:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f1f5f9;
  --surface-alt: #f1f5f9;
  --text: #16202f;
  --muted: #5f6c80;
  --line: #dce4ee;
  --primary: #1f537d;
  --primary-contrast: #ffffff;
  --shadow: 0 2px 4px rgba(31, 83, 125, 0.32);
  --card-bg: #f1f5f9;
  --card-border: rgba(255, 255, 255, 0.55);
  --switch-bg: #eef3f9;
  --panel-soft-bg: #f1f5f9;
  --message-user-bg: #e5e7eb;
  --message-user-text: #1f2937;
  --message-system-text: #475569;
  --editor-bg: #f1f5f9;
  --readonly-bg: #f1f5f9;
  --auth-bg:
    radial-gradient(circle at top left, rgba(31, 83, 125, 0.12), transparent 34%),
    linear-gradient(180deg, #f6f9fc 0%, #edf3f8 100%);
  --auth-card-bg: rgba(255, 255, 255, 0.92);
  --auth-card-border: rgba(31, 83, 125, 0.14);
  --auth-card-shadow: 0 18px 50px rgba(31, 83, 125, 0.12);
  --auth-message-bg: #eef3f9;
  --auth-message-text: #1f3d5a;
  --danger-text: #7a2430;
  --canvas-bg: linear-gradient(180deg, rgba(236, 242, 248, 0.85), rgba(244, 248, 252, 0.95));
  --overlay-bg: rgba(16, 30, 48, 0.72);
  --status-bg: rgba(15, 23, 35, 0.72);
  --modal-shadow: 0 26px 60px rgba(6, 21, 39, 0.32);
  --issue-line: rgba(245, 158, 11, 0.5);
  --issue-bg: linear-gradient(180deg, rgba(255, 247, 237, 0.95), rgba(255, 251, 235, 0.9));
  --issue-ring: 0 0 0 3px rgba(245, 158, 11, 0.14);
  --issue-surface: #fffdf7;
  --issue-text: #9a3412;
  --success-bg: #dff5e9;
  --success-border: #76c893;
  --success-text: #14532d;
  --canvas-empty-text: #4f6278;
  --canvas-edge: #3f6e95;
  --canvas-edge-label: #294966;
  --canvas-grid: rgba(20, 50, 80, 0.08);
  --canvas-group-bg: rgba(232, 241, 249, 0.72);
  --canvas-group-header-bg: rgba(213, 229, 242, 0.78);
  --canvas-group-stroke: #8da9c2;
  --canvas-group-active-stroke: #1f537d;
  --canvas-group-text: #18334d;
  --canvas-node-bg: #ffffff;
  --canvas-node-active-bg: #e8f4f3;
  --canvas-node-issue-bg: #fff7ed;
  --canvas-node-stroke: #b7c5d6;
  --canvas-node-issue-stroke: #f59e0b;
  --canvas-node-text: #12233a;
  --canvas-node-muted: #607186;
  --canvas-issue: #f59e0b;
  --canvas-issue-text: #ffffff;
  --canvas-in-port: #1f5d8d;
  --canvas-out-port: #0f766e;
  --canvas-port-label: #4c6079;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #14181b;
  --surface: #1d2428;
  --surface-alt: #1d2428;
  --text: #e8eef7;
  --muted: #a2adbd;
  --line: #2d3a49;
  --primary: #62a9dc;
  --primary-contrast: #07111b;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.46);
  --card-bg: #1d2428;
  --card-border: rgba(138, 160, 184, 0.22);
  --switch-bg: #0f1722;
  --panel-soft-bg: #1d2428;
  --message-user-bg: #253344;
  --message-user-text: #eef5ff;
  --message-system-text: #b1bfce;
  --editor-bg: #1d2428;
  --readonly-bg: #1d2428;
  --auth-bg:
    radial-gradient(circle at top left, rgba(98, 169, 220, 0.18), transparent 34%),
    linear-gradient(180deg, #0c121a 0%, #121b26 100%);
  --auth-card-bg: rgba(20, 27, 37, 0.94);
  --auth-card-border: rgba(138, 160, 184, 0.24);
  --auth-card-shadow: 0 18px 50px rgba(0, 0, 0, 0.42);
  --auth-message-bg: #172538;
  --auth-message-text: #cde7ff;
  --danger-text: #ff9aa5;
  --canvas-bg: linear-gradient(180deg, rgba(14, 21, 31, 0.95), rgba(17, 26, 37, 0.98));
  --overlay-bg: rgba(5, 10, 17, 0.82);
  --status-bg: rgba(5, 10, 17, 0.82);
  --modal-shadow: 0 26px 60px rgba(0, 0, 0, 0.58);
  --issue-line: rgba(251, 191, 36, 0.58);
  --issue-bg: linear-gradient(180deg, rgba(60, 40, 13, 0.94), rgba(45, 35, 17, 0.9));
  --issue-ring: 0 0 0 3px rgba(251, 191, 36, 0.18);
  --issue-surface: #2b2113;
  --issue-text: #fcd38a;
  --success-bg: #143323;
  --success-border: #2f9b61;
  --success-text: #b9f6cf;
  --canvas-empty-text: #aab8c8;
  --canvas-edge: #74a9d7;
  --canvas-edge-label: #c8def3;
  --canvas-grid: rgba(162, 190, 220, 0.09);
  --canvas-group-bg: rgba(28, 39, 54, 0.72);
  --canvas-group-header-bg: rgba(40, 57, 77, 0.78);
  --canvas-group-stroke: #637991;
  --canvas-group-active-stroke: #62a9dc;
  --canvas-group-text: #e4eef8;
  --canvas-node-bg: #17202c;
  --canvas-node-active-bg: #17383d;
  --canvas-node-issue-bg: #35250f;
  --canvas-node-stroke: #53657a;
  --canvas-node-issue-stroke: #fbbf24;
  --canvas-node-text: #edf5ff;
  --canvas-node-muted: #a5b4c7;
  --canvas-issue: #fbbf24;
  --canvas-issue-text: #1c1304;
  --canvas-in-port: #60a5fa;
  --canvas-out-port: #2dd4bf;
  --canvas-port-label: #b5c5d8;
}

* {
  box-sizing: border-box;
}

html {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  height: 100%;
  min-height: 100%;
  overflow: hidden;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background: var(--bg);
}

[hidden] {
  display: none !important;
}

.auth-gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--auth-bg);
}

.auth-card {
  width: min(560px, 100%);
  padding: 28px;
  border-radius: 24px;
  background: var(--auth-card-bg);
  border: 1px solid var(--auth-card-border);
  box-shadow: var(--auth-card-shadow);
}

.auth-card h1 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 2.3rem);
  line-height: 1.05;
}

.auth-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.auth-message {
  margin-top: 16px !important;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--auth-message-bg);
  color: var(--auth-message-text) !important;
  font-weight: 600;
}

.auth-detail {
  margin-top: 12px !important;
  font-size: 0.95rem;
  color: var(--danger-text) !important;
}

.workspace {
  width: min(2200px, 98vw);
  margin: 24px auto;
  display: grid;
  grid-template-columns: 400px minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
  height: calc(100vh - 48px);
  min-height: 0;
}

.workspace.is-chat-only {
  width: min(900px, calc(100vw - 48px));
  min-height: calc(100vh - 48px);
  grid-template-columns: minmax(0, 860px);
  place-content: center;
  align-items: stretch;
}

.workspace.is-chat-only .app-shell {
  display: none;
}

.workspace.is-chat-only .ai-panel {
  position: static;
  height: auto;
  max-height: none;
  min-height: min(720px, calc(100vh - 64px));
  padding: 18px;
  grid-template-rows: auto auto minmax(260px, 1fr) auto;
}

.workspace.is-chat-only .ai-messages {
  min-height: min(46vh, 420px);
  max-height: min(58vh, 560px);
}

.workspace.is-chat-only .ai-compose textarea {
  min-height: 128px;
}

.workspace.is-chat-only .ai-compose button:not(.ai-send-button) {
  justify-self: end;
  min-width: 180px;
}

.workspace.is-chat-only.is-ai-prompt-only {
  width: min(720px, calc(100vw - 48px));
  align-items: center;
}

.workspace.is-chat-only.is-ai-prompt-only .ai-panel {
  height: auto;
  min-height: 0;
  padding: 0;
  display: block;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.workspace.is-chat-only.is-ai-prompt-only .ai-header,
.workspace.is-chat-only.is-ai-prompt-only .ai-messages,
.workspace.is-chat-only.is-ai-prompt-only .ai-compose label {
  display: none;
}

.workspace.is-chat-only.is-ai-prompt-only .ai-compose {
  display: grid;
  gap: 10px;
}

.workspace.is-chat-only.is-ai-prompt-only .ai-panel-top {
  margin-bottom: 10px;
}

.workspace.is-chat-only.is-ai-prompt-only .ai-compose textarea {
  min-height: 128px;
  padding: 16px;
  resize: vertical;
}

.workspace.is-chat-only.is-ai-prompt-only .ai-compose .dev-system-prompt {
  min-height: 88px;
}

.workspace.is-chat-only.is-ai-prompt-only .ai-compose button:not(.ai-send-button) {
  justify-self: end;
  min-width: 180px;
}

.ai-panel {
  position: sticky;
  top: 18px;
  padding: 14px;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 12px;
  height: calc(100vh - 48px);
  max-height: calc(100vh - 48px);
  overflow: hidden;
}

.ai-panel-top {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  min-width: 0;
}

.workspace:not(.is-chat-only) .ai-panel {
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.workspace:not(.is-chat-only) .ai-panel-top {
  display: none;
}

.app-version {
  position: fixed;
  right: 12px;
  bottom: 10px;
  z-index: 20;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1;
  opacity: 0.74;
  pointer-events: none;
  white-space: nowrap;
}

.ai-header h2 {
  margin: 0;
  font-size: 1rem;
}

.ai-header p {
  margin: 6px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.ai-messages {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel-soft-bg);
  min-height: 0;
  max-height: none;
  overflow: auto;
  padding: 10px;
  display: grid;
  gap: 8px;
  align-content: start;
  align-items: start;
}

.ai-msg {
  width: fit-content;
  max-width: 100%;
  align-self: start;
  justify-self: start;
  font-size: 0.84rem;
  line-height: 1.35;
  padding: 8px 10px;
  border-radius: 10px;
  white-space: pre-wrap;
}

.ai-msg.user {
  justify-self: end;
  background: var(--message-user-bg);
  color: var(--message-user-text);
}

.ai-msg.assistant {
  background: transparent;
  border: none;
  padding: 0;
  border-radius: 0;
}

.ai-msg.system {
  background: transparent;
  border: none;
  padding: 0;
  border-radius: 0;
  color: var(--message-system-text);
}

.ai-loading {
  width: max-content;
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.ai-loading-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: currentColor;
  color: var(--muted);
  opacity: 0.42;
  animation: aiTypingPulse 1s ease-in-out infinite;
}

.ai-loading-dot:nth-child(2) {
  animation-delay: 0.14s;
}

.ai-loading-dot:nth-child(3) {
  animation-delay: 0.28s;
}

@keyframes aiTypingPulse {
  0%,
  80%,
  100% {
    transform: translateY(0);
    opacity: 0.34;
  }

  40% {
    transform: translateY(-3px);
    opacity: 0.86;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ai-loading-dot {
    animation: none;
  }
}

.ai-compose {
  display: grid;
  gap: 8px;
}

.ai-compose-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.ai-compose-actions > button:not(.ai-send-button) {
  min-width: 150px;
}

.ai-send-button {
  width: 42px;
  min-width: 42px;
  min-height: 42px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  justify-self: end;
  border-radius: 999px;
}

.ai-send-button svg {
  width: 20px;
  height: 20px;
  display: block;
  fill: currentColor;
}

.app-shell {
  width: 100%;
  min-width: 0;
  min-height: 0;
  height: 100%;
  margin: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 18px;
}

.card {
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.controls {
  display: grid;
  gap: 12px;
  padding: 10px 12px;
  grid-template-columns: 1fr;
}

.control-group {
  display: grid;
  gap: 8px;
}

.project-editor {
  grid-template-columns: minmax(260px, 1fr) minmax(128px, 42ch) auto auto auto;
  align-items: end;
  gap: 10px;
}

.project-title-field,
.project-id-field {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.field-label {
  font-size: 0.84rem;
  color: var(--muted);
  font-weight: 600;
}

.project-id-row {
  position: relative;
  min-width: 0;
}

.project-context {
  min-width: 0;
  max-width: 100%;
  min-height: 42px;
  display: block;
  padding: 10px 50px 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel-soft-bg);
  color: var(--text);
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.project-copy-button {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 34px;
  height: 34px;
  min-width: 0;
  min-height: 0;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 9px;
  background: var(--surface);
  color: var(--text);
}

.project-copy-button:not(:disabled):hover {
  transform: none;
  border-color: var(--line);
  color: var(--primary);
}

.copy-project-id-icon {
  position: relative;
  display: block;
  width: 15px;
  height: 15px;
}

.copy-project-id-icon::before,
.copy-project-id-icon::after {
  content: "";
  position: absolute;
  width: 9px;
  height: 10px;
  border: 1.7px solid currentColor;
  border-radius: 2px;
}

.copy-project-id-icon::before {
  top: 1px;
  left: 1px;
  opacity: 0.6;
}

.copy-project-id-icon::after {
  right: 1px;
  bottom: 1px;
  background: var(--surface);
}

.control-group > button {
  justify-self: start;
  width: 25%;
  min-width: 120px;
}

.project-editor > button {
  width: auto;
  min-width: 120px;
  min-height: 42px;
}

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

.control-actions > button {
  width: 25%;
  min-width: 120px;
}

label {
  font-size: 0.84rem;
  color: var(--muted);
  font-weight: 600;
}

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

input[type="url"],
input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 8px 12px;
  font-size: 0.9rem;
  line-height: 1.2;
  min-height: 36px;
  background: var(--primary);
  color: var(--primary-contrast);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.16s ease;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
}

::placeholder {
  color: var(--muted);
  opacity: 0.78;
}

button:not(:disabled):hover {
  transform: translateY(-1px);
}

.secondary-button {
  background: var(--panel-soft-bg);
  color: var(--text);
  border: 1px solid var(--line);
}

.validate-project-button.is-validated {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
  opacity: 1;
}

.ai-reset-button {
  min-width: 120px;
}

.schema-panel {
  padding: 0;
  display: block;
  overflow: hidden;
}

.schema-summary {
  padding: 12px 14px;
  cursor: pointer;
  color: var(--text);
  font-weight: 700;
}

.schema-panel[open] .schema-summary {
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.schema-tabs {
  display: inline-flex;
  width: fit-content;
  max-width: calc(100% - 28px);
  flex-wrap: wrap;
  margin: 0 14px 12px;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--switch-bg);
}

.schema-tab {
  min-height: 34px;
  padding: 7px 14px;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
}

.schema-tab.is-active {
  background: var(--primary);
  color: var(--primary-contrast);
}

.schema-pane {
  display: none;
  margin: 0 14px 14px;
}

.schema-pane.is-active {
  display: block;
}

.schema-meta {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

#jsonStructureEditor {
  width: 100%;
  min-height: 260px;
  max-height: 45vh;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--editor-bg);
  padding: 12px;
  font-size: 0.82rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  resize: vertical;
}

#descriptionEditor {
  width: 100%;
  min-height: 260px;
  max-height: 45vh;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--readonly-bg);
  padding: 12px;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text);
  resize: vertical;
}

#descriptionEditor[readonly] {
  color: var(--text);
}

#credentialsEditor {
  width: 100%;
  min-height: 260px;
  max-height: 45vh;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--readonly-bg);
  padding: 12px;
  font-size: 0.82rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--text);
  resize: vertical;
}


.canvas-wrap {
  position: relative;
  padding: 12px;
  min-height: 0;
  overflow: auto;
}

.zoom-controls {
  position: absolute;
  right: 18px;
  top: 18px;
  z-index: 2;
  display: flex;
  gap: 8px;
  align-items: center;
  background: var(--overlay-bg);
  color: #fff;
  border-radius: 999px;
  padding: 7px 10px;
}

.zoom-controls button {
  background: var(--primary);
  color: var(--primary-contrast);
  border-radius: 999px;
  padding: 4px 9px;
  min-width: 32px;
  min-height: 30px;
  font-size: 0.82rem;
}

#zoomLabel {
  font-size: 0.8rem;
  min-width: 48px;
  text-align: right;
  font-weight: 700;
}

#flowCanvas {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 14px;
  background: var(--canvas-bg);
}

.status {
  position: absolute;
  left: 24px;
  bottom: 20px;
  background: var(--status-bg);
  color: #fff;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
}

.node-modal {
  width: min(560px, 92vw);
  border: none;
  border-radius: 16px;
  padding: 0;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--modal-shadow);
}

.node-modal::backdrop,
.ai-question-dialog::backdrop {
  background: rgba(6, 21, 39, 0.46);
}

#nodeForm {
  padding: 16px;
}

.ai-question-dialog {
  width: min(620px, 92vw);
  border: none;
  border-radius: 16px;
  padding: 0;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--modal-shadow);
}

#aiQuestionForm {
  padding: 16px;
}

.ai-question-dialog .modal-actions {
  gap: 12px;
}

.ai-question-list {
  display: grid;
  gap: 12px;
  max-height: min(56vh, 520px);
  overflow: auto;
  padding-right: 2px;
}

.ai-question-context {
  max-height: min(28vh, 220px);
  overflow: auto;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel-soft-bg);
  color: var(--text);
  font-size: 0.86rem;
  line-height: 1.42;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.ai-question-card {
  min-width: 0;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel-soft-bg);
}

.ai-question-card legend {
  padding: 0 4px;
  color: var(--text);
  font-weight: 700;
  line-height: 1.35;
}

.ai-question-progress {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.ai-question-choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
  gap: 8px;
  margin-top: 10px;
}

.ai-question-choice {
  position: relative;
  min-width: 0;
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 0.88rem;
  line-height: 1.28;
}

.ai-question-choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.ai-question-choice span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.ai-question-other-choice {
  grid-column: 1 / -1;
  width: fit-content;
  max-width: 100%;
}

.ai-question-choice:has(input:focus-visible) {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.ai-question-choice:has(input:checked) {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--primary-contrast);
}

.ai-question-custom-input {
  margin-top: 10px;
  min-height: 86px;
  resize: vertical;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.icon-btn {
  background: var(--primary);
  color: var(--primary-contrast);
  padding: 4px 8px;
  min-height: 30px;
  min-width: 30px;
  font-size: 0.82rem;
}

.meta {
  margin: 8px 0 14px;
  color: var(--muted);
  font-size: 0.88rem;
}

.params-grid {
  display: grid;
  gap: 10px;
  max-height: 45vh;
  overflow: auto;
}

.param-section {
  display: grid;
  gap: 8px;
}

.param-section + .param-section {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.param-section-title {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: uppercase;
}

.param-section-fields {
  display: grid;
  gap: 10px;
}

.param-nested-fields {
  display: grid;
  gap: 8px;
  margin-left: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

.param-leaf-item {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.param-nested-group {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.param-nested-group-label .field-label-main {
  color: var(--muted);
  font-weight: 700;
}

.param-nested-toggle {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1.25;
  transition: none;
}

.param-nested-toggle:not(:disabled):hover {
  color: var(--text);
  transform: none;
}

.param-collapse-icon {
  position: relative;
  display: inline-block;
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
}

.param-collapse-icon::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 0;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
}

.param-nested-toggle.is-collapsed .param-collapse-icon::before {
  left: 0;
  transform: rotate(-45deg);
}

.param-item {
  display: grid;
  gap: 6px;
}

.param-item.is-composite {
  gap: 8px;
}

.param-item.is-composite > label .field-label-main {
  font-weight: 700;
}

.param-item textarea {
  min-height: 92px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  resize: vertical;
}

.param-item label {
  display: inline-flex;
  align-items: flex-start;
  gap: 7px;
  min-width: 0;
}

.field-label-text {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.field-label-main,
.field-label-detail {
  min-width: 0;
  overflow-wrap: anywhere;
}

.field-label-detail {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.3;
}

.param-item.has-issue {
  padding: 10px 12px;
  border: 1px solid var(--issue-line);
  border-radius: 14px;
  background: var(--issue-bg);
}

.field-input-issue {
  border-color: var(--canvas-node-issue-stroke) !important;
  box-shadow: var(--issue-ring);
  background: var(--issue-surface) !important;
}

.param-issue-text {
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--issue-text);
}

.secret-lock-icon {
  display: inline-block;
  flex: 0 0 auto;
  line-height: 1;
  opacity: 0.9;
}

.modal-actions {
  margin-top: 16px;
  display: flex;
  justify-content: flex-end;
}

@media (max-width: 860px) {
  html,
  body {
    height: auto;
    min-height: 100%;
    overflow: auto;
  }

  .workspace {
    grid-template-columns: 1fr;
    height: auto;
    min-height: calc(100vh - 48px);
  }

  .workspace.is-chat-only {
    width: calc(100vw - 24px);
    min-height: calc(100vh - 24px);
    margin: 12px auto;
  }

  .workspace.is-chat-only .ai-panel {
    min-height: calc(100vh - 24px);
  }

  .workspace.is-chat-only .ai-messages {
    max-height: none;
  }

  .ai-panel {
    position: static;
    height: auto;
    max-height: none;
  }

  .controls {
    grid-template-columns: 1fr;
  }

  .project-editor {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .control-actions > button,
  .control-group > button {
    width: auto;
  }

  #flowCanvas {
    height: 65vh;
  }
}