:root{color:#172026;background:#f7f8fa;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{min-width:320px;margin:0}button,input,textarea,select{font:inherit}a{color:inherit}.app-header{display:flex;gap:18px;align-items:center;justify-content:space-between;border-bottom:1px solid #d7dde2;padding:12px 16px;background:#fff}.brand,.app-header a{font-weight:800;text-decoration:none}.brand{color:#153d4a}.app-header nav{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.app-header nav a{border-radius:6px;padding:8px 10px;color:#25323a}.app-header a:focus-visible{outline:3px solid #1c6b82;outline-offset:2px}