:root{
  --bg:#f6f8fc;--white:#fff;--ink:#101828;--text:#344054;--muted:#667085;
  --line:#e4e7ec;--soft:#eef4ff;--blue:#155eef;--blue-dark:#0b3fb3;
  --green:#12b76a;--navy:#061a40;--shadow:0 24px 70px rgba(16,24,40,.12);
  --shadow-soft:0 12px 34px rgba(16,24,40,.08);--max:1180px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  color:var(--text);line-height:1.75;background:
  radial-gradient(circle at 8% 0,rgba(21,94,239,.16),transparent 34rem),
  radial-gradient(circle at 92% 4%,rgba(18,183,106,.11),transparent 30rem),
  linear-gradient(180deg,#fff 0,var(--bg) 46%,#fff 100%)
}
a{color:inherit;text-decoration:none}
a:focus-visible{outline:3px solid rgba(21,94,239,.35);outline-offset:4px;border-radius:10px}
.wrap,.container{width:min(calc(100% - 32px),var(--max));margin-inline:auto}
.topbar{display:none}
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(228,231,236,.78)}
.nav .wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:1.05rem;font-weight:900;letter-spacing:-.035em}
.brand::before{content:"";width:44px;height:44px;flex:0 0 auto;border-radius:15px;background:#fff url('/favicon.svg') center/30px no-repeat;box-shadow:0 14px 30px rgba(21,94,239,.22)}
.links{display:flex;align-items:center;gap:22px;color:#475467;font-size:14px;font-weight:760}
.links a:hover{color:var(--blue)}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:999px;background:var(--ink);color:#fff!important;font-weight:850;box-shadow:0 14px 30px rgba(16,24,40,.18);transition:.2s ease}
.button:hover{background:var(--blue);transform:translateY(-1px)}
.hero{padding:76px 0 52px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;width:max-content;max-width:100%;margin:0;padding:8px 12px;border:1px solid rgba(21,94,239,.16);border-radius:999px;background:rgba(255,255,255,.78);color:var(--blue-dark);font-size:13px;font-weight:880;text-transform:uppercase;letter-spacing:.06em;box-shadow:0 10px 28px rgba(16,24,40,.06)}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(18,183,106,.12)}
h1,h2,h3{color:var(--ink);line-height:1.08;letter-spacing:-.045em}
h1{max-width:980px;margin:22px 0 24px;font-size:clamp(42px,6vw,76px)}
h2{margin:56px 0 18px;font-size:clamp(30px,4vw,46px)}
h3{margin:34px 0 12px;font-size:clamp(22px,3vw,30px)}
.lead{max-width:850px;margin:0;font-size:clamp(18px,2vw,22px);color:#475467}
.content{padding:22px 0 96px}
.article{max-width:850px}
.content>.wrap:not(.article){max-width:1180px}
.content p{margin:0 0 18px}
.content li+li{margin-top:8px}
.toc,.callout{margin:28px 0;padding:26px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.92);box-shadow:var(--shadow-soft)}
.toc strong{display:block;margin-bottom:10px;color:var(--ink);font-size:18px}
.toc a{color:var(--blue);font-weight:750}
.callout{margin-top:52px;background:radial-gradient(circle at 90% 20%,rgba(21,94,239,.18),transparent 22rem),linear-gradient(145deg,#061a40,#101828);color:#d0d5dd;border:0;box-shadow:var(--shadow)}
.callout h3{margin-top:0;color:#fff}
.callout .button{margin-top:8px;background:#fff;color:var(--ink)!important}
ul,ol{padding-left:1.35rem}
.metric-grid,.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:14px 0 42px}
.card{padding:24px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.92);box-shadow:var(--shadow-soft)}
.card h3{margin-top:14px;font-size:24px}
.metric{font-size:2.15rem;font-weight:900;letter-spacing:-.05em;color:var(--blue)}
.projects-intro{max-width:760px;margin-bottom:26px;color:#475467;font-size:18px}
.project-list{display:grid;gap:28px;margin:20px 0 48px}
.project-showcase{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);overflow:hidden;border:1px solid var(--line);border-radius:30px;background:rgba(255,255,255,.96);box-shadow:var(--shadow)}
.project-showcase:nth-child(even) .project-visual{order:2}
.project-visual{position:relative;display:flex;align-items:center;justify-content:center;min-height:330px;padding:42px 18px 18px;background:linear-gradient(145deg,#edf2f8,#dfe7f1)}
.project-visual::before{content:"●  ●  ●";position:absolute;top:14px;left:20px;color:#98a2b3;font-size:11px;letter-spacing:2px}
.project-visual--eco{background:linear-gradient(145deg,#eef1e9,#dde6dc)}
.project-visual--boat{background:linear-gradient(145deg,#16365f,#0d2445)}
.project-visual img{display:block;width:100%;height:auto;max-height:100%;min-height:0;object-fit:contain;border-radius:14px;box-shadow:0 18px 38px rgba(16,24,40,.18)}
.project-copy{display:flex;flex-direction:column;justify-content:center;padding:34px}
.project-copy h3{margin:12px 0 14px;font-size:clamp(28px,3vw,38px)}
.project-copy p{margin-bottom:16px}
.project-label{display:inline-flex;width:max-content;max-width:100%;padding:7px 11px;border-radius:999px;background:var(--soft);color:var(--blue-dark);font-size:12px;font-weight:880;text-transform:uppercase;letter-spacing:.06em}
.project-points{display:grid;gap:8px;margin:4px 0 22px;padding:0;list-style:none;color:#475467;font-size:15px;font-weight:720}
.project-points li{display:flex;gap:9px;align-items:flex-start;margin:0}
.project-points li::before{content:"✓";color:var(--green);font-weight:950}
.project-link{display:inline-flex;align-items:center;justify-content:center;width:max-content;min-height:44px;padding:0 18px;border-radius:999px;background:var(--blue);color:#fff;font-weight:850;box-shadow:0 12px 26px rgba(21,94,239,.22)}
.project-link:hover{background:var(--blue-dark);transform:translateY(-1px)}
.muted{padding:18px 20px;border-left:4px solid var(--blue);border-radius:0 16px 16px 0;background:var(--soft);color:var(--muted)}
footer{padding:42px 0;background:var(--navy);color:#dbe5ff}
footer a{color:#fff;font-weight:750}
footer a:hover{text-decoration:underline}

/* En-tête et footer communs au gabarit principal */
.skip-link{position:absolute;left:-999px;top:12px;z-index:999;padding:10px 14px;background:var(--ink);color:#fff;border-radius:12px;font-weight:800}
.skip-link:focus{left:12px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(228,231,236,.78)}
.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-header .brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:900;letter-spacing:-.035em}
.site-header .brand::before{content:none}
.brand-symbol{width:44px;height:44px;flex:0 0 auto;border-radius:15px;box-shadow:0 14px 30px rgba(21,94,239,.22)}
.site-header .brand small{display:block;margin-top:-4px;font-size:12px;font-weight:750;color:var(--muted);letter-spacing:0}
.site-header .nav{position:static;margin-left:auto;display:flex;align-items:center;gap:22px;border:0;background:none;backdrop-filter:none;color:#475467;font-size:14px;font-weight:760}
.site-header .nav a:hover,.site-header .nav a[aria-current="page"]{color:var(--blue)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 24px;color:var(--muted);font-size:14px;font-weight:760}
.breadcrumb a{color:#475467}.breadcrumb a:hover{color:var(--blue)}.breadcrumb span[aria-current="page"]{color:#667085}
.header-cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:999px;background:var(--ink);color:#fff;font-size:14px;font-weight:850;box-shadow:0 14px 30px rgba(16,24,40,.18)}
.header-cta:hover{background:var(--blue)}
.menu-toggle{display:none;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);font:inherit;font-size:14px;font-weight:850;cursor:pointer}
.menu-toggle-lines{display:grid;gap:4px;width:18px}.menu-toggle-lines span{display:block;height:2px;border-radius:999px;background:var(--ink)}
.menu-toggle.is-open .menu-toggle-lines span:nth-child(1){transform:translateY(6px) rotate(45deg)}.menu-toggle.is-open .menu-toggle-lines span:nth-child(2){opacity:0}.menu-toggle.is-open .menu-toggle-lines span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{border-top:1px solid rgba(228,231,236,.78);background:rgba(255,255,255,.96)}.mobile-menu[hidden]{display:none}.mobile-menu-inner{display:grid;gap:10px;padding:14px 0 18px}.mobile-menu a{display:flex;padding:14px 16px;border:1px solid var(--line);border-radius:18px;background:#fff;color:#475467;font-weight:850}.mobile-menu .mobile-cta{background:var(--ink);color:#fff;border-color:var(--ink)}
.site-footer{padding:54px 0 34px;border-top:1px solid var(--line);background:#fff;color:var(--text)}
.footer-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr .75fr;gap:28px}.footer-title{margin:0 0 10px;color:var(--ink);font-size:18px;font-weight:900}.footer-text{margin:0;color:#475467;max-width:420px}.footer-links{display:grid;gap:8px;padding:0;margin:0;list-style:none;font-size:14px}.site-footer .footer-links a{color:#475467;font-weight:740}.site-footer .footer-links a:hover{color:var(--blue);text-decoration:none}.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.footer-bottom-links{display:flex;flex-wrap:wrap;gap:14px}.site-footer .footer-bottom-links a{color:#475467;font-weight:740}
@media(max-width:980px){.site-header .nav{display:none}.menu-toggle{display:inline-flex}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:760px){
  .header-inner{min-height:68px}.header-cta{display:none}.footer-grid{grid-template-columns:1fr}.footer-bottom{align-items:flex-start;flex-direction:column}
  .hero{padding:54px 0 36px}
  h1{font-size:clamp(38px,12vw,56px)}
  .content{padding-bottom:72px}
  .metric-grid,.cards{grid-template-columns:1fr}
  .project-showcase{grid-template-columns:1fr}.project-showcase:nth-child(even) .project-visual{order:0}.project-visual{min-height:260px}.project-visual img{min-height:0}.project-copy{padding:26px}
  .toc,.callout,.card{border-radius:20px}
}