<?php
if ( ! defined( 'ABSPATH' ) ) { exit; }

/**
 * Ensure a few core theme_mods never get stuck as empty strings.
 * (If a theme_mod exists but is '', WP treats it as a real value and hides the default in Customizer.)
 */
add_action( 'after_setup_theme', function() {
    $defaults = [
        'bongoto_color_site_bg'   => '#ffffff',
        'bongoto_color_header_bg' => '#ffffff',
        'bongoto_color_footer_bg' => '#111111',
    ];

    foreach ( $defaults as $k => $fallback ) {
        $v = get_theme_mod( $k, null );
        if ( $v === '' ) {
            remove_theme_mod( $k );
        }
        if ( get_theme_mod( $k, '' ) === '' ) {
            // still empty or missing
            set_theme_mod( $k, $fallback );
        }
    }
}, 20 );

/**
 * Build the CSS string (variables + selector bindings).
 */
function bongoto_wc_build_colors_css() : string {
    $get = function( string $id, string $fallback ) : string {
        $v = get_theme_mod( $id, $fallback );
        return ( is_string( $v ) && $v !== '' ) ? $v : $fallback;
    };

    // Get primary key, falling back to legacy key when primary is empty.
    $getm = function( string $primary, string $legacy, string $default ) use ( $get ) : string {
        $v = $get( $primary, '' );
        if ( is_string( $v ) && trim( $v ) !== '' ) {
            return $v;
        }
        $v2 = $get( $legacy, '' );
        if ( is_string( $v2 ) && trim( $v2 ) !== '' ) {
            return $v2;
        }
        return $default;
    };

    $darken_hex = function( string $hex, float $amount = 0.10 ) : string {
        $hex = trim( $hex );
        if ( ! preg_match( '/^#([a-fA-F0-9]{3}|[a-fA-F0-9]{6})$/', $hex ) ) {
            return $hex;
        }
        $h = ltrim( $hex, '#' );
        if ( strlen( $h ) === 3 ) {
            $h = $h[0] . $h[0] . $h[1] . $h[1] . $h[2] . $h[2];
        }
        $r = hexdec( substr( $h, 0, 2 ) );
        $g = hexdec( substr( $h, 2, 2 ) );
        $b = hexdec( substr( $h, 4, 2 ) );

        $r = max( 0, min( 255, (int) round( $r * ( 1 - $amount ) ) ) );
        $g = max( 0, min( 255, (int) round( $g * ( 1 - $amount ) ) ) );
        $b = max( 0, min( 255, (int) round( $b * ( 1 - $amount ) ) ) );

        return sprintf( '#%02x%02x%02x', $r, $g, $b );
    };

    // Base colors (normal state)
    $add_to_cart = $getm('bongoto_color_add_to_cart', 'bongoto_woocommerce_color_add_to_cart', '#111111');
    $buy_now     = $getm('bongoto_color_buy_now', 'bongoto_woocommerce_color_buy_now', '#ff6a00');
    $cart_btn    = $getm('bongoto_color_cart_btn', 'bongoto_woocommerce_color_primary', '#111111');
    $checkout_btn= $getm('bongoto_color_checkout_btn', 'bongoto_woocommerce_color_checkout', '#111111');
    $free_dl     = $getm('bongoto_color_free_download', 'bongoto_woocommerce_color_free_download', '#10b981');
    $download_now= $getm('bongoto_color_download_now', 'bongoto_woocommerce_color_download_now', '#10b981');
    $related_btn = $getm('bongoto_color_related_product', 'bongoto_woocommerce_color_related_product', '#111111');

    // Hover colors: user can set exact hover colors via theme_mods.
    // If empty, we auto-darken the normal color by 10%.
    $add_to_cart_h = $get( 'bongoto_color_add_to_cart_hover', '' );
    $buy_now_h     = $get( 'bongoto_color_buy_now_hover', '' );
    $cart_btn_h    = $get( 'bongoto_color_cart_btn_hover', '' );
    $checkout_btn_h= $get( 'bongoto_color_checkout_btn_hover', '' );
    $free_dl_h     = $get( 'bongoto_color_free_download_hover', '' );
    $download_now_h= $get( 'bongoto_color_download_now_hover', '' );
    $related_btn_h = $get( 'bongoto_color_related_product_hover', '' );

    $vars = [
        '--bgt-site-bg'            => $get('bongoto_color_site_bg', '#ffffff'),
        '--bgt-header-bg'          => $get('bongoto_color_header_bg', '#ffffff'),
        '--bgt-header-top-bg'      => $get('bongoto_color_header_top_bg', '#f7f7f7'),
        '--bgt-topbar-bg'          => $get('bongoto_color_header_top_bg', '#f7f7f7'),
        '--bgt-topbar-text'        => $get('bongoto_color_header_top_text', '#000000'),
        '--bgt-site-title'         => $get('bongoto_color_site_title', '#111111'),
        '--bgt-search-box'         => $get('bongoto_color_search_box', '#ffffff'),
        '--bgt-search-btn'         => $get('bongoto_color_search_btn', '#111111'),
        '--bgt-search-btn-hover'   => ( $get('bongoto_color_search_btn_hover', '') !== '' ) ? $get('bongoto_color_search_btn_hover', '') : $darken_hex( $get('bongoto_color_search_btn', '#111111') ),
        '--bgt-cart-icon'          => $get('bongoto_color_cart_icon', '#111111'),
        '--bgt-cart-icon-hover'     => ( $get('bongoto_color_cart_icon_hover', '') !== '' ) ? $get('bongoto_color_cart_icon_hover', '') : $darken_hex( $get('bongoto_color_cart_icon', '#111111') ),
        '--bgt-cart-count-bg'      => $get('bongoto_color_cart_count_bg', '#ff2d55'),
        '--bgt-cart-count-text'    => $get('bongoto_color_cart_count_text', '#ffffff'),
        '--bgt-account-icon'       => $get('bongoto_color_account_icon', '#111111'),
        '--bgt-account-icon-hover'  => ( $get('bongoto_color_account_icon_hover', '') !== '' ) ? $get('bongoto_color_account_icon_hover', '') : $darken_hex( $get('bongoto_color_account_icon', '#111111') ),
        '--bgt-add-to-cart'        => $add_to_cart,
        '--bgt-buy-now'            => $buy_now,
        '--bgt-cart-btn'           => $cart_btn,
        '--bgt-checkout-btn'       => $checkout_btn,
        '--bgt-free-download'      => $free_dl,
        '--bgt-download-now'       => $download_now,
        '--bgt-related-product'    => $related_btn,
        '--bgt-add-to-cart-hover'  => ( $add_to_cart_h !== '' ) ? $add_to_cart_h : $darken_hex( $add_to_cart ),
        '--bgt-buy-now-hover'      => ( $buy_now_h !== '' ) ? $buy_now_h : $darken_hex( $buy_now ),
        '--bgt-cart-btn-hover'     => ( $cart_btn_h !== '' ) ? $cart_btn_h : $darken_hex( $cart_btn ),
        '--bgt-checkout-btn-hover' => ( $checkout_btn_h !== '' ) ? $checkout_btn_h : $darken_hex( $checkout_btn ),
        '--bgt-free-download-hover'=> ( $free_dl_h !== '' ) ? $free_dl_h : $darken_hex( $free_dl ),
        '--bgt-download-now-hover' => ( $download_now_h !== '' ) ? $download_now_h : $darken_hex( $download_now ),
        '--bgt-related-product-hover'=> ( $related_btn_h !== '' ) ? $related_btn_h : $darken_hex( $related_btn ),
        '--bt-color-add-to-cart'    => $add_to_cart,
        '--bt-color-buy-now'        => $buy_now,
        '--bt-color-checkout'       => $checkout_btn,
        '--bt-color-accent'         => $add_to_cart,
	    '--bt-color-accent-hover'   => ( $add_to_cart_h !== '' ) ? $add_to_cart_h : $darken_hex( $add_to_cart ),
	    '--bt-color-add-to-cart-hover' => ( $add_to_cart_h !== '' ) ? $add_to_cart_h : $darken_hex( $add_to_cart ),
	    '--bt-color-buy-now-hover'     => ( $buy_now_h !== '' ) ? $buy_now_h : $darken_hex( $buy_now ),
	    '--bt-color-checkout-hover'    => ( $checkout_btn_h !== '' ) ? $checkout_btn_h : $darken_hex( $checkout_btn ),

        '--bgt-footer-bg'          => $get('bongoto_color_footer_bg', '#111111'),
        '--bgt-footer-text'        => $get('bongoto_color_footer_text', '#d9d9d9'),
        '--bgt-copyright-bg'       => $get('bongoto_color_copyright_bg', '#0b0b0b'),
        '--bgt-copyright-text'     => $get('bongoto_color_copyright_text', '#d9d9d9'),
    ];

    $css = ":root{";
    foreach ( $vars as $k => $v ) {
        $css .= $k . ":" . esc_html( $v ) . ";";
    }
    $css .= "}";

    // Base + core colors
    $css .= "body{background:var(--bgt-site-bg)!important;}";

    // Header backgrounds
    $css .= ".bt-header, .bt-header-inner, header.site-header, .site-header{background:var(--bgt-header-bg)!important;}";
    $css .= ".bt-header-search--mobile{background:var(--bgt-header-bg)!important;}";
    $css .= ".header-top, .topbar, .site-header .topbar, .bt-header-top{background:var(--bgt-header-top-bg)!important;}";

    // Site title / logo text
    $css .= ".site-title, .site-title a, .bt-logo a, .bt-logo-text, .bt-branding a, .navbar-brand, .logo a{color:var(--bgt-site-title)!important;}";

    // Search box + button
    $css .= "input[type='search'], .search-field, .bt-header-search input[type='search'], .bt-header-search .search-field{background:var(--bgt-search-box)!important;}";
    $css .= "button.search-submit, .search-submit, .bt-header-search button, .bongoto-search-btn, .bt-search-btn{background:var(--bgt-search-btn)!important;border-color:var(--bgt-search-btn)!important;color:#fff!important;}";
    $css .= "button.search-submit:hover, .search-submit:hover, .bt-header-search button:hover, .bongoto-search-btn:hover, .bt-search-btn:hover{background:var(--bgt-search-btn-hover)!important;border-color:var(--bgt-search-btn-hover)!important;color:#fff!important;}";

    // Cart + account icons (support SVG icons AND Dashicons fallback)
    // Some header variants use .bt-cart-icon / .bt-account-icon (so include them too).
    $css .= ".bt-cart-link, .bt-cart-icon, .bt-cart-link i, .bt-cart-icon i, .bt-cart-link .dashicons, .bt-cart-icon .dashicons, .bt-cart-link svg, .bt-cart-icon svg, .bt-cart-link svg *, .bt-cart-icon svg *{color:var(--bgt-cart-icon)!important;fill:var(--bgt-cart-icon)!important;stroke:var(--bgt-cart-icon)!important;}";
    $css .= ".bt-cart-link:hover, .bt-cart-icon:hover, .bt-cart-link:hover i, .bt-cart-icon:hover i, .bt-cart-link:hover .dashicons, .bt-cart-icon:hover .dashicons, .bt-cart-link:hover svg, .bt-cart-icon:hover svg, .bt-cart-link:hover svg *, .bt-cart-icon:hover svg *{color:var(--bgt-cart-icon-hover)!important;fill:var(--bgt-cart-icon-hover)!important;stroke:var(--bgt-cart-icon-hover)!important;}";
    $css .= ".bt-account-link, .bt-account-icon, .bt-account-link i, .bt-account-icon i, .bt-account-link .dashicons, .bt-account-icon .dashicons, .bt-account-link svg, .bt-account-icon svg, .bt-account-link svg *, .bt-account-icon svg *{color:var(--bgt-account-icon)!important;fill:var(--bgt-account-icon)!important;stroke:var(--bgt-account-icon)!important;}";
    $css .= ".bt-account-link:hover, .bt-account-icon:hover, .bt-account-link:hover i, .bt-account-icon:hover i, .bt-account-link:hover .dashicons, .bt-account-icon:hover .dashicons, .bt-account-link:hover svg, .bt-account-icon:hover svg, .bt-account-link:hover svg *, .bt-account-icon:hover svg *{color:var(--bgt-account-icon-hover)!important;fill:var(--bgt-account-icon-hover)!important;stroke:var(--bgt-account-icon-hover)!important;}";

    // Cart count badge
    $css .= ".bt-cart-count, .cart-count, .mini-cart-count{background:var(--bgt-cart-count-bg)!important;color:var(--bgt-cart-count-text)!important;}";

    // Bridge icon variables for components that use internal tokens (cart.css / header styles).
    $css .= ".bt-header-cart{--bt-cart-color:var(--bgt-cart-icon);--bt-cart-accent:var(--bgt-cart-icon-hover);}";
    $css .= ".bt-header-account .bt-account-link{color:var(--bgt-account-icon)!important;}";
    $css .= ".bt-header-account .bt-account-link:hover{color:var(--bgt-account-icon-hover)!important;}";

    // Buttons - Add to cart / Buy now / Cart / Checkout
    // Add to cart (shop, home widgets, single product)
    // Buttons - Add to cart / Buy now / Cart / Checkout
    // Add to cart (shop, home widgets, single product) - cover common Woo selectors
            // Single add to cart (only)
    $css .= ".single-product form.cart .single_add_to_cart_button, .single-product form.cart button[name='add-to-cart'], .woocommerce a.button.add_to_cart_button, .woocommerce button.button.add_to_cart_button, .woocommerce a.button.product_type_simple, .woocommerce button.button.alt.add_to_cart_button, .woocommerce a.button.ajax_add_to_cart, .wp-block-button__link.add_to_cart_button{background:var(--bgt-add-to-cart)!important;border-color:var(--bgt-add-to-cart)!important;color:#fff!important;}";
    $css .= ".single-product form.cart .single_add_to_cart_button:hover, .single-product form.cart button[name='add-to-cart']:hover, .woocommerce a.button.add_to_cart_button:hover, .woocommerce button.button.add_to_cart_button:hover, .woocommerce a.button.product_type_simple:hover, .woocommerce button.button.alt.add_to_cart_button:hover, .woocommerce a.button.ajax_add_to_cart:hover, .wp-block-button__link.add_to_cart_button:hover{background:var(--bgt-add-to-cart-hover)!important;border-color:var(--bgt-add-to-cart-hover)!important;color:#fff!important;}";
    // Primary button defaults across Woo (keep broad coverage, but DO NOT override our special buttons)
    $css .= ".woocommerce ul.products li.product .button:not(.bongoto-buy-now):not(.bt-buy-now-single):not(.bt-buy-now):not(.buy-now):not(.bt-free-download-loop):not(.bt-free-download-single):not(.bt-related-products):not(.bt-related-btn):not(.checkout-button), .woocommerce a.button:not(.bongoto-buy-now):not(.bt-buy-now-single):not(.bt-buy-now):not(.buy-now):not(.bt-free-download-loop):not(.bt-free-download-single):not(.bt-related-products):not(.bt-related-btn):not(.checkout-button), .woocommerce button.button:not(.bongoto-buy-now):not(.bt-buy-now-single):not(.bt-buy-now):not(.buy-now):not(.bt-free-download-loop):not(.bt-free-download-single):not(.bt-related-products):not(.bt-related-btn):not(.checkout-button), .woocommerce input.button, .woocommerce #respond input#submit{background:var(--bgt-add-to-cart)!important;border-color:var(--bgt-add-to-cart)!important;color:#fff!important;}";
    $css .= ".woocommerce ul.products li.product .button:not(.bongoto-buy-now):not(.bt-buy-now-single):not(.bt-buy-now):not(.buy-now):not(.bt-free-download-loop):not(.bt-free-download-single):not(.bt-related-products):not(.bt-related-btn):not(.checkout-button):hover, .woocommerce a.button:not(.bongoto-buy-now):not(.bt-buy-now-single):not(.bt-buy-now):not(.buy-now):not(.bt-free-download-loop):not(.bt-free-download-single):not(.bt-related-products):not(.bt-related-btn):not(.checkout-button):hover, .woocommerce button.button:not(.bongoto-buy-now):not(.bt-buy-now-single):not(.bt-buy-now):not(.buy-now):not(.bt-free-download-loop):not(.bt-free-download-single):not(.bt-related-products):not(.bt-related-btn):not(.checkout-button):hover, .woocommerce input.button:hover, .woocommerce #respond input#submit:hover{background:var(--bgt-add-to-cart-hover)!important;border-color:var(--bgt-add-to-cart-hover)!important;color:#fff!important;}";
// Buy now (theme custom)
    // Buy now (theme custom) - cover different theme classes
    // Buy now (must be stronger than .woocommerce a.button rules)
    $css .= ".woocommerce .bongoto-buy-now, .woocommerce a.bongoto-buy-now, .woocommerce a.button.bongoto-buy-now, .woocommerce button.bongoto-buy-now, .woocommerce .bt-buy-now-single, .woocommerce a.bt-buy-now-single, .woocommerce .bt-buy-now, .woocommerce a.bt-buy-now, .woocommerce .buy-now, .woocommerce a.buy-now, a.button.bt-buy-now, button.bt-buy-now, a.button.buy-now, button.buy-now{background:var(--bgt-buy-now)!important;border-color:var(--bgt-buy-now)!important;color:#fff!important;}";
    $css .= ".woocommerce .bongoto-buy-now:hover, .woocommerce a.bongoto-buy-now:hover, .woocommerce a.button.bongoto-buy-now:hover, .woocommerce button.bongoto-buy-now:hover, .woocommerce .bt-buy-now-single:hover, .woocommerce a.bt-buy-now-single:hover, .woocommerce .bt-buy-now:hover, .woocommerce a.bt-buy-now:hover, .woocommerce .buy-now:hover, .woocommerce a.buy-now:hover, a.button.bt-buy-now:hover, button.bt-buy-now:hover, a.button.buy-now:hover, button.buy-now:hover{background:var(--bgt-buy-now-hover)!important;border-color:var(--bgt-buy-now-hover)!important;color:#fff!important;}";
    // Cart page button: Proceed to Checkout
    // Cart page button: Proceed to Checkout
    // Cart page button: Proceed to Checkout (classic + blocks)
    $css .= ".woocommerce-cart .wc-proceed-to-checkout a.checkout-button, .woocommerce-cart .wc-proceed-to-checkout a.button.checkout-button, .woocommerce-cart .wc-block-cart__submit-container a.wc-block-components-button, .woocommerce-cart .wc-block-cart__submit-container .wc-block-components-button{background:var(--bgt-cart-btn)!important;border-color:var(--bgt-cart-btn)!important;color:#fff!important;}";
    $css .= ".woocommerce-cart .wc-proceed-to-checkout a.checkout-button:hover, .woocommerce-cart .wc-proceed-to-checkout a.button.checkout-button:hover, .woocommerce-cart .wc-block-cart__submit-container a.wc-block-components-button:hover, .woocommerce-cart .wc-block-cart__submit-container .wc-block-components-button:hover{background:var(--bgt-cart-btn-hover)!important;border-color:var(--bgt-cart-btn-hover)!important;color:#fff!important;}";
    // Checkout page button: Place order
    // Checkout page button: Place order
    // Checkout page button: Place order (classic + blocks)
    $css .= ".woocommerce-checkout #place_order, .woocommerce-checkout button#place_order, .woocommerce-checkout input#place_order, .woocommerce-checkout .woocommerce-checkout-payment button.button, .woocommerce-checkout .wc-block-components-checkout-place-order-button, .woocommerce-checkout .wc-block-components-checkout-place-order-button .wc-block-components-button, .wc-block-checkout__actions_row .wc-block-components-button{background:var(--bgt-checkout-btn)!important;border-color:var(--bgt-checkout-btn)!important;color:#fff!important;}";
    // IMPORTANT: override theme rules that use TWO IDs (#payment #place_order)
    $css .= ".woocommerce #payment #place_order:hover, .woocommerce-page #payment #place_order:hover, .woocommerce-checkout #place_order:hover, .woocommerce-checkout button#place_order:hover, .woocommerce-checkout input#place_order:hover, .woocommerce-checkout .woocommerce-checkout-payment button.button:hover, .woocommerce-checkout .wc-block-components-checkout-place-order-button:hover, .woocommerce-checkout .wc-block-components-checkout-place-order-button .wc-block-components-button:hover, .wc-block-checkout__actions_row .wc-block-components-button:hover{background:var(--bgt-checkout-btn-hover)!important;border-color:var(--bgt-checkout-btn-hover)!important;color:#fff!important;}";

    // Checkout button (cart page) hover (override theme rule .woocommerce a.checkout-button)
    $css .= ".woocommerce a.checkout-button:hover, .woocommerce button.checkout-button:hover{background:var(--bgt-cart-btn-hover)!important;border-color:var(--bgt-cart-btn-hover)!important;color:#fff!important;}";
    // Mini cart buttons
    $css .= ".woocommerce-mini-cart__buttons a.button.wc-forward{background:var(--bgt-cart-btn)!important;border-color:var(--bgt-cart-btn)!important;color:#fff!important;}";
    $css .= ".woocommerce-mini-cart__buttons a.button.wc-forward:hover{background:var(--bgt-cart-btn-hover)!important;border-color:var(--bgt-cart-btn-hover)!important;color:#fff!important;}";
    $css .= ".woocommerce-mini-cart__buttons a.checkout{background:var(--bgt-checkout-btn)!important;border-color:var(--bgt-checkout-btn)!important;color:#fff!important;}";
    $css .= ".woocommerce-mini-cart__buttons a.checkout:hover{background:var(--bgt-checkout-btn-hover)!important;border-color:var(--bgt-checkout-btn-hover)!important;color:#fff!important;}";

    // Footer (ONLY site footer; avoid styling <footer class='entry-footer'> in posts)
    $css .= ".site-footer, footer.site-footer, #colophon, .bt-footer{background:var(--bgt-footer-bg)!important;color:var(--bgt-footer-text)!important;}";
    $css .= ".site-footer a, footer.site-footer a, #colophon a, .bt-footer a{color:var(--bgt-footer-text)!important;}";

    // Fix blog/meta footer black bars (because main.css styles all <footer>)
    $css .= "footer.entry-footer{background:transparent!important;color:inherit!important;padding:0!important;}";
    $css .= "footer.entry-footer .cat-links, footer.entry-footer .tags-links{background:transparent!important;}";
    $css .= ".site-main.section{padding-bottom:var(--bt-space-10)!important;}";
    $css .= "body.page .site-main.section{padding-bottom:var(--bt-space-10)!important;}";
    $css .= "body.single .site-main.section{padding-bottom:var(--bt-space-10)!important;}";

    // Copyright bar (full section)
    $css .= ".bt-footer-copyright,.footer-credits{background:var(--bgt-copyright-bg)!important;}";
    $css .= ".site-footer{padding-bottom:0!important;}";
    $css .= ".footer-credits{margin:0!important;padding:12px 0!important;}";
    $css .= ".footer-credits .container{padding-top:0!important;padding-bottom:0!important;background:transparent!important;}";
    $css .= ".footer-credits, .footer-credits *{color:var(--bgt-copyright-text)!important;}";
    $css .= ".footer-credits .container, .bt-footer-copyright-wrap{background:transparent!important;}";

    // Free / download / related buttons
    // NOTE: Use very broad selectors + `background` (not background-color) because other CSS uses `background:`.
    $css .= ".bt-free-download-loop, a.bt-free-download-loop, .woocommerce a.bt-free-download-loop, .woocommerce a.button.bt-free-download-loop, .woocommerce ul.products li.product a.button.bt-free-download-loop{background:var(--bgt-free-download)!important;border-color:var(--bgt-free-download)!important;color:#fff!important;}";
    $css .= ".bt-free-download-loop:hover, a.bt-free-download-loop:hover, .woocommerce a.bt-free-download-loop:hover, .woocommerce a.button.bt-free-download-loop:hover, .woocommerce ul.products li.product a.button.bt-free-download-loop:hover{background:var(--bgt-free-download-hover)!important;border-color:var(--bgt-free-download-hover)!important;color:#fff!important;filter:none!important;}";

    $css .= ".bt-free-download-single, a.bt-free-download-single, .woocommerce div.product form.cart .bt-free-download-single, .woocommerce div.product form.cart a.bt-free-download-single{background:var(--bgt-download-now)!important;border-color:var(--bgt-download-now)!important;color:#fff!important;}";
    $css .= ".bt-free-download-single:hover, a.bt-free-download-single:hover{background:var(--bgt-download-now-hover)!important;border-color:var(--bgt-download-now-hover)!important;color:#fff!important;filter:none!important;}";

    $css .= ".bt-related-products, a.bt-related-products, .bt-related-btn, a.bt-related-btn{background:var(--bgt-related-product)!important;border-color:var(--bgt-related-product)!important;color:#fff!important;}";
    $css .= ".bt-related-products:hover, a.bt-related-products:hover, .bt-related-btn:hover, a.bt-related-btn:hover{background:var(--bgt-related-product-hover)!important;border-color:var(--bgt-related-product-hover)!important;color:#fff!important;filter:none!important;}";

    // Topbar: keep colors driven by CSS vars / presets (no inline styles required).
    $css .= ".bt-topbar,.bt-topbar-wrap,.bt-header-top{background:var(--bgt-topbar-bg,var(--bgt-header-top-bg))!important;color:var(--bgt-topbar-text,#ffffff)!important;}";
    $css .= ".bt-topbar a,.bt-topbar-wrap a,.bt-header-top a{color:inherit!important;}";


    return $css;
}

/**
 * Attach inline CSS to a real stylesheet handle so it is printed AFTER that stylesheet.
 * This avoids edge cases where other styles load after wp_head, and fixes button/hover overrides.
 */
add_action( 'wp_enqueue_scripts', function() {
    $css = bongoto_wc_build_colors_css();
    if ( empty( $css ) ) {
        return;
    }

    // Prefer the Woo stylesheet (covers most button styles).
    if ( wp_style_is( 'bongoto-woocommerce-woo', 'registered' ) || wp_style_is( 'bongoto-woocommerce-woo', 'enqueued' ) ) {
        wp_add_inline_style( 'bongoto-woocommerce-woo', $css );
        return;
    }

    // Fallbacks.
    if ( wp_style_is( 'bongoto-woocommerce-main', 'registered' ) || wp_style_is( 'bongoto-woocommerce-main', 'enqueued' ) ) {
        wp_add_inline_style( 'bongoto-woocommerce-main', $css );
        return;
    }
    if ( wp_style_is( 'bongoto-woocommerce-footer', 'registered' ) || wp_style_is( 'bongoto-woocommerce-footer', 'enqueued' ) ) {
        wp_add_inline_style( 'bongoto-woocommerce-footer', $css );
        return;
    }

    // Absolute fallback: print in head.
    add_action( 'wp_head', function() use ( $css ) {
        echo "<style id='bongoto-wc-colors'>\n" . $css . "\n</style>\n";
    }, 999 );
}, 999 );