:root{
  --nuit:#0b0836; --bleu:#182767; --bleu2:#22357f; --orange:#FF5733; --orange-d:#e8461f;
  --encre:#4B535A; --encre-fort:#1c2230; --gris:#F3F5F9; --ligne:#E2E7F0; --blanc:#fff;
  --f:'Roboto',-apple-system,Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--f);color:var(--encre);background:#fff;font-size:17px;line-height:1.65}
.wrap{max-width:1180px;margin:0 auto;padding:0 26px}
a{text-decoration:none;color:var(--bleu)}
img{max-width:100%;display:block}
h1,h2,h3{color:var(--encre-fort);font-weight:900;line-height:1.1}

nav{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--ligne);box-shadow:0 1px 12px rgba(11,8,54,.05)}
.nav-in{display:flex;align-items:center;justify-content:space-between;padding:12px 26px;max-width:1180px;margin:0 auto}
.logo{display:flex;align-items:center;gap:12px}
.logo img{width:46px;height:46px;border-radius:6px}
.logo b{font-size:16px;color:var(--bleu);font-weight:900;line-height:1.1}
.logo b span{display:block;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:#8a93a8;font-weight:500}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--bleu);font-size:14.5px;font-weight:500}
.nav-links a:hover{color:var(--orange)}
.cta{background:var(--orange);color:#fff !important;padding:11px 22px;border-radius:6px;font-weight:700;font-size:14px;transition:background .2s,transform .15s}
.cta:hover{background:var(--orange-d);transform:translateY(-1px)}
@media(max-width:900px){.nav-links a:not(.cta){display:none}}

/* HERO */
.hero{position:relative;min-height:620px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url('/ecl-img/2024_05_DSC0546-09.52.39-scaled.jpg');background-size:cover;background-position:center 30%}
.hero-ov{position:absolute;inset:0;background:linear-gradient(105deg,rgba(11,8,54,.94) 0%,rgba(24,39,103,.86) 48%,rgba(24,39,103,.55) 100%)}
.hero-in{position:relative;padding:78px 0;max-width:640px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#fff;font-weight:700;background:var(--orange);padding:6px 14px;border-radius:4px;margin-bottom:22px}
.hero h1{color:#fff;font-size:clamp(32px,4.5vw,52px)}
.hero h1 span{color:var(--orange)}
.hero p{margin-top:20px;font-size:19px;color:#dfe4f2;max-width:52ch}
.hero-cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.btn-o{background:var(--orange);color:#fff;padding:15px 30px;border-radius:6px;font-weight:700;transition:background .2s,transform .15s}
.btn-o:hover{background:var(--orange-d);transform:translateY(-2px)}
.btn-l{border:2px solid #ffffff88;color:#fff;padding:15px 28px;border-radius:6px;font-weight:700;transition:border-color .2s}
.btn-l:hover{border-color:var(--orange)}

/* STATS */
.stats{background:var(--bleu)}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:26px 20px;text-align:center;color:#fff;border-right:1px solid rgba(255,255,255,.12)}
.stat:last-child{border-right:none}
.stat b{display:block;font-size:36px;font-weight:900;line-height:1;color:#fff}
.stat span{display:block;margin-top:7px;font-size:13px;color:#c3cbe4}
@media(max-width:760px){.stats-in{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:none}}

section{padding:76px 0}
.head{text-align:center;max-width:60ch;margin:0 auto 44px}
.kick{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--orange);font-weight:900;margin-bottom:10px}
h2{font-size:clamp(26px,3.4vw,38px);color:var(--bleu)}
.head p{margin-top:14px;color:var(--encre);font-size:18px}

/* FORMATIONS */
.formations{background:var(--gris)}
.f-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.f-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 18px rgba(11,8,54,.06);transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.f-card:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(11,8,54,.13)}
.f-card .ph{aspect-ratio:16/10;background-size:cover;background-position:center;position:relative}
.f-card .niv{position:absolute;top:12px;left:12px;background:var(--orange);color:#fff;font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:5px 11px;border-radius:4px}
.f-card .bd{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column}
.f-card h3{font-size:19px;color:var(--bleu);margin-bottom:9px}
.f-card p{font-size:14px;color:var(--encre)}
.f-card .prog{margin-top:12px;font-size:12.5px;color:#7480a0;border-top:1px solid var(--ligne);padding-top:12px}
.f-card .prog b{color:var(--bleu)}
.f-card .go{margin-top:16px;font-size:14px;font-weight:700;color:var(--orange)}
@media(max-width:900px){.f-grid{grid-template-columns:1fr 1fr}}
@media(max-width:580px){.f-grid{grid-template-columns:1fr}}

/* SPLIT image/texte */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split.rev .txt{order:2}
.split .ph{border-radius:14px;aspect-ratio:4/3;background-size:cover;background-position:center;box-shadow:0 16px 40px rgba(11,8,54,.14)}
.split h2{text-align:left}
.split ul{margin-top:20px;list-style:none;display:grid;gap:12px}
.split li{padding-left:32px;position:relative;font-size:16px;color:var(--encre-fort)}
.split li::before{content:"✓";position:absolute;left:0;top:1px;width:22px;height:22px;background:var(--orange);color:#fff;border-radius:50%;font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:700}
.split .btn-o{margin-top:26px;display:inline-block}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:28px}.split.rev .txt{order:0}}

/* PREUVE / témoin */
.preuve{background:var(--nuit);color:#fff}
.preuve h2{color:#fff;text-align:center}
.preuve .kick{text-align:center}
.tem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.tem{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:26px}
.tem .who{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.tem .who .av{width:52px;height:52px;border-radius:50%;background-size:cover;background-position:center;border:2px solid var(--orange)}
.tem .who b{color:#fff;font-size:15px}
.tem .who span{display:block;color:#a9b2d0;font-size:12.5px}
.tem .q{font-size:15px;color:#dfe4f2;line-height:1.55}
@media(max-width:860px){.tem-grid{grid-template-columns:1fr}}

/* VIE ÉTUDIANTE mosaïque */
.vie .mosa{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:180px;gap:12px;margin-top:12px}
.vie .m{border-radius:10px;background-size:cover;background-position:center}
.vie .m.big{grid-column:span 2;grid-row:span 2}
@media(max-width:760px){.vie .mosa{grid-template-columns:1fr 1fr;grid-auto-rows:140px}.vie .m.big{grid-column:span 2;grid-row:span 1}}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--ligne);border-radius:8px;margin-bottom:12px;background:#fff}
.faq summary{padding:19px 22px;font-weight:700;cursor:pointer;font-size:16px;color:var(--bleu);list-style:none;display:flex;justify-content:space-between}
.faq summary::after{content:"+";color:var(--orange);font-size:22px}
.faq details[open] summary::after{content:"−"}
.faq .ans{padding:16px 22px;color:var(--encre);font-size:15.5px;border-top:1px solid var(--gris)}

/* CTA final */
.final{background:linear-gradient(105deg,var(--nuit),var(--bleu));color:#fff;text-align:center}
.final h2{color:#fff}.final p{color:#dfe4f2;max-width:52ch;margin:14px auto 0;font-size:18px}
.final .hero-cta{justify-content:center;margin-top:30px}

footer{background:var(--nuit);color:#9aa3c0;padding:52px 0 36px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:34px;margin-bottom:30px}
.foot-grid .logo b{color:#fff}.foot-grid .logo b span{color:#8089a8}
footer h4{color:#fff;font-size:14px;margin-bottom:12px}
footer .col a{display:block;color:#b6bfda;margin-bottom:8px}
.legal{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-size:12.5px;color:#6b7498;line-height:1.7}
.flag{position:fixed;bottom:14px;right:14px;background:var(--orange);color:#fff;font-size:12px;font-weight:700;padding:8px 14px;border-radius:6px;z-index:200}

/* pages internes */
.pg-hero{background:var(--nuit);color:#fff;padding:56px 0 48px;position:relative;overflow:hidden}
.pg-hero .bc{font-size:13px;color:#9aa3c0;margin-bottom:14px}
.pg-hero .bc a{color:#c3cbe4}
.pg-hero h1{color:#fff;font-size:clamp(28px,3.8vw,42px);max-width:22ch}
.pg-hero h1 span{color:var(--orange)}
.pg-hero .sub{margin-top:16px;color:#dfe4f2;font-size:18px;max-width:60ch}
.pg-hero .meta{margin-top:20px;display:flex;gap:12px;flex-wrap:wrap}
.pg-hero .meta span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:7px 14px;border-radius:5px;font-size:13.5px;color:#fff}
.body-2col{display:grid;grid-template-columns:1fr 340px;gap:44px;align-items:start}
.prose h2{color:var(--bleu);font-size:26px;margin:34px 0 14px}
.prose h3{color:var(--encre-fort);font-size:19px;margin:22px 0 8px}
.prose p{margin:10px 0;font-size:16.5px}
.prose ul{margin:12px 0 12px 4px;list-style:none;display:grid;gap:9px}
.prose ul li{padding-left:28px;position:relative}
.prose ul li::before{content:"→";position:absolute;left:0;color:var(--orange);font-weight:700}
.prose .img{border-radius:12px;aspect-ratio:16/9;background-size:cover;background-position:center;margin:22px 0;box-shadow:0 12px 30px rgba(11,8,54,.12)}
.aside{position:sticky;top:80px;background:var(--gris);border-radius:12px;padding:26px;border:1px solid var(--ligne)}
.aside h3{color:var(--bleu);font-size:18px;margin-bottom:14px}
.aside .row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--ligne);font-size:14.5px}
.aside .row b{color:var(--encre-fort)}
.aside .btn-o{display:block;text-align:center;margin-top:18px}
@media(max-width:860px){.body-2col{grid-template-columns:1fr}.aside{position:static}}
.frm{display:grid;gap:14px;max-width:560px}
.frm .r2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.frm label{font-size:13px;font-weight:700;color:var(--encre-fort);display:block;margin-bottom:5px}
.frm input,.frm select,.frm textarea{width:100%;padding:12px 14px;border:1px solid var(--ligne);border-radius:7px;font-family:var(--f);font-size:15px}
.frm .cons{font-size:12.5px;color:#7480a0}
@media(max-width:560px){.frm .r2{grid-template-columns:1fr}}