/* ============================================================
   Formula Modal — institutional theme
   Mirrors the mapping modal panel layout and item styles.
   ============================================================ */

/* ─── Formula input ──────────────────────────────────────── */
#formulaModal .modal-dialog {
  width: min(88vw, 1480px);
  max-width: 88vw;
  margin: 1.1rem auto;
}

#formulaModal .modal-content {
  min-height: min(86vh, 980px);
  max-height: calc(100vh - 2.2rem);
  display: flex;
  overflow: hidden;
}

#formulaModal .modal-body {
  overflow: auto;
}

#formulaInput {
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border: 1px solid var(--app-border, #d7e0d8);
  background: #fff;
}

#formulaInput:focus {
  border-color: var(--app-green-800, #217152);
  box-shadow: 0 0 0 0.2rem rgba(33, 113, 82, 0.12);
}

#formulaInput::placeholder {
  color: var(--app-text-muted, #5b6b7a);
  opacity: 0.7;
}

/* ─── Validation status ──────────────────────────────────── */
#formulaStatus .formula-valid {
  color: var(--app-green-800, #217152);
  font-weight: 500;
}

#formulaStatus .formula-error {
  color: #a5311e;
  font-weight: 500;
}

/* ─── Autocomplete dropdown ──────────────────────────────── */
.formula-autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1055;
  max-height: 260px;
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--app-border, #d7e0d8);
  border-top: none;
  border-radius: 0 0 0.375rem 0.375rem;
  box-shadow: 0 6px 16px rgba(2, 6, 23, 0.10);
}

.formula-autocomplete-dropdown .formula-ac-group {
  padding: 0.4rem 0.75rem 0.25rem;
  font-family: var(--app-font-body, sans-serif);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--app-text-muted, #5b6b7a);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(20, 83, 45, 0.04);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.formula-autocomplete-dropdown .formula-ac-item {
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.85rem;
  color: var(--app-text, #0b1b22);
  transition: background 0.1s, color 0.1s;
}

.formula-autocomplete-dropdown .formula-ac-item:hover,
.formula-autocomplete-dropdown .formula-ac-item.active {
  background: var(--app-green-800, #217152);
  color: #fff;
}

/* ─── Variable list ──────────────────────────────────────── */
#formulaVarListItems .list-group-item {
  font-family: var(--app-font-body, sans-serif);
  font-size: 0.85rem;
  padding: 0.45rem 0.75rem;
  border-color: var(--app-border, #d7e0d8);
}

#formulaVarListItems .list-group-item code {
  color: var(--app-green-900, #1b5b43);
  font-weight: 600;
  font-size: 0.82rem;
}

.formula-var-badge {
  font-weight: 500 !important;
  font-size: 0.68rem !important;
  padding: 0.2em 0.55em !important;
  background: rgba(20, 83, 45, 0.08) !important;
  color: var(--app-text-muted, #5b6b7a) !important;
  border: 1px solid var(--app-border, #d7e0d8) !important;
  border-radius: 0.25rem !important;
}

/* ─── jsPlumb mapping workspace ──────────────────────────── */
/* Mirrors #mappingModal .mapping-workspace                    */
.formula-mapping-workspace {
  display: flex;
  align-items: stretch;
  flex-wrap: nowrap;
  gap: 20px;
  min-height: 420px;
  position: relative;
  overflow-x: hidden;
  overflow-y: visible;
  padding-bottom: 0.35rem;
  scrollbar-gutter: stable both-edges;
  z-index: 0;
}

/* ─── Panels (same as #mappingModal .panel) ──────────────── */
.formula-panel {
  flex: 1 1 0;
  min-width: 0;
  padding: 15px;
  background: #ffffff;
  border: 1px solid rgba(34, 197, 94, 0.35);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
}

/* ─── Panel header (same as #mappingModal .panel-header) ──── */
.formula-panel-header {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 12px;
  color: #166534;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
  position: relative;
  z-index: 5;
  background: #ffffff;
}

.formula-panel-header i {
  color: var(--app-green-600, #2f8a64);
}

.formula-panel-title {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.formula-panel-action {
  line-height: 1;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  flex: 0 0 auto;
}

#formulaLinkSelectedToAll,
#formulaLinkAllToSelected {
  min-width: 34px;
  color: var(--app-green-900, #1b5b43);
  border-color: rgba(33, 113, 82, 0.58);
  background: #fff;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

#formulaLinkSelectedToAll i,
#formulaLinkAllToSelected i {
  color: inherit;
}

#formulaLinkSelectedToAll[data-mode="disconnect"],
#formulaLinkAllToSelected[data-mode="disconnect"] {
  color: #8a1f2a;
  border-color: rgba(138, 31, 42, 0.5);
  background: #fff;
}

#formulaLinkSelectedToAll:hover:not(:disabled),
#formulaLinkSelectedToAll:focus-visible:not(:disabled),
#formulaLinkSelectedToAll:active:not(:disabled),
#formulaLinkAllToSelected:hover:not(:disabled),
#formulaLinkAllToSelected:focus-visible:not(:disabled),
#formulaLinkAllToSelected:active:not(:disabled) {
  color: #fff !important;
  background: var(--app-green-800, #217152) !important;
  border-color: var(--app-green-800, #217152) !important;
  box-shadow: 0 0 0 0.15rem rgba(33, 113, 82, 0.18) !important;
}

#formulaLinkSelectedToAll:hover:not(:disabled) i,
#formulaLinkSelectedToAll:focus-visible:not(:disabled) i,
#formulaLinkSelectedToAll:active:not(:disabled) i,
#formulaLinkAllToSelected:hover:not(:disabled) i,
#formulaLinkAllToSelected:focus-visible:not(:disabled) i,
#formulaLinkAllToSelected:active:not(:disabled) i {
  color: #fff !important;
}

#formulaLinkSelectedToAll[data-mode="disconnect"]:hover:not(:disabled),
#formulaLinkSelectedToAll[data-mode="disconnect"]:focus-visible:not(:disabled),
#formulaLinkSelectedToAll[data-mode="disconnect"]:active:not(:disabled),
#formulaLinkAllToSelected[data-mode="disconnect"]:hover:not(:disabled),
#formulaLinkAllToSelected[data-mode="disconnect"]:focus-visible:not(:disabled),
#formulaLinkAllToSelected[data-mode="disconnect"]:active:not(:disabled) {
  color: #fff !important;
  background: #8a1f2a !important;
  border-color: #8a1f2a !important;
  box-shadow: 0 0 0 0.15rem rgba(138, 31, 42, 0.2) !important;
}

#formulaLinkSelectedToAll:disabled,
#formulaLinkAllToSelected:disabled {
  opacity: 0.55;
  color: #799486;
  border-color: rgba(121, 148, 134, 0.45);
  background: #f7fbf8;
}

.formula-order-select {
  min-width: 140px;
}

.formula-panel-tools {
  margin-bottom: 10px;
  position: relative;
  z-index: 5;
  background: #ffffff;
}

.formula-search .input-group-text {
  background: #f7faf8;
  border-color: var(--app-border, #d7e0d8);
  color: var(--app-text-muted, #5b6b7a);
}

.formula-search input.form-control {
  border-color: var(--app-border, #d7e0d8);
  font-size: 0.8rem;
}

.formula-search .btn {
  border-color: var(--app-border, #d7e0d8);
}

/* ─── Middle arrow panel (same as #middle-panel) ─────────── */
.formula-middle-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 52px;
  min-width: 52px;
  border: 1px dashed rgba(34, 197, 94, 0.35);
  border-radius: 12px;
  padding: 12px 7px;
  background-color: rgba(34, 197, 94, 0.06);
}

.formula-arrows-icon {
  font-size: 1.5rem;
  color: var(--app-green-600, #2f8a64);
}

/* ─── Items list ─────────────────────────────────────────── */
.formula-panel-items {
  flex: 0 0 auto;
  list-style: none;
  padding: 0;
  margin: 0;
  overflow: visible;
}

/* ─── Mapping items (same as #mappingModal .item) ────────── */
.formula-mapping-item {
  margin: 6px 0;
  padding: 10px 10px;
  background: #ffffff;
  border: 1px solid #ced4da;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  font-family: var(--app-font-body, sans-serif);
  font-size: 0.88rem;
  color: var(--app-text, #0b1b22);
  cursor: default;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.formula-mapping-item.is-dragging {
  opacity: 0.55;
}

.formula-mapping-item.is-filtered-out {
  opacity: 0.35;
}

.formula-order-auto .formula-drag-handle {
  opacity: 0.35;
  pointer-events: none;
}

.formula-item-editable .formula-item-label {
  cursor: text;
}

.formula-item-input {
  font-size: 0.85rem;
  padding: 0.15rem 0.35rem;
}

.formula-drag-handle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 6px;
  border: 1px solid var(--app-border, #d7e0d8);
  background: #f7faf8;
  color: var(--app-text-muted, #5b6b7a);
  cursor: grab;
  font-size: 0.7rem;
  flex: 0 0 auto;
}

.formula-drag-handle:active {
  cursor: grabbing;
}

.formula-item-label {
  flex: 1 1 auto;
  min-width: 0;
  word-break: break-word;
}

.formula-delete-btn {
  border: none;
  background: transparent;
  color: #a5311e;
  padding: 0.1rem 0.25rem;
  line-height: 1;
}

.formula-delete-btn:hover {
  color: #7f1d1d;
}

.formula-mapping-item:hover {
  border-color: rgba(22, 163, 74, 0.65);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.12);
}

.formula-mapping-item.formula-bulk-selected,
.formula-mapping-item.formula-target-selected {
  border-color: rgba(33, 113, 82, 0.8);
  background: linear-gradient(180deg, rgba(33, 113, 82, 0.08) 0%, rgba(33, 113, 82, 0.03) 100%);
  box-shadow: 0 0 0 3px rgba(33, 113, 82, 0.15);
}

/* ─── jsPlumb endpoint styling ───────────────────────────── */
.formula-mapping-workspace .jtk-endpoint {
  cursor: pointer;
  z-index: 4;
}

.formula-mapping-workspace .formula-endpoint {
  box-shadow: 0 6px 16px rgba(16, 24, 40, 0.18);
}

.formula-mapping-workspace .jtk-connector {
  cursor: pointer;
  z-index: 3;
}

/* ─── Loading / empty states ─────────────────────────────── */
.formula-loading {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 2rem 0;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--app-text-muted, #5b6b7a);
}

.formula-loading .spinner-border {
  color: var(--app-green-800, #217152);
  width: 1rem;
  height: 1rem;
  border-width: 0.15em;
}

.formula-no-values {
  text-align: center;
  padding: 2.5rem 0.5rem;
  font-size: 0.85rem;
  color: var(--app-text-muted, #5b6b7a);
  font-style: italic;
}

.formula-mapping-empty {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.85rem;
  color: var(--app-text-muted, #5b6b7a);
  background: rgba(34, 197, 94, 0.06);
  border: 1px dashed rgba(34, 197, 94, 0.35);
  border-radius: 12px;
}

/* ─── n8n-style node flow ────────────────────────────────── */
.formula-flow {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 1rem 0.5rem 1.25rem;
  overflow-x: auto;
  justify-content: center;
  scroll-behavior: smooth;
}

.formula-flow-node {
  flex: 0 0 auto;
  padding: 0.55rem 1.05rem;
  border: 2px solid rgba(183, 198, 188, 0.95);
  border-radius: 12px;
  background: linear-gradient(180deg, #ffffff 0%, #f6fbf8 100%);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.81rem;
  font-weight: 600;
  color: var(--app-text, #0b1b22);
  white-space: nowrap;
  transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
  user-select: none;
  box-shadow: 0 4px 12px rgba(14, 52, 33, 0.06);
  max-width: clamp(190px, 34vw, 460px);
  overflow: hidden;
  text-overflow: ellipsis;
}

.formula-flow-node.active {
  border-color: var(--app-green-800, #217152);
  background: linear-gradient(180deg, rgba(33, 113, 82, 0.13) 0%, rgba(33, 113, 82, 0.06) 100%);
  box-shadow: 0 0 0 3px rgba(33, 113, 82, 0.10), 0 8px 18px rgba(20, 84, 60, 0.14);
  color: var(--app-green-900, #1b5b43);
  transform: translateY(-1px);
}

.formula-flow-edge {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  width: 82px;
  min-width: 82px;
  height: 62px;
  padding: 0 0.2rem;
  cursor: pointer;
  position: relative;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.formula-flow-edge:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

.formula-flow-edge-line {
  width: 100%;
  height: 2px;
  background: var(--app-border, #d7e0d8);
  position: relative;
  margin-top: 27px;
  transition: background 0.24s ease;
}

/* Arrow head */
.formula-flow-edge-line::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 7px solid var(--app-border, #d7e0d8);
  transition: border-left-color 0.2s;
}

.formula-flow-edge-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 20px;
  padding: 0 0.45rem;
  border-radius: 999px;
  background: #f2f5f3;
  border: 1px solid rgba(160, 178, 167, 0.95);
  color: #4a6156;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  position: absolute;
  top: 0;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.formula-flow-edge-step {
  margin-top: 9px;
  font-size: 0.65rem;
  color: #9aa8a0;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: color 0.2s ease;
}

.formula-flow-edge.active .formula-flow-edge-line {
  background: var(--app-green-800, #217152);
}

.formula-flow-edge.active .formula-flow-edge-line::after {
  border-left-color: var(--app-green-800, #217152);
}

.formula-flow-edge.active .formula-flow-edge-label {
  background: linear-gradient(135deg, #217152 0%, #2a865f 100%);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 10px rgba(33, 113, 82, 0.3);
}

.formula-flow-edge.active .formula-flow-edge-step {
  color: var(--app-green-900, #1b5b43);
}

/* ─── Toggle mapping button ─────────────────────────────── */
#formulaToggleMapping {
  font-size: 0.78rem;
  padding: 0.2rem 0.75rem;
  color: var(--app-text-muted, #5b6b7a);
  border-color: var(--app-border, #d7e0d8);
}

#formulaToggleMapping:hover {
  color: var(--app-green-900, #1b5b43);
  border-color: var(--app-green-800, #217152);
  background: rgba(33, 113, 82, 0.04);
}

/* ─── Mapping title ──────────────────────────────────────── */
#formulaMappingTitle {
  font-family: var(--app-font-display, serif);
  font-weight: 700;
  color: var(--app-green-900, #1b5b43);
  font-size: 0.95rem;
  flex: 1 1 320px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.formula-step-toolbar {
  row-gap: 0.55rem;
}

.formula-step-toolbar .ms-auto {
  max-width: 100%;
}

#formulaModal .formula-modal-header {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0.6rem;
}

#formulaModal .formula-modal-header .app-modal-title {
  flex: 1 1 auto;
  min-width: 0;
}

#formulaModal .formula-header-primary-actions {
  margin-left: auto;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  flex: 0 0 auto;
}

#formulaModal .formula-header-primary-actions .btn {
  white-space: nowrap;
  font-weight: 600;
  font-size: 0.78rem;
  line-height: 1.1;
}

#formulaModal .formula-header-primary-actions .formula-primary-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  min-height: 34px;
}

#formulaModal .formula-header-primary-actions .formula-primary-btn i {
  font-size: 0.86rem;
}

#formulaModal .formula-header-primary-actions .btn-light {
  background: rgba(255, 255, 255, 0.96);
  color: var(--app-green-900, #1b5b43);
  border-color: rgba(255, 255, 255, 0.96);
}

#formulaModal .formula-header-primary-actions .btn-light:hover:not(:disabled) {
  background: #fff;
  color: #154937;
  border-color: #fff;
}

#formulaModal .formula-header-primary-actions .btn-outline-light:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.82);
}

#formulaModal .formula-header-primary-actions .btn:disabled {
  opacity: 0.68;
}

#formulaModal .formula-modal-header .btn-close {
  margin: 0 0 0 0.35rem;
  flex: 0 0 auto;
}

/* ─── Modal header badge ─────────────────────────────────── */
#formulaMeasureId {
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(255, 255, 255, 0.92) !important;
  color: var(--app-green-900, #1b5b43) !important;
  padding: 0.25em 0.65em;
  border-radius: 0.25rem;
}

/* ─── Footer buttons ─────────────────────────────────────── */
/* ─── Aggregate select badge for FORMULA ─────────────────── */
.aggregate-formula-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 0.25rem;
  background: var(--app-green-900, #1b5b43);
  color: #fff;
  cursor: pointer;
  user-select: none;
  letter-spacing: 0.02em;
}

.aggregate-formula-badge:hover {
  background: var(--app-green-800, #217152);
}

@media (max-width: 1200px) {
  #formulaModal .modal-dialog {
    width: 92vw;
    max-width: 92vw;
    margin: 0.9rem auto;
  }

  #formulaModal .modal-content {
    max-height: calc(100vh - 1.8rem);
  }

  #formulaModal .formula-header-primary-actions .formula-btn-label {
    display: none;
  }

  #formulaModal .formula-header-primary-actions .formula-primary-btn {
    width: 34px;
    justify-content: center;
    padding-left: 0.45rem;
    padding-right: 0.45rem;
    gap: 0;
  }
}

@media (max-width: 992px) {
  #formulaModal .modal-dialog {
    width: 96vw;
    max-width: 96vw;
    margin: 0.5rem auto;
  }

  #formulaModal .modal-content {
    min-height: calc(100vh - 1rem);
    max-height: calc(100vh - 1rem);
  }

  .formula-step-toolbar .ms-auto {
    width: 100%;
    justify-content: flex-start;
  }

  #formulaModal .formula-modal-header {
    flex-wrap: wrap;
  }

  .formula-mapping-workspace {
    gap: 12px;
    min-height: 360px;
    overflow-x: hidden;
    overflow-y: visible;
  }

  .formula-panel {
    min-width: 0;
    padding: 12px;
  }

  .formula-middle-panel {
    display: none;
  }

  .formula-flow-node {
    max-width: clamp(150px, 56vw, 320px);
    font-size: 0.78rem;
  }

  .formula-flow-edge {
    width: 72px;
    min-width: 72px;
  }

  #formulaMappingTitle {
    flex-basis: 100%;
    max-width: 100%;
  }

  #formulaModal .formula-header-primary-actions {
    order: 3;
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  #formulaModal .formula-header-primary-actions .formula-btn-label {
    display: inline;
  }

  #formulaModal .formula-header-primary-actions .formula-primary-btn {
    width: auto;
    padding-left: 0.7rem;
    padding-right: 0.7rem;
    gap: 0.35rem;
  }

  #formulaModal .formula-modal-header .btn-close {
    order: 2;
    margin: 0 0 0 auto;
  }
}

@media (max-width: 768px) {
  #formulaModal .modal-dialog {
    width: 100vw;
    max-width: 100vw;
    margin: 0;
  }

  #formulaModal .modal-content {
    min-height: 100vh;
    max-height: 100vh;
    border-radius: 0;
  }

  .formula-mapping-workspace {
    display: block;
    min-height: auto;
    overflow: visible;
    padding-bottom: 0;
  }

  .formula-panel {
    width: 100%;
    margin-bottom: 10px;
  }

  .formula-panel:last-child {
    margin-bottom: 0;
  }
}

/* ============================================================
   Formula modal visual refinement (non-breaking overrides)
   ============================================================ */
#formulaModal .modal-content {
  border: 1px solid rgba(34, 197, 94, 0.22);
  box-shadow: 0 20px 48px rgba(16, 24, 40, 0.18);
  background: linear-gradient(180deg, #f8fcfa 0%, #f3faf6 100%);
}

#formulaModal .modal-body {
  background-image:
    linear-gradient(to right, rgba(33, 113, 82, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(33, 113, 82, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
}

#formulaStep1 {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1rem 1.2rem 1.2rem;
  border: 1px solid rgba(33, 113, 82, 0.22);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 26px rgba(18, 75, 55, 0.08);
  backdrop-filter: blur(2px);
}

#formulaStep1 .form-label {
  letter-spacing: 0.01em;
  color: #1b5b43;
}

#formulaStatus {
  min-height: 1.4rem;
}

#formulaVarList {
  margin-top: 1rem !important;
  border-top: 1px dashed rgba(33, 113, 82, 0.26);
  padding-top: 0.85rem;
}

#formulaStep2 {
  padding-top: 0.25rem;
}

#formulaFlow {
  margin: 0 0 0.9rem;
  padding: 0.95rem 0.55rem 1rem;
  border: 1px solid rgba(33, 113, 82, 0.2);
  border-radius: 14px;
  background:
    radial-gradient(circle at 18% 18%, rgba(42, 134, 95, 0.09), transparent 42%),
    radial-gradient(circle at 85% 70%, rgba(33, 113, 82, 0.08), transparent 38%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(245, 251, 247, 0.95));
}

#formulaActiveStep {
  position: relative;
  isolation: isolate;
  border: 1px solid rgba(33, 113, 82, 0.2);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.93);
  box-shadow: 0 10px 24px rgba(16, 24, 40, 0.08);
  padding: 0.9rem 0.95rem 0.95rem;
}

.formula-step-toolbar {
  position: sticky;
  top: 0;
  z-index: 12;
  margin: -0.1rem -0.1rem 0.75rem !important;
  padding: 0.55rem 0.65rem;
  border-radius: 12px;
  border: 1px solid rgba(33, 113, 82, 0.18);
  background: #fafefb;
  backdrop-filter: none;
  box-shadow: 0 8px 18px rgba(16, 24, 40, 0.08);
}

#formulaMappingTitle {
  font-size: 1.02rem;
}

.formula-order-select {
  min-width: 156px;
  border-color: rgba(33, 113, 82, 0.3);
}

#formulaToggleMapping {
  border-color: rgba(33, 113, 82, 0.3);
  background: #fff;
}

.formula-mapping-workspace {
  gap: 15px;
  min-height: 440px;
  padding: 0.35rem;
  border-radius: 12px;
  background: rgba(33, 113, 82, 0.03);
}

.formula-panel {
  border-color: rgba(33, 113, 82, 0.28);
  border-radius: 14px;
  box-shadow: 0 8px 22px rgba(16, 24, 40, 0.07);
}

.formula-panel-header {
  padding-bottom: 0.55rem;
  margin-bottom: 0.7rem;
  border-bottom: 1px solid rgba(33, 113, 82, 0.16);
}

.formula-panel-title {
  font-size: 0.99rem;
}

.formula-panel-action {
  min-width: 34px;
  min-height: 34px;
  padding: 0.2rem 0.5rem;
}

.formula-panel-tools {
  margin-bottom: 0.75rem;
}

.formula-search .form-control,
.formula-search .btn,
.formula-search .input-group-text {
  border-color: rgba(33, 113, 82, 0.24);
}

.formula-panel-items {
  max-height: min(48vh, 460px);
  overflow-y: auto;
  overflow-x: visible;
  padding-right: 2px;
}

.formula-mapping-item {
  border-color: rgba(174, 187, 178, 0.9);
  background: linear-gradient(180deg, #ffffff 0%, #fbfdfc 100%);
  min-height: 50px;
}

.formula-mapping-item:hover {
  border-color: rgba(33, 113, 82, 0.58);
  box-shadow: 0 0 0 3px rgba(33, 113, 82, 0.1);
}

.formula-middle-panel {
  width: 58px;
  min-width: 58px;
  border-style: solid;
  border-color: rgba(33, 113, 82, 0.2);
  background: linear-gradient(180deg, rgba(33, 113, 82, 0.08), rgba(33, 113, 82, 0.04));
}

.formula-flow-node {
  padding: 0.6rem 1.1rem;
  border-radius: 13px;
  max-width: clamp(180px, 31vw, 430px);
}

.formula-flow-edge {
  width: 88px;
  min-width: 88px;
}

.formula-flow-edge-step {
  font-size: 0.68rem;
}

@media (max-width: 992px) {
  #formulaStep1 {
    padding: 0.85rem 0.9rem 1rem;
  }

  #formulaActiveStep {
    padding: 0.75rem 0.75rem 0.85rem;
  }

  .formula-step-toolbar {
    margin-left: 0;
    margin-right: 0;
  }

  .formula-mapping-workspace {
    min-height: 390px;
    padding: 0.2rem;
  }

  .formula-panel-items {
    max-height: min(52vh, 500px);
  }
}

@media (max-width: 768px) {
  #formulaModal .modal-body {
    background-size: 30px 30px;
  }

  #formulaStep1 {
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    box-shadow: none;
    padding-left: 0.65rem;
    padding-right: 0.65rem;
  }

  #formulaFlow {
    border-radius: 11px;
    padding: 0.75rem 0.35rem 0.8rem;
  }

  #formulaActiveStep {
    border-radius: 11px;
    padding: 0.65rem 0.6rem 0.75rem;
  }

  .formula-step-toolbar {
    position: static;
    padding: 0.4rem 0.45rem;
  }

  .formula-panel {
    border-radius: 12px;
  }

  .formula-panel-items {
    max-height: none;
    overflow: visible;
  }
}