.auth-card {
  width: min(440px, 100%);
  padding: clamp(20px, 3.5vw, 30px);
  border: 1px solid var(--glass-brd);
  border-radius: var(--r-lg);
  background: var(--panel);
  box-shadow: var(--shadow);
  position: relative;
  z-index: 1;
  /* Dernier recours sans défilement de page : la carte défile, bornée par sa rangée de grille (un calcul en svh se tromperait selon la langue et le point de rupture). */
  max-height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.auth-card__tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  margin-bottom: var(--gap);
  border: 1px solid var(--glass-brd);
  border-radius: var(--pill);
  background: var(--glass);
}

.auth-tab {
  border: 0;
  background: none;
  color: var(--muted);
  font-weight: 600;
  font-size: .9rem;
  min-height: 44px;
  border-radius: var(--pill);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.auth-tab--active {
  background: var(--grad);
  color: #04140a;
}

.auth-panel__title {
  font-size: 1.25rem;
  margin-bottom: 6px;
}

.auth-form {
  display: grid;
  gap: var(--gap-sm);
}

.auth-form--inline {
  margin-top: var(--gap-sm);
  padding-top: var(--gap-sm);
  border-top: 1px solid var(--line);
}

.auth-form__intro {
  font-size: .84rem;
  color: var(--muted);
}

.auth-form__actions {
  display: flex;
  gap: var(--gap-xs);
}

.auth-form__actions .btn { flex: 1; }

.auth-links {
  display: grid;
  justify-items: center;
  gap: 2px;
  margin-top: var(--gap-xs);
}

.auth-link {
  border: 0;
  background: none;
  color: var(--emerald);
  font-size: .8rem;
  text-align: center;
  cursor: pointer;
  padding: 4px 0;
  transition: color var(--dur) var(--ease);
}

.auth-link:hover { color: var(--lime); }

.auth-details > summary {
  list-style: none;
  cursor: pointer;
  font-size: .8rem;
  color: var(--muted);
  padding: 6px 0;
  transition: color var(--dur) var(--ease);
}

.auth-details > summary::-webkit-details-marker { display: none; }
.auth-details > summary::marker { content: ""; }
.auth-details > summary:hover { color: var(--emerald); }
.auth-details > summary::after { content: " ▾"; font-size: var(--fs-xs); }
.auth-details[open] > summary::after { content: " ▴"; }

.input--code {
  text-align: center;
  font-size: 1.35rem;
  letter-spacing: .35em;
  padding-left: calc(14px + .35em);
}

.auth-step {
  display: grid;
  gap: var(--gap-sm);
}

.auth-step__count {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (min-width: 1024px) {
  body[data-auth-panel="panel-register"] .auth-card {
    width: min(760px, 100%);
    padding: 20px clamp(20px, 3.5vw, 30px);
  }

  body[data-auth-panel="panel-register"] .auth-card__tabs {
    margin-bottom: var(--gap-sm);
  }

  #panel-register .auth-step {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: var(--gap-lg);
    row-gap: var(--gap);
    align-items: start;
  }

  /* Dissout la rangée nom / prénom dans les deux colonnes de l’étape. */
  #panel-register .field-row {
    display: contents;
  }

  #panel-register .pwd-strength {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: var(--gap-xs);
  }

  #panel-register .auth-step > .field__hint,
  #panel-register .checkbox,
  #panel-register .auth-step__count,
  #panel-register .auth-form__actions,
  #panel-register .btn--full {
    grid-column: 1 / -1;
  }

  /* Pleine largeur sous 1024 px seulement ; min-width absorbe les écarts de longueur entre langues. */
  #panel-register .btn--full {
    justify-self: center;
    width: auto;
    min-width: 240px;
  }
}

/* Mobile : densité resserrée pour que le formulaire tienne sans défiler dans la carte. Cibles ≥ 44 px. */
@media (max-width: 720px) {
  .auth-card { padding: 16px; border-radius: var(--r); }
  .auth-card__tabs { margin-bottom: 14px; }
  .auth-form { gap: 12px; }
  .auth-form .field { gap: 4px; }
  .auth-form .input { min-height: 46px; padding-block: 10px; }
  .auth-form .btn { min-height: 48px; padding-block: 12px; }
  .auth-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    column-gap: 16px;
    row-gap: 0;
    margin-top: 0;
  }
  .auth-link { min-height: 44px; padding: 0; }
  .auth-sep { margin: 0; }
}

@media (max-height: 700px) {
  .auth-card { padding: 16px; }
  .auth-form { gap: 10px; }
  .auth-card__tabs { margin-bottom: 12px; }
}

/* Pied monté par M_AuthForms dans la modale légale générée : son style vit ici. */
.legal-accept {
  flex: 0 0 auto;
  display: grid;
  gap: 12px;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--line);
  background: var(--panel);
}

@media (max-width: 720px) {
  .legal-accept { padding: 14px 18px 18px; }
}

.auth-sep {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 4px 0;
  color: var(--faint);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.auth-sep::before,
.auth-sep::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* La marque Google garde ses couleurs, imposées par ses conditions d’usage. */
.auth-google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
}

.auth-google__mark {
  flex: 0 0 auto;
}

.auth-google-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 4px;
}

.auth-google__lead {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: var(--fs-sm);
  line-height: 1.5;
}

#panel-google-signup .auth-form__intro {
  margin-bottom: 18px;
}

.google-signup__email {
  display: block;
  margin-top: 4px;
  color: var(--ink);
  overflow-wrap: anywhere;
}