/* =========================================================
   OCTA — Feuille de style
   Charte : noir profond / or / vert (issue du logo)
   ========================================================= */

:root {
  --noir:        #0d0f0e;
  --noir-doux:   #141815;
  --gris-fonce:  #212724;
  --or:          #d4a94a;
  --or-clair:    #f0d68b;
  --vert:        #17795a;
  --vert-clair:  #2fae83;
  --creme:       #f7f5ef;
  --gris-clair:  #eceae3;
  --texte:       #2a2e2c;
  --texte-doux:  #5d6663;
  --blanc:       #ffffff;

  --largeur:     1180px;
  --radius:      16px;
  --ombre:       0 10px 30px rgba(0, 0, 0, .08);
  --ombre-forte: 0 18px 50px rgba(0, 0, 0, .16);
  --transition:  .35s cubic-bezier(.4, 0, .2, 1);
}

/* ---------- Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--texte);
  background: var(--blanc);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--largeur);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; letter-spacing: -.01em; }

h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); margin-bottom: 18px; }
h3 { font-size: 1.15rem; margin-bottom: 10px; }

p + p { margin-top: 14px; }

.center { text-align: center; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .78rem;
  font-weight: 700;
  color: var(--or);
  margin-bottom: 10px;
}

.lede {
  font-size: 1.05rem;
  color: var(--texte-doux);
  max-width: 760px;
  margin: 0 auto 46px;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--or), var(--or-clair));
  color: var(--noir);
  box-shadow: 0 8px 24px rgba(212, 169, 74, .35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(212, 169, 74, .5); }

.btn-ghost { border-color: rgba(255, 255, 255, .55); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }

/* ---------- En-tête ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(13, 15, 14, .55);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(13, 15, 14, .96);
  box-shadow: 0 2px 20px rgba(0, 0, 0, .35);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 20px;
}

.brand-logo {
  height: 34px;
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, .5));
}

.nav { display: flex; align-items: center; gap: 26px; }

.nav a {
  color: rgba(255, 255, 255, .82);
  font-size: .92rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: var(--transition);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 2px; width: 0;
  background: var(--or);
  transition: var(--transition);
}
.nav a:hover { color: #fff; }
.nav a:hover::after { width: 100%; }

.nav .nav-cta {
  background: var(--or);
  color: var(--noir);
  padding: 9px 22px;
  border-radius: 999px;
  font-weight: 700;
}
.nav .nav-cta::after { display: none; }
.nav .nav-cta:hover { background: var(--or-clair); color: var(--noir); }

/* Bouton burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
  order: 3;
}
.burger span {
  display: block;
  width: 26px; height: 2px;
  background: #fff;
  transition: var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(13, 15, 14, .93) 0%, rgba(13, 15, 14, .75) 45%, rgba(13, 15, 14, .35) 100%),
    linear-gradient(to top, rgba(13, 15, 14, .85), transparent 45%);
}
.hero-content { position: relative; z-index: 2; padding-top: 90px; padding-bottom: 60px; max-width: 820px; }

.hero-eyebrow {
  text-transform: uppercase;
  letter-spacing: .22em;
  font-size: .8rem;
  font-weight: 700;
  color: var(--or);
  margin-bottom: 18px;
}
.hero h1 { margin-bottom: 22px; }
.hero h1::after {
  content: "";
  display: block;
  width: 84px; height: 4px;
  margin-top: 22px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--or), var(--vert-clair));
}
.hero-text { font-size: 1.12rem; color: rgba(255, 255, 255, .88); max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

/* ---------- Chiffres clés ---------- */
.stats { background: var(--noir); padding: 46px 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat {
  text-align: center;
  color: #fff;
  padding: 18px 10px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.stat:hover { background: rgba(255, 255, 255, .05); }
.stat img { width: 52px; height: 52px; margin: 0 auto 12px; object-fit: contain; }
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--or);
  line-height: 1.1;
}
.stat-label {
  display: block;
  font-size: .88rem;
  color: rgba(255, 255, 255, .68);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-top: 6px;
}

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-soft { background: var(--creme); }
.section-dark { background: var(--noir-doux); color: rgba(255, 255, 255, .84); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark .lede { color: rgba(255, 255, 255, .66); }

/* Bloc texte + image */
.split {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 60px;
  align-items: center;
}
.split-media img {
  border-radius: var(--radius);
  box-shadow: var(--ombre-forte);
  width: 100%;
  height: 100%;
  max-height: 460px;
  object-fit: cover;
}

/* ---------- Cartes ---------- */
.cards { display: grid; gap: 26px; }
.cards.two   { grid-template-columns: repeat(2, 1fr); }
.cards.three { grid-template-columns: repeat(3, 1fr); }
.cards.four  { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--blanc);
  border: 1px solid var(--gris-clair);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--ombre);
  transition: var(--transition);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--ombre-forte); border-color: var(--or); }

.section-dark .card {
  background: rgba(255, 255, 255, .045);
  border-color: rgba(255, 255, 255, .1);
  box-shadow: none;
  color: rgba(255, 255, 255, .78);
}
.section-dark .card:hover { background: rgba(255, 255, 255, .08); border-color: var(--or); }

.feature-icon {
  width: 60px;
  height: 60px;
  object-fit: contain;
  margin-bottom: 16px;
  transition: var(--transition);
}
.card:hover .feature-icon { transform: scale(1.06); }

.site-card { padding: 26px 24px; }

/* En-tête de fiche : numéro + titre côte à côte, jamais superposés */
.site-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--gris-clair);
}
.site-num {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--noir);
  color: var(--or);
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1;
}
.site-titre h3 { margin-bottom: 6px; font-size: 1.05rem; }
.site-cap {
  display: inline-block;
  background: rgba(23, 121, 90, .1);
  color: var(--vert);
  border: 1px solid rgba(23, 121, 90, .3);
  font-size: .78rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
}
.site-card p { font-size: .94rem; color: var(--texte-doux); }

/* Étiquettes */
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.tags li {
  background: rgba(212, 169, 74, .14);
  color: var(--or);
  border: 1px solid rgba(212, 169, 74, .35);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: .88rem;
  font-weight: 600;
}

/* Listes à puces */
.bullets { list-style: none; margin-top: 16px; }
.bullets li { position: relative; padding-left: 24px; margin-bottom: 8px; font-size: .95rem; }
.bullets li::before {
  content: "";
  position: absolute;
  left: 0; top: 11px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--or);
}

/* Bannière image */
.banner { margin-top: 46px; border-radius: var(--radius); overflow: hidden; }
.banner img { width: 100%; object-fit: cover; }

/* Bandeau photo large avec légende */
.photo-band {
  position: relative;
  margin: 0 0 46px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--ombre-forte);
}
.photo-band img { width: 100%; height: 340px; object-fit: cover; object-position: center 35%; }
/* Section Sites : carte à gauche, 4 fiches à droite */
.sites-layout {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 40px;
  align-items: start;
}

.carte {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gris-clair);
  background: #eaf3fb;
  box-shadow: var(--ombre);
  position: sticky;
  top: 100px;
}
.carte img { width: 100%; display: block; }

.sites-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }

/* Photo de la section Référence */
.reference-photo {
  margin: 26px 0 0;
  border-radius: 12px;
  overflow: hidden;
  max-width: 460px;
  border: 1px solid var(--gris-clair);
}
.reference-photo img { width: 100%; }
.reference-photo figcaption {
  font-size: .82rem;
  color: var(--texte-doux);
  padding: 10px 14px;
  background: var(--creme);
}

.photo-band figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 44px 28px 20px;
  color: #fff;
  font-size: .95rem;
  background: linear-gradient(to top, rgba(13, 15, 14, .88), transparent);
}

/* ---------- Étapes recrutement ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.step {
  background: var(--blanc);
  border: 1px solid var(--gris-clair);
  border-left: 4px solid var(--or);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: var(--transition);
}
.step:hover { transform: translateY(-5px); box-shadow: var(--ombre); border-left-color: var(--vert); }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--noir);
  color: var(--or);
  font-weight: 800;
  margin-bottom: 14px;
}
.step p { font-size: .95rem; color: var(--texte-doux); }

/* ---------- Référence ---------- */
.reference {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 40px;
  background: var(--blanc);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--ombre);
}
.reference-kpis { display: grid; gap: 14px; align-content: start; }
.kpi {
  background: var(--creme);
  border-radius: 12px;
  padding: 16px 20px;
  border-left: 4px solid var(--gris-clair);
}
.kpi.highlight { background: var(--noir); border-left-color: var(--or); }
.kpi.highlight .kpi-val { color: var(--or); }
.kpi.highlight .kpi-lab { color: rgba(255, 255, 255, .7); }
.kpi-val { display: block; font-size: 1.5rem; font-weight: 800; line-height: 1.2; }
.kpi-lab { display: block; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; color: var(--texte-doux); }

/* ---------- Contact ---------- */
.section-contact { background: var(--creme); }

.contact-layout {
  display: grid;
  grid-template-columns: .68fr 1.32fr;
  gap: 26px;
  max-width: 1000px;
  margin: 0 auto;
  align-items: stretch;
}

.contact-aside {
  display: flex;
  flex-direction: column;
  background: var(--noir);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--ombre);
}
.contact-aside img { width: 100%; flex: 1; min-height: 220px; object-fit: cover; object-position: center 30%; }
.contact-aside-txt { padding: 22px 24px 26px; color: rgba(255, 255, 255, .72); }
.contact-aside-txt h3 { color: var(--or); font-size: .84rem; text-transform: uppercase; letter-spacing: .14em; }
.contact-aside-txt p { font-size: .94rem; }
.a-completer { color: rgba(255, 255, 255, .38); font-style: italic; }

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  align-content: start;
  background: var(--blanc);
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--ombre);
}
.field-full { grid-column: 1 / -1; }
.field label {
  display: block;
  font-size: .86rem;
  font-weight: 700;
  margin-bottom: 7px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--texte-doux);
}
.field input, .field textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--gris-clair);
  border-radius: 10px;
  font: inherit;
  background: #fbfaf7;
  transition: var(--transition);
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--or);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(212, 169, 74, .18);
}
.field textarea { resize: vertical; }
.form-note { font-size: .82rem; color: var(--texte-doux); margin-top: 12px; }

/* ---------- Pied de page ---------- */
.site-footer { background: var(--noir); color: rgba(255, 255, 255, .68); padding: 66px 0 26px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand img { height: 40px; width: auto; margin-bottom: 18px; }
.footer-brand p { font-size: .92rem; max-width: 280px; }
.footer-col h4 {
  color: var(--or);
  font-size: .84rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  margin-bottom: 16px;
}
.footer-col a, .footer-col p { display: block; font-size: .92rem; margin-bottom: 8px; transition: var(--transition); }
.footer-col a:hover { color: var(--or); padding-left: 4px; }

.credits {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: .8rem;
  color: rgba(255, 255, 255, .45);
}
.credits a { color: rgba(255, 255, 255, .6); text-decoration: underline; }
.credits a:hover { color: var(--or); }
.attrib { max-width: 760px; text-align: right; }

/* ---------- Animations ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .cards.four  { grid-template-columns: repeat(2, 1fr); }
  .cards.three { grid-template-columns: repeat(2, 1fr); }
  .steps       { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
  .attrib { text-align: left; }
}

@media (max-width: 860px) {
  .burger { display: flex; }

  .nav {
    position: fixed;
    inset: 76px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(13, 15, 14, .98);
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease, padding .4s ease;
  }
  .nav.open { max-height: 460px; padding: 14px 24px 26px; }
  .nav a { padding: 13px 0; border-bottom: 1px solid rgba(255, 255, 255, .08); }
  .nav .nav-cta { text-align: center; margin-top: 14px; border-bottom: 0; }

  .split { grid-template-columns: 1fr; gap: 34px; }
  .sites-layout { grid-template-columns: 1fr; gap: 30px; }
  .carte { position: static; }
  .carte img { max-height: 380px; object-fit: cover; object-position: center 25%; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-aside { flex-direction: row; align-items: center; }
  .contact-aside img { width: 45%; flex: none; min-height: 160px; max-height: 190px; }
  .reference { grid-template-columns: 1fr; padding: 28px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 68px 0; }
  .hero { min-height: 80vh; }
}

@media (max-width: 620px) {
  .cards.two, .cards.three, .cards.four { grid-template-columns: 1fr; }
  .sites-cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .contact-aside { flex-direction: column; }
  .contact-aside img { width: 100%; max-height: 200px; }
  .contact-form { grid-template-columns: 1fr; padding: 26px; }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .container { padding: 0 18px; }
}