/* =====================================================================
   Source layer: document reader (/docs/<path>/) and archive (/docs/)
   Prefixes: rd- reader, dx- archive index. Depth 3 = purple.
   ===================================================================== */

.rd, .dx {
  --rd-top: calc(var(--header-h) + 3px);
  --rd-h3: clamp(23px, 2vw, 30px);
  --rd-ink: var(--purple-ink);
  --rd-fill: var(--purple);
  --rd-seg: #262626;
}

/* ---------------------------------------------------------------------
   Hero
   --------------------------------------------------------------------- */
.rd-hero { padding-block: clamp(36px, 5vw, 72px) clamp(40px, 5vw, 64px); position: relative; }
.rd-hero::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 520px; background: radial-gradient(55% 70% at 88% 0%, rgba(100, 13, 95, 0.32), transparent 70%); pointer-events: none; z-index: -1; }
.rd-hero__kick { margin-bottom: clamp(18px, 2.4vw, 28px); }
.rd-title { font-family: var(--font-display); font-weight: 400; margin: 0; }
.rd-title__pre { display: block; font: 400 clamp(19px, 2vw, 30px)/1.1 var(--font-display); letter-spacing: -0.025em; color: var(--ink-3); margin-bottom: 0.45em; }
.rd-title__main { display: block; text-wrap: balance; color: var(--ink); }
.rd-title--xl .rd-title__main { font-size: clamp(52px, 9vw, 148px); line-height: 0.9; letter-spacing: var(--track-display); max-width: 14ch; }
.rd-title--l .rd-title__main { font-size: clamp(42px, 6.2vw, 100px); line-height: 0.93; letter-spacing: -0.05em; max-width: 18ch; }
.rd-title--m .rd-title__main { font-size: clamp(36px, 4.6vw, 72px); line-height: 0.98; letter-spacing: var(--track-head); max-width: 24ch; }

.rd-hero__grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 28px clamp(32px, 5vw, 88px); margin-top: clamp(36px, 4.5vw, 64px); align-items: end; }
.rd-ledger { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; margin: 0; }
.rd-ledger > div { padding: 14px 0; border-top: 1px solid var(--line); min-width: 0; }
.rd-ledger dt { font: 500 11px/1.3 var(--font-mono); letter-spacing: 0.05em; color: var(--rd-ink); margin-bottom: 6px; }
.rd-ledger dd { margin: 0; font: 400 14px/1.45 var(--font-mono); color: var(--ink); overflow-wrap: anywhere; }
.rd-ledger dd a { color: var(--ink); text-decoration-color: var(--line-2); }
.rd-ledger dd a:hover { color: var(--amber); }
.rd-ledger dd code { font-size: 13px; color: inherit; }
.rd-ledger__sub { color: var(--ink-3); }
.rd-ledger__sub a { color: var(--ink-2) !important; }
.rd-hero__up .deeper { border-bottom: 1px solid var(--line); }
.rd-hero__up .deeper__note { grid-column: 2 / 4; }

/* document map: chapters as one segmented bar, as long as they are */
.rd-map { margin-top: clamp(40px, 5vw, 72px); }
.rd-map__label { display: flex; justify-content: space-between; gap: 16px; font: 500 11px/1.3 var(--font-mono); letter-spacing: 0.05em; color: var(--rd-ink); margin: 0 0 10px; }
.rd-map__hint { color: var(--ink-3); font-weight: 400; letter-spacing: 0; text-align: right; }
.rd-map__bar { display: flex; gap: 3px; height: clamp(46px, 5vw, 72px); list-style: none; padding: 0; margin: 0; }
.rd-map__bar li { flex: var(--len) 1 0; min-width: 26px; position: relative; }
.rd-map__bar a { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: space-between; padding: 8px 9px; background: var(--rd-seg); color: var(--ink-2); text-decoration: none; overflow: hidden; transition: background 0.25s, color 0.25s; }
.rd-map__bar li:first-child a { border-radius: 3px 0 0 3px; }
.rd-map__bar li:last-child a { border-radius: 0 3px 3px 0; }
.rd-map__fill { position: absolute; inset: 0; background: var(--rd-fill); transform-origin: left center; transform: scaleX(var(--p, 0)); z-index: 0; transition: transform 0.2s linear; }
.rd-map__n, .rd-map__t { position: relative; z-index: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rd-map__n { font: 500 11.5px/1 var(--font-mono); color: var(--ink); }
.rd-map__t { font: 400 12.5px/1.2 var(--font-text); letter-spacing: -0.005em; }
.rd-map__bar a:hover { background: #333; color: var(--ink); }
.rd-map__bar a:hover .rd-map__fill { background: color-mix(in srgb, var(--purple) 80%, var(--crimson)); }
.rd-map__bar a.is-here { box-shadow: inset 0 -3px 0 var(--amber); color: var(--ink); }
@media (max-width: 720px) {
  .rd-map__t { display: none; }
  .rd-map__bar { gap: 2px; }
  .rd-map__bar li { min-width: 20px; }
  .rd-map__bar a { padding: 6px 4px; justify-content: flex-start; }
  .rd-map__n { font-size: 10.5px; text-overflow: clip; }
  .rd-map__hint { display: none; }
}

/* fixed reading-progress strip (desktop) */
.rd-strip { position: fixed; top: var(--rd-top); left: 0; right: 0; height: 4px; display: flex; gap: 2px; z-index: 95; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.rd-strip.is-on { opacity: 1; }
.rd-strip i { flex: var(--len) 1 0; position: relative; background: rgba(255, 255, 255, 0.07); }
.rd-strip b { position: absolute; inset: 0; background: var(--rd-ink); transform-origin: left center; transform: scaleX(var(--p, 0)); }
@media (max-width: 1080px) { .rd-strip { display: none; } }

/* ---------------------------------------------------------------------
   Layout: contents rail + article
   --------------------------------------------------------------------- */
.rd-layout { display: grid; grid-template-columns: 236px minmax(0, 1fr); column-gap: clamp(36px, 4.2vw, 76px); align-items: start; padding-bottom: clamp(64px, 8vw, 120px); }
.rd-layout--single { grid-template-columns: minmax(0, 1fr); }
.rd-article { min-width: 0; container-type: inline-size; position: relative; }

/* rail (desktop) */
.rd-rail { position: sticky; top: calc(var(--rd-top) + 28px); align-self: start; max-height: calc(100vh - var(--rd-top) - 44px); overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; scrollbar-color: var(--bg-raise-2) transparent; padding: 4px 6px 24px 0; }
.rd-rail__head { display: flex; align-items: baseline; gap: 12px; padding-bottom: 12px; margin-bottom: 6px; border-bottom: 1px solid var(--line); }
.rd-rail__label { font: 500 11px/1 var(--font-mono); letter-spacing: 0.05em; color: var(--rd-ink); margin: 0; }
.rd-rail__pct { font: 400 11px/1 var(--font-mono); color: var(--ink-3); margin-left: auto; font-variant-numeric: tabular-nums; }
.rd-rail__close { display: none; font: 500 12px/1 var(--font-mono); color: var(--ink-2); padding: 10px 4px; }
.rd-toc, .rd-toc ol { list-style: none; margin: 0; padding: 0; }
.rd-toc a { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 6px; align-items: baseline; padding: 6px 4px 6px 12px; border-left: 2px solid var(--line); text-decoration: none; color: var(--ink-3); transition: color 0.2s, border-color 0.2s; }
.rd-toc a:hover { color: var(--ink); border-left-color: var(--line-2); }
.rd-toc__n { font: 500 10.5px/1.3 var(--font-mono); color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: clip; }
.rd-toc__t { font: 400 13.5px/1.32 var(--font-text); letter-spacing: -0.005em; }
.rd-toc__ch > a { padding-block: 8px; }
.rd-toc__subs a { padding-left: 22px; grid-template-columns: 30px minmax(0, 1fr); }
.rd-toc__subs .rd-toc__t { font-size: 12.5px; }
.rd-toc li.is-read > a { color: var(--ink-2); }
.rd-toc li.is-read > a .rd-toc__n { color: var(--ink-2); }
.rd-toc li.is-active > a { color: var(--ink); border-left-color: var(--rd-ink); }
.rd-toc__ch.is-active > a { background: linear-gradient(90deg, rgba(213, 139, 224, 0.13) calc(var(--p, 0) * 100%), rgba(255, 255, 255, 0.025) 0); }
.rd-toc li.is-active > a .rd-toc__n { color: var(--rd-ink); }
.rd-toc__subs li.is-active > a { border-left-color: var(--amber); }
.js .rd-toc__ch:not(.is-open) > .rd-toc__subs { display: none; }
.rd-toc--dense .rd-toc__ch > a { padding-block: 4px; }
.rd-toc__ch--end > a .rd-toc__n { color: var(--rd-ink); }

.rd-rail__tools { display: grid; gap: 4px; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); }
.rd-rail__tool { justify-self: start; font: 400 11.5px/1.3 var(--font-mono); color: var(--ink-3); text-decoration: none; padding: 6px 0; text-align: left; }
.rd-rail__tool:hover { color: var(--ink); }
.rd-rail__tool kbd { font-size: 10.5px; padding: 0 4px; border: 1px solid var(--line-2); border-radius: 3px; }

.rd-switch { display: inline-flex; align-items: center; gap: 10px; font: 400 11.5px/1.3 var(--font-mono); color: var(--ink-2); cursor: pointer; padding: 6px 0; user-select: none; }
.rd-switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.rd-switch__ui { width: 28px; height: 16px; border-radius: 99px; background: var(--bg-raise-2); position: relative; transition: background 0.2s; flex: none; }
.rd-switch__ui::after { content: ""; position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; border-radius: 50%; background: var(--ink-3); transition: transform 0.2s var(--ease), background 0.2s; }
.rd-switch input:checked + .rd-switch__ui { background: var(--purple); }
.rd-switch input:checked + .rd-switch__ui::after { transform: translateX(12px); background: #fff; }
.rd-switch input:focus-visible + .rd-switch__ui { outline: 2px solid var(--amber); outline-offset: 2px; }

/* mobile contents bar */
.rd-mbar { display: none; }
.rd-scrim[hidden] { display: none; }

@media (max-width: 1080px) {
  .rd-layout { grid-template-columns: minmax(0, 1fr); }
  .rd-mbar { display: block; position: sticky; top: var(--rd-top); z-index: 60; margin-inline: calc(var(--gutter) * -1); margin-bottom: 8px; background: color-mix(in srgb, var(--bg) 90%, transparent); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-block: 1px solid var(--line); }
  .rd-mbar__btn { display: flex; align-items: center; gap: 12px; width: 100%; min-height: 48px; padding: 0 var(--gutter); text-align: left; }
  .rd-mbar__k { font: 500 11px/1 var(--font-mono); letter-spacing: 0.05em; color: var(--rd-ink); flex: none; }
  .rd-mbar__cur { flex: 1; min-width: 0; font: 400 14.5px/1.2 var(--font-text); color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .rd-mbar__pct { font: 400 11px/1 var(--font-mono); color: var(--ink-3); flex: none; font-variant-numeric: tabular-nums; }
  .rd-mbar__fill { position: absolute; left: 0; bottom: -1px; height: 2px; width: 100%; background: var(--rd-ink); transform-origin: left; transform: scaleX(var(--p, 0)); }

  .rd-rail { position: fixed; top: auto; left: 0; right: 0; bottom: 0; z-index: 130; max-height: min(78vh, 680px); padding: 0 var(--gutter) calc(24px + env(safe-area-inset-bottom)); background: var(--bg-raise); border-radius: 14px 14px 0 0; box-shadow: 0 -20px 60px rgba(0, 0, 0, 0.5); transform: translateY(105%); visibility: hidden; transition: transform 0.38s var(--ease-out), visibility 0s linear 0.38s; }
  .rd-rail.is-open { transform: none; visibility: visible; transition: transform 0.38s var(--ease-out); }
  .rd-rail__head { position: sticky; top: 0; background: var(--bg-raise); padding-top: 14px; z-index: 1; }
  .rd-rail__close { display: block; }
  .rd-toc a { padding-block: 10px; }
  .rd-toc__subs a { padding-block: 8px; }
  .js .rd-toc__ch:not(.is-open) > .rd-toc__subs { display: block; }
  .rd-scrim { position: fixed; inset: 0; z-index: 129; background: rgba(0, 0, 0, 0.6); }
  html:has(.rd-mbar) { scroll-padding-top: calc(var(--header-h) + 3px + 50px + 20px); }
}
@media (prefers-reduced-motion: reduce) { .rd-rail { transition: none !important; } }

/* ---------------------------------------------------------------------
   Prose: long-form reading on dark
   --------------------------------------------------------------------- */
.rd .prose { max-width: none; color: #cbcbcb; }
.rd-intro { padding-bottom: clamp(16px, 2vw, 24px); }
.rd-intro > hr:last-child { display: none; }
.rd-intro > p { font-size: 18.5px; line-height: 1.6; color: #dedede; }
.rd-intro--meta > p:first-child { font: 400 13px/1.6 var(--font-mono); color: var(--ink-3); }
.rd-intro--meta > p:first-child strong { color: var(--ink-2); font-weight: 500; }
.rd-intro--meta > p:first-child code { color: var(--ink-2); }
.rd-intro--meta > p:first-child a.doclink { text-decoration-color: var(--line-2); }

.rd-ch { position: relative; margin-top: clamp(48px, 5.5vw, 84px); padding-top: clamp(40px, 4.5vw, 68px); }
.rd-ch::before { content: ""; position: absolute; top: 0; left: 0; width: min(100%, 700px); height: 1px; background: var(--line); }
.rd-ch::after { content: ""; position: absolute; top: -1px; left: 0; width: 56px; height: 3px; background: var(--stripes); }
.rd .prose h2 { margin-top: 0; margin-bottom: 0.35em; font: 400 clamp(34px, 3.9vw, 58px)/1 var(--font-display); letter-spacing: -0.045em; color: var(--ink); text-wrap: balance; }
.rd .prose h3 { margin-top: 2em; font: 400 var(--rd-h3)/1.15 var(--font-display); letter-spacing: -0.03em; color: var(--ink); text-wrap: balance; }
.rd .prose h4 { margin-top: 1.8em; font: 700 17px/1.35 var(--font-display); letter-spacing: -0.01em; }
.rd .prose h2, .rd .prose h3, .rd .prose h4 { position: relative; }
.rd .prose h2 .rd-hn { display: block; font: 500 12.5px/1 var(--font-mono); letter-spacing: 0.04em; color: var(--rd-ink); margin-bottom: 18px; }
.rd .prose h2 .rd-hn::before { content: "§ "; }
.rd .prose h3 .rd-hn, .rd .prose h4 .rd-hn { font: 500 0.56em/1 var(--font-mono); letter-spacing: 0.02em; color: var(--rd-ink); margin-right: 0.45em; vertical-align: 0.24em; }
.rd .prose p, .rd .prose li { text-wrap: pretty; }
.rd .prose li > strong:first-child { color: var(--ink); }
.rd .prose ol > li::marker { color: var(--rd-ink); font-family: var(--font-mono); font-size: 0.86em; }
.rd .prose hr { margin: 2.6em 0; max-width: 700px; }
.rd .prose blockquote { border-left-color: var(--rd-ink); background: rgba(255, 255, 255, 0.025); padding: 14px 18px; border-radius: 0 4px 4px 0; }
.rd .prose pre { background: var(--bg-deep); border: 1px solid var(--line); border-left: 3px solid var(--rd-ink); border-radius: 4px; padding: 16px 20px; overflow-x: auto; font: 400 13.5px/1.6 var(--font-mono); color: var(--ink); }
.rd .prose pre code { background: none; color: inherit; padding: 0; font-size: inherit; }
.rd .prose a.ext.doi::after, .rd .prose a.ext.arxiv::after { margin-left: 0.2em; }
/* repo file mentions: light mono links instead of heavy code chips */
.rd .prose a.doclink code, .rd .prose code { background: none; padding: 0; border-radius: 0; color: var(--amber-ink); font-size: 0.84em; letter-spacing: -0.01em; }
.rd .prose a.doclink { text-decoration: underline dotted color-mix(in srgb, var(--amber) 70%, transparent); text-underline-offset: 0.22em; }
.rd .prose a.doclink:hover code { color: var(--ink); }
.rd .prose a.rd-xref { color: inherit; text-decoration: underline dotted var(--purple-ink); text-underline-offset: 0.22em; }
.rd .prose a.rd-xref:hover { color: var(--purple-ink); }

/* two-column article (text + margin) when the article is wide enough */
@container (min-width: 940px) {
  .rd-ch, .rd-intro { display: grid; grid-template-columns: minmax(0, 700px) minmax(0, 1fr); column-gap: 56px; align-content: start; }
  .rd-ch > *, .rd-intro > * { grid-column: 1; }
  .rd-ch > .table-wrap, .rd-ch > .rd-table, .rd-intro > .table-wrap, .rd-intro > .rd-table { grid-column: 1 / -1; }
  .rd-ch > .rd-note { grid-column: 2; grid-row: span 3; align-self: start; margin-top: 0; }
  .rd-ch > h3 + .rd-note { margin-top: calc(var(--rd-h3) * 2 + 4px); }
  .rd-ch > h2 + .rd-note { margin-top: 30px; }
}
@container (max-width: 939px) {
  .rd .prose > .rd-note { margin-top: 10px; }
}

/* section backlink note */
.rd-note { display: grid; gap: 6px; font: 400 12px/1.45 var(--font-mono); padding: 10px 0 10px 14px; border-left: 2px solid color-mix(in srgb, var(--purple-ink) 55%, transparent); max-width: 300px; }
.rd-note__k { font-weight: 500; font-size: 10.5px; letter-spacing: 0.05em; color: var(--rd-ink); }
.rd-note a { color: var(--ink-2); text-decoration: none; }
.rd-note a:hover { color: var(--amber); }

/* heading anchor (copy link) */
.rd-anchor { display: inline-flex; align-items: center; justify-content: center; margin-left: 0.4em; width: 1.5em; height: 1.5em; font: 500 13px/1 var(--font-mono); color: var(--ink-3); border: 1px solid var(--line); border-radius: 3px; vertical-align: 0.3em; opacity: 0; transition: opacity 0.2s, color 0.2s, border-color 0.2s; }
.rd .prose h3 .rd-anchor { vertical-align: 0.15em; }
.rd .prose h2:hover .rd-anchor, .rd .prose h3:hover .rd-anchor, .rd .prose h4:hover .rd-anchor, .rd-anchor:focus-visible { opacity: 1; }
.rd-anchor:hover { color: var(--rd-ink); border-color: var(--rd-ink); }
@media (hover: none) { .rd-anchor { opacity: 0.55; } }

/* landing highlight */
.rd-secmark { position: absolute; left: -22px; right: -18px; border-left: 3px solid var(--rd-ink); background: linear-gradient(90deg, rgba(213, 139, 224, 0.13), rgba(213, 139, 224, 0.03) 60%, transparent); pointer-events: none; z-index: -1; border-radius: 0 6px 6px 0; animation: rdMark 3.4s var(--ease) forwards; }
@keyframes rdMark { 0% { opacity: 0; } 8% { opacity: 1; } 70% { opacity: 1; } 100% { opacity: 0; } }
@media (max-width: 720px) { .rd-secmark { left: -12px; right: -8px; } }
@media (prefers-reduced-motion: reduce) { .rd-secmark { animation: rdMarkStill 4s steps(1) forwards; } @keyframes rdMarkStill { 0% { opacity: 1; } 100% { opacity: 0; } } }
.rd .prose :target { scroll-margin-top: calc(var(--rd-top) + 24px); }

/* glossary hints + search hits */
.rd-article .term { border-bottom-color: color-mix(in srgb, var(--amber) 55%, transparent); }
mark.rd-hit { background: rgba(255, 178, 0, 0.26); color: var(--ink); border-radius: 2px; padding: 0 1px; box-shadow: 0 0 0 1px rgba(255, 178, 0, 0.35); }
mark.rd-hit.is-cur { background: var(--amber); color: #121212; box-shadow: 0 0 0 3px rgba(255, 178, 0, 0.35); }
.rd-hits { position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom)); transform: translateX(-50%); z-index: 110; display: flex; align-items: center; gap: 4px; padding: 6px 6px 6px 14px; background: var(--paper-2); color: var(--paper-ink); border-radius: 99px; box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5); font: 500 12px/1 var(--font-mono); max-width: calc(100vw - 32px); }
.rd-hits__q { max-width: 36vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--purple); }
.rd-hits__n { color: var(--paper-ink-2); margin: 0 6px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.rd-hits button { width: 34px; height: 34px; border-radius: 50%; display: inline-grid; place-items: center; font: 500 14px/1 var(--font-mono); }
.rd-hits button:hover { background: rgba(0, 0, 0, 0.08); }
.rd-toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translate(-50%, 12px); z-index: 120; padding: 10px 14px; background: var(--paper-2); color: var(--paper-ink); border-radius: 4px; font: 500 12px/1 var(--font-mono); opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s var(--ease); }
.rd-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ---------------------------------------------------------------------
   Tables: breakout, fit/scroll, sticky first column, floating header
   --------------------------------------------------------------------- */
.rd .prose .table-wrap { margin-block: 1.8em; }
.rd-table { margin: 2em 0 2.2em; position: relative; min-width: 0; }
.rd .prose > .rd-table { margin-top: 2em; }
.rd-table .table-wrap { margin: 0 !important; position: relative; }
.rd-table__bar { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px; margin-bottom: 8px; font: 500 11px/1.3 var(--font-mono); letter-spacing: 0.04em; color: var(--ink-3); }
.rd-table__label { color: var(--rd-ink); }
.rd-table__meta { color: var(--ink-3); font-weight: 400; letter-spacing: 0; }
.rd-table__tools { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.rd-seg[hidden] { display: none; }
.rd-seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: 3px; overflow: hidden; }
.rd-seg button, .rd-tbtn { font: 500 11px/1 var(--font-mono); letter-spacing: 0.04em; color: var(--ink-2); padding: 8px 10px; min-height: 32px; }
.rd-seg button + button { border-left: 1px solid var(--line-2); }
.rd-seg button[aria-pressed="true"] { background: var(--ink); color: #121212; }
.rd-seg button:hover:not([aria-pressed="true"]) { color: var(--ink); background: rgba(255, 255, 255, 0.05); }
.rd-tbtn { border: 1px solid var(--line-2); border-radius: 3px; display: inline-flex; align-items: center; gap: 6px; }
.rd-tbtn:hover { color: var(--ink); border-color: var(--ink-3); }
.rd-table__scrollhint { display: none; color: var(--ink-3); font-weight: 400; letter-spacing: 0; }
.rd-table.is-overflow .rd-table__scrollhint { display: inline; }

.rd-article .table-wrap table, .rd-tdlg table { table-layout: fixed; }
.rd-article .table-wrap th, .rd-tdlg th { white-space: normal; line-height: 1.3; }
.rd-article .table-wrap td, .rd-tdlg td { min-width: 0; overflow-wrap: break-word; }
.rd-table[data-squeeze="true"] td { hyphens: auto; }
.rd-article .table-wrap td:first-child, .rd-tdlg td:first-child { min-width: 0; }
.rd-article .table-wrap table { font-size: 13.5px; }
.rd-table[data-squeeze="true"] table { font-size: 12.5px; }
.rd-table[data-squeeze="true"] td, .rd-table[data-squeeze="true"] th { padding: 10px 10px; }
.rd-article .table-wrap td.num, .rd-article .table-wrap th.num, .rd-tdlg td.num, .rd-tdlg th.num { text-align: right; font-variant-numeric: tabular-nums; }
.rd-estm { color: var(--ink-3); font-size: 0.86em; white-space: nowrap; }
.rd-article .table-wrap tr.is-total td, .rd-tdlg tr.is-total td { border-top: 1px solid var(--line-2); background: rgba(255, 255, 255, 0.03); color: var(--ink); }

/* sticky first column(s) while scrolling sideways */
.rd-table.is-overflow .table-wrap .sticky-c,
.rd-tdlg .sticky-c { position: sticky; left: var(--sl, 0); z-index: 2; background: var(--bg-deep); }
.rd-table.is-overflow .table-wrap th.sticky-c, .rd-tdlg th.sticky-c { background: var(--bg-raise); z-index: 3; }
.rd-table.is-overflow .table-wrap tr:hover td.sticky-c { background: #1b1b1b; }
.rd-table.is-overflow .table-wrap .sticky-last, .rd-tdlg .sticky-last { box-shadow: 1px 0 0 var(--line-2); }
.rd-table.is-scrolled .table-wrap .sticky-last, .rd-tdlg.is-scrolled .sticky-last { box-shadow: 1px 0 0 var(--line-2), 10px 0 18px -8px rgba(0, 0, 0, 0.75); }
.rd-table__fade { position: absolute; top: 1px; right: 1px; bottom: 1px; width: 56px; border-radius: 0 6px 6px 0; background: linear-gradient(90deg, transparent, rgba(18, 18, 18, 0.92)); pointer-events: none; opacity: 0; transition: opacity 0.2s; z-index: 4; }
.rd-table.is-overflow:not(.is-end) .rd-table__fade { opacity: 1; }

/* floating header row that follows the reader down a long table */
.rd-table__float { position: sticky; top: var(--rd-stick, var(--rd-top)); height: 0; z-index: 6; }
.rd-table__float-in { overflow: hidden; border: 1px solid var(--line-2); border-radius: 0 0 4px 4px; background: var(--bg-raise); box-shadow: 0 10px 24px rgba(0, 0, 0, 0.45); opacity: 0; visibility: hidden; transition: opacity 0.15s; }
.rd-table__float.is-on .rd-table__float-in { opacity: 1; visibility: visible; }
.rd-table__float table { border-collapse: collapse; table-layout: fixed; font: 400 13.5px/1.55 var(--font-text); }
.rd-table__float th { text-align: left; font: 500 11.5px/1.3 var(--font-mono); letter-spacing: 0.03em; text-transform: uppercase; color: var(--amber); padding: 10px 14px; background: var(--bg-raise); vertical-align: bottom; white-space: normal; }
.rd-table__float th.sticky-c { position: sticky; left: var(--sl, 0); z-index: 2; }
.rd-table[data-squeeze="true"] .rd-table__float th { padding: 10px; }

/* expanded table dialog */
.rd-tdlg { position: fixed; inset: 0; width: 100vw; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: var(--bg-deep); color: var(--ink); overflow: hidden; }
.rd-tdlg::backdrop { background: rgba(0, 0, 0, 0.7); }
.rd-tdlg[open] { display: grid; grid-template-rows: auto minmax(0, 1fr); }
.rd-tdlg__bar { display: flex; align-items: center; gap: 12px 20px; flex-wrap: wrap; padding: 12px clamp(14px, 2vw, 28px); border-bottom: 1px solid var(--line); background: var(--bg); }
.rd-tdlg__t { font: 500 12px/1.3 var(--font-mono); letter-spacing: 0.04em; color: var(--rd-ink, var(--purple-ink)); }
.rd-tdlg__s { font: 400 15px/1.3 var(--font-text); color: var(--ink); flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rd-tdlg__close { font: 500 12px/1 var(--font-mono); color: var(--ink); padding: 10px 12px; border: 1px solid var(--line-2); border-radius: 3px; }
.rd-tdlg__close:hover { border-color: var(--ink); }
.rd-tdlg__body { overflow: auto; overscroll-behavior: contain; }
.rd-tdlg__body table { border-collapse: separate; border-spacing: 0; font: 400 14px/1.55 var(--font-text); color: var(--ink-2); }
.rd-tdlg__body th { position: sticky; top: 0; z-index: 3; text-align: left; font: 500 11.5px/1.3 var(--font-mono); letter-spacing: 0.03em; text-transform: uppercase; color: var(--amber); padding: 12px 14px; border-bottom: 1px solid var(--line-2); background: var(--bg-raise); vertical-align: bottom; }
.rd-tdlg__body th.sticky-c { z-index: 4; }
.rd-tdlg__body td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; background: var(--bg-deep); }
.rd-tdlg__body td:first-child { color: var(--ink); }
.rd-tdlg__body tr:hover td { background: #1b1b1b; }
.rd-tdlg__body td strong { color: var(--ink); }

/* ---------------------------------------------------------------------
   End matter: cited references, mentions, prev/next
   --------------------------------------------------------------------- */
.rd-end { margin-top: clamp(72px, 9vw, 140px); display: grid; gap: clamp(56px, 7vw, 96px); max-width: 1040px; }
.rd-end__head { margin-bottom: 22px; max-width: 700px; }
.rd-end__head .kicker { margin-bottom: 14px; }
.rd-end__title { font: 400 clamp(28px, 3vw, 44px)/1.02 var(--font-display); letter-spacing: -0.04em; color: var(--ink); margin: 0; text-wrap: balance; }
.rd-end__note { margin-top: 12px; font: 400 13px/1.6 var(--font-mono); color: var(--ink-3); }
.rd-refs { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.rd-ref { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: start; gap: 12px 18px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.rd-ref__main { display: grid; grid-template-columns: 52px minmax(120px, 190px) minmax(0, 1fr); gap: 4px 16px; text-decoration: none; color: var(--ink-2); align-items: baseline; }
.rd-ref__main:hover .rd-ref__t { color: var(--ink); }
.rd-ref__main:hover .rd-ref__who { color: var(--amber); }
.rd-ref__year { font: 400 20px/1 var(--font-display); letter-spacing: -0.04em; color: var(--ink); }
.rd-ref__who { font: 500 12.5px/1.4 var(--font-mono); color: var(--ink); }
.rd-ref__t { font: 400 14.5px/1.45 var(--font-text); }
.rd-ref__acts { display: flex; gap: 6px; padding-top: 2px; }
.rd-ref__btn { font: 500 10.5px/1 var(--font-mono); letter-spacing: 0.04em; color: var(--ink-2); padding: 6px 8px; border: 1px solid var(--line-2); border-radius: 3px; text-decoration: none; white-space: nowrap; }
.rd-ref__btn:hover { color: var(--ink); border-color: var(--orange); }
.rd-ref__btn--pdf { color: #121212; background: var(--amber); border-color: var(--amber); }
.rd-ref__btn--none { color: var(--ink-3); border-style: dashed; }
.rd-ref__btn.ext::after { font-size: 0.9em; }

.rd-mentions { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.rd-mention { display: grid; grid-template-columns: minmax(180px, 260px) minmax(0, 1fr); gap: 10px 24px; padding: 16px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.rd-mention__doc { display: grid; gap: 4px; font: 400 21px/1.1 var(--font-display); letter-spacing: -0.03em; color: var(--ink); text-decoration: none; }
.rd-mention__doc:hover { color: var(--amber); }
.rd-mention__g { font: 500 10.5px/1 var(--font-mono); letter-spacing: 0.05em; color: var(--rd-ink); }
.rd-mention__where { display: flex; flex-wrap: wrap; gap: 6px; }
.rd-mention__where .chip { white-space: normal; text-align: left; }

.rd-pn { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.rd-pn__a { display: grid; gap: 14px; padding: 28px 0; text-decoration: none; min-width: 0; }
.rd-pn__a--next { text-align: right; padding-left: 24px; border-left: 1px solid var(--line); }
.rd-pn__a--prev { padding-right: 24px; }
.rd-pn__k { font: 500 11.5px/1.2 var(--font-mono); letter-spacing: 0.04em; color: var(--rd-ink); }
.rd-pn__t { font: 400 clamp(26px, 3.2vw, 46px)/1 var(--font-display); letter-spacing: -0.045em; color: var(--ink); transition: color 0.2s; }
.rd-pn__a:hover .rd-pn__t { color: var(--amber); }
.rd-end__all { display: flex; gap: 24px; font: 400 13px/1.4 var(--font-mono); margin-top: -40px; }
.rd-end__all a { color: var(--ink-2); text-decoration: none; }
.rd-end__all a:hover { color: var(--amber); }

/* ---------------------------------------------------------------------
   Reader: small screens
   --------------------------------------------------------------------- */
@media (max-width: 900px) {
  .rd-hero__grid { grid-template-columns: minmax(0, 1fr); align-items: start; }
}
@media (max-width: 720px) {
  .rd-ledger { grid-template-columns: minmax(0, 1fr); }
  .rd-ledger > div { display: grid; grid-template-columns: 108px minmax(0, 1fr); gap: 10px; padding: 11px 0; }
  .rd-ledger dt { margin: 0; padding-top: 2px; }
  .rd-ledger dd { font-size: 13px; }
  .rd .prose { font-size: 16.5px; line-height: 1.66; }
  .rd-intro > p { font-size: 17.5px; }
  .rd .prose h2 .rd-hn { margin-bottom: 12px; }
  .rd-ch { padding-top: 52px; }
  .rd-table__bar { gap: 6px 10px; }
  .rd-table__meta { width: 100%; order: 3; }
  .rd-table__tools { margin-left: 0; width: 100%; order: 4; }
  .rd-table__tools .rd-tbtn { margin-left: auto; }
  .rd-article .table-wrap table { font-size: 13px; }
  .rd-article .table-wrap th, .rd-article .table-wrap td { padding: 10px 11px; }
  .rd-ref { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .rd-ref__main { grid-template-columns: 46px minmax(0, 1fr); }
  .rd-ref__t { grid-column: 2; }
  .rd-ref__acts { padding-left: 62px; }
  .rd-mention { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .rd-pn { grid-template-columns: minmax(0, 1fr); }
  .rd-pn__a--next { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }
  .rd-pn__a--prev { padding-right: 0; }
  .rd-end__all { margin-top: -24px; }
  .rd-hits__q { max-width: 28vw; }
}

/* =====================================================================
   Archive /docs/
   ===================================================================== */
.dx-g--program { --gc: var(--amber); --gi: #121212; }
.dx-g--evidence { --gc: var(--orange); --gi: #fff; }
.dx-g--science { --gc: #e2393a; --gi: #fff; }
.dx-g--device { --gc: var(--crimson); --gi: #fff; }
.dx-g--engine { --gc: #9e125a; --gi: #fff; }
.dx-g--lab { --gc: var(--purple); --gi: #fff; }
.dx-g--other { --gc: #4a4a4a; --gi: #fff; }

.dx-hero { padding-block: clamp(36px, 5vw, 72px) clamp(56px, 7vw, 104px); position: relative; }
.dx-hero::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 640px; background: radial-gradient(50% 60% at 85% 10%, rgba(100, 13, 95, 0.38), transparent 72%); pointer-events: none; z-index: -1; }
.dx-hero__t { font: 400 var(--fs-display-1)/0.88 var(--font-display); letter-spacing: var(--track-display); margin: 0; max-width: 15ch; text-wrap: balance; }
.dx-hero__row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 560px); gap: 40px clamp(40px, 6vw, 120px); margin-top: clamp(36px, 5vw, 72px); align-items: end; }
.dx-hero__lead { margin: 0; max-width: 40ch; }
.dx-ledger { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 28px; margin: 0; }
.dx-ledger > div { padding: 14px 0 16px; border-top: 1px solid var(--line); min-width: 0; }
.dx-ledger dt { font: 500 10.5px/1.2 var(--font-mono); letter-spacing: 0.05em; color: var(--purple-ink); margin-bottom: 10px; }
.dx-ledger dd { margin: 0; font: 400 clamp(30px, 3vw, 44px)/0.95 var(--font-display); letter-spacing: -0.045em; color: var(--ink); white-space: nowrap; }
.dx-ledger dd a { color: inherit; text-decoration: none; }
.dx-ledger dd a:hover { color: var(--amber); }
.dx-ledger dd a.ext::after { font-size: 0.4em; vertical-align: 0.9em; }

/* the shelf */
.dx-shelfband { background: var(--bg-deep); padding-block: clamp(48px, 6vw, 88px) clamp(40px, 5vw, 72px); border-block: 1px solid var(--line); }
.dx-shelf__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 32px; margin-bottom: clamp(24px, 3vw, 40px); }
.dx-shelf__label { font: 500 12px/1.2 var(--font-mono); letter-spacing: 0.05em; color: var(--purple-ink); margin: 0; }
.dx-shelf__hint { font: 400 13px/1.5 var(--font-mono); color: var(--ink-3); margin: 0; }
.dx-shelf { display: flex; gap: clamp(10px, 1.4vw, 22px); align-items: stretch; }
.dx-shelf__g { flex: var(--n) 1 0; min-width: 0; display: flex; flex-direction: column; }
.dx-shelf__spines { list-style: none; margin: 0; padding: 0; display: flex; align-items: flex-end; gap: clamp(3px, 0.4vw, 6px); height: clamp(220px, 26vw, 380px); border-bottom: 2px solid var(--line-2); }
.dx-shelf__spines li { flex: 1 1 0; min-width: 0; height: max(var(--h), 18%); display: flex; }
.dx-spine { flex: 1; min-width: 0; position: relative; display: flex; flex-direction: column; justify-content: space-between; align-items: center; padding: 10px 0 12px; background: var(--gc); color: var(--gi); text-decoration: none; border-radius: 3px 3px 0 0; transform-origin: bottom; transition: transform 0.35s var(--ease-out), filter 0.25s, box-shadow 0.25s; }
.dx-shelf__spines li.is-short .dx-spine { justify-content: flex-start; }
.dx-shelf__spines li.is-short .dx-spine__t { position: absolute; bottom: calc(100% + 10px); left: 50%; transform: translateX(-50%) rotate(180deg); max-height: none; color: var(--ink-2); }
.dx-shelf__spines li.is-short .dx-spine:hover .dx-spine__t { color: var(--ink); }
.dx-spine::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(255, 255, 255, 0.14), transparent 22%, transparent 78%, rgba(0, 0, 0, 0.22)); pointer-events: none; }
.dx-spine:hover, .dx-spine:focus-visible { transform: translateY(-8px); filter: brightness(1.1); box-shadow: 0 14px 28px rgba(0, 0, 0, 0.45); }
.dx-spine__w { font: 500 10.5px/1 var(--font-mono); letter-spacing: 0.02em; position: relative; }
.dx-spine__t { writing-mode: vertical-rl; transform: rotate(180deg); font: 400 clamp(12px, 1.05vw, 15px)/1 var(--font-display); letter-spacing: -0.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-height: calc(100% - 26px); position: relative; }
.dx-shelf__gname { margin: 12px 0 0; font: 500 11px/1.2 var(--font-mono); letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-2); display: flex; align-items: center; gap: 8px; }
.dx-shelf__gname::before { content: ""; width: 10px; height: 10px; background: var(--gc); border-radius: 2px; flex: none; }
.dx-shelf__legend { display: none; flex-wrap: wrap; gap: 8px 16px; list-style: none; margin: 16px 0 0; padding: 0; }
.dx-shelf__legend li { display: inline-flex; align-items: center; gap: 7px; font: 500 11px/1 var(--font-mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-2); }
.dx-shelf__legend li::before { content: ""; width: 10px; height: 10px; border-radius: 2px; background: var(--gc); }
.dx-shelf__legend span { color: var(--ink-3); }
.js .dx-shelf__spines li { transform: scaleY(0.02); transform-origin: bottom; transition: transform 1s var(--ease-out); }
.js .dx-shelf.is-in .dx-shelf__spines li { transform: none; }
.dx-shelf__g:nth-child(2) li { transition-delay: .06s; } .dx-shelf__g:nth-child(3) li { transition-delay: .12s; } .dx-shelf__g:nth-child(4) li { transition-delay: .18s; } .dx-shelf__g:nth-child(5) li { transition-delay: .24s; } .dx-shelf__g:nth-child(6) li { transition-delay: .3s; }
@media (prefers-reduced-motion: reduce) { .js .dx-shelf__spines li { transform: none !important; transition: none !important; } }

/* groups */
.dx-group { padding-block: clamp(64px, 8vw, 128px) 0; }
.dx-group__in { display: grid; grid-template-columns: minmax(220px, 320px) minmax(0, 1fr); gap: 32px clamp(40px, 5vw, 96px); align-items: start; }
.dx-group__head { position: sticky; top: calc(var(--header-h) + 36px); }
.dx-group__head::before { content: ""; display: block; width: 56px; height: 6px; background: var(--gc); margin-bottom: 22px; }
.dx-group__k { font: 500 11px/1 var(--font-mono); letter-spacing: 0.05em; color: var(--ink-3); margin: 0 0 14px; }
.dx-group__t { font: 400 clamp(44px, 5.6vw, 88px)/0.9 var(--font-display); letter-spacing: var(--track-display); margin: 0; }
.dx-group__m { font: 400 12.5px/1.4 var(--font-mono); color: var(--purple-ink); margin: 16px 0 0; }
.dx-group__lede { font: 400 15px/1.55 var(--font-text); color: var(--ink-2); margin: 14px 0 0; max-width: 34ch; }
.dx-group__up { display: inline-block; margin-top: 18px; font: 500 12px/1.3 var(--font-mono); color: var(--ink-2); text-decoration: none; }
.dx-group__up:hover { color: var(--amber); }

.dx-docs { list-style: none; margin: 0; padding: 0; border-bottom: 1px solid var(--line); }
.dx-doc { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px clamp(24px, 3vw, 48px); padding: 30px 0 32px; border-top: 1px solid var(--line); transition: background 0.25s; }
.dx-doc.is-lit { background: linear-gradient(90deg, rgba(255, 255, 255, 0.035), transparent 80%); }
.dx-doc__main { min-width: 0; }
.dx-doc__kick { font: 500 11px/1.2 var(--font-mono); letter-spacing: 0.04em; color: var(--purple-ink); text-transform: uppercase; margin: 0 0 10px; }
.dx-doc__t { font: 400 clamp(28px, 3vw, 44px)/1 var(--font-display); letter-spacing: -0.045em; margin: 0; text-wrap: balance; }
.dx-doc__t a { color: var(--ink); text-decoration: none; transition: color 0.2s; }
.dx-doc__t a:hover { color: var(--amber); }
.dx-doc__full { font: 400 15px/1.4 var(--font-text); color: var(--ink-3); margin: 10px 0 0; max-width: 60ch; }
.dx-doc__blurb { font: 400 16px/1.55 var(--font-text); color: var(--ink-2); margin: 12px 0 0; max-width: 62ch; }
.dx-doc__q { font: 500 10.5px/1 var(--font-mono); letter-spacing: 0.05em; color: var(--ink-3); margin-right: 4px; }
.dx-doc__stats { display: grid; grid-template-columns: repeat(4, auto); gap: 0 22px; margin: 4px 0 0; align-self: start; }
.dx-doc__stats > div { text-align: right; }
.dx-doc__stats dt { font: 500 10px/1 var(--font-mono); letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 8px; }
.dx-doc__stats dd { margin: 0; font: 400 22px/1 var(--font-display); letter-spacing: -0.04em; color: var(--ink); font-variant-numeric: tabular-nums; }
.dx-doc__acts { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px; }
.dx-btn { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 14px; font: 500 12.5px/1 var(--font-mono); color: var(--ink); text-decoration: none; border: 1px solid var(--line-2); border-radius: 3px; transition: border-color 0.2s, background 0.2s, color 0.2s; }
.dx-btn:hover { border-color: var(--ink); }
.dx-btn--solid { background: var(--ink); border-color: var(--ink); color: #121212; }
.dx-btn--solid:hover { background: var(--amber); border-color: var(--amber); }
.dx-btn--ghost { border-color: transparent; color: var(--ink-3); padding-inline: 6px; }
.dx-btn--ghost:hover { color: var(--ink); border-color: transparent; }
.dx-btn--ghost code { font-size: 12px; }
.dx-doc__toc { grid-column: 1 / -1; }
.dx-doc__toc summary { cursor: pointer; list-style: none; display: inline-flex; gap: 8px; font: 400 12.5px/1.3 var(--font-mono); color: var(--ink-3); padding: 6px 0; }
.dx-doc__toc summary::-webkit-details-marker { display: none; }
.dx-doc__toc summary:hover { color: var(--ink); }
.dx-doc__toc-k { color: var(--purple-ink); }
.dx-doc__toc[open] .dx-doc__toc-k { font-size: 0; }
.dx-doc__toc[open] .dx-doc__toc-k::before { content: "[−]"; font-size: 12.5px; }
.dx-doc__toc ol { columns: 2 280px; column-gap: 40px; margin: 12px 0 4px; padding-left: 1.6em; font: 400 14px/1.45 var(--font-text); color: var(--ink-3); }
.dx-doc__toc li { break-inside: avoid; padding: 3px 0; }
.dx-doc__toc li::marker { font: 400 11px var(--font-mono); color: var(--ink-3); }
.dx-doc__toc a { color: var(--ink-2); text-decoration: none; }
.dx-doc__toc a:hover { color: var(--amber); }
.dx-doc__bar { position: absolute; left: 0; top: -1px; height: 3px; width: var(--w); background: var(--gc); }

.dx-how { padding-block: clamp(80px, 10vw, 160px) clamp(64px, 8vw, 120px); }
.dx-how__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(32px, 5vw, 80px); max-width: 1100px; }
.dx-how__list li { padding: 20px 0; border-top: 1px solid var(--line); font: 400 16px/1.55 var(--font-text); color: var(--ink-2); }
.dx-how__list b { display: block; font: 400 22px/1.15 var(--font-display); letter-spacing: -0.03em; color: var(--ink); margin-bottom: 6px; }
.dx-how__list a { color: var(--ink); }
.dx-how__list kbd { padding: 1px 6px; border: 1px solid var(--line-2); border-radius: 3px; font-size: 13px; }

@media (max-width: 1080px) {
  .dx-hero__row { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .dx-group__in { grid-template-columns: minmax(0, 1fr); }
  .dx-group__head { position: static; }
}
@media (max-width: 720px) {
  .dx-ledger { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 16px; }
  .dx-ledger dd { font-size: 26px; }
  .dx-shelf { gap: 6px; }
  .dx-shelf__spines { height: 168px; gap: 2px; }
  .dx-spine { padding: 0; border-radius: 2px 2px 0 0; }
  .dx-spine__w, .dx-spine__t { display: none; }
  .dx-shelf__gname { display: none; }
  .dx-shelf__legend { display: flex; }
  .dx-doc { grid-template-columns: minmax(0, 1fr); gap: 14px; padding-block: 24px; }
  .dx-doc__stats { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 12px; }
  .dx-doc__stats > div { text-align: left; }
  .dx-doc__stats dd { font-size: 19px; }
  .dx-how__list { grid-template-columns: minmax(0, 1fr); }
}

/* ---------------------------------------------------------------------
   Print: a clean paper copy of the full document
   --------------------------------------------------------------------- */
@media print {
  .site-header, .site-footer, .rd-rail, .rd-mbar, .rd-scrim, .rd-strip, .rd-map, .rd-hero__up, .rd-end, .rd-hits, .rd-toast, .rd-anchor, .rd-table__bar, .rd-table__float, .rd-table__fade, .rd-secmark, .crumbs, .skip-link { display: none !important; }
  html, body { background: #fff !important; color: #111 !important; }
  .rd-hero::before, .dx-hero::before { display: none; }
  .rd-layout { display: block; padding: 0; }
  .rd .prose, .rd-intro > p, .rd .prose li, .rd .prose td { color: #222 !important; }
  .rd .prose h2, .rd .prose h3, .rd .prose h4, .rd-title__main, .rd .prose strong { color: #000 !important; }
  .rd-title__pre, .rd-ledger dd, .rd-ledger dt, .rd .prose .rd-hn { color: #555 !important; }
  .rd .prose a, .rd .prose code { color: #111 !important; text-decoration: underline; }
  .rd-ch { break-before: auto; padding-top: 24px; margin-top: 24px; }
  .rd .prose h2, .rd .prose h3 { break-after: avoid; }
  .table-wrap { overflow: visible !important; border-color: #bbb !important; background: #fff !important; }
  .table-wrap table { width: 100% !important; table-layout: auto !important; font-size: 10px !important; }
  .table-wrap th { background: #eee !important; color: #000 !important; }
  .table-wrap td { color: #222 !important; border-color: #ddd !important; background: #fff !important; position: static !important; }
  .table-wrap tr { break-inside: avoid; }
  .term { border-bottom: 0 !important; }
  mark.rd-hit { background: none !important; box-shadow: none !important; color: inherit !important; }
}
@media (max-width: 720px) { .rd .prose pre { white-space: pre-wrap; overflow-wrap: anywhere; padding: 14px 16px; font-size: 13px; } }

/* lead fix: documents with many short chapters (REFERENCES has 27) must still fit a phone-width map */
@media (max-width: 720px) {
  .rd-map__bar li { min-width: 6px; }
  .rd-map__bar a { padding-inline: 2px; }
}

/* round 4: pinned last column ("reported outputs") while scrolling a record table sideways */
.rd-table.has-pin .table-wrap .sticky-r, .rd-tdlg .sticky-r { position: sticky; right: 0; z-index: 2; background: var(--bg-deep); box-shadow: -1px 0 0 var(--line-2), -12px 0 18px -10px rgba(0, 0, 0, 0.8); }
.rd-table.has-pin .table-wrap th.sticky-r, .rd-tdlg th.sticky-r { background: var(--bg-raise); z-index: 3; }
.rd-table.has-pin .table-wrap tr:hover td.sticky-r { background: #1b1b1b; }
.rd-table.has-pin .table-wrap td.sticky-r { color: var(--ink); }
.rd-table__float th.sticky-r { position: sticky; right: 0; z-index: 2; box-shadow: -1px 0 0 var(--line-2); }
.rd-table.has-pin .rd-table__fade { display: none; }
.rd-ref__none { font: 400 11px/1 var(--font-mono); color: var(--ink-3); padding: 7px 2px; white-space: nowrap; }