header {
  width: 100%;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  position: fixed;
  z-index: 5;

  padding: 1rem 0;

  box-shadow: 0 0 0.2rem 0 var(--black5);
  backdrop-filter: blur(5px);

  -webkit-backdrop-filter: blur(5px);
  background: rgba(255, 255, 255, 0.8);
}

.desktop-header-content {
  width: 100%;
  max-width: 1100px;

  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  width: 100%;
  max-width: 130px;

  display: flex;
}

.logo img {
  width: 100%;
}

.desktop-menu-list {
  display: flex;
  gap: 1rem;
}

.desktop-menu-list li a {
  font-size: 1rem;
  font-weight: 500;

  transition: .3s ease color;

  color: var(--black6);
}
.desktop-menu-list li button {
  font-size: 0.9rem;
  font-weight: 500;

  transition: .3s ease color;

  color: var(--black6);
}
.desktop-menu-list li button { background: none; }
.desktop-menu-list li a:hover, li button:hover { color: var(--red9); }

.desktop-social-media {
  display: flex;
  gap: 1rem;
}

.desktop-social-media a {
  height: 1.2rem;

  display: flex;

  transition: .3s ease;
}

.desktop-social-media a:hover {
  transform: translateY(-3px);
}

.desktop-social-media a img {
  height: 100%;
}

.desktop-social-media button {
  height: 1.2rem;

  display: flex;

  background: none;
}

.desktop-social-media button img {
  height: 100%;
}

.desktop-menu-list .selected-item {
  font-weight: 600;
  color: var(--violet9);
}


.mobile-menu-btn {
  display: none;
  justify-content: center;
  align-items: center;

  position: relative;

  transition: .5s ease;

  background: none;
}

.mobile-menu-intern-detail {
  width: 35px;
  height: 3.5px;

  display: flex;

  transition: .5s ease;
  
  border-radius: 5px;
  
  background: var(--black9);
}
.mobile-menu-intern-detail::before,
.mobile-menu-intern-detail::after {
  content: '';

  width: 35px;
  height: 3.5px;

  position: absolute;

  transition: .5s ease;

  border-radius: 5px;

  background: var(--black9);
}
.mobile-menu-intern-detail::before { transform: translateY(-10px); }
.mobile-menu-intern-detail::after { transform: translateY(10px); }

.mobile-menu-btn.open .mobile-menu-intern-detail {
  transform: translateX(-5px);
  background: transparent;
}
.mobile-menu-btn.open .mobile-menu-intern-detail::before { transform: rotate(45deg) translate(5px, -5px); }
.mobile-menu-btn.open .mobile-menu-intern-detail::after { transform: rotate(-45deg) translate(5px, 5px); }

.mobile-menu-navigation {
  width: 100%;
  max-height: 0px;

  display: flex;
  flex-direction: column;
  gap: 1.2rem;

  overflow: hidden;

  transition: .5s ease;
}
.mobile-menu-navigation a {
  font-size: 1.3rem;
  font-weight: 600;
  padding-left: 0.5rem;

  transition: .3s ease;

  border-left: 3px solid transparent;
  color: var(--black6);
}
.mobile-menu-navigation a:hover { color: var(--red9); }

.mobile-menu-navigation.open-mobile-list {
  padding: 2.5rem 0 0 0;
  max-height: 600px;
}

@media (max-width: 1128px) {
  header {
    padding: 1rem 2rem;
  }
}

@media (max-width: 958px) {
  header nav {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }
}