:root {
    --header-bg: #3d11d2;
}

/* Scoped header styles to avoid leaking into other sections */
.site-header {
    background-color: var(--header-bg);
}

.site-header .nav-item a {
    color: var(--white-color, #fff);
    font-size: 18px;
    line-height: 1rem;
}

.site-header .nav-item a .sm-txt {
    font-size: 11px;
}

.site-header .nav-item .dropdown-menu {
    border: unset;
    background: var(--sub2-color, #f5f5f5);
    top: 120%;
    left: 5%;
}

.site-header .nav-item a.dropdown-item {
    color: var(--black-color, #1e1e1e);
    font-size: 16px;
    text-align: center;
    padding: 0.75rem 0;
    border-left: 3px solid transparent;
}

.site-header li:hover > .dropdown-item {
    color: var(--header-bg);
    border-left: 3px solid var(--header-bg);
}

.site-header .dropdown-menu .dropdown-item:hover,
.site-header .dropdown-menu .dropdown-item:focus {
    color: var(--header-bg);
    border-left: 3px solid var(--header-bg);
    background-color: #f5f5f5;
}

@media (max-width: 768px) {
    .site-header .navbar-nav {
        height: 100vh;
    }

    .site-header .navbar-nav .nav-BN {
        margin-top: 2rem;
        color: var(--white-color, #fff);
        font-size: 20px;
        line-height: 1rem;
    }

    .site-header .nav-BN-menu li a {
        font-size: 1rem;
        text-decoration: none;
    }

    .site-header .nav-item a {
        font-size: 1rem;
        line-height: 1rem;
        padding: 0.75rem 0;
    }

    .site-header .nav-item a .sm-txt,
    .site-header .nav-item p .sm-txt {
        font-size: 13px;
    }

    .site-header .nav-BN-menu .sm-txt {
        color: #f5f5f5;
    }

    .site-header hr {
        margin: 0.25rem 0;
        border-top: 1px var(--white-color, #fff) solid;
        opacity: 0.5;
    }
}

/* nav toggle animation */
.site-header .navbar-toggler-icon {
    background-image: none !important;
    background-color: var(--white-color);
    height: 3px;
    width: 25px;
    margin: 10px 0;
    position: relative;
    transition: all 0.35s ease-out;
    transform-origin: center;
}

.site-header .navbar-toggler-icon::before {
    display: block;
    background-color: var(--white-color);
    height: 3px;
    content: "";
    position: relative;
    top: -7px;
    transition: all 0.15s ease-out;
    transform-origin: center;
}

.site-header .navbar-toggler-icon::after {
    display: block;
    background-color: var(--white-color);
    height: 3px;
    content: "";
    position: relative;
    top: 4px;
    transition: all 0.35s ease-out;
    transform-origin: center;
}

.site-header.navbar-dark .navbar-toggler-icon,
.site-header.navbar-dark .navbar-toggler-icon::before,
.site-header.navbar-dark .navbar-toggler-icon::after {
    background-color: var(--bs-gray-100);
}

.site-header .navbar-toggler:not(.collapsed) .navbar-toggler-icon {
    transform: rotate(45deg);
}

.site-header .navbar-toggler:not(.collapsed) .navbar-toggler-icon::before {
    opacity: 0;
}

.site-header .navbar-toggler:not(.collapsed) .navbar-toggler-icon::after {
    transform: rotate(-90deg) translateX(7px);
}