/* ==========================================================================
   diagrams.css — node-graph presentation. The chrome around the graph lives in
   blocks.css (.diagram*); everything inside the canvas is here.
   ========================================================================== */

.dg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
  background:
    radial-gradient(120% 120% at 50% 0%, rgba(255,255,255,0.035), transparent 60%),
    repeating-linear-gradient(0deg,   transparent 0 31px, rgba(255,255,255,0.028) 31px 32px),
    repeating-linear-gradient(90deg,  transparent 0 31px, rgba(255,255,255,0.028) 31px 32px);
}
.dg[data-panning="true"] { cursor: grabbing; }

/* Edge fades signal that a deep pipeline continues past the frame. */
.dg[data-overflow="true"]::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(6,10,20,0.92) 0, transparent 5%, transparent 95%, rgba(6,10,20,0.92) 100%);
}

.dg-plane { position: absolute; top: 0; left: 0; transform-origin: 0 0; }

/* --- Edges ------------------------------------------------------------ */
.dg-edges { position: absolute; top: 0; left: 0; overflow: visible; pointer-events: none; }
.dg-edge {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  opacity: 0.34;
  transition: opacity var(--dur-2) var(--ease-out), stroke-width var(--dur-2) var(--ease-out);
}
.dg-edge[data-on="true"]  { opacity: 1; stroke-width: 2.4; }
.dg-edge[data-dim="true"] { opacity: 0.08; }

/* --- Nodes ------------------------------------------------------------ */
.dg-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 3px;
  box-sizing: border-box;
  min-height: 92px;
  padding: 11px 13px;
  border-radius: var(--r-sm);
  border: 1px solid color-mix(in oklab, var(--dg-color) 42%, transparent);
  background: linear-gradient(180deg, rgba(16,24,44,0.94), rgba(9,14,28,0.94));
  box-shadow: 0 6px 20px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.10);
  cursor: grab;
  outline: none;
  transition: border-color var(--dur-2) var(--ease-out),
              box-shadow var(--dur-2) var(--ease-out),
              opacity var(--dur-2) var(--ease-out),
              transform var(--dur-1) var(--ease-out);
}
.dg-node::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  border-radius: var(--r-sm) 0 0 var(--r-sm);
  background: var(--dg-color);
}
.dg-node:hover, .dg-node:focus-visible {
  border-color: var(--dg-color);
  box-shadow: 0 0 0 1px var(--dg-color), 0 12px 34px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.14);
}
.dg-node[data-dragging="true"] { cursor: grabbing; transform: scale(1.02); z-index: 5; }
.dg-node[data-dim="true"] { opacity: 0.26; }

.dg-node__kind {
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dg-color);
}
.dg-node__label {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.25;
  color: var(--fg-1);
}
.dg-node__meta { font-size: 10.5px; line-height: 1.35; color: var(--fg-3); }
.dg-node__src {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.04em;
  color: var(--fg-4);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Ports ------------------------------------------------------------ */
.dg-port {
  position: absolute;
  top: 50%;
  width: 9px; height: 9px;
  margin-top: -4.5px;
  border-radius: 50%;
  background: var(--night-950);
  border: 1.5px solid var(--dg-color);
}
.dg-port--in  { left: -5px; }
.dg-port--out { right: -5px; background: var(--dg-color); }

@media (max-width: 720px) {
  .dg-node__src { display: none; }
}