/**
 * Funky.CommandPalette Styles
 * 
 * Spotlight-style command palette with theme support.
 * Uses --pro-* CSS custom properties for theming.
 * 
 * @version 1.0.0
 */

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */

:root {
  /* Layout */
  --palette-width: 600px;
  --palette-max-height: 400px;
  --palette-border-radius: var(--pro-radius-lg, 12px);
  
  /* Search input */
  --palette-input-height: 56px;
  --palette-input-font-size: var(--pro-font-size-lg, 18px);
  
  /* Results */
  --palette-item-height: 44px;
  --palette-item-padding: var(--pro-space-3, 12px) var(--pro-space-4, 16px);
  
  /* Animation */
  --palette-transition-speed: 150ms;
  --palette-easing: cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Colors - theme aware */
  --palette-bg: var(--pro-bg-elevated, #ffffff);
  --palette-border: var(--pro-border-color, #e1e4e8);
  --palette-shadow: var(--pro-shadow-xl, 0 25px 50px -12px rgba(0, 0, 0, 0.25));
  --palette-overlay-bg: var(--pro-backdrop-bg, rgba(0, 0, 0, 0.5));
  
  --palette-input-bg: var(--pro-bg-primary, #ffffff);
  --palette-input-text: var(--pro-text-primary, #24292f);
  --palette-input-placeholder: var(--pro-text-muted, #6e7781);
  
  --palette-item-bg: transparent;
  --palette-item-bg-hover: var(--pro-bg-secondary, #f6f8fa);
  --palette-item-bg-selected: var(--pro-accent-primary, #0969da);
  --palette-item-text: var(--pro-text-primary, #24292f);
  --palette-item-text-selected: var(--pro-text-on-accent, #ffffff);
  --palette-item-hint: var(--pro-text-muted, #6e7781);
  
  --palette-group-title: var(--pro-text-tertiary, #8c959f);
  --palette-kbd-bg: var(--pro-bg-tertiary, #f0f3f6);
  --palette-kbd-border: var(--pro-border-color, #d0d7de);
  --palette-kbd-text: var(--pro-text-secondary, #57606a);
}

/* Light theme overrides */
[data-theme="light"] {
  --palette-bg: var(--pro-bg-elevated, #ffffff);
  --palette-border: var(--pro-border-color, #d0d7de);
  --palette-overlay-bg: var(--pro-backdrop-bg, rgba(0, 0, 0, 0.3));
  --palette-input-bg: var(--pro-bg-primary, #ffffff);
  --palette-input-text: var(--pro-text-primary, #1f2328);
  --palette-input-placeholder: var(--pro-text-muted, #8c959f);
  --palette-item-bg-hover: var(--pro-bg-secondary, #f6f8fa);
  --palette-item-bg-selected: var(--pro-accent-primary, #0969da);
  --palette-item-text: var(--pro-text-primary, #1f2328);
  --palette-item-hint: var(--pro-text-muted, #8c959f);
  --palette-group-title: var(--pro-text-tertiary, #8c959f);
  --palette-kbd-bg: var(--pro-bg-tertiary, #eaeef2);
  --palette-kbd-border: var(--pro-border-color, #d0d7de);
  --palette-kbd-text: var(--pro-text-secondary, #656d76);
}

/* Even Funkyer theme overrides - neon disco style! */
[data-theme="even-funkyer"] {
  --palette-bg: var(--pro-bg-elevated, #200040);
  --palette-border: var(--pro-border-color, #ff00ff);
  --palette-shadow: 0 0 40px rgba(255, 0, 255, 0.5), 0 0 80px rgba(0, 255, 255, 0.3);
  --palette-overlay-bg: rgba(10, 0, 21, 0.85);
  --palette-input-bg: var(--pro-bg-primary, #0a0015);
  --palette-input-text: var(--pro-text-primary, #ffffff);
  --palette-input-placeholder: var(--pro-text-muted, #99ccff);
  --palette-item-bg-hover: rgba(255, 0, 255, 0.15);
  --palette-item-bg-selected: linear-gradient(90deg, #ff00ff, #00ffff);
  --palette-item-text: var(--pro-text-primary, #ffffff);
  --palette-item-text-selected: #ffffff;
  --palette-item-hint: var(--pro-text-secondary, #cc99ff);
  --palette-group-title: var(--pro-accent-secondary, #00ffff);
  --palette-kbd-bg: rgba(255, 0, 255, 0.2);
  --palette-kbd-border: var(--pro-border-color, #ff00ff);
  --palette-kbd-text: #00ffff;
}

/* Even Funkyer - add glow effects */
[data-theme="even-funkyer"] .command-palette {
  border-width: 2px;
  animation: palette-glow 2s ease-in-out infinite alternate;
}

[data-theme="even-funkyer"] .command-palette__input {
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

[data-theme="even-funkyer"] .command-palette__item.is-selected {
  background: linear-gradient(90deg, rgba(255, 0, 255, 0.4), rgba(0, 255, 255, 0.4));
  box-shadow: 0 0 15px rgba(255, 0, 255, 0.5);
}

[data-theme="even-funkyer"] .command-palette__kbd {
  box-shadow: 0 0 8px rgba(255, 0, 255, 0.4);
}

@keyframes palette-glow {
  from { box-shadow: 0 0 30px rgba(255, 0, 255, 0.4), 0 0 60px rgba(0, 255, 255, 0.2); }
  to { box-shadow: 0 0 40px rgba(0, 255, 255, 0.4), 0 0 80px rgba(255, 0, 255, 0.2); }
}

/* ==========================================================================
   Overlay
   ========================================================================== */

.command-palette-overlay {
  position: fixed;
  inset: 0;
  background: var(--palette-overlay-bg);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--palette-transition-speed) var(--palette-easing),
              visibility var(--palette-transition-speed);
}

.command-palette-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================================
   Container
   ========================================================================== */

.command-palette {
  position: fixed;
  top: 20%;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  width: var(--palette-width);
  max-width: calc(100vw - var(--pro-space-6, 24px) * 2);
  max-height: var(--palette-max-height);
  background: var(--palette-bg);
  border: 1px solid var(--palette-border);
  border-radius: var(--palette-border-radius);
  box-shadow: var(--palette-shadow);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--palette-transition-speed) var(--palette-easing),
              visibility var(--palette-transition-speed),
              transform var(--palette-transition-speed) var(--palette-easing);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.command-palette.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   Search Input
   ========================================================================== */

.command-palette__search {
  display: flex;
  align-items: center;
  gap: var(--pro-space-3, 12px);
  padding: var(--pro-space-3, 12px) var(--pro-space-4, 16px);
  border-bottom: 1px solid var(--palette-border);
  background: var(--palette-input-bg);
}

.command-palette__search-icon {
  flex-shrink: 0;
  width: var(--pro-icon-size, 20px);
  height: var(--pro-icon-size, 20px);
  color: var(--palette-input-placeholder);
}

.command-palette__input {
  flex: 1;
  height: var(--palette-input-height);
  padding: 0;
  border: none;
  background: transparent;
  font-size: var(--palette-input-font-size);
  font-family: inherit;
  color: var(--palette-input-text);
  outline: none;
}

.command-palette__input::placeholder {
  color: var(--palette-input-placeholder);
}

.command-palette__search-hint {
  display: flex;
  align-items: center;
  gap: var(--pro-space-1, 4px);
  flex-shrink: 0;
}

/* Keyboard shortcuts */
.command-palette__kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 var(--pro-space-2, 8px);
  background: var(--palette-kbd-bg);
  border: 1px solid var(--palette-kbd-border);
  border-radius: var(--pro-radius-sm, 4px);
  font-family: var(--pro-font-mono, monospace);
  font-size: var(--pro-font-size-xs, 11px);
  color: var(--palette-kbd-text);
  white-space: nowrap;
}

/* ==========================================================================
   Results Container
   ========================================================================== */

.command-palette__results {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
}

/* Empty state */
.command-palette__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--pro-space-8, 32px);
  color: var(--palette-input-placeholder);
  text-align: center;
}

.command-palette__empty-icon {
  font-size: 32px;
  margin-bottom: var(--pro-space-3, 12px);
  opacity: 0.5;
}

/* ==========================================================================
   Result Items (Phase 2+)
   ========================================================================== */

.command-palette__group {
  padding: var(--pro-space-2, 8px) 0;
}

.command-palette__group-title {
  padding: var(--pro-space-1, 4px) var(--pro-space-4, 16px);
  font-size: var(--pro-font-size-xs, 11px);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--palette-group-title);
}

.command-palette__item {
  display: flex;
  align-items: center;
  gap: var(--pro-space-3, 12px);
  height: var(--palette-item-height);
  padding: var(--palette-item-padding);
  background: var(--palette-item-bg);
  color: var(--palette-item-text);
  cursor: pointer;
  transition: background-color 0.1s ease;
}

.command-palette__item:hover,
.command-palette__item.is-hovered {
  background: var(--palette-item-bg-hover);
}

.command-palette__item.is-selected {
  background: var(--palette-item-bg-selected);
  color: var(--palette-item-text-selected);
}

.command-palette__item.is-selected .command-palette__item-hint,
.command-palette__item.is-selected .command-palette__kbd {
  color: var(--palette-item-text-selected);
  opacity: 0.8;
}

.command-palette__item-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.command-palette__item-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.command-palette__item-title {
  font-size: var(--pro-font-size-sm, 14px);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.command-palette__item-hint {
  font-size: var(--pro-font-size-xs, 11px);
  color: var(--palette-item-hint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.command-palette__item-shortcut {
  flex-shrink: 0;
  display: flex;
  gap: var(--pro-space-1, 4px);
}

/* Highlight matches */
.command-palette__highlight {
  background: rgba(255, 213, 0, 0.3);
  border-radius: 2px;
}

.command-palette__item.is-selected .command-palette__highlight {
  background: rgba(255, 255, 255, 0.3);
}

/* Recent items */
.command-palette__item--recent .command-palette__item-icon {
  color: var(--pro-warning, #bf8700);
}

.command-palette__item--recent.is-selected .command-palette__item-icon {
  color: var(--palette-item-text-selected);
}

/* ==========================================================================
   SelectableList Integration
   ========================================================================== */

/* List container fills results area */
.command-palette__list-container {
  height: 100%;
}

/* SelectableList wrapper inherits palette styling */
/* Override selectable-list's own scroll - let command-palette__results handle it */
.command-palette__list-container .selectable-list {
  background: transparent;
  max-height: none;
  overflow-y: visible;
  border: none;
  box-shadow: none;
}

/* Use is-focused as the primary highlight state (SelectableList uses focus for keyboard nav) */
.command-palette__item.is-focused {
  background: var(--palette-item-bg-selected);
  color: var(--palette-item-text-selected);
}

.command-palette__item.is-focused .command-palette__item-hint,
.command-palette__item.is-focused .command-palette__kbd {
  color: var(--palette-item-text-selected);
  opacity: 0.8;
}

.command-palette__item.is-focused .command-palette__item-icon {
  color: var(--palette-item-text-selected);
}

/* Group header styling within SelectableList */
.command-palette__list-container .selectable-list__group-header {
  position: static; /* Remove sticky positioning - overlaps items when scrolling */
  padding: var(--pro-space-1, 4px) var(--pro-space-4, 16px);
  font-size: var(--pro-font-size-xs, 11px);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--palette-group-title);
  background: transparent;
}

/* Empty state within SelectableList */
.command-palette__list-container .selectable-list__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--pro-space-8, 32px);
  color: var(--palette-input-placeholder);
  text-align: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.command-palette__footer {
  display: flex;
  align-items: center;
  gap: var(--pro-space-4, 16px);
  padding: var(--pro-space-2, 8px) var(--pro-space-4, 16px);
  border-top: 1px solid var(--palette-border);
  background: var(--pro-bg-secondary, #f6f8fa);
  font-size: var(--pro-font-size-xs, 11px);
  color: var(--palette-group-title);
}

.command-palette__footer-item {
  display: flex;
  align-items: center;
  gap: var(--pro-space-1, 4px);
}

.command-palette__footer .command-palette__kbd {
  height: 20px;
  min-width: 20px;
  font-size: 10px;
}

/* ==========================================================================
   Loading State
   ========================================================================== */

.command-palette__loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--pro-space-4, 16px);
  color: var(--palette-input-placeholder);
}

.command-palette__spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--palette-border);
  border-top-color: var(--pro-accent-primary, #0969da);
  border-radius: 50%;
  animation: palette-spin 0.6s linear infinite;
}

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

/* ==========================================================================
   Breadcrumb (Phase 6)
   ========================================================================== */

.command-palette__breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--pro-space-2, 8px);
  padding: var(--pro-space-2, 8px) var(--pro-space-4, 16px);
  background: var(--pro-bg-secondary, #f6f8fa);
  border-bottom: 1px solid var(--palette-border);
  font-size: var(--pro-font-size-sm, 13px);
  color: var(--palette-item-hint);
}

.command-palette__breadcrumb-back {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  background: var(--palette-kbd-bg);
  border-radius: var(--pro-radius-sm, 4px);
  color: var(--palette-item-text);
  cursor: pointer;
  transition: background-color 100ms ease;
}

.command-palette__breadcrumb-back:hover {
  background: var(--palette-item-bg-hover);
}

.command-palette__breadcrumb-back:focus-visible {
  outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--focus-ring-shadow);
}

.command-palette__breadcrumb-path {
  display: flex;
  align-items: center;
  gap: var(--pro-space-2, 8px);
}

.command-palette__breadcrumb-sep {
  opacity: 0.5;
}

/* ==========================================================================
   Loading State (Phase 6)
   ========================================================================== */

.command-palette__loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--pro-space-3, 12px);
  padding: var(--pro-space-8, 32px);
  color: var(--palette-input-placeholder);
}

.command-palette__loading-icon {
  font-size: 24px;
  color: var(--pro-accent-primary, #0969da);
}

/* ==========================================================================
   Error State (Phase 6)
   ========================================================================== */

.command-palette__error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--pro-space-3, 12px);
  padding: var(--pro-space-8, 32px);
  text-align: center;
}

.command-palette__error-icon {
  font-size: 24px;
  color: var(--pro-danger, #cf222e);
}

.command-palette__error p {
  margin: 0;
  color: var(--palette-item-hint);
}

.command-palette__error-retry {
  padding: var(--pro-space-2, 8px) var(--pro-space-4, 16px);
  border: 1px solid var(--palette-border);
  border-radius: var(--pro-radius-sm, 4px);
  background: var(--palette-bg);
  color: var(--palette-item-text);
  font-size: var(--pro-font-size-sm, 13px);
  cursor: pointer;
  transition: background-color 100ms ease;
}

.command-palette__error-retry:hover {
  background: var(--palette-item-bg-hover);
}

.command-palette__error-retry:focus-visible {
  outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--focus-ring-shadow);
}

/* ==========================================================================
   Badges (Phase 6)
   ========================================================================== */

.command-palette__item-badge {
  flex-shrink: 0;
  padding: 2px 8px;
  background: var(--pro-bg-tertiary, #f0f3f6);
  border-radius: var(--pro-radius-full, 999px);
  font-size: var(--pro-font-size-xs, 11px);
  color: var(--palette-item-hint);
}

.command-palette__item.is-selected .command-palette__item-badge {
  background: rgba(255, 255, 255, 0.2);
  color: var(--palette-item-text-selected);
}

/* ==========================================================================
   Context Badge (Phase 7)
   ========================================================================== */

.command-palette__item-context {
  flex-shrink: 0;
  padding: 2px 6px;
  background: var(--pro-info, #0969da);
  border-radius: var(--pro-radius-sm, 4px);
  font-size: var(--pro-font-size-xs, 10px);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pro-text-on-accent, #ffffff);
}

.command-palette__item.is-selected .command-palette__item-context {
  background: rgba(255, 255, 255, 0.3);
}

/* ==========================================================================
   Mobile Responsive
   ========================================================================== */

@media (max-width: 640px) {
  .command-palette {
    /* Position from top to avoid virtual keyboard issues */
    top: 0;
    bottom: auto;
    left: 0;
    right: 0;
    transform: translateY(-100%);
    width: 100%;
    max-width: 100%;
    /* Use svh (small viewport height) which doesn't change with keyboard */
    /* Fallback to vh for older browsers */
    max-height: 70vh;
    max-height: 70svh;
    border-radius: 0 0 var(--palette-border-radius) var(--palette-border-radius);
    /* Account for safe area at top (notch) */
    padding-top: env(safe-area-inset-top, 0);
  }

  .command-palette.is-open {
    transform: translateY(0);
  }

  .command-palette__input {
    font-size: 16px; /* Prevent iOS zoom */
  }

  .command-palette__footer {
    padding-bottom: var(--pro-space-2, 8px);
  }

  .command-palette__item {
    height: 52px;
  }

  /* Hide footer hints on mobile - more space for results */
  .command-palette__footer .command-palette__kbd {
    display: none;
  }

  .command-palette__search-hint {
    display: none;
  }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .command-palette,
  .command-palette-overlay {
    transition: none;
  }
  
  .command-palette__spinner {
    animation: none;
  }
}

/* ==========================================================================
   Screen Reader Only
   ========================================================================== */

.command-palette__sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Print
   ========================================================================== */

@media print {
  .command-palette,
  .command-palette-overlay {
    display: none !important;
  }
}

/* ==========================================================================
   High Contrast Mode
   ========================================================================== */

@media (prefers-contrast: high) {
  .command-palette {
    border-width: 3px;
    box-shadow: none;
  }

  .command-palette__search {
    border-bottom-width: 2px;
  }

  .command-palette__input:focus-visible {
    --focus-ring-width: 3px;
    --focus-ring-color: Highlight;
  }

  .command-palette__kbd {
    border-width: 2px;
  }

  .command-palette__item {
    border: 1px solid transparent;
  }

  .command-palette__item.is-focused,
  .command-palette__item.is-selected {
    border-color: currentColor;
    background: var(--pro-bg-tertiary);
    color: var(--pro-text-primary);
  }

  .command-palette__item.is-focused .command-palette__item-hint,
  .command-palette__item.is-focused .command-palette__kbd,
  .command-palette__item.is-selected .command-palette__item-hint,
  .command-palette__item.is-selected .command-palette__kbd {
    color: var(--pro-text-primary);
    opacity: 1;
  }

  .command-palette__highlight {
    background: transparent;
    text-decoration: underline;
    font-weight: 700;
  }

  .command-palette__footer {
    border-top-width: 2px;
  }

  .command-palette__breadcrumb {
    border-bottom-width: 2px;
  }

  .command-palette__breadcrumb-back:focus-visible {
    --focus-ring-width: 3px;
    --focus-ring-color: Highlight;
  }

  .command-palette__error-retry {
    border-width: 2px;
  }

  .command-palette__error-retry:focus-visible {
    --focus-ring-width: 3px;
    --focus-ring-color: Highlight;
  }

  .command-palette__spinner {
    border-width: 3px;
  }

  /* Disable glow animation */
  @keyframes palette-glow {
    from { box-shadow: none; }
    to { box-shadow: none; }
  }
}