.flashback-admin-shell {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 14px clamp(16px, 4vw, 42px);
  color: #fff;
  background: #062f62;
  box-shadow: 0 3px 14px rgba(6, 47, 98, 0.18);
}

.flashback-admin-shell-brand {
  color: #fff;
  text-decoration: none;
  font-size: 21px;
  font-weight: 800;
  white-space: nowrap;
}

.flashback-admin-shell-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.flashback-admin-shell-tabs a {
  flex: 0 0 auto;
  padding: 9px 13px;
  border-radius: 999px;
  color: #d8e8ff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

.flashback-admin-shell-tabs a:hover,
.flashback-admin-shell-tabs a:focus-visible {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.flashback-admin-shell-tabs a.active {
  color: #062f62;
  background: #fff;
}

.flashback-admin-shell-logout {
  min-height: 38px;
  margin: 0;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 8px;
  color: #fff;
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.flashback-admin-portal > .topbar {
  padding-top: 18px;
  padding-bottom: 18px;
}

.flashback-admin-portal > .topbar .brand,
.flashback-admin-portal > .topbar h1 {
  font-size: clamp(23px, 3vw, 30px);
}

/* Les routes Newsletter et Instagram réutilisent la page de l'espace
   structure. Dans le portail admin, la navigation commune remplace donc
   explicitement l'ancienne sous-navigation et sa seconde déconnexion. */
body.flashback-admin-portal #topTabs,
body.flashback-admin-portal #appPanel > .topline {
  display: none !important;
}

@media (max-width: 840px) {
  .flashback-admin-shell {
    grid-template-columns: minmax(0, 1fr) auto;
  }
  .flashback-admin-shell-tabs {
    grid-column: 1 / -1;
    grid-row: 2;
    order: 3;
  }
}

@media (max-width: 520px) {
  .flashback-admin-shell {
    padding-inline: 12px;
  }
  .flashback-admin-shell-brand { font-size: 18px; }
  .flashback-admin-shell-tabs a { padding: 8px 10px; }
}