/* ========================================================================
   PlacementHub AI Solutions — Enterprise Brand Design System v4
   Purple/Indigo identity with softened dark neutrals for SaaS polish
   ======================================================================== */

:root {
  /* ========================================================================
     PLACEMENTHUB BRAND PALETTE
     Primary Brand  #4F46E5  — CTAs, active nav, links, focus, badges
     Soft Dark      #222222 / #2F2F2F — surfaces that previously used pure black
     ======================================================================== */

  --color-primary:     #4F46E5;
  --color-primary-hover:#4338CA;
  --color-primary-soft:#EEF2FF;
  --color-secondary:   #6366F1;
  --color-accent:      #818CF8;
  --color-success:     #16A34A;
  --color-warning:     #D97706;
  --color-error:       #DC2626;

  /* Soft dark neutrals (replaces harsh black) */
  --bg-black:          #4F46E5; /* Primary CTAs & brand emphasis */
  --bg-dark:           #222222; /* Soft charcoal for logos / dark chips */
  --bg-dark-neutral:   #2F2F2F;
  --bg-dark-tile:      #2F2F2F;
  --bg-dark-hover:     #4338CA; /* Hover for primary actions */
  --border-dark-neutral:#3F3F46;
  --border-dark-tile:  #3F3F46;

  /* Surfaces */
  --bg-page:           #F8FAFC;
  --bg-surface:        #FFFFFF;
  --bg-muted:          #F1F5F9;
  --bg-accent:         #E2E8F0;

  /* Borders */
  --border-subtle:     #E2E8F0;
  --border-medium:     #CBD5E1;
  --border-strong:     #4F46E5;
  --border-dashed:     #94A3B8;

  /* Text */
  --text-primary:      #1E293B;
  --text-secondary:    #475569;
  --text-muted:        #64748B;
  --text-inverse:      #FFFFFF;
  --text-inverse-muted:#C7D2FE;
  --text-brand:        #4F46E5;

  --font-sans: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 48px;

  --radius-sm:   6px;
  --radius-md:   8px;
  --radius-lg:   10px;
  --radius-pill: 9999px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
.wf-main-content a:not(.wf-btn):not(.wf-sidebar-link):not(.wf-prompt-chip) {
  color: var(--text-brand);
}
.wf-main-content a:not(.wf-btn):not(.wf-sidebar-link):not(.wf-prompt-chip):hover {
  color: var(--color-primary-hover);
}

/* ========================================================================
   GLOBAL APP HEADER — Brand + Search + Status only. No nav links.
   ======================================================================== */
.wf-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 52px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  gap: var(--space-md);
}

.wf-nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.wf-logo-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  background-color: var(--color-primary);
  color: var(--text-inverse);
  padding: 4px 9px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
}

.wf-nav-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Global search in top nav */
.wf-nav-search {
  flex: 1;
  max-width: 360px;
}

.wf-nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.wf-kbd-shortcut {
  font-family: var(--font-mono);
  font-size: 10px;
  background-color: var(--bg-muted);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  color: var(--text-muted);
}

/* Status indicator — mutable states only */
.wf-status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
}

.wf-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-success);
  border: 1px solid color-mix(in srgb, var(--color-success) 40%, white);
  flex-shrink: 0;
}

/* ========================================================================
   LAYOUT SHELL
   ======================================================================== */
.app-shell {
  display: flex;
  min-height: calc(100vh - 52px);
}

/* Primary Sidebar */
.wf-sidebar {
  width: 248px;
  min-width: 248px;
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
  gap: var(--space-lg);
  overflow-y: auto;
}

.wf-sidebar-section { display: flex; flex-direction: column; gap: 6px; }

.wf-sidebar-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--text-muted);
  padding: 4px 10px 6px 10px;
}

.wf-sidebar-nav { display: flex; flex-direction: column; gap: 3px; list-style: none; }

.wf-sidebar-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  line-height: 1.4;
}

.wf-sidebar-link:hover { background-color: var(--color-primary-soft); color: var(--text-brand); }

.wf-sidebar-link.active {
  background-color: var(--color-primary-soft);
  color: var(--text-brand);
  font-weight: 600;
  border-left: 3px solid var(--color-primary);
}

.wf-list-item-active {
  padding: 10px 12px;
  background-color: var(--color-primary-soft);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.wf-list-item-active:hover {
  background-color: var(--bg-accent);
  border-color: var(--color-secondary);
}

/* Sidebar footer spec block — documentation only, not product UI */
.wf-sidebar-spec {
  margin-top: auto;
}

.wf-sidebar-spec summary {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  padding: 6px 8px;
  cursor: pointer;
  user-select: none;
  list-style: none;
}

.wf-sidebar-spec summary::-webkit-details-marker { display: none; }

.wf-spec-tree {
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.3;
  color: var(--text-muted);
  padding: 6px 8px;
  white-space: pre-wrap;
  border-top: 1px dashed var(--border-subtle);
}

/* Main Content Area */
.wf-main-content {
  flex: 1;
  padding: var(--space-xl) var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  overflow-x: hidden;
}

/* Page Header */
.wf-page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-subtle);
}

.wf-breadcrumb { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; line-height: 1.5; }

.wf-page-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 6px;
}

.wf-page-desc { font-size: 14px; color: var(--text-secondary); margin-top: 4px; line-height: 1.65; max-width: 720px; }

/* Inline status in page header — replaces hero cards */
.wf-page-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.wf-page-actions { display: flex; align-items: center; gap: var(--space-sm); }

/* Secondary Sidebar */
.wf-secondary-sidebar {
  background-color: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Grid Layout Utilities */
.wf-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

/* Split Pane Layouts */
.wf-split-pane        { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.wf-split-pane-30-70  { display: grid; grid-template-columns: 340px 1fr; gap: var(--space-xl); }
.wf-split-pane-70-30  { display: grid; grid-template-columns: 1fr 340px; gap: var(--space-xl); }

@media (max-width: 1024px) {
  .wf-split-pane-30-70,
  .wf-split-pane-70-30 {
    grid-template-columns: 1fr;
  }
}

/* ========================================================================
   COMPONENTS
   ======================================================================== */

/* Card */
.wf-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.wf-card-header {
  padding: 16px var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.wf-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.2px;
  line-height: 1.35;
}

.wf-card-desc { font-size: 13px; color: var(--text-muted); margin-top: 4px; line-height: 1.5; }

.wf-card-body { padding: var(--space-lg); flex: 1; }

.wf-card-footer {
  padding: var(--space-md) var(--space-lg);
  background-color: var(--bg-muted);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

/* KPI Grid */
.wf-kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-lg); }

.wf-kpi-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 18px var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--shadow-sm);
}

.wf-kpi-header { display: flex; align-items: center; justify-content: space-between; }

.wf-kpi-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.55px;
  color: var(--text-muted);
}

.wf-kpi-value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: var(--text-primary);
  line-height: 1.2;
}

.wf-kpi-subtext { font-size: 12px; color: var(--text-muted); line-height: 1.45; }

/* ========================================================================
   STANDARDIZED TWO-TIER TOOLBAR
   Row 1: [Search] [Selects] | [Primary] [Overflow]
   Row 2: active filter chips
   ======================================================================== */
.wf-toolbar {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.wf-toolbar-row {
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.wf-toolbar-row + .wf-toolbar-row {
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-muted);
  padding: 6px 12px;
}

.wf-toolbar-group { display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap; }

/* Active filter chips (Row 2) */
.wf-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 24px;
  padding: 0 8px;
  font-size: 11px;
  font-weight: 500;
  background-color: var(--bg-accent);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-pill);
  color: var(--text-primary);
}

.wf-filter-chip-remove {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  margin-left: 2px;
}

/* Contextual bulk-action toolbar (replaces filter row when rows are selected) */
.wf-bulk-toolbar {
  background-color: var(--bg-dark-tile);
  color: var(--text-inverse);
  border: 1px solid var(--border-dark-tile);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.wf-bulk-toolbar-count {
  font-size: 12px;
  font-weight: 600;
  flex: 1;
}

.wf-bulk-toolbar .wf-btn {
  height: 28px;
  padding: 0 10px;
  font-size: 11px;
  background-color: transparent;
  border-color: rgba(255,255,255,0.3);
  color: var(--text-inverse);
}

.wf-bulk-toolbar .wf-btn:hover { background-color: rgba(255,255,255,0.1); }

/* Form Controls */
.wf-input {
  height: 36px;
  padding: 0 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  outline: none;
  width: 100%;
}

.wf-input:focus {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary-soft);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.wf-select {
  height: 36px;
  padding: 0 28px 0 10px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%2371717a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.wf-textarea {
  padding: 10px 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  outline: none;
  resize: vertical;
  min-height: 72px;
  width: 100%;
}

.wf-textarea:focus { border-color: var(--border-strong); }

/* Buttons */
.wf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  padding: 0 14px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
}

.wf-btn:hover { background-color: var(--bg-muted); }

.wf-btn-primary {
  background-color: var(--color-primary);
  color: var(--text-inverse);
  border-color: var(--color-primary);
}

.wf-btn-primary:hover { background-color: var(--color-primary-hover); border-color: var(--color-primary-hover); }

.wf-btn-sm { height: 30px; padding: 0 12px; font-size: 12px; }
.wf-btn-xs { height: 24px; padding: 0 9px; font-size: 11px; }

.wf-btn-ghost { border-color: transparent; background-color: transparent; }
.wf-btn-ghost:hover { background-color: var(--bg-muted); }

/* Overflow menu anchor */
.wf-btn-overflow {
  height: 36px;
  width: 36px;
  padding: 0;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

/* Badges — mutable status only */
.wf-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  background-color: var(--bg-accent);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  white-space: nowrap;
}

.wf-badge-dark {
  background-color: var(--color-primary-soft);
  color: var(--text-brand);
  border: 1px solid color-mix(in srgb, var(--color-primary) 25%, white);
}

.wf-badge-outline {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: var(--border-medium);
}

.wf-badge-pill { border-radius: var(--radius-pill); }

.wf-badge-success {
  background-color: #DCFCE7;
  color: var(--color-success);
  border-color: #BBF7D0;
}

.wf-badge-warning {
  background-color: #FEF3C7;
  color: var(--color-warning);
  border-color: #FDE68A;
}

.wf-badge-error {
  background-color: #FEE2E2;
  color: var(--color-error);
  border-color: #FECACA;
}

/* Prompt chips */
.wf-prompt-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1.4;
}

.wf-prompt-chip:hover {
  background-color: var(--color-primary-soft);
  color: var(--text-brand);
  border-color: var(--color-secondary);
}

/* Tabs */
.wf-tabs-header {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-md);
}

.wf-tab {
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.wf-tab.active {
  color: var(--text-brand);
  font-weight: 700;
  border-bottom-color: var(--color-primary);
}

/* Table */
.wf-table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
}

.wf-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 13px; }

.wf-table th {
  background-color: var(--bg-muted);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.55px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.wf-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  vertical-align: middle;
}

.wf-table tr:last-child td { border-bottom: none; }
.wf-table tr:hover td { background-color: var(--bg-page); }

/* Row-hover action cell (hidden by default, visible on row hover) */
.wf-table tr .wf-row-actions {
  opacity: 0;
  transition: opacity 0.1s;
}

.wf-table tr:hover .wf-row-actions { opacity: 1; }

/* ========================================================================
   AI STATE PLACEHOLDERS — Empty / Loading / Zero-Result
   ======================================================================== */

/* Empty state */
.wf-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-md);
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  background-color: var(--bg-page);
  text-align: center;
}

.wf-empty-state-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.wf-empty-state-desc { font-size: 12px; color: var(--text-muted); max-width: 280px; line-height: 1.4; }

/* Skeleton loading row */
.wf-skeleton {
  height: 12px;
  border-radius: var(--radius-sm);
  background: repeating-linear-gradient(90deg, var(--bg-muted) 0px, var(--bg-accent) 40%, var(--bg-muted) 80%);
  background-size: 300px 100%;
  display: block;
}

/* Zero-result relaxation banner */
.wf-zero-result-banner {
  padding: var(--space-md);
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-md);
  background-color: var(--bg-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  font-size: 12px;
  color: var(--text-secondary);
}

/* Editable filter chip (POC3 NLP extraction banner) */
.wf-editable-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  cursor: pointer;
}

.wf-editable-chip-label { font-size: 9px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; }

.wf-editable-chip:hover { background-color: var(--bg-accent); }

/* ========================================================================
   DRAWERS & MODALS
   ======================================================================== */
.wf-drawer-sheet {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.wf-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-md);
  border-bottom: 1px dashed var(--border-medium);
}

.wf-drawer-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  background-color: var(--bg-muted);
  border: 1px solid var(--border-medium);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-transform: uppercase;
}

.wf-modal-dialog {
  background-color: var(--bg-surface);
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ========================================================================
   DROPZONE
   ======================================================================== */
.wf-dropzone-prominent {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background-color: var(--bg-muted);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.wf-dropzone-prominent:hover { background-color: var(--bg-accent); }

/* ========================================================================
   CHARTS
   ======================================================================== */
.wf-chart-container {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: var(--bg-page);
  padding: var(--space-md);
  height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-sm);
}

.wf-chart-bars {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 140px;
  padding-top: var(--space-md);
  border-bottom: 1px solid var(--border-medium);
}

.wf-chart-bar-group { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 1; }

.wf-chart-bar { width: 24px; background-color: var(--color-primary); border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.wf-chart-bar.secondary { background-color: var(--bg-accent); border: 1px solid var(--border-medium); }

.wf-chart-label { font-size: 10px; font-family: var(--font-mono); color: var(--text-muted); }

/* ========================================================================
   REPORTS MODULE — Enterprise demo charts (#report-demo-chart)
   Scoped so dashboard / POC chart widgets keep their original styling.
   ======================================================================== */
#report-demo-chart.wf-chart-container {
  --chart-pad-top: 40px;
  --chart-pad-bottom: 56px;
  --chart-pad-left: 50px;
  --chart-pad-right: 30px;
  --chart-value-band: 22px;
  --chart-cat-band: 52px;
  --chart-label-gap: 10px;
  --chart-plot-min: 280px;

  height: auto;
  min-height: 380px;
  padding: 14px 12px 12px;
  justify-content: center;
  align-items: stretch;
  gap: 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8f9fc 100%);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.wf-report-chart {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  width: 100%;
  height: 100%;
  min-height: 360px;
  box-sizing: border-box;
  overflow: hidden;
}

.wf-report-chart-title {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.35;
  padding: 0 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.wf-report-chart-plot {
  display: grid;
  grid-template-columns: var(--chart-pad-left) minmax(0, 1fr);
  column-gap: 0;
  align-items: stretch;
  flex: 1 1 auto;
  min-height: calc(var(--chart-plot-min) + var(--chart-value-band) + var(--chart-cat-band) + (var(--chart-label-gap) * 2));
  padding-right: var(--chart-pad-right);
  box-sizing: border-box;
  overflow: hidden;
}

.wf-report-chart-yaxis {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-end;
  box-sizing: border-box;
  width: 100%;
  padding:
    calc(var(--chart-value-band) + var(--chart-label-gap))
    8px
    calc(var(--chart-cat-band) + var(--chart-label-gap))
    0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  color: var(--text-muted);
  user-select: none;
  overflow: hidden;
}

.wf-report-chart-canvas {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

.wf-report-chart-grid {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--chart-value-band) + var(--chart-label-gap));
  bottom: calc(var(--chart-cat-band) + var(--chart-label-gap));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
  z-index: 0;
}

.wf-report-chart-grid span {
  display: block;
  width: 100%;
  height: 0;
  border-top: 1px solid rgba(79, 70, 229, 0.08);
}

.wf-report-chart-grid span:last-child {
  border-top-color: var(--border-medium);
}

.wf-report-chart-bars {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: stretch;
  justify-content: space-evenly;
  gap: clamp(10px, 2.2vw, 18px);
  flex: 1 1 auto;
  height: 100%;
  min-height: calc(var(--chart-plot-min) + var(--chart-value-band) + var(--chart-cat-band) + (var(--chart-label-gap) * 2));
  padding: 0;
  border-bottom: none;
  box-sizing: border-box;
  overflow: hidden;
}

.wf-report-chart-col {
  display: grid;
  grid-template-rows:
    var(--chart-value-band)
    var(--chart-label-gap)
    minmax(var(--chart-plot-min), 1fr)
    var(--chart-label-gap)
    var(--chart-cat-band);
  align-items: stretch;
  justify-items: center;
  flex: 1 1 0;
  min-width: 0;
  max-width: 110px;
  height: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.wf-report-chart-value {
  grid-row: 1;
  align-self: end;
  justify-self: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 0;
  padding: 0;
}

.wf-report-chart-bar-track {
  grid-row: 3;
  width: 100%;
  height: 100%;
  min-height: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.wf-report-chart-bar {
  width: clamp(30px, 4vw, 40px);
  height: 0;
  border-radius: 6px 6px 2px 2px;
  transform-origin: bottom center;
  transition: filter 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
  animation: wf-report-bar-rise 600ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.wf-report-chart-bar--tier1 { background: linear-gradient(180deg, #6366F1 0%, #4F46E5 100%); }
.wf-report-chart-bar--tier2 { background: linear-gradient(180deg, #818CF8 0%, #6366F1 100%); }
.wf-report-chart-bar--tier3 { background: linear-gradient(180deg, #BFDBFE 0%, #93C5FD 100%); }
.wf-report-chart-bar--tier4 { background: linear-gradient(180deg, #E2E8F0 0%, #CBD5E1 100%); }

.wf-report-chart-bar:hover {
  filter: brightness(1.12);
  transform: translateY(-3px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 6px 14px rgba(79, 70, 229, 0.22);
}

.wf-report-chart-cat {
  grid-row: 5;
  align-self: start;
  justify-self: center;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 2px 2px 0;
  box-sizing: border-box;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-sans);
  color: var(--text-primary);
  letter-spacing: 0.01em;
  line-height: 1.25;
  text-align: center;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.wf-report-chart-cat .wf-report-chart-cat-line {
  display: block;
}

@keyframes wf-report-bar-rise {
  from {
    height: 0;
    opacity: 0.55;
  }
  to {
    height: var(--bar-h);
    opacity: 1;
  }
}

@media (max-width: 900px) {
  #report-demo-chart.wf-chart-container {
    --chart-pad-left: 44px;
    --chart-pad-right: 20px;
    --chart-cat-band: 50px;
    --chart-plot-min: 250px;
    min-height: 350px;
  }

  .wf-report-chart-cat { font-size: 10.5px; }
}

@media (max-width: 720px) {
  #report-demo-chart.wf-chart-container {
    --chart-pad-top: 36px;
    --chart-pad-bottom: 52px;
    --chart-pad-left: 36px;
    --chart-pad-right: 14px;
    --chart-plot-min: 220px;
    --chart-cat-band: 48px;
    min-height: 320px;
  }

  .wf-report-chart { min-height: 300px; }
  .wf-report-chart-value { font-size: 10px; }
  .wf-report-chart-cat { font-size: 10px; }
  .wf-report-chart-yaxis { font-size: 10px; }
  .wf-report-chart-bar { width: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  .wf-report-chart-bar {
    animation: none;
    height: var(--bar-h);
    opacity: 1;
  }
}

/* ========================================================================
   PROMINENT 6-STAGE TIMELINE (Career Coach Primary Element)
   ======================================================================== */
.wf-timeline-prominent {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 8px;
  overflow-x: auto;
}

.wf-timeline-step-prominent {
  flex: 1;
  min-width: 130px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text-muted);
  transition: all 0.15s ease;
}

.wf-timeline-step-prominent.completed {
  background-color: var(--bg-muted);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-left: 3px solid var(--border-strong);
}

.wf-timeline-step-prominent.completed:hover {
  background-color: var(--bg-accent);
  border-color: var(--border-strong);
}

.wf-timeline-step-prominent.active {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 2px solid var(--border-strong);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.wf-timeline-step-prominent.active .wf-timeline-step-badge {
  background-color: var(--bg-black);
  color: var(--text-inverse);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  display: inline-block;
  width: fit-content;
}

.wf-timeline-step-badge { font-family: var(--font-mono); font-size: 9px; font-weight: 700; letter-spacing: 0.5px; }
.wf-timeline-step-title { font-size: 12px; font-weight: 700; color: var(--text-primary); }

/* Mini stepper for page sub-header (Career Coach) */
.wf-mini-stepper {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
}

.wf-mini-step {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--border-medium);
  background-color: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  flex-shrink: 0;
}

.wf-mini-step.done { background-color: var(--bg-dark-tile); color: var(--text-inverse); border-color: var(--border-dark-tile); }
.wf-mini-step.active { background-color: var(--bg-accent); border-color: var(--border-strong); color: var(--text-primary); }

.wf-mini-step-connector { flex: 1; height: 1px; background-color: var(--border-medium); }

/* ========================================================================
   PROGRESS BARS
   ======================================================================== */
.wf-progress-track {
  height: 8px;
  width: 100%;
  background-color: var(--bg-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.wf-progress-fill { height: 100%; background-color: var(--color-primary); }

/* ========================================================================
   CHAT / COPILOT
   ======================================================================== */
.wf-chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 10px;
}

.wf-chat-messages {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  overflow-y: auto;
  padding: var(--space-md);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
}

.wf-chat-bubble {
  max-width: 82%;
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  font-size: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.wf-chat-bubble-user { align-self: flex-end; background-color: var(--bg-dark-tile); color: var(--text-inverse); border: 1px solid var(--border-dark-tile); border-bottom-right-radius: 2px; }
.wf-chat-bubble-ai { align-self: flex-start; background-color: var(--bg-muted); color: var(--text-primary); border: 1px solid var(--border-subtle); border-bottom-left-radius: 2px; }

.wf-chat-meta { font-size: 10px; font-family: var(--font-mono); font-weight: 700; opacity: 0.7; }

/* Tool-call card inside AI turns */
.wf-tool-call-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 4px 0;
}

.wf-tool-call-header {
  padding: 6px 10px;
  background-color: var(--bg-muted);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-secondary);
}

.wf-tool-call-body { padding: 8px 10px; font-size: 11px; display: flex; flex-direction: column; gap: 4px; }

.wf-tool-call-footer {
  padding: 6px 10px;
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-page);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Inline action button inside AI turns */
.wf-inline-action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background-color: var(--bg-dark);
  color: var(--text-inverse);
  cursor: pointer;
  margin-top: 4px;
}

/* Collapsible context rail (POC4 right column) */
.wf-context-rail {
  background-color: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  transition: width 0.2s;
}

.wf-context-rail.collapsed { width: 48px; min-width: 48px; }
.wf-context-rail.expanded { width: 260px; min-width: 260px; }

.wf-context-rail-toggle {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
}

/* ========================================================================
   GRID UTILITIES
   ======================================================================== */
.wf-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.wf-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.wf-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }

/* ========================================================================
   SKILL GAP TABLE (Career Coach)
   ======================================================================== */
.wf-skill-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.wf-skill-table th { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-muted); padding: 8px 12px; border-bottom: 1px solid var(--border-subtle); background-color: var(--bg-muted); text-align: left; }
.wf-skill-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-subtle); vertical-align: middle; }
.wf-skill-table tr:last-child td { border-bottom: none; }
.wf-skill-table tr:hover td { background-color: var(--bg-page); }

/* Week grid (Career Coach planner) */
.wf-week-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.wf-week-day {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background-color: var(--bg-surface);
  min-height: 80px;
}

.wf-week-day.today { border-color: var(--border-strong); border-width: 2px; background-color: var(--bg-accent); }
.wf-week-day.done { background-color: var(--bg-muted); }

.wf-week-day-label { font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); }
.wf-week-day-task { font-size: 10px; padding: 3px 6px; background-color: var(--bg-accent); border-radius: var(--radius-sm); border: 1px solid var(--border-medium); line-height: 1.3; }
.wf-week-day.today .wf-week-day-task { background-color: var(--bg-dark-tile); color: var(--text-inverse); border-color: var(--border-dark-tile); }

/* ========================================================================
   FOOTER
   ======================================================================== */
.wf-doc-footer {
  margin-top: var(--space-xl);
  padding: var(--space-md);
  border-top: 1px dashed var(--border-medium);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  background-color: var(--bg-surface);
}

@media (max-width: 900px) {
  .app-shell { flex-direction: column; }
  .wf-sidebar { width: 100%; min-width: 100%; }
  .wf-split-pane, .wf-split-pane-30-70, .wf-split-pane-70-30 { grid-template-columns: 1fr; }
  .wf-grid-2, .wf-grid-3, .wf-grid-4 { grid-template-columns: 1fr; }
  .wf-week-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ========================================================================
   INTERACTIVE COMPONENT SYSTEM EXTENSIONS
   Toasts, Modal Backdrop, Cmd+K Palette, Loading Overlays, Drawer Transitions
   ======================================================================== */

/* Toast Container & Cards */
.wf-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.wf-toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 420px;
  padding: 12px 16px;
  background-color: var(--bg-dark-tile);
  color: var(--text-inverse);
  border: 1px solid var(--border-dark-tile);
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
  animation: wf-toast-in 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  transition: all 0.2s ease;
}

.wf-toast-hiding {
  opacity: 0;
  transform: translateY(10px) scale(0.95);
}

.wf-toast-icon {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  flex-shrink: 0;
}

.wf-toast-message { flex: 1; line-height: 1.4; }

.wf-toast-close {
  background: none;
  border: none;
  color: var(--text-inverse-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
}

.wf-toast-close:hover { color: var(--text-inverse); }

@keyframes wf-toast-in {
  from { opacity: 0; transform: translateY(16px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Modal Backdrop & Visible State */
.wf-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(9, 9, 11, 0.6);
  backdrop-filter: blur(2px);
  z-index: 9000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.wf-backdrop-visible {
  opacity: 1;
  pointer-events: auto;
}

.wf-modal-dialog {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -48%) scale(0.96);
  z-index: 9500;
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
  opacity: 0;
}

.wf-modal-dialog.wf-modal-visible {
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* Command Palette (⌘K) Dialog */
.wf-cmd-k-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.3);
}

.wf-cmd-k-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.wf-cmd-k-input {
  width: 100%;
  border: none;
  outline: none;
  font-size: 14px;
  font-family: var(--font-sans);
  background: transparent;
  color: var(--text-primary);
}

.wf-cmd-k-results {
  max-height: 320px;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.wf-cmd-k-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  padding: 6px 8px 4px 8px;
}

.wf-cmd-k-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-primary);
  text-decoration: none;
  transition: background 0.1s ease;
}

.wf-cmd-k-item:hover, .wf-cmd-k-item:focus {
  background-color: var(--bg-muted);
}

.wf-cmd-k-footer {
  padding: 8px 16px;
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-page);
  font-size: 11px;
  color: var(--text-muted);
}

.wf-cmd-k-footer kbd {
  font-family: var(--font-mono);
  font-size: 10px;
  background-color: var(--bg-accent);
  border: 1px solid var(--border-medium);
  border-radius: 3px;
  padding: 1px 4px;
}

/* Right Drawer Visiblity & Slide Animation */
.wf-drawer-sheet {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.wf-drawer-visible {
  display: flex !important;
  transform: translateX(0) !important;
}

/* Loading Overlay */
.wf-loading-overlay {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(1px);
  z-index: 8000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.wf-overlay-visible {
  opacity: 1;
  pointer-events: auto;
}

.wf-loading-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-medium);
  border-top-color: var(--bg-black);
  border-radius: 50%;
  animation: wf-spin 0.6s linear infinite;
}

.wf-loading-text {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

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

/* Pulse animation for skeletons */
.wf-skeleton {
  background: linear-gradient(90deg, var(--bg-muted) 25%, var(--bg-accent) 50%, var(--bg-muted) 75%);
  background-size: 200% 100%;
  animation: wf-skeleton-pulse 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes wf-skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}