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strong{color:var(--color-muted)}.ui-empty-state{display:grid;gap:var(--space-2);justify-items:center;border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-subtle);padding:var(--space-10) var(--space-5);text-align:center;font-size:var(--text-sm)}.ui-toast-stack{position:fixed;right:var(--space-6);bottom:var(--space-6);z-index:50;display:grid;width:min(360px,calc(100vw - 32px));gap:var(--space-3)}.ui-toast{display:grid;grid-template-columns:22px minmax(0,1fr);gap:var(--space-3);border:1px solid var(--tone-line, var(--color-line));border-radius:var(--radius-md);background:var(--color-surface);box-shadow:var(--shadow-toast);color:var(--tone-fg, var(--color-ink));padding:var(--space-4)}.ui-toast strong{display:block;color:var(--color-ink)}.ui-toast p{margin:var(--space-1) 0 0;color:var(--color-muted);font-size:var(--text-sm)}@media (max-width: 920px){.app-shell{grid-template-columns:1fr;padding-bottom:72px}.topnav{padding:var(--space-4) var(--space-5)}.topnav-links{display:none}.topbar,.route-surface{padding:var(--space-5)}.ui-grid--page,.ui-grid--cards,.ui-grid--metrics{grid-template-columns:1fr}.mobile-nav{position:fixed;right:0;bottom:0;left:0;z-index:20;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--color-line);background:#fffffff5;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.mobile-nav-link{display:grid;min-height:64px;place-items:center;gap:var(--space-1);padding:var(--space-2) var(--space-1);font-size:11px;font-weight:750}.mobile-nav-link.active{color:var(--color-brand)}}@media (max-width: 640px){.topbar{align-items:flex-start;flex-direction:column}.topbar 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