:root {
  color-scheme: dark;
  --bg-dark: #0f172a;
  --bg-panel: #1e293b;
  --bg-panel-elevated: #334155;
  --bg-accent: rgba(100, 116, 139, 0.12);
  --bg-accent-strong: rgba(100, 116, 139, 0.25);
  --border: rgba(148, 163, 184, 0.1);
  --border-strong: rgba(148, 163, 184, 0.2);
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent: #3b82f6;
  --accent-strong: #60a5fa;
  --accent-highlight: #38bdf8;
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  --toolbar-bg: rgba(15, 23, 42, 0.9);
  --radius-lg: 8px;
  --radius-md: 6px;
  --radius-sm: 6px;
  --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-border: inset 0 0 0 1px rgba(148, 163, 184, 0.08);
  --font-sans: "Inter", "Segoe UI", sans-serif;
  --font-title: "Chivo", "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-sans);
}

body {
  display: flex;
}

button,
textarea,
input,
select {
  font-family: inherit;
}

h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-title);
  margin: 0;
}

.app-shell {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 100%;
}

/* ----- Modal + Submission styles ----- */
.hidden {
  display: none !important;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(2, 6, 23, 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  z-index: 9000;
}

.modal-panel {
  background: #0f172a;
  border: 1px solid #1f2937;
  border-radius: 18px;
  padding: 28px 32px;
  width: 520px;
  max-width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 30px 80px rgba(2, 6, 23, 0.65);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: #dc2626;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
}

.modal-subtitle {
  color: #94a3b8;
  margin-bottom: 18px;
}

.submit-step {
  background: #111827;
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 12px;
}

.submit-step-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-weight: 600;
  color: #e2e8f0;
}

.status-badge {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid #334155;
  color: #cbd5f5;
}

.status-badge.pending {
  border-color: #475569;
  color: #cbd5f5;
}
.status-badge.in-progress {
  border-color: #fbbf24;
  color: #fbbf24;
}
.status-badge.success {
  border-color: #22c55e;
  color: #22c55e;
}
.status-badge.error {
  border-color: #f87171;
  color: #f87171;
}

.submit-substeps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.submit-substep {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #0b1120;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
}

#trace-link-wrapper {
  margin-top: 12px;
  text-align: right;
}

#trace-link-wrapper a {
  color: #38bdf8;
  font-weight: 600;
  text-decoration: none;
}

#trace-link-wrapper a:hover {
  text-decoration: underline;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  border-bottom: 1px solid var(--border);
  background: var(--toolbar-bg);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 1px 0 var(--border);
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 100%;
}

.brand-logo {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
  object-position: left center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.brand-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(140deg, rgba(124, 92, 255, 0.32), rgba(91, 208, 255, 0.24));
  box-shadow: inset 0 0 0 1px rgba(124, 92, 255, 0.35);
  font-size: 1.6rem;
}

.brand-text h1 {
  font-size: 1.4rem;
  font-weight: 600;
}

.brand-text p {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

.btn {
  border: none;
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
}

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

.btn-ghost:hover {
  color: var(--text-primary);
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  background: var(--accent-strong);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-outline {
  background: rgba(25, 27, 38, 0.4);
  border: 1px solid rgba(148, 163, 184, 0.22);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: rgba(91, 208, 255, 0.45);
  color: white;
}

/* Dropdown Menu Styles */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  position: relative;
}

.dropdown-arrow {
  font-size: 0.8em;
  margin-left: 4px;
  transition: transform 0.2s ease;
}

.dropdown-toggle:hover .dropdown-arrow {
  transform: translateY(1px);
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  min-width: 160px;
  z-index: 1000;
  overflow: hidden;
}

.dropdown-menu.show {
  display: block;
  animation: dropdownFadeIn 0.15s ease;
}

@keyframes dropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: 10px 16px;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease;
  border-bottom: 1px solid transparent;
}

.dropdown-item:hover {
  background: var(--bg-accent);
  color: var(--accent-strong);
}

.dropdown-item:not(:last-child) {
  border-bottom-color: var(--border);
}

.dropdown-item:first-child {
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.dropdown-item:last-child {
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.btn-pill {
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(34, 40, 56, 0.72);
  color: var(--text-secondary);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.btn-pill:hover {
  color: white;
  border-color: rgba(148, 163, 184, 0.24);
}

.workspace {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr) 360px;
  flex: 1;
  min-height: 0;
}

.sidebar {
  border-right: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  background: var(--bg-panel);
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: var(--bg-dark);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-border);
}

.sidebar-section.tips {
  background: rgba(34, 40, 56, 0.55);
}

.sidebar-section.tips ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.92rem;
}

.section-heading h2 {
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.section-heading p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.block-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
}

.block {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-panel-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.2s ease, border 0.2s ease;
}

.block:hover {
  transform: translateY(-1px);
  border-color: var(--accent-highlight);
  box-shadow: var(--shadow-soft);
}

.block-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  background: rgba(100, 116, 139, 0.2);
  flex-shrink: 0;
}

.block strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.block small {
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.35;
}

.function-item {
  padding: 8px 12px;
  margin-bottom: 8px;
  border-radius: 6px;
  background: #33bbee;
  border-left: 3px solid #1f96c0;
  color: #000000;
  cursor: grab;
  user-select: none;
  box-shadow: 0 6px 18px rgba(7, 44, 61, 0.25);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.function-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(7, 44, 61, 0.35);
}

.function-item:active {
  cursor: grabbing;
}

.block[data-node-type="entry"] {
  background: #0077bb;
  border-color: rgba(0, 0, 0, 0.2);
  color: #ffffff;
}

.block[data-node-type="entry"] .block-icon {
  background: #005f93;
  color: #ffffff;
}

.block[data-node-type="entry"] small {
  color: rgba(255, 255, 255, 0.85);
}

.block[data-node-type="llm"] {
  background: #ee7733;
  border-color: rgba(0, 0, 0, 0.25);
  color: #000000;
}

.block[data-node-type="llm"] .block-icon {
  background: #c85f21;
  color: #000000;
}

.block[data-node-type="llm"] small {
  color: rgba(0, 0, 0, 0.75);
}

.block[data-node-type="conditional"] {
  background: #cc3311;
  border-color: rgba(0, 0, 0, 0.25);
  color: #ffffff;
}

.block[data-node-type="conditional"] .block-icon {
  background: #a3280d;
  color: #ffffff;
}

.block[data-node-type="conditional"] small {
  color: rgba(255, 255, 255, 0.85);
}

.block[data-node-type="tool"] {
  background: #33bbee;
  border-color: rgba(0, 0, 0, 0.2);
  color: #000000;
}

.block[data-node-type="tool"] .block-icon {
  background: #1f96c0;
  color: #000000;
}

.block[data-node-type="tool"] small {
  color: rgba(0, 0, 0, 0.75);
}

.canvas-area {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.canvas-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  background: var(--toolbar-bg);
  backdrop-filter: blur(10px);
}

.toolbar-divider {
  width: 1px;
  height: 20px;
  background: rgba(148, 163, 184, 0.12);
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.toggle input {
  accent-color: var(--accent);
}

.canvas-wrapper {
  position: relative;
  flex: 1;
  min-height: 0;
  background: #1e293b;
}

#main-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.canvas-footer {
  padding: 12px 20px;
  color: var(--text-muted);
  font-size: 0.88rem;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  background: rgba(12, 15, 24, 0.72);
}

.canvas-footer code {
  font-family: var(--font-mono);
  padding: 3px 6px;
  border-radius: 6px;
  background: rgba(32, 36, 52, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.12);
  color: var(--accent-highlight);
}

.inspector {
  border-left: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 0;
  overflow-y: auto;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: var(--bg-dark);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-border);
  min-height: 0;
  flex-shrink: 0;
}

.panel.small {
  gap: 12px;
}

.panel header h2 {
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.panel header p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

textarea {
  width: 100%;
  min-height: 120px;
  resize: vertical;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.16);
  background: rgba(15, 17, 25, 0.82);
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.45;
}

textarea:focus,
input:focus,
select:focus {
  outline: none;
  border-color: rgba(91, 208, 255, 0.55);
  box-shadow: 0 0 0 3px rgba(91, 208, 255, 0.16);
}

textarea#state-schema {
  font-family: var(--font-mono);
  min-height: 180px;
}

.panel-actions {
  display: flex;
  justify-content: flex-end;
}

.controls-grid {
  display: grid;
  gap: 10px;
}

#node-properties {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 160px;
  overflow-y: auto;
  max-height: calc(100vh - 400px);
}

#node-properties form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;  /* ADD THIS LINE */
}

.control-group label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.control-group small {
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 1.3;
}

.control-group input,
.control-group select,
.control-group textarea {
  background: rgba(12, 14, 22, 0.9);
}

.code-input {
  min-height: 180px;
  font-family: var(--font-mono);
}

.input-error {
  border-color: var(--danger) !important;
  box-shadow: 0 0 0 3px rgba(255, 111, 145, 0.25) !important;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 4px;
  transition: background 0.15s ease;
}

.checkbox-item:hover {
  background: var(--bg-accent);
}

.checkbox-item input[type="checkbox"] {
  cursor: pointer;
}

.checkbox-item span {
  font-size: 0.9em;
  color: var(--text-primary);
}

.empty-state {
  text-align: center;
  border: 1px dashed rgba(148, 163, 184, 0.24);
  border-radius: var(--radius-md);
  padding: 32px 18px;
  display: grid;
  gap: 10px;
  background: rgba(18, 22, 34, 0.46);
  color: var(--text-muted);
}

.empty-state strong {
  color: var(--text-primary);
  font-size: 1rem;
}

.summary {
  display: grid;
  gap: 10px;
  margin: 0;
}

.summary div {
  display: flex;
  justify-content: space-between;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  background: var(--bg-panel-elevated);
  border: 1px solid var(--border);
}

.summary dt {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.summary dd {
  margin: 0;
  font-weight: 600;
  color: var(--text-primary);
}

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

.list-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.16);
  color: var(--text-primary);
  font-size: 0.8rem;
}

.list-pill button {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.85rem;
}

.list-input {
  display: flex;
  gap: 8px;
  align-items: center;
}

.list-input input {
  flex: 1;
  background: rgba(12, 14, 22, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  color: var(--text-primary);
}

.list-input button {
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.2);
  background: rgba(34, 40, 56, 0.72);
  color: var(--text-secondary);
  padding: 7px 10px;
  cursor: pointer;
}

.list-input button:hover {
  color: white;
  border-color: rgba(124, 92, 255, 0.45);
}

select {
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.16);
  background: rgba(12, 14, 22, 0.85);
  color: var(--text-primary);
  padding: 10px 12px;
}

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

.helper-text {
  font-size: 0.78rem;
  color: var(--text-muted);
}

@media (max-width: 1260px) {
  .workspace {
    grid-template-columns: 280px minmax(0, 1fr) 340px;
  }
}

/* LiteGraph Node Text Overrides - Improve Readability */
.litegraph .litenode .node-title {
  font-size: 16px !important;
  font-weight: 600 !important;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8) !important;
  letter-spacing: 0.3px !important;
  padding: 4px 8px !important;
}

.litegraph .litenode .node-subtitle {
  font-size: 13px !important;
  font-weight: 500 !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7) !important;
  opacity: 0.95 !important;
}

.litegraph .litenode .node-slot {
  font-size: 13px !important;
  font-weight: 500 !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8) !important;
}

.litegraph .litenode .node-widget {
  font-size: 13px !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7) !important;
}

/* Increase contrast for node text */
.litegraph .litenode {
  color: #ffffff !important;
}

.litegraph .litenode .node-title {
  color: #ffffff !important;
}

/* Output Schema Table Styles */
.output-schema-table-container {
  margin-top: 8px;
}

.output-schema-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.output-schema-table thead {
  background: var(--bg-panel-elevated);
}

.output-schema-table th {
  padding: 8px 10px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.output-schema-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
}

.output-schema-table tbody tr:last-child td {
  border-bottom: none;
}

.output-schema-table tbody tr:hover {
  background: var(--bg-accent);
}

.output-schema-table input[type="text"],
.output-schema-table select {
  width: 100%;
  padding: 6px 8px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-mono);
}

.output-schema-table input[type="text"]:focus,
.output-schema-table select:focus {
  outline: none;
  border-color: var(--accent);
}

.output-schema-table input.input-error {
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

.field-name-input {
  font-family: var(--font-mono) !important;
}

.field-type-select {
  font-family: var(--font-mono) !important;
}

.field-desc-input {
  font-family: var(--font-sans) !important;
}

.btn-add-field {
  margin-top: 8px;
  padding: 6px 12px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-add-field:hover {
  background: var(--accent-strong);
}

.btn-remove-field {
  padding: 2px 8px;
  background: var(--danger);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: opacity 0.2s;
  line-height: 1;
}

.btn-remove-field:hover {
  opacity: 0.8;
}

/* Warning hints for descriptions */
.control-group small {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-muted);
}

.control-group small:has-text("⚠️") {
  color: var(--warning);
  font-weight: 500;
}

/* Router Values Table Styles */
.router-values-table-container {
  margin-top: 8px;
}

.router-values-helper {
  margin: 12px 0;
  padding: 12px;
  background: var(--bg-accent);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
  font-style: italic;
}

.router-values-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.router-values-table thead {
  background: var(--bg-panel-elevated);
}

.router-values-table th {
  padding: 8px 10px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.router-values-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
}

.router-values-table tbody tr:last-child td {
  border-bottom: none;
}

.router-values-table tbody tr:hover {
  background: var(--bg-accent);
}

.router-node-name {
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.router-desc-input {
  width: 100%;
  padding: 6px 8px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
}

.router-desc-input:focus {
  outline: none;
  border-color: var(--accent);
}

.router-desc-input.input-error {
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

/* ===== Toast Notifications ===== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 12000;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 500;
  min-width: 260px;
  max-width: 420px;
  animation: toastSlideIn 0.25s ease forwards;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.toast-exit {
  animation: toastSlideOut 0.2s ease forwards;
}

.toast-icon {
  font-size: 1.15rem;
  flex-shrink: 0;
}

.toast-message {
  flex: 1;
  line-height: 1.35;
}

.toast-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0 2px;
  flex-shrink: 0;
  line-height: 1;
}

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

.toast.toast-success {
  border-left: 3px solid var(--success);
}

.toast.toast-error {
  border-left: 3px solid var(--danger);
}

.toast.toast-warning {
  border-left: 3px solid var(--warning);
}

.toast.toast-info {
  border-left: 3px solid var(--accent);
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toastSlideOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(40px);
  }
}

/* ===== Dark-Mode Modals ===== */
.modal-generic-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(2, 6, 23, 0.82);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.modal-generic-overlay.visible {
  display: flex;
}

.modal-generic-panel {
  background: var(--bg-dark);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 28px 32px;
  max-width: 900px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 30px 80px rgba(2, 6, 23, 0.65);
}

.modal-generic-panel.modal-narrow {
  max-width: 800px;
}

.modal-generic-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--danger);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  display: grid;
  place-items: center;
  line-height: 1;
  transition: opacity 0.15s ease;
}

.modal-generic-close:hover {
  opacity: 0.85;
}

.modal-generic-panel h2 {
  margin-bottom: 20px;
  color: var(--accent-strong);
  font-size: 1.25rem;
}

.modal-code-block {
  background: var(--bg-panel);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-primary);
}

.modal-btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.modal-btn:hover {
  transform: translateY(-1px);
}

.modal-btn-primary {
  background: var(--accent);
  color: #fff;
}

.modal-btn-success {
  background: var(--success);
  color: #fff;
}

.modal-btn-ghost {
  background: var(--bg-panel-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.modal-btn-row {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

/* Tool Editor Modal - dark form fields */
.tool-editor-field {
  margin-bottom: 20px;
}

.tool-editor-field label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tool-editor-field input[type="text"],
.tool-editor-field textarea,
.tool-editor-field select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  color: var(--text-primary);
  font-size: 14px;
}

.tool-editor-field textarea {
  min-height: 60px;
  resize: vertical;
}

.tool-editor-field .mono-input {
  font-family: var(--font-mono);
  font-size: 13px;
}

.tool-editor-field .tall-input {
  min-height: 280px;
}

.tool-editor-field small {
  color: var(--text-muted);
  font-size: 0.78rem;
  display: block;
  margin-top: 4px;
}

.tool-editor-field .syntax-feedback {
  margin-top: 8px;
  padding: 10px;
  border-radius: var(--radius-sm);
  display: none;
  font-size: 0.85rem;
}

.tool-editor-field .syntax-feedback.valid {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
}

.tool-editor-field .syntax-feedback.invalid {
  display: block;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: var(--danger);
}

.argument-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
}

.argument-row input[type="text"],
.argument-row select {
  flex: 1;
  padding: 8px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  font-size: 13px;
  background: var(--bg-panel);
  color: var(--text-primary);
}

.argument-row input.arg-description {
  flex: 2;
}

.argument-row label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.argument-row .btn-remove-arg {
  padding: 6px 10px;
  background: var(--danger);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}

/* Bundle info dark-mode override */
#bundle-info {
  background: rgba(14, 165, 233, 0.1) !important;
  border-color: rgba(14, 165, 233, 0.3) !important;
}

#bundle-info p {
  color: var(--accent-highlight) !important;
}

#bundle-info a {
  color: var(--accent-strong) !important;
}

/* ===== Collapsible Sidebar Sections ===== */
.section-heading {
  cursor: pointer;
  user-select: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}

.section-heading h2 {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.section-chevron {
  font-size: 0.7rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.sidebar-section.collapsed .section-chevron {
  transform: rotate(-90deg);
}

.sidebar-section .section-body {
  transition: max-height 0.25s ease, opacity 0.2s ease;
  overflow: hidden;
}

.sidebar-section.collapsed .section-body {
  max-height: 0 !important;
  opacity: 0;
  margin-top: 0;
}

.section-heading p {
  width: 100%;
}

/* ===== Tool Registry (Dark Mode) ===== */
.tool-registry-item {
  padding: 10px 12px;
  margin-bottom: 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-panel-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
}

.tool-registry-item .tool-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.88rem;
}

.tool-registry-item .tool-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 3px;
  line-height: 1.35;
}

.tool-registry-item .tool-type-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 3px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tool-registry-item .tool-actions {
  display: flex;
  gap: 4px;
}

.tool-registry-item .btn-tool-action {
  padding: 3px 8px;
  font-size: 0.72rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  transition: opacity 0.15s ease;
}

.tool-registry-item .btn-tool-action:hover {
  opacity: 0.85;
}

.tool-registry-item .btn-tool-action.edit {
  background: var(--accent);
  color: #fff;
}

.tool-registry-item .btn-tool-action.delete {
  background: var(--danger);
  color: #fff;
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar,
  .inspector {
    display: none;
  }

  .canvas-footer {
    position: sticky;
    bottom: 0;
  }
}

/* ===== Inline-style replacements (moved from HTML) ===== */
#function-catalog {
  max-height: 300px;
  overflow-y: auto;
}

#new-tool-btn {
  margin-top: 0.5em;
}

.bundle-info-box {
  margin-top: 20px;
  padding: 15px;
  border-radius: 8px;
}

#tool-editor-modal {
  z-index: 10001;
}

#add-argument-btn {
  margin-top: 10px;
}

.validate-syntax-wrapper {
  margin-top: 8px;
}

.btn-validate-syntax {
  padding: 6px 12px;
  font-size: 13px;
}

#tool-implementation {
  margin-top: 10px;
}

.modal-btn-row--end {
  justify-content: flex-end;
}

/* ===== Tool drop-list (drag-only, no text input) ===== */
.tool-drop-hint {
  display: block;
  margin-top: 6px;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-style: italic;
}

/* ===== Inspector scroll feedback ===== */
.inspector {
  scrollbar-width: thin;
  scrollbar-color: var(--bg-panel-elevated) transparent;
  --scroll-shadow-size: 16px;
  background:
    linear-gradient(var(--bg-panel) 30%, transparent) center top,
    linear-gradient(transparent, var(--bg-panel) 70%) center bottom,
    radial-gradient(farthest-side at 50% 0, rgba(0, 0, 0, 0.25), transparent) center top,
    radial-gradient(farthest-side at 50% 100%, rgba(0, 0, 0, 0.25), transparent) center bottom;
  background-repeat: no-repeat;
  background-size:
    100% 40px,
    100% 40px,
    100% var(--scroll-shadow-size),
    100% var(--scroll-shadow-size);
  background-attachment: local, local, scroll, scroll;
}

.inspector::-webkit-scrollbar {
  width: 6px;
}

.inspector::-webkit-scrollbar-track {
  background: transparent;
}

.inspector::-webkit-scrollbar-thumb {
  background: var(--bg-panel-elevated);
  border-radius: 3px;
}

.inspector::-webkit-scrollbar-thumb:hover {
  background: var(--bg-accent-strong);
}

#node-properties {
  scrollbar-width: thin;
  scrollbar-color: var(--bg-panel-elevated) transparent;
}

#node-properties::-webkit-scrollbar {
  width: 5px;
}

#node-properties::-webkit-scrollbar-track {
  background: transparent;
}

#node-properties::-webkit-scrollbar-thumb {
  background: var(--bg-panel-elevated);
  border-radius: 3px;
}

#node-properties::-webkit-scrollbar-thumb:hover {
  background: var(--bg-accent-strong);
}