/* Minimal shared primitives for upcoming marketing, auth, and app surfaces. */
.ui-button {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  justify-content: center;
  gap: var(--kvd-space-2);
  padding: 0 var(--kvd-space-4);
  border: 1px solid transparent;
  border-radius: var(--kvd-radius-md);
  font-weight: var(--kvd-font-weight-medium);
  line-height: 1;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.ui-button--primary {
  background: var(--kvd-color-action-primary);
  color: var(--kvd-color-action-primary-contrast);
}

.ui-button--primary:hover {
  background: var(--kvd-color-action-primary-hover);
}

.ui-button--primary:active {
  background: var(--kvd-color-action-primary-active);
}

.ui-button--secondary {
  border-color: var(--kvd-color-border-default);
  background: var(--kvd-color-bg-surface);
  color: var(--kvd-color-text-primary);
}

.ui-button--secondary:hover {
  border-color: var(--kvd-color-border-strong);
  background: var(--kvd-color-bg-subtle);
}

.ui-button:disabled,
.ui-button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
}

.ui-submit-control--busy {
  cursor: progress;
  opacity: 0.72;
  pointer-events: none;
}

button.ui-submit-control--busy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--kvd-space-2);
}

button.ui-submit-control--busy::before {
  width: 0.875rem;
  height: 0.875rem;
  flex: 0 0 auto;
  border: 2px solid currentColor;
  border-inline-end-color: transparent;
  border-radius: 50%;
  content: "";
  animation: ui-submit-spinner 700ms linear infinite;
}

@keyframes ui-submit-spinner {
  to {
    transform: rotate(1turn);
  }
}

@media (prefers-reduced-motion: reduce) {
  button.ui-submit-control--busy::before {
    animation: none;
  }
}

.ui-input {
  display: block;
  width: 100%;
  min-height: 2.5rem;
  padding: 0 var(--kvd-space-3);
  border: 1px solid var(--kvd-color-border-default);
  border-radius: var(--kvd-radius-md);
  background: var(--kvd-color-bg-surface);
  color: var(--kvd-color-text-primary);
}

.ui-input::placeholder {
  color: var(--kvd-color-text-muted);
  opacity: 1;
}

.ui-input:focus {
  border-color: var(--kvd-color-focus);
}

.ui-card {
  border: 1px solid var(--kvd-color-border-default);
  border-radius: var(--kvd-radius-lg);
  background: var(--kvd-color-bg-surface);
  box-shadow: var(--kvd-shadow-sm);
}

.ui-container {
  width: min(calc(100% - (var(--kvd-space-4) * 2)), 72rem);
  margin-inline: auto;
}

@media (min-width: 48rem) {
  .ui-container {
    width: min(calc(100% - (var(--kvd-space-8) * 2)), 72rem);
  }
}