*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f8fafc;color:#1e293b;min-height:100vh}button{cursor:pointer}.app-shell{display:flex;min-height:100vh}.app-nav{width:220px;background:#0f172a;padding:1.5rem 1rem;display:flex;flex-direction:column;gap:4px;min-height:100vh;flex-shrink:0}.app-main{flex:1;padding:2rem;overflow-y:auto;min-width:0}.hamburger-btn{display:none;position:fixed;top:.75rem;left:.75rem;z-index:300;background:#0f172a;color:#fff;border:none;border-radius:6px;padding:.45rem .65rem;font-size:1.1rem;line-height:1}.nav-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:150}.alerta-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;gap:.75rem;flex-wrap:wrap}.alerta-grid{display:grid;grid-template-columns:220px 1fr;gap:1.5rem}.alerta-search-bar{display:flex;gap:.75rem;margin-bottom:.75rem;align-items:center;flex-wrap:wrap}.alerta-search-bar input{min-width:0;flex:1}.tab-bar{display:flex;gap:0;margin-bottom:1rem;border-bottom:2px solid #e2e8f0;overflow-x:auto}.entity-picker{position:absolute;top:calc(100% + 6px);left:0;z-index:100;background:#fff;border:1px solid #e2e8f0;border-radius:8px;box-shadow:0 4px 16px #0000001f;padding:.75rem;width:300px}@media (max-width: 768px){.hamburger-btn{display:block}.app-nav{position:fixed;left:-240px;top:0;z-index:200;transition:left .22s ease;width:220px}.app-nav.nav-open{left:0}.nav-overlay.nav-open{display:block}.app-main{padding:3.5rem 1rem 1rem}.alerta-grid{grid-template-columns:1fr}.alerta-search-bar{flex-wrap:wrap}.alerta-search-bar input{flex:1 1 100%}.tab-bar button{padding:.5rem .8rem!important;font-size:.82rem!important}.entity-picker{width:calc(100vw - 2rem);max-width:320px;left:auto;right:0}}