/* ==========================================================================
   O'Brien360 Brand Design System & Tokens
   Following: OB360 Content Style Guide
   ========================================================================== */

:root {
  /* O'Brien360 Typography Hierarchy */
  --font-heading: 'Yu Gothic', 'Raleway', 'Lato', 'Segoe UI', -apple-system, sans-serif;
  --font-body: 'Yu Gothic', 'Calibri', 'Inter', 'Segoe UI', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;

  /* O'Brien360 Official Brand Palette */
  --ob360-green: #8CBD3A;       /* Pantone 368 C - Signature Green & Accent Bar */
  --ob360-teal: #62B8A4;        /* Pantone 3258 C - Teal / Sea Green */
  --ob360-sage: #66A154;        /* Pantone 7489 C - Sage Green */
  --ob360-slate-blue: #4D76AD;  /* Pantone 7685 C - Slate Blue / Heading 2 */
  --ob360-blue: #007AC9;        /* Pantone 2144 C - Hyperlink & Title Blue */
  --ob360-aubergine: #793E6D;   /* Pantone 2613 C - Aubergine / Heading 1 */
  --ob360-marine: #507281;      /* Pantone 2222 C - Marine Slate */
  --ob360-purple: #483662;      /* Pantone 2118 C - Deep Purple / Footers / Heading 3 */
  --ob360-black: #222222;       /* Black C - Charcoal */

  /* O'Brien360 Official Tinted Palette */
  --ob360-tint-green: #CBE5A9;
  --ob360-tint-teal: #CBEDEA;
  --ob360-tint-sage: #CBE4CA;
  --ob360-tint-slate: #CBDFF4;
  --ob360-tint-blue: #CBE3F5;
  --ob360-tint-aubergine: #CBA4D0;
  --ob360-tint-marine: #CBE2EB;
  --ob360-tint-purple: #CBD1E8;
  --ob360-tint-gray: #EAEAEA;

  /* Radius (O'Brien360 standard rounded corners) */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme (O'Brien360 Corporate Standard) */
body.light-theme {
  --bg-app: #F6F8FA;
  --bg-card: #FFFFFF;
  --bg-surface: #F0F4F8;
  --bg-surface-hover: #E3ECF4;
  --bg-input: #FFFFFF;

  --border-color: #D6E0EA;
  --border-subtle: #E8EEF3;
  --border-focus: var(--ob360-blue);

  --text-primary: #1C242C;
  --text-secondary: #4F6173;
  --text-muted: #7E90A2;
  --text-heading: var(--ob360-purple);

  --accent-primary: var(--ob360-green);
  --accent-secondary: var(--ob360-blue);
  --accent-highlight: var(--ob360-aubergine);

  --card-shadow: 0 4px 16px rgba(30, 45, 60, 0.06), 0 1px 3px rgba(30, 45, 60, 0.04);
  --header-bg: rgba(255, 255, 255, 0.96);
}

/* Dark Theme */
body.dark-theme {
  --bg-app: #0F141C;
  --bg-card: #161D26;
  --bg-surface: #1E2835;
  --bg-surface-hover: #273444;
  --bg-input: #121820;

  --border-color: #2D3A4B;
  --border-subtle: #202A36;
  --border-focus: var(--ob360-green);

  --text-primary: #F0F4F8;
  --text-secondary: #A0B0C0;
  --text-muted: #6C7D8E;
  --text-heading: #FFFFFF;

  --accent-primary: var(--ob360-green);
  --accent-secondary: var(--ob360-teal);
  --accent-highlight: var(--ob360-blue);

  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.05);
  --header-bg: rgba(22, 29, 38, 0.95);
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 40px;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Top Signature O'Brien360 Multi-Color Accent Stripe */
.brand-stripe {
  height: 5px;
  width: 100%;
  background: linear-gradient(
    90deg,
    var(--ob360-green) 0%,
    var(--ob360-green) 20%,
    var(--ob360-teal) 20%,
    var(--ob360-teal) 40%,
    var(--ob360-slate-blue) 40%,
    var(--ob360-slate-blue) 60%,
    var(--ob360-aubergine) 60%,
    var(--ob360-aubergine) 80%,
    var(--ob360-purple) 80%,
    var(--ob360-purple) 100%
  );
}

.app-container {
  max-width: 1380px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ==========================================================================
   Header (O'Brien360 Brand)
   ========================================================================== */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo-wrapper {
  display: flex;
  align-items: center;
}

.brand-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.brand-divider {
  width: 1px;
  height: 44px;
  background: var(--border-color);
}

.title-meta {
  display: flex;
  flex-direction: column;
}

.header-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.01em;
}

.header-subtitle {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 1px;
}

.header-tagline {
  font-size: 0.76rem;
  color: var(--ob360-green);
  font-style: italic;
  font-weight: 600;
  margin-top: 2px;
  letter-spacing: 0.02em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-chip.online .status-dot {
  background-color: var(--ob360-green);
  box-shadow: 0 0 6px var(--ob360-green);
}

.status-chip.offline .status-dot {
  background-color: var(--ob360-blue);
}

/* ==========================================================================
   Cards & Layout Components
   ========================================================================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--card-shadow);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  gap: 16px;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-title-group h2 {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-heading);
}

.card-step-badge {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--ob360-green);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.76rem;
  font-weight: 700;
}

.quick-tips {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.quick-tips strong {
  color: var(--ob360-purple);
}

body.dark-theme .quick-tips strong {
  color: var(--ob360-teal);
}

/* ==========================================================================
   3-Method Results Ingestion Section
   ========================================================================== */

.ingestion-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  background: var(--bg-surface);
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.tab-btn {
  flex: 1;
  min-width: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.tab-btn.active {
  background: var(--card-bg);
  color: var(--ob360-purple);
  border-color: var(--border-color);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

body.dark-theme .tab-btn.active {
  color: var(--ob360-teal);
  background: var(--bg-surface);
}

.tab-num {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.76rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.tab-btn.active .tab-num {
  background: var(--ob360-green);
  color: #FFFFFF;
}

.tab-pane {
  display: block;
}

.tab-pane.hidden {
  display: none !important;
}

/* Drop Boxes */
.source-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.drop-box {
  border: 2px dashed var(--border-color);
  background: var(--bg-surface);
  text-align: center;
  cursor: pointer;
  padding: 28px 20px;
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.drop-box:hover, .drop-box.dragover {
  border-color: var(--ob360-green);
  background-color: var(--bg-surface-hover);
}

.drop-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.drop-icon {
  color: var(--ob360-green);
}

.drop-text {
  font-size: 0.92rem;
  color: var(--text-primary);
}

.drop-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.hidden-file-input {
  display: none;
}

/* Status Banner */
.source-status-info {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--ob360-tint-teal);
  border: 1px solid #7AD0BE;
  color: #0E5948;
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

body.dark-theme .source-status-info {
  background: rgba(98, 184, 164, 0.15);
  border-color: rgba(98, 184, 164, 0.4);
  color: #7AD0BE;
}

.source-status-info.error {
  background: #FEE2E2;
  border-color: #F87171;
  color: #991B1B;
}

/* Method 3: Append Workflow Box */
.append-workflow-box {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.append-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: 14px;
}

@media (max-width: 800px) {
  .append-grid {
    grid-template-columns: 1fr;
  }
  .append-plus-col {
    margin: -4px auto;
  }
}

.append-slot {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.slot-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.slot-badge {
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--ob360-slate-blue);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.slot-header h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-heading);
  margin: 0;
}

.slot-drop-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 18px 14px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  transition: border-color var(--transition-fast);
}

.slot-drop-area.dragover {
  border-color: var(--ob360-green);
  background: var(--bg-surface-hover);
}

.slot-drop-area.has-file {
  border-style: solid;
  border-color: var(--ob360-green);
  background: var(--ob360-tint-green);
}

body.dark-theme .slot-drop-area.has-file {
  background: rgba(140, 189, 58, 0.12);
}

.slot-icon {
  font-size: 1.6rem;
}

.slot-label {
  font-size: 0.84rem;
  color: var(--text-secondary);
  word-break: break-all;
}

.slot-drop-area.has-file .slot-label {
  color: var(--text-primary);
  font-weight: 600;
}

.slot-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 4px;
}

.append-plus-col {
  display: flex;
  align-items: center;
  justify-content: center;
}

.append-plus-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--ob360-green);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(140, 189, 58, 0.35);
}

.append-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  flex-wrap: wrap;
}

.append-fields {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.field-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.text-input-sm {
  width: 110px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-primary);
  outline: none;
}

.text-input-sm:focus {
  border-color: var(--border-focus);
}

/* Scenarios Pill Badges List */
.scenarios-container {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scenarios-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
}

.scenarios-summary {
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge {
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 700;
}

.badge-accent {
  background: var(--ob360-tint-green);
  color: #2D5A12;
  border: 1px solid #A4D178;
}

body.dark-theme .badge-accent {
  background: rgba(140, 189, 58, 0.2);
  color: var(--ob360-green);
  border-color: rgba(140, 189, 58, 0.4);
}

.badge-primary {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.scenarios-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.scenario-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.scenario-pill:hover {
  border-color: var(--ob360-green);
  background: var(--bg-surface-hover);
}

.scenario-pill.active {
  background: var(--ob360-tint-green);
  border-color: var(--ob360-green);
  color: #1F3F0D;
  font-weight: 700;
}

body.dark-theme .scenario-pill.active {
  background: rgba(140, 189, 58, 0.18);
  border-color: var(--ob360-green);
  color: var(--ob360-green);
}

.scenario-pill .pill-check {
  display: inline-flex;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1.5px solid var(--text-muted);
  align-items: center;
  justify-content: center;
  font-size: 10px;
}

.scenario-pill.active .pill-check {
  border-color: var(--ob360-green);
  background: var(--ob360-green);
  color: #FFFFFF;
}

/* Baseline Average Pill Style */
.scenario-pill.pill-avg {
  border-color: #4D76AD;
  background: rgba(77, 118, 173, 0.05);
}

.scenario-pill.pill-avg:hover {
  border-color: #385E92;
  background: rgba(77, 118, 173, 0.12);
}

.scenario-pill.pill-avg.active {
  background: rgba(77, 118, 173, 0.15);
  border-color: #4D76AD;
  color: #213A5C;
  font-weight: 700;
}

.scenario-pill.pill-avg.active .pill-check {
  border-color: #4D76AD;
  background: #4D76AD;
  color: #FFFFFF;
}

body.dark-theme .scenario-pill.pill-avg {
  border-color: #4D76AD;
  background: rgba(77, 118, 173, 0.1);
}

body.dark-theme .scenario-pill.pill-avg.active {
  background: rgba(77, 118, 173, 0.28);
  border-color: #6C97D1;
  color: #B5D2FC;
}

body.dark-theme .scenario-pill.pill-avg.active .pill-check {
  border-color: #6C97D1;
  background: #4D76AD;
}

.pill-tag {
  display: inline-block;
  padding: 1px 6px;
  font-size: 0.68rem;
  font-family: var(--font-body);
  border-radius: var(--radius-full);
  background: #4D76AD;
  color: #FFFFFF;
  font-weight: 700;
  margin-left: 2px;
  letter-spacing: 0.02em;
}

.avg-checkbox-label {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.84rem;
  cursor: pointer;
  user-select: none;
}

.avg-checkbox-label .avg-label-text {
  color: var(--ob360-slate-blue);
  font-weight: 700;
}

body.dark-theme .avg-checkbox-label .avg-label-text {
  color: #7CA8E8;
}

/* ==========================================================================
   Buttons & Controls (O'Brien360 Style)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 15px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--ob360-green);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(140, 189, 58, 0.3);
}

.btn-primary:hover {
  background: #7AA830;
  box-shadow: 0 4px 12px rgba(140, 189, 58, 0.4);
}

.btn-secondary {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

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

.btn-accent {
  background: var(--ob360-purple);
  color: #FFFFFF;
}

.btn-accent:hover {
  background: #392B4F;
}

.btn-highlight {
  box-shadow: 0 2px 10px rgba(72, 54, 98, 0.25);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: var(--bg-surface-hover);
  border-color: var(--ob360-slate-blue);
}

.btn-sm {
  padding: 5px 11px;
  font-size: 0.78rem;
}

.btn-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color var(--transition-fast);
}

.btn-icon:hover {
  background: var(--bg-surface-hover);
  border-color: var(--ob360-green);
}

.btn-link {
  background: none;
  border: none;
  color: var(--ob360-blue);
  font-size: 0.8rem;
  cursor: pointer;
  text-decoration: underline;
}

.btn-link:hover {
  color: var(--ob360-purple);
}

/* Segmented Controls */
.segmented-control {
  display: inline-flex;
  background: var(--bg-surface);
  padding: 3px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.seg-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.seg-btn:hover {
  color: var(--text-primary);
}

.seg-btn.active {
  background: #FFFFFF;
  color: var(--ob360-purple);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  font-weight: 700;
}

body.dark-theme .seg-btn.active {
  background: var(--bg-surface-hover);
  color: var(--ob360-green);
}

/* Dropdowns */
.select-dropdown {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 7px 11px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.82rem;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.select-dropdown:focus {
  border-color: var(--border-focus);
}

/* ==========================================================================
   Dashboard Toolbar & Options Strip
   ========================================================================== */
.controls-card {
  padding: 16px 20px;
}

.controls-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.control-label {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.options-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 12px;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.custom-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.custom-checkbox input {
  accent-color: var(--ob360-green);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

/* Category Filter Popover */
.category-filter-wrapper {
  position: relative;
}

.category-popover {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 310px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  box-shadow: var(--card-shadow);
  z-index: 100;
  max-height: 380px;
  overflow-y: auto;
}

.popover-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
}

.category-checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ==========================================================================
   Metrics Grid Cards
   ========================================================================== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}

.scenario-areas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.scenario-area-row {
  display: grid;
  grid-template-columns: minmax(90px, 1fr) 1fr 1fr;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.scenario-area-name {
  font-weight: 700;
  color: var(--text-heading);
}

.scenario-area-field label {
  display: block;
  font-size: 0.68rem;
  color: var(--text-muted);
}

.scenario-area-field input {
  width: 100%;
  min-width: 0;
  padding: 5px 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-primary);
}

.unmapped-warning {
  margin-top: 12px;
  padding: 16px 18px;
  border: 3px solid #C0392B;
  background: #FDECEC;
  color: #8E2118;
  font-size: 1.05rem;
  font-weight: 800;
}

body.dark-theme .unmapped-warning {
  background: #3A1E22;
  color: #FFB4B0;
}

.metric-card {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  border-left: 4px solid var(--ob360-green);
}

.metric-card:nth-child(2) {
  border-left-color: var(--ob360-slate-blue);
}

.metric-card:nth-child(3) {
  border-left-color: var(--ob360-aubergine);
}

.metric-card:nth-child(4) {
  border-left-color: var(--ob360-teal);
}

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

.metric-label {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}

.metric-icon {
  font-size: 1.1rem;
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-heading);
  margin: 8px 0 3px 0;
  letter-spacing: -0.01em;
}

.metric-meta {
  font-size: 0.76rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Chart Canvas Section
   ========================================================================== */
.chart-card {
  padding: 20px 22px;
}

.chart-card-header {
  margin-bottom: 14px;
}

.chart-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chart-header-left h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-heading);
}

.chart-container {
  position: relative;
  width: 100%;
  height: 420px;
}

/* ==========================================================================
   Table & Excel Integration Section
   ========================================================================== */
.table-card {
  padding: 20px 22px;
}

.table-header-left h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-heading);
}

.table-subtitle {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.table-actions {
  display: flex;
  gap: 8px;
}

.table-wrapper {
  overflow-x: auto;
  margin-top: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  text-align: left;
}

.data-table th, .data-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  background: var(--bg-surface);
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--ob360-purple);
  text-transform: uppercase;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

body.dark-theme .data-table th {
  color: var(--ob360-teal);
}

.data-table td {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.data-table td.cat-col {
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--text-primary);
}

.data-table td.num-col, .data-table th.num-col {
  text-align: right;
}

.data-table tr:hover td {
  background-color: var(--bg-surface-hover);
}

.data-table tfoot tr td {
  font-weight: 700;
  background: var(--bg-surface);
  border-top: 2px solid var(--ob360-green);
  border-bottom: none;
  color: var(--text-heading);
}

.data-table .delta-pos {
  color: #C0392B;
  font-weight: 600;
}

.data-table .delta-neg {
  color: #27AE60;
  font-weight: 600;
}

/* ==========================================================================
   Footer (O'Brien360 Style)
   ========================================================================== */
.app-footer {
  margin-top: 10px;
  border-top: 2px solid var(--ob360-purple);
  padding-top: 14px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.footer-address strong {
  color: var(--ob360-purple);
}

body.dark-theme .footer-address strong {
  color: var(--ob360-teal);
}

.footer-address a {
  color: var(--ob360-blue);
  text-decoration: none;
}

.footer-address a:hover {
  text-decoration: underline;
}

.footer-tagline {
  margin-top: 3px;
  color: var(--ob360-green);
  font-style: italic;
  font-weight: 600;
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--ob360-green);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25), 0 0 10px rgba(140, 189, 58, 0.2);
  z-index: 1000;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 360px;
}

.toast-icon {
  font-size: 1.3rem;
}

.toast-body strong {
  display: block;
  font-size: 0.86rem;
  color: var(--text-heading);
}

.toast-body p {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Utility classes */
.hidden {
  display: none !important;
}

.divider {
  color: var(--border-color);
}

/* ==========================================================================
   Fixed-Column Compliance Table: Two-Level Header & Gas Dash Cells
   ========================================================================== */

.data-table .scenario-group-header {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 10px 8px 8px;
  border-left: 2px solid var(--border-color);
}

.data-table .sub-col {
  font-size: 0.72rem;
  font-weight: 600;
  text-align: center;
  padding: 6px 4px;
  border-left: 1px solid var(--border-color);
  white-space: nowrap;
  color: var(--text-secondary);
  background: var(--bg-surface);
  line-height: 1.3;
}

.data-table tbody td.num-col,
.data-table tfoot td.num-col {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 6px 10px;
  border-left: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table .gas-col {
  background: rgba(230, 126, 34, 0.04);
}

.data-table .elec-only {
  color: var(--text-muted, #aaa);
  background: var(--bg-surface);
  font-style: italic;
  text-align: center;
  font-family: var(--font-body);
}

.data-table tbody tr:hover .elec-only {
  background: var(--bg-surface);
}

/* ==========================================================================
   CSV Log Export & Append Cards
   ========================================================================== */

.csv-export-card {
  margin-top: 0;
}

.csv-path-config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 14px;
}

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

.csv-path-config-grid .csv-field-group {
  flex: 1;
}

.csv-path-config-grid .csv-input {
  width: 100%;
}

.csv-target-info {
  font-size: 0.84rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.csv-target-info code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--bg-surface);
  color: var(--ob360-slate-blue);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

body.dark-theme .csv-target-info code {
  color: #8EBAF7;
  background: rgba(77, 118, 173, 0.2);
}

.csv-export-form {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  padding: 16px 0;
  flex-wrap: wrap;
}

.csv-field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.csv-input {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
}

.csv-export-btn {
  height: 38px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.csv-note {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin: 0;
  padding: 10px 14px;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--ob360-green);
  line-height: 1.5;
}

/* Folder picker row */
.csv-location-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.csv-location-row .csv-input {
  flex: 1;
  min-width: 0;
  cursor: default;
  color: var(--text-secondary);
}

.csv-browse-btn {
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  height: 36px;
  font-size: 0.84rem;
  font-weight: 600;
  flex-shrink: 0;
}

.csv-location-status {
  display: block;
  font-size: 0.78rem;
  margin-top: 4px;
  min-height: 1.2em;
  transition: color 0.2s;
}

.csv-location-status.status-ok {
  color: var(--ob360-green, #4caf50);
}

.csv-location-status.status-warn {
  color: #e6a817;
}

/* Method 3: Append Section Body */
.append-section-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 10px;
}

.append-instructions {
  font-size: 0.88rem;
  color: var(--text-primary);
  margin: 0;
}

.append-scenario-selector {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.append-selector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
}

.append-selector-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.append-checklist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.append-check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.append-check-item:hover {
  border-color: var(--ob360-green);
  background: var(--bg-surface-hover);
}

.append-check-item input[type="checkbox"] {
  cursor: pointer;
  accent-color: var(--ob360-green);
  width: 16px;
  height: 16px;
}

.append-submit-row {
  display: flex;
  justify-content: flex-start;
  margin-top: 4px;
}