/* =========================================================
   SANTÉA — Identité visuelle (partagée par toutes les pages)
   Forêt (confiance, naturel) · Feuille (fraîcheur) · Soleil (énergie)
   ========================================================= */
:root{
  --forest:#0E4A38; --forest-2:#0A3729; --leaf:#2F9E6A; --sun:#F4A63A;
  --mist:#F3F7F1;  --white:#FFFFFF;  --ink:#10261D; --muted:#5C6F66; --line:#DCE6DE;
  --accent:var(--leaf);            /* chaque page produit peut le changer */
  --accent-soft:#E4F2EA;
  --display:"Bricolage Grotesque",ui-sans-serif,system-ui,sans-serif;
  --body:"Manrope",ui-sans-serif,system-ui,sans-serif;
  --r-lg:28px; --r-md:18px; --r-sm:12px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--mist);color:var(--ink);font:16px/1.6 var(--body);-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--display);line-height:1.04;margin:0;letter-spacing:-.02em;text-wrap:balance}
p{margin:0}
img{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding-inline:20px}
section{padding-block:72px}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.h2{font-size:clamp(30px,4.4vw,46px);color:var(--forest)}
.lead{font-size:18px;color:var(--muted)}

/* Bande d'annonce */
.strip{background:var(--forest-2);color:#DCEBE3;font-size:13px;font-weight:600;text-align:center;padding:9px 16px}
.strip b{color:var(--sun)}

/* En-tête */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(243,247,241,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--forest);font:800 27px/1 var(--display);letter-spacing:-.03em}
.logo img{width:36px;height:36px}
.logo b{color:var(--leaf);font-weight:800}
.site-header .wrap{display:grid;grid-template-columns:1fr auto 1fr}
.site-header .nav{grid-column:1;justify-self:start}
.site-header .logo{grid-column:2;justify-self:center}
.site-header .btn{grid-column:3;justify-self:end}
.nav{display:flex;gap:26px;font-weight:600;font-size:15px}
.nav a{color:var(--ink);text-decoration:none}
.nav a:hover{color:var(--leaf)}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;cursor:pointer;text-decoration:none;
  background:var(--forest);color:#fff;font:700 16px var(--body);padding:17px 28px;border-radius:999px;
  box-shadow:0 10px 24px -12px rgba(14,74,56,.7);transition:transform .15s,background .15s}
.btn:hover{background:var(--leaf);transform:translateY(-1px)}
.btn:disabled{opacity:.6;cursor:wait}
.btn-sun{background:var(--sun);color:var(--forest-2);box-shadow:0 10px 24px -12px rgba(244,166,58,.9)}
.btn-sun:hover{background:#FFB850}
.btn-sm{padding:10px 18px;font-size:14px;box-shadow:none}
.btn svg{width:18px;height:18px}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--sun);outline-offset:2px}

/* Bandeau de garanties */
.assure{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.assure > div{display:flex;gap:12px;align-items:flex-start;background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:16px}
.assure svg{flex:none;width:30px;height:30px;color:var(--leaf)}
.assure b{display:block;font-size:15px;color:var(--forest)}
.assure span{font-size:13px;color:var(--muted);line-height:1.4}

/* Étapes (séquence réelle) */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:s}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:26px}
.step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:42px;height:42px;border-radius:50%;
  background:var(--accent-soft);color:var(--forest);font:800 18px var(--display);margin-bottom:16px}
.step h3{font-size:20px;color:var(--forest);margin-bottom:6px}
.step p{color:var(--muted);font-size:15px}

/* FAQ */
.faq{max-width:780px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line);padding-block:20px}
.faq summary{font-weight:700;font-size:17px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;color:var(--forest)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:800 24px/1 var(--display);color:var(--leaf)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin-top:10px}

/* Pied de page */
.site-footer{background:var(--forest-2);color:#B9CEC4;padding-block:48px 28px;margin-top:40px}
.site-footer .top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
.site-footer .logo{color:#fff}
.site-footer .logo b{color:#7FD3A6}
.site-footer p{max-width:30em;font-size:14px;margin-top:12px}
.site-footer h4{color:#fff;font:700 13px var(--body);letter-spacing:.14em;text-transform:uppercase;margin:0 0 12px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:14px}
.site-footer a{color:#B9CEC4;text-decoration:none}
.site-footer a:hover{color:#fff}
.site-footer .legal{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;font-size:12.5px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media (max-width:900px){
  .assure{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .nav{display:none}
}
@media (max-width:520px){
  section{padding-block:52px}
  .site-header .btn{display:none}
  .assure{grid-template-columns:1fr}
  .logo{font-size:24px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}