.account-signup { color: var(--color-text); }
.account-signup__form {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}
.account-signup__form h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.account-signup__form label { display: block; margin-block: var(--space-4) var(--space-2); color: var(--color-text); }
.account-signup__form input {
  width: 100%; min-width: 0; min-height: 2.75rem;
  padding: var(--space-3); border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-sm); font: inherit; line-height: 1.4;
  background: var(--color-background); color: var(--color-text);
}
.account-signup__address { display: flex; align-items: stretch; min-width: 0; }
.account-signup__address input { flex: 1; width: 0; border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.account-signup__suffix {
  display: flex; align-items: center; padding-inline: var(--space-3);
  border: var(--border-width) solid var(--color-border); border-left: 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-muted); font-size: .9rem; white-space: nowrap;
}
.account-signup__form .account-signup__hint { margin-block: var(--space-2) var(--space-3); font-size: .8rem; line-height: 1.5; }
.account-signup__availability { min-height: 3em; margin: 0; font-size: .85rem; line-height: 1.5; }
.account-signup__availability[data-state="available"] { color: var(--color-accent); }
.account-signup__availability[data-state="available"]::before { content: "✓ "; }
.account-signup__availability[data-state="unavailable"]::before { content: "× "; }
.account-signup__button {
  display: flex; align-items: center; justify-content: center; gap: var(--space-3);
  width: 100%; min-height: 2.9rem; margin-block-start: var(--space-5);
  padding: var(--space-3) var(--space-4); border: var(--border-width) solid transparent;
  border-radius: var(--radius-md); background: var(--color-accent); color: var(--color-on-accent);
  font: 650 1rem/1.4 var(--font-body); cursor: pointer;
  transition: background-color 160ms ease;
}
.account-signup__button:hover:not(:disabled) { background: var(--color-accent-strong); }
.account-signup__button:disabled { opacity: .55; cursor: not-allowed; }
.account-signup__retry { padding: var(--space-2) 0; border: 0; background: transparent; color: var(--color-accent); font: inherit; text-decoration: underline; cursor: pointer; }
.account-signup__retry:disabled { opacity: .55; cursor: not-allowed; }
.account-signup__status { margin-block: var(--space-4) 0; font-size: .9rem; }
.account-signup--progress {
  padding: var(--space-5); border: var(--border-width) solid var(--color-border);
  border-inline-start: .25rem solid var(--color-accent); border-radius: var(--radius-md);
  background: var(--color-surface);
}
.account-signup--progress .account-signup__status { margin: 0; font-size: 1rem; }
@media (max-width: 28rem) {
  .account-signup__suffix { padding-inline: var(--space-2); font-size: .8rem; }
  .account-signup__form { padding: var(--space-4); }
}
@media (prefers-reduced-motion: reduce) {
  .account-signup__button { transition: none; }
}