header{width:100%;border-bottom:1px solid var(--border);box-shadow:0 1px 12px #0c121a0a;display:flex;align-items:center;justify-content:left;gap:10px;padding:16px 24px;flex-shrink:0;background-color:var(--muted);transition:none}main{display:flex;justify-content:center;align-items:center;flex:1;width:100%;transition:none}