/* Palette du kit PayBet (PayBet_kit_logo/LISEZMOI.txt). */
:root {
  --bleu-nuit: #0a2a66;
  --bleu-vif: #1e6fd9;
  --bleu-ciel: #5eb6ff;
  --texte: #1a1f36;
  --secondaire: #5b6478;
  --fond: #eef1f8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--texte);
  background: #fff;
  line-height: 1.55;
}

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

.conteneur { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

.entete { padding: 18px 0; border-bottom: 1px solid #e6eaf3; }
.logo { height: 44px; width: auto; display: block; }

/* ─── Accroche ─── */
.accroche { background: linear-gradient(135deg, #123e8c, #061a45); color: #fff; padding: 56px 0; }
.accroche-grille { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
h1 { font-size: 2.3rem; line-height: 1.2; margin: 0 0 16px; }
h1 span { color: var(--bleu-ciel); }
.sous-titre { font-size: 1.1rem; color: #d6e0f5; margin: 0 0 28px; max-width: 34em; }

.bouton-principal {
  display: inline-flex; align-items: center; gap: 10px;
  background: #fff; color: var(--bleu-nuit); text-decoration: none; font-weight: 700; font-size: 1.1rem;
  padding: 16px 26px; border-radius: 14px; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}
.bouton-principal:hover { background: #e3eefc; }
.bouton-principal svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }

.petit { font-size: 0.88rem; color: var(--secondaire); }
.accroche .petit { color: #b8c6e6; margin-top: 16px; }
.accroche .petit a { color: var(--bleu-ciel); }

.carte-telephone {
  background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 28px; padding: 28px 22px; max-width: 320px; justify-self: center; width: 100%;
}
.symbole { height: 54px; display: block; margin: 0 auto 20px; }
.ligne-demo {
  display: flex; justify-content: space-between; gap: 12px;
  background: rgba(255, 255, 255, 0.1); border-radius: 12px; padding: 12px 14px; margin-top: 10px; font-size: 0.95rem;
}
.ligne-demo .ok { color: #8ee0b4; }

/* ─── Sections ─── */
h2 { font-size: 1.6rem; color: var(--bleu-nuit); margin: 56px 0 20px; }
h3 { color: var(--bleu-nuit); margin: 0 0 8px; font-size: 1.1rem; }

.etapes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.etape { background: var(--fond); border-radius: 16px; padding: 22px; }
.etape p { margin: 0; color: #3a4257; }
.numero {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--bleu-nuit); color: #fff; font-weight: 700; margin-bottom: 12px;
}

.installation { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.installation ol { margin: 0; padding-left: 22px; }
.installation li { margin-bottom: 10px; }
.securite { background: #fdf6e9; border: 1px solid #f2dfb8; border-radius: 16px; padding: 20px; }
.securite p { margin: 0 0 10px; font-size: 0.93rem; }
.empreinte span { display: block; font-size: 0.8rem; color: var(--secondaire); }
.empreinte code { font-size: 0.72rem; word-break: break-all; }

.faq { display: grid; gap: 10px; }
.faq details { background: var(--fond); border-radius: 14px; padding: 0 18px; }
.faq summary {
  cursor: pointer; list-style: none; padding: 16px 28px 16px 0; font-weight: 600; color: var(--bleu-nuit); position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 13px; font-size: 1.3rem; color: var(--bleu-vif); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 16px; color: #3a4257; }

.pied { margin-top: 64px; padding: 28px 0; background: var(--fond); text-align: center; }
.pied p { margin: 6px 0; }

/* ─── Mobile ─── */
@media (max-width: 760px) {
  .accroche { padding: 36px 0; }
  .accroche-grille, .etapes, .installation { grid-template-columns: 1fr; }
  h1 { font-size: 1.75rem; }
  .bouton-principal { width: 100%; justify-content: center; }
  .carte-telephone { display: none; }
  h2 { margin-top: 40px; }
}