/* Cosma Expérience — maquette inspirée de cosmacreation.com */
:root{
  --bleu:#1b05a2; --nuit:#12027a; --nuit2:#0a0150;
  --or:#fdc320; --or2:#f2b802;
  --creme:#fffbea; --lavande:#eef0ff;
  --texte:#1d1a33; --doux:#4a4670;
  --serif:"Cormorant Garamond",Georgia,serif;
  --sans:"Lato",Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--serif);font-size:1.22rem;line-height:1.6;color:var(--texte);background:#fff}
img{max-width:100%;display:block}
a{color:var(--bleu)}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.15;color:var(--bleu)}
h2{font-size:clamp(2rem,4vw,2.8rem);text-align:center;margin-bottom:.4em}
h3{font-size:1.6rem;margin-bottom:.4em}
.wrap{width:min(1120px,100% - 32px);margin-inline:auto}
.trait{width:70px;height:2px;background:var(--or);margin:14px auto 28px;border:0}
.sur-titre{font-family:var(--sans);text-transform:uppercase;letter-spacing:.18em;font-size:.78rem;color:var(--or2);text-align:center;font-weight:700}

/* ---------- En-tête ---------- */
.bandeau{background:var(--nuit);display:flex;align-items:center;justify-content:space-between;padding:8px 24px;position:sticky;top:0;z-index:50;box-shadow:0 2px 14px rgba(0,0,0,.25)}
.bandeau .logo img{height:52px;width:auto}
.menu{display:flex;gap:34px;list-style:none}
.menu a{font-family:var(--sans);color:#fff;text-decoration:none;text-transform:uppercase;letter-spacing:.12em;font-size:.82rem;font-weight:700;padding:6px 0;border-bottom:2px solid transparent}
.menu a:hover,.menu a[aria-current]{border-color:var(--or);color:var(--or)}
.burger{display:none;background:none;border:0;color:#fff;font-size:1.8rem;cursor:pointer}
.reseaux{display:flex;gap:8px}
.reseaux a{width:28px;height:28px;border-radius:4px;display:grid;place-items:center;color:#fff;font:700 .75rem var(--sans);text-decoration:none}
.fb{background:#3b5998}.yt{background:#a82400}.ig{background:#ea2c59}

/* ---------- Héros accueil (photo + panneau bleu) ---------- */
.heros{display:grid;grid-template-columns:1fr 1fr;min-height:88vh}
.heros-photo{background:url(images/portrait-elsa-decourt-cosma-creation-1200.webp) center/cover}
.heros-texte{background:radial-gradient(ellipse at 50% 15%,#3a2bff 0,var(--bleu) 30%,var(--nuit2) 80%);color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:60px 8%}
.heros-texte img{width:240px;margin-bottom:28px}
.heros-texte h1{color:#fff;font-size:clamp(2rem,3.4vw,2.7rem);margin-bottom:.6em}
.heros-texte p{font-size:1.3rem;margin-bottom:.9em}

/* ---------- Héros des pages intérieures ---------- */
.heros-page{position:relative;min-height:56vh;display:grid;place-items:center;text-align:center;color:#fff;background:var(--nuit2) center/cover;padding:80px 16px}
.heros-page::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,2,122,.55),rgba(10,1,80,.8))}
.heros-page>*{position:relative}
.heros-page h1{color:#fff;font-size:clamp(2.6rem,6vw,4.2rem)}
.heros-page p{font-size:1.4rem;max-width:640px;margin:10px auto 0}

/* ---------- Vagues ---------- */
.vague{display:block;width:100%;height:70px}

/* ---------- Boutons ---------- */
.bouton{display:inline-flex;align-items:center;gap:10px;background:var(--or);color:var(--nuit);font-family:var(--serif);font-style:italic;font-weight:700;font-size:1.25rem;padding:14px 32px;border-radius:40px;text-decoration:none;box-shadow:0 6px 18px rgba(253,195,32,.35);transition:transform .2s,background .2s}
.bouton:hover{transform:translateY(-2px);background:var(--or2)}
.bouton.bleu{background:var(--bleu);color:#fff;box-shadow:0 6px 18px rgba(27,5,162,.3)}

/* ---------- Sections ---------- */
section{padding:80px 0}
.creme{background:var(--creme)}
.lavande{background:var(--lavande)}
.nuit{background:radial-gradient(ellipse at 50% 0,#2a18d0 0,var(--bleu) 35%,var(--nuit2) 90%);color:#fff}
.nuit h2,.nuit h3{color:#fff}
.centre{text-align:center}
.intro{max-width:760px;margin:0 auto 40px;text-align:center;color:var(--doux)}

.deux-col{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:center}
.deux-col img{border-radius:18px;box-shadow:0 20px 50px rgba(18,2,122,.2)}
.deux-col p{margin-bottom:1em}

/* ---------- Cartes ---------- */
.cartes{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}
.carte{background:#fff;border-radius:20px;padding:34px 28px;text-align:center;box-shadow:0 10px 30px rgba(18,2,122,.12);border-top:4px solid var(--or);display:flex;flex-direction:column}
.carte img{width:160px;height:160px;object-fit:cover;border-radius:50%;margin:0 auto 20px}
.carte .duree{font-family:var(--sans);font-size:.8rem;letter-spacing:.15em;text-transform:uppercase;color:var(--or2);font-weight:700;margin-bottom:12px}
.carte p{color:var(--doux);flex:1}
.carte .prix{font-weight:700;color:var(--bleu);font-size:1.4rem;margin:16px 0}
.carte .bouton{align-self:center}
.carte a.lien{font-style:italic;font-weight:700;text-decoration:none;margin-top:12px}

/* Stage : carte horizontale */
.stage{display:grid;grid-template-columns:320px 1fr;background:#fff;border-radius:22px;overflow:hidden;box-shadow:0 12px 34px rgba(18,2,122,.14);margin-bottom:34px}
.stage img{width:100%;height:100%;object-fit:cover;min-height:260px;background:var(--lavande)}
.stage .contenu{padding:34px 38px}
.stage .infos{display:flex;flex-wrap:wrap;gap:10px 22px;font-family:var(--sans);font-size:.85rem;color:var(--doux);margin:6px 0 16px}
.stage .infos b{color:var(--bleu)}
.pastille{display:inline-block;background:var(--or);color:var(--nuit);font:700 .72rem var(--sans);text-transform:uppercase;letter-spacing:.12em;padding:4px 12px;border-radius:20px;margin-bottom:10px}

/* ---------- Étapes 1-2-3 ---------- */
.etapes{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;text-align:center}
.etapes img{width:110px;margin:0 auto 18px}
.etapes p{color:inherit;opacity:.9}

/* ---------- Citation ---------- */
.citation{font-size:clamp(1.6rem,3vw,2.2rem);font-style:italic;text-align:center;max-width:820px;margin:auto;color:var(--bleu)}
.citation cite{display:block;font-size:1.1rem;color:var(--or2);margin-top:14px;font-style:normal}

/* ---------- Témoignages ---------- */
.temoins{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.temoin{background:#fff;border-radius:20px;padding:30px;box-shadow:0 10px 30px rgba(18,2,122,.1);font-style:italic}
.temoin strong{display:block;font-style:normal;color:var(--bleu);margin-top:14px}

/* ---------- FAQ ---------- */
details{background:#fff;border-radius:14px;padding:18px 24px;margin-bottom:14px;box-shadow:0 4px 16px rgba(18,2,122,.08)}
summary{cursor:pointer;font-weight:700;color:var(--bleu);font-size:1.3rem}
details p{margin-top:10px;color:var(--doux)}

/* ---------- Pied de page ---------- */
footer{background:var(--nuit2);color:#cfcbf5;padding:60px 0 24px;font-size:1.05rem}
footer .grille{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px}
footer h3{color:var(--or);font-size:1.3rem}
footer a{color:#fff}
footer img{width:200px;margin-bottom:12px}
footer .bas{text-align:center;border-top:1px solid rgba(255,255,255,.15);margin-top:40px;padding-top:18px;font-family:var(--sans);font-size:.78rem;opacity:.7}

/* ---------- Mobile ---------- */
@media (max-width:860px){
  .burger{display:block}
  .reseaux{display:none}
  .menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--nuit);flex-direction:column;gap:0;padding:10px 0}
  .menu.ouvert{display:flex}
  .menu a{display:block;padding:14px 24px;border:0}
  .heros,.deux-col,.stage,footer .grille,.etapes{grid-template-columns:1fr}
  .heros-photo{min-height:60vh}
  .stage img{min-height:220px}
  .stage .contenu{padding:26px 22px}
  section{padding:56px 0}
}