:root {
  --encre: #102332;
  --marine: #18394b;
  --teal: #0f766e;
  --teal-fonce: #0b5f59;
  --mint: #c9f4e9;
  --fond: #f7fbfa;
  --bord: #d8e6e3;
  --doux: #52706f;
}

* { box-sizing: border-box; }

html { background: var(--fond); }

body {
  min-height: 100vh;
  margin: 0;
  padding: 24px;
  font-family: 'Figtree', system-ui, sans-serif;
  color: var(--encre);
  background: radial-gradient(1200px 600px at 50% -10%, var(--mint), transparent 60%), var(--fond);
}

.page {
  width: min(820px, 100%);
  margin: 0 auto;
  padding: 38px;
  background: #fff;
  border: 1px solid var(--bord);
  border-radius: 18px;
  box-shadow: 0 22px 55px rgba(16, 35, 50, .12);
}

.logo { display: block; width: auto; height: 36px; margin-bottom: 24px; }

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 8px 13px;
  color: var(--teal-fonce);
  border: 1px solid var(--bord);
  border-radius: 999px;
  font-weight: 650;
  text-decoration: none;
}

nav a[aria-current="page"] { color: #fff; background: var(--teal-fonce); border-color: var(--teal-fonce); }
nav a:hover, nav a:focus-visible { outline: 3px solid rgba(15, 118, 110, .22); outline-offset: 2px; }

h1, h2 { font-family: 'Figtree', system-ui, sans-serif; color: var(--encre); }
h1 { margin: 0 0 12px; font-size: clamp(1.65rem, 4vw, 2.2rem); line-height: 1.15; }
h2 { margin: 30px 0 10px; font-size: 1.2rem; }
p, li { color: var(--marine); font-size: 1rem; line-height: 1.7; }
p { margin: 0 0 14px; }
ul { margin: 8px 0 18px; padding-left: 22px; }
li + li { margin-top: 7px; }

.chapeau { color: var(--doux); font-size: 1.06rem; }
.information {
  margin: 22px 0;
  padding: 16px 18px;
  background: #e9f5f2;
  border-left: 4px solid var(--teal);
  border-radius: 0 10px 10px 0;
}
.information p:last-child { margin-bottom: 0; }

a { color: var(--teal-fonce); text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid rgba(15, 118, 110, .25); outline-offset: 3px; }

.retour {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  margin-top: 22px;
  padding: 10px 16px;
  color: #fff;
  background: var(--teal-fonce);
  border-radius: 9px;
  font-weight: 700;
  text-decoration: none;
}

footer { margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--bord); color: var(--doux); }
footer p { color: var(--doux); font-size: .9rem; }

@media (max-width: 620px) {
  body { padding: 12px; }
  .page { padding: 25px 20px; border-radius: 14px; }
  nav { display: grid; grid-template-columns: 1fr; }
  nav a { border-radius: 9px; }
}