/* Kubernetes Lab — single-grid layout, 10 Sep 2026 */
body[data-page="lab"] .lab-page{
  padding:72px 0 96px;
}
body[data-page="lab"] .lab-overview{
  margin-bottom:36px;
}
body[data-page="lab"] .lab-overview h2{
  margin:8px 0 12px;
  font-size:clamp(34px,4vw,52px);
  line-height:1.04;
}
body[data-page="lab"] .lab-overview p{
  max-width:780px;
  margin:0;
  color:var(--muted);
}
body[data-page="lab"] .lab-repository-link{
  display:inline-flex;
  margin-top:18px;
}

/* Keep the controls close to the cards. The All view has no group headings. */
body[data-page="lab"] .lab-page .filter-bar{
  margin-bottom:30px !important;
}
body[data-page="lab"] .lab-active-group-heading{
  margin:0 0 16px;
  color:var(--text);
  font-size:13px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:.12em;
  text-transform:uppercase;
}
body[data-page="lab"] .lab-active-group-heading[hidden]{
  display:none !important;
}
body[data-page="lab"] .lab-curriculum-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  align-items:stretch;
}
body[data-page="lab"][data-lab-filter="networking"] .lab-curriculum-grid,
body[data-page="lab"][data-lab-filter="security"] .lab-curriculum-grid{
  grid-template-columns:repeat(2,minmax(0,1fr));
}
body[data-page="lab"] .lab-topic-card{
  position:relative;
  min-height:275px;
  padding:28px 30px 26px;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}
body[data-page="lab"] .lab-topic-card.filtered-out,
body[data-page="lab"] .lab-topic-card[hidden]{
  display:none !important;
}
body[data-page="lab"] .lab-topic-no{
  position:absolute;
  top:25px;
  right:26px;
  color:color-mix(in srgb,var(--text) 13%,transparent);
  font:900 30px/1 ui-monospace,SFMono-Regular,Menlo,monospace;
}
body[data-page="lab"] .lab-topic-card>.kicker{
  display:block;
  margin:0 44px 12px 0;
}
body[data-page="lab"] .lab-topic-card h3{
  margin:0 44px 12px 0;
  font-size:22px;
  line-height:1.16;
}
body[data-page="lab"] .lab-topic-card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.65;
  flex:1;
}
body[data-page="lab"] .lab-topic-card .tags{
  margin-top:auto;
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:7px;
}
body[data-page="lab"] .lab-topic-card .tag{
  display:inline-flex;
  align-items:center;
  min-height:32px;
  padding:7px 11px;
  border:1px solid var(--line);
  border-radius:999px;
  background:color-mix(in srgb,var(--panel) 35%,transparent);
  color:var(--muted);
  font-size:10px;
  line-height:1.2;
  cursor:default;
  transition:transform 180ms ease,border-color 180ms ease,background-color 180ms ease,box-shadow 180ms ease,color 180ms ease;
}
body[data-page="lab"] .lab-topic-card .tag:hover,
body[data-page="lab"] .lab-topic-card .tag:focus-visible{
  transform:translateY(-1px);
  color:var(--text);
  border-color:var(--green);
  background:color-mix(in srgb,var(--green) 18%,var(--panel));
  box-shadow:0 0 0 1px color-mix(in srgb,var(--green) 24%,transparent),0 0 18px color-mix(in srgb,var(--green) 34%,transparent);
  outline:none;
}

@media(max-width:1000px){
  body[data-page="lab"] .lab-curriculum-grid,
  body[data-page="lab"][data-lab-filter="networking"] .lab-curriculum-grid,
  body[data-page="lab"][data-lab-filter="security"] .lab-curriculum-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}
@media(max-width:650px){
  body[data-page="lab"] .lab-page{
    padding:54px 0 72px;
  }
  body[data-page="lab"] .lab-page .filter-bar{
    margin-bottom:24px !important;
  }
  body[data-page="lab"] .lab-curriculum-grid,
  body[data-page="lab"][data-lab-filter="networking"] .lab-curriculum-grid,
  body[data-page="lab"][data-lab-filter="security"] .lab-curriculum-grid{
    grid-template-columns:1fr;
    gap:14px;
  }
  body[data-page="lab"] .lab-active-group-heading{
    margin-bottom:13px;
  }
  body[data-page="lab"] .lab-topic-card{
    min-height:0;
    padding:24px 22px;
  }
  body[data-page="lab"] .lab-topic-no{
    top:22px;
    right:20px;
  }
}
@media(prefers-reduced-motion:reduce){
  body[data-page="lab"] .lab-topic-card .tag{transition:none}
}