.navbar-custom {
    padding: 18px 0;

    background: rgba(6, 3, 24, 0.65);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);

    transition: all 0.3s ease;
}

.navbar-custom.navbar-scrolled {
    background: rgba(6, 3, 24, 0.95);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);

    box-shadow: 0 8px 30px rgba(0,0,0,0.35);
    padding: 12px 0;
}

.navbar-custom .nav-link {
    position: relative;
    color: #ffffff !important;

    text-transform: uppercase;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 1.2px;

    margin-left: 28px;
    padding-bottom: 6px;

    opacity: 0.9;
    transition: all 0.3s ease;
}

.navbar-custom .nav-link:hover {
    color: #8D67F2 !important;
    opacity: 1;
}

.navbar-custom .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;

    width: 0%;
    height: 2px;

    background: linear-gradient(
        90deg,
        #8D67F2 0%,
        #117EF5 100%
    );

    transition: width 0.3s ease;
}

.navbar-custom .nav-link:hover::after {
    width: 100%;
}

.navbar-custom .nav-link.active::after {
    width: 100%;
}

/* Selektor ber-ID dipakai untuk menandingi #mainNav .navbar-brand img di
   template_fe/css/styles.css, yang mengunci tinggi logo di 1.5rem.
   Logo aslinya 171x81, jadi ditahan di bawah 81px agar tidak pecah. */
#mainNav .navbar-brand img {
    height: 56px;
    width: auto;
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.navbar-toggler {
    border: none;
}

.navbar-toggler i {
    color: #ffffff;
    font-size: 20px;
}

@media (max-width: 991px) {
    .navbar-custom {
        background: #060318 !important;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        box-shadow: 0 8px 30px rgba(0,0,0,0.45);
    }

    .navbar-custom.navbar-scrolled {
        background: #060318 !important;
    }

    .navbar-custom .nav-link {
        margin-left: 0;
        padding: 12px 0;
        font-size: 14px;
        letter-spacing: 1.4px;
    }

    #mainNav .navbar-brand img {
        height: 44px;
    }
}

@media (max-width: 575px) {
    #mainNav .navbar-brand img {
        height: 38px;
    }
}

.navbar-custom,
.navbar-custom .nav-link {
    font-family: 'Poppins', sans-serif !important;
}

@media (max-width: 575px) {
    .navbar-toggler-icon {
        width: 1.6rem;
        height: 1.6rem;
    }
}

@media (min-width: 576px) and (max-width: 991px) {
    .navbar-toggler-icon {
        width: 2.4rem;
        height: 2.4rem;
    }
}