/* the book: the paper stock, type and running head shared by Research and About.
   Cormorant Garamond + Cormorant SC on laid almanac paper; one rubric colour (About swaps the inks). */
:root{
  --paper:#F1E9D6; --plate:#F7F2E6; --ink:#1E1A15; --ink-2:#554B3E; --ink-3:#8A7E6B;
  --hair:rgba(30,26,21,.55); --faint:rgba(30,26,21,.13); --rubric:#A1291C;
  --serif:"Cormorant Garamond","EB Garamond",Garamond,"Palatino Linotype",Palatino,Georgia,serif;
  --sc:"Cormorant SC","Cormorant Garamond",Garamond,Georgia,serif;
  --rh:43.2px;
  --laid:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='f'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .32 0 0 0 0 .24 0 0 0 0 .13 0 0 0 .1 0'/></filter><pattern id='l' width='4' height='4' patternUnits='userSpaceOnUse'><rect width='4' height='1' fill='%23523c1e' fill-opacity='.03'/></pattern><rect width='240' height='240' filter='url(%23f)'/><rect width='240' height='240' fill='url(%23l)'/><rect x='118' width='1.4' height='240' fill='%23523c1e' fill-opacity='.02'/></svg>");
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--rh) + 16.2px);scroll-behavior:smooth}
html.rv-reduced{scroll-behavior:auto}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;color:var(--ink);background:var(--paper) var(--laid);font-family:var(--serif);font-weight:500;font-size:18px;line-height:1.5;
  font-variant-numeric:oldstyle-nums proportional-nums;font-kerning:normal;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  padding-bottom:var(--rv-reserve)}
@media (max-width:576px){body{font-size:16.7px;line-height:1.48}}
.sc{font-family:var(--sc);font-weight:600;letter-spacing:.04em}
a{color:inherit;text-decoration:underline;text-decoration-thickness:1px;text-decoration-color:rgba(30,26,21,.34);text-decoration-color:color-mix(in srgb,var(--ink) 34%,transparent);text-underline-offset:.16em}
a:hover{color:var(--rubric);text-decoration-color:var(--rubric)}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible,canvas:focus-visible{outline:2px solid var(--rubric);outline-offset:2.7px;border-radius:2px}
button{font:inherit;color:inherit}

/* ===== running head: sticky, thin ===== */
.rh{position:sticky;top:0;z-index:40;background:var(--paper) var(--laid)}
.rh::after{content:"";position:absolute;left:0;right:0;bottom:-3.6px;height:3.6px;border-top:1px solid var(--hair);border-bottom:.5px solid var(--hair);background:var(--paper);pointer-events:none}
.rh-bar{height:var(--rh);display:flex;align-items:center;gap:16.2px;width:min(1062px,100% - 28.8px);margin:0 auto}
.rh-t{font-family:var(--sc);font-weight:600;font-size:13.5px;letter-spacing:.2em;white-space:nowrap;text-decoration:none}
.rh-nav{flex:1;display:flex;gap:3.6px;overflow-x:auto;scrollbar-width:none;justify-content:center;min-width:0}
.rh-nav::-webkit-scrollbar{display:none}
.rh-nav a{flex:none;text-decoration:none;font-size:15.8px;padding:5.4px 9px;white-space:nowrap;font-style:italic}
.rh-nav a .n{font-style:normal;font-family:var(--sc);font-size:12.6px;color:var(--rubric);margin-right:4.5px}
.rh-nav a[aria-current="true"]{box-shadow:inset 0 -1.5px 0 var(--rubric)}
@media (max-width:684px){.rh-t{display:none}.rh-nav{justify-content:flex-start}.rh-bar{gap:7.2px;width:calc(100% - 18px)}.rh-nav a{padding:5.4px 6.3px;font-size:14.8px}}
@media (max-width:378px){.rh-nav a .n{display:none}}

/* ===== title page & chapters ===== */
.wrap{width:min(1062px,100% - 36px);margin:0 auto}
header.tp{padding:48.6px 0 16.2px;display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:25.2px 57.6px;align-items:end;border-bottom:1px solid var(--hair)}
.tp-k{margin:0;font-family:var(--sc);font-weight:600;font-size:13.5px;letter-spacing:.24em;color:var(--ink-2)}
.tp h1{margin:.1em 0 .05em;font-weight:600;font-size:clamp(45px,7vw,82.8px);line-height:.95;letter-spacing:-.01em}
.tp h1 i{font-weight:500}
.tp-sub{margin:.4em 0 0;font-size:clamp(18px,2vw,21.6px);font-style:italic;color:var(--ink-2);max-width:32em;line-height:1.4}
.toc{list-style:none;margin:0;padding:0;font-size:17.1px}
.toc li{display:flex;align-items:baseline;gap:.4em}
.toc a{text-decoration:none;display:flex;align-items:baseline;gap:.45em;flex:1;padding:2px 0}
.toc a:hover .t{color:var(--rubric)}
.toc .n{font-family:var(--sc);color:var(--rubric);font-size:.82em;min-width:1.7em}
.toc .ld{flex:1;min-width:1.5em;height:1em;margin-bottom:.28em;align-self:flex-end;background:radial-gradient(circle,var(--ink-3) .75px,transparent 1.1px) 0 100%/6.3px 3.6px repeat-x}
.toc .p{font-style:italic;color:var(--ink-2);font-size:.9em}
@media (max-width:810px){header.tp{grid-template-columns:1fr;gap:16.2px;padding-top:30.6px}}
section.ch{padding:50.4px 0 18px;border-bottom:1px solid var(--faint)}
.ch-h{display:flex;align-items:baseline;gap:14.4px;margin:0 0 19.8px;flex-wrap:wrap}
.ch-h .num{font-family:var(--sc);font-weight:700;font-size:18px;color:var(--rubric);letter-spacing:.08em}
.ch-h h2{margin:0;font-family:var(--sc);font-weight:600;font-size:clamp(25.2px,3.2vw,34.2px);letter-spacing:.1em;line-height:1.1}
footer.colo{padding:32.4px 0 27px;text-align:center;font-size:14.4px;color:var(--ink-2);font-style:italic}
footer.colo .orn{display:block;font-style:normal;color:var(--rubric);letter-spacing:.6em;margin-bottom:5.4px}