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< head >
< meta charset = "UTF-8" >
< meta name = "viewport" content = "width=device-width, initial-scale=1.0" >
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< meta name = "base" content = "{{ config.base_url | safe }}" >
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{# Site title #}
< title > {%- include "partials/title.html" -%}< / title >
{# Favicon #}
{% if config.extra.favicon %}
< link rel = "icon" type = "image/png" href = "{{ get_url(path=config.extra.favicon) }}" / >
{% endif %}
{% if config.extra.favicon_emoji %}
< link rel = icon href = "{{ get_url(path=config.extra.favicon_emoji, trailing_slash=false) | safe }}" >
{% endif %}
{# Feed #}
< link rel = "alternate" type = "application/atom+xml" title = "{{ config.title | safe }}" href = "{{ get_url(path=" atom . xml " ,
trailing_slash=false) }}">
{# CSS #}
{# Load subset of glyphs for header. Avoids flashing issue in Firefox #}
{% if config.extra.custom_subset and config.extra.custom_subset == true %}
< link rel = "stylesheet" href = "{{ get_url(path=" custom_subset . css " , cachebust = true) } } " >
{% elif lang == 'en' %}
< link rel = "stylesheet" href = "{{ get_url(path=" inter_subset_en . css " , cachebust = true ) } } " >
{% elif lang == 'es' %}
< link rel = "stylesheet" href = "{{ get_url(path=" inter_subset_es . css " , cachebust = true ) } } " >
{% endif %}
{# Define array of CSS files to load. main.css is always loaded. #}
{%- set stylesheets = [ "main.css" ] -%}
{# Load extra CSS files from config.toml #}
{%- if config.extra.stylesheets -%}
{%- set stylesheets = stylesheets | concat(with=config.extra.stylesheets) -%}
{%- endif -%}
{# Load extra CSS files from page metadata #}
{%- if page.extra.stylesheets -%}
{%- set stylesheets = stylesheets | concat(with=page.extra.stylesheets) -%}
{%- endif -%}
{# Load extra CSS for custom skin #}
{%- if config.extra.skin -%}
{%- set stylesheets = stylesheets | concat(with='skins/' ~ config.extra.skin ~ '.css') -%}
{%- endif -%}
{# Load all stylesheets #}
{%- for stylesheet in stylesheets %}
< link rel = "stylesheet" href = "{{ get_url(path=stylesheet, cachebust=true) | safe }}" / >
{%- endfor %}
< meta name = "color-scheme" content = "{%- if config.extra.theme_switcher -%}light dark{%- elif config.extra.default_theme -%}{{config.extra.default_theme}}{%- else -%}light{%- endif -%}" / >
{%- if config.extra.browser_theme_color and config.extra.browser_theme_color is iterable -%}
{# Handle array values: theme_color[0] for light mode, theme_color[1] for dark mode #}
< meta name = "theme-color" media = "(prefers-color-scheme: light)" content = "{{ config.extra.browser_theme_color[0] }}" / >
< meta name = "theme-color" media = "(prefers-color-scheme: dark)" content = "{{ config.extra.browser_theme_color[1] }}" / >
{%- elif config.extra.browser_theme_color -%}
{# Handle single value #}
< meta name = "theme-color" content = "{{ config.extra.browser_theme_color }}" / >
{%- endif -%}
{%- if page.description %}
< meta name = "description" content = "{{ page.description }}" / >
< meta property = "og:description" content = "{{ page.description }}" / >
< meta name = "twitter:description" content = "{{ page.description }}" / >
{%- elif section.description %}
< meta name = "description" content = "{{ section.description }}" / >
< meta property = "og:description" content = "{{ section.description }}" / >
{%- elif page.summary %}
< meta name = "description" content = "{{ page.summary | striptags | safe | trim_end_matches(pat=" . " ) } } … " / >
< meta property = "og:description" content = "{{ page.summary | striptags | safe | trim_end_matches(pat=" . " ) } } … " / >
{%- else %}
< meta name = "description" content = "{{ config.description }}" / >
< meta property = "og:description" content = "{{ config.description }}" / >
< meta name = "twitter:description" content = "{{ config.description}}" / >
{%- endif %}
{% if is_404 %}
< meta name = "robots" content = "noindex, follow" / >
{% else %}
<!-- <meta name="robots" content="index, nofollow" /> -->
< meta name = "robots" content = "index, follow" / >
< meta name = "googlebot" content = "index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1" / >
< meta name = "bingbot" content = "index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1" / >
{% endif %}
< meta property = "og:title" content = "{{ page.title | default(value=config.title) | safe }}" / >
< meta property = "og:type" content = "article" / >
{# Image for social media sharing #}
{%- set social_media_card = macros_settings::evaluate_setting_priority(setting="social_media_card", page=page | default(value=""), section=section | default(value=""), default_global_value="") -%}
{% if social_media_card %}
{# Try to construct the image path relative to the current page #}
{% set colocated_path = page.colocated_path | default(value="") %}
{% set file_path = colocated_path ~ social_media_card %}
{# Fetch metadata to verify image existence at the relative path #}
{%- set meta = get_image_metadata(path=file_path, allow_missing=true) -%}
{# Check if relative path exists, else try absolute path #}
{% if meta %}
{% set final_path = file_path %}
{% else %}
{# If the relative path didn't work, try fetching metadata for the absolute path #}
{% set meta = get_image_metadata(path=social_media_card, allow_missing=true) %}
{% if meta %}
{% set final_path = social_media_card %}
{% else %}
{# Throw an error if the image doesn't exist at either path #}
{{ throw(message="Could not get metadata for the specified social media card image in page " ~ page.path ~ ". Attempted relative path: '" ~ file_path ~ "' and absolute path: '" ~ social_media_card ~ "'. Ensure the file exists at one of these locations.") }}
{% endif %}
{% endif %}
{# Generate the social media meta tags #}
< meta property = "og:image" content = "{{ get_url(path=final_path, cachebust=true) }}" / >
< meta property = "og:image:width" content = "{{ meta.width }}" / >
< meta property = "og:image:height" content = "{{ meta.height }}" / >
< meta name = "twitter:image" content = "{{ get_url(path=final_path, cachebust=true) }}" / >
< meta name = "twitter:card" content = "summary_large_image" / >
{% endif %}
{# Add og:locale and hreflang tags for multilingual sites #}
{%- if config.languages | length > 0 and current_url %}
{%- include "partials/multilingual_tags.html" -%}
{%- else -%}
< meta property = "og:locale" content = "{{ macros_translate::translate(key=" date_locale " , default = "en_GB" , language_strings = language_strings) } } " / >
{%- endif %}
{# Set canonical URL #}
{%- if current_url -%}
{%- if page.extra.canonical_url or section.extra.canonical_url -%}
{%- set canonical_url = page.extra.canonical_url | default(value=section.extra.canonical_url) -%}
{%- elif config.extra.base_canonical_url -%}
{%- set canonical_url = current_url | replace(from=config.base_url, to=config.extra.base_canonical_url) -%}
{%- endif -%}
{%- endif -%}
{# Add canonical URL, if set #}
{%- if canonical_url -%}
< link rel = "canonical" href = "{{ canonical_url }}" / >
< meta property = "og:url" content = "{{ canonical_url }}" / >
{%- elif current_url -%}
< meta property = "og:url" content = "{{ current_url }}" / >
< meta name = "twitter:url" content = "{{ current_url }}" / >
{%- endif -%}
< meta property = "og:site_name" content = "{{ config.title }}" >
{%- include "partials/content_security_policy.html" -%}
{%- if config.extra.theme_switcher and config.extra.theme_switcher == true -%}
{# If JavaScript is disabled, hide the button. #}
< noscript > < link rel = "stylesheet" href = "{{ get_url(path='no_js.css') | safe }}" / > < / noscript >
< script type = "text/javascript" src = "{{ get_url(path='js/initializeTheme.min.js') | safe }}" > < / script >
< script defer src = "{{ get_url(path='js/themeSwitcher.min.js', trailing_slash=false) | safe }}" > < / script >
{%- endif -%}
{%- if config.extra.analytics.service -%}
{%- include "partials/analytics.html" -%}
{%- endif -%}
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{# Search #}
{%- if config.build_search_index -%}
{%- if config.search.index_format -%}
{%- set search_index_format = config.search.index_format -%}
{%- elif config.extra.index_format -%}
{# Necessary to support Zola 0.17.X, as it doesn't have access to config.search.index_format #}
{# See: https://github.com/getzola/zola/issues/2165 #}
{%- set search_index_format = config.extra.index_format -%}
{%- else -%}
{%- set search_index_format = "elasticlunr_json" -%}
{%- endif -%}
{%- if search_index_format == "elasticlunr_javascript" -%}
< script defer src = "{{ get_url(path='search_index.' ~ lang ~ '.js', cachebust=true) | safe }}" > < / script >
{%- endif -%}
{# Main search script #}
< script defer src = "{{ get_url(path='js/searchElasticlunr.min.js', cachebust=true) | safe }}" > < / script >
{# Support correct stemming and stop word filtering in non-English search #}
{%- if lang != "en" -%}
< script defer src = "{{ get_url(path='js/lunr/lunrStemmerSupport.min.js') | safe }}" > < / script >
< script defer src = "{{ get_url(path='js/lunr/lunr.' ~ lang ~ '.min.js') | safe }}" > < / script >
{%- endif -%}
{%- endif -%}
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{%- include "partials/custom_header.html" -%}
< / head >
