/* ============================================================================
   Fijara Platform - Buttons
   ============================================================================
   Unified button styles for the entire platform.
   All buttons use CSS variables for consistent theming.
   ============================================================================ */

/* ============================================================================
   BASE BUTTON
   ============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(67, 121, 255, 0.3);
}

.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  pointer-events: none;
  cursor: not-allowed;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

/* ============================================================================
   BUTTON VARIANTS
   ============================================================================ */

/* Primary Button */
.btn-primary {
  color: var(--color-white);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn-primary:focus-visible {
  box-shadow: 0 0 0 3px rgba(67, 121, 255, 0.4);
}

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

/* Secondary Button */
.btn-secondary {
  color: var(--text-primary);
  background-color: var(--bg-surface-secondary);
  border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-surface-tertiary);
  border-color: var(--border-color-dark);
}

.btn-secondary:focus-visible {
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

/* Outline Primary */
.btn-outline-primary {
  color: var(--color-primary);
  background-color: transparent;
  border-color: var(--color-primary);
}

.btn-outline-primary:hover:not(:disabled) {
  color: var(--color-white);
  background-color: var(--color-primary);
}

/* Outline Secondary */
.btn-outline-secondary {
  color: var(--text-secondary);
  background-color: transparent;
  border-color: var(--border-color);
}

.btn-outline-secondary:hover:not(:disabled) {
  color: var(--text-primary);
  background-color: var(--bg-surface-secondary);
  border-color: var(--border-color-dark);
}

/* Ghost Button */
.btn-ghost {
  color: var(--text-secondary);
  background-color: transparent;
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  color: var(--text-primary);
  background-color: var(--bg-hover);
}

/* Success Button */
.btn-success {
  color: var(--color-white);
  background-color: var(--color-success);
  border-color: var(--color-success);
}

.btn-success:hover:not(:disabled) {
  background-color: var(--color-success-dark);
  border-color: var(--color-success-dark);
}

.btn-success:focus-visible {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.4);
}

/* Warning Button */
.btn-warning {
  color: var(--color-white);
  background-color: var(--color-warning);
  border-color: var(--color-warning);
}

.btn-warning:hover:not(:disabled) {
  background-color: var(--color-warning-dark);
  border-color: var(--color-warning-dark);
}

.btn-warning:hover:not(:disabled) {
  color: var(--color-white) !important;
}

.btn-warning:focus-visible {
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.4);
}

/* Danger/Error Button */
.btn-danger,
.btn-error {
  color: var(--color-white);
  background-color: var(--color-error);
  border-color: var(--color-error);
}

.btn-danger:hover:not(:disabled),
.btn-error:hover:not(:disabled) {
  background-color: var(--color-error-dark);
  border-color: var(--color-error-dark);
}

.btn-danger:focus-visible,
.btn-error:focus-visible {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.4);
}

/* Info Button */
.btn-info {
  color: var(--color-white);
  background-color: var(--color-info);
  border-color: var(--color-info);
}

.btn-info:hover:not(:disabled) {
  background-color: var(--color-info-dark);
  border-color: var(--color-info-dark);
}

.btn-info:focus-visible {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.4);
}

/* Link Button */
.btn-link {
  color: var(--text-link);
  background-color: transparent;
  border-color: transparent;
  text-decoration: none;
}

.btn-link:hover:not(:disabled) {
  color: var(--text-link-hover);
  text-decoration: underline;
}

/* ============================================================================
   BUTTON SIZES
   ============================================================================ */

.btn-xs {
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
}

.btn-lg {
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  border-radius: var(--radius-xl);
}

.btn-xl {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-xl);
}

/* ============================================================================
   BUTTON SHAPES
   ============================================================================ */

.btn-square {
  padding: var(--spacing-2);
  aspect-ratio: 1;
}

.btn-square.btn-xs {
  padding: var(--spacing-1);
}
.btn-square.btn-sm {
  padding: 6px;
}
.btn-square.btn-lg {
  padding: var(--spacing-3);
}
.btn-square.btn-xl {
  padding: var(--spacing-4);
}

.btn-rounded {
  border-radius: var(--radius-full);
}

.btn-pill {
  border-radius: var(--radius-full);
  padding-left: var(--spacing-5);
  padding-right: var(--spacing-5);
}

/* ============================================================================
   BUTTON WIDTH
   ============================================================================ */

.btn-block {
  display: flex;
  width: 100%;
}

.btn-auto {
  width: auto;
}

/* ============================================================================
   BUTTON WITH ICON
   ============================================================================ */

.btn-icon {
  padding: var(--spacing-2);
}

.btn-icon.btn-xs {
  padding: var(--spacing-1);
}
.btn-icon.btn-sm {
  padding: 6px;
}
.btn-icon.btn-lg {
  padding: var(--spacing-3);
}
.btn-icon.btn-xl {
  padding: var(--spacing-4);
}

/* Icon sizing inside buttons */
.btn i,
.btn svg,
.btn .icon {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}

.btn-lg i,
.btn-lg svg,
.btn-lg .icon {
  width: 1.25em;
  height: 1.25em;
}

.btn-xl i,
.btn-xl svg,
.btn-xl .icon {
  width: 1.5em;
  height: 1.5em;
}

/* Icon only button */
.btn-icon-only {
  padding: var(--spacing-2);
  width: 40px;
  height: 40px;
}

.btn-icon-only.btn-xs {
  width: 28px;
  height: 28px;
  padding: var(--spacing-1);
}

.btn-icon-only.btn-sm {
  width: 32px;
  height: 32px;
  padding: 6px;
}

.btn-icon-only.btn-lg {
  width: 48px;
  height: 48px;
  padding: var(--spacing-3);
}

.btn-icon-only.btn-xl {
  width: 56px;
  height: 56px;
  padding: var(--spacing-4);
}

/* ============================================================================
   BUTTON LOADING STATE
   ============================================================================ */

.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: "";
  position: absolute;
  width: 1em;
  height: 1em;
  top: 50%;
  left: 50%;
  margin-left: -0.5em;
  margin-top: -0.5em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: btn-spinner 0.6s linear infinite;
}

.btn-primary.btn-loading::after,
.btn-success.btn-loading::after,
.btn-warning.btn-loading::after,
.btn-danger.btn-loading::after,
.btn-info.btn-loading::after {
  border-color: rgba(255, 255, 255, 0.3);
  border-right-color: transparent;
  border-top-color: var(--color-white);
}

@keyframes btn-spinner {
  to {
    transform: rotate(360deg);
  }
}

/* ============================================================================
   BUTTON GROUP
   ============================================================================ */

.btn-group {
  display: inline-flex;
  vertical-align: middle;
}

.btn-group > .btn {
  position: relative;
  flex: 1 1 auto;
  border-radius: 0;
}

.btn-group > .btn:first-child {
  border-top-left-radius: var(--radius-lg);
  border-bottom-left-radius: var(--radius-lg);
}

.btn-group > .btn:last-child {
  border-top-right-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

.btn-group > .btn:not(:first-child) {
  margin-left: -1px;
}

.btn-group > .btn:hover,
.btn-group > .btn:focus,
.btn-group > .btn:active {
  z-index: 1;
}

/* Vertical button group */
.btn-group-vertical {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.btn-group-vertical > .btn {
  width: 100%;
  border-radius: 0;
}

.btn-group-vertical > .btn:first-child {
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.btn-group-vertical > .btn:last-child {
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

.btn-group-vertical > .btn:not(:first-child) {
  margin-top: -1px;
}

/* ============================================================================
   SPECIAL BUTTON STYLES
   ============================================================================ */

/* Gradient button */
.btn-gradient {
  color: var(--color-white);
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-dark) 100%
  );
  border: none;
  box-shadow: var(--shadow-primary);
}

.btn-gradient:hover:not(:disabled) {
  background: linear-gradient(
    135deg,
    var(--color-primary-light) 0%,
    var(--color-primary) 100%
  );
  box-shadow: 0 6px 20px rgba(67, 121, 255, 0.4);
  transform: translateY(-1px);
}

.btn-gradient:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}

/* Soft/Light button variants */
.btn-soft-primary {
  color: var(--color-primary);
  background-color: rgba(67, 121, 255, 0.1);
  border-color: transparent;
}

.btn-soft-primary:hover:not(:disabled) {
  background-color: rgba(67, 121, 255, 0.2);
}

.btn-soft-success {
  color: var(--color-success);
  background-color: var(--color-success-bg);
  border-color: transparent;
}

.btn-soft-success:hover:not(:disabled) {
  background-color: rgba(16, 185, 129, 0.2);
}

.btn-soft-warning {
  color: var(--color-warning-dark);
  background-color: var(--color-warning-bg);
  border-color: transparent;
}

.btn-soft-warning:hover:not(:disabled) {
  background-color: rgba(245, 158, 11, 0.2);
}

.btn-soft-danger {
  color: var(--color-error);
  background-color: var(--color-error-bg);
  border-color: transparent;
}

.btn-soft-danger:hover:not(:disabled) {
  background-color: rgba(239, 68, 68, 0.2);
}

.btn-soft-info {
  color: var(--color-info);
  background-color: var(--color-info-bg);
  border-color: transparent;
}

.btn-soft-info:hover:not(:disabled) {
  background-color: rgba(59, 130, 246, 0.2);
}

/* ============================================================================
   DARK THEME ADJUSTMENTS
   ============================================================================ */

.theme-dark .btn-secondary {
  background-color: var(--bg-surface-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.theme-dark .btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-surface-tertiary);
}

.theme-dark .btn-ghost:hover:not(:disabled) {
  background-color: var(--bg-hover);
}

.theme-dark .btn-gradient {
  box-shadow: 0 4px 14px rgba(67, 121, 255, 0.25);
}

/* ============================================================================
   CLOSE BUTTON
   ============================================================================ */

.btn-close {
  box-sizing: content-box;
  width: 1em;
  height: 1em;
  padding: var(--spacing-2);
  color: var(--text-secondary);
  background: transparent
    url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236B7280'%3e%3cpath d='M.293.293a1 1 0 0 1 1.414 0L8 6.586 14.293.293a1 1 0 1 1 1.414 1.414L9.414 8l6.293 6.293a1 1 0 0 1-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 0 1-1.414-1.414L6.586 8 .293 1.707a1 1 0 0 1 0-1.414z'/%3e%3c/svg%3e")
    center/1em auto no-repeat;
  border: 0;
  border-radius: var(--radius-md);
  opacity: 0.5;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.btn-close:hover {
  opacity: 1;
}

.btn-close:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(67, 121, 255, 0.3);
  opacity: 1;
}

.btn-close:disabled {
  pointer-events: none;
  opacity: 0.25;
}

/* White close button for dark backgrounds */
.btn-close-white {
  filter: invert(1) grayscale(100%) brightness(200%);
}