:root {
  --fond: #0b111c;
  --fond2: #0f1726;
  --carte: #131c2d;
  --trait: #22304a;
  --texte: #e8ecf6;
  --doux: #9aa6b8;
  --pale: #6d798b;
  --marque: #1f3f99;
  --ciel: #7b9cff;
  --ciel2: #9fb6ff;
  --balise: #ff8a3d;
  --vert: #3ecf8e;
  --rayon: 16px;
  --large: 1180px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--fond);
  color: var(--texte);
  font: 17px/1.6 "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ciel2); }
.conteneur { max-width: var(--large); margin: 0 auto; padding: 0 24px; }

/* ---------- en-tête ---------- */
.entete {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 17, 28, .82);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(34, 48, 74, .6);
}
.entete .conteneur { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.entete .logo img { height: 40px; width: auto; }
.entete nav { display: flex; align-items: center; gap: 26px; font-size: 15px; }
.entete nav a { color: var(--doux); text-decoration: none; }
.entete nav a:hover { color: var(--texte); }
.bouton {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px;
  background: var(--ciel); color: #0b111c !important; font-weight: 600; text-decoration: none;
  border: 1px solid transparent; transition: transform .15s, background .15s;
}
.bouton:hover { background: var(--ciel2); transform: translateY(-1px); }
.bouton.second { background: transparent; color: var(--texte) !important; border-color: var(--trait); }
.bouton.second:hover { border-color: var(--ciel); background: rgba(123, 156, 255, .08); }
.entete .bouton { padding: 9px 18px; font-size: 15px; }

/* ---------- accroche ---------- */
.accroche { position: relative; overflow: hidden; padding: 88px 0 40px; text-align: center; }
.accroche::before {
  content: ""; position: absolute; inset: -40% -10% auto; height: 820px; z-index: -1;
  background:
    radial-gradient(closest-side at 50% 45%, rgba(31, 63, 153, .55), transparent 70%),
    radial-gradient(closest-side at 70% 30%, rgba(123, 156, 255, .16), transparent 70%);
}
.pastille {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px; border: 1px solid var(--trait); border-radius: 999px;
  color: var(--doux); font-size: 14px; background: rgba(19, 28, 45, .7);
}
.pastille i { width: 8px; height: 8px; border-radius: 50%; background: var(--balise); display: inline-block; }
h1 {
  margin: 22px auto 18px; max-width: 900px;
  font-size: clamp(36px, 5.6vw, 64px); line-height: 1.07; letter-spacing: -.02em; font-weight: 650;
}
h1 em { font-style: normal; color: var(--ciel2); }
.accroche .sous { max-width: 720px; margin: 0 auto; color: var(--doux); font-size: clamp(17px, 2vw, 20px); }
.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin: 34px 0 0; }
.ecran {
  margin: 56px auto 0; max-width: 1120px;
  border: 1px solid var(--trait); border-radius: 18px; overflow: hidden;
  box-shadow: 0 40px 120px -30px rgba(31, 63, 153, .7), 0 0 0 1px rgba(255, 255, 255, .02);
  background: var(--fond2);
}
.legende { margin: 14px 0 0; color: var(--pale); font-size: 14px; text-align: center; }

/* ---------- chiffres ---------- */
.chiffres {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  margin: 64px auto 0; background: var(--trait); border: 1px solid var(--trait); border-radius: var(--rayon); overflow: hidden;
}
.chiffres div { background: var(--fond2); padding: 26px 24px; }
.chiffres b { display: block; font-size: 34px; line-height: 1.1; color: var(--texte); font-weight: 650; }
.chiffres span { color: var(--doux); font-size: 15px; }

/* ---------- sections ---------- */
section { padding: 96px 0 0; }
.surtitre { color: var(--balise); font-size: 13px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
h2 { margin: 10px 0 14px; font-size: clamp(28px, 3.6vw, 42px); line-height: 1.15; letter-spacing: -.015em; font-weight: 650; max-width: 820px; }
.chapo { color: var(--doux); max-width: 720px; margin: 0; font-size: 18px; }

.constat { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; margin-top: 40px; }
.fichiers { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.fichiers div {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  background: var(--carte); border: 1px solid var(--trait); border-radius: 12px; font-size: 15px; font-weight: 500;
}
.fichiers div::before {
  content: ""; flex: none; width: 22px; height: 28px; border-radius: 3px;
  background: linear-gradient(#b7c0ce, #b7c0ce) 5px 9px / 12px 2px no-repeat,
              linear-gradient(#b7c0ce, #b7c0ce) 5px 14px / 12px 2px no-repeat,
              linear-gradient(#b7c0ce, #b7c0ce) 5px 19px / 8px 2px no-repeat, #e8ecf6;
}
.liste { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.liste li { padding-left: 30px; position: relative; }
.liste li::before { content: ""; position: absolute; left: 4px; top: 10px; width: 9px; height: 9px; border-radius: 50%; background: var(--balise); }
.liste b { display: block; font-weight: 600; }
.liste span { color: var(--doux); font-size: 16px; }

.piliers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.pilier { background: var(--carte); border: 1px solid var(--trait); border-radius: var(--rayon); padding: 30px 28px; }
.pilier .num { color: var(--balise); font-size: 30px; font-weight: 300; }
.pilier h3 { margin: 6px 0 8px; font-size: 23px; font-weight: 600; }
.pilier p { margin: 0; color: var(--doux); font-size: 16px; }
.pilier::before { content: ""; display: block; width: 44px; height: 5px; border-radius: 3px; background: var(--c, var(--ciel)); margin-bottom: 18px; }

.fonction { display: grid; grid-template-columns: 5fr 7fr; gap: 48px; align-items: center; margin-top: 56px; }
.fonction.inverse { grid-template-columns: 7fr 5fr; }
.fonction.inverse .texte { order: 2; }
.fonction h3 { margin: 0 0 10px; font-size: 26px; font-weight: 600; line-height: 1.2; }
.fonction p { margin: 0 0 14px; color: var(--doux); }
.fonction ul { margin: 0; padding-left: 20px; color: var(--doux); font-size: 16px; }
.fonction ul li { margin: 4px 0; }
.capture {
  display: block; border: 1px solid var(--trait); border-radius: 14px; overflow: hidden; background: var(--fond2);
  box-shadow: 0 30px 80px -40px rgba(31, 63, 153, .8); cursor: zoom-in;
}

.modules { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-top: 36px; }
.modules div { background: var(--carte); border: 1px solid var(--trait); border-radius: 12px; padding: 16px; }
.modules b { display: block; font-size: 16px; font-weight: 600; }
.modules span { color: var(--doux); font-size: 14px; line-height: 1.45; display: block; margin-top: 4px; }

.equipe { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 40px; align-items: start; }
.roles { display: grid; gap: 12px; }
.role { display: flex; gap: 16px; align-items: flex-start; background: var(--carte); border: 1px solid var(--trait); border-radius: 12px; padding: 18px 20px; }
.role i { flex: none; width: 12px; height: 12px; border-radius: 50%; margin-top: 7px; background: var(--c); }
.role b { display: block; font-weight: 600; }
.role span { color: var(--doux); font-size: 16px; }
.parcours { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 26px; }
.parcours div { border: 1px solid var(--trait); border-radius: 12px; padding: 14px; text-align: center; font-size: 14px; color: var(--doux); background: var(--fond2); }
.parcours b { display: block; color: var(--c); font-size: 15px; margin-bottom: 4px; }

.garanties { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.garantie { background: var(--carte); border: 1px solid var(--trait); border-radius: var(--rayon); padding: 24px; }
.garantie b { display: flex; align-items: center; gap: 10px; font-weight: 600; margin-bottom: 6px; }
.garantie b::before {
  content: "✓"; display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%;
  background: rgba(62, 207, 142, .15); color: var(--vert); font-size: 14px; flex: none;
}
.garantie span { color: var(--doux); font-size: 16px; }

.frise { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 44px; position: relative; }
.frise::before { content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 2px; background: var(--trait); }
.etape { position: relative; padding: 34px 20px 0 0; }
.etape::before { content: ""; position: absolute; top: 2px; left: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--fond); border: 3px solid var(--ciel); }
.etape:last-child::before { border-color: var(--balise); }
.etape .date { color: var(--ciel2); font-weight: 600; font-size: 15px; }
.etape h3 { margin: 4px 0 6px; font-size: 19px; font-weight: 600; }
.etape p { margin: 0; color: var(--doux); font-size: 15px; }

.appel {
  margin: 110px 0 0; padding: 64px 40px; text-align: center; border-radius: 24px;
  border: 1px solid var(--trait);
  background: radial-gradient(closest-side at 50% 0%, rgba(31, 63, 153, .55), transparent 90%), var(--fond2);
}
.appel h2 { margin: 0 auto 12px; }
.appel p { color: var(--doux); max-width: 620px; margin: 0 auto; }

footer { margin-top: 90px; border-top: 1px solid var(--trait); padding: 34px 0 48px; color: var(--pale); font-size: 14px; }
footer .conteneur { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; align-items: center; }
footer a { color: var(--doux); }
.signature { display: flex; align-items: center; gap: 12px; }
.signature img { height: 28px; width: 28px; }

/* ---------- image agrandie ---------- */
dialog.zoom { padding: 0; border: 0; background: transparent; max-width: 96vw; max-height: 94vh; }
dialog.zoom::backdrop { background: rgba(5, 8, 14, .88); }
dialog.zoom img { max-width: 96vw; max-height: 94vh; border-radius: 10px; cursor: zoom-out; }

/* ---------- petits écrans ---------- */
@media (max-width: 960px) {
  .entete nav a:not(.bouton) { display: none; }
  .constat, .equipe, .fonction, .fonction.inverse { grid-template-columns: 1fr; gap: 28px; }
  .fonction.inverse .texte { order: 0; }
  .piliers, .garanties { grid-template-columns: 1fr; }
  .modules { grid-template-columns: repeat(2, 1fr); }
  .chiffres { grid-template-columns: repeat(2, 1fr); }
  .frise { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .frise::before { display: none; }
  section { padding-top: 72px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .accroche { padding-top: 56px; }
  .fichiers, .parcours { grid-template-columns: 1fr; }
  .frise { grid-template-columns: 1fr; }
  .appel { padding: 44px 22px; }
  .entete .logo img { height: 34px; }
  .chiffres div { padding: 18px 14px; }
  .chiffres b { font-size: 24px; }
  .chiffres span { font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .bouton { transition: none; } }