@media(max-width:980px){.app-shell{grid-template-columns:1fr}.manifest,.control-bay{border:0}.vault-stage{min-height:560px}.control-bay{border-top:1px solid var(--line)}.page-hero{grid-template-columns:1fr}.content-card,.content-card.wide{grid-column:span 6}}@media(max-width:620px){.top-rail{height:auto;padding:12px;gap:10px;flex-wrap:wrap}.rail-links{order:3;width:100%;overflow:auto;white-space:nowrap;padding-bottom:4px}.app-shell{display:block}.manifest h1{font-size:48px}.vault-stage{min-height:470px}.relevance-strip{grid-template-columns:1fr}.content-card,.content-card.wide{grid-column:1/-1}.page-canvas{padding:40px 16px}.page-hero h1{font-size:54px}footer{flex-direction:column;gap:12px}}