:root { --nuit:#0E2440; --bleu:#163A64; --or:#D4AF37; --bordeaux:#7A1F2B; --texte:#1C2430; --gris:#5B6675; --fond:#F3F6FA; --carte:#FFFFFF; --bord:#DCE3EC; --vert:#1F7A4D; --doux:#E8EEF6; }
@media (prefers-color-scheme: dark) { :root { --texte:#E8EDF4; --gris:#A7B1BF; --fond:#0B1626; --carte:#13233A; --bord:#22344F; --vert:#5FD39A; --doux:#102038; } }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--fond); color: var(--texte); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: inherit; }
.enveloppe { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
header.haut { background: var(--nuit); color: #F5F1E6; position: sticky; top: 0; z-index: 5; }
header.haut .enveloppe { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; }
.marque { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: .5px; }
.marque img { width: 34px; height: 34px; border-radius: 8px; }
nav.menu { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
nav.menu a { text-decoration: none; padding: 8px 10px; border-radius: 999px; font-size: 14px; opacity: .9; }
nav.menu a:hover, nav.menu a.ici { background: rgba(255,255,255,.12); opacity: 1; }
#ouvrir-menu { display: none; background: none; border: 1px solid rgba(255,255,255,.3); color: inherit; border-radius: 10px; padding: 6px 10px; font-size: 15px; }
@media (max-width: 760px) {
  #ouvrir-menu { display: block; }
  nav.menu { display: none; position: absolute; left: 0; right: 0; top: 60px; background: var(--nuit); flex-direction: column; padding: 8px 16px 14px; }
  nav.menu.ouvert { display: flex; }
}
.bandeau { background: linear-gradient(160deg, var(--nuit), var(--bleu)); color: #F5F1E6; padding: 48px 0 40px; }
.bandeau h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.15; margin: 0 0 12px; max-width: 760px; }
.bandeau p { font-size: 18px; max-width: 680px; opacity: .9; margin: 0 0 20px; }
.etiquette { display: inline-block; background: rgba(212,175,55,.18); color: var(--or); border: 1px solid rgba(212,175,55,.5); padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.boutons { display: flex; gap: 10px; flex-wrap: wrap; }
.bouton { display: inline-block; text-decoration: none; background: var(--or); color: #14213D; font-weight: 700; padding: 12px 20px; border-radius: 999px; border: 0; font-size: 16px; cursor: pointer; }
.bouton.clair { background: transparent; color: inherit; border: 1px solid currentColor; }
main section { padding: 34px 0; }
h2 { font-size: 26px; margin: 0 0 8px; }
h3 { font-size: 18px; margin: 0 0 6px; }
.chapeau { color: var(--gris); margin: 0 0 18px; max-width: 720px; }
.grille { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.carte { background: var(--carte); border: 1px solid var(--bord); border-radius: 16px; padding: 18px; }
.carte p { margin: 0; color: var(--gris); font-size: 15px; }
.carte .icone { font-size: 26px; display: block; margin-bottom: 8px; }
.unique { background: var(--doux); border: 1px solid var(--bord); border-radius: 20px; padding: 22px; }
ol.etapes, ul.liste { padding-left: 20px; margin: 8px 0 0; }
ol.etapes li, ul.liste li { margin: 6px 0; }
.petit { font-size: 13px; color: var(--gris); }
form.formulaire { display: grid; gap: 12px; max-width: 560px; }
form.formulaire label { font-weight: 600; font-size: 14px; display: grid; gap: 4px; }
form.formulaire input, form.formulaire select, form.formulaire textarea { font: inherit; padding: 11px 12px; border-radius: 12px; border: 1px solid var(--bord); background: var(--carte); color: var(--texte); width: 100%; }
form.formulaire textarea { min-height: 120px; resize: vertical; }
.reponse { padding: 12px 14px; border-radius: 12px; font-weight: 600; }
.reponse.ok { background: #E3F4EA; color: #1F7A4D; }
.reponse.non { background: #FBE6E9; color: #9B2335; }
.prix { font-size: 32px; font-weight: 800; color: var(--or); margin: 4px 0; }
footer.bas { background: var(--nuit); color: #C9D3E0; padding: 26px 0; margin-top: 30px; font-size: 14px; }
footer.bas a { color: #F5F1E6; }
footer.bas .colonnes { display: flex; flex-wrap: wrap; gap: 18px 36px; justify-content: space-between; }
footer.bas .liens { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.texte-long { max-width: 760px; }
.texte-long h2 { font-size: 20px; margin-top: 24px; }