/* From a graph to equations to values */

:where(.scene-eqs) .eqs-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(0, 1.2fr);
  gap: 16px;
}

:where(.scene-eqs) .eqs-panel {
  padding: 14px 16px;
  background: var(--surface-muted);
  border-radius: var(--radius);
}

:where(.scene-eqs) .eqs-cfg {
  max-width: 300px !important;
  font-family: var(--mono) !important;
}

:where(.scene-eqs) .eqs-edge line,
:where(.scene-eqs) .eqs-edge path {
  fill: none;
  stroke: var(--text-muted);
  stroke-width: 1.8;
  transition:
    stroke 150ms ease,
    stroke-width 150ms ease;
}

:where(.scene-eqs) .eqs-edge .hit {
  stroke: transparent;
  stroke-width: 14;
}

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

:where(.scene-eqs) .eqs-edge:not(.plain) {
  cursor: help;
  outline: none;
}

:where(.scene-eqs) .eqs-edge.is-hl line:not(.hit),
:where(.scene-eqs) .eqs-edge.is-hl path:not(.hit) {
  stroke: var(--accent);
  stroke-width: 3.5;
}

:where(.scene-eqs) .eqs-edge.is-hl text {
  fill: var(--accent-hover) !important;
  font-weight: 700;
}

:where(.scene-eqs) .eqs-val {
  fill: var(--primary) !important;
}

:where(.scene-eqs) .eqs-eq {
  margin: 0 0 10px;
  padding: 8px 10px;
  color: var(--text);
  background: var(--surface);
  border-radius: 8px;
  font: 0.92rem / 1.6 var(--mono);
}

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

:where(.scene-eqs) .eqs-eq .term[data-edge] {
  padding: 1px 4px;
  border-bottom: 2px dotted var(--border-strong);
  border-radius: 4px;
  cursor: help;
  outline: none;
  transition:
    background 150ms ease,
    border-color 150ms ease;
}

:where(.scene-eqs) .eqs-eq .term.is-hl {
  background: var(--accent-soft);
  border-bottom-color: var(--accent);
}

:where(.scene-eqs) .eqs-hint {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-style: italic;
}

:where(.scene-eqs) .eqs-box-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
}

:where(.scene-eqs) .eqs-box-panel .td-panel-title {
  align-self: flex-start;
}

:where(.scene-eqs) .eqs-flow {
  display: grid;
  justify-items: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

:where(.scene-eqs) .eqs-flow-arrow {
  color: var(--accent);
  font-size: 1.3rem;
  line-height: 1.2;
  animation: flow-arrow 1.6s ease-in-out infinite;
}

@keyframes flow-arrow {
  0%,
  100% {
    transform: translateY(-2px);
    opacity: 0.5;
  }
  50% {
    transform: translateY(3px);
    opacity: 1;
  }
}

:where(.scene-eqs) .eqs-box {
  display: grid;
  justify-items: center;
  gap: 2px;
  width: 100%;
  padding: 16px 12px;
  color: #ffffff;
  background: var(--surface-dark);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

:where(.scene-eqs) .eqs-box i {
  color: #f0c674;
  font-size: 1.6rem;
  animation: gear-turn 6s linear infinite;
}

:where(.scene-eqs) .eqs-box span {
  color: #8fa6ab;
  font-size: 0.76rem;
}

@keyframes gear-turn {
  to {
    transform: rotate(360deg);
  }
}

:where(.scene-eqs) .eqs-result {
  width: 100%;
  margin-top: 4px;
  font-family: var(--mono);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

:where(.scene-eqs) .eqs-result th,
:where(.scene-eqs) .eqs-result td {
  padding: 6px 10px;
  background: transparent;
  border: 0;
}

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

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

:where(.scene-eqs) .eqs-check {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--success-soft);
  border: 1px solid rgb(40 115 75 / 0.25);
  border-radius: var(--radius);
}

:where(.scene-eqs) .eqs-check p {
  margin: 0;
}

:where(.scene-eqs) .eqs-check ul {
  margin: 8px 0 0;
  padding-left: 20px;
}

:where(.scene-eqs) .eqs-check li {
  margin-top: 4px;
}

@media (max-width: 1100px) {
  :where(.scene-eqs) .eqs-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

:where(.scene-eqs) .eqs-result code {
  padding: 0;
  border: 0;
}

/* -------------------------------------------------------------------------- */
/* The solved figure: what the run returned                                    */
/* -------------------------------------------------------------------------- */

:where(.scene-eqs) .eqs-said {
  max-width: var(--measure);
  margin: 0;
  color: var(--text-muted);
}

/* The run reads left to right like the pipelines earlier in the section, so the
   result is a band rather than a tall column beside two lines of text. */
:where(.scene-eqs) .eqs-run {
  align-items: center;
  margin-top: 18px;
}

:where(.scene-eqs) .eqs-run .eqs-result {
  flex: 0 0 auto;
  width: auto;
  margin: 0;
  padding: 0;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* The edges are cell padding, not table padding: a table's own padding is not
   reliably honoured, and the two columns then set their own sides. */
:where(.scene-eqs) .eqs-run .eqs-result th {
  width: auto;
  padding: 4px 0 4px 20px;
  line-height: 1.5;
  text-align: left;
}

:where(.scene-eqs) .eqs-run .eqs-result td {
  padding: 4px 20px 4px 18px;
  line-height: 1.5;
  text-align: left;
}