.auth-shell {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(180deg, rgba(237, 241, 248, 0.96), rgba(232, 237, 248, 0.98));
}

.auth-shell--hidden {
  display: none;
}

.auth-card {
  width: min(980px, 100%);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  background: var(--surface);
  border: 1px solid rgba(37, 63, 184, 0.12);
  border-radius: 28px;
  box-shadow: 0 30px 80px rgba(37, 63, 184, 0.14);
  overflow: hidden;
}

.auth-card__hero {
  padding: 38px;
  background: linear-gradient(180deg, #2138a6 0%, #2b48c7 100%);
  color: #fff;
}

.brand--dark .brand__subtitle {
  color: rgba(255, 255, 255, 0.72);
}

.auth-card__title {
  margin: 40px 0 12px;
  font-size: 34px;
  line-height: 1.1;
}

.auth-card__text {
  max-width: 420px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.55;
}

.auth-card__forms {
  padding: 34px;
  display: grid;
  gap: 18px;
  align-content: start;
}

.auth-tabs {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 4px;
  gap: 4px;
  border-radius: 16px;
  background: var(--surface-soft);
}

.auth-tab {
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.auth-tab--active {
  background: #fff;
  color: var(--text);
  box-shadow: 0 8px 24px rgba(37, 63, 184, 0.08);
}

.auth-message {
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.45;
}

.auth-message--hidden {
  display: none;
}

.auth-message--error {
  background: #fff4f4;
  border: 1px solid #f2caca;
  color: #b13a3a;
}

.auth-message--success {
  background: #eefaf3;
  border: 1px solid #cdecd9;
  color: #1f7f4b;
}

.auth-form {
  display: grid;
  gap: 14px;
}

.auth-form--hidden {
  display: none;
}

.auth-field {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.auth-field input,
.auth-field select {
  width: 100%;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 0 14px;
}

.auth-submit {
  margin-top: 4px;
}

body.auth-required .layout,
body.auth-required #dashboardLoading,
body.auth-required .loading-overlay {
  display: none;
}

@media (max-width: 920px) {
  .auth-card {
    grid-template-columns: 1fr;
  }

  .auth-card__hero,
  .auth-card__forms {
    padding: 28px;
  }
}