.promo-code-card {
  position: relative;
  display: grid;
  min-height: 128px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 12px 16px;
  margin-top: 12px;
  padding: 16px 18px;
  border: 1px solid oklch(0.7 0.12 82 / 0.42);
  border-radius: 14px;
  background: linear-gradient(118deg, oklch(0.38 0.075 82 / 0.2), transparent 46%), oklch(0.135 0.024 var(--brand-hue) / 0.9);
  box-shadow: inset 0 0 38px oklch(0.7 0.1 82 / 0.05), 0 20px 44px oklch(0.025 0.012 70 / 0.48);
}
.promo-code-card__copy { display: flex; min-width: 0; align-items: center; justify-content: center; }
.promo-code-card__status { margin: 0; white-space: nowrap; }
.promo-code-card__form {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(0, 1fr) 44px;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid oklch(0.62 0.08 82 / 0.5);
  border-radius: 10px;
  background: oklch(0.085 0.011 72 / 0.95);
  box-shadow: inset 0 1px 6px oklch(0 0 0 / 0.24);
}
.promo-code-card__form:focus-within { outline: 2px solid var(--color-primary-strong); outline-offset: 2px; }
.promo-code-card__form input {
  width: 100%;
  min-width: 0;
  min-height: 46px;
  padding: 0 11px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--color-fg);
  font: 600 13px var(--font-body);
}
.promo-code-card__form input::placeholder { color: var(--color-muted); font-weight: 500; }
.promo-code-card__submit {
  display: grid;
  width: 44px;
  min-height: 46px;
  place-items: center;
  margin: 0;
  padding: 0;
  border: 0;
  border-left: 1px solid oklch(0.85 0.09 82 / 0.22);
  border-radius: 0;
  background: linear-gradient(135deg, oklch(0.81 0.11 82), oklch(0.64 0.11 74));
  color: oklch(0.14 0.022 72);
  cursor: pointer;
  transition: filter 180ms ease;
}
.promo-code-card__submit svg { display: block; }
.promo-code-card__submit:hover:not(:disabled) { filter: brightness(1.13); }
.promo-code-card__submit:disabled { opacity: 0.58; cursor: not-allowed; }
.promo-code-card__submit:focus-visible { outline: 2px solid var(--color-fg); outline-offset: -3px; }
.promo-code-card__message { grid-column: 1 / -1; margin: 0; color: var(--color-fg); font-size: 12px; line-height: 1.4; }
.promo-code-card__message:empty { display: none; }
@media (prefers-reduced-motion: reduce) {
  .promo-code-card__submit { transition: none; }
}