html,
body {
  height: 100%;
}

.form-signin {
  max-width: 330px;
  padding: 1rem;
}

.form-signin .form-floating:focus-within {
  z-index: 2;
}

.form-signin input[type="email"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}

.form-signin input[type="password"] {
  margin-bottom: 10px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.bd-placeholder-img {
  font-size: 1.125rem;
  text-anchor: middle;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

@media (min-width: 768px) {
  .bd-placeholder-img-lg {
    font-size: 3.5rem;
  }
}

.b-example-divider {
  width: 100%;
  height: 3rem;
  background-color: rgba(0, 0, 0, .1);
  border: solid rgba(0, 0, 0, .15);
  border-width: 1px 0;
  box-shadow: inset 0 .5em 1.5em rgba(0, 0, 0, .1), inset 0 .125em .5em rgba(0, 0, 0, .15);
}

.b-example-vr {
  flex-shrink: 0;
  width: 1.5rem;
  height: 100vh;
}

.bi {
  vertical-align: -.125em;
  fill: currentColor;
}

.nav-scroller {
  position: relative;
  z-index: 2;
  height: 2.75rem;
  overflow-y: hidden;
}

.nav-scroller .nav {
  display: flex;
  flex-wrap: nowrap;
  padding-bottom: 1rem;
  margin-top: -1px;
  overflow-x: auto;
  text-align: center;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

.btn-bd-primary {
  --bd-violet-bg: #712cf9;
  --bd-violet-rgb: 112.520718, 44.062154, 249.437846;

  --bs-btn-font-weight: 600;
  --bs-btn-color: var(--bs-white);
  --bs-btn-bg: var(--bd-violet-bg);
  --bs-btn-border-color: var(--bd-violet-bg);
  --bs-btn-hover-color: var(--bs-white);
  --bs-btn-hover-bg: #6528e0;
  --bs-btn-hover-border-color: #6528e0;
  --bs-btn-focus-shadow-rgb: var(--bd-violet-rgb);
  --bs-btn-active-color: var(--bs-btn-hover-color);
  --bs-btn-active-bg: #5a23c8;
  --bs-btn-active-border-color: #5a23c8;
}

.bd-mode-toggle {
  z-index: 1500;
}

.bd-mode-toggle .dropdown-menu .active .bi {
  display: block !important;
}
/* =========================================================================
 * Pages d'authentification (connexion, 2FA, codes de secours)
 * ========================================================================= */

/* Enveloppe centrée verticalement, occupant la hauteur utile de la page. */
.auth-shell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 4rem);
  padding: 1.5rem 1rem;
}

.auth-card {
  width: 100%;
  max-width: 26rem;
  background: var(--bs-body-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 1rem;
  box-shadow: 0 .75rem 2rem rgba(0, 0, 0, .09);
  padding: 2rem;
}

/* Variante large : QR code, listes de codes de secours. */
.auth-card--wide { max-width: 34rem; }

[data-bs-theme="dark"] .auth-card {
  box-shadow: 0 .75rem 2rem rgba(0, 0, 0, .45);
}

.auth-logo {
  display: block;
  margin: 0 auto 1.25rem;
  max-width: 8.5rem;
  height: auto;
  border-radius: .5rem;
}

.auth-title {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: .35rem;
}

.auth-subtitle {
  text-align: center;
  color: var(--bs-secondary-color);
  font-size: .925rem;
  margin-bottom: 1.5rem;
}

/* Séparateur « ou » entre connexion locale et SSO. */
.auth-separator {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin: 1.25rem 0;
  color: var(--bs-secondary-color);
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.auth-separator::before,
.auth-separator::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--bs-border-color);
}

/* Bouton Microsoft — respecte la charte Microsoft (logo 4 couleurs, fond
   neutre, libellé explicite), tout en suivant le thème clair/sombre. */
.btn-microsoft {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .625rem;
  width: 100%;
  padding: .625rem 1rem;
  font-weight: 500;
  color: var(--bs-body-color);
  background: var(--bs-body-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: .5rem;
  text-decoration: none;
  transition: background-color .15s ease, border-color .15s ease;
}

.btn-microsoft:hover,
.btn-microsoft:focus-visible {
  color: var(--bs-body-color);
  background: var(--bs-tertiary-bg);
  border-color: var(--bs-secondary-color);
}

.btn-microsoft svg { flex-shrink: 0; }

/* -------------------------------------------------------------------------
 * Champ de code à usage unique
 *
 * UN SEUL <input>, et non six cases séparées : c'est la seule forme qui
 * préserve le remplissage automatique (autocomplete="one-time-code" —
 * Keeper, iOS, Android), le collage du code, et une lecture correcte par les
 * lecteurs d'écran. L'aspect « 6 emplacements » est purement visuel :
 * police monospace + letter-spacing calé sur la largeur d'un caractère (1ch),
 * et six tirets dessinés en fond.
 *
 * Pour ajuster la taille des cases, modifier --otp-slot.
 * ------------------------------------------------------------------------- */
.otp-field {
  --otp-slot: 2.5rem;
  --otp-gap: .5rem;

  display: block;
  margin: 0 auto 1rem;
  width: calc(6 * var(--otp-slot) + 6 * var(--otp-gap));
  padding: .5rem 0 .75rem;

  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--bs-body-color);

  /* Chaque caractère occupe exactement une case + son écart. */
  letter-spacing: calc(var(--otp-slot) + var(--otp-gap) - 1ch);
  text-indent: calc((var(--otp-slot) - 1ch) / 2);

  background-color: transparent;
  background-image: repeating-linear-gradient(
    to right,
    var(--bs-border-color) 0 var(--otp-slot),
    transparent var(--otp-slot) calc(var(--otp-slot) + var(--otp-gap))
  );
  background-repeat: no-repeat;
  background-size: 100% 2px;
  background-position: 0 100%;

  border: 0;
  border-radius: 0;
  outline: none;
}

.otp-field::placeholder { color: var(--bs-secondary-color); opacity: .45; }

.otp-field:focus {
  background-image: repeating-linear-gradient(
    to right,
    var(--bs-primary) 0 var(--otp-slot),
    transparent var(--otp-slot) calc(var(--otp-slot) + var(--otp-gap))
  );
}

.otp-field[aria-invalid="true"] {
  background-image: repeating-linear-gradient(
    to right,
    var(--bs-danger) 0 var(--otp-slot),
    transparent var(--otp-slot) calc(var(--otp-slot) + var(--otp-gap))
  );
}

/* Grille des codes de secours. */
.backup-codes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .5rem;
  margin: 1.25rem 0;
}

.backup-codes code {
  display: block;
  padding: .55rem;
  text-align: center;
  font-size: 1.05rem;
  letter-spacing: .04em;
  color: var(--bs-body-color);
  background: var(--bs-tertiary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: .375rem;
}