body {
  background: radial-gradient(circle at top left, #1b0033, #000000);
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  color: #fff;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  background: #0f0f0f;
  padding: 40px 30px;
  border-radius: 16px;
  box-shadow: 0 0 25px #00ffff99;
  text-align: center;
  width: 90%;
  max-width: 400px;
}

h2 {
  font-size: 2.2em;
  color: #00ffff;
  margin-bottom: 25px;
  text-shadow: 0 0 10px #00ffff;
}

input[type="text"], input[type="password"] {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  background: #111;
  border: 2px solid #ff00ff;
  border-radius: 10px;
  color: #fff;
  font-size: 1em;
  outline: none;
  transition: 0.3s;
}

input:focus {
  border-color: #00ffff;
  box-shadow: 0 0 10px #00ffff44;
}

button {
  margin-top: 15px;
  width: 100%;
  padding: 12px;
  background: linear-gradient(to right, #00ffff, #00ccff);
  border: none;
  color: #000;
  font-weight: bold;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1.1em;
  box-shadow: 0 0 10px #00ffff99;
}

button:hover {
  opacity: 0.9;
}

.register-link {
  display: block;
  margin-top: 20px;
  color: #ff00ff;
  text-decoration: none;
  font-weight: bold;
}

.register-link:hover {
  text-shadow: 0 0 10px #ff00ff;
}

.msg {
  color: #f44;
  margin-top: 10px;
}