body,
html {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", sans-serif;
  background-color: #000;
  color: #fff;
}

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

.qref-card {
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid #0f0;
  border-radius: 15px;
  padding: 3rem;
  width: 100%;
  max-width: 450px;
  box-shadow: 0 0 25px rgba(0, 255, 0, 0.2);
}

.qref-card h1 {
  color: #0f0;
  text-align: center;
  margin-bottom: 1rem;
}

.qref-card p {
  color: #ccc;
  text-align: center;
  font-size: 0.9em;
  line-height: 1.5;
  margin-bottom: 2rem;
}

.form-group input {
  width: 100%;
  padding: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid #0f0;
  border-radius: 8px;
  color: #fff;
  font-size: 1rem;
}

.submit-btn {
  width: 100%;
  padding: 15px;
  margin-top: 1.5rem;
  background: rgba(0, 255, 0, 0.1);
  border: 2px solid #0f0;
  border-radius: 50px;
  color: #0f0;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
}

.submit-btn:hover {
  background: #0f0;
  color: #000;
}

.submit-btn:disabled {
  background: #333;
  color: #666;
  border-color: #333;
  cursor: not-allowed;
}

.register-link {
  color: #0f0;
  text-decoration: none;
  display: block;
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

.message-box {
  padding: 15px;
  margin-bottom: 20px;
  border-radius: 5px;
  text-align: center;
  color: #fff;
  display: none;
}

.message-box.success {
  background-color: rgba(0, 255, 0, 0.15);
  border: 1px solid #0f0;
}

.message-box.error {
  background-color: rgba(255, 0, 0, 0.15);
  border: 1px solid #f00;
}