/* ============================================================
   SENROC GROUP — feuille de style partagée (multi-page)
   Charte : marine #1B3B5F · or #C9A961 · Spectral + Mulish
   ============================================================ */

:root{
  --marine:#1B3B5F;
  --marine-deep:#112A47;
  --marine-night:#0C1F36;
  --gold:#C9A961;
  --gold-soft:#D9C291;
  --ivory:#F5F2EB;
  --ivory-deep:#ECE7DA;
  --ink:#2B3340;
  --mist:#6B7B8C;
  --line-light:rgba(201,169,97,.30);
  --line-dark:rgba(27,59,95,.14);
  --maxw:1180px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Mulish",system-ui,sans-serif;
  color:var(--ink);
  background:var(--ivory);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}

/* ---------- Eyebrow / headings ---------- */
.eyebrow{
  font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;font-weight:600;
  color:var(--gold);margin:0 0 1.1rem;display:flex;align-items:center;gap:.85rem;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold);opacity:.7;}
.h2{
  font-family:"Spectral",Georgia,serif;font-weight:400;
  font-size:clamp(1.85rem,3.6vw,2.9rem);line-height:1.12;letter-spacing:-.01em;
  margin:0 0 1.4rem;color:var(--marine);
}
.lead{font-size:1.08rem;max-width:62ch;color:var(--ink);}
p.body{margin:0 0 1.15rem;max-width:62ch;}

/* ---------- Section rhythm ---------- */
.section{padding:clamp(72px,9vw,124px) 0;}
.section--marine{background:var(--marine-deep);color:#E8EEF4;}
.section--marine .h2{color:#fff;}
.section--marine .lead,.section--marine p.body{color:#C6D4E1;}
.section--ivory-deep{background:var(--ivory-deep);}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .4s var(--ease),border-color .4s var(--ease);
  border-bottom:1px solid transparent;}
.nav.is-scrolled{background:rgba(12,31,54,.94);backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid rgba(201,169,97,.22);}
.nav__inner{max-width:var(--maxw);margin:0 auto;padding:18px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:baseline;gap:.6rem;color:#fff;}
.brand__mark{font-family:"Spectral",serif;font-weight:500;font-size:1.4rem;letter-spacing:.16em;}
.brand__rule{width:1px;height:18px;background:var(--gold);opacity:.7;}
.brand__sub{font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-soft);}
.nav__links{display:flex;align-items:center;gap:2rem;list-style:none;margin:0;padding:0;}
.nav__links a{font-size:.82rem;letter-spacing:.05em;color:rgba(255,255,255,.82);
  position:relative;padding:4px 0;transition:color .25s;}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--gold);transition:width .3s var(--ease);}
.nav__links a:hover,.nav__links a[aria-current="page"]{color:#fff;}
.nav__links a:hover::after,.nav__links a[aria-current="page"]::after{width:100%;}
.nav__cta{font-size:.8rem;letter-spacing:.06em;color:var(--marine-night)!important;
  background:var(--gold);padding:.62rem 1.25rem;border-radius:2px;font-weight:600;
  transition:background .25s,transform .25s;}
.nav__cta:hover{background:var(--gold-soft);transform:translateY(-1px);}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;padding:6px;}
.nav__toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.3s;}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.6rem;font-size:.85rem;letter-spacing:.06em;
  font-weight:600;padding:.95rem 1.7rem;border-radius:2px;transition:.28s var(--ease);}
.btn--gold{background:var(--gold);color:var(--marine-night);}
.btn--gold:hover{background:var(--gold-soft);transform:translateY(-2px);}
.btn--ghost{border:1px solid rgba(255,255,255,.28);color:#fff;}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-soft);}
.btn--marine{border:1px solid var(--line-dark);color:var(--marine);}
.btn--marine:hover{border-color:var(--gold);color:var(--gold);}

/* ---------- HERO (accueil) ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:#fff;overflow:hidden;
  background:
    linear-gradient(160deg,rgba(12,31,54,.92) 0%,rgba(17,42,71,.86) 55%,rgba(14,38,64,.9) 100%),
    var(--hero-img,none),
    linear-gradient(160deg,var(--marine-night),var(--marine-deep));
  background-size:cover;background-position:center;}
.hero__grid{position:absolute;inset:0;opacity:.5;pointer-events:none;}
.hero__content{position:relative;z-index:2;padding-top:80px;}
.hero .eyebrow{color:var(--gold-soft);}
.hero .eyebrow::before{background:var(--gold-soft);}
.hero h1{font-family:"Spectral",serif;font-weight:300;font-size:clamp(2.4rem,6vw,4.5rem);
  line-height:1.05;letter-spacing:-.015em;margin:0 0 1.6rem;max-width:18ch;}
.hero h1 em{font-style:normal;color:var(--gold);}
.hero__sub{font-size:clamp(1rem,1.6vw,1.18rem);max-width:54ch;color:#C6D4E1;font-weight:300;margin:0 0 2.6rem;}
.hero__actions{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;}
.hero__coords{position:absolute;right:32px;bottom:36px;z-index:2;font-size:.66rem;letter-spacing:.24em;
  text-transform:uppercase;color:rgba(201,169,97,.65);writing-mode:vertical-rl;text-orientation:mixed;}

/* ---------- PAGE BANNER (sous-pages) ---------- */
.banner{position:relative;color:#fff;padding:calc(80px + clamp(70px,11vw,150px)) 0 clamp(60px,9vw,110px);
  background:
    linear-gradient(150deg,rgba(12,31,54,.86) 0%,rgba(17,42,71,.74) 100%),
    var(--banner-img,none),
    linear-gradient(150deg,var(--marine-night),var(--marine-deep));
  background-size:cover;background-position:center;}
.banner .eyebrow{color:var(--gold-soft);}
.banner .eyebrow::before{background:var(--gold-soft);}
.banner h1{font-family:"Spectral",serif;font-weight:300;font-size:clamp(2.1rem,5vw,3.6rem);
  line-height:1.08;letter-spacing:-.01em;margin:0 0 1rem;max-width:20ch;}
.banner p{max-width:56ch;color:#C6D4E1;font-weight:300;margin:0;font-size:1.05rem;}

/* ---------- Split (groupe) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,90px);align-items:start;}
.split__aside{font-size:.82rem;color:var(--mist);line-height:1.9;}
.split__aside strong{color:var(--marine);font-weight:600;}
.aside-rule{height:1px;background:var(--line-dark);margin:1.6rem 0;}

/* ---------- Capability cards ---------- */
.caps{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;margin-top:3rem;
  background:rgba(201,169,97,.22);border:1px solid rgba(201,169,97,.22);}
.cap{background:var(--marine-deep);padding:2.2rem 2rem;transition:background .3s;}
.cap:hover{background:#15314F;}
.cap__num{font-family:"Spectral",serif;color:var(--gold);font-size:.95rem;letter-spacing:.1em;}
.cap h3{font-family:"Spectral",serif;font-weight:500;font-size:1.25rem;color:#fff;margin:.5rem 0 .6rem;}
.cap p{margin:0;font-size:.92rem;color:#B9C7D5;}

/* ---------- Sectors ---------- */
.sectors{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;margin-top:3.4rem;}
.sector{background:#fff;border:1px solid var(--line-dark);border-radius:3px;padding:1.8rem 1.6rem;
  position:relative;overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;}
.sector::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gold);
  transform:scaleY(0);transform-origin:top;transition:transform .35s var(--ease);}
.sector:hover{transform:translateY(-4px);box-shadow:0 18px 40px -24px rgba(17,42,71,.5);border-color:var(--line-light);}
.sector:hover::before{transform:scaleY(1);}
.sector h3{font-family:"Spectral",serif;font-weight:500;font-size:1.2rem;color:var(--marine);margin:0 0 .5rem;}
.sector p{margin:0;font-size:.88rem;color:var(--mist);line-height:1.6;}

/* ---------- Pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:3.4rem;border-top:1px solid var(--line-light);}
.pillar{padding:2.4rem 1.6rem 2rem;border-right:1px solid var(--line-light);}
.pillar:last-child{border-right:0;}
.pillar__num{font-family:"Spectral",serif;font-size:2.6rem;font-weight:300;color:var(--gold);line-height:1;display:block;margin-bottom:1rem;}
.pillar h3{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:#fff;font-weight:600;margin:0 0 .8rem;}
.pillar p{margin:0;font-size:.9rem;color:#B9C7D5;}

/* ---------- Steps (approche) ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:3.2rem;}
.step{padding:2rem 1.8rem;background:#fff;border:1px solid var(--line-dark);border-radius:3px;}
.step__k{font-family:"Spectral",serif;color:var(--gold);font-size:1rem;letter-spacing:.12em;}
.step h3{font-family:"Spectral",serif;font-weight:500;font-size:1.3rem;color:var(--marine);margin:.7rem 0 .6rem;}
.step p{margin:0;font-size:.9rem;color:var(--mist);}

/* ---------- Highlights (accueil) ---------- */
.highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:3rem;}
.hl{display:block;background:#fff;border:1px solid var(--line-dark);border-radius:3px;padding:2rem 1.8rem;
  transition:transform .3s var(--ease),box-shadow .3s,border-color .3s;}
.hl:hover{transform:translateY(-4px);box-shadow:0 18px 40px -24px rgba(17,42,71,.5);border-color:var(--line-light);}
.hl__k{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:600;}
.hl h3{font-family:"Spectral",serif;font-weight:500;font-size:1.3rem;color:var(--marine);margin:.6rem 0 .5rem;}
.hl p{margin:0;font-size:.92rem;color:var(--mist);}
.hl__more{display:inline-block;margin-top:1rem;font-size:.78rem;letter-spacing:.08em;color:var(--marine);font-weight:600;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--marine-night);color:#fff;text-align:center;padding:clamp(60px,8vw,96px) 0;}
.cta-band h2{font-family:"Spectral",serif;font-weight:300;font-size:clamp(1.7rem,3.4vw,2.6rem);margin:0 0 1.6rem;color:#fff;}
.cta-band p{max-width:48ch;margin:0 auto 2rem;color:#C6D4E1;}

/* ---------- Contact ---------- */
.contact{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(40px,6vw,80px);align-items:start;}
.contact__addr{font-style:normal;line-height:2;color:var(--ink);font-size:1.02rem;}
.contact__addr a{color:var(--marine);font-weight:600;transition:color .25s;}
.contact__addr a:hover{color:var(--gold);}
.contact__label{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:.4rem;font-weight:600;}
.form{display:grid;gap:1.1rem;}
.form label{display:block;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--mist);font-weight:600;margin-bottom:.45rem;}
.form input,.form textarea{width:100%;padding:.85rem 1rem;border:1px solid var(--line-dark);border-radius:2px;
  font:inherit;color:var(--ink);background:#fff;transition:border-color .25s;}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--gold);}
.form textarea{min-height:130px;resize:vertical;}

/* ---------- Footer ---------- */
.footer{background:var(--marine-night);color:#7E94A8;padding:2.4rem 0;border-top:1px solid rgba(201,169,97,.18);}
.footer__inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;align-items:center;font-size:.78rem;letter-spacing:.04em;}
.footer__mark{font-family:"Spectral",serif;letter-spacing:.16em;color:var(--gold-soft);}
.footer a:hover{color:var(--gold-soft);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .split,.contact{grid-template-columns:1fr;}
  .sectors{grid-template-columns:repeat(2,1fr);}
  .pillars{grid-template-columns:repeat(2,1fr);border-left:1px solid var(--line-light);}
  .pillar:nth-child(2){border-right:0;}
  .pillar{border-bottom:1px solid var(--line-light);}
  .steps,.highlights,.caps{grid-template-columns:1fr;}
}
@media(max-width:720px){
  .wrap{padding:0 22px;}
  .nav__inner{padding:14px 22px;}
  .nav__links,.nav__cta{display:none;}
  .nav__toggle{display:block;}
  .nav.is-open .nav__links{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;
    background:rgba(12,31,54,.98);padding:1.4rem 22px 2rem;gap:1.2rem;border-top:1px solid rgba(201,169,97,.2);}
  .nav.is-open .nav__cta{display:inline-flex;margin-top:.6rem;width:max-content;}
  .sectors{grid-template-columns:1fr;}
  .hero__coords{display:none;}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none!important;}
}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}

/* ---------- Sélecteur de langue ---------- */
.nav__lang{font-weight:700!important;color:var(--gold-soft)!important;letter-spacing:.14em;}
.nav__lang::after{display:none!important;}
.nav__lang:hover{color:#fff!important;}

/* ---------- Logo en-tête ---------- */
.brand__logo{height:44px;width:auto;display:block;}
@media(max-width:720px){.brand__logo{height:38px;}}