@font-face{font-family:'Manrope';font-style:normal;font-weight:200 800;font-display:swap;src:url('/fonts/manrope-variable.woff2') format('woff2')}
  @font-face{font-family:'Space Grotesk';font-style:normal;font-weight:300 700;font-display:swap;src:url('/fonts/space-grotesk-variable.woff2') format('woff2')}
  html{-webkit-text-size-adjust:100%;text-size-adjust:100%}:root{--ink:#0c2b54;--muted:#54687f;--paper:#f4f8fc;--paper-2:#eaf2f9;--surface:#fff;--blue:#1f66aa;--cyan:#43abe0;--mint:#23c3a4;--neon:#0f9fdb;--line:rgba(12,43,84,.10);--grad:linear-gradient(155deg,#0c2b54,#1f66aa 46%,#43abe0);--grad-txt:linear-gradient(155deg,#0a2447 0%,#17558f 50%,#1f6cae 100%);--grad-accent:linear-gradient(155deg,#0c2b54 0%,#1f66aa 50%,#2478bb 100%);--display:'Space Grotesk',system-ui,sans-serif;--body:'Manrope',system-ui,sans-serif;--ease:cubic-bezier(.22,1,.36,1);--maxw:860px}
  [data-theme="dark"]{--blue:#5fb8e8;--ink:#e9f1fa;--muted:#9ab0c7;--paper:#071523;--paper-2:#0b2036;--surface:#0f2740;--neon:#5fe4ff;--line:rgba(255,255,255,.09);--grad-accent:linear-gradient(155deg,#8fd8f8 0%,#5fb8e8 50%,#43abe0 100%)}
  *{box-sizing:border-box;margin:0;padding:0}
  body{font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.65;-webkit-font-smoothing:antialiased;transition:background-color .4s,color .4s}
  body::after{content:"";position:fixed;inset:0;z-index:-1;background-image:radial-gradient(rgba(12,43,84,.055) 1px,transparent 1px);background-size:26px 26px}
  [data-theme="dark"] body::after{background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px)}
  a{color:var(--blue);text-decoration:none}
  .wrap{max-width:var(--maxw);margin-inline:auto;padding:0 24px}
  header{position:sticky;top:0;z-index:20;padding:15px 0;background:color-mix(in srgb,var(--paper) 80%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
  .nav{max-width:var(--maxw);margin-inline:auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:14px}
  .brand{display:block}
  .logo-full{height:44px;width:auto;display:block}
  .logo-full.dark{display:none}
  [data-theme="dark"] .logo-full.light{display:none}
  [data-theme="dark"] .logo-full.dark{display:block}
  .nav-right{display:flex;align-items:center;gap:16px}
  .back{font-size:.88rem;font-weight:600;color:var(--muted)}
  .back:hover{color:var(--ink)}
.nav-blog{display:inline-flex;align-items:center;font-family:var(--display);font-weight:600;font-size:.88rem;color:var(--blue);border:1.5px solid currentColor;padding:7px 16px;border-radius:100px;transition:background .3s var(--ease),color .3s var(--ease)}
.nav-blog:hover{background:var(--blue);color:#fff}
[data-theme="dark"] .nav-blog:hover{color:var(--paper)}
/* Barre du haut : une seule ligne a toute largeur. Le logo conserve sa taille
   tant que les actions peuvent absorber la contrainte ; ce sont les gaps, les
   paddings et les tailles de police des actions qui cedent en premier. Aucun
   libelle de bouton n'est coupe ni renvoye a la ligne. */
.nav{flex-wrap:nowrap;gap:clamp(6px,1.6vw,24px)}
.brand{flex:none;min-width:0}
.nav-right{flex-wrap:nowrap;min-width:0;gap:clamp(4px,1.2vw,16px)}
.nav-right .back{white-space:nowrap;font-size:clamp(.625rem,1.56vw,.88rem)}
.nav-blog{flex:none;white-space:nowrap;padding:clamp(5px,1.2vw,7px) clamp(7px,2vw,16px);font-size:clamp(.7rem,1.5vw,.88rem)}
.nav-right .btn{white-space:nowrap;flex:none;padding:clamp(8px,1.8vw,12px) clamp(8px,2.4vw,22px);font-size:clamp(.7rem,1.5vw,.9rem);gap:clamp(3px,.9vw,9px)}
.nav .logo-full{height:clamp(22px,10vw - 26px,44px);width:auto}
.theme-toggle{width:38px;height:38px;border-radius:50%;flex:none;border:1px solid var(--line);background:var(--surface);color:var(--ink);display:grid;place-items:center;cursor:pointer;padding:0;transition:transform .35s var(--ease),border-color .35s var(--ease)}
.theme-toggle:hover{transform:translateY(-2px);border-color:var(--blue)}
.theme-toggle svg{width:18px;height:18px}
.theme-toggle .moon{display:none}
[data-theme="dark"] .theme-toggle .sun{display:none}
[data-theme="dark"] .theme-toggle .moon{display:block}
.nav-break{display:none}
/* Sous 760px la barre passe sur deux lignes : logo centre et selecteur de theme
   premiere ligne, Blog + bouton d'action en seconde. Les liens de retour sont
   masques a cette largeur, le logo assurant le retour a l'accueil. */
@media(max-width:760px){
.nav{flex-wrap:wrap;row-gap:9px;column-gap:10px}
.nav-right{display:contents}
.nav-break{display:block;flex:0 0 100%;width:100%;height:0;order:2}
.nav .brand{order:0;flex:1 1 auto;display:flex;justify-content:center;box-sizing:border-box;padding-left:44px}
.theme-toggle{order:1;width:34px;height:34px}
.nav-right .back{display:none}
.nav-blog{order:3;flex:0 0 auto}
.nav-right .btn{order:4;flex:1 1 auto;justify-content:center}
}
  .btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--display);font-weight:600;font-size:.9rem;color:#fff;background:var(--grad-txt);padding:11px 20px;border-radius:100px;box-shadow:0 10px 24px -10px rgba(31,102,170,.65);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
  .btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -10px rgba(31,102,170,.7),0 0 20px -6px var(--neon)}
  .hero{position:relative;overflow:hidden;padding:64px 0 40px}
  .hero .aurora{position:absolute;inset:0;pointer-events:none}
  .hero .aurora span{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:drift 16s ease-in-out infinite alternate}
  .hero .aurora .a{width:400px;height:400px;top:-170px;right:-70px;background:radial-gradient(circle,rgba(67,169,224,.5),transparent 65%)}
  .hero .aurora .b{width:340px;height:340px;top:-110px;left:-130px;background:radial-gradient(circle,rgba(35,195,164,.35),transparent 65%);animation-delay:-6s}
  @keyframes drift{to{transform:translate(28px,18px) scale(1.1)}}
  .hero .wrap{position:relative;z-index:1}
  .eyebrow{font-family:var(--display);font-size:.72rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--blue);display:inline-flex;align-items:center;gap:.6em}
  .eyebrow::before{content:"";width:26px;height:1.5px;background:linear-gradient(90deg,var(--cyan),var(--mint))}
  h1{font-family:var(--display);font-weight:600;font-size:clamp(1.9rem,4.8vw,2.9rem);line-height:1.08;letter-spacing:-.02em;margin:14px 0 14px}
  h1 .accent{background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent}
  .lead{color:var(--muted);font-size:1.08rem;max-width:40em}
  main section{padding:30px 0}
  h2{font-family:var(--display);font-weight:600;font-size:1.35rem;margin-bottom:16px;display:flex;align-items:flex-start;gap:12px}
  h2::before{content:"";width:9px;height:9px;margin-top:.5em;border-radius:50%;background:var(--neon);box-shadow:0 0 10px var(--neon);flex:none}
  h3{font-family:var(--display);font-weight:600}

  /* Sommaire */
  .toc{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
  .toc a{font-family:var(--display);font-weight:600;font-size:.85rem;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:100px;padding:9px 16px;transition:color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease)}
  .toc a:hover{color:var(--blue);border-color:var(--cyan);transform:translateY(-2px)}

  /* Questions */
  .faq{display:grid;gap:10px}
  .faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .3s var(--ease)}
  .faq details[open]{border-color:rgba(67,169,224,.45)}
  .faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 20px;font-family:var(--display);font-weight:600;font-size:.99rem;color:var(--ink)}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{content:"+";font-size:1.35rem;color:var(--blue);line-height:1;flex:none;transition:transform .3s var(--ease)}
  .faq details[open] summary::after{transform:rotate(45deg)}
  .faq .a{padding:0 20px 18px;color:var(--muted);font-size:.96rem}
  .faq .a p{margin-bottom:9px}
  .faq .a p:last-child{margin-bottom:0}
  .faq .a strong{color:var(--ink)}
  @keyframes faqIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
  .faq details[open] .a{animation:faqIn .38s var(--ease) both}

  /* Apparition au défilement */
  .js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
  .js .reveal.in{opacity:1;transform:none}
  .js .stagger>*{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
  .js .stagger.in>*{opacity:1;transform:none}
  .js .stagger.in>*:nth-child(1){transition-delay:.02s}
  .js .stagger.in>*:nth-child(2){transition-delay:.07s}
  .js .stagger.in>*:nth-child(3){transition-delay:.12s}
  .js .stagger.in>*:nth-child(4){transition-delay:.17s}
  .js .stagger.in>*:nth-child(n+5){transition-delay:.22s}
  @keyframes heroIn{from{opacity:0;transform:translateY(20px);filter:blur(7px)}to{opacity:1;transform:none;filter:blur(0)}}
  .js .hero .wrap>*{animation:heroIn .9s var(--ease) both}
  .js .hero .wrap>*:nth-child(2){animation-delay:.14s}
  .js .hero .wrap>*:nth-child(3){animation-delay:.26s}
  .js .hero .wrap>*:nth-child(4){animation-delay:.38s}

  .cta{margin:26px 0 70px;position:relative;overflow:hidden;background:linear-gradient(155deg,#0a2447,#123f70 55%,#1a5c9c);border-radius:20px;padding:36px 32px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap}
  .cta h2{color:#fff;font-size:1.35rem;margin:0}
  .cta h2::before{display:none}
  .cta p{opacity:.95;font-size:.94rem;margin-top:5px}
  .cta .btn{background:#fff;color:#0c2b54;box-shadow:0 10px 26px -10px rgba(0,0,0,.4)}
  footer{border-top:1px solid var(--line);padding:64px 0 40px;color:var(--muted);font-size:.85rem}
  footer a{color:var(--muted)}footer a:hover{color:var(--ink)}
  a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px}
  section[id]{scroll-margin-top:86px}
  @media(max-width:700px){}
@media(max-width:780px){.back{display:none}}
  @media(prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important}
    .js .reveal,.js .stagger>*,.js .hero .wrap>*{opacity:1!important;transform:none!important;filter:none!important}
  }

.skip-link{position:absolute;left:-9999px;top:0;z-index:300;background:var(--surface,#fff);color:var(--ink,#0c2b54);font-family:var(--display,system-ui);font-weight:600;font-size:.95rem;padding:13px 22px;border-radius:0 0 14px 0;text-decoration:none;box-shadow:0 10px 28px -12px rgba(12,43,84,.55)}.skip-link:focus{left:0;outline:2px solid var(--neon,#0f9fdb);outline-offset:2px}
  .presta-map{margin:46px 0 4px}
  .presta-map h2{margin:0 0 6px}
  .presta-map>p{color:var(--muted);font-size:.95rem;margin:0 0 18px;max-width:62ch}
  .presta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
  .presta-grid a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 20px;text-decoration:none;color:inherit;transition:border-color .3s var(--ease),transform .3s var(--ease)}
  .presta-grid a:hover{border-color:rgba(67,169,224,.45);transform:translateY(-2px)}
  .presta-grid b{display:block;font-family:var(--display);font-weight:600;font-size:.97rem;color:var(--ink);margin-bottom:5px}
  .presta-grid span{display:block;font-size:.87rem;color:var(--muted);line-height:1.55}
  @media(max-width:900px){.presta-grid{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:700px){.presta-grid{grid-template-columns:1fr}}