/* =========================================================
   STL — Feuille de style
   Identité : bleu STL (#0190D6) + anthracite
   ========================================================= */

:root {
  --c-blue:    #0190d6;   /* bleu STL (logo) */
  --c-blue-d:  #0273a8;
  --c-navy:    #0e2a38;   /* bleu nuit (en-tête / pied) */
  --c-navy-2:  #143849;
  --c-grey:    #6b7280;
  --c-light:   #f1f5f8;   /* fond clair */
  --c-white:   #ffffff;
  --c-border:  #e1e6ea;

  --maxw: 1480px;
  --radius: 8px;
  --shadow: 0 12px 32px rgba(14,42,56,.12);

  --font-head: "Barlow Condensed", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

/* ---------- Base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  font-family: var(--font-body);
  color: var(--c-navy);
  line-height: 1.65;
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3 {
  font-family: var(--font-head);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: .5px;
}

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

.eyebrow {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  color: var(--c-blue);
  font-size: .95rem;
  margin-bottom: 8px;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 14px 30px;
  border-radius: var(--radius);
  transition: transform .15s ease, background .2s ease, color .2s ease;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--c-blue); color: var(--c-white); }
.btn-primary:hover { background: var(--c-blue-d); }
.btn-ghost { border-color: rgba(255,255,255,.65); color: var(--c-white); }
.btn-ghost:hover { background: rgba(255,255,255,.14); }

/* ---------- En-tête ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--c-navy);
  border-bottom: 3px solid var(--c-blue);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 14px; color: var(--c-white); }
.brand-logo {
  height: 40px; width: auto;
  background: #fff;
  padding: 6px 10px;
  border-radius: 6px;
}
.brand-text small {
  color: #9fb3c0;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-family: var(--font-head);
}

.nav-menu { list-style: none; display: flex; align-items: center; gap: 4px; }
.nav-menu a {
  display: block;
  color: var(--c-white);
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 1.02rem;
  padding: 10px 14px;
  border-radius: var(--radius);
  transition: color .2s ease, background .2s ease;
}
.nav-menu a:hover { color: var(--c-blue); }
.nav-menu .nav-cta { background: var(--c-blue); color: var(--c-white); }
.nav-menu .nav-cta:hover { background: var(--c-blue-d); color: var(--c-white); }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; cursor: pointer; padding: 8px;
}
.nav-toggle span { width: 26px; height: 3px; background: var(--c-white); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: var(--c-white);
  background:
    linear-gradient(120deg, rgba(14,42,56,.94) 0%, rgba(14,42,56,.62) 55%, rgba(1,144,214,.45) 100%),
    url("../assets/img/realisation-logements.png");
  background-size: cover;
  background-position: center;
}
.hero-content { padding-block: 118px 124px; max-width: 760px; }
.hero-eyebrow {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 3px;
  color: #7ec9f0;
  font-weight: 600;
  margin-bottom: 18px;
}
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 700; margin-bottom: 22px; }
.hero-lead { font-size: 1.2rem; color: #e7eef3; max-width: 620px; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

/* ---------- Stats ---------- */
.stats { background: var(--c-blue); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-block: 32px;
  text-align: center;
}
.stat { display: flex; flex-direction: column; color: #fff; }
.stat-num { font-family: var(--font-head); font-weight: 700; font-size: clamp(1.9rem, 3vw, 2.7rem); }
.stat-label { text-transform: uppercase; letter-spacing: 1px; font-size: .82rem; font-weight: 600; color: #dff1fb; }

/* ---------- Sections ---------- */
.section { padding-block: 86px; }
.section-alt { background: var(--c-light); }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section h2, .cta h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 700; }
.section p { color: #45525c; }

/* Split (présentation) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split-body h2 { margin-bottom: 18px; }
.split-body p { margin-bottom: 14px; }
.media-img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; height: auto; }

.check-list { list-style: none; margin-top: 18px; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 34px; font-weight: 500; color: var(--c-navy); }
.check-list li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  width: 24px; height: 24px;
  background: var(--c-blue); color: #fff;
  font-weight: 700; border-radius: 50%;
  display: grid; place-items: center; font-size: .82rem;
}

/* Cards */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--c-blue); }
.card-icon { font-size: 2.1rem; margin-bottom: 14px; }

/* Cartes savoir-faire avec photo */
.sf-card { padding: 0; overflow: hidden; }
.sf-photo { aspect-ratio: 16 / 10; background: #e6edf2; }
.sf-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sf-body { padding: 22px 24px 26px; }
.sf-body h3 { font-size: 1.3rem; color: var(--c-navy); margin-bottom: 10px; }
.sf-body p { font-size: .96rem; color: #45525c; }
.card h3 { font-size: 1.3rem; margin-bottom: 10px; color: var(--c-navy); }
.card p { font-size: .96rem; color: #45525c; }

/* ---------- Organisation ---------- */
.org-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 64px; }
.org-block {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 30px;
}
.org-ic { width: 56px; height: 56px; object-fit: contain; margin-bottom: 14px; }
.org-block h3 { font-size: 1.4rem; margin-bottom: 12px; }
.org-block p { color: #45525c; }

/* ---------- Références ---------- */
.ref-filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.ref-filter {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: .5px;
  font-size: .95rem;
  font-weight: 600;
  padding: 9px 18px;
  border: 1px solid var(--c-border);
  background: var(--c-white);
  color: var(--c-navy);
  border-radius: 30px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.ref-filter:hover { border-color: var(--c-blue); color: var(--c-blue); }
.ref-filter.is-active { background: var(--c-blue); color: #fff; border-color: var(--c-blue); }

.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.ref-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease;
}
.ref-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.rc-media { aspect-ratio: 16 / 10; background: #e6edf2; }
.rc-media img { width: 100%; height: 100%; object-fit: cover; }
.rc-media--empty {
  background: repeating-linear-gradient(135deg, #e3eaf0 0 22px, #dbe3ea 22px 44px);
}
.rc-body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 8px; }
.rc-badges { display: flex; flex-wrap: wrap; gap: 6px; align-self: flex-start; }
.rc-badge {
  background: #e7f4fb; color: var(--c-blue-d);
  border-radius: 20px; padding: 3px 12px;
  font-size: .76rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .5px;
}
.rc-body h3 { font-size: 1.3rem; color: var(--c-navy); }
.rc-loc { color: var(--c-blue-d); font-weight: 600; font-size: .9rem; margin-top: -2px; }
.rc-desc { color: #45525c; font-size: .94rem; }
.rc-details { list-style: none; display: grid; gap: 5px; margin-top: 6px; border-top: 1px solid var(--c-border); padding-top: 12px; }
.rc-details li { font-size: .88rem; color: #45525c; }
.rc-details span { font-weight: 600; color: var(--c-navy); text-transform: uppercase; font-size: .74rem; letter-spacing: .5px; }

.ref-empty { color: var(--c-grey); font-size: 1.05rem; padding: 10px 0 4px; }
.ref-note { margin-top: 26px; font-style: italic; color: var(--c-grey); }

@media (max-width: 900px) { .ref-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .ref-grid { grid-template-columns: 1fr; } }

/* ---------- Zone d'intervention ---------- */
.zone-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.zone-areas { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.zone-area {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-blue);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.zone-area h3 { font-size: 1.1rem; color: var(--c-navy); margin-bottom: 6px; }
.zone-area p { font-size: .92rem; color: #45525c; }
.zone-map {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 380px;
  height: 100%;
}
.zone-map iframe { width: 100%; height: 100%; min-height: 380px; border: 0; display: block; }

@media (max-width: 900px) {
  .zone-layout { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 480px) {
  .zone-areas { grid-template-columns: 1fr; }
}

/* ---------- Bannière de sous-page ---------- */
.page-hero { background: var(--c-navy); color: #fff; padding-block: 66px 58px; }
.page-hero .hero-eyebrow { margin-bottom: 14px; }
.page-hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 700; margin-bottom: 14px; }
.page-hero-lead { color: #cdd8df; font-size: 1.15rem; max-width: 780px; }

/* ---------- Actualités ---------- */
.news-list { display: grid; gap: 30px; max-width: 920px; }
.news-item {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 28px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.news-item.no-img { grid-template-columns: 1fr; }
.news-media { background: #e6edf2; }
.news-media img { width: 100%; height: 100%; object-fit: cover; min-height: 210px; }
.news-body { padding: 26px 30px; }
.news-date { color: var(--c-blue-d); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; font-size: .82rem; margin-bottom: 6px; }
.news-body h2 { font-size: 1.5rem; color: var(--c-navy); margin-bottom: 12px; }
.news-text p { color: #45525c; margin-bottom: 10px; }
@media (max-width: 680px) {
  .news-item { grid-template-columns: 1fr; }
  .news-media img { min-height: 190px; }
}

/* ---------- CTA / Contact ---------- */
.cta { background: var(--c-navy); color: var(--c-white); padding-block: 74px; }
.cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.cta-text h2 { margin-bottom: 12px; }
.cta-text p { color: #c4d2da; font-size: 1.1rem; }
.contact-list { list-style: none; display: grid; gap: 16px; margin-bottom: 26px; }
.contact-list li { display: flex; flex-direction: column; }
.ci-label { font-family: var(--font-head); text-transform: uppercase; letter-spacing: 1px; font-size: .8rem; color: var(--c-blue); }
.ci-value { font-size: 1.1rem; color: var(--c-white); }
a.ci-value:hover { color: var(--c-blue); }

/* ---------- Page Mentions légales ---------- */
.legal { padding-block: 64px 80px; }
.legal-inner { max-width: 820px; }
.legal-title { font-size: clamp(2rem, 5vw, 3rem); font-weight: 700; margin-bottom: 6px; }
.legal-updated { color: var(--c-grey); font-size: .9rem; margin-bottom: 30px; }
.legal h2 {
  font-size: 1.45rem;
  color: var(--c-navy);
  margin-top: 38px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-border);
}
.legal p { color: #45525c; margin-bottom: 14px; }
.legal-list { list-style: none; display: grid; gap: 10px; margin-bottom: 16px; }
.legal-list li { padding-left: 18px; position: relative; color: #45525c; }
.legal-list li::before { content: "›"; position: absolute; left: 0; color: var(--c-blue); font-weight: 700; }
.legal-list strong { color: var(--c-navy); }
.legal-hint { font-size: .9rem; color: var(--c-grey); }
.legal-back { margin-top: 40px; }

/* ---------- Pied de page ---------- */
.site-footer { background: #0a1f2a; color: #9fb3c0; padding-block: 40px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; }
.footer-logo { height: 34px; background: #fff; padding: 5px 9px; border-radius: 5px; margin-bottom: 8px; }
.footer-brand p { font-size: .9rem; max-width: 320px; }
.social-link { display: inline-flex; align-items: center; gap: 9px; margin-top: 14px; color: #cfe6f5; text-decoration: none; font-family: var(--font-head); text-transform: uppercase; letter-spacing: 1px; font-size: .92rem; }
.social-link:hover { color: var(--c-blue); }
.social-link svg { width: 24px; height: 24px; flex-shrink: 0; }
.footer-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-nav a { font-family: var(--font-head); text-transform: uppercase; letter-spacing: 1px; }
.footer-nav a:hover { color: var(--c-blue); }
.footer-legal { width: 100%; font-size: .82rem; color: #5f7682; border-top: 1px solid #14323f; padding-top: 18px; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px) {
  .nav-menu { gap: 0; }
  .nav-menu a { padding: 10px 10px; font-size: .95rem; }
}
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .cards, .ref-grid { grid-template-columns: repeat(2, 1fr); }
  .split, .org-cols, .cta-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 740px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute; top: 78px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--c-navy);
    border-bottom: 3px solid var(--c-blue);
    padding: 12px 16px 18px;
    display: none;
  }
  .nav-menu.is-open { display: flex; }
  .nav-menu a { padding: 14px 12px; font-size: 1.05rem; }
  .hero-content { padding-block: 74px 84px; }
  .section { padding-block: 62px; }
}
@media (max-width: 480px) {
  .cards, .ref-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; }
}