/* Navbar visual parity with index.html, scoped to main-site pages only */
body.main-site-navbar .navbar {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}

body.main-site-navbar .navbar > .container {
    display: flex;
    flex-wrap: inherit;
    align-items: center;
    justify-content: space-between;
}

body.main-site-navbar .navbar-brand {
    display: inline-block;
    padding: 0.3125rem 0;
    margin-right: 1rem;
    font-size: 1.25rem;
    line-height: inherit;
    white-space: nowrap;
}

body.main-site-navbar .navbar-nav {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin: 0;
    list-style: none;
}

body.main-site-navbar .navbar-collapse {
    flex-basis: 100%;
    flex-grow: 1;
    align-items: center;
}

body.main-site-navbar .collapse:not(.show) {
    display: none;
}

body.main-site-navbar .ms-auto {
    margin-left: auto !important;
}

body.main-site-navbar .fixed-top {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1030;
}

@media (min-width: 992px) {
    body.main-site-navbar .navbar-expand-lg {
        flex-wrap: nowrap;
        justify-content: flex-start;
    }

    body.main-site-navbar .navbar-expand-lg .navbar-nav {
        flex-direction: row;
    }

    body.main-site-navbar .navbar-expand-lg .navbar-collapse {
        display: flex !important;
        flex-basis: auto;
    }

    body.main-site-navbar .navbar-expand-lg .navbar-toggler {
        display: none;
    }
}

body.main-site-navbar {
    --navbar-transition-speed: var(--transition-speed, 0.25s);
    --navbar-ease: var(--ease-out-expo, cubic-bezier(0.16, 1, 0.3, 1));
    --navbar-accent: var(--accent, #00d4ff);
    --navbar-font-display: 'Montserrat', sans-serif;
    --main-navbar-offset: 84px;
    padding-top: var(--main-navbar-offset);
}

@keyframes navbar-settle {
    from {
        opacity: 0.92;
        transform: translate3d(0, -6px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes navbar-item-settle {
    from {
        opacity: 0.84;
        transform: translate3d(0, -4px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

body.main-site-navbar .navbar,
body.main-site-navbar .navbar.bg-dark {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1030;
    padding-top: 0.78rem;
    padding-bottom: 0.78rem;
    overflow: visible;
    background: rgba(15, 20, 25, 0.97) !important;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05),
                0 8px 32px rgba(0, 0, 0, 0.12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: background var(--navbar-transition-speed) var(--navbar-ease),
                box-shadow var(--navbar-transition-speed) var(--navbar-ease),
                border-color var(--navbar-transition-speed) var(--navbar-ease),
                padding var(--navbar-transition-speed) var(--navbar-ease);
    animation: navbar-settle 480ms var(--navbar-ease) both;
}

body.main-site-navbar .navbar::after,
body.main-site-navbar .navbar.bg-dark::after {
    content: '';
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: -1px;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 212, 255, 0.45) 50%, transparent 100%);
    opacity: 0;
    transition: opacity var(--navbar-transition-speed) var(--navbar-ease);
    pointer-events: none;
}

body.main-site-navbar .navbar.navbar-scrolled,
body.main-site-navbar .navbar.bg-dark.navbar-scrolled {
    padding-top: 0.48rem;
    padding-bottom: 0.48rem;
    background: rgba(7, 12, 16, 0.97) !important;
    border-bottom-color: rgba(0, 212, 255, 0.24);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04),
                0 14px 36px rgba(0, 0, 0, 0.26);
}

body.main-site-navbar .navbar.navbar-scrolled::after,
body.main-site-navbar .navbar.bg-dark.navbar-scrolled::after {
    opacity: 1;
}

body.main-site-navbar .navbar-brand {
    margin-right: 2rem;
    animation: navbar-item-settle 360ms var(--navbar-ease) 70ms both;
}

body.main-site-navbar .navbar-toggler {
    animation: navbar-item-settle 360ms var(--navbar-ease) 90ms both;
}

body.main-site-navbar .navbar-nav .nav-item {
    animation: navbar-item-settle 360ms var(--navbar-ease) both;
}

body.main-site-navbar .navbar-nav .nav-item:nth-child(1) { animation-delay: 110ms; }
body.main-site-navbar .navbar-nav .nav-item:nth-child(2) { animation-delay: 140ms; }
body.main-site-navbar .navbar-nav .nav-item:nth-child(3) { animation-delay: 170ms; }
body.main-site-navbar .navbar-nav .nav-item:nth-child(4) { animation-delay: 200ms; }
body.main-site-navbar .navbar-nav .nav-item:nth-child(5) { animation-delay: 230ms; }
body.main-site-navbar .navbar-nav .nav-item:nth-child(6) { animation-delay: 260ms; }

body.main-site-navbar .navbar-brand img {
    display: block;
    height: 52px;
    width: auto;
    transition: transform var(--navbar-transition-speed) var(--navbar-ease),
                height var(--navbar-transition-speed) var(--navbar-ease),
                filter var(--navbar-transition-speed) var(--navbar-ease);
}

body.main-site-navbar .navbar.navbar-scrolled .navbar-brand img {
    height: 44px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.25));
}

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

body.main-site-navbar .navbar-nav .nav-link {
    padding-left: 1.2rem !important;
    padding-right: 1.2rem !important;
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
    font-family: var(--navbar-font-display);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: rgba(255, 255, 255, 0.9) !important;
    transition: color var(--navbar-transition-speed) var(--navbar-ease),
                transform var(--navbar-transition-speed) var(--navbar-ease),
                padding var(--navbar-transition-speed) var(--navbar-ease),
                font-size var(--navbar-transition-speed) var(--navbar-ease);
    position: relative;
}

body.main-site-navbar .navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--navbar-accent), transparent);
    transition: transform var(--navbar-transition-speed) var(--navbar-ease);
}

body.main-site-navbar .navbar-nav .nav-link:hover {
    transform: translateY(-1px);
    color: var(--navbar-accent) !important;
}

body.main-site-navbar .navbar-nav .nav-link:hover::after,
body.main-site-navbar .navbar-nav .nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

body.main-site-navbar .navbar-nav .nav-link.active {
    color: var(--navbar-accent) !important;
}

body.main-site-navbar .navbar.navbar-scrolled .navbar-nav .nav-link {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    font-size: 0.92rem;
}

body.main-site-navbar .navbar-nav .dropdown-menu {
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

body.main-site-navbar .navbar-nav .dropdown-item {
    color: rgba(255, 255, 255, 0.88);
    border-radius: 10px;
    font-weight: 500;
    transition: background-color var(--navbar-transition-speed) ease,
                color var(--navbar-transition-speed) ease,
                transform var(--navbar-transition-speed) ease;
}

body.main-site-navbar .navbar-nav .dropdown-item:hover {
    background: rgba(0, 212, 255, 0.12);
    color: var(--navbar-accent);
    transform: translateX(3px);
}

body.main-site-navbar .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.2);
    transition: border-color 180ms var(--navbar-ease),
                background-color 180ms var(--navbar-ease),
                transform 120ms var(--navbar-ease);
}

body.main-site-navbar .navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
}

body.main-site-navbar .navbar-toggler:active {
    transform: scale(0.96);
}

@media (max-width: 991.98px) {
    body.main-site-navbar .navbar-collapse {
        max-height: 70vh;
        overflow-y: auto;
        margin-top: 0.5rem;
        padding: 0.75rem;
        border-radius: 12px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        background: rgba(15, 20, 25, 0.92);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
    }

    body.main-site-navbar .navbar-nav {
        text-align: center;
    }

    body.main-site-navbar .navbar-nav .nav-link {
        padding-top: 0.7rem;
        padding-bottom: 0.7rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    body.main-site-navbar .navbar,
    body.main-site-navbar .navbar-brand,
    body.main-site-navbar .navbar-toggler,
    body.main-site-navbar .navbar-nav .nav-item {
        animation: none !important;
    }

    body.main-site-navbar .navbar,
    body.main-site-navbar .navbar-brand img,
    body.main-site-navbar .navbar-nav .nav-link,
    body.main-site-navbar .navbar-nav .nav-link::after,
    body.main-site-navbar .navbar-toggler {
        transition-duration: 0.01ms !important;
    }
}