/* Existing side panel base */
.sidepanel {
  width: 0;
  position: fixed;
  z-index: 999;
  height: 100%;
  top: 0;
  left: 0;
  background-color: #111;
  overflow-x: hidden;
  transition: 0.4s;
  padding-top: 60px;
}

/* Main links */
.sidepanel a {
  padding: 10px 20px;
  text-decoration: none;
  font-size: 18px;
  color: white;
  display: block;
  transition: 0.3s;
}

.sidepanel a:hover {
  background-color: #575757;
}

/* Dropdown section styling */
.dropdown-container {
  display: none;
  background-color: #2c2c2c;
  padding-left: 20px;
}

.dropdown-container a {
  font-size: 16px;
  padding: 8px 20px;
  color: #ccc;
}

.dropdown-container a:hover {
  background-color: #444;
  color: #fff;
}

/* Dropdown arrow style */
.dropdown-btn {
  cursor: pointer;
  position: relative;
}

.dropdown-btn .arrow {
  float: right;
  font-size: 12px;
  transition: transform 0.3s;
}

.dropdown-btn.active .arrow {
  transform: rotate(180deg);
}

/* Open/close button */
.openbtn {
  font-size: 18px;
  cursor: pointer;
  background-color: #111;
  color: white;
  border: none;
  padding: 10px 15px;
}

.openbtn:hover {
  background-color: #444;
}