/**
 * Legacy advanced workbench (/) — enterprise dark theme
 * Works with portal.css + enterprise.css
 */

body.legacy-workbench {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.legacy-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 24px;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.legacy-topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.legacy-topbar-brand svg,
.legacy-brand-icon {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.75;
  flex-shrink: 0;
}

.legacy-brand-logo {
  height: 28px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  flex-shrink: 0;
}

.legacy-topbar-brand.brand-lockup.has-logo .legacy-brand-icon {
  display: none;
}

.legacy-theme-toggle {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--surface2);
  border: 1px solid var(--border);
  cursor: pointer;
  font-family: inherit;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.legacy-theme-toggle:hover {
  color: var(--text);
  border-color: var(--muted);
}

.legacy-theme-toggle[data-theme-choice="dark"],
.legacy-theme-toggle[data-theme-choice="light"] {
  color: var(--text);
}

.legacy-powered-by {
  text-align: center;
  padding: 12px 24px 24px;
  font-size: 0.75rem;
  color: var(--muted);
}

.legacy-powered-by.hidden {
  display: none;
}

.legacy-topbar-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.legacy-topbar-nav a {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.legacy-topbar-nav a:hover {
  color: var(--text);
  background: var(--surface2);
}

.legacy-topbar-nav a.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.legacy-topbar-nav a.primary:hover {
  background: var(--accent-hover);
  color: #fff;
}

.legacy-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 24px 48px;
}

.legacy-hero {
  margin-bottom: 24px;
  padding: 28px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.wb-hero-logo {
  display: block;
  max-width: min(420px, 100%);
  width: auto;
  height: auto;
  margin: 0 auto 20px;
  object-fit: contain;
}

.wb-hero-logo.hidden {
  display: none !important;
}

.legacy-hero.has-hero-logo .wb-hero-title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.legacy-topbar-brand.has-logo .legacy-brand-logo {
  max-height: 56px;
  max-width: min(420px, 48vw);
}

.legacy-hero h1 {
  font-size: 1.625rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.legacy-hero p {
  color: var(--muted);
  font-size: 0.9375rem;
  max-width: 640px;
  line-height: 1.55;
}

.legacy-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.legacy-tag {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--muted);
}

.legacy-workbench .container {
  max-width: none;
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.legacy-workbench .header {
  display: none;
}

.legacy-workbench .settings-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.legacy-workbench .settings-bar label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
}

.legacy-workbench .settings-bar input {
  flex: 1;
  min-width: 200px;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 0.875rem;
}

.legacy-workbench .settings-bar input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.legacy-workbench .settings-bar .button {
  width: auto;
  padding: 9px 18px;
  font-size: 0.875rem;
}

.legacy-workbench .onboarding {
  margin: 20px 24px 0;
  padding: 20px 24px;
  background: var(--accent-muted);
  border: 1px solid rgba(37, 99, 235, 0.25);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
}

.legacy-workbench .onboarding h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.legacy-workbench .onboarding ol {
  margin: 10px 0 10px 20px;
  font-size: 0.875rem;
  line-height: 1.6;
}

.legacy-workbench .onboarding code {
  background: var(--surface2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.8125rem;
}

.legacy-workbench .tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 12px 16px 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.legacy-workbench .tab {
  flex: 0 1 auto;
  min-width: auto;
  padding: 10px 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius) var(--radius) 0 0;
  border-bottom: none;
  transition: color 0.15s, background 0.15s;
}

.legacy-workbench .tab:hover {
  color: var(--text);
  background: var(--surface2);
}

.legacy-workbench .tab.active {
  color: var(--accent);
  background: var(--bg);
  border-color: var(--border);
  border-bottom: 1px solid var(--bg);
  margin-bottom: -1px;
  position: relative;
  z-index: 1;
}

.legacy-workbench .content {
  padding: 28px 24px 32px;
  background: var(--bg);
  min-height: 420px;
}

.legacy-workbench .input-group {
  margin-bottom: 20px;
}

.legacy-workbench .input-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.legacy-workbench .input-group textarea,
.legacy-workbench .input-group input,
.legacy-workbench .input-group select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.legacy-workbench .input-group textarea {
  min-height: 130px;
  resize: vertical;
  line-height: 1.55;
}

.legacy-workbench .input-group input:focus,
.legacy-workbench .input-group textarea:focus,
.legacy-workbench .input-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.legacy-workbench .checkbox-group {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0;
  font-size: 0.875rem;
  color: var(--muted);
}

.legacy-workbench .checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.legacy-workbench .button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  width: auto;
  min-width: 140px;
  transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
  box-shadow: var(--shadow-sm);
}

.legacy-workbench .button:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.legacy-workbench .button:active {
  transform: translateY(0);
}

.legacy-workbench .button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.legacy-workbench .button.secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}

.legacy-workbench .button.secondary:hover {
  background: var(--surface-elevated);
  border-color: var(--muted);
}

.legacy-workbench .response {
  margin-top: 20px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--accent);
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text);
}

.legacy-workbench .response.loading {
  color: var(--muted);
  font-style: italic;
}

.legacy-workbench .response.error {
  background: rgba(220, 38, 38, 0.08);
  border-left-color: var(--danger);
  color: #fca5a5;
}

html[data-theme="light"] .legacy-workbench .response.error {
  color: #b91c1c;
  background: #fef2f2;
}

.legacy-workbench .sources {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.legacy-workbench .sources h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 10px;
}

.legacy-workbench .sources li {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.legacy-workbench .file-link {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  padding: 10px 18px;
  background: var(--success);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
}

.legacy-workbench .file-link:hover {
  filter: brightness(1.08);
}

.legacy-workbench .status {
  margin: 16px 24px 0;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid var(--border);
}

.legacy-workbench .status.healthy {
  background: rgba(22, 163, 74, 0.1);
  border-color: rgba(22, 163, 74, 0.3);
  color: #86efac;
}

.legacy-workbench .status.degraded {
  background: rgba(217, 119, 6, 0.1);
  border-color: rgba(217, 119, 6, 0.3);
  color: #fcd34d;
}

.legacy-workbench .kb-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.legacy-workbench .documents-list {
  max-height: 480px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 8px;
  background: var(--surface);
}

.legacy-workbench .document-item {
  padding: 14px 16px;
  margin-bottom: 6px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.legacy-workbench .document-item:hover {
  background: var(--surface2);
}

.legacy-workbench .document-name {
  font-weight: 600;
  color: var(--text);
  font-size: 0.875rem;
}

.legacy-workbench .document-meta {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 4px;
}

.legacy-workbench .btn-small {
  padding: 6px 12px;
  font-size: 0.75rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-weight: 600;
}

.legacy-workbench .btn-delete {
  background: rgba(220, 38, 38, 0.15);
  color: #fca5a5;
  border: 1px solid rgba(220, 38, 38, 0.3);
}

.legacy-workbench .btn-delete:hover {
  background: rgba(220, 38, 38, 0.25);
}

.legacy-workbench .search-result {
  padding: 14px 16px;
  margin-bottom: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 3px solid var(--success);
}

.legacy-workbench .search-result-title,
.legacy-workbench .search-result-title a {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.875rem;
}

.legacy-workbench .search-result-url {
  font-size: 0.75rem;
  color: var(--muted);
}

.legacy-workbench .search-result-snippet {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

.legacy-workbench .sub-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
  padding-bottom: 0;
  border-bottom: none;
}

.legacy-workbench .sub-tab {
  padding: 8px 14px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}

.legacy-workbench .sub-tab:hover {
  color: var(--text);
  border-color: var(--muted);
}

.legacy-workbench .sub-tab.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.legacy-workbench .assist-preview {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
}

.legacy-workbench pre.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-family: ui-monospace, 'Cascadia Code', monospace;
}

.legacy-workbench .tag-list {
  color: var(--muted);
  font-size: 0.875rem;
}

.legacy-workbench .legacy-banner {
  display: none;
}

.legacy-workbench .tab-content {
  display: none;
}

.legacy-workbench .tab-content.active {
  display: block;
}

.legacy-workbench .assist-pane {
  display: none;
}

.legacy-workbench .assist-pane.active {
  display: block;
}

.legacy-workbench .assist-preview iframe {
  width: 100%;
  min-height: 320px;
  border: none;
  background: var(--bg);
}

.legacy-workbench .assist-preview svg {
  max-width: 100%;
  height: auto;
}

.legacy-workbench button.wb-auth-download,
.legacy-workbench .wb-auth-download.file-link {
  border: none;
  background: transparent;
  color: var(--accent);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}

.legacy-workbench button.wb-auth-download:hover:not(:disabled) {
  color: var(--text);
}

.legacy-workbench .wb-svg-preview-img {
  display: block;
  margin: 0 auto;
  max-height: 420px;
}

.legacy-workbench .maha-svg-preview,
.legacy-workbench .wb-svg-preview {
  margin: 12px 0 16px;
  padding: 12px;
  border-radius: 12px;
  background: var(--surface-2, rgba(255, 255, 255, 0.04));
  border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
}

.legacy-workbench .maha-generated-image {
  display: block;
  max-width: 100%;
  max-height: 420px;
  margin: 0 auto;
  border-radius: 8px;
}

.legacy-workbench .sources ul {
  list-style: none;
  padding-left: 0;
}

.legacy-workbench .document-info {
  flex: 1;
  min-width: 0;
}

.legacy-workbench .document-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.legacy-workbench .kb-section + .kb-section {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.legacy-workbench #upload-form {
  margin-bottom: 20px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.legacy-workbench #upload-progress {
  margin-top: 12px;
  padding: 12px 14px;
  background: var(--accent-muted);
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.legacy-workbench #kb-status {
  margin-bottom: 16px;
  padding: 12px 16px;
  background: rgba(217, 119, 6, 0.08);
  border-radius: var(--radius);
  font-size: 0.875rem;
  border-left: 3px solid var(--warning);
  color: var(--text-secondary);
}

.legacy-workbench #kb-stats {
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--muted);
}

.legacy-workbench .kb-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.legacy-workbench .kb-actions .button {
  width: auto;
}

.legacy-workbench .button.success {
  background: var(--success);
}

.legacy-workbench .button.danger {
  background: var(--danger);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-sm);
}

.legacy-workbench .button.danger:hover {
  filter: brightness(1.08);
  background: var(--danger);
}

.legacy-workbench .upload-type-row {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.legacy-workbench .upload-type-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-secondary);
}

.legacy-workbench .inline-panel {
  margin-top: 16px;
  padding: 14px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-height: 300px;
  overflow-y: auto;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .legacy-shell { padding: 16px; }
  .legacy-hero { padding: 20px; }
  .legacy-topbar { padding: 0 16px; height: auto; min-height: 56px; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
  .legacy-workbench .content { padding: 20px 16px; }
  .legacy-workbench .tab { padding: 8px 12px; font-size: 0.75rem; }
}

html[data-theme="light"] .legacy-workbench .tab.active {
  background: var(--surface);
}