* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(135deg, #eef2ff, #fdf2f8);
  color: #111827;
}

.page-center {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.card {
  background: white;
  max-width: 420px;
  width: 100%;
  padding: 32px;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.login-btn {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(90deg, #6366f1, #a855f7);
  color: white;
  cursor: pointer;
}