.submenu-container {
  width: 100%;
  background-color: #ffffff;
  padding: 0px 0px 12px 0px;
  /* Removed the 15px left padding */
  border-bottom: 1px solid #e0e0e0;
}

.submenu {
  list-style-type: none;
  padding: 0;
  margin: 0 auto;
  /* Changed to auto margins for centering */
  max-width: 800px;
}

.submenu-item {
  display: inline-block;
  margin-right: 30px;
  /* Retained the spacing between submenu items */
}

.submenu-item a {
  display: block;
  padding: 8px 10px;
  text-decoration: none;
  color: #333;
  font-size: 16px;
  transition: background-color 0.2s, color 0.2s;
}

.submenu-item a:hover {
  background-color: #f5f5f5;
  color: #007BFF;
}