.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 5rem 1.5rem 1.5rem; }
.auth-back-link {
  position: fixed;
  top: 1.4rem;
  left: 1.6rem;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--biocard);
  padding: 0.58rem 1rem;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(55, 20, 23, 0.08);
}
.auth-card {
  width: min(460px, 100%);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 2rem;
  display: grid;
  gap: 1rem;
}
.auth-card img { width: 58px; }
.auth-card h1 { margin: 0; color: var(--biocard); }
.auth-card label { display: grid; gap: 0.4rem; color: var(--muted); }
.auth-card input { border: 1px solid var(--line); border-radius: 12px; padding: 0.8rem; }
.field-label {
  display: inline-flex;
  align-items: baseline;
  gap: 0.2rem;
}
.required-star { color: #b4232a; font-weight: 800; }