-menu a { display: block; padding: 0.7rem 0; width: 100%; }
    .nav-cta { display: inline-block; margin-top: 0.5rem; }
    .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (prefers-reduced-motion: reduce) {
    * { scroll-behavior: auto !important; transition: none !important; }
}