/* Loops: widening and narrowing */

:where(.scene-td) .td-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.2fr) minmax(0, 0.6fr) minmax(0, 0.9fr);
  gap: 16px;
}

@media (max-width: 1280px) {
  :where(.scene-td) .td-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

:where(.scene-td) .td-cfg svg {
  max-width: 300px;
  margin-inline: auto;
  font-family: var(--mono);
}

:where(.scene-td) .td-edges line,
:where(.scene-td) .td-edges path {
  fill: none;
  stroke: var(--text-muted);
  stroke-width: 1.6;
}

:where(.scene-td) .td-edge-labels text {
  fill: var(--text-muted) !important;
  font-size: 11px !important;
}

:where(.scene-td) .td-layout > div {
  padding: 14px 16px;
  background: var(--surface-muted);
  border-radius: var(--radius);
}

:where(.scene-td) .td-panel-title + .td-chips {
  margin-bottom: 14px;
}

:where(.scene-td) .td-eq {
  margin: 0 0 6px;
  padding: 6px 10px;
  color: var(--text);
  border-left: 3px solid transparent;
  border-radius: 6px;
  font: 0.9rem / 1.5 var(--mono);
  transition:
    background 250ms ease,
    border-color 250ms ease;
}

:where(.scene-td) .td-eq span {
  display: block;
  color: var(--text-faint);
  font-family: Inter, ui-sans-serif, sans-serif;
  font-size: 0.74rem;
}

:where(.scene-td) .td-eq.is-current {
  background: var(--surface);
  border-left-color: var(--accent);
  box-shadow: var(--shadow);
}

:where(.scene-td) .td-sigma table {
  width: 100%;
  font-family: var(--mono);
}

:where(.scene-td) .td-sigma th,
:where(.scene-td) .td-sigma td {
  padding: 8px 10px;
  background: transparent;
  border: 0;
  font-size: 0.95rem;
}

:where(.scene-td) .td-sigma th {
  width: 2.5em;
  color: var(--primary);
}

:where(.scene-td) .td-sigma td {
  color: var(--text);
  font-weight: 700;
}

:where(.scene-td) .td-sigma tr.changed td {
  animation: value-flash 900ms ease;
}

@keyframes value-flash {
  0% {
    background: rgb(215 102 66 / 0.3);
  }
  100% {
    background: transparent;
  }
}

:where(.scene-td) .td-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 30px;
}

/* A one-letter chip should read as a circle with the letter in the middle.
   As an inline box its vertical padding does not sit around the line box, so
   the glyph rode about 3px high; flex centring places it by the box instead. */
:where(.scene-td) .td-chips span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 30px;
  padding: 0 9px;
  color: var(--primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font: 700 0.84rem / 1 var(--mono);
  animation: flow-in 250ms ease;
}

:where(.scene-td) .td-chips[data-set="c"] span {
  border-color: var(--primary);
}

:where(.scene-td) .td-chips[data-set="point"] span {
  color: var(--accent-hover);
  border-color: var(--accent);
}

:where(.scene-td) .td-chips .empty {
  color: var(--text-faint);
  background: none;
  border-style: dashed;
  font-weight: 400;
}

:where(.scene-td) .td-steps button {
  min-width: 34px;
}

@media (max-width: 900px) {
  :where(.scene-td) .td-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}