.auth-steps {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
}

.auth-steps__dot {
  flex: 1;
  height: 4px;
  border-radius: 999px;
  background: var(--signup-border);
  transition: background 0.25s ease;
}

.auth-steps__dot.is-active,
.auth-steps__dot.is-done {
  background: var(--color-text);
}

.auth-panel {
  display: none;
}

.auth-panel.is-active {
  display: block;
}

.auth-panel__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-panel__hint {
  font-size: 0.875rem;
  color: var(--signup-muted);
  margin-bottom: 20px;
  line-height: 1.5;
}

.auth-panel__email {
  font-weight: 600;
  color: var(--color-text);
}

.auth-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.auth-field {
  margin-bottom: 16px;
}

.auth-field label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--signup-muted);
  margin-bottom: 6px;
}

.auth-field input {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font);
  font-size: 1rem;
  border: 1px solid var(--signup-border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  outline: none;
}

.auth-field input:focus {
  border-color: var(--color-text);
  box-shadow: 0 0 0 3px rgba(15, 15, 15, 0.06);
}

.auth-otp-input {
  letter-spacing: 0.35em;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
}

.auth-alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  margin-bottom: 16px;
  display: none;
}

.auth-alert.is-visible {
  display: block;
}

.auth-alert--error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.auth-alert--success {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.auth-alert--info {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.auth-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  padding: 0;
  border: none;
  background: none;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--signup-muted);
  cursor: pointer;
}

.auth-back:hover {
  color: var(--color-text);
}

.auth-resend {
  margin-top: 16px;
  font-size: 0.875rem;
  color: var(--signup-muted);
  text-align: center;
}

.auth-resend button {
  border: none;
  background: none;
  color: var(--signup-link);
  font-weight: 500;
  cursor: pointer;
  text-decoration: underline;
}

.signup-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (max-width: 480px) {
  .auth-row {
    grid-template-columns: 1fr;
  }
}