:root {
  color-scheme: light dark;
  --bg: #fbfaff;
  --fg: #16121f;
  --muted: #6b6478;
  --accent: #e8345a;
  --accent-2: #7b5cff;
  --carte: #ffffff;
  --bord: rgba(22, 18, 31, .1);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #120c22;
    --fg: #f1eef8;
    --muted: #a59dba;
    --carte: #1d1533;
    --bord: rgba(241, 238, 248, .12);
  }
}
:root[data-theme="dark"] {
  --bg: #120c22; --fg: #f1eef8; --muted: #a59dba; --carte: #1d1533; --bord: rgba(241, 238, 248, .12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 0 16px 4rem;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 46rem; margin: 0 auto; }

.entete { display: flex; align-items: center; gap: 1.1rem; padding: 2.5rem 0 1rem; }
.entete img { width: 96px; height: 96px; flex: none; }
.entete h1 { margin: 0; font-size: 2.6rem; letter-spacing: -.02em; line-height: 1.1; }
.accroche { margin: .2rem 0 0; font-size: 1.15rem; color: var(--muted); }

#pourquoi p { font-size: 1.08rem; }

figure.fenetre { margin: 1.8rem 0 1rem; }
figure.fenetre img {
  width: 100%; height: auto; display: block;
  border-radius: 12px;
  box-shadow: 0 18px 50px rgba(40, 10, 80, .28);
}
figcaption { font-size: .88rem; color: var(--muted); text-align: center; margin-top: .7rem; }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1.2rem; margin: 1.6rem 0; }
.cta {
  display: inline-block;
  padding: .75rem 1.4rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 600; text-decoration: none;
}
.cta:hover { filter: brightness(1.08); }
.cta.secondaire { background: var(--carte); color: var(--fg); border: 1px solid var(--bord); }
.telecharger { margin: 1.6rem 0; }
.telecharger .actions { margin: 0 0 .5rem; }
.lien { color: var(--accent); font-weight: 500; }
.meta { color: var(--muted); font-size: .9rem; }

h2 { margin: 2.6rem 0 .8rem; font-size: 1.5rem; letter-spacing: -.01em; }

.etapes { padding-left: 1.3rem; }
.etapes li { margin: .7rem 0; }

dl { margin: 0; }
dt { font-weight: 650; margin-top: 1.1rem; }
dd { margin: .2rem 0 0; color: var(--fg); }

kbd, code {
  font: .88em ui-monospace, "SF Mono", Menlo, monospace;
  padding: .05rem .4rem;
  border-radius: 5px;
  background: var(--carte);
  border: 1px solid var(--bord);
}

.faq details {
  background: var(--carte);
  border: 1px solid var(--bord);
  border-radius: 10px;
  padding: .7rem 1rem;
  margin: .6rem 0;
}
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin: .5rem 0 .2rem; }

a { color: var(--accent); }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--bord); font-size: .88rem; color: var(--muted); }
footer a { color: inherit; }

@media (max-width: 520px) {
  .entete img { width: 72px; height: 72px; }
  .entete h1 { font-size: 2.1rem; }
}