.auth-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 28px;
}

.auth-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 36px;
  width: min(1040px, 100%);
  align-items: center;
}

.auth-intro h2 {
  max-width: 620px;
  margin: 0;
  color: var(--color-primary-strong);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.12;
}

.auth-intro > p:last-child {
  max-width: 560px;
  margin: 16px 0 0;
  color: var(--color-text-muted);
  font-size: 16px;
}

.auth-brand {
  margin-bottom: 54px;
}

.auth-card {
  padding: 26px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-card);
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 6px;
  margin-bottom: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-tint);
}

.auth-tab {
  min-height: 36px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  font-weight: 800;
}

.auth-tab.active {
  color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.auth-card h2 {
  margin: 0;
  color: var(--color-text-strong);
  font-size: 24px;
  font-weight: 800;
}

.auth-card p {
  margin: 6px 0 22px;
  color: var(--color-text-muted);
}

.auth-card form {
  display: grid;
  gap: 16px;
}

.auth-submit {
  width: 100%;
  margin-top: 6px;
}

.register-only {
  display: none;
}

.is-register .register-only {
  display: grid;
}

@media (max-width: 820px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }

  .auth-brand {
    margin-bottom: 28px;
  }

  .auth-intro h2 {
    font-size: 34px;
  }
}