Preview:
.header {
  padding: 1.5rem 0;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: $white;
  z-index: 99;
  @include transition(300ms);

  @media (min-width: $lg) {
    padding: 3rem 0;
  }

  &.sticky {
    background: $white !important;
    padding: 2rem 0;
  }

  &--transperant {
    background: transparent;
  }

  &__logo-link {

    img,
    svg {
      float: left;
      height: auto;
      // height: 100%;
      width: 100%;
      width: auto;

      @media (min-width: $sm) {
        height: 50px;
      }

      @media (min-width: $xl) {
        height: 60px;
      }
    }
  }

  &-btn {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    position: relative;

    @media (min-width:$lg) {
      margin-top: 0;
      display: inline-block;
    }

    @media (min-width:$lg) {
      margin-left: 4.5rem !important;
    }

    a {
      border-radius: 0 15px 0 15px;
      width: auto !important;
      padding: 7px 25px !important;
      font-size: 1.5rem !important;
      line-height: 2.2rem !important;

      @media (min-width: $xl) {
        padding: 5px 43px 5px 30px !important;
        line-height: 3rem !important;
      }
    }
  }

  &__burger {
    background-color: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    padding: 0;
    float: right;
    position: relative;
    z-index: 10;

    @media (min-width: $lg) {
      display: none;
    }

    .line {
      fill: none;
      stroke: $primary;
      stroke-width: 6;
      transition: stroke-dasharray 600ms cubic-bezier(0.4, 0, 0.2, 1),
        stroke-dashoffset 600ms cubic-bezier(0.4, 0, 0.2, 1);
    }

    .line1 {
      stroke-dasharray: 60 207;
      stroke-width: 6;
    }

    .line2 {
      stroke-dasharray: 60 60;
      stroke-width: 6;
    }

    .line3 {
      stroke-dasharray: 60 207;
      stroke-width: 6;
    }

    &.opened .line1 {
      stroke-dasharray: 90 207;
      stroke-dashoffset: -134;
      stroke-width: 6;
    }

    &.opened .line2 {
      stroke-dasharray: 1 60;
      stroke-dashoffset: -30;
      stroke-width: 6;
    }

    &.opened .line3 {
      stroke-dasharray: 90 207;
      stroke-dashoffset: -134;
      stroke-width: 6;
    }
  }

  .col-lg-10 {
    position: static;
  }

  .nav-main {
    float: right;
    display: none;
    position: absolute;
    right: 0;
    padding: 50px 15px;
    width: 100%;
    top: calc(100% + 0px);
    background: $white;
    height: calc(100vh - 80px);

    @media (min-width: $lg) {
      height: auto;
      position: static;
      background: none;
      padding: 0;
      max-width: none;
      width: auto;
      display: flex !important;
      align-items: center;
    }

    @media (max-width: 991px) {
      overflow: auto;
    }

    .primary {
      display: block;
      float: left;
      margin: 0;
      padding: 0;
      width: 100%;
      text-align: center;

      @media (min-width: $lg) {
        text-align: left;
        display: flex;
        align-items: center;
      }
    }

    .menu {
      display: block;
      float: left;
      margin: 0;
      padding: 0;

      &-item {
        float: left;
        padding: 0;
        width: 100%;

        @media (min-width: $lg) {
          margin: 0 5px;
          width: auto;
        }

        i.dropdown-arv {
          position: absolute;
          right: 15px;
          width: 12px;
          height: 12px;
          text-align: center;
          top: 43%;
          z-index: 5;
          border-top: 2px solid $dark;
          border-right: 2px solid $dark;
          transform: translateY(-50%) rotate(135deg);

          &.active {
            transform: rotate(-45deg);
            content: "-";
          }
        }

        .dropdown-arv-cont {
          position: absolute;
          top: 4px;
          right: 18%;
          z-index: 5;
          width: 44px;
          height: 100%;
          @include transition(300ms);

          @media (min-width: $sm) {
            right: 35%;
          }

          @media (min-width: $md) {
            right: 40%;
          }

          @media (min-width: $lg) {
            display: none;
          }

          &.active {
            transform: rotate(180deg);
            @include transition(300ms);
          }
        }

        &:before {
          display: none;
        }

        &:first-child {
          margin-left: 0;
        }

        &:last-child {
          margin-right: 0;
        }

        a {
          position: relative;
          font-family: $Quicksand;
          font-weight: $normal;
          float: left;
          color: $dark;
          width: 100%;
          padding: 5px 15px;
          font-size: 2.5rem;
          line-height: 3.5rem;

          @media (min-width: $lg) {
            width: auto;
            padding: 7px 10px;
            border-radius: 10px;
            font-size: 1.7rem;
            line-height: 2.7rem;
          }

          @media (min-width: $xl) {
            padding: 7px 10px;
          }

          @media (min-width: $xxl) {
            padding: 10px 19px;
          }

          &:hover,
          &.active {
            color: $primary;

            .dropdown-arv {
              border-color: $primary;
            }
          }
        }

        &.current-menu-item a,
        &.current-menu-parent>a {
          color: $primary;
          font-weight: $bold;

          .dropdown-arv {
            border-color: $primary;
          }
        }

        .sub-menu {
          display: none;
          width: 100%;
          // padding-bottom: 10px;

          @media (min-width: $lg) {
            width: 240px;
            position: absolute;
            top: 100%;
            left: 0;
            background: $white;
            border-top: 2px solid $blue;
            padding: 10px 0;
            box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.4);
          }

          &.active {
            @media (max-width: 991px) {
              display: block;
              float: left;
              width: 100%;
            }
          }

          .menu-item {
            margin: 0;

            a {
              color: $gray;
              width: 100%;
              padding: 3px 15px;
              font-weight: $normal;
              font-size: 1.6rem;
              line-height: 2.2rem;

              @media (min-width: $lg) {
                padding: 5px 15px;
              }

              &:hover {
                color: $blue;
                background: transparent;
              }

              &:before {
                content: '';
                display: none;
                padding-right: 5px;

                @media (max-width: 991px) {
                  display: inline-block;
                }
              }
            }

            &.current-menu-item a {
              color: $blue;
              background: transparent;
            }
          }
        }

        &:hover {
          .sub-menu {
            @media (min-width: $lg) {
              display: block;
            }
          }
        }

        &-has-children {
          // display: flex;
          // justify-content: center;

          a {
            // display: inline-block;
            // width: auto;
          }
        }
      }
    }
  }

  &__nav-col {
    display: flex;
    justify-content: flex-end;
    align-items: center;
  }
}

body {

  &.home {
    .main-wrapper {
      padding-top: 0;
    }
  }

  .main-wrapper {
    padding-top: 8rem;

    @media (min-width:$lg) {
      padding-top: 12rem;
    }
  }
}
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