/* En-tête Calmenta partagé - repris à l'identique de l'accueil (style.css).
   Le header est positionné en absolu dans un canevas de 1536px mis à l'échelle
   par --page-scale (voir nav.js), exactement comme la page d'accueil. */
.site-head-frame{position:relative;width:100%;max-width:1920px;margin:0 auto;aspect-ratio:1536/112;overflow:visible}
.site-head-canvas{position:absolute;top:0;left:0;width:1536px;height:112px;transform:scale(var(--page-scale,1));transform-origin:top left}

.header{position:relative;height:112px;z-index:2;background:#fff;border-radius:0 0 35% 9%/0 0 12% 40%}
.brand-image{position:absolute;left:79px;top:22px;height:73px;font-size:54px;display:flex;align-items:center;gap:.36em}
.brand-image:before{content:'';height:100%;aspect-ratio:1;flex:none;background:url('assets/logo.webp') center/contain no-repeat}
.brand-name{font-family:'Fredoka','Nunito',sans-serif;font-weight:500;line-height:1;letter-spacing:-.01em;color:var(--navy);white-space:nowrap}
.brand-name span{color:#12b37f}
.header nav{position:absolute;left:581px;top:36px;display:flex;align-items:center;gap:23px;font-size:13px;white-space:nowrap}
.header nav a{background:transparent;color:var(--ink);font-weight:400;padding:12px 0}
.header nav .active{color:var(--navy);font-weight:700;border-bottom:2px solid var(--purple)}
.header nav a:hover{color:var(--purple)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:13px;background:linear-gradient(120deg,#6c3dff,#6032ff);color:#fff;border:0;border-radius:50px;padding:15px 25px;font-weight:600;font-size:16px;transition:filter .2s,transform .2s}
.button:hover{filter:brightness(1.07);transform:translateY(-1px)}
.header-cta{position:absolute;right:77px;top:31px;height:51px;width:214px;padding:10px 14px}
.header-cta svg{width:23px;height:23px;stroke:#fff;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.menu-toggle{display:none}

@media(max-width:800px){
  .site-head-frame{aspect-ratio:auto;overflow:visible}
  .site-head-canvas{position:relative;width:100%;height:auto;transform:none}
  .header{height:87px;border-radius:0}
  .brand-image{left:20px;top:17px;height:52px;font-size:38px}
  .header-cta{display:none}
  .menu-toggle{display:block;position:absolute;right:22px;top:24px;background:#f0ebff;border-radius:9px;color:var(--purple);font-size:24px;padding:5px 10px}
  .header nav{display:none;position:absolute;left:15px;right:15px;top:76px;padding:20px;border-radius:20px;background:#fff;box-shadow:0 20px 40px #17143f25;align-items:stretch;gap:3px;font-size:16px}
  .header nav.open{display:flex;flex-direction:column}
  .header nav a{text-align:left;padding:10px}
  .header nav .active{border:0;color:var(--purple)}
}
@media(max-width:480px){
  .header{height:80px}
  .brand-image{left:20px;top:16px;height:47px;font-size:34px}
  .menu-toggle{top:20px}
}
@media(prefers-reduced-motion:reduce){.button{transition:none}}