.llm-node {
  position: relative;
  width: 280px;
  user-select: none;
  -webkit-user-select: none;
  border-radius: 16px;
  border: 1px solid #dbe2ea;
  background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
  overflow: visible;
  color: #0f172a;
}

.llm-delete-overlay {
  position: absolute;
  inset: 0;
  z-index: 135;
  border-radius: 16px;
  background: rgba(148, 163, 184, 0.38);
  backdrop-filter: grayscale(1) saturate(0.2);
}

.llm-loading-overlay {
  position: absolute;
  inset: 0;
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(248, 250, 252, 0.68);
  backdrop-filter: blur(2px);
  border-radius: 16px;
}

.llm-loading-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  color: #1d4ed8;
  font-size: 12px;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.16);
}

.llm-spinner {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 2px solid rgba(37, 99, 235, 0.2);
  border-top-color: #2563eb;
  animation: llm-spin 0.75s linear infinite;
}

@keyframes llm-spin {
  to {
    transform: rotate(360deg);
  }
}

.llm-node--human {
  border-color: #f7d7a7;
  background: linear-gradient(180deg, #fffdf9 0%, #fff7ed 100%);
  box-shadow: 0 10px 24px rgba(124, 45, 18, 0.14);
  color: #431407;
}

.llm-node-error {
  border: 2px solid #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2), 0 10px 24px rgba(15, 23, 42, 0.12);
}

.llm-node-warning {
  border: 2px solid #eab308;
  box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.22), 0 10px 24px rgba(15, 23, 42, 0.12);
}

.llm-error-alert-wrap {
  position: absolute;
  top: -12px;
  right: -12px;
  z-index: 120;
}

.llm-error-alert {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid #fecaca;
  background: #dc2626;
  color: #fff7ed;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  box-shadow: 0 0 0 3px rgba(127, 29, 29, 0.2);
}

.llm-error-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  max-width: 320px;
  border: 1px solid #fecaca;
  border-radius: 8px;
  background: #fff1f2;
  color: #7f1d1d;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.2);
  padding: 8px;
  z-index: 130;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-2px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
}

.llm-error-alert-wrap:hover .llm-error-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.llm-error-title {
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 4px;
}

.llm-error-item {
  font-size: 11px;
  line-height: 1.3;
}

.llm-warning-alert-wrap {
  position: absolute;
  top: -12px;
  left: -12px;
  z-index: 120;
}

.llm-warning-alert {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid #fde68a;
  background: #eab308;
  color: #422006;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  box-shadow: 0 0 0 3px rgba(202, 138, 4, 0.22);
}

.llm-warning-list-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  max-width: 320px;
  border: 1px solid #fde68a;
  border-radius: 8px;
  background: #fef9c3;
  color: #713f12;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.2);
  padding: 8px;
  z-index: 130;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-2px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
}

.llm-warning-alert-wrap:hover .llm-warning-list-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.llm-warning-list-title {
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 4px;
}

.llm-warning-list-item {
  font-size: 11px;
  line-height: 1.3;
}

.llm-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid #e8edf4;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
}

.llm-node--human .llm-header {
  background: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
  border-bottom-color: #fdba74;
}

.llm-node--human .llm-icon {
  color: #fffbeb;
}

.llm-node--human .llm-title {
  color: #fffbeb;
}

.llm-node--human .llm-subtitle {
  color: #fff7ed;
}

.llm-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.llm-icon-image {
  width: 24px;
  height: 16px;
  object-fit: contain;
}

.llm-header-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.llm-subtitle-row {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.llm-header-actions {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative;
}

.llm-delete-confirm {
  position: absolute;
  top: calc(100% + 8px);
  right: 32px;
  z-index: 145;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid #fca5a5;
  border-radius: 10px;
  background: linear-gradient(180deg, #fff1f2 0%, #ffe4e6 100%);
  color: #881337;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
  white-space: nowrap;
  filter: none;
}

.llm-delete-confirm-text {
  font-size: 11px;
  font-weight: 700;
}

.llm-delete-confirm-cancel,
.llm-delete-confirm-action {
  border: 0;
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}

.llm-delete-confirm-cancel {
  background: rgba(255, 255, 255, 0.88);
  color: #7f1d1d;
  border: 1px solid #fecaca;
}

.llm-delete-confirm-action {
  background: #dc2626;
  color: #fff7ed;
}

.llm-delete-btn {
  position: relative;
  z-index: 146;
}

.llm-warning {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid #fecaca;
  background: #dc2626;
  color: #fff7ed;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  box-shadow: 0 0 0 2px rgba(127, 29, 29, 0.18);
}

.llm-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #eff6ff;
}

.llm-subtitle {
  font-size: 11px;
  color: #dbeafe;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.llm-name-edit-btn {
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: #eff6ff;
  border-radius: 999px;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color 0.15s ease;
}

.llm-name-edit-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

.llm-warning-wrap {
  position: relative;
  margin-left: 0;
}

.llm-delete-btn {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid rgba(185, 28, 28, 0.45);
  background: rgba(127, 29, 29, 0.2);
  color: #fff1f2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.llm-delete-btn:hover {
  background: rgba(127, 29, 29, 0.35);
}

.llm-warning-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  max-width: 240px;
  border: 1px solid #fecaca;
  border-radius: 8px;
  background: #fff1f2;
  color: #7f1d1d;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.2);
  padding: 8px;
  z-index: 80;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-2px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
}

.llm-warning-wrap:hover .llm-warning-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.llm-warning-title {
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 4px;
}

.llm-warning-item {
  font-size: 11px;
}


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

.llm-column {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.llm-column-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #64748b;
}

.llm-column-title-right {
  text-align: right;
}

.llm-row {
  display: grid;
  align-items: center;
  height: 24px;
  min-width: 0;
}

.llm-row-input {
  grid-template-columns: 16px 1fr;
  gap: 6px;
}

.llm-row-output {
  grid-template-columns: 1fr 16px;
  gap: 6px;
}

.llm-socket {
  position: relative;
  z-index: 20;
}

.llm-socket-right {
  justify-self: end;
}

.llm-pill {
  height: 24px;
  border-radius: 7px;
  border: 1px solid transparent;
  font-size: 11px;
  font-weight: 600;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.llm-pill-input {
  justify-content: flex-start;
  color: #166534;
  background: #ecfdf3;
  border-color: #bbf7d0;
  gap: 4px;
  overflow: visible;
}

.llm-node--human .llm-pill-input {
  color: #7c2d12;
  background: #ffedd5;
  border-color: #fed7aa;
}

.llm-node--human .llm-pill-output {
  color: #9f1239;
  background: #fff1f2;
  border-color: #fecdd3;
}

.llm-pill-output {
  justify-content: flex-end;
  color: #9f1239;
  background: #fff1f2;
  border-color: #fecdd3;
}

.llm-pill-output-true {
  color: #166534;
  background: #ecfdf3;
  border-color: #bbf7d0;
}

.llm-pill-output-false {
  color: #9f1239;
  background: #fff1f2;
  border-color: #fecdd3;
}

.llm-input-info {
  border: none;
  background: transparent;
  color: #166534;
  width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: help;
  flex-shrink: 0;
}

.llm-input-info-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.llm-input-tooltip {
  position: absolute;
  left: calc(100% + 6px);
  top: 50%;
  transform: translateY(-50%);
  min-width: 140px;
  max-width: 260px;
  border: 1px solid #dbeafe;
  border-radius: 8px;
  background: #ffffff;
  color: #0f172a;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.18);
  font-size: 11px;
  line-height: 1.3;
  padding: 6px 8px;
  white-space: pre-wrap;
  word-break: break-word;
  z-index: 80;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.llm-input-info-wrap:hover .llm-input-tooltip,
.llm-input-info-wrap:focus-within .llm-input-tooltip {
  opacity: 1;
  visibility: visible;
}

.llm-params {
  margin: 0 12px 12px;
  padding: 10px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  background: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.llm-params-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.llm-params-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #475569;
}

.llm-param-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.llm-param-groups {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.llm-param-fieldset {
  margin: 0;
  padding: 8px;
  border: 1px solid #cbd5e1;
  border-radius: 0;
  background: transparent;
}

.llm-param-legend {
  margin: 0;
  padding: 0 4px;
  font-size: 10px;
  font-weight: 700;
  color: #475569;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  display: table;
  max-width: 100%;
  white-space: nowrap;
  float: none;
  width: auto;
  margin-bottom: 0;
}

.llm-params-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.llm-params-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: #64748b;
  font-weight: 700;
}

.llm-param-chip {
  border: 1px solid #dbeafe;
  background: #eff6ff;
  border-radius: 8px;
  padding: 6px 8px;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.llm-param-chip-wide {
  grid-column: 1 / -1;
}

.llm-param-row-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.llm-edit-btn {
  border: none;
  background: transparent;
  color: #64748b;
  border-radius: 999px;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.15s ease, background-color 0.15s ease, transform 0.15s ease;
}

.llm-edit-btn:hover {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.1);
  transform: translateY(-1px);
}

.llm-edit-btn:active {
  transform: translateY(0);
}

.llm-param-block {
  border: 1px solid #dbe2ea;
  background: #ffffff;
  border-radius: 8px;
  padding: 8px;
}

.llm-param-text {
  font-size: 11px;
  color: #1e293b;
  white-space: pre-wrap;
  word-break: break-word;
  margin-top: 4px;
  line-height: 1.45;
}

.llm-inline-token {
  display: inline-flex;
  align-items: center;
  padding: 0 6px;
  min-height: 18px;
  margin: 0 2px;
  border-radius: 6px;
  border: 1px solid #bbf7d0;
  background: #ecfdf3;
  color: #166534;
  font-size: 10px;
  font-weight: 600;
}

.llm-param-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.llm-param-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  border: 1px solid #dbe2ea;
  background: #ffffff;
  border-radius: 8px;
  padding: 6px 8px;
}

.llm-param-key {
  font-size: 10px;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  flex-shrink: 0;
}

.llm-param-key-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: normal;
  line-height: 1.15;
}

.llm-param-value {
  font-size: 11px;
  color: #0f172a;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.llm-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.llm-modal {
  width: min(360px, calc(100vw - 24px));
  border-radius: 12px;
  border: 1px solid #dbe2ea;
  background: #ffffff;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.25);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.llm-modal-title {
  font-size: 13px;
  font-weight: 700;
  color: #0f172a;
}

.llm-modal-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.llm-modal-field label {
  font-size: 11px;
  font-weight: 600;
  color: #475569;
}

.llm-modal-field input,
.llm-modal-field select,
.llm-modal-field textarea {
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 12px;
  color: #0f172a;
  padding: 7px 8px;
  resize: vertical;
}

.node-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  background: #fff;
  color: #0f172a;
  padding: 6px 10px;
  cursor: pointer;
  width: fit-content;
}

.node-toggle-track {
  position: relative;
  width: 34px;
  height: 20px;
  border-radius: 999px;
  background: #cbd5e1;
  transition: background-color 0.2s ease;
}

.node-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.2);
  transition: transform 0.2s ease;
}

.node-toggle-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: lowercase;
}

.node-toggle-on .node-toggle-track {
  background: #2563eb;
}

.node-toggle-on .node-toggle-thumb {
  transform: translateX(14px);
}

.llm-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.llm-btn {
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
}

.llm-btn-ghost {
  border-color: #cbd5e1;
  color: #475569;
  background: #ffffff;
}

.llm-btn-primary {
  background: #2563eb;
  color: #ffffff;
}