.connexion { display: grid; grid-template-columns: 1.05fr 1fr; min-height: 100vh; }

/* Panneau marque (gauche) */
.cnx-marque {
  background:
    radial-gradient(1200px 600px at -10% -10%, rgba(0,32,159,.55), transparent 60%),
    linear-gradient(160deg, #0a1b4d 0%, #071640 55%, #050f2e 100%);
  color: #dfe6f7; padding: 44px 52px; display: flex; flex-direction: column;
  position: relative; overflow: hidden;
}
.cnx-marque::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 5px;
  background: linear-gradient(90deg, var(--bleu) 0 50%, var(--rouge) 50% 100%);
}
.cnx-marque__haut { display: flex; align-items: center; gap: 16px; }
.cnx-rep { font-family: var(--serif); font-size: 15px; font-weight: 600; margin: 0; color: #fff; letter-spacing: .01em; }
.cnx-min { font-size: 12px; margin: 2px 0 0; color: #9fb0d8; line-height: 1.4; letter-spacing: .06em; text-transform: uppercase; }

.cnx-marque__centre { margin-top: auto; margin-bottom: auto; padding: 32px 0; }
.cnx-marque h1 { font-size: 52px; color: #fff; margin: 0 0 4px; letter-spacing: -.5px; }
.cnx-marque h1 span { color: var(--or); font-style: italic; font-weight: 500; }
.cnx-slogan { font-size: 16px; color: #c3cdea; max-width: 30em; line-height: 1.6; margin: 10px 0 26px; }
.cnx-points { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.cnx-points li { position: relative; padding-left: 28px; font-size: 14.5px; color: #d6ddf1; }
.cnx-points li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--or); box-shadow: 0 0 0 4px rgba(200,145,42,.18);
}
.cnx-points li::after {
  content: ""; position: absolute; left: 5px; top: 8px; width: 5px; height: 8px;
  border: solid #071640; border-width: 0 2px 2px 0; transform: rotate(42deg);
}
.cnx-pied { font-size: 12px; color: #7f8db5; letter-spacing: .05em; margin: 0; }
.cnx-ecusson img { width: 66px; height: 66px; display: block; }

/* Panneau formulaire (droite) */
.cnx-form { display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 40px; background: var(--fond); }
.cnx-form__boite { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--trait); border-radius: var(--r-lg); padding: 34px 32px; box-shadow: var(--ombre-2); }
.cnx-form__boite h2 { font-size: 24px; margin: 0 0 4px; }
.cnx-form__boite .muet { font-size: 13.5px; margin: 0 0 24px; }
.cnx-form form .champ { margin-bottom: 18px; }
.cnx-erreur { background: #fbe9ec; color: #a2172c; border: 1px solid #f0c4cc; border-radius: var(--r-sm); padding: 9px 12px; font-size: 13px; margin: 0 0 14px; }
.cnx-demo { margin-top: 22px; padding: 14px 16px; background: var(--or-clair); border: 1px solid #e6d3a8; border-radius: var(--r-sm); font-size: 12.5px; color: #6b4e12; line-height: 1.6; }
.cnx-demo strong { display: block; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 4px; color: #8a6516; }
.cnx-demo code { background: #fff; border: 1px solid #e6d3a8; border-radius: 4px; padding: 1px 6px; font-size: 12px; }
.cnx-copy { margin: 22px 0 0; font-size: 12px; color: var(--gris); text-align: center; }

@media (max-width: 860px) {
  .connexion { grid-template-columns: 1fr; }
  .cnx-marque { padding: 32px 28px; }
  .cnx-marque h1 { font-size: 40px; }
  .cnx-marque__centre { padding: 22px 0; }
  .cnx-points { display: none; }
}