/* ==========================================================================
   Main Navigation Header Styles
   ========================================================================== */
#mainNav {
    background: rgba(10, 10, 10, 0.85) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    padding: 0.6rem 1.25rem;
    transition: all 0.2s ease;
}

#mainNav .navbar-brand {
    color: #ffffff !important;
    font-weight: 700;
    letter-spacing: 0.03em;
    font-size: clamp(0.95rem, 4.4vw, 1.25rem);
    white-space: nowrap;
    text-overflow: ellipsis;
    max-width: calc(100% - 56px);
}

.navbar-brand-inner {
    padding-right: 0.35rem;
    display: inline-flex;
    align-items: center;
    max-width: 100%;
}

#mainNav > .container-fluid {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
}

#mainNav .navbar-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#mainNav .nav-item {
    list-style: none;
}

#mainNav .nav-link,
#mainNav .nav-link:hover,
#mainNav .nav-link:focus,
#mainNav .nav-link.active,
#mainNav .nav-link.active:hover,
#mainNav .nav-link.active:focus {
    background: transparent !important;
    background-color: transparent !important;
    border: none !important;
    box-shadow: none !important;
}

#mainNav .nav-link {
    color: rgba(255, 255, 255, 0.65) !important;
    font-size: 0.92rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 0.45rem 0.65rem !important;
    position: relative;
    text-decoration: none;
    display: inline-block;
    transition: color 0.15s ease;
}

#mainNav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0.65rem;
    right: 0.65rem;
    height: 2px;
    background-color: #ffffff;
    border-radius: 1px;
    opacity: 0;
    transform: scaleX(0);
    transition: opacity 0.2s ease, transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

#mainNav .nav-link:hover {
    color: #ffffff !important;
}

#mainNav .nav-link:hover::after {
    opacity: 0.45;
    transform: scaleX(0.7);
}

#mainNav .nav-link.active {
    color: #ffffff !important;
    font-weight: 600;
}

#mainNav .nav-link.active::after {
    opacity: 1;
    transform: scaleX(1);
}

#mainNav .nav-link:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 3px;
    border-radius: 2px;
}

#mainNav .navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    padding: 0.35rem 0.65rem;
    background: transparent;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

#mainNav .navbar-toggler:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
}

#mainNav .navbar-toggler:focus {
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.25);
}

#mainNav .navbar-toggler i {
    color: #ffffff;
}

@media (max-width: 767.98px) {
    #mainNav {
        padding: 0.5rem 0.75rem;
    }
    #mainNav > .container-fluid {
        flex-wrap: wrap;
    }
    #mainNav .navbar-collapse {
        width: 100%;
    }
    #mainNav .navbar-nav {
        gap: 0.35rem;
        align-items: flex-end;
        margin-top: 0.2rem;
    }
    #mainNav .nav-link {
        text-align: left;
        padding: 0.45rem 0.5rem !important;
        width: fit-content;
        display: inline-block;
    }
    #mainNav .nav-link::after {
        left: 0.5rem;
        right: 0.5rem;
        bottom: 2px;
    }
}