body { background: #f8fafc; }
.card { box-shadow: 0 2px 8px rgba(0,0,0,.08); }
/* --- login form sizing fix --- */
*, *::before, *::after { box-sizing: border-box; }
.login-card { max-width: 420px; width: 100%; overflow: hidden; }
.login-card input[type="text"],
.login-card input[type="password"],
.login-card button {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  display: block;
}