.lab-context-nav {
  top: var(--lab-shell-header-height, var(--atlas-header-height, var(--global-nav-h, var(--nav-h, 56px))));
  min-height: 0;
  overflow-x: hidden;
  overscroll-behavior-inline: contain;
  scrollbar-width: none;
  scroll-snap-type: none;
  border-bottom: 1px solid var(--border);
  background: rgba(17, 17, 24, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.lab-context-nav::-webkit-scrollbar,
.lab-context-nav-inner::-webkit-scrollbar {
  display: none;
}

.lab-context-nav-inner {
  width: min(1180px, calc(100% - 48px));
  min-width: 0;
  min-height: 0;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  overflow-x: visible;
  scrollbar-width: none;
  gap: 0;
}

.lab-context-group {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.42rem 0.5rem 0.5rem;
  border-inline-end: 1px solid var(--border);
}

.lab-context-group:last-child {
  border-inline-end: 0;
}

.lab-context-group-label {
  display: block;
  padding: 0 0.4rem 0.18rem;
  color: var(--text-faint);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.16em;
  line-height: 1.2;
  text-transform: uppercase;
}

.lab-context-group-links {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 0.12rem 0.18rem;
}

.lab-context-nav .lab-context-group a {
  min-width: 44px;
  min-height: 44px;
  padding: 0.42rem 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--text-dim);
  font-size: 9.5px;
  letter-spacing: 0.055em;
  line-height: 1.25;
  text-align: center;
  text-transform: uppercase;
  white-space: normal;
}

.lab-context-nav .lab-context-group a:hover {
  border-color: var(--border-hi);
  color: var(--text);
}

.lab-context-nav .lab-context-group a:focus-visible {
  border-color: var(--accent);
  color: var(--text);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.lab-context-nav .lab-context-group a[aria-current="page"] {
  border-color: rgba(245, 166, 35, 0.45);
  background: rgba(245, 166, 35, 0.1);
  color: var(--text);
}

.lab-context-nav.lab-context-nav--compact {
  overflow: visible;
  -webkit-mask-image: none;
  mask-image: none;
}

body[data-lab-shell] > .lab-context-nav.lab-context-nav--compact {
  z-index: 120 !important;
}

.lab-context-compact {
  position: relative;
  width: min(1280px, calc(100% - 48px));
  min-width: 0;
  min-height: 54px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.lab-context-compact__crumbs {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  overflow: hidden;
  color: #aaa9b5;
  font-family: var(--mono, "IBM Plex Mono", monospace);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.09em;
  line-height: 1.2;
  text-transform: uppercase;
  white-space: nowrap;
}

.lab-context-compact__crumbs a {
  min-width: 44px;
  min-height: 44px;
  padding-inline: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #c7c6bd;
  text-decoration: none;
}

.lab-context-compact__crumbs a:hover,
.lab-context-compact__crumbs a:focus-visible {
  color: #ffffff;
}

.lab-context-compact__crumbs a:focus-visible,
.lab-context-tools summary:focus-visible,
.lab-context-tools__links a:focus-visible {
  outline: 2px solid #f5a623;
  outline-offset: 2px;
}

.lab-context-compact__separator {
  flex: none;
  color: #aaa9b5;
}

.lab-context-compact__current {
  overflow: hidden;
  color: #ffbe55;
  text-overflow: ellipsis;
}

.lab-context-tools {
  position: relative;
  flex: none;
}

.lab-context-tools summary {
  min-width: 44px;
  min-height: 44px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #454651;
  border-radius: 4px;
  background: rgba(10, 10, 15, 0.88);
  color: #c7c6bd;
  cursor: pointer;
  font-family: var(--mono, "IBM Plex Mono", monospace);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  list-style: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.lab-context-tools summary::-webkit-details-marker {
  display: none;
}

.lab-context-tools summary::after {
  margin-left: 9px;
  content: "+";
  color: #f5a623;
}

.lab-context-tools[open] summary {
  border-color: rgba(245, 166, 35, 0.72);
  color: #ffffff;
}

.lab-context-tools[open] summary::after {
  content: "−";
}

.lab-context-tools__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 180;
  width: min(760px, calc(100vw - 32px));
  max-height: min(72svh, 640px);
  padding: 10px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid #454651;
  border-radius: 6px;
  background: rgba(10, 10, 15, 0.985);
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.lab-context-tools__group {
  min-width: 0;
  padding: 8px;
  border: 1px solid #292a34;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.012);
}

.lab-context-tools__group-label {
  display: block;
  margin: 0 2px 6px;
  color: #aaa9b5;
  font-family: var(--mono, "IBM Plex Mono", monospace);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.16em;
  line-height: 1.2;
  text-transform: uppercase;
}

.lab-context-tools__links {
  display: grid;
  gap: 2px;
}

.lab-context-tools__links a {
  min-width: 44px;
  min-height: 44px;
  padding: 9px 10px;
  display: flex;
  align-items: center;
  border: 1px solid transparent;
  border-radius: 4px;
  color: #c7c6bd;
  font-family: var(--mono, "IBM Plex Mono", monospace);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.055em;
  line-height: 1.3;
  text-decoration: none;
  text-transform: uppercase;
}

.lab-context-tools__links a:hover,
.lab-context-tools__links a:focus-visible,
.lab-context-tools__links a[aria-current="page"] {
  border-color: rgba(245, 166, 35, 0.58);
  background: rgba(245, 166, 35, 0.14);
  color: #ffffff;
}

.lab-context-tools__links a[aria-current="page"]::before {
  margin-right: 8px;
  content: "◆";
  color: #f5a623;
  font-size: 7px;
}

@media (min-width: 1100px) {
  .lab-context-nav {
    -webkit-mask-image: none;
    mask-image: none;
  }
}

@media (max-width: 1099px) {
  .lab-context-nav:not(.lab-context-nav--compact) {
    overflow-x: auto;
    -webkit-mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 30px), transparent);
    mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 30px), transparent);
  }

  .lab-context-nav-inner {
    width: max-content;
    min-width: 100%;
    grid-template-columns: repeat(4, minmax(250px, 1fr));
  }

  .lab-context-group {
    min-width: 250px;
  }
}

@media (max-width: 820px) {
  .lab-context-tools__menu {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .lab-context-nav-inner {
    grid-template-columns: repeat(4, minmax(232px, 1fr));
  }

  .lab-context-group {
    min-width: 232px;
    padding-inline: 0.4rem;
  }

  .lab-context-nav .lab-context-group a {
    padding-inline: 0.44rem;
    font-size: 9px;
  }
}

@media (max-width: 560px) {
  .lab-context-compact {
    width: calc(100% - 24px);
    gap: 8px;
  }

  .lab-context-compact__crumbs {
    gap: 7px;
    font-size: 9px;
  }

  .lab-context-tools summary {
    padding-inline: 11px;
    font-size: 9px;
  }

  .lab-context-tools__menu {
    width: calc(100vw - 24px);
    max-height: calc(100svh - var(--lab-shell-stack-height, 110px) - 16px);
    grid-template-columns: 1fr;
  }
}

@media (max-width: 360px) {
  .lab-context-compact__separator,
  .lab-context-compact__current {
    max-width: min(34vw, 118px);
  }

  .lab-context-tools summary {
    max-width: 132px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lab-context-nav,
  .lab-context-tools__menu {
    scroll-behavior: auto;
  }
}