.header {
  position: fixed;
  width: 100%;
  z-index: 335;
  margin: 0;
  padding: 0 15px;
  /* background: #fff;  */
  top: 0;
  transition: all 0.4s ease;
}
.header.scrolled {
  background: #fff;
  box-shadow: -1px 1px 5px 0px #ddd;
  transition: background-color 0.3s ease;
  top: 0;
}
@media (max-width: 991px) {
  .header.menu-open {
    background: #fff;
    height: 100vh;
    overflow: scroll;
    overflow-x: hidden;
  }
}

.logo {
  color: var(--main-color);
  font-size: 26px;
  font-weight: bold;

  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
}
/* button toggle */
.navbar .navbar-toggler {
  color: #444;
  font-size: 28px;
  border-color: #44444417;
}

.navbar .navbar-toggler:focus {
  box-shadow: none;
}

/* end button toggle */

.navbar .navbar-nav .nav-item a {
  color: #444;
  display: block;
  text-decoration: none;
  padding: 10px;
  font-weight: 500;
  transition: color var(--main-transition);
  transition: color var(--main-transition);
}
.navbar .navbar-nav .nav-item a.main-menu-item::before {
  content: "";
  position: absolute;
  width: 0;
  height: 4px;
  background-color: var(--main-color);
  top: 0;
  left: -100%;
  transition: width var(--main-transition), left var(--main-transition);
}
.navbar .navbar-nav .nav-item a.main-menu-item:hover::before {
  left: 0;
  width: 100%;
}

/* active hover main item */
.navbar .navbar-nav .nav-item a.main-menu-item:hover {
  color: var(--main-color);
  background: #fff;
}
.navbar .navbar-nav .nav-item.active a.main-menu-item {
  color: var(--main-color);
  background: #fff;
  font-weight: bold;
}
/* end active */

/* dropdown strat */
.navbar .navbar-nav .dropdown-menu {
  background: #fff;
  border-radius: 0;
  border-color: snow;
  min-width: 100%;
}
.navbar .navbar-nav .dropdown-menu .dropdown-item.active {
  background-color: #fff;
}
.navbar .navbar-nav .dropdown-menu .dropdown-item.active a,
.navbar .navbar-nav .dropdown-menu .dropdown-item a:hover {
  color: var(--main-color);
}

@media (min-width: 992px) {
  .navbar .navbar-nav .nav-item.dropdown:hover .dropdown-menu {
    display: block;
  }
}

@media (max-width: 991px) {
  .navbar-expand-lg .navbar-nav .dropdown-menu {
    display: block;
    margin-left: 20px;
  }
  .navbar-expand-lg .navbar-nav .dropdown-menu .dropdown-item {
    padding: 0;
  }
  .dropdown-item.active,
  .dropdown-item:active {
    background-color: #fff;
  }
}
.dropdown-item.active,
.dropdown-item:active {
  background-color: #fff;
}
/* dropdown end  */

/* prgress  */
.progress-container {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
}

.progress-bar {
  height: 100%;
  width: 0;
  background: var(--main-color);
  transition: width 0.1s ease;
}
/* end progress  */