/* Component: Button */

.c-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs, 0.5rem);
  padding: var(--spacing-sm, 0.75rem) var(--spacing-base, 1rem);
  font-size: var(--font-size-sm, 0.875rem);
  font-weight: var(--font-weight-semibold, 600);
  border: 1px solid transparent;
  border-radius: var(--radius-base, 0.5rem);
  cursor: pointer;
  transition: all var(--duration-fast, 100ms) var(--ease-out, cubic-bezier(0, 0, 0.2, 1));
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
  background-color: transparent;
}

.c-button:focus {
  outline: 3px solid var(--color-primary-500, #0073aa);
  outline-offset: 2px;
}

.c-button:disabled,
.c-button[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary variant */
.c-button--primary {
  background-color: var(--color-brand-action, #c9a85e);
  color: var(--color-text-primary, #1a1a1a);
  border-color: var(--color-brand-action, #c9a85e);
}

.c-button--primary:hover:not(:disabled) {
  background-color: var(--color-brand-action-dark, #b89847);
  border-color: var(--color-brand-action-dark, #b89847);
  color: var(--color-text-primary, #1a1a1a);
  box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
}

.c-button--primary:focus-visible:not(:disabled) {
  background-color: var(--color-brand-action-dark, #b89847);
  border-color: var(--color-brand-action-dark, #b89847);
  outline: 2px solid var(--color-brand-action-dark, #b89847);
  outline-offset: 2px;
}

.c-button--primary:active:not(:disabled) {
  background-color: var(--color-brand-action-dark, #b89847);
  border-color: var(--color-brand-action-dark, #b89847);
}

/* Secondary variant */
.c-button--secondary {
  background-color: transparent;
  color: var(--color-text-primary, #1a1a1a);
  border-color: var(--color-text-primary, #1a1a1a);
}

.c-button--secondary:hover:not(:disabled) {
  background-color: var(--color-brand-dark, #16283a);
  border-color: var(--color-brand-dark, #16283a);
  color: white;
  box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
}

.c-button--secondary:focus-visible:not(:disabled) {
  background-color: var(--color-brand-dark, #16283a);
  border-color: var(--color-brand-dark, #16283a);
  color: white;
  outline: 2px solid var(--color-brand-dark, #16283a);
  outline-offset: 2px;
}

.c-button--secondary:active:not(:disabled) {
  background-color: var(--color-brand-dark, #16283a);
  border-color: var(--color-brand-dark, #16283a);
  color: white;
}

/* Tertiary variant */
.c-button--tertiary {
  background-color: transparent;
  color: var(--color-primary-500, #0073aa);
  border-color: var(--color-border-medium, #d0d0d0);
}

.c-button--tertiary:hover:not(:disabled) {
  background-color: var(--color-primary-50, #f0f7ff);
}

.c-button--tertiary:active:not(:disabled) {
  background-color: var(--color-primary-100, #e0f0ff);
}

/* Sizing */
.c-button--sm {
  padding: var(--spacing-xs, 0.5rem) var(--spacing-sm, 0.75rem);
  font-size: var(--font-size-xs, 0.75rem);
}

.c-button--lg {
  padding: var(--spacing-base, 1rem) var(--spacing-md, 1.5rem);
  font-size: var(--font-size-base, 1rem);
}

/* Icon */
.c-button__icon {
  width: 1em;
  height: 1em;
  display: inline-block;
  flex-shrink: 0;
}

/* Loading spinner */
.c-button__spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: c-button-spin var(--duration-base, 200ms) linear infinite;
}

@keyframes c-button-spin {
  to {
    transform: rotate(360deg);
  }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .c-button {
    transition-duration: 0.01ms !important;
  }

  .c-button__spinner {
    animation-duration: 0.01ms !important;
  }
}