.wcu-section{padding-block:var(--space-2xl);background:var(--surface);border-block:1px solid var(--border);position:relative;overflow:hidden}.wcu-blueprint{opacity:.03;background-image:linear-gradient(var(--text) 1px, transparent 1px), linear-gradient(90deg, var(--text) 1px, transparent 1px);pointer-events:none;background-size:40px 40px;position:absolute;inset:0}.wcu-header{margin-bottom:var(--space-xl)}.wcu-header header{margin-bottom:0}.wcu-grid{background:var(--border);border:1px solid var(--border);grid-template-columns:repeat(3,1fr);gap:1px;display:grid}.wcu-card{padding:var(--space-xl) var(--space-lg);background:var(--surface);transition:background var(--transition);position:relative}.wcu-card:hover{background:var(--background)}.wcu-index{font-family:var(--font-display);font-size:var(--text-2xl);color:var(--accent);margin-bottom:var(--space-md);transition:color var(--transition);display:block}.wcu-card:hover .wcu-index{color:var(--accent)}.wcu-card-header{text-align:left;cursor:default;width:100%;font:inherit;color:inherit;background:0 0;border:none;padding:0;display:block}.wcu-title{font-size:var(--text-xl);margin-bottom:.75rem}.wcu-toggle{display:none}.wcu-panel{overflow:hidden}.wcu-description{font-size:var(--text-sm);color:var(--text-secondary);line-height:1.75}@media (max-width:1024px){.wcu-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.wcu-grid{grid-template-columns:1fr}.wcu-section{padding-block:var(--space-xl)}.wcu-card-header{align-items:center;gap:var(--space-sm);cursor:pointer;display:flex}.wcu-card-header .wcu-index{margin-bottom:0}.wcu-card-header .wcu-title{flex:1;margin-bottom:0}.wcu-toggle{font-size:var(--text-xl);color:var(--accent);transition:color var(--transition);flex-shrink:0;display:block}.wcu-card-header-open .wcu-toggle{color:var(--accent)}.wcu-panel .wcu-description{padding-top:var(--space-md)}}