body {
  margin:0;
  font-family: system-ui, sans-serif;
  background:#f1f5f9;
}

.login-page {
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:100vh;
  background:linear-gradient(135deg,#2563eb,#1e40af);
}

.login-box {
  background:white;
  padding:30px;
  border-radius:14px;
  width:90%;
  max-width:360px;
  text-align:center;
  box-shadow:0 10px 30px rgba(0,0,0,.3);
}

.login-box h2 { margin:0; }
.login-box p { color:#64748b; margin-bottom:20px; }

input {
  width:100%;
  padding:12px;
  margin:10px 0;
  border-radius:8px;
  border:1px solid #cbd5e1;
  font-size:16px;
}

button {
  width:100%;
  padding:12px;
  background:#2563eb;
  border:none;
  color:white;
  font-weight:bold;
  border-radius:8px;
  cursor:pointer;
}

.error {
  background:#fee2e2;
  color:#b91c1c;
  padding:10px;
  border-radius:6px;
  margin-bottom:10px;
}