/* Figure 1. The screen. Every class is prefixed ds1-. 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. */
.ds1 {
  --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) {
  .ds1 { --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); }
}
.ds1 *, .ds1 *::before, .ds1 *::after { box-sizing: border-box; }
.ds1-label { margin: 0; font: 700 .72rem/1.3 var(--dsf-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dsf-soft); }
.ds1-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); }
.ds1-head .ds1-live { color: var(--dsf-ink); }
.ds1-live::before { content: ""; display: inline-block; width: .5rem; height: .5rem; margin-right: .45rem; background: var(--dsf-c); vertical-align: .05rem; }
.ds1-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(190px, 230px); gap: clamp(.9rem, 2vw, 1.4rem); align-items: start; }
.ds1-stage { min-width: 0; }
.ds1-view { display: block; width: 100%; height: 207px; }
.ds1-words { margin: .4rem 0 0; font-size: .86rem; line-height: 1.35; color: var(--dsf-ink); font-variant-numeric: tabular-nums; min-height: 2.7em; }
.ds1-cp { color: var(--dsf-c-text); font-weight: 650; } .ds1-cm { color: var(--dsf-m-text); font-weight: 650; }
.ds1-k { white-space: nowrap; }
.ds1-panel { display: flex; flex-direction: column; gap: .8rem; min-width: 0; padding-top: 14px; }
.ds1-slider { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .1rem .5rem; align-items: baseline;
  font: 700 .66rem/1.3 var(--dsf-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--dsf-ink); }
.ds1-slider output { font: 400 .85rem/1.2 var(--dsf-mono); letter-spacing: .02em; color: var(--dsf-ink); text-transform: none; font-variant-numeric: tabular-nums; }
.ds1-slider input { grid-column: 1 / -1; width: 100%; margin: .25rem 0 0; accent-color: var(--dsf-ink); min-height: 26px; }
.ds1-slider input:focus-visible { outline: 2px solid var(--dsf-ink); outline-offset: 2px; }
.ds1-ends { display: flex; justify-content: space-between; margin: .05rem 0 0; font: 400 .62rem/1.2 var(--dsf-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--dsf-soft); }
.ds1-read { display: flex; flex-direction: column; gap: .35rem; align-items: flex-start; border-top: 1px solid var(--dsf-rule); padding-top: .6rem; }
.ds1-plabel { margin: 0; font: 700 .66rem/1.3 var(--dsf-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--dsf-ink); }
.ds1 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: .5rem .6rem; min-height: 32px; cursor: pointer; text-align: left; }
.ds1 button:hover:not(:disabled) { background: color-mix(in srgb, var(--dsf-ink) 80%, var(--dsf-paper)); }   /* the enabled button is filled: hover lightens the fill, the label stays paper on ink */
.ds1 button:not(:disabled) { background: var(--dsf-ink); color: var(--dsf-paper); }
.ds1 button[aria-pressed="true"] { background: transparent; color: var(--dsf-ink); border-style: solid; }
.ds1 button:disabled:not([aria-pressed="true"]) { color: var(--dsf-soft); border-color: var(--dsf-hair); border-style: dashed; cursor: default; }
.ds1 button:focus-visible { outline: 2px solid var(--dsf-ink); outline-offset: 2px; }
.ds1-note { margin: 0; font-size: .78rem; line-height: 1.32; color: var(--dsf-soft); }
.ds1-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; }
.ds1-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) */
.ds1.ds1-one .ds1-grid { grid-template-columns: minmax(0, 1fr); gap: .35rem; }
.ds1.ds1-one .ds1-words { margin-top: .25rem; font-size: .78rem; min-height: 0; }
.ds1.ds1-one .ds1-panel { padding-top: 0; gap: .45rem; }
.ds1.ds1-one .ds1-read { display: flex; flex-flow: row wrap; gap: .25rem .7rem; align-items: center; padding-top: .45rem; }
.ds1.ds1-one .ds1-read .ds1-plabel { flex: 1 1 100%; }
.ds1.ds1-one .ds1-read .ds1-note { flex: 1 1 5rem; min-width: 0; }
.ds1.ds1-one .ds1-note { font-size: .72rem; }
@media (pointer: coarse) { .ds1 input[type="range"] { min-height: 40px; } .ds1 button { min-height: 40px; } }
.ds1 button, .ds1 input { scroll-margin: 1rem 0; }
.ds1.ds1-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 {
  .ds1 { color: #2a2926; }
  /* prompts that name a control the print leaves out */
  .ds1-prompt { display: none; }
  .ds1-scr { display: none; } .ds1 .ds1-prt { display: inline; }
  .ds1 button, .ds1 input[type="range"], .ds1-ends { display: none; }
  .ds1, .ds1 * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .ds1 canvas { object-fit: contain; }   /* a drawing made at the screen's width keeps its shape at the paper's; its box never changes height */
  .ds1-grid { break-inside: avoid; }
}
@media (forced-colors: active) {
  .ds1 { --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; }
  .ds1 canvas { forced-color-adjust: none; }
  .ds1 button:not(:disabled) { forced-color-adjust: none; background: ButtonText; color: ButtonFace; border-color: ButtonText; }
  .ds1 button:hover:not(:disabled) { background: Highlight; color: HighlightText; border-color: Highlight; }
  .ds1 button:disabled { color: GrayText; border-color: GrayText; }
  .ds1-live::before { forced-color-adjust: none; }
}

/* 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) { .ds1-k { white-space: normal; } }
/* the key to the lines under a sorted screen */
.ds1-key { margin: .3rem 0 0; font-size: .74rem; line-height: 1.3; color: var(--dsf-soft); }
.ds1-key[hidden] { display: none; }
/* the slider's label on screen; in print, where there is no slider, the label names the value */
.ds1-prt { display: none; }