/* Figure 5. Break it: one switch, reading or writing; 1,000 random states per draw under the ceiling.
   Every class is prefixed bi5-. Cyan = acts that only read and the ceiling 2; magenta = acts that write and 2√2; hairline = 4. */
.bi5 {
  --k-paper: var(--bi-paper, #faf8f3); --k-ink: var(--bi-ink, #1d1d1b); --k-body: var(--bi-body, #2a2926); --k-soft: var(--bi-soft, #3c3a36);
  --k-hair: var(--bi-hair, #8a8a8a); --k-rule: var(--bi-rule, color-mix(in srgb, var(--k-ink) 16%, var(--k-paper)));
  --k-c: var(--bi-cyan, #009fe3); --k-m: var(--bi-magenta, #e6007e); --k-c-text: var(--bi-cyan-text, #0072b5); --k-m-text: var(--bi-magenta-text, #c4006b);
  --k-m-tint: color-mix(in srgb, var(--k-m) 8%, var(--k-paper));
  --k-text: var(--bi-text, "InterVariable", "Inter", -apple-system, "Helvetica Neue", Arial, sans-serif);
  --k-display: var(--bi-display, "Inter Display", "InterVariable", "Inter", -apple-system, "Helvetica Neue", Arial, sans-serif);
  --k-mono: var(--bi-mono, "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace);
  container-type: inline-size;
  margin: 0; padding: clamp(.9rem, 1.8vw, 1.25rem); background: var(--k-paper); color: var(--k-body);
  border: 1px solid var(--k-ink); font-family: var(--k-text); font-weight: 420; line-height: 1.42;
  font-optical-sizing: auto; box-sizing: border-box; position: relative;
}
@media screen and (prefers-color-scheme: dark) {
  .bi5 { --k-paper: var(--bi-paper, #141413); --k-ink: var(--bi-ink, #faf8f3); --k-body: var(--bi-body, #e9e6df); --k-soft: var(--bi-soft, #c9c5bc);
    --k-c: var(--bi-cyan, #2bb3f0); --k-m: var(--bi-magenta, #ff3d9e); --k-c-text: var(--bi-cyan-text, #2bb3f0); --k-m-text: var(--bi-magenta-text, #ff6fb6);
    --k-m-tint: color-mix(in srgb, var(--k-m) 13%, var(--k-paper)); }
}
.bi5 *, .bi5 *::before, .bi5 *::after { box-sizing: border-box; }
.bi5-label { margin: 0; font: 700 .7rem/1.3 var(--k-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--k-soft); }
.bi5-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1rem; align-items: baseline;
  padding-bottom: .7rem; margin-bottom: .9rem; border-bottom: 1px solid var(--k-rule); }
.bi5-head .bi5-live { color: var(--k-ink); }
.bi5-live::before { content: ""; display: inline-block; width: .5rem; height: .5rem; margin-right: .45rem; background: var(--k-m); vertical-align: .05rem; }
.bi5-lede { margin: 0 0 .9rem; max-width: 52rem; font-size: 1.05rem; font-weight: 450; line-height: 1.32; color: var(--k-ink); }
.bi5-ctl { display: flex; flex-wrap: wrap; gap: .7rem 1.2rem; align-items: flex-end; margin-bottom: .6rem; }
.bi5-ctl .bi5-label { margin-bottom: .35rem; }
.bi5-seg { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--k-ink); }
.bi5-seg button, .bi5-btn { appearance: none; border: 0; border-radius: 0; background: transparent; color: var(--k-ink); cursor: pointer;
  font: 700 .66rem/1 var(--k-mono); letter-spacing: .1em; text-transform: uppercase; padding: .6rem .85rem; min-height: 36px; }
.bi5-seg button + button { border-left: 1px solid var(--k-ink); }
.bi5-seg button[aria-pressed="true"] { background: var(--k-ink); color: var(--k-paper); }
.bi5-btn { border: 1px solid var(--k-ink); }
.bi5-btn:hover, .bi5-seg button:hover:not([aria-pressed="true"]) { background: color-mix(in srgb, var(--k-ink) 8%, transparent); }
.bi5-seg button:focus-visible, .bi5-btn:focus-visible { outline: 2px solid var(--k-ink); outline-offset: 2px; }
.bi5-line { display: block; width: 100%; overflow: visible; }
.bi5-line text { font-family: var(--k-mono); fill: var(--k-soft); paint-order: stroke; stroke: var(--k-paper); stroke-width: 3px; stroke-linejoin: round; }
.bi5-line .t-cap { font-size: 9.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.bi5-line .t-read { fill: var(--k-c-text); } .bi5-line .t-write { fill: var(--k-m-text); }
.bi5-line .t-tick { font-size: 10px; }
.bi5-line .t-best { font-size: 9.5px; font-weight: 700; fill: var(--k-ink); letter-spacing: .06em; text-transform: uppercase; }
.bi5-line .axis { stroke: var(--k-ink); stroke-width: 1.2; }
.bi5-line .tick { stroke: var(--k-ink); stroke-width: 1; }
.bi5-line .c-read { stroke: var(--k-c); stroke-width: 1.5; }
.bi5-line .c-write { stroke: var(--k-m); stroke-width: 1.5; }
.bi5-line .c-table { stroke: var(--k-hair); stroke-width: 1.2; stroke-dasharray: 4 3; }
.bi5-line .c-on { stroke-width: 3.4; }
.bi5-line .band { fill: var(--k-m-tint); }
.bi5-line .band-read { fill: var(--k-c); opacity: .08; }
.bi5-line .dots circle { stroke: none; }
.bi5-line .d-read circle { fill: var(--k-c); opacity: .55; }
.bi5-line .d-write circle { fill: var(--k-m); opacity: .5; }
.bi5-line .bestl { stroke: var(--k-ink); stroke-width: 1.2; stroke-dasharray: 2 2; }
.bi5-words { margin: .5rem 0 0; font-size: .95rem; line-height: 1.35; color: var(--k-ink); font-weight: 560; max-width: 48rem; }
.bi5-exact { margin: .35rem 0 0; font-size: .86rem; line-height: 1.38; color: var(--k-soft); max-width: 48rem; }
.bi5-exact b { color: var(--k-ink); font-variant-numeric: tabular-nums; }
.bi5-caption { margin: .9rem 0 0; padding-top: .8rem; border-top: 1px solid var(--k-rule); font-size: .92rem; color: var(--k-body); max-width: 52rem; }
.bi5-sr { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
@media (forced-colors: active) {
  .bi5 { border-color: CanvasText; }
  .bi5-line text { fill: CanvasText; stroke: Canvas; }
  .bi5-line .axis, .bi5-line .tick, .bi5-line .c-read, .bi5-line .c-write, .bi5-line .c-table, .bi5-line .bestl { stroke: CanvasText; }
  .bi5-line .dots circle { fill: Highlight; }
  .bi5-line .band, .bi5-line .band-read { fill: Canvas; }
  .bi5-seg button[aria-pressed="true"] { forced-color-adjust: none; background: Highlight; color: HighlightText; }
}
@media print {
  .bi5 { --k-paper: #ffffff; --k-ink: #1d1d1b; --k-body: #2a2926; --k-soft: #3c3a36; --k-hair: #8a8a8a; --k-rule: #d6d4cf;
    --k-c: #009fe3; --k-m: #e6007e; --k-c-text: #0072b5; --k-m-text: #c4006b; --k-m-tint: #fdeef6; }
  .bi5, .bi5 * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .bi5-btn { display: none; }
}

@media screen and (prefers-color-scheme: dark) { .bi5-line .band-read { opacity: .17; } }