:root{color:#1f2933;background:#f4f7f5;font-family:system-ui,sans-serif}body{margin:0;min-width:320px}button,input{font:inherit}.auth-card,.admin-shell{max-width:36rem;margin:10vh auto;padding:2rem;background:#fff;border-radius:.75rem}form{display:grid;gap:.75rem}input,button{min-height:2.75rem}header{display:flex;align-items:center;justify-content:space-between;gap:1rem}[role=alert]{color:#8a1c1c}