body {
  background-color: #000;
  color: #fff;
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  font-size: 1.6rem;
}

.container {
  width: 100%;
  max-width: 800px;
  padding: 40px;
  background-color: #111;
  border-radius: 15px;
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.1);
  text-align: center;
  margin-top: -350px;
}

h1 {
  font-size: 3rem;
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 1.5rem;
}

input {
  width: 100%;
  padding: 14px;
  font-size: 1.6rem;
  border: none;
  border-radius: 8px;
  background-color: #222;
  color: #fff;
}

input:focus,
button:focus {
  outline: 3px solid #6C5CE7;
  background-color: #9e91ff;
}

button {
  width: 100%;
  padding: 16px;
  background-color: #6C5CE7;
  color: #fff;
  border: none;
  font-size: 2rem;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 15px;
}

#msg {
  margin-top: 20px;
  color: #ff5555;
  font-size: 1.4rem;
}

#loader {
  margin: 20px auto;
  border: 6px solid #222;
  border-top: 6px solid #6C5CE7;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
}

.hidden {
  display: none;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}