.graphic-page .primary-nav .submenu {
  top: calc(100% - .15rem);
  display: block;
  min-width: 18rem;
  padding: 0;
  border: 1px solid #4A6359;
  border-top: 2px solid var(--graphic-gold);
  background: var(--ink);
  box-shadow: none;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-.25rem);
  transition: opacity 120ms ease-out, transform 120ms ease-out, visibility 120ms;
}

.graphic-page .primary-nav li.is-open .submenu,
.graphic-page .primary-nav li:focus-within .submenu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.graphic-page .submenu-section {
  padding: .5rem;
}

.graphic-page .submenu-section-title {
  margin: 0;
  padding: .55rem .75rem .35rem;
  color: var(--graphic-gold);
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .08em;
  line-height: 1.5;
}

.graphic-page .primary-nav .submenu a {
  display: flex;
  min-height: 3rem;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: .15rem;
  padding: .65rem .75rem;
  background: transparent;
  color: var(--graphic-white);
  font-size: .875rem;
  line-height: 1.5;
  transition: background-color 120ms ease-out, color 120ms ease-out;
}

.graphic-page .primary-nav .submenu a::after {
  content: none;
}

.graphic-page .primary-nav .submenu a:hover,
.graphic-page .primary-nav .submenu a:focus-visible {
  background: #24483B;
  color: var(--graphic-white);
}

.graphic-page .submenu-case-role {
  color: var(--graphic-gold);
  font-size: .6875rem;
  font-weight: 400;
}

.graphic-page .primary-nav .submenu-projects {
  right: 0;
  left: auto;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  width: 31rem;
  max-width: calc(100vw - 2rem);
}

.graphic-page .submenu-projects.is-open,
.graphic-page .primary-nav li.is-open .submenu-projects,
.graphic-page .primary-nav li:focus-within .submenu-projects {
  display: grid;
}

.graphic-page .submenu-projects .submenu-section + .submenu-section {
  border-left: 1px solid #4A6359;
}

@media (hover: hover) {
  .graphic-page .primary-nav li:hover .submenu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .graphic-page .primary-nav li:hover .submenu-projects {
    display: grid;
  }
}

.back-to-top {
  right: max(.75rem, calc((100vw - 80rem) / 2 - 7rem));
  bottom: max(1rem, env(safe-area-inset-bottom, 0px));
  width: auto;
  min-width: 2.75rem;
  height: auto;
  min-height: 2.75rem;
  padding: .5rem .75rem;
  border: 0;
  border-bottom: 1px solid var(--graphic-gold-strong);
  background: rgba(245, 242, 235, .94);
  color: var(--ink);
  box-shadow: none;
  font-size: .75rem;
  font-weight: 700;
  line-height: 1.5;
  white-space: nowrap;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background: var(--graphic-white);
  color: var(--graphic-green-soft);
}

.upgrade-case .detail-hero {
  position: relative;
  isolation: isolate;
  background: transparent;
}

.upgrade-case .detail-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 calc(50% - 50vw);
  background: var(--ink);
}

.upgrade-case .breadcrumb {
  position: relative;
  isolation: isolate;
  background: transparent;
}

.upgrade-case .breadcrumb::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 calc(50% - 50vw);
  background: var(--ink);
}

.upgrade-case .breadcrumb a {
  color: #DCE7DE;
}

.upgrade-case .breadcrumb > span:last-child {
  color: var(--graphic-gold);
}

.graphic-page .capability-domains {
  display: grid;
  gap: 0;
}

.graphic-page .capability-domain {
  padding: 2.5rem 0;
  border-top: 1px solid var(--graphic-line);
}

.graphic-page .capability-domain:first-child {
  padding-top: 0;
  border-top: 0;
}

.graphic-page .domain-heading {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: 3rem;
  align-items: start;
  margin-bottom: 2rem;
}

.graphic-page .domain-heading h3 {
  max-width: 30rem;
  margin: 0;
  font-size: clamp(1.625rem, 2.5vw, 2.125rem);
  line-height: 1.35;
}

.graphic-page .domain-heading p {
  max-width: 38rem;
  margin: 0;
  color: var(--graphic-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.graphic-page .capability-subgroups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem 3rem;
}

.graphic-page .capability-subgroup h4 {
  margin: 0 0 .75rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--graphic-green-soft);
  color: var(--graphic-green);
  font-size: 1rem;
  line-height: 1.5;
}

.graphic-page .capability-domain .capability-list {
  gap: 0;
}

.graphic-page .capability-domain .capability-list li {
  display: block;
  padding: .75rem 0;
  border-bottom: 1px solid #DDE1D9;
}

.graphic-page .capability-domain .capability-list strong {
  display: block;
  font-size: .9375rem;
  line-height: 1.6;
}

.graphic-page .capability-domain .capability-list span {
  display: block;
  margin-top: .2rem;
  font-size: .8125rem;
  line-height: 1.65;
}

.graphic-page .capability-subgroup:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.graphic-page .capability-subgroup:last-child:nth-child(odd) .capability-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 3rem;
}

.graphic-page .capability-groups .capability-group {
  border-top-width: 1px;
  background: transparent;
}

.graphic-page .capability-groups .capability-group h3 {
  justify-content: flex-start;
}

@media (max-width: 1180px) {
  .upgrade-case .strategy-path,
  .upgrade-case .interview-workbench,
  .upgrade-case .model-workbench {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }
}

@media (max-width: 1500px) {
  .back-to-top {
    right: max(.75rem, calc((100vw - 80rem) / 2 - 3.5rem));
    width: 2.75rem;
    padding: 0;
    border-bottom: 0;
    font-size: 0;
  }

  .back-to-top::before {
    content: "↑";
    font-size: 1rem;
  }
}

@media (max-width: 900px) {
  .graphic-page .primary-nav .submenu,
  .graphic-page .primary-nav .submenu-projects {
    position: static;
    display: none;
    width: 100%;
    max-width: none;
    border-right: 0;
    border-left: 0;
    transform: none;
  }

  .graphic-page .primary-nav li.is-open .submenu,
  .graphic-page .primary-nav li.is-open .submenu-projects {
    display: block;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .graphic-page .submenu-projects .submenu-section + .submenu-section {
    border-top: 1px solid #4A6359;
    border-left: 0;
  }

  .graphic-page .primary-nav .submenu a {
    align-items: center;
    text-align: center;
  }

  .upgrade-case .strategy-path,
  .upgrade-case .interview-workbench,
  .upgrade-case .model-workbench {
    grid-template-columns: minmax(0, 1fr) !important;
  }

  .graphic-page .domain-heading,
  .graphic-page .capability-subgroups,
  .graphic-page .capability-subgroup:last-child:nth-child(odd) .capability-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
  }

  .graphic-page .capability-domain {
    padding: 2rem 0;
  }

  .graphic-page .domain-heading {
    margin-bottom: 1.5rem;
  }

  .graphic-page .capability-subgroups {
    gap: 1.5rem;
  }

  .graphic-page .capability-subgroup:last-child:nth-child(odd) {
    grid-column: auto;
  }

  .back-to-top {
    right: .75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .graphic-page .primary-nav .submenu,
  .graphic-page .primary-nav .submenu a {
    transition: none;
  }
}

.site-footer .icp {
  margin: .75rem 0 0;
  font-size: .75rem;
}

.site-footer .icp a {
  color: var(--graphic-muted);
  text-decoration: none;
}

.site-footer .icp a:hover,
.site-footer .icp a:focus-visible {
  color: var(--graphic-green-soft);
  text-decoration: underline;
  text-underline-offset: .2rem;
}