/* Reading X-Ray Vision (Journey `read` engine). Tokens from ds.css; Reading colour #2e4a94; no new palette. */
.xr {
  --xr: var(--reading);
  --xr-ink: var(--reading-ink);
  --xr-soft: var(--reading-soft);
  display: grid;
  gap: var(--s-4);
  min-width: 0;
  color: var(--ink);
}
.xr :focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px #fff;
}
.xr p,
.xr li,
.xr h2 {
  overflow-wrap: anywhere;
}
.xr-title {
  margin: 0;
  font: 600 1.375rem/1.25 var(--font-display);
  color: var(--xr-ink);
}
.xr-head {
  display: grid;
  gap: var(--s-3);
}

/* step banner */
.xr-steps {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: 0;
  padding: 0;
  list-style: none;
}
.xr-step {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 2rem;
  padding: 0.2rem 0.65rem 0.2rem 0.3rem;
  border: 1.5px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-2);
  font-size: 0.875rem;
}
.xr-step-n {
  display: grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--surface-3);
  font-weight: 700;
}
.xr-step.is-current {
  border-color: var(--xr);
  background: var(--xr-soft);
  color: var(--xr-ink);
  font-weight: 700;
}
.xr-step.is-current .xr-step-n {
  background: var(--xr);
  color: #fff;
}
.xr-step.is-done .xr-step-n {
  background: var(--right);
  color: #fff;
}
.xr-step .ico {
  width: 1rem;
  height: 1rem;
}
.xr-prompt {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.5;
}

/* X-Ray layers */
.xr-layerbar {
  display: grid;
  gap: var(--s-2);
  padding: var(--s-3);
  border: 1.5px solid color-mix(in srgb, var(--xr) 28%, transparent);
  border-radius: var(--radius);
  background: var(--xr-soft);
}
.xr-layerlabel,
.xr-legend,
.xr-note {
  margin: 0;
  font-size: 0.9375rem;
}
.xr-layerlabel {
  font-weight: 700;
  color: var(--xr-ink);
}
.xr-layers {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}
.xr-seg,
.xr-notebtn,
.xr-opt {
  min-height: 2.75rem;
  padding: 0.4rem 0.9rem;
  border: 1.5px solid var(--xr);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--xr-ink);
  font: 600 0.9375rem/1.3 var(--font);
  cursor: pointer;
}
.xr-seg[aria-pressed="true"],
.xr-notebtn[aria-pressed="true"] {
  background: var(--xr);
  color: #fff;
}
.xr-notebtn[aria-pressed="true"] .xr-hl-n {
  background: #fff;
  color: var(--xr);
}
.xr-notes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: 0;
  padding: 0;
  list-style: none;
}
.xr-notebtn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-weight: 400;
}
.xr-note:empty {
  display: none;
}
.xr-hl {
  padding: 0 0.1em;
  background: color-mix(in srgb, var(--xr) 12%, transparent);
  color: inherit;
}
.xr-hl-meaning {
  text-decoration: underline solid var(--xr) 3px;
  text-underline-offset: 0.2em;
}
.xr-hl-discourse {
  text-decoration: underline dashed var(--xr) 3px;
  text-underline-offset: 0.2em;
  font-weight: 700;
}
.xr-hl-sentence {
  outline: 2px solid var(--xr);
  outline-offset: 1px;
  border-radius: 4px;
}
.xr-hl-word {
  text-decoration: underline dotted var(--xr) 3px;
  text-underline-offset: 0.2em;
  font-style: italic;
}
.xr-swatch {
  display: inline-block;
  margin-inline-end: var(--s-2);
  padding: 0 0.35em;
}
.xr-hl-n {
  display: inline-grid;
  place-items: center;
  min-width: 1.1rem;
  height: 1.1rem;
  margin-inline: 0.15rem;
  border-radius: 50%;
  background: var(--xr);
  color: #fff;
  font: 700 0.7rem/1 var(--font);
  vertical-align: super;
}

/* passage */
.xr-passage {
  display: grid;
  gap: var(--s-2);
  margin: 0;
  padding: 0;
  list-style: none;
}
.xr-sent {
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  gap: var(--s-3);
  align-items: start;
  padding: var(--s-3);
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
}
.xr-chip {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 2px solid var(--xr);
  border-radius: 50%;
  background: var(--surface);
  color: var(--xr-ink);
  font: 700 1rem/1 var(--font);
  cursor: pointer;
}
.xr-chip[aria-pressed="true"] {
  background: var(--xr);
  color: #fff;
}
.xr-chip[aria-disabled="true"] {
  cursor: default;
}
.xr-sent.is-selected {
  border-color: var(--xr);
  background: var(--xr-soft);
}
.xr-sent.is-claim {
  border-color: var(--xr);
  border-width: 3px;
  background: var(--xr-soft);
  cursor: default;
}
.xr-sent.is-valid {
  border-color: var(--right);
  background: var(--right-soft);
}
.xr-sent.is-weak {
  border-color: var(--hint);
  border-style: dashed;
  background: var(--hint-soft);
}
.xr-sent.is-irrelevant {
  border-color: var(--wrong);
  border-style: dotted;
  background: var(--wrong-soft);
}
.xr-sent.is-linked {
  cursor: default;
}
.xr-body {
  display: grid;
  gap: var(--s-2);
  min-width: 0;
}
.xr-text {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.65;
}
.xr-tag,
.xr-mark {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 0.35rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 700;
}
.xr-tag-claim {
  background: var(--xr);
  color: #fff;
}
.xr-tag-ev {
  border: 1.5px solid var(--xr);
  background: var(--surface);
  color: var(--xr-ink);
}
.xr-mark-valid {
  background: var(--right);
  color: #fff;
}
.xr-mark-weak {
  background: var(--hint);
  color: #fff;
}
.xr-mark-irrelevant {
  background: var(--wrong);
  color: #fff;
}
.xr .ico {
  width: 1.1rem;
  height: 1.1rem;
  flex: none;
}
.xr-why {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--ink-2);
}

/* pronoun tracing */
.xr-ref {
  min-height: 2rem;
  padding: 0 0.3rem;
  border: 0;
  border-bottom: 2px dotted var(--xr);
  border-radius: 4px;
  background: color-mix(in srgb, var(--xr) 10%, transparent);
  color: var(--xr-ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.xr-ref.is-traced {
  border-bottom-style: solid;
}
.xr-back {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-inline: 0.25rem;
  padding: 0 0.45rem;
  border-radius: 999px;
  background: var(--right-soft);
  color: var(--right);
  font-size: 0.875rem;
  font-weight: 700;
  animation: xr-pop var(--dur-3) var(--ease-out) both;
}
.xr-trace {
  display: grid;
  gap: var(--s-2);
  padding: var(--s-3);
  border: 1.5px solid var(--xr);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.xr-trace p {
  margin: 0;
}
.xr-opts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}
.xr-trace-fb {
  display: flex;
  gap: var(--s-2);
  font-size: 0.9375rem;
}

/* feedback, actions */
.xr-feedback-slot:empty {
  display: none;
}
.xr-feedback {
  display: flex;
  gap: var(--s-3);
  align-items: flex-start;
  padding: var(--s-3) var(--s-4);
  border: 1.5px solid;
  border-radius: var(--radius);
}
.xr-feedback p {
  margin: 0;
}
.xr-feedback.is-right {
  border-color: var(--right);
  background: var(--right-soft);
}
.xr-feedback.is-hint {
  border-color: var(--hint);
  background: var(--hint-soft);
}
.xr-next {
  margin-top: var(--s-2) !important;
}
.xr-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}
.xr-actions .btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}

/* relationship board: each evidence card is drawn up to the claim */
.xr-board {
  margin: 0;
}
.xr-claimcard {
  position: relative;
  padding: var(--s-4);
  border: 3px solid var(--xr);
  border-radius: var(--radius);
  background: var(--xr-soft);
}
.xr-claimcard p,
.xr-evcard p {
  margin: var(--s-2) 0 0;
  font-size: 1.0625rem;
  line-height: 1.55;
}
.xr-arrow {
  position: absolute;
  left: calc(1.5rem - 8px);
  bottom: -14px;
  width: 16px;
  height: 12px;
  fill: var(--xr);
}
.xr-ev {
  display: grid;
  gap: var(--s-3);
  margin: 0;
  padding: var(--s-4) 0 0 2.75rem;
  list-style: none;
}
.xr-evrow {
  position: relative;
}
.xr-branch {
  position: absolute;
  left: calc(-2.75rem + 1.5rem - 1.5px);
  top: calc(-1 * var(--s-3));
  width: calc(2.75rem - 1.5rem + 1.5px);
  height: calc(var(--s-3) + 1.5rem);
  border-left: 3px solid var(--xr);
  border-bottom: 3px solid var(--xr);
  border-bottom-left-radius: 14px;
}
.xr-evrow:first-child .xr-branch {
  top: calc(-1 * var(--s-4));
  height: calc(var(--s-4) + 1.5rem);
}
.xr-evcard {
  padding: var(--s-3) var(--s-4);
  border: 1.5px solid var(--xr);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.xr-board figcaption {
  margin-top: var(--s-3);
  font-size: 0.9375rem;
  color: var(--ink-2);
}
.xr-board.is-fresh .xr-branch {
  animation: xr-draw var(--dur-4) var(--ease-out) both;
  animation-delay: calc(var(--i, 0) * 160ms);
}
.xr-board.is-fresh .xr-evcard {
  animation: xr-pop var(--dur-3) var(--ease-out) both;
  animation-delay: calc(var(--i, 0) * 160ms);
}
@keyframes xr-draw {
  from {
    clip-path: inset(100% 0 0 0);
  }
  to {
    clip-path: inset(0);
  }
}
@keyframes xr-pop {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* explanation */
.xr-explain {
  display: grid;
  gap: var(--s-3);
}
.xr-label {
  font-weight: 700;
  color: var(--xr-ink);
}
.xr-frame {
  display: flex;
  gap: var(--s-2);
  margin: 0;
  padding: var(--s-3);
  border-inline-start: 4px solid var(--xr);
  background: var(--xr-soft);
  font-size: 1.0625rem;
}
.xr-explain-input {
  font-size: 1.0625rem;
}
.xr-done h3 {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin: 0 0 var(--s-2);
  color: var(--xr-ink);
}

@media (min-width: 640px) {
  .xr-sent {
    padding: var(--s-3) var(--s-4);
  }
  .xr-title {
    font-size: 1.625rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  .xr-board.is-fresh .xr-branch,
  .xr-board.is-fresh .xr-evcard,
  .xr-back {
    animation: none;
  }
}
@media (forced-colors: active) {
  .xr-chip[aria-pressed="true"],
  .xr-seg[aria-pressed="true"] {
    outline: 3px solid Highlight;
  }
}