shift73k/assets/css/_nav-burger.scss

/* Hamburger settings overrides */
$hamburger-padding-x: 0.95rem !default;
$hamburger-padding-y: 0.625rem !default;
$hamburger-layer-width: 1.5rem !default;
$hamburger-layer-height: 2px !default;
$hamburger-layer-spacing: 6px !default;
// * skipping default color, using color from bootstrap instead, below
// $hamburger-layer-color: rgba(0, 0, 0, 0.55) !default;
$hamburger-layer-border-radius: 0.25rem !default;
$hamburger-hover-opacity: 0.7 !default;
// * skipping default color, using color from bootstrap instead, below
// $hamburger-active-layer-color: $hamburger-layer-color !default;
$hamburger-active-hover-opacity: $hamburger-hover-opacity !default;

/* import hamburgers sass */
@import "../node_modules/hamburgers/_sass/hamburgers/hamburgers.scss";

/* correct colors to match bootstrap defaults */
.navbar-light {
  .hamburger {
    &.navbar-toggler {
      border: 1px $navbar-light-toggler-border-color solid !important;
      .hamburger-inner {
        &,
        &::before,
        &::after {
          background-color: $navbar-light-color;
        }
      }
      &.is-active {
        .hamburger-inner::after {
          background-color: $navbar-light-color;
        }
      }
      &:focus {
        box-shadow: $navbar-light-toggler-border-color 0 0 0 $navbar-toggler-focus-width;
        // var(--bs-navbar-toggler-focus-width);
      }
    }
  }
}
.navbar-dark {
  .hamburger {
    &.navbar-toggler {
      border: 1px $navbar-dark-toggler-border-color solid !important;
      .hamburger-inner {
        &,
        &::before,
        &::after {
          background-color: $navbar-dark-color;
        }
      }
      &.is-active {
        .hamburger-inner::after {
          background-color: $navbar-dark-color;
        }
      }
      &:focus {
        box-shadow: $navbar-dark-toggler-border-color 0 0 0 $navbar-toggler-focus-width;
      }
    }
  }
}