:root {
  --sidebar-width: 280px;
  --sidebar-bg: #fff;
  --sidebar-text: #333;
  --sidebar-link-color: #000;
  --sidebar-hover-bg: #f7f7f7;
  --sidebar-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
  --transition-speed: 0.3s;
  --overlay-bg: rgba(0, 0, 0, 0.4);
}

body.overflow-hidden {
  overflow: hidden;
}

#side-menu {
  position: fixed;
  top: 0;
  right: calc(-1 * var(--sidebar-width));
  width: var(--sidebar-width);
  max-width: 90%;
  height: 100%;
  background-color: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 20px 15px;
  z-index: 1050;
  box-shadow: var(--sidebar-shadow);
  overflow-y: auto;
  transition: right var(--transition-speed) ease;
  display: none;
}

body.side-menu-visible #side-menu {
  display: block;
  right: 0;
}

#side-menu.side-menu-left {
  right: auto;
  left: calc(-1 * var(--sidebar-width));
}

body.side-menu-visible #side-menu.side-menu-left {
  left: 0;
}

#side-menu .close {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 30px;
  background: none;
  border: none;
  color: var(--sidebar-link-color);
  z-index: 1060;
}

#side-menu .contents {
  margin-top: 50px;
}

#side-menu .nav-link {
  display: block;
  width: 100%;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--sidebar-link-color);
  text-decoration: none;
  position: relative;
  transition: background var(--transition-speed);
}

#side-menu .nav-link:hover {
  background-color: var(--sidebar-hover-bg);
}

#side-menu .nav-link i {
  position: absolute;
  top: 16px;
  left: 0;
}

#side-menu .nav-item,
#side-menu ul {
  width: 100%;
  padding-right: 0;
  list-style: none;
  margin: 0 0 20px 0;
}

.side-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay-bg);
  z-index: 1040;
  display: none;
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
}

body.side-menu-visible .side-menu-overlay {
  display: block;
  opacity: 1;
}

/* Submenu */
#side-menu .submenu-wrapper {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: var(--sidebar-bg);
  z-index: 1100;
  overflow-y: auto;
  transition: transform var(--transition-speed) ease;
  overflow-x: hidden;
}

#side-menu .submenu-wrapper.d-none {
  display: none !important;
}

#side-menu .submenu-back {
  cursor: pointer;
  margin: 30px 0;
}

/* Mega Menu in Sidebar Context */
#side-menu .mega-menu {
  width: 100%;
  padding: 0 !important;
  box-shadow: none !important;
  transform: translate(-15px, 110px) !important;
}

#side-menu .menu-list {
  text-align: right;
  margin-bottom: 20px;
}

#side-menu .mega-menu .img-holder {
  margin-right: -16px;
  padding-bottom: 30px;
}

#side-menu .dropdown-toggle::after {
  display: none;
}