:root {
  --bleu: #1f6feb;
  --bleu-clair: #e6f0fe;
  --texte: #1a1d21;
  --texte-doux: #55606b;
  --bord: #e3e7ec;
  --fond: #ffffff;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--texte);
  background: var(--fond);
  line-height: 1.65;
  font-size: 17px;
}

.bandeau {
  border-bottom: 1px solid var(--bord);
  background: #fff;
}

.bandeau .dedans {
  max-width: 760px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.marque {
  font-weight: 700;
  font-size: 19px;
  color: var(--texte);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.marque span { color: var(--bleu); }

.bandeau nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.bandeau nav a {
  color: var(--texte-doux);
  text-decoration: none;
  font-size: 15px;
}

.bandeau nav a:hover { color: var(--bleu); }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

h1 {
  font-size: 32px;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

h2 {
  font-size: 21px;
  margin: 40px 0 12px;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 17px;
  margin: 24px 0 8px;
}

p { margin: 0 0 16px; }

a { color: var(--bleu); }

.chapo {
  font-size: 19px;
  color: var(--texte-doux);
  margin-bottom: 32px;
}

.maj {
  font-size: 14px;
  color: var(--texte-doux);
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--bord);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 15.5px;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: 11px 12px;
  border-bottom: 1px solid var(--bord);
}

th {
  background: #f7f9fb;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--texte-doux);
}

ul, ol { margin: 0 0 16px; padding-left: 22px; }
li { margin-bottom: 7px; }

.encadre {
  background: var(--bleu-clair);
  border-left: 3px solid var(--bleu);
  padding: 18px 20px;
  margin: 24px 0;
  border-radius: 0 6px 6px 0;
}

.encadre p:last-child { margin-bottom: 0; }

.etapes {
  counter-reset: etape;
  list-style: none;
  padding: 0;
  margin: 24px 0;
}

.etapes li {
  counter-increment: etape;
  position: relative;
  padding: 0 0 0 44px;
  margin-bottom: 20px;
}

.etapes li::before {
  content: counter(etape);
  position: absolute;
  left: 0;
  top: 1px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bleu);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bouton {
  display: inline-block;
  background: var(--bleu);
  color: #fff;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  margin: 8px 0;
}

.bouton:hover { background: #1a5fd0; }

footer {
  border-top: 1px solid var(--bord);
  margin-top: 64px;
}

footer .dedans {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  font-size: 14px;
  color: var(--texte-doux);
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

footer a { color: var(--texte-doux); }

@media (max-width: 600px) {
  body { font-size: 16px; }
  h1 { font-size: 27px; }
  main { padding: 32px 20px 64px; }
  table { font-size: 14.5px; }
  th, td { padding: 9px 8px; }
}