/* The summary: one screen, three ways. Every class is prefixed dss-. The figure takes the page's tokens (--ds-paper, --ds-ink,
   --ds-cyan, ...) when the page defines them, and the design stack's values when it does not. */
.dss {
  --dsf-paper: var(--ds-paper, #faf8f3); --dsf-ink: var(--ds-ink, #1d1d1b); --dsf-body: var(--ds-body, #2a2926);
  --dsf-soft: var(--ds-soft, #3c3a36); --dsf-hair: var(--ds-hair, #8a8a8a);
  --dsf-rule: color-mix(in srgb, var(--dsf-ink) 16%, var(--dsf-paper));
  --dsf-c: var(--ds-cyan, #009fe3); --dsf-m: var(--ds-magenta, #e6007e);
  --dsf-c-text: var(--ds-cyan-text, #0072b5); --dsf-m-text: var(--ds-magenta-text, #c4006b);
  --dsf-c-dot: var(--ds-cyan-text, #0072b5);   /* small cyan marks: the text shade keeps 3:1 against the paper */
  --dsf-text: var(--ds-text, "InterVariable", "Inter", -apple-system, "Helvetica Neue", Arial, sans-serif);
  --dsf-mono: var(--ds-mono, "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace);
  margin: 0; color: var(--dsf-body); font-family: var(--dsf-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) {
  .dss { --dsf-paper: var(--ds-paper, #141413); --dsf-ink: var(--ds-ink, #faf8f3); --dsf-body: var(--ds-body, #e9e6df);
    --dsf-soft: var(--ds-soft, #c9c5bc); --dsf-c: var(--ds-cyan, #2bb3f0); --dsf-m: var(--ds-magenta, #ff3d9e);
    --dsf-c-text: var(--ds-cyan-text, #2bb3f0); --dsf-m-text: var(--ds-magenta-text, #ff6fb5); --dsf-c-dot: var(--ds-cyan, #2bb3f0); }
}
.dss *, .dss *::before, .dss *::after { box-sizing: border-box; }
.dss-label { margin: 0; font: 700 .72rem/1.3 var(--dsf-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dsf-soft); }
.dss-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .4rem 1rem; align-items: baseline;
  padding-bottom: .6rem; margin-bottom: .8rem; border-bottom: 1px solid var(--dsf-rule); }
.dss-head .dss-live { color: var(--dsf-ink); }
.dss-live::before { content: ""; display: inline-block; width: .5rem; height: .5rem; margin-right: .45rem; background: var(--dsf-c); vertical-align: .05rem; }
.dss-panels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 clamp(.75rem, 1.6vw, 1.1rem); }
.dss-panel { min-width: 0; display: flex; flex-direction: column; }
.dss-plabel { margin: 0 0 .3rem; font: 700 .68rem/1.25 var(--dsf-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--dsf-ink);
  display: flex; gap: .45rem; align-items: baseline; min-height: 1.25em; }
.dss-pn { flex: none; display: inline-flex; align-items: center; justify-content: center; width: 1.15rem; height: 1.15rem; border: 1px solid var(--dsf-ink);
  font-size: .64rem; letter-spacing: 0; transform: translateY(-.05rem); }
.dss-panel canvas { display: block; width: 100%; height: 170px; }
.dss-read { margin: .3rem 0 0; font-size: .8rem; line-height: 1.32; color: var(--dsf-body); font-variant-numeric: tabular-nums; }
.dss-cp { color: var(--dsf-c-text); font-weight: 650; } .dss-cm { color: var(--dsf-m-text); font-weight: 650; }
.dss-k { white-space: nowrap; }
.dss-foot { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem .9rem; margin-top: .55rem; }
.dss-status { margin: 0; font-size: .78rem; color: var(--dsf-soft); }
.dss button { appearance: none; border: 1px solid var(--dsf-ink); border-radius: 0; background: transparent; color: var(--dsf-ink);
  font: 700 .62rem/1.2 var(--dsf-mono); letter-spacing: .1em; text-transform: uppercase; padding: .45rem .6rem; min-height: 32px; cursor: pointer; }
.dss button:hover:not(:disabled) { background: color-mix(in srgb, var(--dsf-ink) 8%, transparent); }
.dss button:disabled { color: var(--dsf-soft); border-color: var(--dsf-hair); border-style: dashed; cursor: default; }
.dss button:focus-visible { outline: 2px solid var(--dsf-ink); outline-offset: 2px; }
.dss-caption { margin: .9rem 0 0; padding-top: .7rem; border-top: 1px solid var(--dsf-rule); font-size: .92rem; color: var(--dsf-body); max-width: 52rem; }
.dss-sr { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
/* one column when the figure itself is narrow (set from its own width, so a narrow column on a wide screen counts) */
.dss.dss-one .dss-panels { grid-template-columns: minmax(0, 1fr); gap: .3rem 0; }
.dss.dss-one .dss-panel { display: grid; grid-template-columns: minmax(0, 1fr); }
.dss.dss-one .dss-plabel { margin-bottom: .15rem; }
.dss.dss-one .dss-read { margin-top: .15rem; font-size: .76rem; line-height: 1.28; }
.dss.dss-one .dss-foot { margin-top: .35rem; }
/* touch: a taller target (the one button stays at 36 px on narrow phones, where the hero has to fit the first screen) */
@media (pointer: coarse) { .dss button { min-height: 44px; } }
@media (pointer: coarse) { .dss.dss-one button { min-height: 36px; padding: .4rem .7rem; } }
.dss button { scroll-margin: 1rem 0; }
/* print: white page, dark ink, the drawn sets keep their colours */
.dss.dss-print { --dsf-paper: #ffffff; --dsf-ink: #1d1d1b; --dsf-body: #2a2926; --dsf-soft: #3c3a36; --dsf-c: #009fe3; --dsf-m: #e6007e;
  --dsf-c-text: #0072b5; --dsf-m-text: #c4006b; --dsf-c-dot: #0072b5; }
@media print {
  .dss { color: #2a2926; }
  .dss button { display: none; }
  .dss, .dss * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .dss canvas { object-fit: contain; }   /* a drawing made at the screen's width keeps its shape at the paper's; its box never changes height */
  .dss-panels { break-inside: avoid; }
}
/* forced colours: the tokens become system colours and the drawings read them */
@media (forced-colors: active) {
  .dss { --dsf-paper: Canvas; --dsf-ink: CanvasText; --dsf-body: CanvasText; --dsf-soft: CanvasText; --dsf-hair: GrayText; --dsf-rule: GrayText;
    --dsf-c-text: CanvasText; --dsf-m-text: CanvasText; }
  .dss canvas { forced-color-adjust: none; }
  .dss-live::before { forced-color-adjust: none; }
  .dss button:disabled { color: GrayText; border-color: GrayText; }
}

/* very large text on a narrow screen (the breakpoint is in rem, so it follows the reader's font size): long formulas may wrap */
@media (max-width: 22rem) { .dss-k { white-space: normal; } }
/* the key to the lines under a sorted screen */
.dss-key { margin: .3rem 0 0; font-size: .74rem; line-height: 1.3; color: var(--dsf-soft); }
.dss-key[hidden] { display: none; }