/* Moved from header.php to reduce DOM bloat */
/* Premium Header glassmorphism styles */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    transition: all var(--bf-transition);
    background-color: rgba(5, 5, 6, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--bf-border);
    padding: 1rem 0;
}

.site-header.scrolled {
    background-color: var(--bf-bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.75rem 0;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-branding {
    font-family: var(--bf-font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    height: 70px;
    /* Clean bounds for the logo */
    display: flex;
    align-items: center;
}

.site-header.scrolled .site-branding {
    height: 50px;
}

.site-branding a {
    color: var(--bf-text-primary);
    display: flex;
    align-items: center;
    height: 100%;
    /* Native White Logo on Transparent PNG */
    transition: all var(--bf-transition);
}

[data-theme='light'] .site-branding a {
    /* In light mode -> Invert to become Black Logo */
    filter: invert(1);
}

.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    font-family: var(--bf-font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--bf-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: all var(--bf-transition);
    display: block;
    padding: 0.5rem 0;
}

.main-navigation a:hover {
    color: var(--bf-accent);
}

.main-navigation li.current-menu-item>a {
    color: var(--bf-text-primary);
}

/* Essential Submenu Fixes */
.sub-menu {
    display: block;
    position: absolute;
    top: 100%;
    left: -1rem;
    background: rgba(15, 15, 18, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    min-width: 280px;
    padding: 1.5rem;
    border-radius: var(--bf-radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
    /* very subtle edge */
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.8),
        0 0 0 1px rgba(255, 255, 255, 0.02) inset;

    /* Enhanced transition properties */
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px) scale(0.98);
    transition:
        opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
        visibility 0.3s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);

    z-index: 1000;
    margin-top: 1rem;
}

/* Show the submenu reliably on hover of the parent LI */
.main-navigation li:hover>.sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.sub-menu li {
    width: 100%;
    margin-bottom: 0.75rem;
}

.sub-menu li:last-child {
    margin-bottom: 0;
}

.sub-menu a {
    color: var(--bf-text-secondary);
    font-family: var(--bf-font-mono);
    font-size: 0.8rem;
    text-transform: none;
    /* Make sub-items easier to read */
    letter-spacing: 0.05em;
    padding: 0.5rem;
    display: block;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.sub-menu a:hover {
    color: var(--bf-text-primary);
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(5px);
}

/* Invisible bridge so mouse doesn't fall off during gap */
.main-navigation li>a::after {
    content: '';
    position: absolute;
    bottom: -1.5rem;
    /* bridge the gap to the submenu */
    left: 0;
    width: 100%;
    height: 1.5rem;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.bf-header-search {
    position: relative;
    display: flex;
    align-items: center;
}

.bf-header-search-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--bf-text-primary);
    padding: 0.4rem 1rem 0.4rem 2.5rem;
    border-radius: 20px;
    font-family: var(--bf-font-mono);
    font-size: 0.75rem;
    width: 180px;
    transition: all var(--bf-transition);
}

.bf-header-search-input:focus {
    width: 220px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    border-color: var(--bf-accent);
}

.bf-search-icon {
    position: absolute;
    left: 10px;
    color: var(--bf-text-secondary);
}

#theme-toggle {
    background: none;
    border: none;
    color: var(--bf-text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    transition: color var(--bf-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

#theme-toggle:hover {
    color: var(--bf-accent);
}

#theme-toggle svg {
    width: 18px;
    height: 18px;
}

.custom-logo {
    transition: all var(--bf-transition);
    height: 100%;
    /* Scale to fit the container bounds */
    width: auto;
    object-fit: contain;
    object-position: left center;
}

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Stop massive overflow */
.site-branding img {
    max-height: 100%;
}

/* --- Mobile Navigation Restyling --- */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--bf-text-primary);
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    /* Keep above the overlay */
}

.menu-toggle svg {
    transition: transform var(--bf-transition);
}

@media (max-width: 900px) {
    .menu-toggle {
        display: block;
    }

    /* Hide search box on tiny mobile or reformat it */
    .bf-header-search {
        display: none;
    }

    .main-navigation {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        /* Full screen overlay */
        background: var(--bf-bg-glass);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        z-index: 1000;

        /* Center the links */
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;

        /* Hide by default using opacity and pointer events */
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .main-navigation.toggled {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .main-navigation ul {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .main-navigation a {
        font-size: 1.25rem;
        padding: 1rem;
    }

    /* Mobile Submenu Behavior */
    .main-navigation li>a::after {
        display: none;
        /* remove invisible bridge */
    }

    .sub-menu {
        position: static;
        background: none !important;
        border: none;
        box-shadow: none;
        backdrop-filter: none;
        padding: 0;
        margin-top: 0.5rem;
        display: none;
        /* hidden by default on mobile instead of hover */
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    /* Native mobile tap shows the child items */
    .main-navigation li:hover>.sub-menu,
    .main-navigation li.focus>.sub-menu {
        display: block;
    }

    .sub-menu a {
        font-size: 1rem;
        color: var(--bf-text-secondary);
    }
}