.page-blog-post .xm-learning-figure.interactive-figure {
  --paper: var(--surface-solid);
  --rule: var(--line);
  --quiet: var(--muted);
  --accent-bg: color-mix(in srgb, var(--accent) 14%, var(--surface-solid));
  --accent-soft: color-mix(in srgb, var(--accent) 30%, var(--line));
  --bit-on: var(--accent);
  --bit-on-text: #fff;
  --bit-off: var(--surface-solid);
  --bit-off-text: var(--text);
  --bit-off-border: var(--line-strong);
  --field: var(--surface-solid);
  --error: #ad3440;
  --focus: var(--accent);
  --soft: color-mix(in srgb, var(--accent) 7%, var(--surface-solid));
  box-sizing: border-box;
  max-width: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.5;
  min-width: 0;
}
@media (prefers-color-scheme: dark) {
  .page-blog-post .xm-learning-figure.interactive-figure {
    --bit-on-text: #000;
    --error: #ffa5aa;
  }
}
.xm-learning-figure.interactive-figure,
.xm-learning-figure.interactive-figure * { box-sizing: border-box; }
.xm-learning-figure.interactive-figure button,
.xm-learning-figure.interactive-figure input { font: inherit; }
.xm-learning-figure.interactive-figure button { cursor: pointer; }
.xm-learning-figure.interactive-figure button:disabled,
.xm-learning-figure.interactive-figure input:disabled { cursor: default; opacity: 1; }
.xm-learning-figure.interactive-figure :focus-visible {
  outline: 3px solid var(--accent); outline-offset: 4px;
}
.xm-learning-figure.interactive-figure p { font-size: inherit; }
.xm-learning-figure .article-body p + p { margin-top: 0; }
.xm-learning-figure .article-body h2 { margin: 3.4rem 0 1rem; font-size: clamp(1.48rem, 3.5vw, 2.05rem); line-height: 1.28; letter-spacing: -.036em; font-weight: 760; text-wrap: balance; }
.xm-learning-figure .article-body h2:first-child { margin-top: 0; }
.xm-learning-figure .article-body .standalone-line { font-weight: 660; color: var(--text); }
.xm-learning-figure .article-body .inline-binary { font-family: var(--mono); font-weight: 600; white-space: nowrap; font-size: .93em; letter-spacing: .005em; }
.page-blog-post .xm-learning-figure.interactive-figure { margin: clamp(2.25rem, 4vw, 3.4rem) 0 2.9rem; }
.xm-learning-figure .figure-card { border: 1px solid var(--rule); border-radius: 18px; background: var(--paper); overflow: hidden; padding: clamp(1.15rem, 3.7vw, 2rem); }
.xm-learning-figure .figure-topline { display: flex; align-items: center; justify-content: space-between; gap: .8rem; margin-bottom: 1.9rem; }
.xm-learning-figure .figure-kicker { font-size: .66rem; line-height: 1.4; font-weight: 790; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.xm-learning-figure .figure-help { font-size: .77rem; line-height: 1.5; color: var(--muted); text-align: right; }
.xm-learning-figure .bit-track { display: flex; justify-content: center; align-items: flex-start; flex-wrap: wrap; gap: clamp(.35rem, 1.6vw, .8rem); }
.xm-learning-figure .bit-group { display: flex; align-items: flex-start; justify-content: center; gap: clamp(.24rem, 1.2vw, .6rem); }
.xm-learning-figure .bit-cell { display: flex; flex-direction: column; align-items: center; min-width: 0; }
.xm-learning-figure .bit-button { display: grid; place-items: center; border: 1.5px solid var(--bit-off-border); background: var(--bit-off); color: var(--bit-off-text); border-radius: 11px; width: clamp(55px, 8vw, 76px); min-height: clamp(70px, 9vw, 88px); font-family: var(--mono); font-size: clamp(2.2rem, 5vw, 3.15rem); line-height: 1; font-variant-numeric: tabular-nums; font-weight: 690; padding: 0; transition: background-color .12s ease, border-color .12s ease, box-shadow .12s ease; user-select: none; -webkit-tap-highlight-color: transparent; }
.xm-learning-figure .bit-button:hover { border-color: var(--accent); }
.xm-learning-figure .bit-button[aria-pressed="true"] { background: var(--bit-on); border-color: var(--bit-on); color: var(--bit-on-text); }
.xm-learning-figure .bit-button[aria-pressed="true"]:hover { box-shadow: 0 0 0 3px var(--accent-bg); }
.xm-learning-figure .bit-weight { margin-top: .52rem; color: var(--muted); line-height: 1; font-size: .76rem; font-weight: 610; font-variant-numeric: tabular-nums; }
.xm-learning-figure .bit-button--byte { width: clamp(43px, 6.4vw, 59px); min-height: clamp(66px, 7.8vw, 75px); font-size: clamp(2rem, 4.3vw, 2.75rem); border-radius: 10px; }
.xm-learning-figure .bit-button--byte[aria-pressed="false"] { color: var(--bit-off-text); }
.xm-learning-figure .figure-flow { display: flex; align-items: center; justify-content: center; margin: 1.4rem 0 .55rem; color: var(--quiet); }
.xm-learning-figure .flow-arrow { width: 1.5rem; height: 2.4rem; display: block; }
.xm-learning-figure .figure-outcome { display: flex; flex-direction: column; align-items: center; gap: .16rem; text-align: center; }
.xm-learning-figure .figure-small-label { color: var(--muted); font-size: .77rem; line-height: 1.45; letter-spacing: .01em; font-weight: 600; }
.xm-learning-figure .figure-number { font-size: clamp(4.2rem, 10vw, 6.2rem); font-variant-numeric: tabular-nums; font-weight: 750; letter-spacing: -.09em; line-height: 1.12; margin: .1rem 0 .2rem; color: var(--text); }
.xm-learning-figure .figure-breakdown { font-family: var(--mono); font-size: .9rem; font-weight: 570; color: var(--muted); }
.xm-learning-figure .figure-bottom { margin-top: 1.8rem; padding-top: 1rem; border-top: 1px solid var(--rule); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.xm-learning-figure .micro-hint { color: var(--muted); font-size: .79rem; line-height: 1.5; }
.xm-learning-figure .reset-button { flex-shrink: 0; border-radius: 8px; border: 1px solid var(--rule); background: var(--paper); color: var(--text); padding: .52rem .75rem; font-size: .77rem; line-height: 1.35; font-weight: 720; min-height: 39px; }
.xm-learning-figure .reset-button:hover { border-color: var(--accent); color: var(--accent); }
.xm-learning-figure .figure-caption { margin: .75rem .2rem 0 !important; color: var(--muted); font-size: .82rem; line-height: 1.57; letter-spacing: 0; }
.xm-learning-figure .figure-caption strong { color: var(--text); font-weight: 750; }
.xm-learning-figure .interpretation-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .85rem; }
.xm-learning-figure .interpretation-cell { min-height: 185px; border: 1px solid var(--rule); border-radius: 13px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 1rem .5rem; text-align: center; }
.xm-learning-figure .interpretation-value { font-size: clamp(3.35rem, 8vw, 5.25rem); line-height: 1.18; letter-spacing: -.07em; font-weight: 760; margin: .3rem 0; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.xm-learning-figure .interpretation-value.is-descriptor { font-size: clamp(1.25rem, 3.4vw, 1.8rem); letter-spacing: -.02em; }
.xm-learning-figure .interpretation-note { color: var(--muted); font-size: .72rem; line-height: 1.4; max-width: 23ch; }
.xm-learning-figure .ascii-explainer { color: var(--muted); text-align: center; font-size: .8rem; line-height: 1.5; margin: 1.05rem 0 .55rem; min-height: 2.5em; }
.xm-learning-figure .figure-input-row { display: flex; align-items: end; gap: .8rem; justify-content: space-between; flex-wrap: wrap; }
.xm-learning-figure .field-stack { flex: 1 1 240px; display: flex; flex-direction: column; gap: .44rem; }
.xm-learning-figure .field-label { color: var(--muted); font-size: .8rem; font-weight: 650; }
.xm-learning-figure .letter-input { width: 100%; max-width: 410px; border: 1px solid var(--bit-off-border); border-radius: 9px; color: var(--text); background: var(--field); font-size: 1rem; padding: .75rem .85rem; line-height: 1.25; min-height: 46px; }
.xm-learning-figure .letter-input::placeholder { color: var(--quiet); opacity: 1; }
.xm-learning-figure .field-error { color: var(--error); font-size: .8rem; line-height: 1.45; min-height: 1.1em; margin: .28rem 0 0; }

#binary-addition {
  --add-slot: clamp(40px, 5.6vw, 72px);
  --add-gap: clamp(4px, .9vw, 12px);
  --add-height: clamp(70px, 6.5vw, 84px);
  --add-arrow-width: 30px;
  --add-decimal-width: 128px;
  --add-column-gap: clamp(6px, 1vw, 14px);
  --add-binary-width: calc(5 * var(--add-slot) + 4 * var(--add-gap));
  --add-row-width: calc(var(--add-binary-width) + var(--add-arrow-width) + var(--add-decimal-width) + 2 * var(--add-column-gap));
}
.xm-learning-figure .addition-operand { display: flex; flex-direction: column; align-items: center; gap: .65rem; }
.xm-learning-figure .addition-operand-heading { display: flex; align-items: baseline; justify-content: center; text-align: center; }

#binary-addition .addition-value-row {
  display: grid;
  grid-template-columns: var(--add-binary-width) var(--add-arrow-width) var(--add-decimal-width);
  column-gap: var(--add-column-gap);
  align-items: center;
  width: var(--add-row-width);
  max-width: 100%;
  margin-inline: auto;
}
#binary-addition .addition-value-row > .bit-track {
  display: grid;
  grid-template-columns: repeat(5, var(--add-slot));
  column-gap: var(--add-gap);
  align-items: center;
  justify-items: center;
  width: var(--add-binary-width);
  margin: 0;
}

#binary-addition .addition-operand .bit-track .bit-cell:first-child { grid-column: 2; }
#binary-addition .addition-operand .bit-button {
  width: var(--add-slot);
  min-height: var(--add-height);
  font-size: clamp(2rem, 5vw, 3.15rem);
}
#binary-addition .addition-decimal-equivalence { display: contents; }
#binary-addition .addition-arrow {
  grid-column: 2;
  justify-self: center;
  color: var(--quiet);
  font-size: clamp(1.55rem, 3.5vw, 2.2rem);
  font-weight: 620;
  line-height: 1;
}
#binary-addition .addition-decimal-readout {
  grid-column: 3;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  width: var(--add-decimal-width);
  min-width: 0;
}
#binary-addition .addition-input-decimal,
#binary-addition .addition-total-decimal {
  display: block;
  font-size: clamp(3.2rem, 7.4vw, 4.7rem);
  font-weight: 780;
  line-height: 1.05;
  letter-spacing: -.065em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: left;
}
#binary-addition .addition-total-decimal { font-size: clamp(3.5rem, 8.1vw, 5.2rem); }
#binary-addition .addition-decimal-unit { margin-top: .28rem; font-size: .67rem; line-height: 1.4; font-weight: 600; color: var(--muted); }
.xm-learning-figure .addition-operator { font-size: 2.2rem; font-weight: 590; line-height: 1; color: var(--muted); text-align: center; margin: 1.05rem auto; }
.xm-learning-figure .addition-separator { max-width: 430px; height: 1px; background: var(--rule); margin: 1.8rem auto 1.25rem; }
.xm-learning-figure .addition-outcome { gap: .6rem; }
#binary-addition .addition-result-track .bit-cell { display: flex; }
#binary-addition .bit-display {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--add-slot);
  min-height: var(--add-height);
  padding: 0;
  border-radius: 11px;
  border: 1px solid var(--accent-soft);
  background: color-mix(in srgb, var(--accent) 16%, var(--soft));
  color: var(--text);
  font-family: var(--mono);
  font-size: clamp(2rem, 5vw, 3.15rem);
  font-weight: 760;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--paper) 22%, transparent);
}
.xm-learning-figure .addition-decimal-result { font-size: .95rem; line-height: 1.5; color: var(--muted); font-variant-numeric: tabular-nums; }
.xm-learning-figure .addition-carry-information { display: flex; flex-direction: column; gap: .25rem; text-align: center; margin: 1.6rem auto 0; padding: .8rem 1rem; background: var(--soft); color: var(--muted); border-radius: 10px; font-size: .82rem; line-height: 1.55; }
.xm-learning-figure .addition-carry-heading { color: var(--text); font-size: .78rem; font-weight: 730; }
.xm-learning-figure .addition-overflow:empty { display: none; }
.xm-learning-figure .addition-overflow:not(:empty) { color: var(--text); font-weight: 650; }
@media (max-width: 660px) {
  #binary-addition {
    --add-slot: clamp(40px, 10vw, 64px);
    --add-gap: clamp(3px, .8vw, 8px);
    --add-height: 66px;
    --add-arrow-width: clamp(16px, 4vw, 24px);
    --add-decimal-width: clamp(52px, 14vw, 85px);
    --add-column-gap: clamp(3px, .8vw, 8px);
  }
  #binary-addition .addition-operand .bit-button,
  #binary-addition .bit-display { font-size: clamp(1.95rem, 7.7vw, 2.55rem); }
  #binary-addition .addition-arrow { font-size: 1.4rem; }
  #binary-addition .addition-input-decimal { font-size: clamp(2.65rem, 10.5vw, 3.35rem); }
  #binary-addition .addition-total-decimal { font-size: clamp(2.9rem, 11.5vw, 3.8rem); }
  #binary-addition .addition-decimal-unit { font-size: .6rem; }
  .xm-learning-figure .addition-carry-information { padding: .75rem .6rem; }
}
@media (max-width: 455px) {
  
  #binary-addition .addition-value-row {
    grid-template-columns: var(--add-binary-width);
    row-gap: .35rem;
    width: var(--add-binary-width);
    justify-items: center;
  }
  #binary-addition .addition-decimal-equivalence {
    display: flex;
    grid-column: 1;
    justify-content: flex-end;
    align-items: center;
    gap: .5rem;
    width: 100%;
  }
  #binary-addition .addition-arrow,
  #binary-addition .addition-decimal-readout { grid-column: auto; }
}

.xm-learning-figure .figure-note { color: var(--muted); font-size: .75rem; line-height: 1.55; text-align: center; margin-top: .65rem; }

.xm-learning-figure .bit-button { font-family: var(--mono) !important; }


.xm-learning-figure .xm-grey-ramp {
  width: 100%; aspect-ratio: 13/2.2; min-height: 4rem;
  border: 1px solid var(--line-strong); border-radius: .7rem;
  background: linear-gradient(90deg,#000 0%,#808080 50%,#fff 100%);
}
.xm-learning-figure .xm-grey-labels {
  display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: .5rem;
  margin-top: .8rem; color: var(--text); font-weight: 650; font-size: .85rem;
}
.xm-learning-figure .xm-grey-labels span:nth-child(2) { text-align: center; }
.xm-learning-figure .xm-grey-labels span:last-child { text-align: end; }
.xm-learning-figure--greyscale .xm-learning-content { direction: ltr; }
.xm-learning-figure .xm-sound-visual { direction: ltr; display: grid; gap: .6rem; }
.xm-learning-figure .xm-sound-wave-row {
  display: grid; grid-template-columns: minmax(5.4rem, .27fr) minmax(0,1fr) auto;
  gap: clamp(.45rem,2vw,1.2rem); align-items: center; min-width: 0;
}
.xm-learning-figure .xm-sound-description { display: grid; gap: .2rem; min-width: 0; }
.xm-learning-figure .xm-sound-description strong { color: var(--text); font-size: .93rem; }
.xm-learning-figure .xm-sound-description span { color: var(--muted); font-size: .79rem; }
.xm-learning-figure .xm-sound-svg {
  display: block; width: 100%; height: auto; overflow: visible;
  stroke-linejoin: round; stroke-linecap: round;
}
.xm-learning-figure .xm-wave-baseline { stroke: var(--line-strong); stroke-width: 1.5; stroke-dasharray: 4 6; }
.xm-learning-figure .xm-wave-line { fill: none; stroke: var(--accent); stroke-width: 2.7; }
.xm-learning-figure .xm-wave-sample { fill: var(--surface-solid); stroke: var(--accent); stroke-width: 1.7; }
.xm-learning-figure .xm-sound-zero { color: var(--muted); font-size: .8rem; }
.xm-learning-figure .xm-sound-time { margin: .35rem 0 0; text-align: end; color: var(--muted); font-size: .78rem; }
.xm-learning-figure:not(.interactive-figure) figcaption { line-height: 1.55; overflow-wrap: anywhere; }

@media (max-width: 680px) {
  .xm-learning-figure .figure-card { padding: 1.1rem; border-radius: 13px; }
  .xm-learning-figure .figure-topline { flex-direction: column; align-items: flex-start; gap: .25rem; margin-bottom: 1.5rem; }
  .xm-learning-figure .figure-help { text-align: left; }
  .xm-learning-figure .figure-bottom { align-items: flex-start; }
  .xm-learning-figure .interpretation-cell { min-height: 148px; }
}
@media (max-width: 440px) {
  .xm-learning-figure .bit-button { width: clamp(48px, 13vw, 60px); min-height: 66px; font-size: clamp(2rem, 8vw, 2.65rem); }
  .xm-learning-figure .bit-button--byte { width: clamp(49px, 14vw, 58px); min-height: 68px; font-size: clamp(2.1rem, 9.7vw, 2.65rem); }
  .xm-learning-figure .bit-track { column-gap: .45rem; row-gap: .75rem; }
  .xm-learning-figure .bit-group { gap: .22rem; }
  .xm-learning-figure .interpretation-grid { gap: .55rem; }
  .xm-learning-figure .interpretation-cell { padding: .65rem .25rem; }
  .xm-learning-figure .interpretation-note { font-size: .67rem; }
  .xm-learning-figure .figure-number { font-size: 4.5rem; }
  .xm-learning-figure .byte-digits { font-size: clamp(2.05rem, 8.7vw, 2.5rem); }
}

@media (max-width: 440px) {
  .xm-learning-figure .bit-track { flex-wrap: nowrap; }
  .xm-learning-figure .bit-button--byte { width: clamp(29px, 8vw, 44px); min-height: 56px; font-size: clamp(1.4rem, 6vw, 2rem); }
  .xm-learning-figure .bit-group { gap: clamp(2px, .7vw, 5px); }
  .xm-learning-figure .bit-track { gap: clamp(3px, 1vw, 7px); }
  .xm-learning-figure .interpretation-value { font-size: clamp(2.8rem, 10vw, 4.2rem); }
  .xm-learning-figure .figure-card { padding: .85rem; }
}
@media (prefers-reduced-motion: reduce) {
  .xm-learning-figure .bit-button { transition: none; }
}
@media print {
  .xm-learning-figure.interactive-figure .figure-card { break-inside: avoid; }
  .xm-learning-figure.interactive-figure { break-inside: avoid; }
}

@media (max-width: 520px) {
  .xm-learning-figure .xm-sound-wave-row { grid-template-columns: minmax(4.1rem,.25fr) minmax(0,1fr) auto; gap: .25rem; }
  .xm-learning-figure .xm-sound-description strong { font-size: .79rem; }
  .xm-learning-figure .xm-sound-description span { font-size: .71rem; }
}