/* Shared by every portfolio case study. */
.project-nav {
  position: sticky;
  top: 0;
  z-index: 2000;
  color: #2c3757;
  background: rgba(247, 250, 255, .88);
  border-bottom: 1px solid rgba(72, 88, 132, .16);
  box-shadow: 0 6px 24px rgba(37, 48, 82, .07);
  backdrop-filter: blur(20px) saturate(145%);
  -webkit-backdrop-filter: blur(20px) saturate(145%);
}

.project-nav [hidden] { display: none !important; }
.project-nav-inner {
  display: flex;
  align-items: center;
  gap: clamp(.5rem, .8vw, 1rem);
  max-width: 1600px;
  min-height: 72px;
  margin: 0 auto;
  padding: .65rem clamp(1rem, 1.5vw, 1.5rem);
}
.project-nav a, .project-nav summary, .project-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  min-height: 44px;
  padding: .55rem .5rem;
  border-radius: 9px;
  color: inherit;
  font: inherit;
  font-size: .8rem;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background .18s ease, color .18s ease;
}
.project-nav a:hover, .project-nav summary:hover, .project-nav-toggle:hover {
  color: #263c89;
  background: rgba(83, 109, 254, .08);
}
.project-nav a:focus-visible, .project-nav summary:focus-visible, .project-nav-toggle:focus-visible {
  outline: 2px solid #426aa7;
  outline-offset: 3px;
}
.project-nav a[aria-current="page"], .project-nav-more.has-current > summary {
  color: #334da4;
  background: rgba(83, 109, 254, .1);
}
.project-nav .project-nav-home { padding-inline: .5rem; font-size: .95rem; font-weight: 700; }
.project-nav-icon {
  display: inline-block;
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.project-nav-icon--linkedin { fill: currentColor; stroke: none; width: 15px; height: 15px; }
.project-nav-item-icon { width: 16px; height: 16px; }
.project-nav-panel { display: flex; align-items: center; flex: 1; min-width: 0; gap: .5rem; }
.project-nav-projects, .project-nav-actions { display: flex; align-items: center; gap: .15rem; }
.project-nav-projects { margin: 0; padding: 0; list-style: none; }
.project-nav-projects > li { margin: 0; padding: 0; }
.project-nav-projects > li > a, .project-nav summary { padding-inline: .4rem; }
.project-nav-projects a > span { margin: 0; color: inherit; font: inherit; }
.project-nav-actions {
  margin-left: auto;
  padding-left: .7rem;
  border-left: 1px solid rgba(72, 88, 132, .16);
}
.project-nav .project-nav-contact { margin-left: .4rem; padding-inline: .85rem; border: 1px solid rgba(72, 88, 132, .22); }
.project-nav-more { position: relative; padding-block: 12px; margin-block: -12px; }
.project-nav summary { list-style: none; }
.project-nav summary::-webkit-details-marker { display: none; }
.project-nav-chevron { width: 12px; height: 12px; transition: transform .18s ease; }
.project-nav-more[open] .project-nav-chevron { transform: rotate(180deg); }
.project-nav-submenu {
  position: absolute;
  top: 100%;
  right: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .25rem;
  width: 460px;
  padding: .7rem;
  border: 1px solid rgba(72, 88, 132, .16);
  border-radius: 14px;
  background: #f7faff;
  box-shadow: 0 18px 40px rgba(37, 48, 82, .14);
}
.project-nav-submenu a { justify-content: flex-start; white-space: normal; }
.project-nav-toggle { display: none; min-width: 44px; border: 1px solid rgba(72, 88, 132, .2); background: transparent; }
.project-nav-toggle .project-nav-icon { width: 20px; height: 20px; }
.project-nav-toggle[aria-expanded="true"] .project-nav-menu-line { display: none; }
.project-nav-toggle[aria-expanded="true"] .project-nav-menu-top { d: path("M5 5 19 19"); }
.project-nav-toggle[aria-expanded="true"] .project-nav-menu-bottom { d: path("M5 19 19 5"); }

@media (max-width: 1279px) {
  .project-nav-inner { flex-wrap: wrap; justify-content: space-between; gap: 0; min-height: 64px; }
  .project-nav[data-nav-ready] .project-nav-toggle { display: inline-flex; }
  .project-nav-panel {
    display: grid;
    flex: 0 0 100%;
    gap: .8rem;
    max-height: calc(100vh - 78px);
    max-height: calc(100dvh - 78px - env(safe-area-inset-bottom));
    padding: .65rem 0;
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .project-nav-projects { display: grid; gap: .2rem; }
  .project-nav-projects > li > a, .project-nav summary { display: flex; justify-content: flex-start; width: 100%; }
  .project-nav-more { padding: 0; margin: 0; }
  .project-nav summary { justify-content: space-between; }
  .project-nav-submenu {
    position: static;
    width: 100%;
    padding: .2rem 0 .2rem .6rem;
    border: 0;
    border-left: 2px solid rgba(72, 88, 132, .16);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }
  .project-nav-actions { display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; padding: .8rem 0 0; border: 0; border-top: 1px solid rgba(72, 88, 132, .16); }
  .project-nav a, .project-nav summary { font-size: .9rem; white-space: normal; overflow-wrap: anywhere; }
  .project-nav a > span, .project-nav-projects > li { min-width: 0; }
  .project-nav .project-nav-contact { margin-left: 0; }
}
@media (max-width: 599px) {
  .project-nav-submenu { grid-template-columns: 1fr; }
  .project-nav-actions { display: grid; }
  .project-nav-actions a { justify-content: flex-start; }
  .project-nav .project-nav-contact { justify-content: center; margin-top: .35rem; }
}
@media (prefers-reduced-motion: reduce) {
  .project-nav *, .project-nav *::before, .project-nav *::after { transition: none; }
}