/*
 * Excel Filter Formula Builder - Custom Styles
 * 
 * Minimal, clean styling using the site's color palette.
 * All colors use CSS variables for consistent theming and dark mode support.
 */

/* Condition Group Styling */
.condition-group {
  border: 1px solid var(--color-dark-accent);
  border-radius: 0.5rem;
  padding: 1rem;
  background-color: rgba(255, 255, 255, 0.5);
  transition: border-color 0.2s ease;
}

.dark .condition-group {
  background-color: rgba(51, 67, 136, 0.1);
  border-color: var(--color-brand-primary);
}

.condition-group:hover {
  border-color: var(--color-brand-primary);
}

/* Group Header */
.condition-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-dark-accent);
}

.dark .condition-group-header {
  border-bottom-color: rgba(127, 101, 220, 0.3);
}

.remove-group-btn {
  padding: 0.25rem;
  color: var(--color-dark-accent);
  transition: color 0.2s ease;
  background: none;
  border: none;
  cursor: pointer;
}

.remove-group-btn:hover {
  color: #ef4444;
}

/* Conditions List */
.conditions-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

/* Condition Row */
.condition-row {
  display: grid;
  grid-template-columns: minmax(60px, 100px) minmax(120px, 180px) 1fr auto auto;
  gap: 0.5rem;
  align-items: center;
}

@media (max-width: 640px) {
  .condition-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

.condition-cell-ref {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-dark-accent);
  border-radius: 0.375rem;
  background-color: white;
  color: var(--color-text-dark);
  font-size: 0.875rem;
  font-weight: 500;
  transition: border-color 0.2s ease;
  text-align: center;
}

.dark .condition-cell-ref {
  background-color: var(--color-dark-shades);
  color: var(--color-text-bright);
  border-color: var(--color-brand-primary);
}

.condition-cell-ref:focus {
  outline: none;
  border-color: var(--color-brand-primary);
  box-shadow: 0 0 0 2px rgba(127, 101, 220, 0.2);
}

.condition-type {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-dark-accent);
  border-radius: 0.375rem;
  background-color: white;
  color: var(--color-text-dark);
  font-size: 0.875rem;
  transition: border-color 0.2s ease;
}

.dark .condition-type {
  background-color: var(--color-dark-shades);
  color: var(--color-text-bright);
  border-color: var(--color-brand-primary);
}

.condition-type:focus {
  outline: none;
  border-color: var(--color-brand-primary);
  box-shadow: 0 0 0 2px rgba(127, 101, 220, 0.2);
}

.condition-value {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-dark-accent);
  border-radius: 0.375rem;
  background-color: white;
  color: var(--color-text-dark);
  font-size: 0.875rem;
  transition: border-color 0.2s ease;
}

.dark .condition-value {
  background-color: var(--color-dark-shades);
  color: var(--color-text-bright);
  border-color: var(--color-brand-primary);
}

.condition-value:focus {
  outline: none;
  border-color: var(--color-brand-primary);
  box-shadow: 0 0 0 2px rgba(127, 101, 220, 0.2);
}

.case-sensitive-label {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
  color: var(--color-dark-accent);
  font-size: 0.75rem;
  white-space: nowrap;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  transition: background-color 0.2s ease;
}

.case-sensitive-label:hover {
  background-color: rgba(127, 101, 220, 0.1);
}

.case-sensitive-checkbox {
  cursor: pointer;
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-brand-primary);
}

.remove-condition-btn {
  padding: 0.25rem;
  color: var(--color-dark-accent);
  transition: color 0.2s ease;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 0.25rem;
}

.remove-condition-btn:hover {
  color: #ef4444;
  background-color: rgba(239, 68, 68, 0.1);
}

/* Add Condition Link */
.condition-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 0.75rem;
}

.add-condition-link,
.paste-values-link {
  color: var(--color-brand-primary);
  font-size: 0.875rem;
  cursor: pointer;
  padding: 0.5rem 0;
  background: none;
  border: none;
  text-align: left;
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
}

.add-condition-link:hover,
.paste-values-link:hover {
  color: var(--color-dark-shades);
  text-decoration: underline;
}

.dark .add-condition-link:hover,
.dark .paste-values-link:hover {
  color: var(--color-light-accent);
}

/* Logic Toggle (AND/OR) */
.logic-toggle {
  display: flex;
  align-items: center;
  margin: 0.75rem 0;
  padding: 0.5rem;
  background-color: rgba(127, 101, 220, 0.05);
  border-radius: 0.375rem;
}

.dark .logic-toggle {
  background-color: rgba(127, 101, 220, 0.1);
}

.logic-option {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-right: 1rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text-dark);
}

.dark .logic-option {
  color: var(--color-text-bright);
}

.logic-option input[type="radio"] {
  cursor: pointer;
  accent-color: var(--color-brand-primary);
}

.logic-option:hover {
  color: var(--color-brand-primary);
}

/* Return Value Container */
.return-value-container {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(150, 158, 165, 0.2);
}

.dark .return-value-container {
  border-top-color: rgba(127, 101, 220, 0.2);
}

.return-value-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-dark-accent);
  border-radius: 0.375rem;
  background-color: white;
  color: var(--color-text-dark);
  font-size: 0.875rem;
  transition: border-color 0.2s ease;
  margin-bottom: 0.5rem;
}

.dark .return-value-input {
  background-color: var(--color-dark-shades);
  color: var(--color-text-bright);
  border-color: var(--color-brand-primary);
}

.return-value-input:focus {
  outline: none;
  border-color: var(--color-brand-primary);
  box-shadow: 0 0 0 2px rgba(127, 101, 220, 0.2);
}

.force-text-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--color-dark-accent);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  transition: background-color 0.2s ease;
  width: fit-content;
}

.force-text-label:hover {
  background-color: rgba(127, 101, 220, 0.1);
}

.dark .force-text-label {
  color: var(--color-text-bright);
}

.force-text-checkbox {
  cursor: pointer;
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-brand-primary);
}

/* Formula Display */
.formula-display-container {
  border: 1px solid var(--color-dark-accent);
  border-radius: 0.5rem;
  background-color: #f8f9fa;
  overflow-x: auto;
}

.dark .formula-display-container {
  background-color: rgba(51, 67, 136, 0.2);
  border-color: var(--color-brand-primary);
}

.formula-display {
  padding: 1rem;
  margin: 0;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-dark);
  white-space: pre;
  overflow-x: auto;
}

.dark .formula-display {
  color: var(--color-text-bright);
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .condition-group {
    padding: 0.75rem;
  }
  
  .logic-toggle {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .formula-display {
    font-size: 0.75rem;
  }
}

/* Animation for smooth transitions */
.condition-row {
  animation: slideIn 0.3s ease-out;
}

.condition-group {
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade out animation for removing elements */
.condition-row.removing,
.condition-group.removing {
  animation: slideOut 0.2s ease-in forwards;
}

@keyframes slideOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-8px);
  }
}

/* Focus states for accessibility */
.condition-type:focus-visible,
.condition-value:focus-visible,
.return-value-input:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: 2px;
}

.remove-condition-btn:focus-visible,
.remove-group-btn:focus-visible,
.add-condition-link:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: 2px;
  border-radius: 0.25rem;
}

/* Highlight empty/required inputs */
.condition-value.needs-input,
.return-value-input.needs-input,
#cell-reference.needs-input,
.condition-cell-ref.needs-input {
  border-color: #ef4444 !important;
  border-width: 2px;
  background-color: rgba(239, 68, 68, 0.1);
  animation: pulseGlow 2s ease-in-out infinite;
}

.dark .condition-value.needs-input,
.dark .return-value-input.needs-input,
.dark #cell-reference.needs-input,
.dark .condition-cell-ref.needs-input {
  background-color: rgba(239, 68, 68, 0.15);
  border-color: #fca5a5 !important;
}

/* Subtle pulse animation for empty inputs */
@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.3);
  }
  50% {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
  }
}

/* Remove highlight when input has content or is focused */
.condition-value.needs-input:focus,
.return-value-input.needs-input:focus,
#cell-reference.needs-input:focus,
.condition-cell-ref.needs-input:focus,
.condition-value.has-content,
.return-value-input.has-content,
#cell-reference.has-content,
.condition-cell-ref.has-content {
  border-width: 1px;
  animation: none;
}

.condition-value.needs-input:focus,
.return-value-input.needs-input:focus,
#cell-reference.needs-input:focus,
.condition-cell-ref.needs-input:focus {
  border-color: var(--color-brand-primary);
  border-width: 1px;
}

/* Paste Preview Styles */
.paste-preview {
  border: 2px solid var(--color-brand-primary);
  border-radius: 0.5rem;
  background-color: rgba(127, 101, 220, 0.05);
  padding: 1rem;
  max-height: 400px;
  overflow-y: auto;
}

.dark .paste-preview {
  background-color: rgba(127, 101, 220, 0.1);
  border-color: var(--color-brand-primary);
}

.paste-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-dark-accent);
}

.dark .paste-preview-header {
  border-bottom-color: rgba(127, 101, 220, 0.3);
}

.paste-preview-count {
  font-weight: 600;
  color: var(--color-light-accent);
  font-size: 0.875rem;
}

.paste-clear-btn {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.375rem 0.75rem;
  background-color: var(--color-light-accent);
  color: var(--color-dark-shades);
  border: none;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.paste-clear-btn:hover {
  background-color: var(--color-dark-accent);
  color: white;
}

.dark .paste-clear-btn {
  background-color: var(--color-dark-accent);
  color: white;
}

.dark .paste-clear-btn:hover {
  background-color: var(--color-light-accent);
  color: var(--color-dark-shades);
}

.paste-preview-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.paste-value-chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  background-color: white;
  border: 1px solid var(--color-dark-accent);
  border-radius: 0.375rem;
  transition: all 0.2s ease;
  animation: slideIn 0.2s ease-out;
}

.dark .paste-value-chip {
  background-color: var(--color-surface-dark);
  border-color: rgba(127, 101, 220, 0.3);
}

.paste-value-chip:hover {
  border-color: var(--color-brand-primary);
  box-shadow: 0 2px 4px rgba(127, 101, 220, 0.1);
}

.paste-value-index {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  background-color: var(--color-brand-primary);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 600;
}

.paste-value-text {
  flex: 1;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.875rem;
  color: var(--color-text-dark);
  word-break: break-word;
}

.dark .paste-value-text {
  color: var(--color-text-light);
}

/* Hidden utility for paste preview */
.paste-preview.hidden {
  display: none;
}

#paste-values.hidden {
  display: none;
}