.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
  background:
    radial-gradient(circle at 18% 12%, rgba(197, 160, 89, 0.18), transparent 42%),
    radial-gradient(circle at 80% 88%, rgba(0, 33, 71, 0.16), transparent 40%),
    var(--paper-white);
}

.auth-card {
  width: 100%;
  max-width: 460px;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  padding: 28px;
}

.auth-brand {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.6rem;
  color: var(--royal-blue);
  letter-spacing: 0.4px;
}

.auth-subtitle {
  color: var(--text-grey);
  margin-top: 6px;
  font-size: 0.92rem;
}

.auth-tabs {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.auth-tab {
  border: 1px solid var(--border-light);
  border-radius: 10px;
  background: #fff;
  color: var(--royal-blue);
  font-weight: 600;
  padding: 10px 12px;
  cursor: pointer;
}

.auth-tab.active {
  background: var(--royal-blue);
  border-color: var(--royal-blue);
  color: #fff;
}

.auth-form {
  margin-top: 18px;
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  color: var(--text-grey);
  font-size: 0.82rem;
  font-weight: 600;
}

.field input {
  width: 100%;
  border: 1px solid #d8d8d8;
  border-radius: 10px;
  padding: 11px 12px;
  outline: none;
}

.field input:focus {
  border-color: var(--gold-accent);
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.2);
}

.auth-submit {
  margin-top: 8px;
  border: none;
  border-radius: 10px;
  padding: 12px;
  background: var(--gold-accent);
  color: var(--royal-blue);
  font-weight: 700;
  cursor: pointer;
}

.auth-submit:hover {
  filter: brightness(1.04);
}

.auth-note {
  margin-top: 14px;
  color: var(--text-grey);
  font-size: 0.82rem;
  line-height: 1.5;
}