/* Power Infrastructure embedded module (scoped) */
.pi-module{
  border: 1px solid var(--color-border);
  background: #fff;
  padding: 18px;
  margin: 18px 0 28px;
}

.pi-tabs{
  display: flex;
  gap: 10px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 10px;
  margin-bottom: 14px;
}

.pi-tab{
  font: 500 12px var(--font-sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--color-border);
  background: transparent;
  padding: 8px 10px;
  cursor: pointer;
}

.pi-tab.is-active{
  background: #000;
  color: #fff;
  border-color: #000;
}

.pi-pane{display:none;}
.pi-pane.is-active{display:block;}

.pi-pane__header{margin: 8px 0 14px;}
.pi-pane__title{font-family: var(--font-serif); font-weight: 500; font-size: 22px; margin: 0 0 6px;}
.pi-pane__sub{margin:0; color: var(--color-text-secondary); font-size: 14px; max-width: 72ch;}

.pi-overhang, .pi-nuclear{border: 1px solid var(--color-border); padding: 14px;}

.pi-overhang__stage{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: end;
}

.pi-tank__cap{
  height: 8px;
  border: 1px solid var(--color-border);
  border-bottom: none;
  background: rgba(0,0,0,0.04);
}

.pi-tank__body{
  border: 1px solid var(--color-border);
  background: rgba(0,0,0,0.02);
  height: 240px;
  padding: 10px;
  display: flex;
  align-items: flex-end;
}

.pi-icons{
  width: 100%;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  align-content: end;
}

.pi-icon{
  height: 20px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.pi-icon.is-visible{opacity: 1; transform: translateY(0);}

.pi-icon svg{display:block; width: 100%; height: 20px;}

.pi-tank__label{
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.pi-tank__meta{margin-top: 4px; font-size: 12px;}

.pi-legend{display:flex; gap: 10px; align-items:center; margin-top: 10px; font-size: 12px; color: var(--color-text-secondary);} 
.pi-legend__swatch{display:inline-flex; width: 18px; height: 18px; align-items:center; justify-content:center; border: 1px solid var(--color-border); background: rgba(0,0,0,0.02);} 
.pi-scrollhint{margin-top: 10px; font-size: 12px; color: var(--color-muted); font-style: italic;}

.pi-nuclear__stage{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.pi-grid{border: 1px solid var(--color-border); background: rgba(0,0,0,0.02); padding: 12px;}
.pi-grid__header{display:flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px;}
.pi-grid__label{font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-secondary);} 
.pi-grid__count{font-family: var(--font-serif); font-size: 16px;}
.pi-grid__icons{display:grid; grid-template-columns: repeat(5, 1fr); gap: 6px;}

.pi-node{
  height: 22px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 160ms ease, transform 160ms ease;
  background: #fff;
}

.pi-node.is-visible{opacity: 1; transform: translateY(0);} 
.pi-node--us{border-color: #1e3a5f;}
.pi-node--cn{border-color: #de2910;}

@media (max-width: 900px){
  .pi-overhang__stage, .pi-nuclear__stage{grid-template-columns: 1fr;}
  .pi-tank__body{height: 200px;}
  .pi-tabs{ flex-wrap: wrap; }
}

@media (max-width: 600px){
  .pi-module{ padding: 14px; }
  .pi-tank__body{ height: 160px; }
  .pi-tab{ padding: 10px 12px; font-size: 11px; min-height: 44px; }
  .pi-icons{ grid-template-columns: repeat(4, 1fr); }
  .pi-grid__icons{ grid-template-columns: repeat(4, 1fr); }
}