/**
 * Panel Search Component
 * ======================
 * Reusable search input for panels with list content.
 * Used with lib/panel_search.js module.
 */

/* Search Container */
.panel-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--terminal-bg, #0a0a0a);
  border: 1px solid var(--terminal-border, #333);
  border-radius: 6px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.panel-search:focus-within {
  border-color: var(--color-primary, #4a90e2);
  box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

/* Search Icon */
.panel-search__icon {
  font-size: 0.875rem;
  opacity: 0.5;
  transition: opacity 0.15s ease;
}

.panel-search:focus-within .panel-search__icon {
  opacity: 0.8;
}

/* Search Input */
.panel-search__input {
  flex: 1;
  min-width: 0;
  padding: 0;
  background: transparent;
  border: none;
  color: var(--terminal-text-primary, #e0e0e0);
  font-family: var(--font-mono, 'Fira Code', monospace);
  font-size: 0.875rem;
}

.panel-search__input::placeholder {
  color: var(--terminal-text-muted, #666);
}

.panel-search__input:focus {
  outline: none;
}

/* Keyboard Hint */
.panel-search__hint {
  padding: 0.125rem 0.375rem;
  background: var(--terminal-bg-elevated, #1a1a1a);
  border: 1px solid var(--terminal-border, #333);
  border-radius: 4px;
  color: var(--terminal-text-muted, #666);
  font-size: 0.625rem;
  font-family: var(--font-mono, monospace);
  opacity: 0.6;
  transition: opacity 0.15s ease;
}

.panel-search:focus-within .panel-search__hint {
  opacity: 0;
}

/* Clear Button (inside input when there's a value) */
.panel-search__clear {
  display: none;
  padding: 0.125rem;
  background: transparent;
  border: none;
  color: var(--terminal-text-muted, #666);
  font-size: 0.75rem;
  cursor: pointer;
  transition: color 0.15s ease;
}

.panel-search__clear:hover {
  color: var(--terminal-text-primary, #e0e0e0);
}

.panel-search--has-value .panel-search__clear {
  display: block;
}

.panel-search--has-value .panel-search__hint {
  display: none;
}

/* ========================================
 * EMPTY STATE
 * Shown when search has no results
 * ======================================== */

.panel-search__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  animation: panel-search-empty-enter 0.2s ease-out;
}

@keyframes panel-search-empty-enter {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel-search__empty-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  opacity: 0.4;
}

.panel-search__empty-text {
  margin: 0 0 1rem 0;
  font-size: 0.875rem;
  color: var(--terminal-text-muted, #666);
}

.panel-search__clear-btn {
  padding: 0.375rem 0.75rem;
  background: transparent;
  border: 1px solid var(--terminal-border, #333);
  border-radius: 4px;
  color: var(--terminal-text-secondary, #999);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.panel-search__clear-btn:hover {
  background: var(--terminal-bg-elevated, #1a1a1a);
  border-color: var(--color-primary, #4a90e2);
  color: var(--color-primary, #4a90e2);
}

/* ========================================
 * RESULT COUNT
 * Optional indicator showing matching items
 * ======================================== */

.panel-search__count {
  font-size: 0.6875rem;
  color: var(--terminal-text-muted, #666);
  white-space: nowrap;
}

.panel-search__count--no-results {
  color: var(--color-warning, #f59e0b);
}

/* ========================================
 * VARIANTS
 * Different sizes and contexts
 * ======================================== */

/* Compact variant for tight spaces */
.panel-search--compact {
  padding: 0.375rem 0.5rem;
}

.panel-search--compact .panel-search__input {
  font-size: 0.8125rem;
}

.panel-search--compact .panel-search__icon {
  font-size: 0.75rem;
}

/* Full-width variant */
.panel-search--full {
  width: 100%;
}

/* Inline variant (no border, blends into header) */
.panel-search--inline {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--terminal-border, #333);
  border-radius: 0;
  padding-left: 0;
  padding-right: 0;
}

.panel-search--inline:focus-within {
  border-color: var(--color-primary, #4a90e2);
  box-shadow: 0 1px 0 0 var(--color-primary, #4a90e2);
}

/* ========================================
 * FILTER TAGS
 * Optional quick filter buttons
 * ======================================== */

.panel-search__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.5rem;
}

.panel-search__filter-tag {
  padding: 0.25rem 0.5rem;
  background: var(--terminal-bg-elevated, #1a1a1a);
  border: 1px solid var(--terminal-border, #333);
  border-radius: 12px;
  color: var(--terminal-text-secondary, #999);
  font-size: 0.6875rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.panel-search__filter-tag:hover {
  border-color: var(--terminal-text-muted, #666);
  color: var(--terminal-text-primary, #e0e0e0);
}

.panel-search__filter-tag--active {
  background: var(--color-primary-dark, #1a2a4a);
  border-color: var(--color-primary, #4a90e2);
  color: var(--color-primary, #4a90e2);
}

/* ========================================
 * ACCESSIBILITY
 * ======================================== */

/* Screen reader announcement for result count */
.panel-search__sr-count {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .panel-search__empty {
    animation: none;
  }
}