:root {
  --vaft-sidebar-width: 300px;
  --vaft-page-toc-width: 260px;
  --vaft-header-height: 50px;
  --vaft-body-color: #25364a;
  --vaft-heading-color: #10253d;
  --vaft-muted-color: #64748b;
  --vaft-link-color: #006a9e;
  --vaft-surface: #ffffff;
  --vaft-panel-surface: #f8fafc;
  --vaft-border: #dbe4ee;
  --vaft-inline-code-bg: #eaf3fb;
  --vaft-inline-code-fg: #173b5e;
  --vaft-code-bg: #272822;
  --vaft-code-border: #4d5146;
  --vaft-code-fg: #f8f8f2;
  --vaft-diagram-bg: #ffffff;
  --vaft-diagram-border: #dbe4ee;
  --vaft-mark-bg: #ffe08a;
  --vaft-mark-fg: #172033;
}

.book.color-theme-1 {
  --vaft-body-color: #433d2f;
  --vaft-heading-color: #2f2a20;
  --vaft-muted-color: #746b58;
  --vaft-link-color: #795400;
  --vaft-surface: #f3eacb;
  --vaft-panel-surface: #eee2bd;
  --vaft-border: #d8c89d;
  --vaft-inline-code-bg: #e8d9ad;
  --vaft-inline-code-fg: #473715;
}

.book.color-theme-2 {
  --vaft-body-color: #d5d9e2;
  --vaft-heading-color: #f2f4f8;
  --vaft-muted-color: #a6adbd;
  --vaft-link-color: #78c7ff;
  --vaft-surface: #1c1f2b;
  --vaft-panel-surface: #242837;
  --vaft-border: #3b4052;
  --vaft-inline-code-bg: #30364a;
  --vaft-inline-code-fg: #e7edf8;
}

.book .book-body .page-wrapper .page-inner section.normal {
  color: var(--vaft-body-color);
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1.7;
}

.book .book-body .page-wrapper .page-inner section.normal p,
.book .book-body .page-wrapper .page-inner section.normal li,
.book .book-body .page-wrapper .page-inner section.normal td,
.book .book-body .page-wrapper .page-inner section.normal th,
.book .book-body .page-wrapper .page-inner section.normal blockquote {
  color: var(--vaft-body-color);
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.book .book-body .page-wrapper .page-inner section.normal h1,
.book .book-body .page-wrapper .page-inner section.normal h2,
.book .book-body .page-wrapper .page-inner section.normal h3,
.book .book-body .page-wrapper .page-inner section.normal h4,
.book .book-body .page-wrapper .page-inner section.normal h5,
.book .book-body .page-wrapper .page-inner section.normal h6 {
  color: var(--vaft-heading-color);
  font-weight: 700;
  letter-spacing: -0.015em;
}

.book .book-body .page-wrapper .page-inner section.normal h1 {
  font-size: 3.2rem;
  line-height: 1.2;
}

.book .book-body .page-wrapper .page-inner section.normal h2 {
  font-size: 2.4rem;
  line-height: 1.3;
}

.book .book-body .page-wrapper .page-inner section.normal h3 {
  font-size: 2rem;
  line-height: 1.35;
}

.book .book-body .page-wrapper .page-inner section.normal h4,
.book .book-body .page-wrapper .page-inner section.normal h5,
.book .book-body .page-wrapper .page-inner section.normal h6 {
  font-size: 1.6rem;
  line-height: 1.45;
}

.book .book-body .page-wrapper .page-inner section.normal a {
  color: var(--vaft-link-color);
  font-weight: 600;
}

.book .book-body .page-wrapper .page-inner section.normal :not(pre) > code {
  color: var(--vaft-inline-code-fg);
  background: var(--vaft-inline-code-bg);
  border-radius: 4px;
  font-size: 0.875em;
  padding: 0.12em 0.3em;
}

.book .book-body .page-wrapper .page-inner section.normal .code-block-wrapper {
  position: relative;
  margin: 0 0 1.275em;
  overflow: hidden;
  background: var(--vaft-code-bg);
  border: 1px solid var(--vaft-code-border);
  border-radius: 8px;
}

.book .book-body .page-wrapper .page-inner section.normal .code-block-wrapper .highlight {
  margin: 0;
  background: transparent !important;
}

.book .book-body .page-wrapper .page-inner section.normal .code-block-wrapper pre,
.book .book-body .page-wrapper .page-inner section.normal pre {
  overflow-x: auto;
  overflow-y: hidden;
  margin: 0;
  padding: 1.4rem 6.5rem 1.4rem 1.6rem;
  color: var(--vaft-code-fg);
  background: var(--vaft-code-bg);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  white-space: pre;
  word-wrap: normal;
  -webkit-overflow-scrolling: touch;
}

.book .book-body .page-wrapper .page-inner section.normal .code-block-wrapper pre code,
.book .book-body .page-wrapper .page-inner section.normal pre code {
  display: inline;
  overflow: visible;
  margin: 0;
  padding: 0;
  color: inherit;
  background: transparent;
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1.6;
  white-space: pre;
}

.book .book-body .page-wrapper .page-inner section.normal .copy-code-button {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  z-index: 2;
  min-width: 5rem;
  padding: 0.35rem 0.65rem;
  color: #ffffff;
  background: #3c4148;
  border: 1px solid #8b929b;
  border-radius: 4px;
  font: 600 1.2rem/1.4 "Helvetica Neue", Helvetica, Arial, sans-serif;
  cursor: pointer;
}

.book .book-body .page-wrapper .page-inner section.normal .copy-code-button:hover,
.book .book-body .page-wrapper .page-inner section.normal .copy-code-button:focus-visible {
  background: #505762;
  border-color: #ffffff;
  outline: none;
}

.book .book-body .page-wrapper .page-inner section.normal pre.mermaid-diagram {
  margin: 0 0 1.275em;
  padding: 2rem;
  overflow-x: auto;
  overflow-y: hidden;
  color: var(--vaft-body-color);
  background: var(--vaft-diagram-bg);
  border: 1px solid var(--vaft-diagram-border);
  border-radius: 8px;
  text-align: center;
  white-space: normal;
  -webkit-overflow-scrolling: touch;
}

.book .book-body .page-wrapper .page-inner section.normal pre.mermaid-diagram code.language-mermaid {
  display: block;
  min-width: 68rem;
  padding: 0;
  color: var(--vaft-body-color);
  background: transparent;
  font-size: inherit;
  line-height: normal;
  white-space: normal;
}

.book .book-body .page-wrapper .page-inner section.normal pre.mermaid-diagram svg {
  display: block;
  width: 100%;
  max-width: none !important;
  height: auto;
  margin: 0 auto;
}

.book .book-body .page-wrapper .page-inner section.normal mark[data-markjs="true"],
#book-search-results span.search-highlight-keyword {
  color: var(--vaft-mark-fg) !important;
  background: var(--vaft-mark-bg) !important;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(23, 32, 51, 0.18);
  font-style: normal;
}

.book .book-body .page-wrapper .page-inner section.normal img {
  border-radius: 8px;
}

.page-toc {
  color: var(--vaft-body-color);
  background: var(--vaft-panel-surface);
  border-left: 1px solid var(--vaft-border);
}

.page-toc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--vaft-header-height);
  padding: 0 1.8rem;
  color: var(--vaft-heading-color);
  border-bottom: 1px solid var(--vaft-border);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.page-toc-nav {
  padding: 1.6rem 1.8rem 2.4rem;
}

.page-toc-list,
.page-toc-submenu {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-toc-submenu {
  padding-left: 1.2rem;
}

.page-toc-item {
  margin: 0;
}

.page-toc-link {
  display: block;
  padding: 0.5rem 0;
  color: var(--vaft-muted-color);
  border-left: 2px solid transparent;
  font-size: 1.35rem;
  line-height: 1.45;
}

.page-toc-level-3 > .page-toc-link {
  font-size: 1.25rem;
}

.page-toc-link:hover,
.page-toc-link:focus-visible,
.page-toc-item.active > .page-toc-link {
  color: var(--vaft-link-color);
  text-decoration: none;
}

.page-toc-link:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.page-toc-toggle,
.page-toc-close {
  display: none;
}

@media (min-width: 1241px) {
  .book.has-page-toc .book-body {
    right: var(--vaft-page-toc-width);
  }

  .book.has-page-toc .book-body .book-header {
    width: calc(100% - var(--vaft-page-toc-width));
  }

  .book.has-page-toc.with-summary .book-body .book-header {
    width: calc(100% - var(--vaft-sidebar-width) - var(--vaft-page-toc-width));
  }

  .book.has-page-toc .page-toc {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
    display: block;
    width: var(--vaft-page-toc-width);
    overflow-y: auto;
  }
}

@media (max-width: 1240px) {
  html,
  body,
  .book {
    max-width: 100%;
    overflow-x: hidden;
  }

  .book .book-body .page-wrapper .page-inner section.normal {
    font-size: 1.5rem;
  }

  .book .book-body .page-wrapper .page-inner section.normal table {
    display: block;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .book .book-body .page-wrapper .page-inner section.normal h1 {
    font-size: 2.8rem;
  }

  .book .book-body .page-wrapper .page-inner section.normal h2 {
    font-size: 2.2rem;
  }

  .book .book-body .page-wrapper .page-inner section.normal h3 {
    font-size: 1.8rem;
  }

  .book .book-body .page-wrapper .page-inner section.normal .code-block-wrapper pre code,
  .book .book-body .page-wrapper .page-inner section.normal pre code {
    font-size: 1.3rem;
  }

  .page-toc-toggle {
    display: inline-block;
  }

  .page-toc {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
    display: flex;
    width: min(86vw, 32rem);
    flex-direction: column;
    overflow: hidden;
    box-shadow: -8px 0 24px rgba(15, 23, 42, 0.18);
    transform: translateX(100%);
    transition: transform 250ms ease;
    pointer-events: none;
  }

  .book.with-page-toc .page-toc {
    transform: translateX(0);
    pointer-events: auto;
  }

  .page-toc-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.2rem;
    height: 3.2rem;
    padding: 0;
    color: var(--vaft-muted-color);
    background: transparent;
    border: 0;
    border-radius: 4px;
    cursor: pointer;
  }

  .page-toc-close:hover,
  .page-toc-close:focus-visible {
    color: var(--vaft-heading-color);
    background: var(--vaft-border);
    outline: none;
  }

  .page-toc-nav {
    overflow-y: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-toc {
    transition: none;
  }
}

.book-summary .summary .nav-section-label {
  padding: 1.8rem 1.5rem 0.65rem;
  color: #607086;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.075em;
  line-height: 1.3;
  text-transform: uppercase;
}

.book-summary .summary .nav-section-label + .chapter a {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
}

.entry-paths {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.6rem;
  margin: 2.4rem 0 3rem;
}

.entry-path-card {
  display: flex;
  min-height: 18rem;
  flex-direction: column;
  padding: 2.2rem;
  color: var(--vaft-body-color) !important;
  background: var(--vaft-panel-surface);
  border: 1px solid var(--vaft-border);
  border-radius: 10px;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.06);
}

.entry-path-card:hover,
.entry-path-card:focus-visible {
  border-color: var(--vaft-link-color);
  text-decoration: none;
  transform: translateY(-2px);
}

.entry-path-card strong {
  margin-bottom: 0.8rem;
  color: var(--vaft-heading-color);
  font-size: 2rem;
}

.entry-path-card span:last-child {
  margin-top: auto;
  padding-top: 1.2rem;
  color: var(--vaft-link-color);
  font-weight: 700;
}

.guide-overview {
  margin: 0 0 2.8rem;
  padding: 1.5rem 1.7rem;
  background: var(--vaft-panel-surface);
  border: 1px solid var(--vaft-border);
  border-left: 4px solid var(--vaft-link-color);
  border-radius: 8px;
}

.guide-overview h2 {
  margin: 0 0 1rem;
  font-size: 2rem;
}

.guide-overview dl {
  display: grid;
  grid-template-columns: 15rem 1fr;
  gap: 0.5rem 1.2rem;
  margin: 0;
}

.guide-overview dt {
  color: var(--vaft-muted-color);
  font-weight: 700;
}

.guide-overview dd {
  margin: 0;
}

.related-resources {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--vaft-border);
}

.related-resources-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
}

.related-resource-group {
  padding: 1.5rem;
  background: var(--vaft-panel-surface);
  border: 1px solid var(--vaft-border);
  border-radius: 8px;
}

.related-resource-group h3 {
  margin-top: 0;
}

.related-resource-group ul {
  margin-bottom: 0;
  padding-left: 1.8rem;
}

.resource-status {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.1rem 0.45rem;
  color: var(--vaft-muted-color);
  background: var(--vaft-surface);
  border: 1px solid var(--vaft-border);
  border-radius: 999px;
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: uppercase;
}

.notebook-output {
  margin: 2rem 0;
  padding: 1.6rem;
  background: var(--vaft-panel-surface);
  border: 1px solid var(--vaft-border);
  border-radius: 9px;
}

.notebook-output-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.6rem;
  align-items: start;
}

.notebook-output h3 {
  margin-top: 0;
}

.notebook-output-has-image {
  grid-column: 1 / -1;
}

.notebook-output figure {
  margin: 1rem 0 1.4rem;
}

.notebook-output figcaption,
.output-artifact-link {
  font-size: 1.3rem;
}

.notebook-output img {
  display: block;
  width: 100%;
  max-height: 52rem;
  margin: 1rem auto;
  object-fit: contain;
}

.output-provenance {
  margin-top: 1.2rem;
  border-top: 1px solid var(--vaft-border);
  padding-top: 1rem;
  font-size: 1.25rem;
}

.output-provenance summary {
  color: var(--vaft-link-color);
  cursor: pointer;
  font-weight: 700;
}

.output-provenance dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1rem;
  margin: 1rem 0 0;
}

.output-provenance dt {
  color: var(--vaft-muted-color);
  font-weight: 700;
}

.output-provenance dd {
  margin: 0;
  overflow-wrap: anywhere;
}

@media (max-width: 700px) {
  .entry-paths,
  .related-resources-grid,
  .notebook-output-grid {
    grid-template-columns: 1fr;
  }

  .entry-path-card {
    min-height: 14rem;
  }

  .output-provenance dl {
    grid-template-columns: 1fr;
  }

  .guide-overview dl {
    grid-template-columns: 1fr;
  }
}

/* Generated formula / process reference pages (_includes/reference/). */
.ref-intro {
  color: var(--vaft-muted-color);
}

.ref-table-wrap {
  margin: 0.8em 0 1.2em;
  overflow-x: auto;
}

.book .book-body .page-wrapper .page-inner section.normal .ref-table {
  display: table;
  width: 100%;
  margin: 0;
  font-size: 0.92em;
}

.book .book-body .page-wrapper .page-inner section.normal .ref-table td,
.book .book-body .page-wrapper .page-inner section.normal .ref-table th {
  padding: 0.45em 0.7em;
  vertical-align: top;
  text-align: left;
}

.ref-table td > p {
  margin: 0;
}

.ref-table td > p + p {
  margin-top: 0.4em;
}

.ref-table .ref-type,
.ref-table .ref-unit {
  white-space: nowrap;
  color: var(--vaft-muted-color);
}

.book .book-body .page-wrapper .page-inner section.normal .ref-table tr.ref-group th {
  background: var(--vaft-panel-surface);
  color: var(--vaft-muted-color);
  font-size: 0.8em;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Long names (alpha_heating_power_from_n_D_n_T_T_keV_V) break anywhere
   rather than starving the summary column. */
.ref-index-table td:first-child {
  width: 19em;
  min-width: 12em;
}

.ref-index-table td:first-child code {
  overflow-wrap: anywhere;
}

.ref-index-table td:last-child {
  min-width: 14em;
}

.ref-filter {
  width: 100%;
  box-sizing: border-box;
  padding: 0.5em 0.75em;
  border: 1px solid var(--vaft-border);
  border-radius: 6px;
  background: var(--vaft-surface);
  color: var(--vaft-body-color);
  font: inherit;
}

.ref-filter-empty {
  color: var(--vaft-muted-color);
  font-style: italic;
}

.ref-entry {
  margin: 1.6em 0;
  padding: 0.2em 1.2em 0.6em;
  border: 1px solid var(--vaft-border);
  border-radius: 8px;
  background: var(--vaft-surface);
  scroll-margin-top: calc(var(--vaft-header-height) + 12px);
}

.ref-entry[hidden],
.ref-index [hidden] {
  display: none;
}

.ref-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4em 0.8em;
  margin: 0.9em 0 0.4em;
}

.book .book-body .page-wrapper .page-inner section.normal h3.ref-name,
.book .book-body .page-wrapper .page-inner section.normal h4.ref-name {
  margin: 0;
  font-size: 1.15em;
}

.book .book-body .page-wrapper .page-inner section.normal h3.ref-name a,
.book .book-body .page-wrapper .page-inner section.normal h4.ref-name a {
  color: var(--vaft-heading-color);
  text-decoration: none;
}

.ref-flags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35em;
}

.ref-flag {
  display: inline-block;
  padding: 0.05em 0.55em;
  border: 1px solid var(--vaft-border);
  border-radius: 999px;
  background: var(--vaft-panel-surface);
  color: var(--vaft-muted-color);
  font-size: 0.75em;
  font-weight: 600;
  line-height: 1.6;
  white-space: nowrap;
}

.ref-flag-convention {
  border-color: #c98a1b;
  color: #9a6200;
}

.ref-flag-empirical {
  border-color: #7c5cbf;
  color: #5f3fa3;
}

.ref-flag-vest {
  border-color: #2f7fb8;
  color: #1f5f8f;
}

.ref-flag-deprecated {
  border-color: #c0392b;
  color: #a12b20;
}

.book.color-theme-2 .ref-flag-convention { color: #f0b85a; }
.book.color-theme-2 .ref-flag-empirical { color: #b9a0f0; }
.book.color-theme-2 .ref-flag-vest { color: #86c3f0; }
.book.color-theme-2 .ref-flag-deprecated { color: #f08a7e; }

.ref-source {
  margin-left: auto;
  font-size: 0.85em;
}

/* Light rather than the dark code-block style: one per entry, and it reads as
   a heading line, not as a listing.  The copy-button plugin wraps every <pre>
   in .code-block-wrapper, so the frame goes on that wrapper; the right
   padding keeps the wrapped text clear of the button. */
.book .book-body .page-wrapper .page-inner section.normal .code-block-wrapper:has(> pre.ref-signature) {
  margin: 0.2em 0 0.9em;
  border: 1px solid var(--vaft-border);
  border-radius: 6px;
  background: var(--vaft-inline-code-bg);
}

.book .book-body .page-wrapper .page-inner section.normal pre.ref-signature {
  margin: 0.2em 0 0.9em;
  padding: 0.6em 5.5em 0.6em 0.8em;
  border-radius: 6px;
  background: var(--vaft-inline-code-bg);
  color: var(--vaft-inline-code-fg);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.book .book-body .page-wrapper .page-inner section.normal .code-block-wrapper > pre.ref-signature {
  margin: 0;
}

.book .book-body .page-wrapper .page-inner section.normal pre.ref-signature code {
  color: inherit;
  white-space: pre-wrap;
  font-size: 1.25rem;
}

.ref-note {
  color: var(--vaft-muted-color);
  font-size: 0.9em;
}

.ref-callout {
  margin: 0.9em 0;
  padding: 0.5em 0.9em;
  border-left: 3px solid var(--vaft-border);
  border-radius: 0 6px 6px 0;
  background: var(--vaft-panel-surface);
}

.ref-callout-convention {
  border-left-color: #c98a1b;
}

.ref-callout-raises {
  border-left-color: #c0392b;
}

/* Plot reference (#1505): the scientific reading of a plot, from its docstring. */
.ref-callout-interpretation {
  border-left-color: #2e7d9a;
}

.ref-callout-options {
  border-left-color: #6b7f99;
}

.ref-callout-limitations {
  border-left-color: #c98a1b;
}

.ref-callout > :last-child {
  margin-bottom: 0.3em;
}

.book .book-body .page-wrapper .page-inner section.normal .ref-label {
  margin: 0.3em 0 0.3em;
  color: var(--vaft-muted-color);
  font-size: 0.78em;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ref-raises {
  margin: 0;
  padding-left: 1.1em;
}

.ref-more {
  margin: 0.9em 0 0.3em;
  border-top: 1px solid var(--vaft-border);
  padding-top: 0.5em;
}

.ref-more > summary {
  cursor: pointer;
  color: var(--vaft-link-color);
  font-size: 0.9em;
}

.book .book-body .page-wrapper .page-inner section.normal .ref-more h4.ref-label,
.book .book-body .page-wrapper .page-inner section.normal .ref-more h5.ref-label {
  margin-top: 1em;
}

/* Inline source (#1069): collapsed under the signature, the same lines the
   [source] link points at.  Capped in height so a long body scrolls in place. */
.ref-code {
  margin: 0 0 0.9em;
}

.ref-code > summary {
  cursor: pointer;
  color: var(--vaft-link-color);
  font-size: 0.9em;
}

.ref-code > summary .ref-note {
  margin-left: 0.4em;
}

.book .book-body .page-wrapper .page-inner section.normal .ref-code pre {
  max-height: 32em;
  overflow: auto;
}

.api-members .ref-source,
.api-link .ref-source {
  margin-left: 0.4em;
}

/* Diagram gallery: the committed SVG is the entry point of each card. */
.ref-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15em, 1fr));
  gap: 0.8em;
  margin: 0.8em 0;
}

.ref-figure {
  margin: 0;
  padding: 0.5em;
  border: 1px solid var(--vaft-border);
  border-radius: 6px;
  background: #fff;
}

.ref-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 22em;
  object-fit: contain;
}

.ref-plot-gallery {
  grid-template-columns: repeat(auto-fill, minmax(12em, 1fr));
}

.ref-figure-empty {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--vaft-surface);
}

.book .book-body .page-wrapper .page-inner section.normal .ref-figure-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 7em;
  color: #777;
  font-size: 0.85em;
  text-decoration: none;
}

.book .book-body .page-wrapper .page-inner section.normal .ref-figure figcaption {
  margin-top: 0.4em;
  font-size: 0.8em;
  color: #333;
  overflow-wrap: anywhere;
}

@media (max-width: 700px) {
  .ref-entry {
    padding: 0.1em 0.8em 0.5em;
  }

  .ref-source {
    margin-left: 0;
  }

  /* The table scrolls inside its wrapper; let the short columns wrap and
     keep the description wide enough to read once it is scrolled to. */
  .ref-table .ref-type {
    white-space: normal;
  }

  .ref-table:not(.ref-index-table) td:last-child {
    min-width: 13em;
  }
}

/* Landing page hero, entry points and pipeline strip (#1763). */
@font-face {
  font-family: "IBM Plex Sans Condensed VAFT";
  src: url("../brand/fonts/IBMPlexSansCondensed-SemiBold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

.vaft-hero {
  margin: 0.4rem 0 2.6rem;
  padding: 2.8rem 2.2rem 2.4rem;
  text-align: center;
  background: var(--vaft-panel-surface);
  border: 1px solid var(--vaft-border);
  border-radius: 12px;
}

.vaft-hero .vaft-hero-logo {
  display: block;
  width: min(100%, 46rem);
  height: auto;
  margin: 0 auto 1.6rem;
}

.vaft-hero .vaft-hero-logo-dark,
.book.color-theme-2 .vaft-hero .vaft-hero-logo-light {
  display: none;
}

.book.color-theme-2 .vaft-hero .vaft-hero-logo-dark {
  display: block;
}

.book .book-body .page-wrapper .page-inner section.normal .vaft-hero .vaft-hero-tagline {
  max-width: 68rem;
  margin: 0 auto 0.7rem;
  color: var(--vaft-heading-color);
  font-family: "IBM Plex Sans Condensed VAFT", sans-serif;
  font-size: clamp(2.2rem, 3vw, 3rem);
  font-weight: 600;
  line-height: 1.25;
}

.book .book-body .page-wrapper .page-inner section.normal .vaft-hero .vaft-hero-summary {
  max-width: 58rem;
  margin: 0 auto 1.5rem;
  color: var(--vaft-body-color);
  font-size: 1.6rem;
  line-height: 1.5;
}

.vaft-hero .vaft-hero-commands code {
  margin: 0 0.4rem;
  padding: 0.35rem 0.9rem;
  font-size: 1.4rem;
  border: 1px solid var(--vaft-border);
  border-radius: 6px;
}

.vaft-hero .vaft-hero-commands code::before,
.vaft-hero .vaft-hero-commands code::after {
  content: none;
}

.vaft-start {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.2rem;
  margin: 0 0 2.8rem;
}

.vaft-start-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.6rem;
  color: var(--vaft-body-color) !important;
  background: var(--vaft-panel-surface);
  border: 1px solid var(--vaft-border);
  border-radius: 10px;
}

.vaft-start-card:hover,
.vaft-start-card:focus-visible {
  border-color: var(--vaft-link-color);
  text-decoration: none;
}

.vaft-start-card strong {
  margin-bottom: 0.5rem;
  color: var(--vaft-heading-color);
  font-size: 1.7rem;
}

.vaft-start-card span {
  font-size: 1.3rem;
  line-height: 1.5;
}

.vaft-pipeline {
  display: flex;
  align-items: stretch;
  gap: 0.8rem;
  margin: 1.2rem 0 1.4rem;
  padding: 0;
  list-style: none;
}

.vaft-pipeline li {
  position: relative;
  flex: 1 1 0;
  margin: 0;
  padding: 1.1rem 1.2rem;
  background: var(--vaft-panel-surface);
  border: 1px solid var(--vaft-border);
  border-radius: 10px;
  font-size: 1.3rem;
  line-height: 1.45;
}

.vaft-pipeline li strong {
  display: block;
  color: var(--vaft-heading-color);
  font-size: 1.6rem;
}

.vaft-pipeline li + li::before {
  position: absolute;
  top: 50%;
  left: -0.85rem;
  color: var(--vaft-link-color);
  content: "\2192";
  font-weight: 700;
  transform: translate(-50%, -50%);
}

.book-header .book-logo {
  position: absolute;
  top: 11px;
  left: 64px;
  line-height: 0;
}

.book-header .book-logo img {
  width: 28px;
  height: 28px;
}

@media (max-width: 1000px) {
  .vaft-start {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .vaft-pipeline {
    flex-direction: column;
  }

  .vaft-pipeline li + li::before {
    top: -0.85rem;
    left: 50%;
    content: "\2193";
  }
}