/* Decorative computation field. Foreground content remains a separate layer. */
body.has-computation-field { isolation: isolate; }
body.has-computation-field > main,
body.has-computation-field > .site-footer { position: relative; z-index: 1; }
.computation-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  user-select: none;
  overflow: hidden;
  contain: strict;
  opacity: 1;
}
.computation-field[hidden] { display: none !important; }
.computation-field canvas { display: block; width: 100%; height: 100%; }
[data-field-toggle] {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 10px;
  color: var(--ink-3, #8f8c85);
  font: 10px/1.5 var(--font-mono, monospace);
  letter-spacing: .02em;
  border: 1px solid transparent;
}
[data-field-toggle]::before {
  content: '';
  width: 5px;
  height: 5px;
  border: 1px solid currentColor;
  border-radius: 50%;
}
[data-field-toggle][aria-pressed="true"]::before {
  background: var(--signal, #e66b59);
  border-color: var(--signal, #e66b59);
}
[data-field-toggle]:hover:not(:disabled) { color: var(--ink, #f3f1ec); }
[data-field-toggle]:focus-visible {
  outline: 2px solid var(--signal, #e66b59);
  outline-offset: 3px;
}
[data-field-toggle]:disabled { cursor: default; opacity: .65; }
@media (max-width: 760px) {
  .computation-field { opacity: .85; }
  [data-field-toggle] { font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  .computation-field { opacity: .8; }
}
@media print {
  .computation-field, [data-field-toggle] { display: none !important; }
}