/* Passerelle d'authentification — thème clair du site nexus-core.fr, à l'identique (décision d'Ivan du 24/10), comme la
   connexion du CRM (39_CRM_React/public/assets/app.css) : fond blanc, DM Sans partout (étiquettes en capitales
   comprises), bouton encre à angles droits, léger halo bleu-vert. Aucun style en ligne : CSP sans 'unsafe-inline'. */
:root {
  color-scheme: light;
  --n-bg: #FFFFFF; --n-bg-2: #FFFFFF; --n-surface: #F7F8FA;
  --n-line: #E6E8EE; --n-line-2: #D3D8E2;
  --n-text: #0F1E3D; --n-muted: #4A5873; --n-faint: #56657E;
  --n-teal: #0A7383; --n-teal-2: #0A7383;
  --erreur: #B42318;
  --sans: 'DM Sans', system-ui, sans-serif; --mono: 'DM Sans', system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--n-bg); color: var(--n-muted); font-family: var(--sans); font-size: 15px; line-height: 1.6;
  font-optical-sizing: auto; -webkit-font-smoothing: antialiased; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--n-teal-2); outline-offset: 2px; border-radius: 0; }
::selection { background: rgba(10, 115, 131, .18); color: var(--n-text); }

.marque { display: flex; align-items: center; gap: 10px; color: var(--n-text); }
.marque img { width: 44px; height: 44px; }
.marque-nom { font-weight: 600; font-size: 24px; letter-spacing: -.01em; }
.marque-nom b { color: var(--n-teal); font-weight: 600; }

h1 { color: var(--n-text); font-weight: 500; letter-spacing: -.022em; font-size: 24px; line-height: 1.15; margin: 0 0 20px; }
.etiquette { font: 500 11px var(--mono); text-transform: uppercase; letter-spacing: .07em; color: var(--n-faint); margin: 0 0 10px; }
.texte { margin: 0 0 18px; font-size: 14px; }

.flash { padding: 12px 16px; border-radius: 0; margin: 0 0 16px; border: 1px solid var(--n-line-2); background: var(--n-surface); }
.flash-erreur { color: var(--erreur); border-color: rgba(180, 35, 24, .3); }

label { display: block; font: 500 11px var(--mono); text-transform: uppercase; letter-spacing: .07em; color: var(--n-faint); margin-bottom: 7px; }
input { width: 100%; padding: 10px 13px; margin-bottom: 16px; border: 1px solid var(--n-line-2); border-radius: 0; font: 400 15px var(--sans);
  background: var(--n-bg); color: var(--n-text); transition: border-color .15s, box-shadow .15s; }
input:focus { outline: none; border-color: var(--n-teal-2); box-shadow: 0 0 0 3px rgba(10, 115, 131, .15); }

/* Bouton principal du site : encre, angles droits, bleu-vert au survol. */
button { display: inline-flex; align-items: center; justify-content: center; width: 100%; margin-top: 4px; font: 500 15px var(--sans);
  background: var(--n-text); color: var(--n-bg); border: 0; padding: 11px 20px; border-radius: 0; cursor: pointer; transition: background .2s; }
button:hover { background: var(--n-teal); color: #fff; }

/* Carte sur un léger halo bleu-vert. */
.page-connexion { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px; padding: 32px 16px;
  background: radial-gradient(50% 40% at 50% 35%, rgba(12, 168, 190, .12), transparent 70%), var(--n-bg); }
.carte-connexion { background: var(--n-bg-2); border: 1px solid var(--n-line-2); border-radius: 0; padding: 32px; width: 100%; max-width: 380px;
  box-shadow: 0 24px 60px -30px rgba(15, 30, 61, .4); }
.mention { font: 500 12px var(--mono); color: var(--n-faint); letter-spacing: .02em; margin: 0; }