body {
  background: #f4f6f8;
  font-family: Arial, sans-serif;
  display: grid;
  place-items: center;
  height: 100vh;
}

.login-card {
  background: #fff;
  padding: 30px;
  width: 320px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
}

.login-card h1 {
  margin-bottom: 20px;
  text-align: center;
}

label {
  display: block;
  margin-bottom: 15px;
}

label span {
  display: block;
  font-size: 13px;
  margin-bottom: 5px;
}

input {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #ccc;
}

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

.error {
  background: #fee2e2;
  color: #991b1b;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 15px;
  text-align: center;
}