.content-wrapper {
  max-width: 100%;
  padding: 20px;
}

.system-title {
  color: #337ab7;
  margin: 20px 0;
  font-weight: 600;
}

.login-container {
  max-width: 450px;
  margin: 30px auto;
}

.panel {
  border-radius: 4px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.panel-heading {
  padding: 15px;
}

.panel-body {
  padding: 20px;
}

.input-group-addon {
  background-color: #f8f8f8;
  color: #337ab7;
}

.btn-primary {
  background-color: #337ab7;
  border-color: #2e6da4;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: #286090;
  border-color: #204d74;
}