/* ============================================
   Workflow Builder - Complete Redesign
   Dark Mode, CSS Grid, Professional UI
   ============================================ */

:root {
  --workflow-bg: #0d1117;
  --workflow-surface: #161b22;
  --workflow-surface-elevated: #1c2128;
  --workflow-border: #30363d;
  --workflow-border-hover: #484f58;
  --workflow-text: #c9d1d9;
  --workflow-text-muted: #8b949e;
  --workflow-text-light: #6e7681;
  --workflow-primary: #58a6ff;
  --workflow-primary-hover: #79c0ff;
  --workflow-success: #3fb950;
  --workflow-warning: #d29922;
  --workflow-error: #f85149;
  --workflow-accent: #bc8cff;
}

#workflowSection {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--workflow-bg);
  color: var(--workflow-text);
}

.workflow-builder-container {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
  grid-template-areas: 
    "header"
    "content";
  min-height: 0;
  background: var(--workflow-bg);
  box-sizing: border-box;
}

/* ============================================
   HEADER - Toolbar Style
   ============================================ */
.workflow-builder-header {
  grid-area: header;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--workflow-border);
  background: var(--workflow-surface);
  gap: 1.5rem;
  flex-shrink: 0;
  z-index: 10;
}

.workflow-builder-header h2 {
  color: var(--workflow-text);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.workflow-actions {
  display: grid;
  grid-auto-flow: column;
  gap: 0.5rem;
  justify-self: end;
}

.btn-workflow {
  padding: 0.5rem 1rem;
  border: 1px solid var(--workflow-border);
  border-radius: 6px;
  background: var(--workflow-surface-elevated);
  color: var(--workflow-text);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-workflow:hover {
  background: var(--workflow-surface);
  border-color: var(--workflow-border-hover);
  color: var(--workflow-text);
}

.btn-workflow.btn-new,
.btn-workflow.btn-save {
  background: var(--workflow-primary);
  color: #ffffff;
  border-color: var(--workflow-primary);
}

.btn-workflow.btn-new:hover,
.btn-workflow.btn-save:hover {
  background: var(--workflow-primary-hover);
  border-color: var(--workflow-primary-hover);
}

.btn-workflow.btn-execute {
  background: var(--workflow-success);
  color: #ffffff;
  border-color: var(--workflow-success);
}

.btn-workflow.btn-execute:hover {
  background: #4ec26a;
  border-color: #4ec26a;
}

.btn-workflow:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================
   CONTENT - Full Grid Layout
   ============================================ */
.workflow-builder-content {
  grid-area: content;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  min-height: 0;
  position: relative;
}

/* ============================================
   WORKFLOW LIST VIEW
   ============================================ */
.workflow-list-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  overflow-y: auto;
  align-content: start;
}

.workflow-card {
  background: var(--workflow-surface);
  border: 1px solid var(--workflow-border);
  border-radius: 8px;
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.15s ease;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 1rem;
  min-height: 200px;
}

.workflow-card:hover {
  border-color: var(--workflow-primary);
  background: var(--workflow-surface-elevated);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.workflow-card-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: start;
}

.workflow-card-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--workflow-text);
  margin: 0;
}

.workflow-card-description {
  color: var(--workflow-text-muted);
  font-size: 0.875rem;
  line-height: 1.5;
  margin-top: 0.5rem;
  grid-column: 1 / -1;
}

.workflow-card-stats {
  display: grid;
  grid-auto-flow: column;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--workflow-text-light);
  padding-top: 1rem;
  border-top: 1px solid var(--workflow-border);
}

.workflow-card-actions {
  display: grid;
  grid-auto-flow: column;
  gap: 0.5rem;
  justify-content: end;
}

/* ============================================
   WORKFLOW EDITOR - Full Page
   ============================================ */
.workflow-editor {
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "editor-header"
    "editor-steps"
    "editor-footer";
  height: 100%;
  min-height: 0;
  background: var(--workflow-bg);
}

.workflow-editor-header {
  grid-area: editor-header;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 1.5rem;
  border-bottom: 1px solid var(--workflow-border);
  background: var(--workflow-surface);
}

.workflow-name-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--workflow-surface-elevated);
  border: 1px solid var(--workflow-border);
  border-radius: 6px;
  color: var(--workflow-text);
  font-size: 1.25rem;
  font-weight: 600;
  box-sizing: border-box;
}

.workflow-name-input:focus {
  outline: none;
  border-color: var(--workflow-primary);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.workflow-description-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--workflow-surface-elevated);
  border: 1px solid var(--workflow-border);
  border-radius: 6px;
  color: var(--workflow-text);
  font-size: 0.9375rem;
  min-height: 60px;
  resize: vertical;
  box-sizing: border-box;
  font-family: inherit;
}

.workflow-description-input:focus {
  outline: none;
  border-color: var(--workflow-primary);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

/* ============================================
   STEPS CONTAINER - Scrollable
   ============================================ */
.workflow-steps-container {
  grid-area: editor-steps;
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
}

.workflow-steps-container h3 {
  padding: 1rem 1.5rem;
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--workflow-text-muted);
  border-bottom: 1px solid var(--workflow-border);
  background: var(--workflow-surface);
}

.workflow-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 1.5rem;
  overflow-y: auto;
  overflow-x: hidden;
  align-content: start;
}

.workflow-steps-empty {
  display: grid;
  place-items: center;
  padding: 4rem 2rem;
  text-align: center;
  color: var(--workflow-text-muted);
}

.workflow-steps-empty p {
  margin: 0.5rem 0;
  font-size: 1rem;
}

.workflow-hint {
  font-size: 0.875rem;
  color: var(--workflow-text-light);
}

/* ============================================
   STEP CARD - With Configuration
   ============================================ */
.workflow-step {
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--workflow-surface);
  border: 1px solid var(--workflow-border);
  border-radius: 8px;
  transition: all 0.15s ease;
}

.workflow-step:hover {
  border-color: var(--workflow-border-hover);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.workflow-step.expanded {
  border-color: var(--workflow-primary);
}

.step-header {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--workflow-surface-elevated);
  cursor: pointer;
  user-select: none;
}

.step-number {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--workflow-primary);
  color: #ffffff;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.step-info {
  display: grid;
  grid-template-rows: auto auto;
  gap: 0.25rem;
  min-width: 0;
}

.step-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--workflow-text);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.step-icon {
  font-size: 1.25rem;
}

.step-description {
  font-size: 0.8125rem;
  color: var(--workflow-text-muted);
}

.step-status {
  display: grid;
  grid-auto-flow: column;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.75rem;
  color: var(--workflow-text-light);
}

.step-actions {
  display: grid;
  grid-auto-flow: column;
  gap: 0.5rem;
}

.btn-step-action {
  padding: 0.375rem 0.75rem;
  background: transparent;
  border: 1px solid var(--workflow-border);
  border-radius: 6px;
  color: var(--workflow-text);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-step-action:hover {
  background: var(--workflow-surface);
  border-color: var(--workflow-border-hover);
}

.btn-step-action.btn-configure {
  background: var(--workflow-primary);
  color: #ffffff;
  border-color: var(--workflow-primary);
}

.btn-step-action.btn-configure:hover {
  background: var(--workflow-primary-hover);
}

.btn-step-action.btn-remove:hover {
  border-color: var(--workflow-error);
  color: var(--workflow-error);
}

/* ============================================
   STEP CONFIGURATION PANEL
   ============================================ */
.step-config-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--workflow-surface-elevated);
  border-top: 1px solid var(--workflow-border);
}

.config-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.config-section-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--workflow-text);
  margin: 0;
}

.config-section-hint {
  font-size: 0.8125rem;
  color: var(--workflow-text-muted);
  margin-top: -0.5rem;
}

.config-input,
.config-select,
.config-textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  background: var(--workflow-surface);
  border: 1px solid var(--workflow-border);
  border-radius: 6px;
  color: var(--workflow-text);
  font-size: 0.875rem;
  font-family: inherit;
  box-sizing: border-box;
  transition: all 0.15s ease;
}

.config-input:focus,
.config-select:focus,
.config-textarea:focus {
  outline: none;
  border-color: var(--workflow-primary);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.config-textarea {
  min-height: 80px;
  resize: vertical;
  font-family: 'Courier New', monospace;
}

.config-checkbox-group {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem;
  align-items: center;
}

.config-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--workflow-primary);
}

.config-radio-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

.config-radio {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem;
  align-items: center;
  padding: 0.5rem;
  border: 1px solid var(--workflow-border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.config-radio:hover {
  background: var(--workflow-surface);
  border-color: var(--workflow-border-hover);
}

.config-radio input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--workflow-primary);
}

.config-radio input[type="radio"]:checked + label {
  color: var(--workflow-primary);
  font-weight: 500;
}

.config-radio:has(input[type="radio"]:checked) {
  border-color: var(--workflow-primary);
  background: rgba(88, 166, 255, 0.1);
}

/* Column Selector for Joins */
.column-selector {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
}

.column-selector-label {
  font-size: 0.8125rem;
  color: var(--workflow-text-muted);
  text-align: center;
}

.column-select {
  padding: 0.625rem 0.75rem;
  background: var(--workflow-surface);
  border: 1px solid var(--workflow-border);
  border-radius: 6px;
  color: var(--workflow-text);
  font-size: 0.875rem;
  cursor: pointer;
}

.column-select:focus {
  outline: none;
  border-color: var(--workflow-primary);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.auto-suggest-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  background: rgba(88, 166, 255, 0.1);
  border: 1px solid var(--workflow-primary);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--workflow-primary);
  margin-left: 0.5rem;
}

/* ============================================
   FOOTER ACTIONS
   ============================================ */
.workflow-actions-bottom {
  grid-area: editor-footer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--workflow-border);
  background: var(--workflow-surface);
}

.workflow-undo-redo {
  display: grid;
  grid-auto-flow: column;
  gap: 0.5rem;
}

.workflow-execute-actions {
  display: grid;
  grid-auto-flow: column;
  gap: 0.5rem;
  justify-self: end;
}

/* ============================================
   ADD STEP BUTTON
   ============================================ */
.btn-add-step {
  margin: 1.5rem;
  padding: 1rem;
  background: var(--workflow-surface-elevated);
  border: 2px dashed var(--workflow-border);
  border-radius: 8px;
  color: var(--workflow-text);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-add-step:hover {
  border-color: var(--workflow-primary);
  background: var(--workflow-surface);
  color: var(--workflow-primary);
}

/* ============================================
   TOOL PICKER MODAL
   ============================================ */
.workflow-tool-picker {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  place-items: center;
  background: rgba(13, 17, 23, 0.8);
  backdrop-filter: blur(4px);
  z-index: 1000;
  padding: 2rem;
}

.tool-picker-dialog {
  display: grid;
  grid-template-rows: auto 1fr auto;
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  background: var(--workflow-surface);
  border: 1px solid var(--workflow-border);
  border-radius: 12px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.tool-picker-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--workflow-border);
}

.tool-picker-header h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--workflow-text);
}

.btn-close-picker {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: transparent;
  border: none;
  color: var(--workflow-text);
  font-size: 1.5rem;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.btn-close-picker:hover {
  background: var(--workflow-surface-elevated);
  color: var(--workflow-error);
}

.tool-picker-content {
  padding: 1.5rem;
  overflow-y: auto;
}

.tool-picker-category {
  margin-bottom: 2rem;
}

.tool-picker-category h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--workflow-text-muted);
  margin: 0 0 1rem 0;
}

.tool-picker-tools {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.tool-picker-item {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--workflow-surface-elevated);
  border: 1px solid var(--workflow-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
}

.tool-picker-item:hover {
  border-color: var(--workflow-primary);
  background: var(--workflow-surface);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.tool-picker-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.tool-picker-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--workflow-text);
}

.tool-picker-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--workflow-border);
  display: grid;
  grid-auto-flow: column;
  gap: 0.5rem;
  justify-content: end;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .workflow-list-view {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  
  .tool-picker-tools {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

@media (max-width: 768px) {
  .workflow-list-view {
    grid-template-columns: 1fr;
    padding: 1rem;
  }
  
  .workflow-builder-header {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .workflow-actions {
    justify-self: stretch;
    grid-template-columns: 1fr 1fr;
  }
  
  .column-selector {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  
  .workflow-actions-bottom {
    grid-template-columns: 1fr;
  }
}