.sidebar {
  position: fixed;
  top: var(--header-height);
  width: 150px;
  height: 100%;
  padding-top: 50px;
  transition: width 0.3s ease;
  overflow: hidden;
  z-index: 10;
}

.scroll-line {
  position: absolute;
  left: 45.5%;
  transform: translateX(-50%);
  width: 4px;
  background-color: var(--background-color);
  height: 0;
  transition: height 0.3s ease;
  z-index: 0;
  margin-top: 15px;
  max-height: 50%;
  animation: slide-in 0.5s ease-out forwards;
}

.sidebar ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.sidebar ul li {
  display: flex;
  height: 100px;
  justify-content: space-between;
  align-items: center;
  flex-direction: column;
  animation: slide-in 0.5s ease-out forwards;
  opacity: 0;
}

@keyframes slide-in {
  from {
    transform: translateX(-100px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.sidebar ul li a {
  color: var(--primary-red);
  font-size: var(--icon-size);
  display: flex;
  align-items: center;
  transition: background-color 0.3s, color 0.3s;
}
a {
  border: none !important;
}
.sidebar ul li a i {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-right: 10px;
  font-size: 24px;
  transition: color 0.3s, transform 0.3s;
  background-color: var(--background-color);
  width: 45px;
  height: 45px;
  border-radius: 50%;
}

.sidebar ul li a.active i {
  background-color: var(--primary-red);
  color: white;
}
.sidebar ul li a:hover {
  transform: scale(1.2);
  color: var(--black-text-color);
}
.sidebar ul li a .link-text {
  display: none;
}

.sidebar.expanded ul li a .link-text {
  display: inline;
}

.main-content {
  padding-left: 80px;
  transition: padding-left 0.3s ease;
}

.sidebar ul li:nth-child(1) {
  animation-delay: 0.1s;
}

.sidebar ul li:nth-child(2) {
  animation-delay: 0.2s;
}

.sidebar ul li:nth-child(3) {
  animation-delay: 0.3s;
}

.sidebar ul li:nth-child(4) {
  animation-delay: 0.4s;
}

.sidebar ul li:nth-child(5) {
  animation-delay: 0.5s;
}

@media (max-width: 925px) {
  .sidebar {
    position: fixed;
    bottom: 0;
    top: auto;
    width: 100%;
    height: 60px;
    padding: 0;
    background-color: var(--background-color);
  }

  .scroll-line {
    display: none;
  }

  .sidebar ul {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: inherit;
  }

  .sidebar ul li {
    justify-content: center;
  }
}