body {
  margin: 0;
  background: #f5f5f7;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro", "PingFang SC";
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.card {
  background: white;
  padding: 40px;
  width: 320px;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,.08);
}

h1 {
  font-size: 22px;
  text-align: center;
  margin-bottom: 30px;
}

input {
  width: 100%;
  padding: 12px;
  margin-bottom: 16px;
  border-radius: 10px;
  border: 1px solid #ddd;
  font-size: 14px;
}

button {
  width: 100%;
  padding: 12px;
  background: black;
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  cursor: pointer;
}

a {
  display: block;
  text-align: center;
  margin-top: 16px;
  color: #0071e3;
  text-decoration: none;
}

.error-alert {
    background-color: #fff5f5;
    color: #ff3b30;
    font-size: 14px;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    text-align: center;
}