/* Ingenium Energie — feuille de style */
:root {
  --navy-900: #021a34;
  --navy-800: #0a2744;
  --navy-700: #12385e;
  --blue-600: #0174a4;
  --blue-500: #0598c3;
  --cyan-400: #2bb8d6;
  --cyan-100: #e3f5fa;
  --ink: #0f1f30;
  --muted: #536476;
  --line: #dbe5ed;
  --bg-soft: #f4f8fb;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px -12px rgba(2, 26, 52, 0.18);
  --header-h: 76px;
  --max: 1160px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { color: var(--blue-500); }
h1, h2, h3 { line-height: 1.2; margin: 0; color: var(--navy-900); letter-spacing: -0.01em; }
p { margin: 0; }
.container { width: min(100% - 48px, var(--max)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--white); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--cyan-400); outline-offset: 3px; border-radius: 6px; }

/* ---------- En-tête ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  z-index: 50;
  transition: box-shadow .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.header.scrolled { box-shadow: 0 6px 24px -14px rgba(2, 26, 52, .35); border-color: var(--line); }
.header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand .sym { height: 46px; width: auto; }
.brand .word { height: 30px; width: auto; }
.nav { display: flex; align-items: center; gap: 34px; }
.nav ul { list-style: none; display: flex; gap: 30px; margin: 0; padding: 0; }
.nav a.link { color: var(--navy-900); font-weight: 600; font-size: 15.5px; position: relative; padding: 6px 0; }
.nav a.link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
  background: linear-gradient(90deg, var(--blue-600), var(--cyan-400));
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.nav a.link:hover::after, .nav a.link.active::after { transform: scaleX(1); }
.lang { display: flex; gap: 2px; font-size: 13px; font-weight: 700; letter-spacing: .04em; }
.lang a, .lang span { padding: 5px 8px; border-radius: 6px; color: var(--muted); }
.lang span[aria-current] { color: var(--white); background: var(--navy-900); }
.lang a:hover { color: var(--navy-900); background: var(--bg-soft); }
.menu-btn { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--navy-900); }
.menu-btn svg { width: 28px; height: 28px; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px; font-weight: 700; font-size: 15.5px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  border: 2px solid transparent; cursor: pointer;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: linear-gradient(135deg, var(--blue-600), var(--cyan-400)); color: var(--white); box-shadow: 0 10px 24px -10px rgba(5, 152, 195, .7); }
.btn-primary:hover { color: var(--white); transform: translateY(-2px); box-shadow: 0 14px 28px -10px rgba(5, 152, 195, .8); }
.btn-ghost { color: var(--white); border-color: rgba(255, 255, 255, .35); }
.btn-ghost:hover { color: var(--white); border-color: var(--white); background: rgba(255, 255, 255, .06); }

/* ---------- Accueil ---------- */
.hero {
  position: relative; overflow: hidden; color: var(--white);
  padding: calc(var(--header-h) + 90px) 0 150px;
  background:
    radial-gradient(900px 500px at 85% 20%, rgba(43, 184, 214, .22), transparent 60%),
    radial-gradient(700px 500px at 10% 100%, rgba(1, 116, 164, .30), transparent 60%),
    linear-gradient(160deg, var(--navy-800), var(--navy-900) 70%);
}
.hero .container { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--cyan-400);
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.hero h1 { color: var(--white); font-size: clamp(36px, 5.2vw, 62px); font-weight: 800; margin: 22px 0 22px; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #6fd3ea, var(--cyan-400)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: clamp(17px, 1.6vw, 20px); color: rgba(255, 255, 255, .82); max-width: 560px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.hero-visual { position: relative; display: grid; place-items: center; }
.hero-visual img { width: min(100%, 420px); filter: drop-shadow(0 30px 60px rgba(0, 0, 0, .35)); animation: float 9s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@media (prefers-reduced-motion: reduce) { .hero-visual img { animation: none; } }

.domains { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 72px; }
.domain {
  display: flex; align-items: center; gap: 14px; padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, .14); border-radius: var(--radius);
  background: rgba(255, 255, 255, .04); font-weight: 600; font-size: 15.5px;
}
.domain .ic { flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; border: 1.5px solid var(--cyan-400); color: var(--cyan-400); }
.domain .ic svg { width: 22px; height: 22px; }
.hero .container.domains-wrap { display: block; }
.hero-wave { position: absolute; left: 0; right: 0; bottom: -1px; width: 100%; height: 110px; z-index: 0; }

/* ---------- Sections ---------- */
section { padding: 120px 0; }
.section-head { max-width: 680px; margin-bottom: 60px; }
.kicker { font-size: 13px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--blue-600); }
.section-head h2 { font-size: clamp(30px, 3.6vw, 44px); font-weight: 800; margin: 14px 0 18px; }
.section-head p { color: var(--muted); font-size: 18px; }

/* Présentation */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 72px; align-items: start; }
.about-text p + p { margin-top: 18px; }
.about-text p { font-size: 18px; color: #2c3d4f; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
.stat { padding: 22px 20px; border-radius: var(--radius); background: var(--bg-soft); border: 1px solid var(--line); }
.stat strong { display: block; font-size: 34px; font-weight: 800; line-height: 1; background: linear-gradient(135deg, var(--blue-600), var(--cyan-400)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { display: block; margin-top: 10px; font-size: 14.5px; color: var(--muted); line-height: 1.4; }
.people { display: grid; gap: 18px; }
.people h3 { font-size: 13px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.person {
  display: flex; align-items: center; gap: 18px; padding: 22px 24px;
  border-radius: var(--radius); border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow);
}
.avatar { flex: none; width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; color: var(--white); background: linear-gradient(135deg, var(--navy-800), var(--blue-600)); letter-spacing: .04em; }
.person .name { font-weight: 800; font-size: 18px; color: var(--navy-900); }
.person .role { color: var(--muted); font-size: 15px; }
.person a { font-weight: 700; font-size: 15.5px; }
.regions { display: flex; align-items: center; gap: 14px; padding: 18px 24px; border-radius: var(--radius); background: var(--navy-900); color: var(--white); }
.regions .flag { flex: none; width: 34px; height: 34px; }
.regions span { font-weight: 600; }
.regions small { display: block; color: rgba(255, 255, 255, .7); font-size: 13.5px; }

/* Prestations */
#prestations { background: var(--bg-soft); position: relative; }
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service {
  background: var(--white); border: 1px solid var(--line); border-radius: 18px; padding: 32px 30px 30px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.service:hover { transform: translateY(-6px); box-shadow: 0 24px 40px -22px rgba(2, 26, 52, .35); border-color: #c5d8e6; }
.service .ic { width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center; color: var(--white); background: linear-gradient(135deg, var(--navy-800), var(--blue-600)); margin-bottom: 22px; }
.service .ic svg { width: 26px; height: 26px; }
.service h3 { font-size: 20px; font-weight: 800; }
.service .sub { color: var(--blue-600); font-weight: 600; font-size: 14.5px; margin-top: 4px; }
.service ul { margin: 16px 0 0; padding: 0; list-style: none; }
.service li { position: relative; padding-left: 22px; color: #3a4b5d; font-size: 15.5px; margin-top: 8px; }
.service li::before { content: ""; position: absolute; left: 2px; top: .62em; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan-400); }

/* Contacts */
.contact-card {
  display: grid; grid-template-columns: 1fr 1fr; overflow: hidden;
  border-radius: 24px; box-shadow: 0 30px 60px -30px rgba(2, 26, 52, .45);
}
.contact-main {
  padding: 60px 56px; color: var(--white);
  background:
    radial-gradient(600px 400px at 100% 0%, rgba(43, 184, 214, .25), transparent 60%),
    linear-gradient(160deg, var(--navy-800), var(--navy-900));
}
.contact-main .kicker { color: var(--cyan-400); }
.contact-main h2 { color: var(--white); font-size: clamp(30px, 3.4vw, 42px); font-weight: 800; margin: 14px 0 12px; }
.contact-main .quote { display: inline-block; margin-bottom: 26px; padding: 6px 14px; border-radius: 999px; background: rgba(43, 184, 214, .16); color: #8fe0f1; font-weight: 700; font-size: 14px; }
.contact-main p { color: rgba(255, 255, 255, .8); margin-bottom: 34px; max-width: 420px; }
.contact-list { padding: 56px; background: var(--white); display: grid; gap: 26px; align-content: center; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-item .ic { flex: none; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--cyan-100); color: var(--blue-600); }
.contact-item .ic svg { width: 22px; height: 22px; }
.contact-item .label { font-size: 12.5px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.contact-item .value { font-weight: 700; color: var(--navy-900); font-size: 17px; line-height: 1.5; }
.contact-item .value a { color: var(--navy-900); }
.contact-item .value a:hover { color: var(--blue-600); }
.contact-item .value small { font-weight: 500; color: var(--muted); font-size: 14.5px; }

/* Pied de page */
.footer { background: var(--navy-900); color: rgba(255, 255, 255, .7); padding: 64px 0 36px; font-size: 15px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap; padding-bottom: 36px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer-top img { height: 92px; width: auto; }
.footer-nav { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-nav a { color: rgba(255, 255, 255, .85); font-weight: 600; }
.footer-nav a:hover { color: var(--cyan-400); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding-top: 26px; font-size: 14px; }
.legal summary { cursor: pointer; color: rgba(255, 255, 255, .85); font-weight: 600; list-style: none; }
.legal summary::-webkit-details-marker { display: none; }
.legal summary::after { content: " +"; }
.legal[open] summary::after { content: " –"; }
.legal .legal-body { margin-top: 14px; max-width: 760px; line-height: 1.7; }
.legal .legal-body p + p { margin-top: 10px; }

/* Apparition au défilement */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; } .reveal.d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .domains { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 56px; }
  .services { grid-template-columns: repeat(2, 1fr); }
  .contact-card { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  :root { --header-h: 68px; }
  .menu-btn { display: block; }
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--white); border-bottom: 1px solid var(--line); box-shadow: 0 20px 30px -20px rgba(2, 26, 52, .3);
    padding: 8px 24px 22px;
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease;
  }
  .nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav a.link { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 17px; }
  .nav a.link::after { display: none; }
  .lang { margin-top: 16px; }
  .brand .sym { height: 40px; }
  .brand .word { height: 24px; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  section { padding: 84px 0; }
  .hero { padding: calc(var(--header-h) + 56px) 0 120px; }
  .domains { grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 48px; }
  .domain { flex-direction: column; text-align: center; gap: 10px; padding: 16px 10px; font-size: 14px; }
  .stats { grid-template-columns: 1fr; }
  .services { grid-template-columns: 1fr; }
  .contact-main, .contact-list { padding: 40px 28px; }
  .container { width: min(100% - 36px, var(--max)); }
}

/* Bloc zone d'intervention dans les chiffres clés */
.stat.stat-zone { background: var(--navy-900); border-color: var(--navy-900); color: var(--white); }
.stat.stat-zone .flag { width: 34px; height: 34px; margin-bottom: 12px; }
.stat.stat-zone small { display: block; color: rgba(255, 255, 255, .7); font-size: 13.5px; }
.stat.stat-zone span { color: var(--white); font-weight: 700; font-size: 15.5px; margin-top: 4px; }
.legal .legal-body h4 { color: var(--white); font-size: 14.5px; margin: 18px 0 4px; letter-spacing: .02em; }
.legal .legal-body h4:first-child { margin-top: 4px; }
.legal .legal-body p + h4 { margin-top: 18px; }
.legal .legal-body p { margin: 0; }
.legal .legal-body a { color: var(--cyan-400); }
.footer-bottom { align-items: flex-start; }

/* Photo de façade dans l'accueil */
.hero .container:first-child { grid-template-columns: 1fr 1fr; }
.hero-photo { position: relative; margin: 0; }
.hero-photo::before {
  content: ""; position: absolute; inset: -18% -12%; z-index: -1;
  background: radial-gradient(closest-side, rgba(43, 184, 214, .28), transparent 70%);
}
.hero-photo picture {
  display: block; border-radius: 22px; overflow: hidden; position: relative;
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .65), 0 0 0 6px rgba(255, 255, 255, .03);
}
.hero-photo picture::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent 65%, rgba(2, 26, 52, .35)), linear-gradient(90deg, rgba(2, 26, 52, .18), transparent 30%);
}
.hero-photo img { width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; transition: transform 1.2s cubic-bezier(.2, .7, .2, 1); }
.hero-photo:hover img { transform: scale(1.03); }
.hero-photo::after {
  content: ""; position: absolute; left: 28px; right: 28px; bottom: -3px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--blue-600), var(--cyan-400));
}
@media (max-width: 1020px) {
  .hero .container:first-child { grid-template-columns: 1fr; gap: 44px; }
  .hero-photo { max-width: 640px; }
}
@media (prefers-reduced-motion: reduce) { .hero-photo img { transition: none; } .hero-photo:hover img { transform: none; } }

/* Phases SIA */
.sia { margin-top: 96px; }
.sia-intro { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.sia-intro h3 { font-size: clamp(26px, 3vw, 34px); font-weight: 800; }
.sia-intro h3::after { content: ""; display: block; width: 56px; height: 3px; border-radius: 3px; margin: 16px auto 0; background: linear-gradient(90deg, var(--blue-600), var(--cyan-400)); }
.sia-intro p { color: var(--muted); margin-top: 16px; }
.sia-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; }
.sia-grid::before {
  content: ""; position: absolute; top: 36px; left: 8%; right: 8%; height: 2px; z-index: 0;
  background: linear-gradient(90deg, var(--navy-700), var(--cyan-400));
  opacity: .35;
}
.sia-phase { position: relative; z-index: 1; background: var(--white); border: 1px solid var(--line); border-radius: 18px; padding: 26px 26px 18px; }
.sia-head { display: flex; align-items: center; gap: 14px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.sia-num { flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 20px; color: var(--white); background: linear-gradient(135deg, var(--navy-800), var(--blue-600)); box-shadow: 0 0 0 6px var(--bg-soft); }
.sia-head h4 { margin: 0; font-size: 19px; font-weight: 800; color: var(--navy-900); }
.sia-phase ol { list-style: none; margin: 0; padding: 0; }
.sia-phase li { display: flex; gap: 14px; padding: 16px 0; }
.sia-phase li + li { border-top: 1px dashed var(--line); }
.sia-code { flex: none; min-width: 40px; height: 26px; padding: 0 8px; border-radius: 7px; display: grid; place-items: center; font-weight: 800; font-size: 13.5px; color: var(--blue-600); background: var(--cyan-100); }
.sia-phase strong { display: block; color: var(--navy-900); font-size: 15.5px; }
.sia-phase li p { color: var(--muted); font-size: 14.5px; line-height: 1.55; margin-top: 3px; }
@media (max-width: 1020px) { .sia-grid { grid-template-columns: 1fr; max-width: 640px; margin: 0 auto; } .sia-grid::before { display: none; } }

/* Pied de page centré */
.footer { padding: 72px 0 40px; }
.footer-top { flex-direction: column; justify-content: center; text-align: center; gap: 22px; }
.footer-top img { height: 104px; margin: 0 auto; }
.footer-contact { font-size: 14.5px; color: rgba(255, 255, 255, .65); }
.footer-contact a { color: rgba(255, 255, 255, .85); }
.footer-contact a:hover { color: var(--cyan-400); }
.footer-contact span { margin: 0 6px; color: var(--cyan-400); }
.footer-nav { justify-content: center; }
.footer-bottom { flex-direction: column; align-items: center; text-align: center; gap: 12px; }
.legal { width: 100%; display: flex; flex-direction: column; align-items: center; }
.legal .legal-body { text-align: left; margin: 18px auto 0; padding: 26px 30px; border-radius: 14px; background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .08); }

/* Page Offre d'emploi */
.jobs-page {
  min-height: calc(100vh - 260px); display: flex; align-items: center;
  padding: calc(var(--header-h) + 90px) 0 110px;
  background:
    radial-gradient(800px 460px at 85% 10%, rgba(43, 184, 214, .22), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(1, 116, 164, .28), transparent 60%),
    linear-gradient(160deg, var(--navy-800), var(--navy-900) 70%);
}
.jobs-card {
  max-width: 720px; margin: 0 auto; text-align: center; background: var(--white);
  border-radius: 24px; padding: 60px 48px; box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .55);
}
.jobs-card h1 { font-size: clamp(32px, 4vw, 46px); font-weight: 800; margin: 14px 0 30px; }
.jobs-card h1::after { content: ""; display: block; width: 56px; height: 3px; border-radius: 3px; margin: 18px auto 0; background: linear-gradient(90deg, var(--blue-600), var(--cyan-400)); }
.jobs-empty { display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 30px 24px; border-radius: 16px; background: var(--bg-soft); border: 1px solid var(--line); margin-bottom: 34px; }
.jobs-empty .ic { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; background: var(--cyan-100); color: var(--blue-600); }
.jobs-empty .ic svg { width: 26px; height: 26px; }
.jobs-empty p { font-size: 19px; font-weight: 600; color: var(--navy-900); }
@media (max-width: 640px) { .jobs-card { padding: 44px 24px; } }

/* Titre Présentation sur une seule ligne */
.section-head h2.about-title { font-size: clamp(24px, 2.55vw, 33px); }
@media (min-width: 641px) { .section-head h2.about-title { white-space: nowrap; } }