/* =========================================================================
   Confound Detective — tool-specific styling
   -------------------------------------------------------------------------
   Shared page furniture comes from components/tool-kit.css. What is
   particular here is the study card, the two-bar effect comparison and the
   causal diagram.
   ========================================================================= */

#confound .interactive__controls,
#confound .interactive__stage {
  min-width: 0;
}

/* The stage is a grid, so a wide child would otherwise set the track's
   minimum width and drag the page sideways instead of scrolling itself. */
#confound .interactive__stage > * {
  min-width: 0;
}

@media (min-width: 52em) {
  #confound .interactive__body {
    grid-template-columns: minmax(0, 21rem) minmax(0, 1fr);
  }
}

/* The causal diagram is nearly square, so without a cap it would stretch to
   the full stage width and become several hundred pixels tall. */
[data-dag] {
  max-width: 30rem;
}

/* -------------------------------------------------------------------------
   Study card
   ---------------------------------------------------------------------- */

.claim {
  margin: 0 0 var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid var(--colour-research-methods);
  background-color: var(--colour-surface);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  font-weight: 650;
  line-height: 1.45;
}

.case__design {
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm);
  color: var(--colour-text-muted);
}

/* -------------------------------------------------------------------------
   Variable classification rows
   ---------------------------------------------------------------------- */

.variable {
  padding: var(--space-3) 0;
  border-top: 1px solid var(--colour-border);
}

.variable:first-child {
  border-top: 0;
}

.variable__label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.4;
}

/* -------------------------------------------------------------------------
   Repair checkboxes
   ---------------------------------------------------------------------- */

.repair {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  min-height: 2.75rem;
  padding: var(--space-2) 0;
  border-top: 1px solid var(--colour-border);
  font-size: var(--text-sm);
  line-height: 1.4;
  cursor: pointer;
}

.repair:first-child {
  border-top: 0;
}

.repair input {
  width: 1.15rem;
  height: 1.15rem;
  flex: none;
  margin-top: 0.55rem;
  accent-color: var(--colour-accent);
}

.repair span {
  padding-top: 0.35rem;
}

/* -------------------------------------------------------------------------
   Estimated against true effect
   -------------------------------------------------------------------------
   Two bars, each printing its own number and its own name, so neither the
   length nor the fill is the only carrier.
   ---------------------------------------------------------------------- */

.effect {
  display: grid;
  gap: 0.4rem;
  font-size: var(--text-sm);
}

.effect__row {
  display: grid;
  grid-template-columns: minmax(5.5rem, 8rem) 1fr;
  gap: 0.2rem var(--space-3);
  align-items: center;
}

@media (max-width: 30em) {
  .effect__row {
    grid-template-columns: 1fr;
  }
}

.effect__name {
  font-weight: 600;
}

.effect__meter {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.effect__track {
  flex: 1 1 4rem;
  min-width: 3rem;
  height: 1rem;
  border: 1px solid var(--colour-border-strong);
  border-radius: var(--radius-sm);
  background-color: var(--colour-surface);
  overflow: hidden;
}

.effect__fill {
  display: block;
  height: 100%;
  transition: width 200ms ease-out;
}

/* The true bar is solid; the estimated bar is striped, so the two are
   distinguishable in greyscale as well as by their printed labels. */
.effect__row[data-kind="true"] .effect__fill {
  background-color: var(--colour-neuropsychology);
}

.effect__row[data-kind="estimate"] .effect__fill {
  background-color: var(--colour-accent);
  background-image: repeating-linear-gradient(
    45deg, transparent 0 5px, rgb(255 255 255 / 0.45) 5px 10px);
}

.effect__value {
  flex: 0 0 auto;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
}

@media (prefers-reduced-motion: reduce) {
  .effect__fill {
    transition: none;
  }
}

/* -------------------------------------------------------------------------
   Causal diagram
   -------------------------------------------------------------------------
   Blocked confounds are drawn with a dashed outline AND labelled "blocked" in
   the node itself, and the paired table repeats every status in words.
   ---------------------------------------------------------------------- */

.dag__node {
  fill: var(--colour-surface);
  stroke: var(--colour-text);
  stroke-width: 1.5;
}

.dag__node--core {
  fill: var(--colour-accent-soft);
  stroke: var(--colour-accent);
  stroke-width: 2;
}

.dag__node--blocked {
  stroke-dasharray: 5 4;
  stroke: var(--colour-text-muted);
}

.dag__edge {
  stroke: var(--colour-text);
  stroke-width: 1.6;
  fill: none;
}

.dag__edge--core {
  stroke: var(--colour-accent);
  stroke-width: 2.4;
}

.dag__edge--blocked {
  stroke: var(--colour-text-muted);
  stroke-dasharray: 4 4;
  stroke-width: 1.2;
}

.dag__head {
  fill: var(--colour-text);
}

.dag__head--core {
  fill: var(--colour-accent);
}

.dag__head--blocked {
  fill: var(--colour-text-muted);
}

/* -------------------------------------------------------------------------
   Variable-by-variable feedback
   ---------------------------------------------------------------------- */

.part {
  margin: 0 0 var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-left: 4px solid var(--colour-border-strong);
  background-color: var(--colour-surface);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
}

.part:last-child {
  margin-bottom: 0;
}

.part[data-standing="right"] { border-left-color: var(--colour-neuropsychology); }
.part[data-standing="wrong"] { border-left-color: var(--colour-social-critical-psychology); }

.part__head {
  margin: 0 0 0.2rem;
  font-weight: 700;
}

.part__standing {
  font-variant: small-caps;
  letter-spacing: 0.03em;
}

.part__body {
  margin: 0;
}

@media (forced-colors: active) {
  .claim,
  .effect__track,
  .variable,
  .repair,
  .part {
    border-color: CanvasText;
  }

  .effect__row[data-kind="true"] .effect__fill { background-color: CanvasText; }
  .effect__row[data-kind="estimate"] .effect__fill {
    background-color: Highlight;
    background-image: none;
  }

  .dag__node { fill: Canvas; stroke: CanvasText; }
  .dag__node--core { fill: Canvas; stroke: Highlight; }
  .dag__node--blocked { stroke: GrayText; }
  .dag__edge { stroke: CanvasText; }
  .dag__edge--core { stroke: Highlight; }
  .dag__edge--blocked { stroke: GrayText; }
  .dag__head { fill: CanvasText; }
  .dag__head--core { fill: Highlight; }
  .dag__head--blocked { fill: GrayText; }
}