/* ==========================================================================
   BC EXPERTISES — Bâti Conseil Expertises
   Feuille de style principale
   ========================================================================== */

:root {
  --vert: #6A8D82;
  --vert-dark: #55766D;
  --vert-pale: #E7ECE9;
  --fond: #F7F5F0;
  --blanc: #FFFFFF;
  --texte: #3A434A;
  --texte-doux: #6B747B;
  --texte-secondaire: #4F5D68;
  --marine: #4F5D68;
  --marine-dark: #3C4750;
  --or: #B98A36;
  --or-clair: #D3AE66;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --ombre: 0 14px 34px rgba(41, 51, 46, 0.09);
  --ombre-sm: 0 6px 16px rgba(41, 51, 46, 0.08);
  --conteneur: 1180px;
  --transition: 0.25s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font: inherit; }

body {
  background: var(--fond);
  color: var(--texte);
  font-family: 'Jost', 'Segoe UI', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .logo-texte {
  font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
  color: var(--vert-dark);
  font-weight: 600;
  line-height: 1.18;
}

.conteneur {
  width: min(var(--conteneur), 100% - 48px);
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 12.5px;
  color: var(--or);
  font-weight: 500;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--or);
}

.section-titre {
  font-size: clamp(28px, 3.4vw, 40px);
  max-width: 640px;
}

.section-texte {
  max-width: 620px;
  color: var(--texte-doux);
  font-size: 17px;
  margin-top: 16px;
}

.section-entete {
  margin-bottom: 52px;
}
.section-entete.centre {
  margin-inline: auto;
  text-align: center;
}
.section-entete.centre .section-titre,
.section-entete.centre .section-texte { margin-inline: auto; }

section { padding: 96px 0; }
@media (max-width: 700px) {
  section { padding: 64px 0; }
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 100px;
  font-size: 15px;
  letter-spacing: 0.02em;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-plein {
  background: var(--vert);
  color: var(--blanc);
  box-shadow: var(--ombre-sm);
}
.btn-plein:hover { background: var(--vert-dark); transform: translateY(-2px); }

.btn-contour {
  border: 1.5px solid var(--vert);
  color: var(--vert-dark);
  background: transparent;
}
.btn-contour:hover { background: var(--vert); color: var(--blanc); }

.btn-clair {
  border: 1.5px solid rgba(255,255,255,.55);
  color: var(--blanc);
}
.btn-clair:hover { background: rgba(255,255,255,.12); }

/* ---------- Header ---------- */
.entete {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px 0;
  transition: var(--transition);
}
.entete.scroll {
  padding: 14px 0;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 18px rgba(41,51,46,.07);
}

.entete-barre {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo-lien { display: flex; align-items: center; gap: 12px; }
.logo-lien img { height: 44px; width: auto; transition: var(--transition); }
.entete.scroll .logo-lien img { height: 38px; }
.logo-lien .logo-texte {
  font-size: 19px;
  letter-spacing: 0.06em;
  color: var(--vert-dark);
}
.logo-lien .logo-texte small {
  display: block;
  font-family: 'Jost', sans-serif;
  text-transform: uppercase;
  font-size: 9.5px;
  letter-spacing: 0.2em;
  color: var(--or);
  font-weight: 500;
  margin-top: 2px;
}

.nav-principale {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-principale a {
  font-size: 14.5px;
  color: var(--texte-secondaire);
  position: relative;
  padding: 4px 0;
}
.nav-principale a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1.5px;
  background: var(--or);
  transition: var(--transition);
}
.nav-principale a:hover::after { width: 100%; }

.entete-actions { display: flex; align-items: center; gap: 18px; }
.tel-entete {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Playfair Display', serif;
  font-size: 16px;
  color: var(--vert-dark);
}
.tel-entete svg { flex-shrink: 0; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.menu-toggle span {
  width: 24px; height: 2px;
  background: var(--vert-dark);
  transition: var(--transition);
}
.menu-toggle.actif span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.actif span:nth-child(2) { opacity: 0; }
.menu-toggle.actif span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-principale {
    position: fixed;
    top: 0; right: -100%;
    height: 100vh;
    width: min(320px, 82vw);
    background: var(--fond);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 40px;
    gap: 26px;
    box-shadow: -10px 0 40px rgba(0,0,0,.12);
    transition: right 0.35s ease;
  }
  .nav-principale.ouvert { right: 0; }
  .nav-principale a { font-size: 18px; }
  .tel-entete span { display: none; }
  .menu-toggle { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 190px 0 90px;
  overflow: hidden;
}
.hero-fond-logo {
  position: absolute;
  right: 3%;
  top: 7%;
  width: clamp(220px, 18vw, 360px);
  height: auto;
  opacity: .07;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
@media (max-width: 900px) {
  .hero-fond-logo { display: none; }
}
.hero-contenu {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin-inline: auto;
  text-align: center;
}
.eyebrow-centre { justify-content: center; }
.hero h1 {
  font-size: clamp(30px, 4vw, 46px);
  max-width: 840px;
  margin-inline: auto;
}
.hero h1 em {
  font-style: normal;
  color: var(--vert);
}
.hero-texte-centre {
  margin: 22px auto 0;
  font-size: 18.5px;
  color: var(--texte-doux);
  max-width: 560px;
}
.hero-lieu-centre {
  margin: 18px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14.5px;
  letter-spacing: 0.03em;
  color: var(--texte-secondaire);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-actions-centre {
  margin-top: 34px;
  justify-content: center;
}
.hero-stats {
  margin-top: 64px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  border-top: 1px solid rgba(79,93,104,.14);
  padding-top: 34px;
}
.hero-stat {
  flex: 1 1 180px;
  max-width: 220px;
  padding: 0 26px;
  border-left: 1px solid rgba(79,93,104,.14);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hero-stat:first-child { border-left: none; }
.hero-stats-2 .hero-stat { flex-basis: 240px; }
.hero-stat strong {
  font-family: 'Playfair Display', serif;
  font-size: 24px;
  color: var(--vert-dark);
}
.hero-stat span {
  font-size: 13px;
  color: var(--texte-doux);
  line-height: 1.35;
}

@media (max-width: 900px) {
  .hero { padding: 150px 0 60px; }
}
@media (max-width: 700px) {
  .hero-stats { border-top: none; padding-top: 8px; }
  .hero-stat {
    border-left: none;
    border-top: 1px solid rgba(79,93,104,.14);
    padding: 22px 10px 0;
    flex: 1 1 42%;
    align-items: center;
    text-align: center;
  }
}

/* ---------- Déclaration (manifeste) ---------- */
.declaration {
  position: relative;
  background: linear-gradient(160deg, var(--vert-dark), var(--marine-dark));
  padding: 120px 0 100px;
  overflow: hidden;
  text-align: center;
}
.declaration-fond-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: clamp(360px, 34vw, 640px);
  height: auto;
  opacity: .07;
  pointer-events: none;
  user-select: none;
}
.declaration-citation {
  position: relative;
  z-index: 1;
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-weight: 500;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.4;
  color: var(--blanc);
  max-width: 900px;
  margin: 0 auto;
}
.declaration-citation em {
  font-style: italic;
  color: var(--or-clair);
}
.declaration-valeurs {
  position: relative;
  z-index: 1;
  margin-top: 48px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px 34px;
}
.declaration-valeurs li {
  display: flex;
  align-items: center;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 13px;
  color: rgba(255,255,255,.72);
  font-weight: 500;
}
.declaration-valeurs li:not(:last-child)::after {
  content: "•";
  color: var(--or-clair);
  margin-left: 34px;
}
@media (max-width: 700px) {
  .declaration { padding: 84px 0 70px; }
  .declaration-valeurs li:not(:last-child)::after { display: none; }
}

/* ---------- Grille de cartes (services) ---------- */
.grille-services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.carte-service {
  background: var(--blanc);
  border-radius: var(--radius);
  padding: 34px 28px;
  border: 1px solid rgba(79,93,104,.09);
  transition: var(--transition);
}
.carte-service:hover {
  transform: translateY(-6px);
  box-shadow: var(--ombre);
  border-color: transparent;
}
.carte-service .icone {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: var(--vert-pale);
  color: var(--vert-dark);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.carte-service h3 {
  font-size: 19px;
  margin-bottom: 10px;
}
.carte-service p {
  font-size: 15px;
  color: var(--texte-doux);
}

@media (max-width: 980px) {
  .grille-services { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grille-services { grid-template-columns: 1fr; }
}

/* ---------- Approche / valeurs ---------- */
.approche {
  background: var(--blanc);
}
.grille-valeurs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 30px;
}
.valeur { text-align: center; }
.valeur .icone {
  width: 58px; height: 58px;
  border-radius: 50%;
  border: 1.5px solid var(--vert);
  color: var(--vert-dark);
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
}
.valeur h3 { font-size: 17px; margin-bottom: 8px; }
.valeur p { font-size: 14.5px; color: var(--texte-doux); }

@media (max-width: 700px) {
  .grille-valeurs { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .grille-valeurs { grid-template-columns: 1fr; }
}

/* ---------- Méthode / process ---------- */
.methode { background: var(--fond); }
.etapes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  counter-reset: etape;
}
.etape {
  position: relative;
  padding: 30px 24px 24px;
  background: var(--blanc);
  border-radius: var(--radius);
  border: 1px solid rgba(79,93,104,.09);
}
.etape .num {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 38px;
  color: var(--vert);
  opacity: .25;
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}
.etape h3 { font-size: 16.5px; margin-bottom: 8px; }
.etape p { font-size: 14px; color: var(--texte-doux); }
.etape:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 46px;
  right: -26px;
  width: 26px;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--or) 0 6px, transparent 6px 10px);
  display: none;
}
@media (min-width: 981px) {
  .etape:not(:last-child)::after { display: block; }
}
@media (max-width: 980px) {
  .etapes { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .etapes { grid-template-columns: 1fr; }
}

/* ---------- À propos ---------- */
.a-propos {
  background: var(--blanc);
}
.a-propos-grille {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  align-items: center;
}
.expertise-panel {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--marine), var(--marine-dark));
  box-shadow: var(--ombre);
  padding: 40px 34px;
}
.expertise-panel-titre {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12.5px;
  color: var(--or-clair);
  font-weight: 500;
  margin-bottom: 26px;
}
.stats-grille {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.stats-grille-2 .stat-carte { padding: 28px 20px; }
.stats-grille-2 .stat-nombre { font-size: 32px; }

.panel-liste {
  display: grid;
  gap: 18px;
}
.panel-liste li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 15px;
  line-height: 1.5;
  color: rgba(255,255,255,.88);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.panel-liste svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--or-clair);
}

/* ---------- Esperluette stylisée ---------- */
.amp {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-weight: 500;
  color: var(--or);
}
.expertise-panel .amp,
.panel-liste .amp {
  color: var(--or-clair);
}
.stat-carte {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat-nombre {
  font-family: 'Playfair Display', serif;
  font-size: 27px;
  color: var(--blanc);
  line-height: 1;
}
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,.7);
  line-height: 1.4;
}

.a-propos-contenu h2 { margin-bottom: 20px; }
.a-propos-contenu p { color: var(--texte-doux); margin-bottom: 16px; font-size: 16px; }
.a-propos-liste {
  margin-top: 26px;
  display: grid;
  gap: 14px;
}
.a-propos-liste li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--texte);
}
.a-propos-liste svg { flex-shrink: 0; margin-top: 3px; color: var(--vert); }

@media (max-width: 860px) {
  .a-propos-grille { grid-template-columns: 1fr; }
  .expertise-panel { max-width: 460px; margin-inline: auto; }
}
@media (max-width: 480px) {
  .stats-grille { grid-template-columns: 1fr; }
}

/* ---------- Zone d'intervention ---------- */
.zone {
  background: var(--marine);
  color: var(--blanc);
}
.zone-grille {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.zone h2 { color: var(--blanc); }
.zone .section-texte { color: rgba(255,255,255,.75); }
.zone-departements {
  margin-top: 26px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.zone-departements span {
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 100px;
  padding: 9px 20px;
  font-size: 14px;
  letter-spacing: 0.03em;
}
.zone-carte {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 1px solid rgba(255,255,255,.18);
}
.zone-carte iframe { width: 100%; height: 100%; border: 0; filter: grayscale(.3) contrast(1.05); }

@media (max-width: 860px) {
  .zone-grille { grid-template-columns: 1fr; }
}

/* ---------- Contact ---------- */
.contact { background: var(--fond); }
.contact-grille {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 50px;
}
.contact-infos {
  background: var(--blanc);
  border-radius: var(--radius-lg);
  padding: 40px 34px;
  box-shadow: var(--ombre-sm);
  height: fit-content;
}
.contact-infos h3 { font-size: 20px; margin-bottom: 24px; }
.contact-ligne {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 22px;
}
.contact-ligne .icone {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--vert-pale);
  color: var(--vert-dark);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.contact-ligne strong { display: block; font-size: 14px; color: var(--texte-secondaire); margin-bottom: 2px; }
.contact-ligne a, .contact-ligne span.val { font-size: 15.5px; color: var(--vert-dark); }
.contact-ligne a:hover { color: var(--or); }
.contact-social {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(79,93,104,.12);
  display: flex;
  gap: 12px;
}
.contact-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(79,93,104,.25);
  display: grid;
  place-items: center;
  color: var(--texte-secondaire);
  transition: var(--transition);
}
.contact-social a:hover { background: var(--vert); border-color: var(--vert); color: var(--blanc); }

.formulaire {
  background: var(--blanc);
  border-radius: var(--radius-lg);
  padding: 44px 38px;
  box-shadow: var(--ombre-sm);
}
.champ { margin-bottom: 20px; }
.champ label {
  display: block;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--texte-secondaire);
  margin-bottom: 8px;
}
.champ input, .champ select, .champ textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid rgba(79,93,104,.2);
  border-radius: var(--radius-sm);
  background: var(--fond);
  color: var(--texte);
  transition: var(--transition);
}
.champ input:focus, .champ select:focus, .champ textarea:focus {
  outline: none;
  border-color: var(--vert);
  background: var(--blanc);
}
.champ-double {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.champ textarea { resize: vertical; min-height: 120px; }
.rgpd {
  font-size: 12.5px;
  color: var(--texte-doux);
  margin-top: -6px;
  margin-bottom: 22px;
}
.form-note {
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--texte-doux);
  display: none;
}
.form-note.visible { display: block; }

@media (max-width: 860px) {
  .contact-grille { grid-template-columns: 1fr; }
  .champ-double { grid-template-columns: 1fr; }
}

/* ---------- Bandeau CTA final ---------- */
.cta-final {
  background: linear-gradient(135deg, var(--vert-dark), var(--vert));
  color: var(--blanc);
  text-align: center;
  padding: 80px 0;
}
.cta-final h2 { color: var(--blanc); margin-inline: auto; }
.cta-final p { color: rgba(255,255,255,.82); max-width: 560px; margin: 16px auto 32px; }
.cta-final .actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.pied {
  background: var(--marine-dark);
  color: rgba(255,255,255,.7);
  padding: 70px 0 26px;
}
.pied-grille {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.pied-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.pied-logo img { height: 42px; }
.pied-logo span { font-family: 'Playfair Display', serif; font-size: 18px; color: var(--blanc); letter-spacing: 0.04em; }
.pied-colonne p { font-size: 14.5px; max-width: 300px; }
.pied-colonne h4 {
  color: var(--blanc);
  font-family: 'Jost', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 13px;
  margin-bottom: 18px;
  font-weight: 500;
}
.pied-colonne ul { display: grid; gap: 12px; }
.pied-colonne a { font-size: 14.5px; }
.pied-colonne a:hover { color: var(--or-clair); }
.pied-bas {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}
.pied-bas a:hover { color: var(--or-clair); }

@media (max-width: 780px) {
  .pied-grille { grid-template-columns: 1fr; gap: 30px; }
}

/* ---------- Animations ---------- */
[data-animer] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
[data-animer].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Utilitaires responsive globaux ---------- */
@media (max-width: 900px) {
  .hero-grille, .a-propos-grille { gap: 40px; }
}