/* Playable Papers no. 2. Same frame as the first (a sheet on a desk, figures with captions, a colophon),
   set like a 1952 journal page and printed in black plus two inks: one per chemical.
   Layout: one sheet, one text column, figures the full width of the sheet. Single light theme by choice. */
:root {
  --desk: #2e3136;
  --paper: #fcfcfb;
  --ink: #14161a;
  --ink-2: #555b65;
  --rule: #d5d8dc;
  --wash: #f2f3f5;
  --act: #d81b7a;           /* ink for the activator */
  --inh: #0093c9;           /* ink for the inhibitor */
  --serif: "Old Standard TT", "Century Schoolbook", "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--desk); color: var(--ink); font: 400 1.14rem/1.56 var(--serif); }
.sheet { background: var(--paper); max-width: 900px; margin: 28px auto; padding: 30px clamp(16px, 7vw, 84px) 40px; box-shadow: 0 2px 30px rgb(0 0 0 / .45); }
@media (max-width: 720px) { .sheet { margin: 0; box-shadow: none; } }
a { color: inherit; text-decoration-color: var(--act); text-underline-offset: 2px; }
a:hover { color: var(--act); }
:focus-visible { outline: 2px solid var(--inh); outline-offset: 2px; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 8px; top: 8px; background: var(--paper); padding: 6px 10px; z-index: 5; }
code { font: 500 .82em var(--mono); }

.running { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font: 400 .72rem/1.4 var(--mono); color: var(--ink-2); letter-spacing: .02em; margin-bottom: 30px; }
.running a { text-decoration: none; }

/* the journal's opening: folio, capitals, author, dates */
.titleblock { text-align: center; padding: 4px 0 18px; border-bottom: 1px solid var(--ink); }
.folio { margin: 0 0 22px; font-size: 1rem; letter-spacing: .08em; }
h1 { margin: 0 auto; max-width: 16em; font: 400 clamp(1.55rem, 5.4vw, 2.7rem)/1.18 var(--serif); letter-spacing: .09em; text-transform: uppercase; text-wrap: balance; }
.author { margin: 20px 0 0; font-size: 1.05rem; letter-spacing: .05em; font-variant: small-caps; }
.author span { font-variant: normal; font-style: italic; letter-spacing: 0; margin-left: .4em; }
.dates { margin: 8px 0 0; font-size: .9rem; font-style: italic; }
.byline { text-align: center; color: var(--ink-2); font-size: .9rem; line-height: 1.5; margin: 16px auto 0; max-width: 56ch; }

.abstract { max-width: 62ch; margin: 30px auto; }
.abstract h2 { position: absolute; left: -999px; }
.abstract p { margin: 0; font-size: 1.02rem; line-height: 1.52; }

section > h2 { font: 400 1.3rem/1.25 var(--serif); letter-spacing: .03em; font-variant: small-caps; margin: 44px 0 10px; text-wrap: balance; }
section > h2 .num { display: inline-block; min-width: 1.4em; font-variant: normal; }
section > p { max-width: 66ch; margin: 0 0 14px; }
q { quotes: "“" "”"; }
.eq { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; max-width: 66ch; margin: 16px 0; font-size: 1.05rem; overflow-x: auto; }
.eq span:first-child { white-space: nowrap; }
.eqn { color: var(--ink-2); }

/* figures */
.fig { margin: 26px 0 30px; }
.fig-body { background: var(--wash); border: 1px solid var(--rule); border-radius: 3px; padding: clamp(12px, 3vw, 22px); }
figcaption { font-size: .93rem; line-height: 1.45; margin-top: 9px; max-width: 74ch; }
.fig-split { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 720px) { .fig-split { grid-template-columns: 1fr; } }

.dishcol { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.dishwrap { position: relative; }
.dishwrap::after { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px dashed rgb(20 22 26 / .55); pointer-events: none; }
#dish { display: block; aspect-ratio: 1; border-radius: 50%; border: 2px solid var(--ink); background: var(--paper); cursor: crosshair; touch-action: pan-y; box-shadow: 0 0 0 6px var(--paper), 0 0 0 7px var(--rule); margin: 7px; width: calc(100% - 14px); }
#slice { display: block; width: 100%; height: 120px; background: var(--paper); border: 1px solid var(--rule); border-radius: 2px; }
.axis { margin: 0; font: 500 .66rem/1.5 var(--mono); letter-spacing: .07em; text-transform: uppercase; color: var(--ink-2); }
.key { white-space: nowrap; margin-left: .6em; } .key::before { content: ""; display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 5px; background: var(--c); }
.key.a { --c: var(--act); } .key.b { --c: var(--inh); }

.panel { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.group { display: flex; flex-direction: column; gap: 6px; }
.lab { font: 500 .66rem/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
.row { display: flex; flex-wrap: wrap; gap: 6px; }
.btn { font: 500 .78rem/1 var(--mono); color: var(--ink); background: var(--paper); border: 1px solid var(--ink); border-radius: 3px; padding: 9px 11px; cursor: pointer; }
.btn:hover { box-shadow: inset 0 0 0 1px var(--ink); }
.btn:active { transform: translateY(1px); }
.btn[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.btn.toggle[aria-pressed="true"] { background: var(--act); border-color: var(--act); color: #fff; text-decoration: line-through; }
.slider { display: flex; flex-direction: column; gap: 4px; font: 500 .8rem/1.3 var(--mono); }
.slider output { font-weight: 600; }
.slider input { width: 100%; accent-color: var(--ink); margin: 0; height: 24px; }
.verdict { margin: 0; font-size: .98rem; line-height: 1.4; min-height: 2.8em; }
.verdict b { font-weight: 700; }

#ring { display: block; width: 100%; max-width: 380px; margin: 0 auto; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart text { font: 500 10.5px var(--mono); fill: var(--ink-2); }

.colophon { border-top: 1px solid var(--ink); margin-top: 50px; }
.colophon h2 { font-size: 1.1rem; margin-top: 18px; }
.colophon p { font-size: .95rem; line-height: 1.5; max-width: 74ch; }
.pageno { text-align: center; font-size: .95rem; margin-top: 34px; color: var(--ink-2); }
.noscript { max-width: 900px; margin: 0 auto 28px; padding: 12px 16px; background: var(--paper); font-size: .95rem; }