/* ── Use Case Layout ── */
.usecase-container {
  padding: 0;
  max-width: 100%;
}

.view-header {
  padding: 24px 48px 20px;
  border-bottom: 1px solid var(--border);
}

.view-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.view-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
  max-width: 700px;
  line-height: 1.5;
}

.usecase-tiles {
  display: flex;
  flex-direction: column;
}

.usecase-tile {
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.usecase-tile:last-child {
  border-bottom: none;
}

.tile-header {
  padding: 18px 48px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.tile-tag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 6px;
}

.tile-tag-explain {
  background: var(--accent-glow);
  color: var(--accent-hover);
}

.tile-tag-demo {
  background: var(--success-bg);
  color: var(--success);
}

.tile-tag-output {
  background: var(--warning-bg);
  color: var(--warning);
}

.tile-title {
  font-size: 15px;
  font-weight: 600;
}

.tile-body {
  padding: 0 48px 28px;
  flex: 1;
}

/* ── Explain Chevron Toggle ── */
.explain-chevron {
  transition: transform 0.2s ease;
}
.explain-chevron.open {
  transform: rotate(180deg) !important;
}

/* ── Explain Tile ── */
.explain-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.explain-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.explain-icon svg {
  width: 26px;
  height: 26px;
  color: var(--accent);
}

.explain-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.explain-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.explain-stat {
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  text-align: center;
  border: 1px solid var(--border-subtle);
}

.explain-stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-hover);
}

.explain-stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.explain-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.explain-feature {
  display: flex;
  gap: 14px;
  padding: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.explain-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}

.explain-feature-icon.green { background: var(--success-bg); }
.explain-feature-icon.amber { background: var(--warning-bg); }
.explain-feature-icon.red { background: var(--danger-bg); }
.explain-feature-icon.blue { background: var(--accent-glow); }

.explain-feature-text h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.explain-feature-text p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Demo Tile ── */
.demo-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.demo-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.demo-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.demo-form label {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  display: block;
}

.demo-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.demo-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  font-size: 13px;
  opacity: 0.3;
  transition: all var(--transition-normal);
}

.demo-step.active {
  opacity: 1;
  background: var(--accent-subtle);
  border-left: 3px solid var(--accent);
}

.demo-step.done {
  opacity: 1;
}

.demo-step-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
}

.demo-step.active .demo-step-icon {
  background: var(--accent);
  color: white;
}

.demo-step.done .demo-step-icon {
  background: var(--success);
  color: white;
}

/* ── Result Cards (Demo output) ── */
.demo-result {
  animation: viewFadeIn 400ms ease;
}

.demo-result-header {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.result-scores {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.result-score-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.result-score-label {
  font-size: 13px;
  color: var(--text-secondary);
  min-width: 140px;
}

.result-score-bar {
  flex: 1;
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.result-score-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 800ms ease;
}

.result-score-value {
  font-size: 14px;
  font-weight: 700;
  min-width: 36px;
  text-align: right;
}

.result-verdict {
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
}

.verdict-approve {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid rgba(0, 196, 140, 0.2);
}

.verdict-conditional {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid rgba(255, 185, 70, 0.2);
}

.verdict-reject {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid rgba(255, 107, 107, 0.2);
}

/* ── Output Tile (Document preview) ── */
.doc-preview {
  background: #FAFAFA;
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  color: #1a1a1a;
  font-size: 13px;
  line-height: 1.7;
  max-width: 900px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.doc-preview h2 {
  font-size: 20px;
  color: #111;
  margin-bottom: 4px;
  font-weight: 700;
}

.doc-preview h3 {
  font-size: 14px;
  color: #222;
  margin: 20px 0 8px;
  font-weight: 600;
  padding-bottom: 4px;
  border-bottom: 1px solid #e0e0e0;
}

.doc-preview .doc-header {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid #333;
}

.doc-preview .doc-header .doc-logo {
  font-size: 11px;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.doc-preview table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0;
}

.doc-preview th, .doc-preview td {
  border: 1px solid #ddd;
  padding: 8px 12px;
  font-size: 12px;
  text-align: left;
}

.doc-preview th {
  background: #f0f0f0;
  font-weight: 600;
  color: #333;
  text-transform: none;
  letter-spacing: 0;
}

.doc-preview .doc-signature {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid #ddd;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.doc-preview .sig-line {
  border-top: 1px solid #999;
  padding-top: 6px;
  font-size: 11px;
  color: #666;
  margin-top: 40px;
}

/* ── Mock Outlook ── */
.mock-outlook {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.outlook-toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
}

.outlook-toolbar .btn-sm {
  padding: 6px 14px;
  font-size: 12px;
}

.outlook-compose {
  display: flex;
  min-height: 380px;
}

.outlook-email {
  flex: 1;
  padding: 18px 20px;
}

.outlook-field {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 13px;
}

.outlook-field-label {
  font-size: 12px;
  color: var(--text-secondary);
  min-width: 55px;
  font-weight: 500;
}

.outlook-field-value {
  color: var(--text-primary);
}

.outlook-body {
  padding: 14px 0;
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.outlook-body p {
  margin-bottom: 10px;
}

.outlook-risk-panel {
  width: 0;
  overflow: hidden;
  border-left: 1px solid var(--border);
  transition: width 500ms ease;
  background: var(--bg-surface);
}

.outlook-risk-panel.open {
  width: 340px;
}

.risk-panel-content {
  padding: 20px;
  width: 340px;
}

.risk-panel-header {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.risk-flag {
  padding: 12px 14px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  border-left: 3px solid;
}

.risk-flag-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}

.risk-flag-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.risk-flag-action {
  font-size: 12px;
  color: var(--accent-hover);
  margin-top: 8px;
  font-weight: 500;
}

/* ── Mock Spreadsheet ── */
.mock-spreadsheet {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.spreadsheet-toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}

.spreadsheet-grid {
  overflow-x: auto;
}

.spreadsheet-grid table {
  font-size: 12px;
  width: 100%;
}

.spreadsheet-grid th {
  background: var(--bg-elevated);
  padding: 10px 14px;
  font-size: 11px;
}

.spreadsheet-grid td {
  padding: 9px 14px;
  font-size: 12px;
  border-right: 1px solid var(--border-subtle);
  min-width: 90px;
  white-space: nowrap;
}

.cell-filling {
  animation: cellFill 400ms ease forwards;
}

@keyframes cellFill {
  from { background: var(--accent-glow); }
  to { background: transparent; }
}

.cell-done {
  color: var(--success);
}

/* ── Upload Zone ── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.upload-zone:hover {
  border-color: var(--accent);
  background: var(--accent-subtle);
}

.upload-zone-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 14px;
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.upload-zone-text {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 6px;
}

.upload-zone-hint {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ── Parsing animation ── */
.parsing-animation {
  text-align: center;
  padding: 40px;
}

.parsing-doc {
  width: 72px;
  height: 88px;
  background: var(--bg-elevated);
  border-radius: 8px;
  margin: 0 auto 18px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
}

.parsing-scan-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: scanDown 2s ease-in-out infinite;
}

@keyframes scanDown {
  0% { top: 0; }
  50% { top: 100%; }
  100% { top: 0; }
}

.parsing-text {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ── Clause analysis rows ── */
.clause-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.clause-row {
  display: grid;
  grid-template-columns: 60px 1fr 130px 100px;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  font-size: 13px;
  align-items: center;
  animation: viewFadeIn 300ms ease;
}

.clause-id {
  font-weight: 600;
  color: var(--text-secondary);
}

.clause-text {
  color: var(--text-primary);
}

.clause-status {
  font-weight: 600;
  font-size: 12px;
}

.clause-compliant { color: var(--success); }
.clause-partial { color: var(--warning); }
.clause-noncompliant { color: var(--danger); }

/* ── Section dividers ── */
.section-divider {
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ── Process flow ── */
.process-flow {
  display: flex;
  gap: 0;
  align-items: stretch;
  margin: 20px 0;
}

.process-step {
  flex: 1;
  padding: 20px 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  position: relative;
  text-align: center;
}

.process-step:first-child {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.process-step:last-child {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.process-step-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
}

.process-step-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
}

.process-step-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ── KPI row ── */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.kpi-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.kpi-value {
  font-size: 28px;
  font-weight: 700;
}

.kpi-value.accent { color: var(--accent-hover); }
.kpi-value.green { color: var(--success); }
.kpi-value.amber { color: var(--warning); }
.kpi-value.red { color: var(--danger); }

.kpi-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.kpi-delta {
  font-size: 11px;
  margin-top: 6px;
  font-weight: 500;
}

.kpi-delta.positive { color: var(--success); }
.kpi-delta.negative { color: var(--danger); }

/* ── Breadcrumb (UC3 Risk Analytics) ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--accent-hover);
  text-decoration: none;
  cursor: pointer;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb .separator {
  color: var(--text-tertiary);
}

/* ── Expandable Sections (UC2, UC4) ── */
.expandable-section {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 8px;
}

.expand-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-elevated);
  border: none;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.expand-toggle:hover {
  background: var(--bg-surface);
}

.expand-toggle .chevron {
  transition: transform var(--transition-normal);
  color: var(--text-secondary);
}

.expand-toggle.open .chevron {
  transform: rotate(180deg);
}

.expandable-content {
  display: none;
  padding: 16px 18px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
}

.expandable-content.open {
  display: block;
}

/* ── Regulator Grid (UC4) ── */
.regulator-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.regulator-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition-fast);
}

.regulator-card:hover {
  border-color: var(--accent);
}

.regulator-card .reg-acronym {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-hover);
  margin-bottom: 4px;
}

.regulator-card .reg-name {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.regulator-card .reg-scope {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
}

.regulator-card .reg-update {
  font-size: 11px;
  color: var(--text-tertiary);
}

.regulator-card .dept-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.dept-tag {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 500;
}

.dept-tag-finance { background: rgba(46,196,182,0.15); color: var(--accent-hover); }
.dept-tag-it { background: rgba(0,196,140,0.12); color: var(--success); }
.dept-tag-legal { background: rgba(255,185,70,0.12); color: var(--warning); }
.dept-tag-operations { background: rgba(255,107,107,0.12); color: var(--danger); }
.dept-tag-hr { background: rgba(139,139,158,0.15); color: var(--text-secondary); }
.dept-tag-procurement { background: rgba(46,196,182,0.1); color: var(--accent); }

/* ── Gate Status (UC5) ── */
.gate-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  padding: 6px 0;
}

.gate-embedded {
  color: var(--success);
}

.gate-missing {
  color: var(--danger);
}

/* ── Stage Flow (UC5) ── */
.stage-flow {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: 16px 0;
}

.stage-box {
  padding: 14px 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  min-width: 120px;
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 500;
}

.stage-gate {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent-hover);
  font-weight: 600;
}

.stage-arrow {
  color: var(--text-tertiary);
  font-size: 18px;
  padding: 0 6px;
  flex-shrink: 0;
}

/* ── Department Card (UC3) ── */
.department-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.department-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
}

/* ── Quick Ask Chips (UC1) ── */
.quick-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.quick-chip {
  padding: 8px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quick-chip:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
  background: var(--accent-glow);
}

/* ── Risk Type Checkboxes (UC2) ── */
.risk-checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.risk-checkbox {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  cursor: pointer;
}

.risk-checkbox input[type="checkbox"] {
  accent-color: var(--accent);
}

/* ── Progress Bar ── */
.progress-bar {
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  transition: width var(--transition-slow);
}

/* ── Responsive: regulator grid ── */
@media (max-width: 900px) {
  .regulator-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}