*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,sans-serif;background:#f5f5f5;min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{background:#fff;padding:2rem;border-radius:8px;width:100%;max-width:360px;box-shadow:0 2px 8px #0000001a}h1{font-size:1.25rem;margin-bottom:1.5rem}label{display:block;font-size:.875rem;margin-bottom:.25rem}input{display:block;width:100%;padding:.5rem .75rem;border:1px solid #ccc;border-radius:4px;font-size:1rem;margin-bottom:1rem}button{width:100%;padding:.6rem;background:#1a1a1a;color:#fff;border:none;border-radius:4px;font-size:1rem;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}.error{color:#c00;font-size:.875rem;margin-top:.75rem}