/* Canvas: pan/zoom surface, SVG edge layer, nodes, ports, live animation. */

.canvas {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background-color: var(--canvas-bg);
  background-image:
    radial-gradient(var(--canvas-grid) 1px, transparent 1px);
  background-size: var(--canvas-grid-size) var(--canvas-grid-size);
  cursor: default;
  touch-action: none;
  z-index: var(--z-canvas);
}
.canvas.is-panning { cursor: grabbing; }
.canvas.is-space { cursor: grab; }
.canvas.is-linking { cursor: crosshair; }

.canvas-world {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
  will-change: transform;
}

/* ---- Edge layer ---- */
.canvas-edges {
  position: absolute;
  top: 0;
  left: 0;
  max-width: none;
  overflow: visible;
  pointer-events: none;
  z-index: var(--z-edges);
}
.edge {
  fill: none;
  stroke: var(--edge-color);
  stroke-width: var(--edge-stroke);
  pointer-events: stroke;
  cursor: pointer;
  transition: stroke var(--t-base), stroke-width var(--t-base), opacity var(--t-base);
}
.edge.kind-records { stroke: var(--port-records); }
.edge.kind-cards { stroke: var(--port-cards); }
.edge.is-active { stroke-width: var(--edge-stroke-active); }
.edge.is-dim { opacity: 0.16; }
.edge.is-selected { stroke: var(--c-accent); stroke-width: var(--edge-stroke-active); }

.edge.is-flowing {
  stroke-dasharray: 5 6;
  animation: edge-flow var(--edge-flow-dur) linear infinite;
}
.edge.is-receiving-flow {
  stroke-width: var(--edge-stroke-active);
  stroke-dasharray: 9 8;
  animation: edge-card-arrive 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 0 5px color-mix(in srgb, var(--port-cards) 60%, transparent));
}
@keyframes edge-flow { to { stroke-dashoffset: -22; } }
@keyframes edge-card-arrive {
  0% { opacity: 0.35; stroke-dashoffset: 32; }
  35% { opacity: 1; stroke-dashoffset: 0; }
  100% { opacity: 0.9; stroke-dashoffset: -28; }
}

.edge-draft {
  fill: none;
  stroke: var(--c-accent);
  stroke-width: var(--edge-stroke-active);
  stroke-dasharray: 4 4;
  pointer-events: none;
}

.edge-packet {
  fill: var(--c-splash-blue);
  filter: drop-shadow(0 0 3px var(--c-splash-blue));
}

/* ---- Nodes ---- */
.node {
  position: absolute;
  width: var(--node-w);
  min-height: var(--node-min-h);
  background: var(--c-surface);
  border: var(--border-2);
  border-radius: var(--node-radius);
  box-shadow: var(--node-shadow);
  z-index: var(--z-nodes);
  user-select: none;
  transition: box-shadow var(--t-base), border-color var(--t-base);
  cursor: grab;
}
.node > * { position: relative; z-index: 1; }
.node:hover { box-shadow: var(--node-shadow-hover); }
.node.is-dragging { cursor: grabbing; box-shadow: var(--shadow-lg); }
.node.is-selected { border-color: var(--c-accent); box-shadow: var(--ring), var(--node-shadow); }

.node__head {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--node-pad);
  border-bottom: var(--border);
}
.node__icon {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-pill);
  color: #fff;
  flex: 0 0 auto;
}
.family-input  .node__icon { background: var(--c-splash-blue); }
.family-transform .node__icon { background: var(--c-splash-amber); }
.family-output .node__icon { background: var(--c-splash-green); }
.node__titles { min-width: 0; flex: 1 1 auto; }
.node__type { display: none;   font-size: var(--fs-2xs); color: var(--c-ink-3); text-transform: uppercase; letter-spacing: 0.04em; }
.node__name { font-size: var(--fs-normal); font-weight: var(--fw-semibold); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.node__runlight {
  width: 8px;
  height: 8px;
  border-radius: var(--r-pill);
  background: var(--run-idle);
  flex: 0 0 auto;
}
.node.run-running .node__runlight { background: var(--run-running); animation: pulse 1s ease-in-out infinite; }
.node.run-error .node__runlight { background: var(--run-error); }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.7); } }

.node.run-running { border-color: var(--c-line-2); }
.node.family-input.run-running::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background: linear-gradient(
    180deg,
    transparent 0%,
    color-mix(in srgb, var(--c-splash-blue) 22%, transparent) 48%,
    transparent 100%
  );
  background-size: 100% 220%;
  background-position: 0 -160%;
  animation: intake-sweep-down 1.55s ease-in-out infinite;
  pointer-events: none;
}
.node.family-transform.run-running {
  animation: analyzer-run-glow 1.35s ease-in-out infinite;
}
.node.family-transform.run-running::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    180deg,
    transparent 30%,
    color-mix(in srgb, var(--c-splash-amber) 22%, transparent) 50%,
    transparent 70%
  );
  background-size: 100% 220%;
  background-position: 0 160%;
  border-radius: inherit;
  animation: analyzer-sweep 1.8s ease-in-out infinite;
  pointer-events: none;
}
.node.family-transform.run-running .node__icon {
  animation: analyzer-icon-thrum 0.9s ease-in-out infinite;
}
.node.family-transform.run-running .node__runlight {
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--run-running) 18%, transparent), 0 0 14px var(--run-running);
}
.node.run-error { border-color: var(--run-error); }
.node.is-receiving { animation: node-flash 1.1s ease-out; }
.node.family-output.is-receiving {
  animation: board-receive-glow 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}
.node.family-output.is-receiving::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background: linear-gradient(
    180deg,
    transparent 0%,
    color-mix(in srgb, var(--port-cards) 22%, transparent) 48%,
    transparent 100%
  );
  background-size: 100% 220%;
  background-position: 0 160%;
  animation: board-sweep-down 1.1s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}
@keyframes node-flash {
  0% { box-shadow: 0 0 0 0 var(--flash-from); }
  100% { box-shadow: 0 0 0 14px var(--flash-to); }
}
@keyframes analyzer-run-glow {
  0%, 100% { box-shadow: var(--node-shadow), 0 0 0 0 color-mix(in srgb, var(--c-splash-amber) 22%, transparent); }
  50% { box-shadow: var(--node-shadow-hover), 0 0 0 6px color-mix(in srgb, var(--c-splash-amber) 12%, transparent); }
}
@keyframes intake-sweep-down {
  0% { background-position: 0 160%; opacity: 0; }
  22% { opacity: 1; }
  78% { opacity: 1; }
  100% { background-position: 0 -160%; opacity: 0; }
}
@keyframes analyzer-sweep {
  0% { background-position: 0 160%; opacity: 0; }
  28% { opacity: 1; }
  72% { opacity: 1; }
  100% { background-position: 0 -160%; opacity: 0; }
}
@keyframes analyzer-icon-thrum {
  0%, 100% { transform: scale(1); filter: saturate(1); }
  50% { transform: scale(1.08); filter: saturate(1.25); }
}
@keyframes board-receive-glow {
  0% { box-shadow: var(--node-shadow), 0 0 0 0 color-mix(in srgb, var(--port-cards) 34%, transparent); }
  34% { box-shadow: var(--node-shadow-hover), 0 0 0 10px color-mix(in srgb, var(--port-cards) 16%, transparent); }
  100% { box-shadow: var(--node-shadow), 0 0 0 18px transparent; }
}
@keyframes board-sweep-down {
  0% { background-position: 0 160%; opacity: 0; }
  18% { opacity: 1; }
  82% { opacity: 1; }
  100% { background-position: 0 -160%; opacity: 0; }
}

.node__body { padding: var(--node-pad); display: flex; flex-direction: column; gap: var(--sp-2); }
.node__meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px;
  padding: 1px;
  border-radius: var(--r-sm);
  /* background: var(--c-line); */
  overflow: hidden;
}
.node__meta-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-2);
  min-width: 0;
  padding: 5px 6px;
  border-radius: 15px;
    border: 1px solid var(--c-line);
  background: var(--c-surface);
}
.node__meta-row--empty { min-height: 25px; }
.node__meta-row.is-schedule {
  grid-column: 1 / -1;
  order: 20;
}
.node__meta-row.is-groups {
  grid-column: 1 / -1;
  align-items: flex-start;
  flex-direction: column;
}
.node__meta-label {
  display: inline-block;
  flex: 0 0 auto;
  color: var(--c-ink-3);
  font-size: 10px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.node__meta-value {
  display: inline-block;
  flex: 1 1 auto;
  min-width: 0;
  color: var(--c-ink-2);
  font-size: var(--fs-xs);
  font-weight: 400;
  overflow: hidden;
  width: 100%;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: right;
}
.node__meta-row.is-records .node__meta-value,
.node__meta-row.is-fields .node__meta-value { color: var(--port-records); }
.node__meta-row.is-cards .node__meta-value { color: var(--port-cards); }
.node__meta-row.is-live .node__meta-value { color: var(--c-splash-green); }
.node__meta-row.is-schedule .node__meta-value { color: var(--c-ink); }
.node__meta-groups {
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-width: 100%;
  align-items: stretch;
  gap: 3px;
  overflow: hidden;
  text-align: left;
}
.node__meta-group {
  display: grid;
  grid-template-columns: 6px minmax(0, 1fr) auto;
  min-width: 0;
  align-items: center;
  gap: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.node__meta-group-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
.node__meta-group-count {
  color: var(--c-ink-3);
  font-variant-numeric: tabular-nums;
}
.node__meta-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--group-color);
  flex: 0 0 auto;
}
.node__meta-more { color: var(--c-ink-3); flex: 0 0 auto; }
.node__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--sp-2);
  padding: 0 var(--node-pad) var(--node-pad);
}
.node__actions:has(.node__last-run) { justify-content: space-between; }
.node__last-run {
  min-width: 0;
  color: var(--c-ink-3);
  font-size: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.node__runbtn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  height: 26px;
  padding: 0 var(--sp-2);
  border-radius: var(--r-pill);
  border: var(--border);
  background: var(--c-surface-2);
  color: var(--c-ink-2);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
}
.node__runbtn:hover:not(:disabled) { background: var(--c-surface-hover); color: var(--c-ink); }
.node__runbtn:disabled { opacity: 0.55; cursor: wait; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 2px var(--sp-2);
  border-radius: var(--r-pill);
  font-size: var(--fs-2xs);
  font-weight: var(--fw-medium);
  background: var(--c-surface-2);
  color: var(--c-ink-2);
  border: var(--border);
}
.badge.is-records { color: var(--port-records); border-color: var(--port-records); }
.badge.is-cards { color: var(--port-cards); border-color: var(--port-cards); }
.badge.is-board-group {
  color: var(--c-ink);
  border-color: color-mix(in srgb, var(--group-color) 58%, var(--c-line-2));
  background: color-mix(in srgb, var(--group-color) 16%, var(--c-surface));
}
.badge.is-board-group::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--group-color);
}
.badge.is-live { color: var(--c-ink-inv); background: var(--c-splash-green); border-color: transparent; }
.node__meta { font-size: var(--fs-xs); color: var(--c-ink-3); }

/* ---- Ports ---- */
.port {
  position: absolute;
  width: var(--port-hit);
  height: var(--port-hit);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: crosshair;
  z-index: 1;
}
.port::after {
  content: "";
  width: var(--port-size);
  height: var(--port-size);
  border-radius: var(--r-pill);
  background: var(--c-surface);
  border: 2px solid var(--edge-color);
  transition: transform var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}
.port[data-kind="records"]::after { border-color: var(--port-records); }
.port[data-kind="cards"]::after { border-color: var(--port-cards); }
.port:hover::after { transform: scale(1.4); }
.port.is-target::after { background: var(--c-accent); border-color: var(--c-accent); transform: scale(1.5); }
.port.is-incompatible { cursor: not-allowed; }
.port.is-incompatible::after { border-color: var(--c-splash-red); }

.port--in { left: 50%; top: calc(var(--port-hit) / -2); transform: translateX(-50%); }
.port--out { left: 50%; bottom: calc(var(--port-hit) / -2); transform: translateX(-50%); }

/* ---- Zoom controls ---- */
.canvas-controls {
  position: absolute;
  right: var(--sp-4);
  bottom: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  background: var(--c-surface);
  border: var(--border);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-sm);
  padding: var(--sp-1);
  z-index: var(--z-nodes);
}
.canvas-controls .btn-icon { border: none; }

/* ---- Palette ---- */
.palette {
  position: absolute;
  left: 50%;
  top: var(--sp-4);
  transform: translateX(-50%);
  display: flex;
  gap: var(--sp-1);
  background: var(--c-surface);
  border: var(--border);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-sm);
  padding: var(--sp-1);
  z-index: var(--z-nodes);
}
.app-stage.has-dock-open .palette { display: none; }
.palette__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  height: 32px;
  padding: 0 var(--sp-3);
  border-radius: var(--r-pill);
  font-size: var(--fs-normal);
  font-weight: var(--fw-medium);
  color: var(--c-ink-2);
}
.palette__btn:hover { background: var(--c-surface-hover); color: var(--c-ink); }

/* ---- Workspace activity modal ---- */
.activity-modal__backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--c-scrim);
  z-index: var(--z-menu);
}
.activity-modal {
  width: min(720px, calc(100vw - var(--sp-8)));
  max-height: min(720px, calc(100vh - var(--sp-8)));
  background: var(--c-surface);
  border: var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.activity-modal > div { min-height: 0; display: flex; flex-direction: column; }
.activity-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-4);
  border-bottom: var(--border);
}
.activity-modal__title { font-size: var(--fs-md); font-weight: var(--fw-semibold); }
.activity-modal__sub { color: var(--c-ink-3); font-size: var(--fs-xs); }
.activity-modal__actions { display: flex; align-items: center; gap: var(--sp-2); }
.activity-modal__body { min-height: 0; padding: var(--sp-4); overflow: auto; overscroll-behavior: contain; }
.activity-empty, .activity-error { color: var(--c-ink-3); font-size: var(--fs-normal); padding: var(--sp-4); }
.activity-error { color: var(--c-splash-red); }
.activity-list { display: flex; flex-direction: column; }
.activity-item {
  padding: var(--sp-3) 0;
  border-bottom: var(--border);
}
.activity-item:last-child { border-bottom: none; }
.activity-item.is-error { border-left: 2px solid var(--c-splash-red); padding-left: var(--sp-3); }
.activity-item__head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); }
.activity-item__summary { font-size: var(--fs-normal); font-weight: var(--fw-medium); }
.activity-item__meta { color: var(--c-ink-3); font-size: var(--fs-xs); margin-top: 2px; }
.activity-item__detail {
  margin-top: var(--sp-2);
  color: var(--c-ink-2);
  font-size: var(--fs-sm);
  line-height: 1.45;
}

/* ---- Marquee selection ---- */
.marquee {
  position: absolute;
  border: 1px solid var(--c-accent);
  background: var(--c-accent-soft);
  pointer-events: none;
  z-index: var(--z-nodes);
}

/* ---- Ghost-node overlay (pending assistant graph proposal) ---- */
.canvas-ghosts {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: var(--z-edges);
}
.canvas-edges--ghost { z-index: var(--z-edges); }

.ghost-node {
  position: absolute;
  width: var(--node-w);
  min-height: var(--node-min-h);
  max-height: 320px;
  background: var(--c-surface);
  border: 1.5px dashed var(--c-splash-violet);
  border-radius: var(--node-radius);
  opacity: 0.85;
  overflow: hidden;
  animation: ghost-pulse 1.6s ease-in-out infinite;
}
@keyframes ghost-pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 0.95; }
}
.ghost-node__head {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--node-pad);
  border-bottom: 1px dashed var(--c-line-2);
}
.ghost-node__tag {
  padding: var(--sp-2) var(--node-pad);
  font-size: var(--fs-2xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-splash-violet);
  font-weight: var(--fw-semibold);
}
.ghost-node__body {
  max-height: 220px;
  overflow-y: auto;
  padding: 0 var(--node-pad) var(--node-pad);
  font-size: var(--fs-2xs);
  color: var(--c-ink-2);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.ghost-node__sub {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: var(--sp-2);
  border-top: 1px dashed var(--c-line-2);
}
.ghost-node__sub:first-child {
  border-top: 0;
  padding-top: 0;
}
.ghost-node__sub-title {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-ink-3);
  font-weight: var(--fw-semibold);
}
.ghost-node__kv {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  row-gap: 2px;
  column-gap: var(--sp-2);
}
.ghost-node__kv-row { display: contents; }
.ghost-node__kv-key {
  color: var(--c-ink-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  align-self: start;
  padding-top: 1px;
}
.ghost-node__kv-value {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  min-width: 0;
  color: var(--c-ink-2);
}
.ghost-node__kv-diff-old {
  color: var(--c-ink-3);
  text-decoration: line-through;
  margin-right: 4px;
}
.ghost-node__kv-diff-arrow {
  color: var(--c-ink-3);
  margin-right: 4px;
}
.ghost-node__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  min-width: 0;
}
.ghost-node__chip {
  background: var(--c-surface-2);
  border: 1px solid var(--c-line-2);
  border-radius: var(--r-xs);
  padding: 1px 5px;
  font-size: var(--fs-2xs);
  color: var(--c-ink-2);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ghost-node__section {
  font-weight: var(--fw-semibold);
  color: var(--c-ink-2);
  font-size: var(--fs-2xs);
  margin-top: var(--sp-1);
}
.ghost-node__field {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr) auto;
  gap: var(--sp-1);
  align-items: baseline;
  padding: 1px 0;
}
.ghost-node__field-icon {
  color: var(--c-ink-3);
  display: inline-flex;
  align-items: center;
}
.ghost-node__field-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--c-ink);
}
.ghost-node__field-req {
  color: var(--c-splash-amber);
  font-weight: var(--fw-semibold);
  margin-left: 2px;
}
.ghost-node__field-type {
  color: var(--c-ink-3);
  font-size: 9px;
  text-transform: lowercase;
  font-variant-numeric: tabular-nums;
}

.ghost-edge {
  fill: none;
  stroke: var(--c-splash-violet);
  stroke-width: var(--edge-stroke);
  stroke-dasharray: 5 5;
  opacity: 0.7;
  animation: edge-flow var(--edge-flow-dur) linear infinite;
}