feat: add multilingual interface support

Dockerfile

@@ -7,8 +7,10 @@ RUN npm ci --omit=dev
 
 COPY server.js ./
 COPY index.html ./
+COPY i18n.js ./
 COPY app.js ./
 COPY styles.css ./
+COPY assets ./assets
 
 ENV HOST=0.0.0.0
 ENV PORT=4173

README.md

@@ -62,3 +62,23 @@ ALLOWED_WMS_ENDPOINTS=https://xpro-viz.jfig.net/geoserver/xpro/wms,https://examp
 - The proxy only allows configured WMS endpoints. By default it allows the XPro GeoServer endpoint.
 - It fetches WMS capabilities with backend HTTP Basic Auth and loads all discovered layers on top of OpenStreetMap.
 - The currently published layers discovered during setup were `parcelas` and `predios`.
+
+## Sharing a map view
+
+The URL updates as the map is moved, zoomed, rotated, or its visible layers or
+base map are changed. An open parcel or building information dialog is included
+too. Copy the URL to share that exact state; opening it restores the same map
+view and selected feature. Invalid or incomplete map parameters fall back to
+the normal default view.
+
+## Translations
+
+The interface selects English, Spanish, or Portuguese from the browser
+preference on the first visit and remembers subsequent changes made in
+Settings. Unsupported languages and missing messages fall back to English.
+
+To add another language:
+
+1. Add a dictionary with the same keys to `TRANSLATIONS` in `i18n.js`.
+2. Translate every value, including accessibility labels and status messages.
+3. Run `npm test` to verify that the dictionary is complete.

assets/brand/xpro-logo-simple.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="51.110092" height="17.62863" viewBox="0 0 51.110092 17.62863">
+  <g transform="translate(-23.402038 -175.28522) matrix(1.729104 0 0 1.729104 -47.763707 -130.17409)">
+    <path fill="#1574c3" d="m 51.662106,186.67656 h 1.857378 v -3.80966 h 0.59653 c 1.423537,0 2.074297,-0.10846 2.630155,-0.4474 0.81345,-0.51518 1.315077,-1.51844 1.315077,-2.67082 0,-1.15239 -0.48807,-2.10142 -1.35575,-2.63016 -0.569415,-0.33894 -1.24729,-0.46095 -2.562367,-0.46095 h -2.481023 z m 1.857378,-5.58569 v -2.65727 h 0.623645 c 0.610087,0 0.894795,0.0271 1.179502,0.0949 0.5423,0.14913 0.86768,0.62365 0.86768,1.24729 0,0.48807 -0.21692,0.86768 -0.610087,1.0846 -0.284708,0.14913 -0.786335,0.23048 -1.51844,0.23048 z m 5.500524,5.58569 h 1.803148 v -4.17571 c -0.04067,-1.11172 0.528742,-1.73536 1.613342,-1.77603 v -1.73536 h -0.135575 c -0.772777,0 -1.152387,0.21692 -1.6269,0.90835 v -0.73211 h -1.654015 z m 7.683272,-7.6871 c -2.182758,0 -3.972348,1.77603 -3.972348,3.93167 0,2.1692 1.78959,3.93168 3.985905,3.93168 2.182758,0 3.999463,-1.76248 3.999463,-3.87745 0,-2.23699 -1.748918,-3.9859 -4.01302,-3.9859 z m 0.01356,1.65401 c 1.206618,0 2.182758,1.01681 2.182758,2.27766 0,1.26085 -0.97614,2.27766 -2.1692,2.27766 -1.220175,0 -2.182758,-1.01681 -2.182758,-2.30477 0,-1.23374 0.97614,-2.25055 2.1692,-2.25055 z"/>
+    <path fill="#f8a621" d="m 41.157585,186.71507 h 2.209873 l 2.33189,-3.45716 2.399677,3.45716 h 2.155643 l -3.47072,-4.98916 3.47072,-5.02983 h -2.155643 l -2.399677,3.49784 -2.33189,-3.49784 h -2.209873 l 3.443605,5.02983 z"/>
+  </g>
+</svg>

assets/icons/area-zoom.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 24 24">
+  <path d="M0 0h24v24H0z" fill="none" />
+  <path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 13v4m-2-2h4m-7 0a5 5 0 1 0 10 0a5 5 0 1 0-10 0m12 7l-3-3M6 18H5a2 2 0 0 1-2-2v-1m0-4v-1m0-4V5a2 2 0 0 1 2-2h1m4 0h1m4 0h1a2 2 0 0 1 2 2v1" />
+</svg>

assets/icons/north-pointer.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 56 56" aria-hidden="true">
+  <path d="M0 0h56v56H0z" fill="none" />
+  <path fill="#cf3d36" d="M11.992 52.375c1.172 0 1.922-.422 3.07-1.547l12.61-12.492c.117-.117.21-.211.328-.211c.117 0 .211.094.328.21l12.61 12.493c1.148 1.125 1.898 1.547 3.07 1.547c1.57 0 2.554-1.219 2.554-2.812c0-.891-.374-1.946-.726-2.907L31.188 6.625c-.75-2.062-1.852-3-3.188-3s-2.437.938-3.187 3L10.164 46.656c-.351.961-.726 2.016-.726 2.907c0 1.593.984 2.812 2.554 2.812m1.617-5.11c-.07-.046-.093-.14-.023-.28L27.766 8.71c.07-.188.14-.258.234-.258s.164.07.234.258l14.18 38.273c.07.141.047.235-.023.282c-.047.023-.141 0-.211-.047L29.172 34.023c-.422-.422-.844-.515-1.172-.515c-.352 0-.75.093-1.172.515L13.82 47.22c-.07.047-.164.07-.21.047" />
+</svg>

i18n.js

@@ -0,0 +1,358 @@
+(function initializeI18n(globalScope) {
+  "use strict";
+
+  const DEFAULT_LANGUAGE = "en";
+  const STORAGE_KEY = "xprov-language";
+  const TRANSLATIONS = {
+    en: {
+      languageName: "English",
+      pageTitle: "XPro Map Visualizer",
+      applicationMessages: "Application messages",
+      openMapControls: "Open map controls",
+      mapControls: "Map controls",
+      closeMapControls: "Close map controls",
+      mapVisualizer: "Map Visualizer",
+      openSettings: "Open settings",
+      closeSettings: "Close settings",
+      settings: "Settings",
+      applySettings: "Apply",
+      useBrowserDefault: "Use browser default",
+      find: "Find",
+      parcelExample: "e.g. 57 or 2669.1",
+      parcelNumber: "Parcel number",
+      findOnMap: "Find on map",
+      layers: "Layers",
+      waitingForConnection: "Waiting for connection.",
+      loadingPublishedLayers: "Loading published layers.",
+      baseMap: "Base map",
+      softMinimal: "Soft minimal",
+      openStreetMap: "OpenStreetMap",
+      satelliteImagery: "Satellite imagery",
+      language: "Language",
+      applicationLanguage: "Application language",
+      mapView: "Map view",
+      closeFeatureInformation: "Close feature information",
+      resetNorth: "Reset map orientation to north",
+      zoomVisibleLayers: "Zoom to visible layers",
+      copyMapLink: "Copy link to this map view",
+      clipboardUnavailable: "Clipboard access is unavailable.",
+      mapLinkCopied: "Link to this map view copied to your clipboard.",
+      mapLinkCopyFailed:
+        "Unable to copy the map link. Please copy the address from your browser.",
+      zoomArea: "Zoom to area",
+      exitAreaZoom: "Exit area zoom (Esc)",
+      compassRequiresHttps: "Device compass requires HTTPS; HTTP works only on localhost.",
+      compassUnavailable: "Device compass is unavailable on this device.",
+      compassPermissionDenied: "Device compass permission was not granted.",
+      compassOn: "Device compass orientation is on.",
+      compassStartFailed: "Unable to start the device compass.",
+      compassOff: "Device compass orientation is off.",
+      compassTurnOff: "Turn off device compass orientation",
+      compassAlign: "Align map with device compass",
+      dismissMessage: "Dismiss message",
+      enterParcel: "Enter a parcel number to search.",
+      searchingParcel: "Searching for parcel…",
+      searchFailedStatus: "Parcel search failed (status {status}).",
+      noParcelFound: "No parcel found with number “{parcelNumber}”.",
+      foundParcel: "Found parcel {parcelNumber}.",
+      foundParcels: "Found {count} parcels matching {parcelNumber}.",
+      parcelSearchFailed: "Unable to search for that parcel.",
+      loadingWmsLayers: "Loading WMS layers…",
+      wmsLoadFailed: "Unable to load the WMS service.",
+      geoserverConnectionFailed: "GeoServer connection failed (status {status}).",
+      noPublishedLayers: "No published layers were returned by the service.",
+      selectLayerToZoom: "Select a layer with a published extent to zoom to it.",
+      parcel: "Parcel",
+      building: "Building",
+      area: "Area",
+      areaUnavailable: "Area unavailable",
+      inhabited: "Inhabited",
+      viewCorrespondingBuilding: "View corresponding building",
+      associatedParcels: "Associated parcels",
+      viewParcel: "View parcel {parcelNumber}",
+      parcelWithNumber: "Parcel {parcelNumber}",
+      unavailable: "Unavailable",
+      noAssociatedParcels: "No associated parcels were found.",
+      zoomIn: "Zoom in",
+      zoomOut: "Zoom out",
+      attribution: "Attributions",
+      softAttribution:
+        '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors © <a href="https://carto.com/attributions">CARTO</a>',
+      satelliteAttribution:
+        'Tiles © <a href="https://www.esri.com/en-us/legal/terms/full-master-agreement">Esri</a> — Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community',
+    },
+    es: {
+      languageName: "Español",
+      pageTitle: "Visualizador de Mapas XPro",
+      applicationMessages: "Mensajes de la aplicación",
+      openMapControls: "Abrir controles del mapa",
+      mapControls: "Controles del mapa",
+      closeMapControls: "Cerrar controles del mapa",
+      mapVisualizer: "Visualizador de Mapas",
+      openSettings: "Abrir configuración",
+      closeSettings: "Cerrar configuración",
+      settings: "Configuración",
+      applySettings: "Aplicar",
+      useBrowserDefault: "Usar el idioma predeterminado del navegador",
+      find: "Buscar",
+      parcelExample: "p. ej., 57 o 2669.1",
+      parcelNumber: "Número de parcela",
+      findOnMap: "Localizar en el mapa",
+      layers: "Capas",
+      waitingForConnection: "Esperando conexión.",
+      loadingPublishedLayers: "Cargando capas publicadas.",
+      baseMap: "Mapa base",
+      softMinimal: "Minimalista suave",
+      openStreetMap: "OpenStreetMap",
+      satelliteImagery: "Imágenes por satélite",
+      language: "Idioma",
+      applicationLanguage: "Idioma de la aplicación",
+      mapView: "Vista del mapa",
+      closeFeatureInformation: "Cerrar información del elemento",
+      resetNorth: "Restablecer la orientación del mapa hacia el norte",
+      zoomVisibleLayers: "Ajustar a las capas visibles",
+      copyMapLink: "Copiar enlace a esta vista del mapa",
+      clipboardUnavailable: "El acceso al portapapeles no está disponible.",
+      mapLinkCopied: "El enlace a esta vista se ha copiado al portapapeles.",
+      mapLinkCopyFailed:
+        "No se pudo copiar el enlace. Copie la dirección desde el navegador.",
+      zoomArea: "Ampliar un área",
+      exitAreaZoom: "Salir de la ampliación de área (Esc)",
+      compassRequiresHttps:
+        "La brújula del dispositivo requiere HTTPS; HTTP solo funciona en localhost.",
+      compassUnavailable: "La brújula no está disponible en este dispositivo.",
+      compassPermissionDenied: "No se concedió permiso para usar la brújula.",
+      compassOn: "La orientación mediante la brújula está activada.",
+      compassStartFailed: "No se pudo iniciar la brújula del dispositivo.",
+      compassOff: "La orientación mediante la brújula está desactivada.",
+      compassTurnOff: "Desactivar la orientación mediante la brújula",
+      compassAlign: "Alinear el mapa con la brújula",
+      dismissMessage: "Descartar mensaje",
+      enterParcel: "Introduzca un número de parcela para buscar.",
+      searchingParcel: "Buscando la parcela…",
+      searchFailedStatus: "La búsqueda de la parcela falló (estado {status}).",
+      noParcelFound: "No se encontró la parcela con el número «{parcelNumber}».",
+      foundParcel: "Se encontró la parcela {parcelNumber}.",
+      foundParcels: "Se encontraron {count} parcelas que coinciden con {parcelNumber}.",
+      parcelSearchFailed: "No se pudo buscar esa parcela.",
+      loadingWmsLayers: "Cargando capas WMS…",
+      wmsLoadFailed: "No se pudo cargar el servicio WMS.",
+      geoserverConnectionFailed: "La conexión con GeoServer falló (estado {status}).",
+      noPublishedLayers: "El servicio no devolvió ninguna capa publicada.",
+      selectLayerToZoom: "Seleccione una capa con extensión publicada para encuadrarla.",
+      parcel: "Parcela",
+      building: "Edificio",
+      area: "Área",
+      areaUnavailable: "Área no disponible",
+      inhabited: "Habitada",
+      viewCorrespondingBuilding: "Ver el edificio correspondiente",
+      associatedParcels: "Parcelas asociadas",
+      viewParcel: "Ver parcela {parcelNumber}",
+      parcelWithNumber: "Parcela {parcelNumber}",
+      unavailable: "No disponible",
+      noAssociatedParcels: "No se encontraron parcelas asociadas.",
+      zoomIn: "Acercar",
+      zoomOut: "Alejar",
+      attribution: "Atribuciones",
+      softAttribution:
+        '© Colaboradores de <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> © <a href="https://carto.com/attributions">CARTO</a>',
+      satelliteAttribution:
+        'Mosaicos © <a href="https://www.esri.com/en-us/legal/terms/full-master-agreement">Esri</a> — Fuente: Esri, Maxar, Earthstar Geographics y la comunidad de usuarios de SIG',
+    },
+    "pt-PT": {
+      languageName: "Português",
+      pageTitle: "Visualizador de Mapas XPro",
+      applicationMessages: "Mensagens da aplicação",
+      openMapControls: "Abrir controlos do mapa",
+      mapControls: "Controlos do mapa",
+      closeMapControls: "Fechar controlos do mapa",
+      mapVisualizer: "Visualizador de Mapas",
+      openSettings: "Abrir definições",
+      closeSettings: "Fechar definições",
+      settings: "Definições",
+      applySettings: "Aplicar",
+      useBrowserDefault: "Usar predefinição do navegador",
+      find: "Pesquisar",
+      parcelExample: "p. ex. 57 ou 2669.1",
+      parcelNumber: "Número da parcela",
+      findOnMap: "Localizar no mapa",
+      layers: "Camadas",
+      waitingForConnection: "A aguardar ligação.",
+      loadingPublishedLayers: "A carregar camadas publicadas.",
+      baseMap: "Mapa base",
+      softMinimal: "Minimalista suave",
+      openStreetMap: "OpenStreetMap",
+      satelliteImagery: "Imagem de satélite",
+      language: "Idioma",
+      applicationLanguage: "Idioma da aplicação",
+      mapView: "Vista do mapa",
+      closeFeatureInformation: "Fechar informação do elemento",
+      resetNorth: "Repor a orientação do mapa para norte",
+      zoomVisibleLayers: "Ajustar às camadas visíveis",
+      copyMapLink: "Copiar ligação para esta vista do mapa",
+      clipboardUnavailable: "O acesso à área de transferência não está disponível.",
+      mapLinkCopied: "A ligação para esta vista foi copiada para a área de transferência.",
+      mapLinkCopyFailed:
+        "Não foi possível copiar a ligação. Copie o endereço a partir do navegador.",
+      zoomArea: "Ampliar uma área",
+      exitAreaZoom: "Sair da ampliação de área (Esc)",
+      compassRequiresHttps:
+        "A bússola do dispositivo requer HTTPS; HTTP funciona apenas em localhost.",
+      compassUnavailable: "A bússola não está disponível neste dispositivo.",
+      compassPermissionDenied: "A permissão para usar a bússola não foi concedida.",
+      compassOn: "A orientação pela bússola está ativa.",
+      compassStartFailed: "Não foi possível iniciar a bússola do dispositivo.",
+      compassOff: "A orientação pela bússola está desativada.",
+      compassTurnOff: "Desativar orientação pela bússola",
+      compassAlign: "Alinhar mapa com a bússola",
+      dismissMessage: "Dispensar mensagem",
+      enterParcel: "Introduza um número de parcela para pesquisar.",
+      searchingParcel: "A pesquisar a parcela…",
+      searchFailedStatus: "A pesquisa da parcela falhou (estado {status}).",
+      noParcelFound: "Não foi encontrada a parcela com o número “{parcelNumber}”.",
+      foundParcel: "Parcela {parcelNumber} encontrada.",
+      foundParcels: "Foram encontradas {count} parcelas correspondentes a {parcelNumber}.",
+      parcelSearchFailed: "Não foi possível pesquisar essa parcela.",
+      loadingWmsLayers: "A carregar camadas WMS…",
+      wmsLoadFailed: "Não foi possível carregar o serviço WMS.",
+      geoserverConnectionFailed: "A ligação ao GeoServer falhou (estado {status}).",
+      noPublishedLayers: "O serviço não devolveu camadas publicadas.",
+      selectLayerToZoom: "Selecione uma camada com extensão publicada para a enquadrar.",
+      parcel: "Parcela",
+      building: "Prédio",
+      area: "Área",
+      areaUnavailable: "Área indisponível",
+      inhabited: "Habitada",
+      viewCorrespondingBuilding: "Ver prédio correspondente",
+      associatedParcels: "Parcelas associadas",
+      viewParcel: "Ver parcela {parcelNumber}",
+      parcelWithNumber: "Parcela {parcelNumber}",
+      unavailable: "Indisponível",
+      noAssociatedParcels: "Não foram encontradas parcelas associadas.",
+      zoomIn: "Ampliar",
+      zoomOut: "Reduzir",
+      attribution: "Atribuições",
+      softAttribution:
+        '© Colaboradores do <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> © <a href="https://carto.com/attributions">CARTO</a>',
+      satelliteAttribution:
+        'Mosaicos © <a href="https://www.esri.com/en-us/legal/terms/full-master-agreement">Esri</a> — Fonte: Esri, Maxar, Earthstar Geographics e comunidade de utilizadores de SIG',
+    },
+  };
+
+  function normalizeLanguage(language) {
+    if (typeof language !== "string") {
+      return null;
+    }
+
+    const normalized = language.replace("_", "-").toLowerCase();
+    return Object.keys(TRANSLATIONS).find((candidate) => {
+      const candidateNormalized = candidate.toLowerCase();
+      return candidateNormalized === normalized || candidateNormalized.split("-")[0] === normalized.split("-")[0];
+    }) || null;
+  }
+
+  function readStoredLanguage(storage) {
+    try {
+      return normalizeLanguage(storage?.getItem(STORAGE_KEY));
+    } catch {
+      return null;
+    }
+  }
+
+  function detectLanguage({ storage, languages = [] } = {}) {
+    const storedLanguage = readStoredLanguage(storage);
+    if (storedLanguage) {
+      return storedLanguage;
+    }
+
+    for (const language of languages) {
+      const supportedLanguage = normalizeLanguage(language);
+      if (supportedLanguage) {
+        return supportedLanguage;
+      }
+    }
+
+    return DEFAULT_LANGUAGE;
+  }
+
+  function detectBrowserLanguage(languages = []) {
+    for (const language of languages) {
+      const supportedLanguage = normalizeLanguage(language);
+      if (supportedLanguage) {
+        return supportedLanguage;
+      }
+    }
+
+    return DEFAULT_LANGUAGE;
+  }
+
+  function createI18n({
+    storage = globalScope.localStorage,
+    languages = globalScope.navigator?.languages || [globalScope.navigator?.language],
+  } = {}) {
+    const browserLanguage = detectBrowserLanguage(languages);
+    let preference = readStoredLanguage(storage);
+    let language = preference || browserLanguage;
+
+    function translate(key, values = {}) {
+      const template = TRANSLATIONS[language]?.[key]
+        ?? TRANSLATIONS[DEFAULT_LANGUAGE]?.[key]
+        ?? key;
+      return template.replace(/\{(\w+)\}/g, (match, name) =>
+        Object.hasOwn(values, name) ? String(values[name]) : match,
+      );
+    }
+
+    return {
+      get language() {
+        return language;
+      },
+      get locale() {
+        return language;
+      },
+      get preference() {
+        return preference;
+      },
+      get supportedLanguages() {
+        return Object.keys(TRANSLATIONS);
+      },
+      setLanguage(nextLanguage) {
+        const useBrowserDefault = nextLanguage == null || nextLanguage === "browser";
+        preference = useBrowserDefault
+          ? null
+          : normalizeLanguage(nextLanguage) || DEFAULT_LANGUAGE;
+        language = preference || browserLanguage;
+        try {
+          if (preference) {
+            storage?.setItem(STORAGE_KEY, preference);
+          } else {
+            storage?.removeItem(STORAGE_KEY);
+          }
+        } catch {
+          // A blocked storage API must not prevent language selection.
+        }
+        return language;
+      },
+      t: translate,
+      tp(singularKey, pluralKey, count, values = {}) {
+        return translate(count === 1 ? singularKey : pluralKey, { ...values, count });
+      },
+    };
+  }
+
+  const exported = {
+    DEFAULT_LANGUAGE,
+    STORAGE_KEY,
+    TRANSLATIONS,
+    normalizeLanguage,
+    detectLanguage,
+    detectBrowserLanguage,
+    createI18n,
+  };
+
+  if (typeof module !== "undefined" && module.exports) {
+    module.exports = exported;
+  }
+
+  globalScope.XProI18n = exported;
+})(typeof window === "undefined" ? globalThis : window);

index.html

@@ -3,57 +3,173 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>XPro Map Visualizer</title>
+    <title data-i18n="pageTitle">XPro Map Visualizer</title>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,400,0,0" />
     <link rel="stylesheet" href="./vendor/ol.css" />
     <link rel="stylesheet" href="./styles.css" />
   </head>
   <body>
     <div class="app-shell">
-      <aside class="sidebar">
+      <div
-        <div class="brand">
+        id="message-region"
-          <h1>XPro Map Visualizer</h1>
+        class="message-region"
-        </div>
+        aria-label="Application messages"
+        data-i18n-aria-label="applicationMessages"
+        aria-live="polite"
+        aria-relevant="additions"
+      ></div>
+
+      <button
+        id="sidebar-open"
+        class="sidebar-toggle sidebar-open"
+        type="button"
+        aria-controls="sidebar"
+        aria-expanded="true"
+      >
+        <span aria-hidden="true">☰</span>
+        <span class="visually-hidden" data-i18n="openMapControls">Open map controls</span>
+      </button>
+
+      <aside
+        id="sidebar"
+        class="sidebar"
+        aria-label="Map controls"
+        data-i18n-aria-label="mapControls"
+      >
+        <button id="sidebar-close" class="sidebar-toggle sidebar-close" type="button">
+          <span aria-hidden="true">×</span>
+          <span class="visually-hidden" data-i18n="closeMapControls">Close map controls</span>
+        </button>
+        <div class="sidebar-content">
+          <div class="brand">
+            <h1>
+              <img class="brand-logo" src="./assets/brand/xpro-logo-simple.svg" alt="XPro" />
+              <span class="visually-hidden">XPro</span>
+            </h1>
+            <div class="brand-footer">
+              <p class="brand-subtitle" data-i18n="mapVisualizer">Map Visualizer</p>
+              <button
+                id="settings-open"
+                class="settings-open"
+                type="button"
+                aria-label="Open settings"
+                data-i18n-aria-label="openSettings"
+              >
+                <span class="material-symbols-outlined" aria-hidden="true">settings</span>
+              </button>
+            </div>
+          </div>
 
         <section class="panel">
           <div class="panel-heading">
-            <h2>Find parcel</h2>
+            <h2 data-i18n="find">Find</h2>
           </div>
           <form id="parcel-search-form" class="parcel-search-form">
-            <label for="parcel-search-input">
+            <input
-              <span>Parcel number</span>
+              id="parcel-search-input"
-              <input
+              name="parcel"
-                id="parcel-search-input"
+              type="search"
-                name="parcel"
+              inputmode="text"
-                type="search"
+              placeholder="e.g. 57 or 2669.1"
-                inputmode="text"
+              data-i18n-placeholder="parcelExample"
-                placeholder="e.g. 57 or 2669.1"
+              autocomplete="off"
-                autocomplete="off"
+              aria-label="Parcel number"
-                required
+              data-i18n-aria-label="parcelNumber"
-              />
+              required
-            </label>
+            />
-            <button type="submit">Find on map</button>
+            <button type="submit" data-i18n="findOnMap">Find on map</button>
           </form>
           <p id="parcel-search-status" class="status" aria-live="polite"></p>
         </section>
 
         <section class="panel">
           <div class="panel-heading">
-            <h2>Layers</h2>
+            <h2 data-i18n="layers">Layers</h2>
             <span id="layer-count" class="badge">0</span>
           </div>
-          <p id="status" class="status">Waiting for connection.</p>
+          <p id="status" class="status" data-i18n="waitingForConnection">Waiting for connection.</p>
-          <div id="layer-list" class="layer-list empty">
+          <div id="layer-list" class="layer-list empty" data-i18n="loadingPublishedLayers">
             Loading published layers.
           </div>
         </section>
+
+        <section class="panel">
+          <div class="panel-heading">
+            <h2 data-i18n="baseMap">Base map</h2>
+          </div>
+          <div class="background-selector">
+            <select
+              id="background-select"
+              name="background"
+              aria-label="Base map"
+              data-i18n-aria-label="baseMap"
+            >
+              <option value="soft" data-i18n="softMinimal">Soft minimal</option>
+              <option value="openstreetmap" data-i18n="openStreetMap">OpenStreetMap</option>
+              <option value="satellite" data-i18n="satelliteImagery">Satellite imagery</option>
+            </select>
+          </div>
+        </section>
+
+        </div>
       </aside>
 
       <main class="map-wrap">
-        <div id="map" aria-label="Map view"></div>
+        <div id="map" aria-label="Map view" data-i18n-aria-label="mapView"></div>
       </main>
+
+      <div id="feature-modal" class="feature-modal" hidden>
+        <div class="feature-modal-backdrop" data-feature-modal-close></div>
+        <section
+          class="feature-modal-dialog"
+          role="dialog"
+          aria-modal="true"
+          aria-labelledby="feature-modal-title"
+        >
+          <button
+            id="feature-modal-close"
+            class="feature-modal-close"
+            type="button"
+            aria-label="Close feature information"
+            data-i18n-aria-label="closeFeatureInformation"
+          >
+            ×
+          </button>
+          <div id="feature-modal-content"></div>
+        </section>
+      </div>
+
+      <div id="settings-modal" class="settings-modal" hidden>
+        <div class="settings-modal-backdrop" data-settings-modal-close></div>
+        <section
+          class="settings-modal-dialog"
+          role="dialog"
+          aria-modal="true"
+          aria-labelledby="settings-modal-title"
+        >
+          <button
+            id="settings-modal-close"
+            class="settings-modal-close"
+            type="button"
+            aria-label="Close settings"
+            data-i18n-aria-label="closeSettings"
+          >
+            ×
+          </button>
+          <h2 id="settings-modal-title" data-i18n="settings">Settings</h2>
+          <form id="settings-form" class="settings-form">
+            <label for="language-select">
+              <span data-i18n="applicationLanguage">Application language</span>
+              <select id="language-select" name="language"></select>
+            </label>
+            <button type="submit" data-i18n="applySettings">Apply</button>
+          </form>
+        </section>
+      </div>
     </div>
 
     <script src="./vendor/ol.js"></script>
+    <script src="./i18n.js"></script>
     <script src="./app.js"></script>
   </body>
 </html>

package.json

@@ -3,7 +3,8 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "start": "node --env-file-if-exists=.env server.js"
+    "start": "node --env-file-if-exists=.env server.js",
+    "test": "node --test"
   },
   "dependencies": {
     "ol": "10.6.1"

republish.sh

@@ -0,0 +1,69 @@
+#!/bin/sh
+set -eu
+
+script_dir="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
+cd "${script_dir}"
+
+usage() {
+  echo "Usage: $0 [--build]" >&2
+}
+
+build_image=false
+case "${1:-}" in
+  "")
+    ;;
+  --build)
+    build_image=true
+    ;;
+  *)
+    usage
+    exit 2
+    ;;
+esac
+
+if [ "$#" -gt 1 ]; then
+  usage
+  exit 2
+fi
+
+if [ -f "docker-compose.yml" ]; then
+  compose_file="docker-compose.yml"
+elif [ -f "compose.yaml" ]; then
+  compose_file="compose.yaml"
+else
+  echo "No supported Compose file found." >&2
+  exit 1
+fi
+
+compose_backup="${compose_file}.bak"
+
+if [ ! -f "${compose_backup}" ]; then
+  echo "Missing deployment Compose backup: ${compose_backup}" >&2
+  exit 1
+fi
+
+if ! cmp -s "${compose_backup}" "${compose_file}"; then
+  echo "${compose_file} differs from ${compose_backup}; refusing to republish." >&2
+  diff -u "${compose_backup}" "${compose_file}" >&2 || true
+  exit 1
+fi
+
+# Restore the deployment-specific Compose file even if a Git operation fails.
+restore_compose() {
+  cp "${compose_backup}" "${compose_file}"
+}
+trap restore_compose EXIT
+
+git restore -- "${compose_file}"
+git fetch --all --prune
+git pull --ff-only
+
+restore_compose
+trap - EXIT
+
+docker compose down -v
+if [ "${build_image}" = true ]; then
+  docker compose up -d --build
+else
+  docker compose up -d
+fi

styles.css

@@ -1,13 +1,14 @@
 :root {
   color-scheme: light;
   --bg: #f3efe3;
-  --panel: rgba(253, 249, 240, 0.92);
+  --panel: rgba(253, 249, 240, 0.75);
   --panel-border: rgba(92, 73, 49, 0.18);
   --ink: #1f2a2e;
   --muted: #5f6b6f;
   --accent: #1f7a62;
   --accent-strong: #125441;
   --shadow: 0 24px 60px rgba(52, 43, 28, 0.12);
+  --map-tool-size: 42px;
 }
 
 * {
@@ -29,11 +30,113 @@ body {
   min-height: 100vh;
 }
 
-.app-shell {
+.message-region {
+  position: fixed;
+  z-index: 30;
+  top: 24px;
+  left: 50%;
   display: grid;
-  grid-template-columns: minmax(320px, 380px) 1fr;
+  width: min(420px, calc(100vw - 32px));
+  gap: 10px;
+  transform: translateX(-50%);
+  pointer-events: none;
+}
+
+.message {
+  --message-background: #1f7a62;
+  --message-progress: #125441;
+  position: relative;
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  align-items: start;
+  gap: 12px;
+  overflow: hidden;
+  padding: 14px 12px 16px 16px;
+  border: 1px solid rgba(255, 255, 255, 0.4);
+  border-radius: 16px;
+  background: var(--message-background);
+  color: #fff;
+  box-shadow: 0 16px 36px rgba(31, 42, 46, 0.26);
+  pointer-events: auto;
+  animation: message-enter 180ms ease-out;
+}
+
+.message--warning {
+  --message-background: #c76a13;
+  --message-progress: #914605;
+}
+
+.message--error {
+  --message-background: #b9382e;
+  --message-progress: #7f201a;
+}
+
+.message.is-leaving {
+  animation: message-leave 180ms ease-in forwards;
+}
+
+.message-text {
+  margin: 0;
+  font-weight: 650;
+  line-height: 1.35;
+}
+
+.message-dismiss {
+  width: 28px;
+  height: 28px;
+  min-width: 28px;
+  padding: 0;
+  border: 1px solid rgba(255, 255, 255, 0.45);
+  border-radius: 50%;
+  background: transparent;
+  color: inherit;
+  box-shadow: none;
+  font-size: 1.35rem;
+  line-height: 1;
+}
+
+.message-dismiss:hover,
+.message-dismiss:focus-visible {
+  background: rgba(255, 255, 255, 0.18);
+  outline: 2px solid #fff;
+  outline-offset: 2px;
+}
+
+.message-progress {
+  position: absolute;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  height: 4px;
+  background: var(--message-progress);
+  transform-origin: right;
+  animation: message-countdown var(--message-duration) linear forwards;
+}
+
+@keyframes message-enter {
+  from { opacity: 0; transform: translateY(-10px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes message-leave {
+  to { opacity: 0; transform: translateY(-8px); }
+}
+
+@keyframes message-countdown {
+  to { transform: scaleX(0); }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .message,
+  .message.is-leaving,
+  .message-progress {
+    animation-duration: 1ms;
+  }
+}
+
+.app-shell {
+  position: relative;
   min-height: 100vh;
-  gap: 24px;
   padding: 24px;
 }
 
@@ -43,9 +146,80 @@ body {
 }
 
 .sidebar {
+  position: fixed;
+  z-index: 10;
+  top: 24px;
+  bottom: 24px;
+  left: 24px;
+  width: min(266px, calc(100vw - 48px));
   display: flex;
   flex-direction: column;
+  overflow: hidden;
+  padding: 8px;
+  transition: transform 240ms ease;
+  backdrop-filter: blur(3px);
+}
+
+.sidebar-content {
+  display: flex;
+  min-height: 0;
+  flex: 1;
+  flex-direction: column;
   gap: 16px;
+  overflow-y: auto;
+  overscroll-behavior: contain;
+  scrollbar-gutter: stable;
+}
+
+.sidebar-toggle {
+  position: fixed;
+  z-index: 11;
+  display: grid;
+  width: 42px;
+  height: 42px;
+  padding: 0;
+  place-items: center;
+  border: 1px solid var(--panel-border);
+  border-radius: 14px;
+  background: var(--panel);
+  color: var(--ink);
+  font-size: 1.65rem;
+  font-weight: 500;
+  line-height: 1;
+  box-shadow: var(--shadow);
+}
+
+.sidebar-toggle:hover {
+  transform: translateY(-1px);
+}
+
+.sidebar-open {
+  top: 32px;
+  left: 32px;
+  opacity: 0;
+  visibility: hidden;
+  pointer-events: none;
+  transition: opacity 180ms ease;
+}
+
+.sidebar-close {
+  position: absolute;
+  top: 14px;
+  right: 14px;
+}
+
+.sidebar-close span[aria-hidden="true"] {
+  transform: translateY(-1px);
+}
+
+.app-shell.sidebar-is-collapsed .sidebar {
+  transform: translateX(calc(-100% - 24px));
+}
+
+.app-shell.sidebar-is-collapsed .sidebar-open {
+  opacity: 1;
+  visibility: visible;
+  pointer-events: auto;
 }
 
 .brand,
@@ -58,7 +232,68 @@ body {
 }
 
 .brand {
-  padding: 24px;
+  padding: 24px 64px 24px 24px;
+}
+
+.brand-logo {
+  display: block;
+  width: min(100%, 178px);
+  height: auto;
+}
+
+.brand-footer {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  margin-top: 8px;
+  /* Extend through the brand's reserved close-button clearance so the gear
+     and sidebar close controls share the same right-hand axis. */
+  margin-right: -60px;
+}
+
+.brand-subtitle {
+  color: var(--muted);
+  font-size: 1rem;
+  font-weight: 400;
+  letter-spacing: 0.04em;
+}
+
+.settings-open {
+  display: grid;
+  width: 42px;
+  height: 42px;
+  min-width: 42px;
+  padding: 0;
+  place-items: center;
+  border: 1px solid var(--panel-border);
+  border-radius: 50%;
+  background: rgba(255, 255, 255, 0.55);
+  color: var(--ink);
+  box-shadow: none;
+}
+
+.settings-open:hover,
+.settings-open:focus-visible {
+  background: rgba(31, 122, 98, 0.1);
+  outline: 2px solid rgba(31, 122, 98, 0.25);
+  outline-offset: 2px;
+}
+
+.settings-open .material-symbols-outlined {
+  font-size: 1.3rem;
+}
+
+.visually-hidden {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+  border: 0;
 }
 
 h1,
@@ -93,6 +328,10 @@ form.panel {
   width: 100%;
 }
 
+.background-selector {
+  margin-top: 16px;
+}
+
 label {
   display: flex;
   flex-direction: column;
@@ -105,7 +344,8 @@ label span {
   font-weight: 600;
 }
 
-input {
+input,
+select {
   width: 100%;
   padding: 12px 14px;
   border-radius: 14px;
@@ -115,7 +355,8 @@ input {
   font: inherit;
 }
 
-input:focus {
+input:focus,
+select:focus {
   outline: 2px solid rgba(31, 122, 98, 0.18);
   border-color: var(--accent);
 }
@@ -164,6 +405,10 @@ button:disabled {
   color: var(--muted);
 }
 
+.status:empty {
+  display: none;
+}
+
 .status.error {
   color: #9d2e21;
 }
@@ -199,26 +444,17 @@ button:disabled {
   margin-top: 3px;
 }
 
-.layer-meta {
-  display: grid;
-  gap: 3px;
-}
-
 .layer-title {
   font-weight: 700;
 }
 
-.layer-name {
-  color: var(--muted);
-  font-size: 0.9rem;
-}
-
 .map-wrap {
-  position: relative;
+  position: fixed;
+  z-index: 0;
+  inset: 24px;
   overflow: hidden;
   border-radius: 32px;
   box-shadow: var(--shadow);
-  min-height: 70vh;
 }
 
 #map {
@@ -226,12 +462,619 @@ button:disabled {
   inset: 0;
 }
 
+.feature-modal[hidden] {
+  display: none;
+}
+
+.settings-modal[hidden] {
+  display: none;
+}
+
+.feature-modal,
+.settings-modal {
+  position: fixed;
+  z-index: 20;
+  inset: 0;
+  display: grid;
+  padding: 24px;
+  place-items: center;
+}
+
+.feature-modal-backdrop,
+.settings-modal-backdrop {
+  position: absolute;
+  inset: 0;
+  background: rgba(31, 42, 46, 0.35);
+  backdrop-filter: blur(1px);
+}
+
+.settings-modal-dialog {
+  position: relative;
+  width: min(100%, 380px);
+  padding: 28px;
+  border: 1px solid var(--panel-border);
+  border-radius: 24px;
+  background: var(--panel);
+  backdrop-filter: blur(16px);
+  box-shadow: var(--shadow);
+}
+
+.settings-modal-close {
+  position: absolute;
+  top: 12px;
+  right: 12px;
+  display: grid;
+  width: 36px;
+  height: 36px;
+  padding: 0;
+  place-items: center;
+  border: 1px solid var(--panel-border);
+  border-radius: 50%;
+  background: transparent;
+  color: var(--ink);
+  box-shadow: none;
+  font-size: 1.5rem;
+  line-height: 1;
+}
+
+.settings-modal-dialog h2 {
+  padding-right: 44px;
+}
+
+.settings-form {
+  display: grid;
+  gap: 20px;
+  margin-top: 24px;
+}
+
+.feature-modal-dialog {
+  position: relative;
+  width: min(100%, 360px);
+  padding: 28px;
+  border: 1px solid var(--panel-border);
+  border-radius: 24px;
+  background: var(--panel);
+  backdrop-filter: blur(3px);
+  box-shadow: var(--shadow);
+  cursor: grab;
+  touch-action: none;
+}
+
+.feature-modal-dialog.is-dragging {
+  cursor: grabbing;
+  user-select: none;
+}
+
+.feature-modal-close {
+  position: absolute;
+  top: 12px;
+  right: 12px;
+  display: grid;
+  width: 36px;
+  height: 36px;
+  padding: 0;
+  place-items: center;
+  border: 1px solid var(--panel-border);
+  border-radius: 50%;
+  background: transparent;
+  color: var(--ink);
+  box-shadow: none;
+  font-size: 1.5rem;
+  line-height: 1;
+}
+
+.feature-modal-kind {
+  margin-bottom: 6px;
+  color: var(--accent-strong);
+  font-size: 0.85rem;
+  font-weight: 700;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+}
+
+.feature-details {
+  margin: 20px 0 0;
+}
+
+.feature-details div {
+  display: flex;
+  align-items: baseline;
+  justify-content: space-between;
+  gap: 16px;
+  padding: 14px 0;
+  border-top: 1px solid var(--panel-border);
+}
+
+.feature-details dt {
+  color: var(--muted);
+}
+
+.feature-details dd {
+  min-width: 0;
+  margin: 0;
+  font-size: 1.1rem;
+  font-weight: 700;
+  overflow-wrap: anywhere;
+  text-align: right;
+}
+
+.feature-inhabited {
+  margin: 14px 0 0;
+  color: #c62828;
+  font-weight: 700;
+}
+
+.feature-navigation,
+.feature-association {
+  width: 100%;
+  margin-top: 16px;
+}
+
+.feature-associations {
+  margin-top: 20px;
+  border-top: 1px solid var(--panel-border);
+  padding-top: 14px;
+}
+
+.feature-associations h3 {
+  margin: 0;
+  font-size: 1rem;
+}
+
+.feature-associations ul {
+  display: grid;
+  gap: 10px;
+  margin: 12px 0 0;
+  padding: 0;
+  list-style: none;
+}
+
+.feature-association {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 4px 12px;
+  margin: 0;
+  padding: 12px 0;
+  border: 0;
+  border-radius: 0;
+  border-bottom: 1px solid var(--panel-border);
+  background: transparent;
+  color: var(--ink);
+  box-shadow: none;
+  text-align: left;
+}
+
+.feature-association:hover,
+.feature-association:focus-visible {
+  background: rgba(31, 122, 98, 0.08);
+}
+
+.feature-association-label {
+  min-width: 0;
+  font-weight: 700;
+  overflow-wrap: anywhere;
+}
+
+.feature-association-area {
+  color: var(--muted);
+  font-size: 0.9rem;
+  white-space: nowrap;
+}
+
+.feature-association-inhabited {
+  grid-column: 1 / -1;
+  color: #c62828;
+  font-size: 0.9rem;
+  font-weight: 700;
+}
+
+.feature-modal-actions {
+  display: flex;
+  justify-content: flex-end;
+  margin-top: 16px;
+}
+
+.feature-modal-share {
+  display: grid;
+  width: 42px;
+  height: 42px;
+  padding: 0;
+  place-items: center;
+  border-radius: 50%;
+}
+
+.feature-modal-share .material-symbols-outlined {
+  font-size: 1.25rem;
+  line-height: 1;
+}
+
+.map-wrap .ol-zoom {
+  top: 16px;
+  right: 16px;
+  left: auto;
+  overflow: hidden;
+  background: var(--panel);
+  border: 1px solid var(--panel-border);
+  border-radius: 14px;
+  backdrop-filter: blur(16px);
+  box-shadow: var(--shadow);
+}
+
+.map-wrap .ol-zoom button,
+.map-wrap .ol-visible-layers-extent button,
+.map-wrap .ol-share button {
+  width: var(--map-tool-size);
+  height: var(--map-tool-size);
+  margin: 0;
+  background: linear-gradient(135deg, var(--accent) 0%, #2b9a79 100%);
+  color: #fffefb;
+  font-size: 1rem;
+  line-height: 1;
+  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.24);
+}
+
+.map-wrap .ol-zoom button + button {
+  border-top: 1px solid rgba(255, 255, 255, 0.35);
+}
+
+.map-wrap .ol-zoom button:hover,
+.map-wrap .ol-zoom button:focus,
+.map-wrap .ol-visible-layers-extent button:hover,
+.map-wrap .ol-visible-layers-extent button:focus,
+.map-wrap .ol-share button:hover,
+.map-wrap .ol-share button:focus {
+  background: linear-gradient(135deg, var(--accent-strong) 0%, var(--accent) 100%);
+  color: #fff;
+  outline: 2px solid rgba(31, 122, 98, 0.35);
+  outline-offset: -2px;
+}
+
+.map-wrap .ol-visible-layers-extent {
+  top: 108px;
+  right: 16px;
+  left: auto;
+  overflow: hidden;
+  background: var(--panel);
+  border: 1px solid var(--panel-border);
+  border-radius: 14px;
+  backdrop-filter: blur(16px);
+  box-shadow: var(--shadow);
+}
+
+.map-wrap .ol-visible-layers-extent button {
+  font-size: 1.3rem;
+}
+
+.map-wrap .ol-area-zoom {
+  top: 158px;
+  right: 16px;
+  left: auto;
+  overflow: hidden;
+  background: var(--panel);
+  border: 1px solid var(--panel-border);
+  border-radius: 14px;
+  backdrop-filter: blur(16px);
+  box-shadow: var(--shadow);
+}
+
+.map-wrap .ol-area-zoom button {
+  display: grid;
+  width: var(--map-tool-size);
+  height: var(--map-tool-size);
+  margin: 0;
+  padding: 0;
+  place-items: center;
+  background: linear-gradient(135deg, var(--accent) 0%, #2b9a79 100%);
+  color: #fffefb;
+  font-size: 1.3rem;
+  line-height: 1;
+}
+
+.map-wrap .ol-area-zoom button:hover,
+.map-wrap .ol-area-zoom button:focus,
+.map-wrap .ol-area-zoom button[aria-pressed="true"] {
+  background: linear-gradient(135deg, var(--accent-strong) 0%, var(--accent) 100%);
+  color: #fff;
+  outline: 2px solid rgba(31, 122, 98, 0.35);
+  outline-offset: -2px;
+}
+
+.map-wrap .ol-share {
+  top: 208px;
+  right: 16px;
+  left: auto;
+  overflow: hidden;
+  background: var(--panel);
+  border: 1px solid var(--panel-border);
+  border-radius: 14px;
+  backdrop-filter: blur(16px);
+  box-shadow: var(--shadow);
+}
+
+/* When available, keep Share after the device compass in the tool stack. */
+.map-wrap .ol-device-compass ~ .ol-share {
+  top: 258px;
+}
+
+.map-wrap .ol-share button {
+  display: grid;
+  place-items: center;
+}
+
+.map-wrap .ol-share .material-symbols-outlined {
+  font-size: 1.25rem;
+  line-height: 1;
+}
+
+.area-zoom-icon {
+  display: block;
+  width: 1.2em;
+  height: 1.2em;
+  filter: brightness(0) invert(1);
+}
+
+.map-wrap .ol-viewport.area-zoom-is-active {
+  cursor: crosshair;
+}
+
+.map-wrap .ol-area-zoom-box {
+  border-color: var(--accent);
+  background: rgba(31, 122, 98, 0.16);
+}
+
+.map-wrap .ol-device-compass {
+  top: 208px;
+  right: 16px;
+  left: auto;
+  overflow: hidden;
+  background: var(--panel);
+  border: 1px solid var(--panel-border);
+  border-radius: 14px;
+  backdrop-filter: blur(16px);
+  box-shadow: var(--shadow);
+}
+
+.map-wrap .ol-device-compass button {
+  display: grid;
+  width: var(--map-tool-size);
+  height: var(--map-tool-size);
+  margin: 0;
+  padding: 0;
+  place-items: center;
+  background: linear-gradient(135deg, var(--accent) 0%, #2b9a79 100%);
+  color: #fffefb;
+  font-size: 1.3rem;
+  line-height: 1;
+}
+
+.map-wrap .ol-device-compass button:hover,
+.map-wrap .ol-device-compass button:focus {
+  background: linear-gradient(135deg, var(--accent-strong) 0%, var(--accent) 100%);
+  color: #fff;
+  outline: 2px solid rgba(31, 122, 98, 0.35);
+  outline-offset: -2px;
+}
+
+/* Compass orientation stays visibly engaged after the pointer leaves the
+   control. The inset high-contrast ring and explicit label do not rely on
+   the green active colour alone. */
+.map-wrap .ol-device-compass button[aria-pressed="true"] {
+  position: relative;
+  border: 3px solid #fffefb;
+  background: linear-gradient(135deg, var(--accent-strong) 0%, var(--accent) 100%);
+  color: #fff;
+  outline: 2px solid #1f2a2e;
+  outline-offset: -5px;
+}
+
+.map-wrap .ol-device-compass button[aria-pressed="true"]::after {
+  position: absolute;
+  top: 2px;
+  right: 2px;
+  padding: 1px 2px;
+  border-radius: 3px;
+  background: #fffefb;
+  color: #1f2a2e;
+  content: "ON";
+  font-size: 0.45rem;
+  font-weight: 800;
+  letter-spacing: 0.02em;
+  line-height: 1;
+}
+
+.device-compass-icon {
+  display: block;
+  width: 1.2em;
+  height: 1.2em;
+}
+
+/* OpenLayers hides this control while the view is north-up. */
+.map-wrap .ol-rotate {
+  top: auto;
+  right: 16px;
+  bottom: 16px;
+  left: auto;
+  padding: 0;
+  background: transparent;
+}
+
+.map-wrap .ol-rotate button {
+  display: grid;
+  width: 42px;
+  height: 42px;
+  margin: 0;
+  padding: 0;
+  place-items: center;
+  border-radius: 50%;
+  background: rgba(255, 255, 255, 0.9);
+  line-height: 1;
+  box-shadow: 0 10px 24px rgba(52, 43, 28, 0.2);
+}
+
+.north-pointer-icon {
+  display: block;
+  width: 26px;
+  height: 26px;
+  transform-origin: center;
+}
+
+.map-wrap .ol-rotate button:hover {
+  background: #fff;
+  transform: translateY(-1px);
+}
+
 @media (max-width: 920px) {
   .app-shell {
-    grid-template-columns: 1fr;
+    padding: 16px;
   }
 
   .map-wrap {
-    min-height: 62vh;
+    inset: 16px;
+    border-radius: 24px;
+  }
+
+  .map-wrap .ol-zoom {
+    top: 12px;
+    right: 12px;
+  }
+
+  .map-wrap .ol-visible-layers-extent {
+    top: 104px;
+    right: 12px;
+  }
+
+  .map-wrap .ol-area-zoom {
+    top: 154px;
+    right: 12px;
+  }
+
+  .map-wrap .ol-share {
+    top: 204px;
+    right: 12px;
+  }
+
+  .map-wrap .ol-device-compass ~ .ol-share {
+    top: 254px;
+  }
+
+  .map-wrap .ol-device-compass {
+    top: 204px;
+    right: 12px;
+  }
+
+  .map-wrap .ol-rotate {
+    right: 12px;
+    bottom: 12px;
+  }
+
+  .sidebar {
+    top: 16px;
+    bottom: 16px;
+    left: 16px;
+    width: min(266px, calc(100vw - 32px));
+  }
+
+  .sidebar-content {
+    gap: 10px;
+    padding-right: 2px;
+  }
+
+  .sidebar-close {
+    top: 12px;
+    right: 12px;
+  }
+
+  .brand {
+    padding: 16px 58px 14px 16px;
+    border-radius: 18px;
+  }
+
+  .brand-logo {
+    width: min(100%, 136px);
+  }
+
+  .brand-subtitle {
+    margin-top: 4px;
+    font-size: 0.85rem;
+  }
+
+  .panel {
+    padding: 14px;
+    border-radius: 18px;
+  }
+
+  .panel-heading {
+    gap: 8px;
+  }
+
+  .parcel-search-form,
+  .background-selector,
+  .layer-list {
+    margin-top: 10px;
+  }
+
+  .parcel-search-form {
+    gap: 8px;
+  }
+
+  .status {
+    margin-top: 8px;
+    font-size: 0.9rem;
+  }
+
+  input,
+  select {
+    padding: 10px 12px;
+  }
+
+  button {
+    padding: 11px 14px;
+  }
+
+  .layer-list {
+    gap: 8px;
+  }
+
+  .layer-item {
+    gap: 10px;
+    padding: 10px;
+    border-radius: 14px;
+  }
+
+  .sidebar-open {
+    top: 24px;
+    left: 24px;
+  }
+
+  .app-shell.sidebar-is-collapsed .sidebar {
+    transform: translateX(calc(-100% - 16px));
+  }
+}
+
+@media (max-width: 920px) and (max-height: 700px) {
+  .sidebar-content {
+    gap: 8px;
+  }
+
+  .brand {
+    padding-top: 12px;
+    padding-bottom: 10px;
+  }
+
+  .brand-logo {
+    width: min(100%, 112px);
+  }
+
+  .brand-subtitle {
+    display: none;
+  }
+
+  .panel {
+    padding: 12px;
+  }
+
+  .panel h2 {
+    font-size: 1.1rem;
   }
 }

test/deployment.test.js

@@ -0,0 +1,24 @@
+const test = require("node:test");
+const assert = require("node:assert/strict");
+const fs = require("node:fs");
+const path = require("node:path");
+
+const root = path.resolve(__dirname, "..");
+
+test("the Docker image includes every application script referenced by the page", () => {
+  const html = fs.readFileSync(path.join(root, "index.html"), "utf8");
+  const dockerfile = fs.readFileSync(path.join(root, "Dockerfile"), "utf8");
+  const applicationScripts = [...html.matchAll(/<script src="\.\/([^"]+\.js)"/g)]
+    .map((match) => match[1])
+    .filter((scriptPath) => !scriptPath.startsWith("vendor/"));
+
+  assert.ok(applicationScripts.length > 0);
+  applicationScripts.forEach((scriptPath) => {
+    assert.ok(fs.existsSync(path.join(root, scriptPath)), `${scriptPath} must exist`);
+    assert.match(
+      dockerfile,
+      new RegExp(`^COPY ${scriptPath.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")} \\.\\/$`, "m"),
+      `${scriptPath} must be copied by the Dockerfile`,
+    );
+  });
+});

test/i18n.test.js

@@ -0,0 +1,85 @@
+const test = require("node:test");
+const assert = require("node:assert/strict");
+
+const {
+  DEFAULT_LANGUAGE,
+  TRANSLATIONS,
+  createI18n,
+  detectLanguage,
+  normalizeLanguage,
+} = require("../i18n.js");
+
+function createStorage(initialValue) {
+  let value = initialValue;
+  return {
+    getItem() {
+      return value;
+    },
+    setItem(key, nextValue) {
+      value = nextValue;
+    },
+    removeItem() {
+      value = undefined;
+    },
+  };
+}
+
+test("normalizes exact and base language tags", () => {
+  assert.equal(normalizeLanguage("pt-PT"), "pt-PT");
+  assert.equal(normalizeLanguage("pt-BR"), "pt-PT");
+  assert.equal(normalizeLanguage("en-US"), "en");
+  assert.equal(normalizeLanguage("fr"), null);
+});
+
+test("prefers a stored language over browser preferences", () => {
+  const storage = createStorage("en");
+  assert.equal(detectLanguage({ storage, languages: ["pt-PT"] }), "en");
+});
+
+test("uses the first supported browser language and otherwise falls back", () => {
+  assert.equal(detectLanguage({ storage: createStorage(), languages: ["fr", "pt-BR"] }), "pt-PT");
+  assert.equal(detectLanguage({ storage: createStorage(), languages: ["es-MX"] }), "es");
+  assert.equal(detectLanguage({ storage: createStorage(), languages: ["fr"] }), DEFAULT_LANGUAGE);
+});
+
+test("persists language changes and interpolates translated values", () => {
+  const storage = createStorage();
+  const i18n = createI18n({ storage, languages: ["en"] });
+
+  assert.equal(i18n.setLanguage("pt"), "pt-PT");
+  assert.equal(storage.getItem(), "pt-PT");
+  assert.equal(
+    i18n.t("noParcelFound", { parcelNumber: "57" }),
+    "Não foi encontrada a parcela com o número “57”.",
+  );
+});
+
+test("browser-default mode removes the preference and follows the browser language", () => {
+  const storage = createStorage("en");
+  const i18n = createI18n({ storage, languages: ["pt-PT"] });
+
+  assert.equal(i18n.setLanguage(null), "pt-PT");
+  assert.equal(i18n.preference, null);
+  assert.equal(storage.getItem(), undefined);
+});
+
+test("uses English for missing translations and the key for unknown messages", () => {
+  const storage = createStorage("pt-PT");
+  const originalTranslation = TRANSLATIONS["pt-PT"].zoomIn;
+  delete TRANSLATIONS["pt-PT"].zoomIn;
+
+  try {
+    const i18n = createI18n({ storage, languages: [] });
+    assert.equal(i18n.t("zoomIn"), TRANSLATIONS.en.zoomIn);
+    assert.equal(i18n.t("notARealMessage"), "notARealMessage");
+  } finally {
+    TRANSLATIONS["pt-PT"].zoomIn = originalTranslation;
+  }
+});
+
+test("all shipped languages contain the default translation keys", () => {
+  const defaultKeys = Object.keys(TRANSLATIONS[DEFAULT_LANGUAGE]).sort();
+  Object.entries(TRANSLATIONS).forEach(([language, translations]) => {
+    assert.deepEqual(Object.keys(translations).sort(), defaultKeys, language);
+  });
+});