/**
 * Salt Design System - Icons Component
 *
 * Icon sizing, colors, and icon button styles
 * Based on Figma Design System specifications
 * https://www.figma.com/design/CqdoCVx42XayJMKQ1mMGgr/Salt-Design-System?node-id=1305-3364
 */

/* ============================================
   Icon Sizes
   ============================================ */

/* Base icon class */
.icon {
  display: inline-block;
  vertical-align: middle;
  line-height: 1;
  flex-shrink: 0;
}

/* Icon sizes based on Figma specs */
.icon-xs,
.icon-10 {
  width: 10px;
  height: 10px;
  font-size: 10px;
}

.icon-sm,
.icon-12 {
  width: 12px;
  height: 12px;
  font-size: 12px;
}

.icon-md,
.icon-16 {
  width: 16px;
  height: 16px;
  font-size: 16px;
}

.icon-lg,
.icon-20 {
  width: 20px;
  height: 20px;
  font-size: 20px;
}

.icon-xl,
.icon-24 {
  width: 24px;
  height: 24px;
  font-size: 24px;
}

/* ============================================
   Icon Colors
   ============================================ */

.icon-base {
  color: var(--color-text-base);
}

.icon-muted {
  color: var(--color-text-muted);
}

.icon-subtle {
  color: var(--color-text-subtle);
}

.icon-disabled {
  color: var(--color-text-disabled);
}

.icon-primary {
  color: var(--color-primary);
}

.icon-secondary {
  color: var(--color-text-muted);
}

.icon-success {
  color: var(--color-success);
}

.icon-error {
  color: var(--color-error);
}

.icon-warning {
  color: var(--color-warning);
}

.icon-info {
  color: var(--color-info);
}

.icon-invert {
  color: var(--color-text-base);
}

[data-theme="dark"] .icon-invert {
  color: var(--color-bg-surface);
}

/* ============================================
   Icon Button (Standalone clickable icons)
   ============================================ */

.btn-icon-only {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 6px;
  flex-shrink: 0;
}

/* Icon button sizes */
.btn-icon-only.btn-xl {
  width: 56px;
  height: 56px;
  padding: 0;
}

.btn-icon-only.btn-lg {
  width: 48px;
  height: 48px;
  padding: 0;
}

.btn-icon-only.btn-md {
  width: 40px;
  height: 40px;
  padding: 0;
}

.btn-icon-only.btn-sm {
  width: 32px;
  height: 32px;
  padding: 0;
}

.btn-icon-only.btn-xs {
  width: 24px;
  height: 24px;
  padding: 0;
}

/* Icon button variants */

/* Ghost icon button (transparent background) */
.btn-icon-only.btn-ghost-primary,
.btn-icon-only.btn-ghost-secondary {
  background: transparent;
  color: var(--color-text-base);
}

.btn-icon-only.btn-ghost-primary:hover,
.btn-icon-only.btn-ghost-secondary:hover {
  background: var(--color-bg-surface-subtle);
  color: var(--color-text-base);
}

.btn-icon-only.btn-ghost-primary:active,
.btn-icon-only.btn-ghost-secondary:active,
.btn-icon-only.btn-ghost-primary.active,
.btn-icon-only.btn-ghost-secondary.active {
  background: var(--color-bg-surface-muted);
  color: var(--color-primary);
}

/* Filled icon button */
.btn-icon-only.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-icon-only.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-icon-only.btn-primary:active,
.btn-icon-only.btn-primary.active {
  background: var(--color-primary-active);
}

/* Icon button with subtle background */
.btn-icon-only.btn-soft-primary {
  background: var(--color-purple-signal-3);
  color: var(--color-primary);
}

.btn-icon-only.btn-soft-primary:hover {
  background: var(--color-purple-signal-4);
}

.btn-icon-only.btn-soft-primary:active,
.btn-icon-only.btn-soft-primary.active {
  background: var(--color-purple-signal-5);
}

/* Disabled state */
.btn-icon-only:disabled,
.btn-icon-only.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================
   Icon positioning in buttons
   ============================================ */

/* Icons inside regular buttons */
.btn .icon,
.btn i,
.btn svg {
  vertical-align: middle;
  display: inline-block;
  line-height: 1;
}

/* Icon spacing in buttons */
.btn .icon + span,
.btn i + span,
.btn svg + span {
  margin-left: 0.5rem;
}

.btn span + .icon,
.btn span + i,
.btn span + svg {
  margin-left: 0.5rem;
}

/* Adjust icon size in buttons based on button size */
.btn-xl .icon,
.btn-xl i:not(.fas):not(.far):not(.fab) {
  font-size: 24px;
  width: 24px;
  height: 24px;
}

.btn-lg .icon,
.btn-lg i:not(.fas):not(.far):not(.fab) {
  font-size: 20px;
  width: 20px;
  height: 20px;
}

.btn-md .icon,
.btn i:not(.fas):not(.far):not(.fab) {
  font-size: 16px;
  width: 16px;
  height: 16px;
}

.btn-sm .icon,
.btn-sm i:not(.fas):not(.far):not(.fab) {
  font-size: 16px;
  width: 16px;
  height: 16px;
}

.btn-xs .icon,
.btn-xs i:not(.fas):not(.far):not(.fab) {
  font-size: 12px;
  width: 12px;
  height: 12px;
}

/* ============================================
   Font Awesome Icon Sizing
   ============================================ */

/* Ensure Font Awesome icons use proper sizing */
.fas,
.far,
.fab,
.fa {
  line-height: inherit;
  vertical-align: middle;
}

/* Font Awesome size variants */
.fa-xs {
  font-size: 10px;
}

.fa-sm {
  font-size: 12px;
}

.fa-md,
.fa-1x {
  font-size: 16px;
}

.fa-lg {
  font-size: 20px;
}

.fa-xl,
.fa-2x {
  font-size: 24px;
}

/* ============================================
   Icon States
   ============================================ */

/* Interactive icons (clickable) */
.icon-interactive {
  cursor: pointer;
  transition: color 0.2s ease, transform 0.2s ease;
}

.icon-interactive:hover {
  color: var(--color-primary);
}

.icon-interactive:active {
  transform: scale(0.95);
}

/* Loading/spinning icon */
.icon-spin,
.fa-spin {
  animation: icon-spin 1s linear infinite;
}

@keyframes icon-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Pulse animation */
.icon-pulse,
.fa-pulse {
  animation: icon-pulse 2s ease-in-out infinite;
}

@keyframes icon-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ============================================
   Icon in Input Fields
   ============================================ */

.input-icon {
  position: relative;
}

.input-icon .icon,
.input-icon i {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--color-text-muted);
}

.input-icon-left .icon,
.input-icon-left i {
  left: 0.875rem;
}

.input-icon-left .form-control {
  padding-left: 2.5rem;
}

.input-icon-right .icon,
.input-icon-right i {
  right: 0.875rem;
}

.input-icon-right .form-control {
  padding-right: 2.5rem;
}

/* ============================================
   Icon Badges (with notification dots)
   ============================================ */

.icon-badge {
  position: relative;
  display: inline-block;
}

.icon-badge::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 8px;
  height: 8px;
  background: var(--color-error);
  border: 2px solid var(--color-bg-surface);
  border-radius: 50%;
}

.icon-badge-sm::after {
  width: 6px;
  height: 6px;
}

.icon-badge-lg::after {
  width: 10px;
  height: 10px;
}

/* Badge with count */
.icon-badge-count {
  position: relative;
  display: inline-block;
}

.icon-badge-count::after {
  content: attr(data-count);
  position: absolute;
  top: -4px;
  right: -8px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--color-error);
  color: white;
  border-radius: 9px;
  font-size: 10px;
  font-weight: 600;
  line-height: 18px;
  text-align: center;
  border: 2px solid var(--color-bg-surface);
}

/* ============================================
   Icon Lists
   ============================================ */

.icon-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.icon-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.icon-list-item .icon,
.icon-list-item i {
  margin-top: 0.125rem;
  flex-shrink: 0;
}

/* ============================================
   Icon Buttons in Nav/Toolbar
   ============================================ */

.nav .btn-icon-only,
.toolbar .btn-icon-only {
  color: var(--color-text-muted);
}

.nav .btn-icon-only:hover,
.toolbar .btn-icon-only:hover {
  color: var(--color-text-base);
  background: var(--color-bg-surface-subtle);
}

.nav .btn-icon-only.active,
.toolbar .btn-icon-only.active {
  color: var(--color-primary);
  background: var(--color-purple-signal-3);
}

/* ============================================
   Accessibility
   ============================================ */

/* Screen reader only text for icon-only buttons */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible for keyboard navigation */
.btn-icon-only:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .icon,
  .btn-icon-only {
    outline: 1px solid currentColor;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .icon-spin,
  .icon-pulse,
  .icon-interactive {
    animation: none;
    transition: none;
  }
}

/* ============================================
   Dark Mode Adjustments
   ============================================ */

[data-theme="dark"] .icon-badge::after,
[data-theme="dark"] .icon-badge-count::after {
  border-color: var(--color-bg-surface);
}

[data-theme="dark"] .btn-icon-only.btn-ghost-primary:hover,
[data-theme="dark"] .btn-icon-only.btn-ghost-secondary:hover {
  background: var(--color-bg-surface-subtle);
}