/* ===== VOC Theme — Guandata Business Blue ===== */
:root {
  /* Core palette: clean, professional, controlled */
  --bg: #f1f5f9;
  --surface: #ffffff;
  --surface-hover: #f8fafc;

  --text: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;

  --border: #e2e8f0;
  --border-subtle: #f1f5f9;

  /* Primary: Guandata business blue */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --primary-ghost: rgba(37,99,235,0.06);

  /* Semantic: subdued, not neon */
  --success: #059669;
  --success-light: #d1fae5;
  --warning: #b45309;
  --warning-light: #fef3c7;
  --danger: #dc2626;
  --danger-light: #fee2e2;
  --info: #2563eb;
  --info-light: #dbeafe;

  /* Elevation */
  --shadow-sm: 0 1px 2px 0 rgba(15,23,42,0.04);
  --shadow-md: 0 4px 6px -1px rgba(15,23,42,0.06), 0 2px 4px -2px rgba(15,23,42,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(15,23,42,0.06), 0 4px 6px -4px rgba(15,23,42,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15,23,42,0.06), 0 8px 10px -6px rgba(15,23,42,0.04);

  /* Geometry */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Motion */
  --t-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --t-base: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

body {
  background: var(--bg) !important;
  color: var(--text) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif !important;
  -webkit-font-smoothing: antialiased;
}

/* ===== Sidebar ===== */
.app-sidebar {
  background: var(--surface) !important;
  border-right: 1px solid var(--border) !important;
  box-shadow: none !important;
}
.app-sidebar-item {
  color: var(--text-secondary) !important;
  border-radius: var(--radius-md) !important;
  margin: 2px 8px !important;
  padding: 10px 12px !important;
  transition: all var(--t-fast) !important;
  font-weight: 500 !important;
  font-size: 13px !important;
}
.app-sidebar-item:hover, .app-sidebar-item.active {
  background: var(--primary-ghost) !important;
  color: var(--primary) !important;
}
.app-sidebar-submenu-item {
  color: var(--text-secondary) !important;
  border-radius: var(--radius-sm) !important;
  transition: all var(--t-fast) !important;
  font-size: 13px !important;
}
.app-sidebar-submenu-item:hover, .app-sidebar-submenu-item.active {
  background: var(--primary-light) !important;
  color: var(--primary-hover) !important;
}

/* Sidebar submenu (dark bg variant in workbench) */
.app-sidebar-subitem {
  color: rgba(255,255,255,0.85) !important;
}
.app-sidebar-subitem:hover, .app-sidebar-subitem.active {
  color: #fff !important;
  background: rgba(24,144,255,0.12) !important;
}
.app-sidebar-toggle {
  color: var(--text-tertiary) !important;
  border-top: 1px solid var(--border) !important;
}
.app-sidebar-toggle:hover { color: var(--primary) !important; }

/* ===== Navbar ===== */
.app-navbar {
  background: var(--surface) !important;
  border-bottom: 1px solid var(--border) !important;
  box-shadow: var(--shadow-sm) !important;
}
.app-navbar-title { color: var(--text) !important; font-weight: 700 !important; font-size: 16px !important; }
.app-navbar-search {
  background: var(--bg) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  color: var(--text) !important;
  transition: all var(--t-fast) !important;
}
.app-navbar-search:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1) !important;
}
.app-navbar-api input {
  background: var(--bg) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
}
.app-navbar-icon-btn {
  border-radius: var(--radius-md) !important;
  color: var(--text-secondary) !important;
  transition: all var(--t-fast) !important;
}
.app-navbar-icon-btn:hover {
  background: var(--primary-ghost) !important;
  color: var(--primary) !important;
}

/* ===== Main ===== */
.app-main { background: var(--bg) !important; }

/* ===== Step Cards ===== */
.step {
  background: var(--surface) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-sm) !important;
  border: 1px solid var(--border) !important;
  transition: all var(--t-base) !important;
}
.step:hover {
  box-shadow: var(--shadow-md) !important;
  border-color: #cbd5e1 !important;
}
.step::before {
  content: '';
  position: absolute;
  top: 0; left: 24px; right: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 0 0 3px 3px;
  opacity: 0;
  transition: opacity var(--t-base);
}
.step:hover::before { opacity: 1; }
.step-num {
  background: var(--primary) !important;
  box-shadow: none !important;
  border-radius: 50% !important;
  font-weight: 600 !important;
  font-size: 13px !important;
  width: 28px !important;
  height: 28px !important;
}
.step-title { color: var(--text) !important; font-weight: 600 !important; font-size: 15px !important; }
.step-desc { color: var(--text-secondary) !important; font-size: 13px !important; }

/* ===== Buttons ===== */
.btn {
  border-radius: var(--radius-md) !important;
  font-weight: 500 !important;
  transition: all var(--t-fast) !important;
  border: 1px solid var(--border) !important;
  background: var(--surface) !important;
  color: var(--text) !important;
  font-size: 13px !important;
}
.btn:hover {
  background: var(--surface-hover) !important;
  border-color: #cbd5e1 !important;
}
.btn-primary {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: none !important;
}
.btn-primary:hover {
  background: var(--primary-hover) !important;
  box-shadow: var(--shadow-md) !important;
}
.btn-success {
  background: var(--success) !important;
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: none !important;
}
.btn-success:hover { background: #047857 !important; }

/* ===== Form Inputs ===== */
.form-group input, .form-group select, .form-group textarea {
  border-radius: var(--radius-md) !important;
  border: 1px solid var(--border) !important;
  background: var(--surface) !important;
  transition: all var(--t-fast) !important;
  padding: 8px 12px !important;
  font-size: 13px !important;
}
.form-group input:hover, .form-group select:hover, .form-group textarea:hover {
  border-color: #cbd5e1 !important;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1) !important;
  outline: none !important;
}
.form-group label {
  color: var(--text-secondary) !important;
  font-weight: 600 !important;
  font-size: 12px !important;
}
.form-group small { color: var(--text-tertiary) !important; }

/* ===== Dropzone ===== */
.dropzone {
  border: 2px dashed var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: var(--surface) !important;
  transition: all var(--t-base) !important;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary) !important;
  background: var(--primary-light) !important;
}
.file-info {
  border-radius: var(--radius-md) !important;
  background: var(--primary-light) !important;
  border: 1px solid rgba(37,99,235,0.12) !important;
}

/* ===== Tables ===== */
.preview-table thead th, .review-table thead th {
  background: var(--surface-hover) !important;
  border-bottom: 2px solid var(--primary) !important;
  color: var(--text) !important;
  font-weight: 600 !important;
  font-size: 12px !important;
}
.preview-table tbody td, .review-table tbody td {
  border-bottom: 1px solid var(--border-subtle) !important;
}
.preview-table tbody tr:hover, .review-table tbody tr:hover {
  background: var(--surface-hover) !important;
}
.review-table tbody tr.editing { background: var(--primary-light) !important; }

/* ===== Progress Bar ===== */
.progress-bar-bg {
  background: var(--border-subtle) !important;
  border-radius: 4px !important;
  height: 6px !important;
}
.progress-bar-fill {
  background: var(--primary) !important;
  border-radius: 4px !important;
}

/* ===== Toast ===== */
.toast {
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-xl) !important;
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  top: 20px !important;
}
.toast.ok { border-left: 4px solid var(--success) !important; }
.toast.err { border-left: 4px solid var(--danger) !important; }
.toast.info { border-left: 4px solid var(--primary) !important; }

/* ===== Modal ===== */
.modal-overlay {
  background: rgba(15,23,42,0.4) !important;
  backdrop-filter: blur(4px) !important;
}
.modal-content {
  border-radius: var(--radius-xl) !important;
  box-shadow: var(--shadow-xl) !important;
  border: 1px solid var(--border) !important;
  background: var(--surface) !important;
}
.modal-close {
  border-radius: var(--radius-md) !important;
  transition: all var(--t-fast) !important;
}
.modal-close:hover {
  background: var(--danger-light) !important;
  color: var(--danger) !important;
}

/* ===== Tags & Badges ===== */
.tag-pill {
  background: var(--primary-light) !important;
  color: var(--primary-hover) !important;
  border-radius: 999px !important;
  font-weight: 600 !important;
  padding: 2px 10px !important;
  font-size: 12px !important;
}
.badge-normal {
  background: var(--success-light) !important;
  color: #065f46 !important;
  border-radius: 999px !important;
  font-size: 12px !important;
}
.badge-uncertain {
  background: var(--warning-light) !important;
  color: #92400e !important;
  border-radius: 999px !important;
  font-size: 12px !important;
}
.badge-rejected {
  background: var(--danger-light) !important;
  color: #991b1b !important;
  border-radius: 999px !important;
  font-size: 12px !important;
}
.badge-reviewed {
  background: var(--info-light) !important;
  color: #1e3a8a !important;
  border-radius: 999px !important;
  font-size: 12px !important;
}

/* ===== Stats ===== */
.stat-card {
  background: var(--surface) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-sm) !important;
  border: 1px solid var(--border) !important;
  transition: all var(--t-base) !important;
}
.stat-card:hover {
  box-shadow: var(--shadow-md) !important;
  border-color: #cbd5e1 !important;
}
.score-bar-fill { border-radius: 4px !important; }
.score-high { background: var(--success) !important; }
.score-mid { background: var(--warning) !important; }
.score-low { background: var(--danger) !important; }

/* ===== Pagination ===== */
.page-btn {
  border-radius: var(--radius-md) !important;
  border: 1px solid var(--border) !important;
  background: var(--surface) !important;
  color: var(--text-secondary) !important;
  font-weight: 500 !important;
  transition: all var(--t-fast) !important;
  min-height: 32px;
  min-width: 32px;
  font-size: 13px !important;
}
.page-btn:hover {
  background: var(--primary-ghost) !important;
  color: var(--primary) !important;
  border-color: rgba(37,99,235,0.2) !important;
}
.page-btn.active {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: transparent !important;
}

/* ===== Batch Bar ===== */
.batch-bar {
  background: var(--primary-light) !important;
  border: 1px solid rgba(37,99,235,0.1) !important;
  border-radius: var(--radius-lg) !important;
}

/* ===== Code ===== */
pre.code {
  background: #0f172a !important;
  color: #e2e8f0 !important;
  border-radius: var(--radius-lg) !important;
  font-family: "JetBrains Mono", "Fira Code", ui-monospace, monospace !important;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ===== Empty State ===== */
.empty-state { text-align: center; padding: 48px 24px; color: var(--text-tertiary); }
.empty-state-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.5; }
.empty-state-text { font-size: 14px; }

/* ===== Skeleton ===== */
@keyframes mt-skel {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
  background-size: 200% 100%;
  animation: mt-skel 1.5s infinite;
  border-radius: 6px;
}

/* ===== Mobile ===== */
.mobile-sidebar-toggle {
  display: none;
  position: fixed;
  top: 12px; left: 12px;
  z-index: 1100;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text);
}
.mobile-sidebar-toggle:hover { background: var(--primary-ghost); color: var(--primary); }
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.3);
  backdrop-filter: blur(3px);
  z-index: 998;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.sidebar-overlay.active { display: block; opacity: 1; }

@media (max-width: 1024px) {
  .app-main { margin-left: 64px !important; }
  .app-sidebar { width: 64px !important; }
  .app-sidebar-menu span, .app-sidebar-submenu span, .app-sidebar-logo span { display: none !important; }
  .app-sidebar-item { justify-content: center !important; padding: 14px 0 !important; }
  .app-sidebar-toggle { display: none !important; }
}
@media (max-width: 768px) {
  .mobile-sidebar-toggle { display: flex !important; }
  .app-sidebar {
    transform: translateX(-100%) !important;
    width: 220px !important;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
    z-index: 999 !important;
  }
  .app-sidebar.open { transform: translateX(0) !important; }
  .app-sidebar.collapsed { width: 220px !important; }
  .app-sidebar.collapsed ~ .app-main { margin-left: 0 !important; }
  .app-sidebar-menu span, .app-sidebar-submenu span, .app-sidebar-logo span { display: inline !important; }
  .app-sidebar-item { justify-content: flex-start !important; padding: 14px 16px !important; }
  .app-sidebar-toggle { display: flex !important; }
  .app-main { margin-left: 0 !important; padding: 72px 12px 24px !important; }
  .app-navbar { padding: 0 12px 0 52px !important; }
  .app-navbar-title { display: none !important; }
  .step { padding: 16px !important; }
  .form-row { gap: 12px !important; }
  .form-group { min-width: 100% !important; flex: none !important; }
  .dropzone { padding: 20px 16px !important; }
  .result-actions { gap: 8px !important; }
  .btn { padding: 10px 16px !important; font-size: 14px !important; }
  .filter-bar { gap: 8px !important; }
  .stat-card { padding: 14px !important; }
  .modal-overlay { padding: 12px !important; align-items: flex-end !important; }
  .modal-content { border-radius: 16px 16px 0 0 !important; max-height: 85vh !important; }
  .stats-row { grid-template-columns: repeat(2, 1fr) !important; }
  .review-panel-header { flex-direction: column !important; align-items: stretch !important; gap: 10px !important; }
  .page-btn { min-width: 36px !important; padding: 8px !important; }
}
@media (max-width: 480px) {
  .app-navbar-api { display: none !important; }
  .stats-row { grid-template-columns: 1fr !important; }
  .step-num { width: 28px !important; height: 28px !important; font-size: 13px !important; }
  .modal-content { border-radius: 12px 12px 0 0 !important; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ===== Config Toolbar Buttons ===== */
.toolbar button.primary,
.toolbar label.btn.primary {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: transparent !important;
  border-radius: var(--radius-md) !important;
  box-shadow: none !important;
  font-weight: 500 !important;
  font-size: 13px !important;
}
.toolbar button.primary:hover,
.toolbar label.btn.primary:hover {
  background: var(--primary-hover) !important;
  box-shadow: var(--shadow-md) !important;
}
.toolbar button.danger {
  background: var(--danger) !important;
  color: #fff !important;
  border-color: transparent !important;
  border-radius: var(--radius-md) !important;
  box-shadow: none !important;
  font-weight: 500 !important;
  font-size: 13px !important;
}
.toolbar button.danger:hover { background: #b91c1c !important; }
.toolbar button,
.toolbar label.btn {
  border-radius: var(--radius-md) !important;
  border: 1px solid var(--border) !important;
  background: var(--surface) !important;
  color: var(--text) !important;
  transition: all var(--t-fast) !important;
  font-weight: 500 !important;
  font-size: 13px !important;
}
.toolbar button:hover,
.toolbar label.btn:hover {
  background: var(--surface-hover) !important;
  border-color: #cbd5e1 !important;
}
.toolbar {
  background: var(--surface) !important;
  border-bottom: 1px solid var(--border) !important;
  box-shadow: var(--shadow-sm) !important;
}
.toolbar h1 { color: var(--text) !important; font-weight: 700 !important; font-size: 16px !important; }
.toolbar .stat { color: var(--text-secondary) !important; font-size: 12px !important; }

/* ===== Config Canvas ===== */
.canvas-container { background: var(--bg) !important; }
.node {
  background: var(--surface) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-sm) !important;
  border: 1px solid var(--border) !important;
  transition: all var(--t-fast) !important;
}
.node:hover {
  box-shadow: var(--shadow-md) !important;
  border-color: #cbd5e1 !important;
}

/* ===== Workbench Mode Tabs ===== */
.mode-tab {
  border-radius: var(--radius-md) !important;
  font-weight: 500 !important;
  transition: all var(--t-fast) !important;
  border: 1px solid var(--border) !important;
  background: var(--surface) !important;
  font-size: 13px !important;
}
.mode-tab.active {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: none !important;
}
.mode-tab:hover:not(.active) {
  background: var(--primary-ghost) !important;
  color: var(--primary) !important;
  border-color: rgba(37,99,235,0.2) !important;
}

/* ===== Step Action Buttons inside workbench ===== */
.step .btn-primary,
.step button[class*="primary"] {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: transparent !important;
  border-radius: var(--radius-md) !important;
}
.step .btn-success,
.step button[class*="success"] {
  background: var(--success) !important;
  color: #fff !important;
  border-color: transparent !important;
  border-radius: var(--radius-md) !important;
}

/* ===== Review Panel Header ===== */
.review-panel-header {
  background: var(--surface) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-sm) !important;
  border: 1px solid var(--border) !important;
}

/* ===== Links ===== */
a { color: var(--primary) !important; }
a:hover { color: var(--primary-hover) !important; }

/* ===== Force override inline-style buttons (legacy Ant Design blue) ===== */
button[style*="background:#1890ff"],
button[style*="background: #1890ff"],
button[style*="background:#2196F3"],
button[style*="background: #2196F3"] {
  background: var(--primary) !important;
  border-color: transparent !important;
  color: #fff !important;
  border-radius: var(--radius-md) !important;
  box-shadow: none !important;
  font-weight: 500 !important;
}
button[style*="background:#1890ff"]:hover,
button[style*="background: #1890ff"]:hover,
button[style*="background:#2196F3"]:hover,
button[style*="background: #2196F3"]:hover {
  background: var(--primary-hover) !important;
}

/* ===== Active mode tab override ===== */
#btnSingleMode[style*="1890ff"],
#btnSingleMode {
  background: var(--primary) !important;
  border-color: transparent !important;
  color: #fff !important;
}
#btnMultiMode.active,
button.active {
  background: var(--primary) !important;
  border-color: transparent !important;
  color: #fff !important;
}

/* ===== Node level colors — Guandata palette ===== */
.node.level-0 { border-color: #dc2626 !important; background: #fef2f2 !important; }
.node.level-1 { border-color: #ea580c !important; background: #fff7ed !important; }
.node.level-2 { border-color: #059669 !important; background: #ecfdf5 !important; }
.node.level-3 { border-color: #2563eb !important; background: #eff6ff !important; }
.node.selected.level-0 { border-color: #b91c1c !important; background: #fee2e2 !important; }
.node.selected.level-1 { border-color: #c2410c !important; background: #ffedd5 !important; }
.node.selected.level-2 { border-color: #047857 !important; background: #d1fae5 !important; }
.node.selected.level-3 { border-color: #1d4ed8 !important; background: #dbeafe !important; }
.level-0 .badge { background: #dc2626 !important; }
.level-1 .badge { background: #ea580c !important; }
.level-2 .badge { background: #059669 !important; }
.level-3 .badge { background: #2563eb !important; }