:root {
  --encre: #1d2b2b;
  --doux: #5d6968;
  --sapin: #0e4549;
  --sapin-clair: #e6f0ee;
  --ocre: #c9822b;
  --ocre-vif: #e0a032;
  --creme: #f4efe4;
  --titre: Georgia, "Times New Roman", serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: #fff;
  color: var(--encre);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--sapin); }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--ocre-vif); outline-offset: 3px; }
.cadre { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.evitement { position: absolute; left: -999px; top: 0; background: #fff; padding: 8px 12px; z-index: 2; }
.evitement:focus { left: 8px; top: 8px; }

h2 { font: 700 1.3rem/1.25 var(--titre); color: var(--sapin); margin: 0 0 .6em; }
ul { margin: 0; padding-left: 1.1em; }
li { margin-bottom: .45em; }

/* En-tête */
.tete { background: var(--sapin); color: #fff; padding: 44px 0 52px; }
.marque { font: 700 1.25rem var(--titre); margin: 0 0 28px; }
.marque span { color: var(--ocre-vif); }
h1 { font: 700 clamp(1.9rem, 4.6vw, 3rem)/1.12 var(--titre); margin: 0 0 18px; max-width: 18em; }
.chapeau { font-size: 1.15rem; color: #dfe9e8; margin: 0 0 30px; max-width: 38em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; }
.bouton {
  display: inline-block; padding: 13px 20px; border-radius: 8px; text-decoration: none;
  font-weight: 600; border: 2px solid #fff; color: #fff;
}
.bouton small { font-weight: 400; opacity: .8; }
.bouton.principal { background: var(--ocre-vif); border-color: var(--ocre-vif); color: #1b1305; }
.bouton:hover { background: rgba(255, 255, 255, .12); }
.bouton.principal:hover { background: #f0b449; }

/* Sections */
main section.cadre { padding-top: 56px; }
.demo, .prix { display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px; align-items: center; }
.prix { grid-template-columns: 1fr 1fr; }
figure { margin: 0; }
figure img { border-radius: 10px; border: 1px solid #e3ddd0; box-shadow: 0 8px 28px rgba(14, 69, 73, .12); }
.liens { list-style: none; padding: 0; }
.liens li::before { content: "→ "; color: var(--ocre); }
.trois { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.trois h2 { padding-bottom: 8px; border-bottom: 2px solid var(--ocre); }
.prix p { margin: 0 0 1em; }

/* Contact */
.contact { background: var(--creme); border-top: 2px solid var(--ocre); margin-top: 64px; padding: 44px 0; text-align: center; }
.contact p { margin: .3em 0; font-size: 1.1rem; }
.contact .bouton { margin-top: .4em; }

/* Pied */
.pied { background: var(--sapin); color: #cfe0de; font-size: .88rem; padding: 22px 0; }
.pied a { color: #fff; }
.pied p { margin: .3em 0; }
.pied summary { cursor: pointer; margin-top: .4em; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .demo, .prix, .trois { grid-template-columns: 1fr; gap: 24px; }
  .tete { padding: 32px 0 38px; }
  .bouton { width: 100%; text-align: center; }
  main section.cadre { padding-top: 40px; }
}