:root{
  /* Identité relevée sur le site actuel */
  --blue:#2b82cb; --blue-deep:#15518f; --night:#0c2f55;
  --yellow:#e8e42a; --grey:#eceef2; --ink:#1a2433; --white:#fff;
  --display:'Montserrat','Arial Black',Arial,sans-serif;
  --text:'Source Sans 3','Segoe UI',Arial,sans-serif;
  --fallback:linear-gradient(135deg,#2b82cb 0%,#15518f 100%);
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{font-family:var(--text);font-size:1.0625rem;line-height:1.65;color:var(--ink);background:var(--grey)}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--yellow);outline-offset:3px}
.wrap{width:min(1140px,100% - 2.5rem);margin-inline:auto}
h1,h2,h3{font-family:var(--display);line-height:1.15}
h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;color:var(--night)}
.bar{display:block;width:64px;height:5px;background:var(--yellow);border-radius:3px;margin:1rem 0 1.25rem}
.btn{display:inline-block;font-family:var(--display);font-weight:700;font-size:.95rem;padding:.85rem 1.5rem;border-radius:999px;background:var(--yellow);color:var(--night);text-decoration:none;transition:background .2s,color .2s}
.btn:hover{background:#fff}
.btn.line{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7)}
.btn.line:hover{background:#fff;color:var(--night)}

/* Barre contact + navigation */
.top{background:var(--blue);color:#fff;font-weight:600;font-size:.85rem}
.top .wrap{display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;padding-block:.4rem}
.top a{text-decoration:none}
header{position:sticky;top:0;z-index:30;background:#fff;box-shadow:0 1px 0 rgba(12,47,85,.08)}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.5rem}
.logo img{width:72px;height:72px;object-fit:contain}
nav ul{list-style:none;padding:0;display:flex;gap:.5rem;align-items:center}
nav a,nav summary{display:block;padding:.5rem .9rem;font-size:.95rem;font-weight:600;text-decoration:none;cursor:pointer;list-style:none;border-radius:999px}
nav summary::-webkit-details-marker{display:none}
nav a:hover,nav summary:hover,nav a[aria-current]{color:var(--blue)}
nav li{position:relative}
.sub{display:none;position:absolute;top:100%;left:0;min-width:220px;background:#fff;border-radius:14px;padding:.4rem;box-shadow:0 14px 34px rgba(12,47,85,.18)}
nav details[open] .sub{display:block}
.fb{display:grid;place-items:center;width:40px;height:40px;border-radius:50%}
.fb:hover{background:var(--grey)}
.burger{display:none;background:none;border:2px solid var(--grey);border-radius:999px;padding:.4rem 1rem;font:600 .9rem var(--text);cursor:pointer}

/* Hero */
.hero{min-height:min(78vh,640px);display:flex;align-items:center;color:#fff;
  background:linear-gradient(90deg,rgba(12,47,85,.88) 0%,rgba(12,47,85,.55) 55%,rgba(12,47,85,.2) 100%),var(--img-hero) center/cover,
  radial-gradient(circle at 85% 20%,rgba(232,228,42,.25),transparent 40%),var(--fallback)}
.hero .wrap{padding-block:4rem}
.hero .in{max-width:720px}
.hero .kick{font-family:var(--display);font-weight:700;color:var(--yellow);font-size:1.1rem}
.hero blockquote{font-family:var(--display);font-weight:800;font-size:clamp(1.8rem,4.4vw,3.2rem);line-height:1.18;margin:.8rem 0 1.2rem}
.hero p{max-width:52ch;margin-bottom:1.8rem;color:#e6eef8}
.hero .acts{display:flex;gap:.8rem;flex-wrap:wrap}

section{padding-block:clamp(3rem,7vw,5.5rem)}

/* Présentation */
.intro .wrap{display:grid;grid-template-columns:1fr 1.25fr;gap:3rem}
.intro p+p{margin-top:.9rem}
.intro a.more{display:inline-block;margin-top:1.2rem;font-weight:700;color:var(--blue-deep)}

/* Cycles */
.cycles{padding-top:0}
.cycles h2{margin-bottom:1.6rem}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;align-items:start}
.tile{position:relative;display:flex;align-items:flex-end;aspect-ratio:4/5;border-radius:22px;overflow:hidden;padding:1.4rem;text-decoration:none;color:#fff;
  background:linear-gradient(to top,rgba(12,47,85,.8),transparent 55%),var(--img,none) center/cover,var(--fallback);transition:transform .3s}
.tile:nth-child(2){margin-top:2rem}
.tile:hover{transform:translateY(-4px)}
.tile span{font-family:var(--display);font-weight:800;font-size:1.8rem}
.tile span::after{content:"";display:block;width:44px;height:5px;margin-top:.5rem;background:var(--yellow);border-radius:3px}

/* Étudier */
.study .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:3.5rem;align-items:center}
.study .pic{aspect-ratio:5/4;border-radius:22px;background:var(--img-etudier) center/cover,var(--fallback)}

/* Chiffres */
.stats{color:#fff;text-align:center;background:linear-gradient(rgba(43,130,203,.9),rgba(43,130,203,.9)),var(--img-stats) center/cover,var(--blue)}
.stats h2{color:#fff;margin-bottom:2rem}
.nums{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}
.nums strong{display:block;font-family:var(--display);font-weight:800;font-size:clamp(2.4rem,5vw,3.6rem);color:var(--yellow);line-height:1}
.nums span{display:block;margin-top:.5rem;font-weight:600}

/* Actualités */
.head{display:flex;justify-content:space-between;align-items:end;gap:1rem;flex-wrap:wrap;margin-bottom:1.6rem}
.head a{font-weight:700;color:var(--blue-deep)}
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.card{display:flex;flex-direction:column;background:#fff;border-radius:18px;overflow:hidden;text-decoration:none;transition:box-shadow .2s,transform .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(12,47,85,.14)}
.thumb{aspect-ratio:16/10;background:var(--img,none) center/cover,var(--fallback)}
.card div.t{padding:1.1rem 1.2rem 1.3rem}
.card h3{font-size:1.02rem;font-weight:700;color:var(--night);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card p{margin-top:.5rem;font-size:.95rem;color:#4b5668;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag{display:inline-block;margin-bottom:.5rem;font:700 .75rem var(--display);padding:.25rem .65rem;border-radius:999px;background:#d62f2f;color:#fff}
.pager{display:flex;justify-content:center;gap:.4rem;margin-top:1.6rem}
.pager a{min-width:38px;text-align:center;padding:.35rem .7rem;border-radius:999px;background:#fff;font-weight:700;text-decoration:none}
.pager a[aria-current]{background:var(--blue);color:#fff}

/* BDE */
.bde{color:#fff;text-align:center;background:linear-gradient(rgba(12,47,85,.82),rgba(12,47,85,.82)),var(--img-bde) center/cover,var(--night)}
.bde .wrap{max-width:780px}
.bde h2{color:#fff}
.bde .bar{margin-inline:auto}
.bde p{margin-bottom:1.6rem;color:#e6eef8}

/* Pied de page */
footer{background:var(--blue-deep);color:#e6eef8;padding-block:3rem 2rem}
footer .cols{display:grid;grid-template-columns:1.3fr 1fr;gap:3rem}
footer h3{font-size:1.1rem;color:#fff;margin-bottom:.8rem}
footer form{display:flex;gap:.6rem;flex-wrap:wrap}
footer label{width:100%;font-weight:600;font-size:.9rem}
footer input{flex:1 1 200px;padding:.75rem 1rem;border:0;border-radius:999px;font:inherit}
footer button{border:0;cursor:pointer}
.base{display:flex;align-items:center;gap:.8rem;margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.2);font-weight:600}
.base img{width:44px;height:44px;object-fit:contain;background:#fff;border-radius:50%}

@media (max-width:860px){
  .intro .wrap,.study .wrap,footer .cols{grid-template-columns:1fr;gap:2rem}
  .tiles,.news{grid-template-columns:1fr}
  .tile:nth-child(2){margin-top:0}
  .tile{aspect-ratio:16/10}
  .nums{grid-template-columns:1fr 1fr}
  .burger{display:block}
  nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;padding:.5rem 1.25rem 1rem;box-shadow:0 14px 24px rgba(12,47,85,.12)}
  nav.open{display:block}
  nav ul{flex-direction:column;align-items:stretch}
  .sub{position:static;box-shadow:none;padding-left:1rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ---- Pages intérieures ---- */
.msgs{padding-top:1rem}
.msg{padding:.8rem 1.2rem;border-radius:12px;background:#e3f1e5;color:#1d5a2b;font-weight:600;margin-bottom:.5rem}
.msg.error{background:#fbe4e4;color:#8a1f1f}
.pagehead{background:#fff;padding-block:2.5rem}
.pagehead h1{font-size:clamp(1.9rem,4vw,2.8rem);font-weight:800;color:var(--night)}
.pagehead .bar{margin-bottom:0}
.prose{max-width:780px}
.prose p{margin-bottom:1rem}
.prose h3{font-size:1.3rem;margin:2rem 0 .6rem}
.prose ul{padding-left:1.3rem;margin-bottom:1rem}
.prose li{margin:.35rem 0}
.prose a{color:var(--blue-deep);font-weight:600}
.members{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1.75rem}
.member .ph,.member img{display:block;width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:18px;background:var(--fallback)}
.member h3{font-size:1.1rem;margin-top:.9rem;color:var(--night)}
.member p{color:#4b5668;font-size:.95rem}
.logos{display:flex;flex-wrap:wrap;gap:1.5rem}
.logos>*{background:#fff;border-radius:16px;padding:1.5rem;text-decoration:none;font-weight:600}
.logos img{max-height:110px}
.fiches h2{font-size:1.4rem;margin:2.5rem 0 1rem;color:var(--blue-deep)}
.fiches img{width:100%;border-radius:14px;background:#fff}
.two{display:grid;grid-template-columns:1fr 1.4fr;gap:3rem}
.two address{font-style:normal;line-height:1.9}
form.f .fld{margin-bottom:1rem}
form.f label{display:block;font-weight:600;margin-bottom:.3rem}
form.f input:not([type=checkbox]),form.f textarea{width:100%;padding:.75rem 1rem;border:1.5px solid #cfd6e2;border-radius:12px;font:inherit;background:#fff}
form.f .chk{display:flex;flex-direction:row-reverse;justify-content:flex-end;align-items:center;gap:.6rem}
form.f .chk label{margin:0;font-weight:400}
form.f .errorlist{list-style:none;padding:0;color:#b42323;font-size:.9rem}
form.f button{border:0;cursor:pointer}
.hp{position:absolute;left:-9999px}
.article .cover{width:100%;border-radius:18px;margin-bottom:1.5rem}
.article time{color:#4b5668;font-size:.95rem}
@media (max-width:860px){.two{grid-template-columns:1fr}}