/* ==============================================
   ADVANCED FEATURES STYLES
   Phase 11: Advanced filtering, bulk ops, search
   ============================================== */

/* ==============================================
   ADVANCED FILTERS PANEL
   ============================================== */

.filters-panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  margin-bottom: var(--spacing-4);
}

.filters-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.filters-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.filter-count-badge {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: 2px 8px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
}

.filters-actions {
  display: flex;
  gap: var(--spacing-2);
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.filter-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text);
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.filter-input {
  width: 100%;
  padding: var(--spacing-3);
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-base);
  color: var(--text);
  font-size: var(--font-size-sm);
  transition: all 0.2s ease;
}

.filter-input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(77, 163, 255, 0.1);
}

/* Amount range slider */
.amount-range {
  display: flex;
  gap: var(--spacing-2);
  align-items: center;
}

.amount-range-input {
  flex: 1;
}

.amount-range-separator {
  color: var(--muted);
  font-weight: var(--font-weight-medium);
}

/* Category checkboxes */
.category-filters {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
  max-height: 200px;
  overflow-y: auto;
  padding: var(--spacing-2);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-base);
}

.category-filter-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2);
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
  cursor: pointer;
}

.category-filter-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.category-filter-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.category-filter-label {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

/* Saved filters */
.saved-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--border);
}

.saved-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  background: rgba(77, 163, 255, 0.1);
  border: 1px solid var(--blue);
  border-radius: var(--radius-full);
  color: var(--blue);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all 0.2s ease;
}

.saved-filter-chip:hover {
  background: rgba(77, 163, 255, 0.2);
  transform: translateY(-1px);
}

.saved-filter-chip i {
  font-size: 0.875rem;
}

/* Filter summary */
.filter-summary {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  background: rgba(77, 163, 255, 0.05);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius-base);
  margin-top: var(--spacing-4);
  font-size: var(--font-size-sm);
  color: var(--text);
}

.filter-summary i {
  color: var(--blue);
  font-size: 1.25rem;
}

/* ==============================================
   BULK OPERATIONS BAR
   ============================================== */

.bulk-actions-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--card-bg);
  border-top: 2px solid var(--blue);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3);
  padding: var(--spacing-4) var(--spacing-6);
  z-index: 1000;
  display: none;
  align-items: center;
  gap: var(--spacing-4);
  animation: bulk-bar-slide-up 0.3s ease;
}

@keyframes bulk-bar-slide-up {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.bulk-selection-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--text);
}

.bulk-selection-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  background: var(--blue);
  color: #fff;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  padding: 0 var(--spacing-2);
}

.bulk-actions {
  display: flex;
  gap: var(--spacing-2);
  margin-left: auto;
}

.bulk-action-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-base);
  color: var(--text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all 0.2s ease;
}

.bulk-action-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-1px);
}

.bulk-action-btn.danger {
  border-color: var(--red);
  color: var(--red);
}

.bulk-action-btn.danger:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--red);
}

/* Bulk select checkboxes */
.bulk-select-checkbox {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.bulk-select-checkbox:checked {
  background: var(--blue);
  border-color: var(--blue);
}

.bulk-select-checkbox:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ==============================================
   ADVANCED SEARCH
   ============================================== */

.search-container {
  position: relative;
  width: 100%;
  max-width: 600px;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  padding-left: var(--spacing-10);
  padding-right: var(--spacing-10);
  background: var(--input-bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text);
  font-size: var(--font-size-base);
  transition: all 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(77, 163, 255, 0.1);
}

.search-icon {
  position: absolute;
  left: var(--spacing-4);
  color: var(--muted);
  font-size: 1.25rem;
  pointer-events: none;
}

.search-clear {
  position: absolute;
  right: var(--spacing-4);
  color: var(--muted);
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.search-input:not(:placeholder-shown) + .search-clear {
  opacity: 1;
}

.search-clear:hover {
  color: var(--text);
}

/* Search suggestions dropdown */
.search-suggestions {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 400px;
  overflow-y: auto;
  z-index: 1000;
  animation: dropdown-fade-in 0.2s ease;
}

@keyframes dropdown-fade-in {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.search-suggestions-section {
  padding: var(--spacing-3);
}

.search-suggestions-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-2);
  padding: 0 var(--spacing-2);
}

.search-suggestion-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all 0.2s ease;
}

.search-suggestion-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.search-suggestion-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(77, 163, 255, 0.1);
  color: var(--blue);
  border-radius: var(--radius-base);
  font-size: 1rem;
}

.search-suggestion-content {
  flex: 1;
}

.search-suggestion-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text);
}

.search-suggestion-meta {
  font-size: var(--font-size-xs);
  color: var(--muted);
  margin-top: 2px;
}

/* Search keyboard shortcut hint */
.search-shortcut-hint {
  position: absolute;
  right: var(--spacing-4);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 4px;
  opacity: 0.5;
  pointer-events: none;
}

.search-shortcut-key {
  padding: 2px 6px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: var(--font-size-xs);
  font-family: monospace;
  color: var(--text);
}

/* ==============================================
   DATA VALIDATION INDICATORS
   ============================================== */

.form-field {
  position: relative;
  margin-bottom: var(--spacing-4);
}

.form-field.has-error .form-input,
.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea {
  border-color: var(--red);
}

.form-field.has-success .form-input,
.form-field.has-success input,
.form-field.has-success select,
.form-field.has-success textarea {
  border-color: var(--green);
}

.validation-message {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-top: var(--spacing-2);
  font-size: var(--font-size-sm);
  animation: validation-slide-in 0.2s ease;
}

@keyframes validation-slide-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.validation-message.error {
  color: var(--red);
}

.validation-message.success {
  color: var(--green);
}

.validation-message i {
  font-size: 1rem;
}

/* Character counter */
.character-counter {
  font-size: var(--font-size-xs);
  color: var(--muted);
  text-align: right;
  margin-top: var(--spacing-1);
}

.character-counter.warning {
  color: var(--yellow);
}

.character-counter.error {
  color: var(--red);
}

/* ==============================================
   KEYBOARD SHORTCUTS DISPLAY
   ============================================== */

.keyboard-shortcuts-panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  max-width: 500px;
}

.shortcuts-grid {
  display: grid;
  gap: var(--spacing-3);
}

.shortcut-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-3);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-base);
}

.shortcut-keys {
  display: flex;
  gap: var(--spacing-1);
}

.shortcut-key {
  display: inline-block;
  padding: 4px 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--text);
}

.shortcut-description {
  font-size: var(--font-size-sm);
  color: var(--muted);
}

/* ==============================================
   LIGHT THEME OVERRIDES
   ============================================== */

[data-theme="light"] .filters-panel {
  background: #fff;
  border-color: #dee2e6;
}

[data-theme="light"] .filter-input {
  background: #f8f9fa;
  border-color: #ced4da;
}

[data-theme="light"] .category-filters {
  background: rgba(0, 0, 0, 0.02);
}

[data-theme="light"] .category-filter-item:hover {
  background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .bulk-actions-bar {
  background: #fff;
  border-top-color: #0d6efd;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .search-input {
  background: #f8f9fa;
  border-color: #ced4da;
}

[data-theme="light"] .search-suggestions {
  background: #fff;
  border-color: #dee2e6;
}

[data-theme="light"] .search-suggestion-item:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* ==============================================
   MOBILE RESPONSIVE
   ============================================== */

@media (max-width: 768px) {
  .filters-grid {
    grid-template-columns: 1fr;
  }

  .filters-actions {
    flex-direction: column;
    width: 100%;
  }

  .filters-actions .btn {
    width: 100%;
  }

  .bulk-actions-bar {
    padding: var(--spacing-3);
    flex-wrap: wrap;
  }

  .bulk-selection-info {
    width: 100%;
    justify-content: center;
    margin-bottom: var(--spacing-2);
  }

  .bulk-actions {
    width: 100%;
    margin-left: 0;
    flex-wrap: wrap;
  }

  .bulk-action-btn {
    flex: 1;
    justify-content: center;
  }

  .search-container {
    max-width: 100%;
  }

  .search-input {
    font-size: 16px; /* Prevent iOS zoom */
  }

  .saved-filters {
    flex-direction: column;
  }

  .saved-filter-chip {
    width: 100%;
    justify-content: center;
  }
}

/* ==============================================
   PRINT STYLES
   ============================================== */

@media print {
  .filters-panel,
  .bulk-actions-bar,
  .search-container,
  .filters-actions {
    display: none !important;
  }
}