/* === pattern-tokens:font-import:start (generated) === */
/*
   The After Dark faces. A stack NAMES a family; it never
   fetches one - so without this the headings below render in
   the metric-matched fallback and look deliberate.

   A <link rel="stylesheet"> in the document head is faster:
   the browser finds it while parsing the head, where this is
   not discovered until global.css has itself arrived and been
   parsed - an extra round trip on the critical path. Write the
   <link> as well; this is the backstop that makes a forgotten
   one slow rather than wrong.

   Quoted, not a bare url() token: these URLs carry a semicolon
   inside the weight axis, and only a string ends where the URL
   ends.

   At the top of the file because @import is valid only before
   any other rule. Regenerated in place; edits here are lost. */
@import url("https://fonts.googleapis.com/css2?family=Archivo:ital,wght@0,400..700;1,400..700&family=Big+Shoulders:opsz,wght@10..72,400..700&display=swap");
/* === pattern-tokens:font-import:end === */

/* WhosDogging -- site stylesheet. Seeded by page_brief.py --seed; the palette
   below was derived from the logo's inks and is a starting point to correct,
   never a decision already made. Everything else on this site builds on it. */

/* ---- reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; }
img, picture, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul[class], ol[class] { list-style: none; margin: 0; padding: 0; }

/* ---- tokens ---- */
:root {
  --color-bg: #f7f5f4;
  --color-surface: #ffffff;
  --color-surface-soft: #efebea;
  --color-text: #1d1a1b;
  --color-text-soft: #5e5658;
  --color-heading: #141112;
  --color-primary: #d00000;
  --color-primary-dark: #a30000;
  --color-scrim: #1a1215;
  --color-rule: #e2dcda;
  --color-focus: #1d8787;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5rem;
  --space-11: 6.5rem;
  --space-12: 8rem;
  --container-max: 75rem;

  /* The dials are the brand's character: decide them, do not keep them. */
  --btn-radius: 3px;
  --card-radius: 4px;
  --card-shadow: none;
  --card-border: 1px solid var(--color-rule);
  --chip-radius: 3px;
  --logo-height: 56px;

  --transition-fast: 120ms ease;
  --transition-slow: 320ms ease;

  --type-scale: 1.15;
}

/* ---- base type ---- */
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: var(--weight-display, 700);
  color: var(--color-heading);
  line-height: calc(1.15 * var(--heading-leading, 1));
  letter-spacing: calc(-0.02em + var(--heading-tracking, 0) * 1em);
}

a { color: var(--color-primary); }

:where(a, button, summary, input, select, textarea):focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---- motion ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* === pattern-tokens:start (generated - edit outside these markers) === */
/*
   Role tokens the design patterns require. A var() this
   sheet does not define is discarded at compute time, so
   the rule is lost rather than falling back to anything.
   Regenerated in place; anything you add here is replaced.
*/
/* Metric-matched fallback for Big Shoulders, on the heading. Arial,
   resized to match Big Shoulders, so the line boxes are already the size
   they will be once the webfont arrives and the page does not reflow
   under the reader when it does.

   One face PER WEIGHT. A real face gets wider at 700; a local one
   thickened synthetically does not, so a single face solved at 400
   leaves anything set at 700 too narrow and this block causes the
   shift it exists to stop. The descriptor is what picks the right
   solved number instead of synthesising a bold from the 400 face.

   The local() chain is ordered. The numbers are solved against Arial
   specifically, so a stand-in is a degradation rather than a match -
   but Linux and Android have no Arial, and there a face with nothing
   to load defines no family at all and the stack falls through in
   silence, which measured 34.7% off.

   BESIDE the :root rule, never inside it: an at-rule in a declaration
   block is dropped by the parser, and the stack would have survived
   naming a family nothing defines. */
@font-face {
  font-family: 'BigShouldersFallback';
  src: local('Arial'), local('Liberation Sans'), local('Helvetica Neue'),
       local('Helvetica'), local('Roboto');
  font-weight: 400;
  size-adjust: 69.2%;
  ascent-override: 98.6%;
  descent-override: 21.4%;
  line-gap-override: 0%;
}
@font-face {
  font-family: 'BigShouldersFallback';
  src: local('Arial'), local('Liberation Sans'), local('Helvetica Neue'),
       local('Helvetica'), local('Roboto');
  font-weight: 700;
  size-adjust: 83.1%;
  ascent-override: 98.6%;
  descent-override: 21.4%;
  line-gap-override: 0%;
}

/* Metric-matched fallback for Archivo, on the body. Arial,
   resized to match Archivo, so the line boxes are already the size
   they will be once the webfont arrives and the page does not reflow
   under the reader when it does.

   One face PER WEIGHT. A real face gets wider at 700; a local one
   thickened synthetically does not, so a single face solved at 400
   leaves anything set at 700 too narrow and this block causes the
   shift it exists to stop. The descriptor is what picks the right
   solved number instead of synthesising a bold from the 400 face.

   The local() chain is ordered. The numbers are solved against Arial
   specifically, so a stand-in is a degradation rather than a match -
   but Linux and Android have no Arial, and there a face with nothing
   to load defines no family at all and the stack falls through in
   silence, which measured 34.7% off.

   BESIDE the :root rule, never inside it: an at-rule in a declaration
   block is dropped by the parser, and the stack would have survived
   naming a family nothing defines. */
@font-face {
  font-family: 'ArchivoFallback';
  src: local('Arial'), local('Liberation Sans'), local('Helvetica Neue'),
       local('Helvetica'), local('Roboto');
  font-weight: 400;
  size-adjust: 98.3%;
  ascent-override: 87.8%;
  descent-override: 21%;
  line-gap-override: 0%;
}
@font-face {
  font-family: 'ArchivoFallback';
  src: local('Arial'), local('Liberation Sans'), local('Helvetica Neue'),
       local('Helvetica'), local('Roboto');
  font-weight: 700;
  size-adjust: 105.7%;
  ascent-override: 87.8%;
  descent-override: 21%;
  line-gap-override: 0%;
}

:root {
  /* Inks. The ratios are measured, not intended. */
  /* on this brand's own --color-scrim: 18.40:1 */
  --color-on-scrim: #ffffff;
  /* white 5.70:1, the brand's own text 3.03:1 on --color-primary */
  --color-on-primary: #ffffff;

  /* Type: the After Dark pairing. Chosen, not derived. */
  --font-heading: 'Big Shoulders', 'BigShouldersFallback', 'Arial Narrow', 'Helvetica Neue Condensed', sans-serif;
  --font-body: 'Archivo', 'ArchivoFallback', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --heading-leading: 0.95;
  --heading-tracking: 0.01;
}
/* === pattern-tokens:end === */

/* === pattern masthead-nav@10 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* masthead-nav - tokens only, selectors prefixed. The menu inside
   .masthead-nav-links is styled by structure - ul, li, a - so the list the
   platform generates for {{menu.navigation}} and a list written by hand take
   the same rules. */

/* Each ground names its own inks, and every rule below reads the pair rather
   than a token, so nothing here knows which ground it is on. */
.masthead-nav--plain {
  --masthead-nav-ground: var(--color-bg);
  --masthead-nav-ink: var(--color-text);
  --masthead-nav-edge: var(--color-rule);
  --masthead-nav-cta-face: var(--color-primary);
  --masthead-nav-cta-ink: var(--color-on-primary);
  --masthead-nav-panel-face: var(--color-surface);
  --masthead-nav-panel-ink: var(--color-text);
  --masthead-nav-ring: var(--color-focus);
}
.masthead-nav--soft {
  --masthead-nav-ground: var(--color-surface-soft);
  --masthead-nav-ink: var(--color-text);
  --masthead-nav-edge: var(--color-rule);
  --masthead-nav-cta-face: var(--color-primary);
  --masthead-nav-cta-ink: var(--color-on-primary);
  --masthead-nav-panel-face: var(--color-surface);
  --masthead-nav-panel-ink: var(--color-text);
  --masthead-nav-ring: var(--color-focus);
}
.masthead-nav--brand {
  --masthead-nav-ground: var(--color-primary);
  --masthead-nav-ink: var(--color-on-primary);
  --masthead-nav-edge: color-mix(in srgb, var(--color-on-primary) 35%, transparent);
  --masthead-nav-cta-face: var(--color-on-primary);
  --masthead-nav-cta-ink: var(--color-primary);
  --masthead-nav-panel-face: var(--color-primary);
  --masthead-nav-panel-ink: var(--color-on-primary);
  --masthead-nav-ring: var(--color-on-primary);
}

/* ---- the bar ---- */
/* One number for every tap target here, and for the room the drawer keeps.
   Clipped sideways, never scrolled: a faded submenu is laid out where it
   will open, and one past the edge would otherwise widen the page. */
.masthead-nav {
  --masthead-nav-tap: 2.75rem;
  background: var(--masthead-nav-ground);
  color: var(--masthead-nav-ink);
  border-block-end: 1px solid var(--masthead-nav-edge);
  overflow-x: clip;
}
/* edge: every rung keeps the 1px border and changes only what paints it, so
   the bar is the same height on all three and --page-header-height holds. */
.masthead-nav--rule {
  border-block-end-color: var(--masthead-nav-edge);
}
.masthead-nav--shadow {
  border-block-end-color: transparent;
  box-shadow: var(--card-shadow);
}
.masthead-nav--flush {
  border-block-end-color: transparent;
}
.masthead-nav--static {
  position: static;
}
/* The z-index orders the drawer's scrim, panel and button against each other
   rather than against the page. `sticky` is no containing block for a fixed
   child, so the drawer still pins to the viewport. */
.masthead-nav--pinned,
.masthead-nav--compact {
  position: sticky;
  inset-block-start: 0;
  z-index: 40;
}
/* The containing block for the small-screen menu and for the controls when
   they are parked in the corner on --centred. */
.masthead-nav-inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
}
.masthead-nav-mark {
  display: flex;
  align-items: center;
  flex: 0 1 auto;
  min-width: 0;
  margin-inline-end: auto;
}
/* The set height is the floor: `height: auto` under a `max-height` alone
   resolves a viewBox-only SVG to 0x0. object-fit stops the cap distorting it. */
.masthead-nav-logo {
  display: block;
  width: auto;
  height: var(--logo-height, 2.75rem);
  max-width: 100%;
  object-fit: contain;
}
/* mark: how the brand mark meets the ground behind it. */
.masthead-nav--direct .masthead-nav-mark {
  padding: 0;
}
.masthead-nav--plate .masthead-nav-mark {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--card-radius);
  background: var(--color-bg);
}
.masthead-nav--mono .masthead-nav-logo {
  filter: brightness(0) invert(1);
}

/* ---- the small-screen disclosure ---- */
.masthead-nav-disclosure {
  flex: 0 0 auto;
}
.masthead-nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--masthead-nav-tap);
  padding-inline: var(--space-3);
  border: 1px solid var(--masthead-nav-edge);
  border-radius: var(--btn-radius);
  color: var(--masthead-nav-ink);
  font-family: var(--font-heading);
  font-size: calc(0.9375rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  cursor: pointer;
  /* Both lines are needed to drop the default triangle. */
  list-style: none;
}
.masthead-nav-toggle::-webkit-details-marker {
  display: none;
}
/* Three bars: the element is the middle one, the pseudo-elements the others.
   The fold into a cross is a state change, so reduced motion keeps it. */
.masthead-nav-toggle-icon {
  position: relative;
  flex: 0 0 auto;
  width: 1rem;
  height: 2px;
  background: currentColor;
}
.masthead-nav-toggle-icon::before,
.masthead-nav-toggle-icon::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  height: 2px;
  background: currentColor;
}
.masthead-nav-toggle-icon::before {
  top: -5px;
}
.masthead-nav-toggle-icon::after {
  top: 5px;
}
.masthead-nav-disclosure[open] .masthead-nav-toggle-icon {
  background: transparent;
}
.masthead-nav-disclosure[open] .masthead-nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}
.masthead-nav-disclosure[open] .masthead-nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}
/* toggle=icon: the word leaves the box, never the accessibility tree - never
   display: none. With no word in it the box needs a square floor. */
.masthead-nav--icon .masthead-nav-toggle {
  justify-content: center;
  min-width: var(--masthead-nav-tap);
}
.masthead-nav--icon .masthead-nav-toggle-text {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---- the menu: whatever list sits inside the nav landmark ---- */
.masthead-nav-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}
.masthead-nav-links li {
  margin: 0;
}
.masthead-nav-links a,
.masthead-nav-links button {
  display: flex;
  align-items: center;
  min-height: var(--masthead-nav-tap);
  margin: 0;
  padding: var(--space-2) 0;
  border: 0;
  background: none;
  color: inherit;
  font-family: var(--font-heading);
  font-size: calc(1rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  text-align: start;
  text-decoration: none;
  cursor: pointer;
}
.masthead-nav-links a[href]:hover,
.masthead-nav-links button:hover {
  text-decoration: underline;
  text-underline-offset: 0.3em;
}
/* A parent with children and no URL of its own arrives as an <a> with no
   href. It is a label, not a link, so it must not offer a pointer. */
.masthead-nav-links li:has(> ul) > a:not([href]) {
  cursor: default;
}
.masthead-nav-links ul ul {
  padding-inline-start: var(--space-4);
  border-inline-start: 1px solid var(--masthead-nav-edge);
}
.masthead-nav-links ul ul a,
.masthead-nav-links ul ul button {
  font-size: calc(0.9375rem * var(--type-scale, 1));
  font-weight: 500;
}

/* ---- the tray: the menu and the controls, both inside the disclosure ---- */
/* No `display` here: one would force the tray open on --panel, which opens
   and shuts natively. Each rung turns it on where it wants it laid out. */
.masthead-nav-tray {
  flex-direction: column;
  gap: var(--space-4);
}

/* ---- login and join ---- */
.masthead-nav-controls {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.masthead-nav-login {
  display: flex;
  align-items: center;
  color: inherit;
  font-family: var(--font-heading);
  font-size: calc(0.9375rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  text-decoration: none;
  padding-block: var(--space-2);
}
.masthead-nav-login:hover {
  text-decoration: underline;
  text-underline-offset: 0.3em;
}
.masthead-nav-join {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 auto;
  min-height: var(--masthead-nav-tap);
  padding-inline: var(--space-5);
  border-radius: var(--btn-radius);
  background: var(--masthead-nav-cta-face);
  color: var(--masthead-nav-cta-ink);
  font-family: var(--font-heading);
  font-size: calc(0.9375rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  text-decoration: none;
}
.masthead-nav-join:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
/* The ring is the ground's own, so one rule is right on all three. */
.masthead-nav a:focus-visible,
.masthead-nav button:focus-visible,
.masthead-nav summary:focus-visible {
  outline: 3px solid var(--masthead-nav-ring);
  outline-offset: 2px;
}

/* ---- small screens ---- */
@media (width < 60rem) {
  /* A wide wordmark at --logo-height is most of a phone across. Without this
     cap it takes the whole row and pushes the menu button onto a second one. */
  .masthead-nav-mark {
    max-width: 45%;
    min-width: var(--masthead-nav-tap);
    min-height: var(--masthead-nav-tap);
  }
  /* A button with no word in it is one tap target wide, so the mark may
     take the rest of the row. --row has no button and keeps the 45%. */
  .masthead-nav--drawer.masthead-nav--icon .masthead-nav-mark,
  .masthead-nav--panel.masthead-nav--icon .masthead-nav-mark {
    max-width: calc(100% - var(--masthead-nav-tap) - var(--space-3));
  }
  /* A long label ellipsises; border-box holds the padding inside the cap. */
  .masthead-nav-toggle {
    box-sizing: border-box;
    max-width: 100%;
  }
  .masthead-nav--labelled .masthead-nav-toggle-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  /* One button, two words, and only ever one of them in the box. */
  .masthead-nav-toggle-text--close {
    display: none;
  }
  .masthead-nav-disclosure[open] .masthead-nav-toggle-text {
    display: none;
  }
  .masthead-nav-disclosure[open] .masthead-nav-toggle-text--close {
    display: inline;
  }
  /* The controls lead the sheet, and follow the menu in the markup so the
     bar is read in the order it is drawn. --row has no sheet and is left. */
  .masthead-nav--drawer .masthead-nav-controls,
  .masthead-nav--panel .masthead-nav-controls {
    order: -1;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }
  /* A row in a menu here, not a word in the bar: it takes a menu target. */
  .masthead-nav-login {
    min-height: var(--masthead-nav-tap);
  }
  /* menu-side moves the button, and the drawer it opens, to the same edge.
     Scoped to the rungs that HAVE a button: on --row the disclosure is the
     whole menu, so ordering it puts the navigation above the brand. */
  .masthead-nav--drawer.masthead-nav--side-end .masthead-nav-disclosure,
  .masthead-nav--panel.masthead-nav--side-end .masthead-nav-disclosure {
    order: 0;
  }
  .masthead-nav--drawer.masthead-nav--side-start .masthead-nav-disclosure,
  .masthead-nav--panel.masthead-nav--side-start .masthead-nav-disclosure {
    order: -1;
  }
  /* No start margin: 45% and 55% add up exactly, so anything added breaks
     the line and drops the mark to a second row. */
  .masthead-nav--side-start .masthead-nav-mark {
    margin-inline-end: auto;
  }
  /* A join control stretched over a tablet is a bar, not a button. */
  /* Definite, not max-width: an auto margin here cancels the stretch. */
  .masthead-nav--panel .masthead-nav-controls {
    width: min(20rem, 100%);
  }
  .masthead-nav--panel.masthead-nav--menu-end .masthead-nav-controls {
    align-self: flex-end;
  }
}

/* menu=drawer: a panel fixed to the inline-end edge, over a dimmed page. */
@media (width < 60rem) {
  /* The drawer is fixed to the viewport and the button that shuts it is not,
     so a scroll parts them and leaves an open menu with no way out. Pinned on
     both sticky rungs: this is not the sticky axis and does not fold into it. */
  .masthead-nav--drawer:has(.masthead-nav-disclosure[open]) {
    position: sticky;
    inset-block-start: 0;
    z-index: 40;
  }
  /* 45% for the mark and the rest for the button, gap included, so the two
     share one row: flexbox breaks lines before it shrinks anything. */
  .masthead-nav--drawer .masthead-nav-disclosure {
    max-width: calc(55% - var(--space-3));
  }
  /* Laid out open or shut, so it has somewhere to slide FROM. Engines hide a
     closed <details> two ways, one unreachable from the child, so both are
     needed. `visibility` keeps it out of the tab order - never use opacity. */
  .masthead-nav--drawer .masthead-nav-tray {
    display: flex;
  }
  .masthead-nav--drawer .masthead-nav-disclosure::details-content {
    content-visibility: visible;
    block-size: auto;
  }
  .masthead-nav--drawer .masthead-nav-tray {
    position: fixed;
    inset-block: 0;
    z-index: 41;
    width: min(20rem, 82vw);
    overflow-y: auto;
    overscroll-behavior: contain;
    /* Block-start padding is the header's first row, computed - the button
       sits on the drawer, so anything less puts it over the first item. */
    padding: calc(var(--space-3)
                  + max(var(--masthead-nav-tap), var(--logo-height, 2.75rem))
                  + var(--space-4))
             var(--space-4) var(--space-6);
    background: var(--masthead-nav-panel-face);
    color: var(--masthead-nav-panel-ink);
    box-shadow: var(--card-shadow);
    visibility: hidden;
  }
  /* `translate` is the one place a logical property cannot carry the meaning,
     so each side states its own, and its own :dir(rtl). */
  .masthead-nav--drawer.masthead-nav--side-end .masthead-nav-tray {
    inset-inline-end: 0;
    border-inline-start: 1px solid var(--masthead-nav-edge);
    translate: 100% 0;
  }
  .masthead-nav--drawer.masthead-nav--side-end .masthead-nav-tray:dir(rtl) {
    translate: -100% 0;
  }
  .masthead-nav--drawer.masthead-nav--side-start .masthead-nav-tray {
    inset-inline-start: 0;
    border-inline-end: 1px solid var(--masthead-nav-edge);
    translate: -100% 0;
  }
  .masthead-nav--drawer.masthead-nav--side-start .masthead-nav-tray:dir(rtl) {
    translate: 100% 0;
  }
  .masthead-nav--drawer .masthead-nav-disclosure[open] .masthead-nav-tray {
    visibility: visible;
    translate: none;
  }
  /* The backdrop belongs to the disclosure: in the panel it would be inside
     the box it has to sit behind. */
  .masthead-nav--drawer .masthead-nav-disclosure::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 40;
    background: color-mix(in srgb, var(--color-scrim) 62%, transparent);
    visibility: hidden;
    opacity: 0;
  }
  .masthead-nav--drawer .masthead-nav-disclosure[open]::before {
    visibility: visible;
    opacity: 1;
  }
  /* The button stays where it was pressed, above both the backdrop and the
     panel. The panel's block-start padding keeps the first item out of it. */
  .masthead-nav--drawer .masthead-nav-disclosure[open] .masthead-nav-toggle {
    position: relative;
    z-index: 42;
  }
}

/* menu=panel: the menu drops out of the button, over what is below. */
@media (width < 60rem) {
  /* A shut <details> contains its own layout, so this sheet is laid out
     against the button until it opens - `visibility` keeps that box out. */
  .masthead-nav--panel .masthead-nav-tray {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    z-index: 20;
    max-height: 70svh;
    overflow-y: auto;
    padding: var(--space-4);
    background: var(--masthead-nav-ground);
    border-block-end: 1px solid var(--masthead-nav-edge);
    box-shadow: var(--card-shadow);
    visibility: hidden;
  }
  /* Scoped to [open], unlike the drawer's: this sheet does not slide, and a
     `display` that applied while shut would hold it open. */
  .masthead-nav--panel .masthead-nav-disclosure[open] .masthead-nav-tray {
    display: flex;
    visibility: visible;
  }
}

/* ---- menu=row: no button, the menu is a scrolling row beside the mark ---- */
@media (width < 60rem) {
  .masthead-nav--row .masthead-nav-toggle {
    display: none;
  }
  /* Both declarations open the panel: engines hide a closed <details> in two
     different ways, and one of them cannot be reached from the child. */
  .masthead-nav--row .masthead-nav-tray {
    display: flex;
  }
  .masthead-nav--row .masthead-nav-disclosure::details-content {
    content-visibility: visible;
    block-size: auto;
  }
  .masthead-nav--row .masthead-nav-mark {
    margin-inline-end: 0;
  }
  .masthead-nav--row .masthead-nav-disclosure {
    flex: 1 1 auto;
    min-width: 0;
  }
  .masthead-nav--row .masthead-nav-tray {
    gap: var(--space-2);
  }
  .masthead-nav--row .masthead-nav-links {
    min-width: 0;
  }
  .masthead-nav--row .masthead-nav-join {
    flex: 0 1 auto;
  }
  .masthead-nav--row .masthead-nav-links > ul {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: var(--space-4);
    overflow-x: auto;
  }
  .masthead-nav--row .masthead-nav-links > ul > li {
    flex: 0 0 auto;
  }
  /* One row, so a submenu cannot nest under its parent; its children run on
     beside it instead. */
  .masthead-nav--row .masthead-nav-links li:has(> ul) {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }
  .masthead-nav--row .masthead-nav-links ul ul {
    flex-direction: row;
    gap: var(--space-4);
    padding-inline-start: var(--space-4);
  }
}

/* ---- wide screens: the menu is always open and sits in the bar ---- */
@media (min-width: 60rem) {
  .masthead-nav-toggle {
    display: none;
  }
  /* Both declarations open the panel: engines hide a closed <details> in two
     different ways, and one of them cannot be reached from the child. */
  .masthead-nav-tray {
    display: flex;
  }
  .masthead-nav-disclosure::details-content {
    content-visibility: visible;
    block-size: auto;
  }
  .masthead-nav-tray {
    flex-direction: row;
    align-items: center;
    gap: var(--space-6);
  }
  .masthead-nav-links {
    flex: 1 1 auto;
    min-width: 0;
  }
  .masthead-nav-inner {
    flex-wrap: nowrap;
    gap: var(--space-6);
    padding-block: var(--space-4);
  }
  /* The mark must not shrink here: the logo is sized from its height at this
     width, so a shrinking box would let the image spill over the first menu
     item instead of taking room from it. */
  .masthead-nav-mark {
    flex: 0 0 auto;
  }
  .masthead-nav-logo {
    max-width: none;
  }
  .masthead-nav-disclosure {
    flex: 1 1 auto;
    min-width: 0;
  }
  .masthead-nav-controls {
    flex: 0 0 auto;
  }
  .masthead-nav-join {
    flex: 0 0 auto;
  }
  .masthead-nav-links > ul {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2) var(--space-5);
  }
  .masthead-nav-links > ul > li {
    position: relative;
  }
  .masthead-nav-links > ul > li > a,
  .masthead-nav-links > ul > li > button {
    min-height: 0;
    white-space: nowrap;
  }
  /* Faded rather than removed: a submenu taken out of the layout cannot be
     focused, so a keyboard could never open it. */
  .masthead-nav-links ul ul {
    position: absolute;
    top: 100%;
    inset-inline-start: 0;
    z-index: 30;
    min-width: 12rem;
    padding: var(--space-2);
    border: var(--card-border);
    border-inline-start: var(--card-border);
    border-radius: var(--card-radius);
    background: var(--masthead-nav-panel-face);
    color: var(--masthead-nav-panel-ink);
    box-shadow: var(--card-shadow);
    opacity: 0;
    pointer-events: none;
  }
  .masthead-nav-links > ul > li:hover > ul,
  .masthead-nav-links > ul > li:focus-within > ul {
    opacity: 1;
    pointer-events: auto;
  }
  /* The last two items sit nearest the edge, so their panels hang from
     their end edge instead. */
  .masthead-nav-links > ul > li:nth-last-child(-n + 2) > ul {
    inset-inline-start: auto;
    inset-inline-end: 0;
  }
  .masthead-nav-links ul ul a,
  .masthead-nav-links ul ul button {
    min-height: var(--masthead-nav-tap);
    padding-inline: var(--space-2);
  }
  /* A third level sits inside its parent's panel rather than beside it. */
  .masthead-nav-links ul ul ul {
    position: static;
    min-width: 0;
    padding: 0 0 0 var(--space-3);
    border: 0;
    border-inline-start: 1px solid var(--masthead-nav-edge);
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
  }
  /* A chevron marks the items that carry children. */
  .masthead-nav-links > ul > li:has(> ul) > a::after,
  .masthead-nav-links > ul > li:has(> ul) > button::after {
    content: "";
    display: inline-block;
    width: 0.4em;
    height: 0.4em;
    margin-inline-start: var(--space-2);
    border-inline-end: 2px solid currentColor;
    border-block-end: 2px solid currentColor;
    transform: translateY(-0.15em) rotate(45deg);
  }

  /* overflow: what happens to items that do not fit the row. */
  .masthead-nav--wrap .masthead-nav-links > ul {
    flex-wrap: wrap;
  }
  /* --more folds the items past the room into a last item the behaviour
     library builds. Without the library this rung is --wrap, so the property
     below is the whole switch. */
  .masthead-nav--more .masthead-nav-links > ul {
    --hub-overflow: more;
  }
  .masthead-nav--scroll .masthead-nav-links > ul {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    padding: var(--space-2) var(--space-3);
    mask-image: linear-gradient(to right, transparent, currentColor var(--space-3),
                                currentColor calc(100% - var(--space-3)), transparent);
  }
  .masthead-nav--scroll .masthead-nav-links > ul::-webkit-scrollbar {
    display: none;
  }
  .masthead-nav--scroll .masthead-nav-links > ul > li {
    flex: 0 0 auto;
  }
  /* A scrolling row clips anything that pops out of it, so its submenus run
     on beside their parent instead. */
  .masthead-nav--scroll .masthead-nav-links > ul > li:has(> ul) {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }
  .masthead-nav--scroll .masthead-nav-links ul ul {
    position: static;
    flex-direction: row;
    min-width: 0;
    padding: 0 0 0 var(--space-3);
    border: 0;
    border-inline-start: 1px solid var(--masthead-nav-edge);
    border-radius: 0;
    background: none;
    color: inherit;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
  }
  .masthead-nav--scroll .masthead-nav-links > ul > li:has(> ul) > a::after,
  .masthead-nav--scroll .masthead-nav-links > ul > li:has(> ul) > button::after {
    content: none;
  }

  /* submenu: --dropdown is the panel under its own item, above. --mega is one
     panel the width of the bar, its items in columns. */
  .masthead-nav--dropdown .masthead-nav-links > ul > li {
    position: relative;
  }
  .masthead-nav--mega .masthead-nav-links > ul > li {
    position: static;
  }
  .masthead-nav--mega .masthead-nav-links > ul > li > ul {
    display: block;
    inset-inline: 0;
    min-width: 0;
    padding: var(--space-5) var(--space-6);
    border-radius: 0 0 var(--card-radius) var(--card-radius);
    columns: 12rem;
    column-gap: var(--space-6);
  }
  .masthead-nav--mega .masthead-nav-links > ul > li > ul > li {
    break-inside: avoid;
  }
  .masthead-nav--mega .masthead-nav-links > ul > li > ul a,
  .masthead-nav--mega .masthead-nav-links > ul > li > ul button {
    padding-inline: 0;
  }

  /* layout=inline - mark, menu, controls, one row. */
  .masthead-nav--inline .masthead-nav-inner {
    justify-content: space-between;
  }
  .masthead-nav--inline .masthead-nav-links > ul {
    justify-content: flex-start;
  }

  /* layout=centred - mark on its own line, menu centred under it, controls
     parked in the corner so the mark stays optically centred. */
  .masthead-nav--centred .masthead-nav-inner {
    flex-wrap: wrap;
    gap: var(--space-3);
    padding-block: var(--space-5);
  }
  .masthead-nav--centred .masthead-nav-mark {
    margin-inline: auto;
  }
  .masthead-nav--centred .masthead-nav-disclosure {
    flex: 1 0 100%;
  }
  /* Centred by auto margins on the end items, not justify-content: a row
     wider than its box centres by pushing its first items off the left edge,
     where no scroll can reach them. */
  .masthead-nav--centred .masthead-nav-links > ul > li:first-child {
    margin-inline-start: auto;
  }
  .masthead-nav--centred .masthead-nav-links > ul > li:last-child {
    margin-inline-end: auto;
  }
  .masthead-nav--centred .masthead-nav-controls {
    position: absolute;
    inset-block-start: var(--space-5);
    inset-inline-end: var(--space-4);
  }

  /* Last in the block on purpose: it has to outrank --centred's taller
     padding, and the two selectors weigh the same. */
  .masthead-nav--pinned .masthead-nav-inner,
  .masthead-nav--compact .masthead-nav-inner {
    padding-block: var(--space-3);
  }
  .masthead-nav--pinned.masthead-nav--centred .masthead-nav-controls,
  .masthead-nav--compact.masthead-nav--centred .masthead-nav-controls {
    inset-block-start: var(--space-3);
  }
}

/* sticky=compact: once the page has scrolled, the bar tightens and the mark
   comes down a fifth. The behaviour library sets the attribute. */
.masthead-nav--compact[data-hub-shrink="scrolled"] .masthead-nav-inner {
  padding-block: var(--space-2);
}
.masthead-nav--compact[data-hub-shrink="scrolled"] .masthead-nav-logo {
  height: calc(var(--logo-height, 2.75rem) * 0.8);
}

/* ---- nav=minimal: no menu, the mark and the controls at every width ---- */
.masthead-nav--full .masthead-nav-links {
  display: block;
}
.masthead-nav--minimal .masthead-nav-links {
  display: none;
}
.masthead-nav--minimal .masthead-nav-tray {
  justify-content: flex-end;
}
/* These outweigh the menu rungs' rules, which name two classes and the
   tray: this rung has no sheet to slide, drop or scroll. */
@media (width < 60rem) {
  .masthead-nav--minimal .masthead-nav-toggle {
    display: none;
  }
  .masthead-nav--minimal .masthead-nav-inner .masthead-nav-disclosure {
    order: 0;
    flex: 0 0 auto;
    max-width: none;
  }
  .masthead-nav--minimal .masthead-nav-inner .masthead-nav-disclosure::details-content {
    content-visibility: visible;
    block-size: auto;
  }
  .masthead-nav--minimal .masthead-nav-inner .masthead-nav-disclosure::before {
    content: none;
  }
  .masthead-nav--minimal .masthead-nav-disclosure .masthead-nav-tray {
    display: flex;
    position: static;
    width: auto;
    max-height: none;
    padding: 0;
    border: 0;
    background: none;
    box-shadow: none;
    visibility: visible;
    translate: none;
  }
  .masthead-nav--minimal .masthead-nav-controls {
    order: 0;
    width: auto;
    flex-direction: row;
    align-items: center;
  }
  /* The join control is the point of a page with no menu; the login link
     returns above 60rem. */
  .masthead-nav--minimal .masthead-nav-login {
    display: none;
  }
}

/* ---- menu-align: which edge the small-screen menu is set against ----
   Below 60rem only: above it `layout` already decides where the menu sits. */
@media (width < 60rem) {
  .masthead-nav--menu-start .masthead-nav-tray {
    text-align: start;
  }
  .masthead-nav--menu-start .masthead-nav-links a,
  .masthead-nav--menu-start .masthead-nav-links button,
  .masthead-nav--menu-start .masthead-nav-login {
    justify-content: flex-start;
  }
  .masthead-nav--menu-centre .masthead-nav-tray {
    text-align: center;
  }
  .masthead-nav--menu-centre .masthead-nav-links a,
  .masthead-nav--menu-centre .masthead-nav-links button,
  .masthead-nav--menu-centre .masthead-nav-login {
    justify-content: center;
  }
  .masthead-nav--menu-centre .masthead-nav-links ul ul {
    align-items: center;
    padding-inline: 0;
    border-inline: none;
  }
  .masthead-nav--menu-end .masthead-nav-tray {
    text-align: end;
  }
  .masthead-nav--menu-end .masthead-nav-links a,
  .masthead-nav--menu-end .masthead-nav-links button,
  .masthead-nav--menu-end .masthead-nav-login {
    justify-content: flex-end;
  }
  /* The rule moves with the items, or it is left down the empty side. */
  .masthead-nav--menu-end .masthead-nav-links ul ul {
    align-items: flex-end;
    padding-inline: 0 var(--space-4);
    border-inline: none;
    border-inline-end: 1px solid var(--masthead-nav-edge);
  }
}

/* No easing keyword follows --transition-fast below: brands ship that token
   with an easing in it, and a second keyword makes the declaration invalid. */
@media (prefers-reduced-motion: no-preference) {
  .masthead-nav-toggle-icon,
  .masthead-nav-toggle-icon::before,
  .masthead-nav-toggle-icon::after {
    transition: transform var(--transition-fast),
                background var(--transition-fast),
                top var(--transition-fast);
  }
  .masthead-nav-links ul ul {
    transition: opacity var(--transition-fast);
  }
  /* `visibility` is in the list so the panel stays on screen while it leaves. */
  .masthead-nav--drawer .masthead-nav-tray {
    transition: translate var(--transition-fast),
                visibility var(--transition-fast);
  }
  .masthead-nav--drawer .masthead-nav-disclosure::before {
    transition: opacity var(--transition-fast),
                visibility var(--transition-fast);
  }
  .masthead-nav--compact .masthead-nav-inner {
    transition: padding var(--transition-fast);
  }
  .masthead-nav--compact .masthead-nav-logo {
    transition: height var(--transition-fast);
  }
}
/* Belt and braces if a brand reintroduces a transition on these. */
@media (prefers-reduced-motion: reduce) {
  .masthead-nav-toggle-icon,
  .masthead-nav-toggle-icon::before,
  .masthead-nav-toggle-icon::after {
    transition: none;
  }
  .masthead-nav-links ul ul {
    transition: none;
  }
  .masthead-nav--drawer .masthead-nav-tray,
  .masthead-nav--drawer .masthead-nav-disclosure::before,
  .masthead-nav--compact .masthead-nav-inner,
  .masthead-nav--compact .masthead-nav-logo {
    transition: none;
  }
}
/* === /pattern masthead-nav@10 === */

/* === pattern crumb-trail@1 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* crumb-trail v1 - tokens only, selectors prefixed */
.crumb-trail {
  box-sizing: border-box;
  margin-inline: auto;
  padding-block: var(--space-3) var(--space-2);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-soft);
}
.crumb-trail--page {
  width: min(100% - 2 * var(--space-4), var(--container-max));
}
/* 52rem is the article column, held by the article masthead, the contents
   list and the author block. Any other number puts a second left edge on
   the page. */
.crumb-trail--column {
  width: min(100% - 2 * var(--space-4), 52rem);
}
.crumb-trail-link {
  color: var(--color-text-soft);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
.crumb-trail-link:hover {
  color: var(--color-text);
}
.crumb-trail-link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}
.crumb-trail-separator {
  color: var(--color-text-soft);
}
.crumb-trail-current {
  color: var(--color-text);
  font-weight: 600;
}
/* === /pattern crumb-trail@1 === */

/* === pattern opener-split@4 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* opener-split v1 - tokens only, selectors prefixed */
.opener-split {
  --opener-split-title-measure: 8.75em;
  --opener-split-intro-measure: 42ch;
  display: grid;
  gap: var(--space-5);
  max-width: var(--container-max);
  margin-inline: auto;
  /* Section gutter idiom, so this lines up with what it introduces. */
  padding: var(--space-8) var(--space-4) var(--space-6);
}
.opener-split-eyebrow {
  color: var(--color-text-soft);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
}
.opener-split-title {
  font-family: var(--font-heading);
  /* Page ground and a clamp floor above 24px: both halves of the heading
   token's contract. Keep both if you edit it. */
  color: var(--color-heading);
  font-size: calc(clamp(1.875rem, 4.6vw, 3.5rem) * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  letter-spacing: calc(-0.025em + var(--heading-tracking, 0) * 1em);
  line-height: calc(1.05 * var(--heading-leading, 1));
  margin: 0;
  text-wrap: balance;
}
.opener-split-intro {
  color: var(--color-text-soft);
  font-size: 1rem;
  line-height: 1.65;
  max-width: var(--opener-split-intro-measure);
  margin: 0;
}
.opener-split--ruled {
  border-bottom: 1px solid var(--color-rule);
  padding-bottom: var(--space-8);
}
/* Side by side only from 64rem: two half-width columns at tablet width leave
   the title too narrow to hold a heading. See the README. */
@media (min-width: 48rem) {
  .opener-split {
    padding-inline: var(--space-6);
  }
}
@media (min-width: 64rem) {
  .opener-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    column-gap: var(--space-6);
  }
  .opener-split-title {
    max-width: var(--opener-split-title-measure);
  }
  .opener-split-intro {
    justify-self: end;
    /* Optical nudge onto the title's baseline: the type sizes differ too
     much for align-items alone. */
    padding-bottom: var(--space-2);
  }
}
/* === /pattern opener-split@4 === */

/* === pattern article-toc@2 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* article-toc v2 - tokens only, selectors prefixed */
.article-toc {
  width: min(100% - 2 * var(--space-4), 52rem);
  margin-inline: auto;
  margin-block: var(--space-6);
  border-block: 1px solid var(--color-rule);
}
.article-toc-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 44px;
  padding-block: var(--space-3);
  cursor: pointer;
  color: var(--color-text);
  /* Both lines are needed to drop the default triangle. */
  list-style: none;
}
.article-toc-summary::-webkit-details-marker {
  display: none;
}
/* Required: removing the marker above removes the focus affordance some
   browsers hang off it. */
.article-toc-summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}
.article-toc-label {
  font-family: var(--font-heading);
  /* Not 0.8125rem: this rides --type-scale and would drop under the text floor. */
  font-size: calc(0.875rem * var(--type-scale, 1));
  font-weight: 700;
  letter-spacing: calc(0.06em + var(--heading-tracking, 0) * 1em);
  line-height: calc(1.3 * var(--heading-leading, 1));
  text-transform: uppercase;
}
/* The indicator is a shape, not a glyph and never colour alone. */
.article-toc-icon {
  position: relative;
  flex: 0 0 auto;
  width: var(--space-4);
  height: var(--space-4);
}
.article-toc-icon::before,
.article-toc-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 60%;
  height: 2px;
  margin-block-start: -1px;
  background: var(--color-text-soft);
}
.article-toc-icon::before {
  inset-inline-start: 0;
  transform: rotate(45deg);
}
.article-toc-icon::after {
  inset-inline-end: 0;
  transform: rotate(-45deg);
}
/* A state change, not an animation: it applies under reduced motion too. */
.article-toc-disclosure[open] .article-toc-icon {
  transform: rotate(180deg);
}
.article-toc-list {
  list-style: none;
  margin: 0;
  padding: 0 0 var(--space-3);
}
.article-toc-item + .article-toc-item {
  border-block-start: 1px solid var(--color-rule);
}
.article-toc-link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding-block: var(--space-2);
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.4;
  text-decoration: none;
}
.article-toc-link:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
.article-toc-link:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: -3px;
}
/* === /pattern article-toc@2 === */

/* === pattern prose-column@5 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* prose-column v1 - tokens only, selectors prefixed */
.prose-column {
  --prose-column-measure: 68ch;
  width: min(100% - 2 * var(--space-4), var(--prose-column-measure));
  margin-inline: auto;
  padding-block: var(--space-6);
  color: var(--color-text);
  font-size: 1.0625rem;
  line-height: 1.7;
}
.prose-column > :first-child {
  margin-top: 0;
}
.prose-column > :last-child {
  margin-bottom: 0;
}
.prose-column p {
  margin: 0 0 var(--space-5);
}
.prose-column h2,
.prose-column h3 {
  font-family: var(--font-heading);
  letter-spacing: calc(-0.02em + var(--heading-tracking, 0) * 1em);
  line-height: calc(1.2 * var(--heading-leading, 1));
  text-wrap: balance;
}
/* --color-heading on an h2 only: the clamp floor is 28px, above the size the
   token is promised at, and the column paints no ground of its own. */
.prose-column h2 {
  color: var(--color-heading);
  font-size: calc(clamp(1.75rem, 3vw, 2.25rem) * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  margin: var(--space-8) 0 var(--space-4);
}
/* h3 is under the size the heading token covers, so it takes the body ink. */
.prose-column h3 {
  color: var(--color-text);
  font-size: calc(1.25rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  margin: var(--space-6) 0 var(--space-3);
}
.prose-column ul,
.prose-column ol {
  margin: 0 0 var(--space-5);
  padding-inline-start: var(--space-6);
}
.prose-column li {
  margin-bottom: var(--space-2);
}
.prose-column li::marker {
  color: var(--color-text-soft);
}
.prose-column a {
  /* Inherit: the underline carries the affordance, on every ground and in
   every ink. See the README. */
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}
.prose-column a:hover {
  text-decoration-thickness: 2px;
}
.prose-column a:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}
.prose-column blockquote {
  margin: var(--space-6) 0;
  padding-inline-start: var(--space-5);
  /* The rule is decoration beside a quote the <blockquote> already marks up,
   so a brand may set it as soft as it likes. */
  border-inline-start: 3px solid var(--color-rule);
}
.prose-column blockquote p {
  font-size: 1.1875rem;
  line-height: 1.55;
  margin-bottom: var(--space-3);
}
.prose-column cite {
  color: var(--color-text-soft);
  font-size: 0.9375rem;
  font-style: normal;
}
/* A table is wider than a phone and says so: it scrolls inside its own box
   rather than making the page scroll sideways. */
.prose-column figure {
  margin: var(--space-6) 0;
  overflow-x: auto;
}
.prose-column table {
  border-collapse: collapse;
  width: 100%;
  min-width: 28rem;
  font-size: 0.9375rem;
}
.prose-column caption {
  color: var(--color-text-soft);
  font-size: 0.875rem;
  text-align: start;
  margin-bottom: var(--space-3);
}
.prose-column th,
.prose-column td {
  text-align: start;
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-rule);
  vertical-align: top;
}
.prose-column thead th {
  background: var(--color-surface-soft);
  border-bottom-width: 2px;
}
.prose-column tbody th {
  font-weight: 700;
}
.prose-column td {
  color: var(--color-text-soft);
}
.prose-column thead th:first-child {
  border-start-start-radius: var(--card-radius);
}
.prose-column thead th:last-child {
  border-start-end-radius: var(--card-radius);
}
/* === /pattern prose-column@5 === */

/* === pattern pull-quote@1 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* pull-quote v1 - tokens only, selectors prefixed */
.pull-quote {
  --pull-quote-measure: 68ch;
  box-sizing: border-box;
  width: min(100% - 2 * var(--space-4), var(--pull-quote-measure));
  margin-block: var(--space-6);
  margin-inline: auto;
  padding-block: var(--space-5);
  /* The ch measure resolves against this: it lands on the article column. */
  font-size: 1.0625rem;
  border-block: 1px solid var(--color-rule);
}
.pull-quote-claim {
  /* em, not ch - a measure must not depend on the face in use. */
  max-width: 15em;
  margin: 0;
  font-family: var(--font-heading);
  font-size: calc(clamp(1.375rem, 3.2vw, 2rem) * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  letter-spacing: calc(-0.02em + var(--heading-tracking, 0) * 1em);
  line-height: calc(1.25 * var(--heading-leading, 1));
  color: var(--color-text);
  text-wrap: balance;
}
@media (min-width: 48rem) {
  .pull-quote {
    padding-block: var(--space-6);
  }
}
/* === /pattern pull-quote@1 === */

/* === pattern cta-band@5 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* cta-band - tokens only, selectors prefixed */

/* Each rung names its own ground, ink, control pair and ring, and every rule
   below reads those rather than a token, so nothing here knows which ground it
   is on. The ring is per rung and not --color-focus everywhere: on --brand and
   --deep that token is a brand colour landing on a brand colour, and it
   disappears into the band on every sample brand. See the README. */
.cta-band--plain {
  --cta-band-ground: var(--color-bg);
  --cta-band-ink: var(--color-text);
  --cta-band-btn-face: var(--color-primary);
  --cta-band-btn-ink: var(--color-on-primary);
  --cta-band-ring: var(--color-focus);
}
.cta-band--soft {
  --cta-band-ground: var(--color-surface-soft);
  --cta-band-ink: var(--color-text);
  --cta-band-btn-face: var(--color-primary);
  --cta-band-btn-ink: var(--color-on-primary);
  --cta-band-ring: var(--color-focus);
}
.cta-band--brand {
  --cta-band-ground: var(--color-primary);
  --cta-band-ink: var(--color-on-primary);
  --cta-band-btn-face: var(--color-on-primary);
  --cta-band-btn-ink: var(--color-primary);
  --cta-band-ring: var(--color-on-primary);
}
.cta-band--deep {
  --cta-band-ground: var(--color-scrim);
  --cta-band-ink: var(--color-on-scrim);
  --cta-band-btn-face: var(--color-on-scrim);
  --cta-band-btn-ink: var(--color-scrim);
  --cta-band-ring: var(--color-on-scrim);
}
.cta-band {
  padding-block: var(--space-12);
  padding-inline: var(--space-4);
  background: var(--cta-band-ground);
  color: var(--cta-band-ink);
  text-align: center;
}
.cta-band-inner {
  max-width: var(--container-max);
  margin-inline: auto;
}
.cta-band-eyebrow {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 var(--space-4);
}
/* Not --color-heading: that token is promised against --color-bg, and three of
   the four rungs paint a ground of their own. */
.cta-band-title {
  font-family: var(--font-heading);
  color: var(--cta-band-ink);
  font-size: calc(clamp(2rem, 4.5vw, 3.25rem) * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  letter-spacing: calc(-0.02em + var(--heading-tracking, 0) * 1em);
  line-height: calc(1.1 * var(--heading-leading, 1));
  margin: 0 0 var(--space-4);
  text-wrap: balance;
}
.cta-band-lead {
  font-size: 1.0625rem;
  line-height: 1.6;
  max-width: 46ch;
  margin: 0 auto var(--space-6);
}
.cta-band-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  /* 48px target, above the 44px AAA floor. */
  min-height: 48px;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--btn-radius);
  background: var(--cta-band-btn-face);
  color: var(--cta-band-btn-ink);
  font-weight: 700;
  line-height: 1.5;
  text-decoration: none;
}
.cta-band-btn:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
/* The offset leaves a band-coloured gap, putting the guaranteed pair either
   side of the ring. */
.cta-band-btn:focus-visible {
  outline: 3px solid var(--cta-band-ring);
  outline-offset: 4px;
}
/* === /pattern cta-band@5 === */

/* === pattern colophon@2 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* colophon v2 - tokens only, selectors prefixed */
.colophon {
  border-top: 1px solid var(--color-rule);
  padding-block: var(--space-8) var(--space-6);
  font-size: 0.875rem;
  color: var(--color-text-soft);
}
.colophon--plain {
  background: var(--color-bg);
}
.colophon--soft {
  background: var(--color-surface);
}
.colophon-inner {
  width: 92%;
  max-width: var(--container-max);
  margin-inline: auto;
  display: grid;
  gap: var(--space-4);
}
/* layout: --line is the centred stack at every width; --columns spreads the
   three groups across the row from 60rem up and is the same stack below. */
.colophon--line .colophon-inner,
.colophon--columns .colophon-inner {
  justify-items: center;
  text-align: center;
}
/* mark: the brand mark above everything else, or nothing at all. */
.colophon--none .colophon-mark {
  display: none;
}
.colophon--logo .colophon-mark {
  display: inline-flex;
  margin-block-end: var(--space-2);
}
/* The set height is the floor: `height: auto` under a `max-height` alone
   resolves a viewBox-only SVG to 0x0. A tenth over the header's height, so
   the footer mark reads as a signature and not a repeat of the bar. */
.colophon-logo {
  display: block;
  width: auto;
  height: calc(var(--logo-height, 2.75rem) * 1.1);
  max-width: 100%;
  object-fit: contain;
}
/* The platform decides the menu's own markup, so its rules reach it by
   descent rather than by a generated class name. */
.colophon-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-6);
}
.colophon-legal {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-6);
}
.colophon-menu a,
.colophon-legal a {
  color: var(--color-text-soft);
  text-decoration: none;
}
.colophon-menu a:hover,
.colophon-legal a:hover {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
.colophon a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}
.colophon-copyright {
  margin: 0;
}
@media (min-width: 60rem) {
  .colophon--columns .colophon-inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    justify-items: start;
    align-items: start;
    text-align: start;
    gap: var(--space-6) var(--space-8);
  }
  /* A brand with no managed footer menu deletes the nav: two columns then,
     not two columns and a hole. */
  .colophon--columns .colophon-inner:not(:has(.colophon-menu)) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .colophon--columns .colophon-mark {
    grid-column: 1 / -1;
  }
  .colophon--columns .colophon-menu ul,
  .colophon--columns .colophon-legal {
    flex-direction: column;
    justify-content: flex-start;
    gap: var(--space-2);
  }
  .colophon--columns .colophon-copyright {
    justify-self: end;
    text-align: end;
  }
}
/* === /pattern colophon@2 === */

/* === pattern cta-sticky@7 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* cta-sticky v6 - tokens only, selectors prefixed. */
@media (width < 60rem) {
  .cta-sticky {
    position: fixed;
    inset-inline: 0;
    bottom: 0;
    z-index: 50;
    box-sizing: border-box;
    padding: var(--space-2) var(--space-4);
    padding-bottom: calc(var(--space-2) + env(safe-area-inset-bottom, 0px));
    background: var(--color-surface);
    /* Two separations: --color-rule may be set to nothing. */
    border-top: 1px solid var(--color-rule);
    box-shadow: 0 -1px 0 color-mix(in srgb, var(--color-text) 14%, transparent),
                0 -8px 24px color-mix(in srgb, var(--color-text) 10%, transparent);
  }
  .cta-sticky-btn {
    display: block;
    box-sizing: border-box;
    text-align: center;
    background: var(--color-primary);
    color: var(--color-on-primary);
    font-weight: 700;
    text-decoration: none;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--btn-radius);
    /* The bar's height and the body clearance below must stay in step. */
    /* Fallback required: declared inside body:has(). */
    min-height: var(--cta-sticky-target, 48px);
    line-height: 1.5;
  }
  .cta-sticky-btn:hover {
    background: var(--color-primary-dark);
  }
  /* Focus needs its own indicator, not the hover fill. */
  .cta-sticky-btn:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 3px;
  }
  /* Clearance, derived from the same tokens as the bar. */
  body:has(.cta-sticky) {
    /* On body so both this rule and the bar read it. */
    --cta-sticky-target: 48px;
    padding-bottom: calc(
      max(var(--cta-sticky-target), 1.5em + 2 * var(--space-3))
      + 2 * var(--space-2) + 1px + env(safe-area-inset-bottom, 0px)
    );
  }
}
@media (width >= 60rem) {
  .cta-sticky {
    display: none;
  }
}
/* === /pattern cta-sticky@7 === */

/* === pattern anchored-split@3 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* anchored-split v2 - tokens only, selectors prefixed */
/* Both sides share one ground; every rule reads this set. The base carries the
   plain ground's values, so a copy that loses its modifier still renders. */
.anchored-split,
.anchored-split--plain {
  --anchored-split-ground: var(--color-bg);
  --anchored-split-ink: var(--color-text);
  --anchored-split-quiet: var(--color-text-soft);
  --anchored-split-title-ink: var(--color-heading, var(--color-text));
  --anchored-split-edge: var(--color-rule, color-mix(in srgb, var(--color-text) 18%, transparent));
}
.anchored-split--soft {
  --anchored-split-ground: var(--color-surface-soft);
  --anchored-split-ink: var(--color-text);
  --anchored-split-quiet: var(--color-text-soft);
  --anchored-split-title-ink: var(--color-text);
  --anchored-split-edge: var(--color-rule, color-mix(in srgb, var(--color-text) 18%, transparent));
}
.anchored-split {
  padding-block: var(--space-8);
  padding-inline: var(--space-4);
  background: var(--anchored-split-ground);
  color: var(--anchored-split-ink);
}
.anchored-split-inner {
  max-width: var(--container-max, 72rem);
  margin-inline: auto;
  display: grid;
  gap: var(--space-6);
}
.anchored-split-eyebrow {
  color: var(--anchored-split-quiet);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
}
.anchored-split-title {
  font-family: var(--font-heading);
  color: var(--anchored-split-title-ink);
  font-size: calc(clamp(1.75rem, 3vw, 2.75rem) * var(--type-scale, 1));
  line-height: calc(1.12 * var(--heading-leading, 1));
  letter-spacing: calc(-0.02em + var(--heading-tracking, 0) * 1em);
  margin: 0 0 var(--space-4);
  max-width: 11.25em;
  text-wrap: balance;
}
.anchored-split-lede {
  color: var(--anchored-split-quiet);
  font-size: 1.0625rem;
  line-height: 1.55;
  max-width: 40ch;
  margin: 0;
}
.anchored-split-entry {
  padding-block: var(--space-5);
  border-block-start: 1px solid var(--anchored-split-edge);
}
.anchored-split-entry:first-child {
  border-block-start: 0;
  padding-block-start: 0;
}
.anchored-split-entry-title {
  font-family: var(--font-heading);
  color: var(--anchored-split-ink);
  font-size: calc(1.25rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  line-height: calc(1.25 * var(--heading-leading, 1));
  margin: 0 0 var(--space-3);
}
.anchored-split-entry-body {
  color: var(--anchored-split-ink);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 62ch;
  margin: 0;
}
/* The asymmetry is the point - 40/60, never 50/50, which reads as
   indecision. Below this width the two stack and nothing sticks, which is
   the correct behaviour rather than a fallback: on a phone there is no
   second column for the anchor to stay beside. */
@media (min-width: 60rem) {
  .anchored-split {
    padding-inline: var(--space-8);
  }
  .anchored-split-inner {
    grid-template-columns: 4fr 6fr;
    gap: var(--space-8);
    align-items: start;
  }
  /* align-self is what keeps the panel its own height. Without it the grid
     stretches it to the row and it sticks with nothing above it to hold. */
  .anchored-split-anchor {
    position: sticky;
    inset-block-start: var(--space-6);
    align-self: start;
  }
}
/* === /pattern anchored-split@3 === */

/* === pattern key-takeaways@1 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* key-takeaways v1 - tokens only, selectors prefixed */
.key-takeaways {
  --key-takeaways-measure: 68ch;
  box-sizing: border-box;
  width: min(100% - 2 * var(--space-4), var(--key-takeaways-measure));
  margin-block: var(--space-6);
  margin-inline: auto;
  padding: var(--space-5);
  background: var(--color-surface-soft);
  border: var(--card-border);
  border-radius: var(--card-radius);
  color: var(--color-text);
  /* The body size the article column is set in: the measure above is in ch,
     so it resolves against this and lands on the same column. */
  font-size: 1.0625rem;
  line-height: 1.6;
}
.key-takeaways-heading {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-size: calc(1rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  letter-spacing: calc(0.06em + var(--heading-tracking, 0) * 1em);
  line-height: calc(1.3 * var(--heading-leading, 1));
  text-transform: uppercase;
  /* --color-text: the block paints a surface, and the label is small. */
  color: var(--color-text);
}
.key-takeaways-list {
  margin: 0;
  padding-inline-start: var(--space-5);
}
.key-takeaways-point {
  margin: 0 0 var(--space-3);
}
.key-takeaways-point:last-child {
  margin-bottom: 0;
}
.key-takeaways-point::marker {
  color: var(--color-text-soft);
}
/* === /pattern key-takeaways@1 === */

/* === pattern link-cluster@6 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* link-cluster v1 - tokens only, selectors prefixed */
/* Each ground names its own ink and pill face; every rule reads the pair. */
.link-cluster--plain {
  --link-cluster-ground: var(--color-bg);
  --link-cluster-ink: var(--color-text);
  --link-cluster-quiet: var(--color-text-soft);
  --link-cluster-title-ink: var(--color-heading);
  --link-cluster-face: var(--color-surface);
  --link-cluster-ring: var(--color-focus);
  --link-cluster-edge: var(--color-rule);
}
.link-cluster--soft {
  --link-cluster-ground: var(--color-surface-soft);
  --link-cluster-ink: var(--color-text);
  --link-cluster-quiet: var(--color-text-soft);
  --link-cluster-title-ink: var(--color-text);
  --link-cluster-face: var(--color-surface);
  --link-cluster-ring: var(--color-focus);
  --link-cluster-edge: var(--color-rule);
}
.link-cluster--brand {
  --link-cluster-ground: var(--color-primary);
  --link-cluster-ink: var(--color-primary);
  --link-cluster-quiet: var(--color-on-primary);
  --link-cluster-title-ink: var(--color-on-primary);
  --link-cluster-face: var(--color-on-primary);
  --link-cluster-ring: var(--color-on-primary);
  --link-cluster-edge: transparent;
}
.link-cluster {
  padding-block: var(--space-8);
  padding-inline: var(--space-4);
  background: var(--link-cluster-ground);
}
.link-cluster-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  text-align: center;
}
.link-cluster-title {
  font-family: var(--font-heading);
  color: var(--link-cluster-title-ink);
  font-size: calc(clamp(1.75rem, 2.8vw, 2.25rem) * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  letter-spacing: calc(-0.02em + var(--heading-tracking, 0) * 1em);
  line-height: calc(1.2 * var(--heading-leading, 1));
  margin: 0 0 var(--space-3);
  text-wrap: balance;
}
.link-cluster-intro {
  color: var(--link-cluster-quiet);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 46ch;
  margin: 0 auto var(--space-5);
}
.link-cluster-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}
/* The pill is a target before it is a shape: 44px is the floor, and the
   horizontal padding is what keeps two short place names apart. */
.link-cluster-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--link-cluster-edge);
  border-radius: var(--chip-radius);
  /* The face alone does not separate a pill from the ground on a brand whose
   surface and surface-soft are nearly the same colour, so the edge is drawn
   on the two grounds where that can happen. */
  background: var(--link-cluster-face);
  color: var(--link-cluster-ink);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
}
.link-cluster-link:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
.link-cluster-link:focus-visible {
  outline: 3px solid var(--link-cluster-ring);
  outline-offset: 3px;
}
/* === /pattern link-cluster@6 === */

/* === pattern steps-plain@4 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* steps-plain v1 - tokens only, selectors prefixed */
.steps-plain {
  --steps-plain-cell-min: 15rem;
  --steps-plain-badge-size: 2.75rem;
  padding-block: var(--space-8);
  padding-inline: var(--space-4);
  counter-reset: steps-plain;
}
.steps-plain-inner {
  max-width: var(--container-max);
  margin-inline: auto;
}
.steps-plain-eyebrow {
  color: var(--color-text-soft);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
}
.steps-plain-title {
  font-family: var(--font-heading);
  /* Page ground and a clamp floor above 24px: both halves of the heading
   token's contract. Keep both if you edit it. */
  color: var(--color-heading);
  font-size: calc(clamp(1.75rem, 3.4vw, 2.75rem) * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  letter-spacing: calc(-0.02em + var(--heading-tracking, 0) * 1em);
  line-height: calc(1.15 * var(--heading-leading, 1));
  margin: 0 0 var(--space-4);
  text-wrap: balance;
}
.steps-plain-intro {
  color: var(--color-text-soft);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 46ch;
  margin: 0 0 var(--space-6);
}
/* Phones: a divided list, the numeral in its own gutter. */
.steps-plain-list {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}
.steps-plain-item {
  counter-increment: steps-plain;
  display: grid;
  grid-template-columns: var(--steps-plain-badge-size) 1fr;
  column-gap: var(--space-4);
  align-items: start;
  padding-block: var(--space-5);
  border-top: 1px solid var(--color-rule);
}
.steps-plain-item:last-child {
  border-bottom: 1px solid var(--color-rule);
}
.steps-plain-item::before {
  content: counter(steps-plain, decimal-leading-zero);
  grid-row: 1 / span 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--steps-plain-badge-size);
  height: var(--steps-plain-badge-size);
  border-radius: var(--chip-radius);
  /* --color-text on --color-surface-soft: the one ink promised against every
   page ground, on the one tinted fill that is one. */
  background: var(--color-surface-soft);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: calc(0.9375rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  font-variant-numeric: tabular-nums;
}
.steps-plain-heading {
  font-family: var(--font-heading);
  color: var(--color-text);
  font-size: calc(1.125rem * var(--type-scale, 1));
  font-weight: var(--weight-display, 700);
  line-height: calc(1.3 * var(--heading-leading, 1));
  margin: 0 0 var(--space-2);
  text-wrap: balance;
}
.steps-plain-body {
  color: var(--color-text-soft);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin: 0;
}
.steps-plain-note {
  color: var(--color-text-soft);
  font-size: 0.875rem;
  line-height: 1.6;
  margin: var(--space-5) 0 0;
}
/* From the tablet band the list becomes one bordered box whose cells are
   separated by the grid gap showing the ground through - not by cell borders,
   which double up wherever two cells meet. */
@media (min-width: 48rem) {
  .steps-plain {
    padding-inline: var(--space-6);
  }
  .steps-plain-list {
    grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
    gap: 1px;
    /* The hairline is drawn per cell, not by painting the container and
     letting the cells mask it: a wrapped final row leaves grid areas no cell
     covers, and those would show as a slab of rule colour. */
    background: var(--color-surface);
    border-radius: var(--card-radius);
    overflow: hidden;
  }
  .steps-plain-item {
    display: flex;
    flex-direction: column;
    min-height: var(--steps-plain-cell-min);
    padding: var(--space-5);
    background: var(--color-surface);
    border: 0;
    box-shadow: 0 0 0 1px var(--color-rule);
  }
  .steps-plain-item:last-child {
    border: 0;
  }
  .steps-plain-item::before {
    margin-bottom: var(--space-6);
  }
  /* margin-top:auto drives the copy to the cell floor, so cells carrying
   unequal amounts of it still line up as a set. */
  .steps-plain-body {
    margin-top: auto;
  }
}
/* === /pattern steps-plain@4 === */

/* === pattern faq-details@6 (library v148; appended by page_assemble.py -- adopt a newer version by replacing this block, never by adding a second) === */
/* faq-details v3 - tokens only, selectors prefixed.
   No script anywhere: <details>/<summary> gives keyboard operation, the
   expanded/collapsed announcement and find-in-page for free. */
.faq-details {
  padding-block: var(--space-8);
}
/* Keep the measure: answers read badly at full width. */
.faq-details-inner {
  width: min(100% - 2 * var(--space-4), 48rem);
  margin-inline: auto;
}
.faq-details-title {
  font-family: var(--font-heading);
  color: var(--color-heading);
  font-size: calc(clamp(1.75rem, 1rem + 2vw, 2.25rem) * var(--type-scale, 1));
  margin: 0 0 var(--space-6);
}
/* A rule under every item, plus one above the first. */
.faq-details-item {
  border-block-end: 1px solid var(--color-rule);
}
.faq-details-item:first-of-type {
  border-block-start: 1px solid var(--color-rule);
}
.faq-details-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
  cursor: pointer;
  font-family: var(--font-heading);
  /* --color-text: this is not large text. */
  color: var(--color-text);
  /* Both lines are needed to drop the default triangle. */
  list-style: none;
}
.faq-details-summary::-webkit-details-marker {
  display: none;
}
/* Required: removing the marker above removes the focus affordance some
   browsers hang off it. */
.faq-details-summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}
.faq-details-question {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
}
/* The indicator is a shape, not a glyph and never colour alone. */
.faq-details-icon {
  position: relative;
  flex: 0 0 auto;
  width: var(--space-5);
  height: var(--space-5);
}
.faq-details-icon::before,
.faq-details-icon::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 50%;
  height: 2px;
  margin-block-start: -1px;
  background: var(--color-text-soft);
}
.faq-details-icon::after {
  transform: rotate(90deg);
}
/* A state change, not an animation: it applies under reduced motion too. */
.faq-details-item[open] .faq-details-icon {
  transform: rotate(45deg);
}
.faq-details-answer {
  padding-block-end: var(--space-4);
  padding-inline-end: var(--space-6);
  color: var(--color-text-soft);
}
.faq-details-answer p {
  margin: 0 0 var(--space-3);
  line-height: 1.65;
}
.faq-details-answer p:last-child {
  margin-block-end: 0;
}
/* Motion is opt-in and only ever eases a state the page already reached. */
@media (prefers-reduced-motion: no-preference) {
  .faq-details-icon {
    transition: transform var(--transition-fast) ease-out;
  }
  .faq-details-item[open] .faq-details-answer {
    animation: faq-details-open var(--transition-fast) ease-out;
  }
}
@keyframes faq-details-open {
  from {
    opacity: 0;
    transform: translateY(-0.25rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* Belt and braces if a brand reintroduces a transition on these. */
@media (prefers-reduced-motion: reduce) {
  .faq-details-icon {
    transition: none;
  }
  .faq-details-answer {
    animation: none;
  }
}
/* === /pattern faq-details@6 === */