/* Button Component - ajaRed Design System */

/* Base Button Styles */
.ajr-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-primary);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.ajr-button:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.ajr-button:active {
  transform: translateY(1px);
}

/* Sizes */
.ajr-button--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  min-height: 32px;
}

.ajr-button--md {
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  min-height: 40px;
}

.ajr-button--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-md);
  min-height: 48px;
}

/* Primary Variant */
.ajr-button--primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.ajr-button--primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
}

.ajr-button--primary:active:not(:disabled) {
  background-color: var(--color-primary-darker);
}

/* Secondary Variant */
.ajr-button--secondary {
  background-color: var(--color-accent-terracotta-default);
  color: var(--color-text-inverse);
}

.ajr-button--secondary:hover:not(:disabled) {
  background-color: var(--color-accent-terracotta-dark);
}

.ajr-button--secondary:active:not(:disabled) {
  background-color: var(--color-accent-terracotta-dark);
  filter: brightness(0.9);
}

/* Tertiary Variant (Outlined) */
.ajr-button--tertiary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.ajr-button--tertiary:hover:not(:disabled) {
  background-color: var(--color-primary-lightest);
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
}

.ajr-button--tertiary:active:not(:disabled) {
  background-color: var(--color-primary-lighter);
}

/* Ghost Variant (Text only) */
.ajr-button--ghost {
  background-color: transparent;
  color: var(--color-primary);
}

.ajr-button--ghost:hover:not(:disabled) {
  background-color: var(--color-primary-lightest);
  color: var(--color-primary-dark);
}

.ajr-button--ghost:active:not(:disabled) {
  background-color: var(--color-primary-lighter);
}

/* Danger Variant */
.ajr-button--danger {
  background-color: var(--color-semantic-error-default);
  color: var(--color-text-inverse);
}

.ajr-button--danger:hover:not(:disabled) {
  background-color: var(--color-semantic-error-default);
  filter: brightness(0.9);
}

.ajr-button--danger:active:not(:disabled) {
  filter: brightness(0.8);
}

/* Success Variant */
.ajr-button--success {
  background-color: var(--color-semantic-success-default);
  color: var(--color-text-inverse);
}

.ajr-button--success:hover:not(:disabled) {
  background-color: var(--color-semantic-success-default);
  filter: brightness(0.9);
}

.ajr-button--success:active:not(:disabled) {
  filter: brightness(0.8);
}

/* Disabled State */
.ajr-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Loading State */
.ajr-button--loading {
  color: transparent;
  pointer-events: none;
  position: relative;
}

.ajr-button--loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-top-color: transparent;
  animation: ajr-button-spin 0.6s linear infinite;
}

.ajr-button--primary.ajr-button--loading::after,
.ajr-button--secondary.ajr-button--loading::after,
.ajr-button--danger.ajr-button--loading::after,
.ajr-button--success.ajr-button--loading::after {
  border-color: var(--color-text-inverse);
  border-top-color: transparent;
}

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

/* Full Width */
.ajr-button--full {
  width: 100%;
}

/* Icon Only Button */
.ajr-button--icon {
  padding: var(--space-2);
  min-width: 40px;
}

.ajr-button--icon.ajr-button--sm {
  padding: var(--space-1);
  min-width: 32px;
  min-height: 32px;
}

.ajr-button--icon.ajr-button--lg {
  padding: var(--space-3);
  min-width: 48px;
  min-height: 48px;
}

/* Button Group */
.ajr-button-group {
  display: inline-flex;
  gap: var(--space-2);
}

.ajr-button-group--attached {
  gap: 0;
}

.ajr-button-group--attached .ajr-button {
  border-radius: 0;
}

.ajr-button-group--attached .ajr-button:first-child {
  border-top-left-radius: var(--radius-md);
  border-bottom-left-radius: var(--radius-md);
}

.ajr-button-group--attached .ajr-button:last-child {
  border-top-right-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
}

.ajr-button-group--attached .ajr-button:not(:last-child) {
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

/* Rounded Variant */
.ajr-button--rounded {
  border-radius: var(--radius-full);
}