diff --git a/src/base.rs b/src/base.rs
index 6f22dd7..d27a9ad 100644
--- a/src/base.rs
+++ b/src/base.rs
@@ -1,7 +1,9 @@
-//! Reúne acciones, componentes y temas listos para usar.
+//! Reúne acciones, componentes, extensiones y temas predefinidos.
 
 pub mod action;
 
 pub mod component;
 
+pub mod extension;
+
 pub mod theme;
diff --git a/src/base/extension.rs b/src/base/extension.rs
new file mode 100644
index 0000000..49e408d
--- /dev/null
+++ b/src/base/extension.rs
@@ -0,0 +1,4 @@
+//! Extensiones para funcionalidades avanzadas de `PageTop`.
+
+mod welcome;
+pub use welcome::Welcome;
diff --git a/src/base/extension/welcome.rs b/src/base/extension/welcome.rs
new file mode 100644
index 0000000..f0664d2
--- /dev/null
+++ b/src/base/extension/welcome.rs
@@ -0,0 +1,108 @@
+use crate::prelude::*;
+
+/// Página de bienvenida predeterminada de `PageTop`.
+///
+/// Esta extensión se instala por defecto y muestra una página en la ruta raíz (`/`) cuando no se ha
+/// configurado ninguna página de inicio personalizada. Permite confirmar que el servidor está
+/// funcionando correctamente.
+pub struct Welcome;
+
+impl ExtensionTrait for Welcome {
+    fn name(&self) -> L10n {
+        L10n::l("welcome_extension_name")
+    }
+
+    fn description(&self) -> L10n {
+        L10n::l("welcome_extension_description")
+    }
+
+    fn configure_service(&self, scfg: &mut service::web::ServiceConfig) {
+        scfg.route("/", service::web::get().to(homepage));
+    }
+}
+
+async fn homepage(request: HttpRequest) -> ResultPage<Markup, ErrorPage> {
+    let app = &global::SETTINGS.app.name;
+
+    Page::new(request)
+        .with_title(L10n::l("welcome_page"))
+        .with_theme("Basic")
+        .with_assets(AssetsOp::AddStyleSheet(StyleSheet::from("/css/welcome.css")))
+        .with_component(Html::with(html! {
+            div id="main-header" {
+                header {
+                    h1 id="header-title" aria-label=(L10n::l("welcome_aria").with_arg("app", app)) {
+                        span { (L10n::l("welcome_title")) }
+                        (L10n::l("welcome_intro").with_arg("app", app))
+                    }
+                }
+                aside id="header-image" aria-hidden="true" {
+                    div id="monster" {
+                        picture {
+                            source
+                                type="image/avif"
+                                src="/img/monster-pagetop_250.avif"
+                                srcset="/img/monster-pagetop_500.avif 1.5x";
+                            source
+                                type="image/webp"
+                                src="/img/monster-pagetop_250.webp"
+                                srcset="/img/monster-pagetop_500.webp 1.5x";
+                            img
+                                src="/img/monster-pagetop_250.png"
+                                srcset="/img/monster-pagetop_500.png 1.5x"
+                                alt="Monster PageTop";
+                        }
+                    }
+                }
+            }
+
+            main id="main-content" {
+                section class="content-body" {
+                    div id="poweredby-button" {
+                        a id="poweredby-link" href="https://pagetop.cillero.es" target="_blank" rel="noreferrer" {
+                            span {} span {} span {}
+                            div id="poweredby-text" { (L10n::l("welcome_powered")) }
+                        }
+                    }
+                    div class="content-text" {
+                        p { (L10n::l("welcome_text1")) }
+                        p { (L10n::l("welcome_text2")) }
+
+                        div class="subcontent" {
+                            h1 { span { (L10n::l("welcome_about")) } }
+                            p { (L10n::l("welcome_pagetop")) }
+                            p { (L10n::l("welcome_issues1")) }
+                            p { (L10n::l("welcome_issues2").with_arg("app", app)) }
+                        }
+                    }
+                }
+            }
+
+            footer id="footer" {
+                section class="footer-inner" {
+                    div class="footer-logo" {
+                        svg
+                            viewBox="0 0 1614 1614"
+                            xmlns="http://www.w3.org/2000/svg"
+                            role="img"
+                            aria-label=(L10n::l("pagetop_logo"))
+                            preserveAspectRatio="xMidYMid slice"
+                            focusable="false"
+                        {
+                            path fill="rgb(255,255,255)" d="M 1573,357 L 1415,357 C 1400,357 1388,369 1388,383 L 1388,410 1335,410 1335,357 C 1335,167 1181,13 992,13 L 621,13 C 432,13 278,167 278,357 L 278,410 225,410 225,383 C 225,369 213,357 198,357 L 40,357 C 25,357 13,369 13,383 L 13,648 C 13,662 25,674 40,674 L 198,674 C 213,674 225,662 225,648 L 225,621 278,621 278,1256 C 278,1446 432,1600 621,1600 L 992,1600 C 1181,1600 1335,1446 1335,1256 L 1335,621 1388,621 1388,648 C 1388,662 1400,674 1415,674 L 1573,674 C 1588,674 1600,662 1600,648 L 1600,383 C 1600,369 1588,357 1573,357 L 1573,357 1573,357 Z M 66,410 L 172,410 172,621 66,621 66,410 66,410 Z M 1282,357 L 1282,488 C 1247,485 1213,477 1181,464 L 1196,437 C 1203,425 1199,409 1186,401 1174,394 1158,398 1150,411 L 1133,440 C 1105,423 1079,401 1056,376 L 1075,361 C 1087,352 1089,335 1079,324 1070,313 1054,311 1042,320 L 1023,335 C 1000,301 981,263 967,221 L 1011,196 C 1023,189 1028,172 1021,160 1013,147 997,143 984,150 L 953,168 C 945,136 941,102 940,66 L 992,66 C 1152,66 1282,197 1282,357 L 1282,357 1282,357 Z M 621,66 L 674,66 674,225 648,225 C 633,225 621,237 621,251 621,266 633,278 648,278 L 674,278 674,357 648,357 C 633,357 621,369 621,383 621,398 633,410 648,410 L 674,410 674,489 648,489 C 633,489 621,501 621,516 621,530 633,542 648,542 L 664,542 C 651,582 626,623 600,662 583,653 563,648 542,648 469,648 410,707 410,780 410,787 411,794 412,801 388,805 361,806 331,806 L 331,357 C 331,197 461,66 621,66 L 621,66 621,66 Z M 621,780 C 621,824 586,859 542,859 498,859 463,824 463,780 463,736 498,701 542,701 586,701 621,736 621,780 L 621,780 621,780 Z M 225,463 L 278,463 278,569 225,569 225,463 225,463 Z M 992,1547 L 621,1547 C 461,1547 331,1416 331,1256 L 331,859 C 367,859 400,858 431,851 454,888 495,912 542,912 615,912 674,853 674,780 674,747 662,718 642,695 675,645 706,594 720,542 L 780,542 C 795,542 807,530 807,516 807,501 795,489 780,489 L 727,489 727,410 780,410 C 795,410 807,398 807,383 807,369 795,357 780,357 L 727,357 727,278 780,278 C 795,278 807,266 807,251 807,237 795,225 780,225 L 727,225 727,66 887,66 C 889,111 895,155 905,196 L 869,217 C 856,224 852,240 859,253 864,261 873,266 882,266 887,266 891,265 895,263 L 921,248 C 937,291 958,331 983,367 L 938,403 C 926,412 925,429 934,440 939,447 947,450 954,450 960,450 966,448 971,444 L 1016,408 C 1043,438 1074,465 1108,485 L 1084,527 C 1076,539 1081,555 1093,563 1098,565 1102,566 1107,566 1116,566 1125,561 1129,553 L 1155,509 C 1194,527 1237,538 1282,541 L 1282,1256 C 1282,1416 1152,1547 992,1547 L 992,1547 992,1547 Z M 1335,463 L 1388,463 1388,569 1335,569 1335,463 1335,463 Z M 1441,410 L 1547,410 1547,621 1441,621 1441,410 1441,410 Z" {}
+                            path fill="rgb(255,255,255)" d="M 1150,1018 L 463,1018 C 448,1018 436,1030 436,1044 L 436,1177 C 436,1348 545,1468 701,1468 L 912,1468 C 1068,1468 1177,1348 1177,1177 L 1177,1044 C 1177,1030 1165,1018 1150,1018 L 1150,1018 1150,1018 Z M 912,1071 L 1018,1071 1018,1124 912,1124 912,1071 912,1071 Z M 489,1071 L 542,1071 542,1124 489,1124 489,1071 489,1071 Z M 701,1415 L 700,1415 C 701,1385 704,1352 718,1343 731,1335 759,1341 795,1359 802,1363 811,1363 818,1359 854,1341 882,1335 895,1343 909,1352 912,1385 913,1415 L 912,1415 701,1415 701,1415 701,1415 Z M 1124,1177 C 1124,1296 1061,1384 966,1408 964,1365 958,1320 922,1298 894,1281 856,1283 807,1306 757,1283 719,1281 691,1298 655,1320 649,1365 647,1408 552,1384 489,1296 489,1177 L 569,1177 C 583,1177 595,1165 595,1150 L 595,1071 859,1071 859,1150 C 859,1165 871,1177 886,1177 L 1044,1177 C 1059,1177 1071,1165 1071,1150 L 1071,1071 1124,1071 1124,1177 1124,1177 1124,1177 Z" {}
+                            path fill="rgb(255,255,255)" d="M 1071,648 C 998,648 939,707 939,780 939,853 998,912 1071,912 1144,912 1203,853 1203,780 1203,707 1144,648 1071,648 L 1071,648 1071,648 Z M 1071,859 C 1027,859 992,824 992,780 992,736 1027,701 1071,701 1115,701 1150,736 1150,780 1150,824 1115,859 1071,859 L 1071,859 1071,859 Z" {}
+                        }
+                    }
+                    div class="footer-links" {
+                        a href="https://crates.io/crates/pagetop" target="_blank" rel="noreferrer" { ("Crates.io") }
+                        a href="https://docs.rs/pagetop" target="_blank" rel="noreferrer" { ("Docs.rs") }
+                        a href="https://git.cillero.es/manuelcillero/pagetop" target="_blank" rel="noreferrer" { (L10n::l("welcome_code")) }
+                        em { (L10n::l("welcome_have_fun")) }
+                    }
+                }
+            }
+
+        }))
+        .render()
+}
diff --git a/src/base/theme/basic.rs b/src/base/theme/basic.rs
index 0fc533c..4ea2460 100644
--- a/src/base/theme/basic.rs
+++ b/src/base/theme/basic.rs
@@ -11,4 +11,12 @@ impl ExtensionTrait for Basic {
     }
 }
 
-impl ThemeTrait for Basic {}
+impl ThemeTrait for Basic {
+    fn after_render_page_body(&self, page: &mut Page) {
+        page.alter_assets(AssetsOp::AddStyleSheet(
+            StyleSheet::from("/css/normalize.css")
+                .with_version("8.0.1")
+                .with_weight(-99),
+        ));
+    }
+}
diff --git a/src/core/extension/all.rs b/src/core/extension/all.rs
index f061044..93b5c4b 100644
--- a/src/core/extension/all.rs
+++ b/src/core/extension/all.rs
@@ -29,8 +29,8 @@ pub fn register_extensions(root_extension: Option<ExtensionRef>) {
         add_to_enabled(&mut enabled_list, extension);
     }
 
-    /* Añade la página de bienvenida por defecto a la lista de extensiones habilitadas.
-    add_to_enabled(&mut enabled_list, &crate::base::extension::Welcome); */
+    // Añade la página de bienvenida por defecto a la lista de extensiones habilitadas.
+    add_to_enabled(&mut enabled_list, &crate::base::extension::Welcome);
 
     // Guarda la lista final de extensiones habilitadas.
     ENABLED_EXTENSIONS.write().append(&mut enabled_list);
@@ -128,9 +128,18 @@ pub fn initialize_extensions() {
 include_files!(assets);
 
 pub fn configure_services(scfg: &mut service::web::ServiceConfig) {
+    // Sólo compila durante el desarrollo, para evitar errores 400 en la traza de eventos.
+    #[cfg(debug_assertions)]
+    scfg.route(
+        // Ruta automática lanzada por Chrome DevTools.
+        "/.well-known/appspecific/com.chrome.devtools.json",
+        service::web::get().to(|| async { service::HttpResponse::NotFound().finish() }),
+    );
+
     for extension in ENABLED_EXTENSIONS.read().iter() {
         extension.configure_service(scfg);
     }
+
     include_files_service!(
         scfg, assets => "/", [&global::SETTINGS.dev.pagetop_project_dir, "static"]
     );
diff --git a/src/global.rs b/src/global.rs
index faa9c2f..f150ca6 100644
--- a/src/global.rs
+++ b/src/global.rs
@@ -6,7 +6,7 @@ use serde::Deserialize;
 
 include_config!(SETTINGS: Settings => [
     // [app]
-    "app.name"                => "Sample",
+    "app.name"                => "PageTop App",
     "app.description"         => "Developed with the amazing PageTop framework.",
     "app.theme"               => "Basic",
     "app.language"            => "en-US",
diff --git a/src/lib.rs b/src/lib.rs
index 63ca6a5..598c55e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -98,7 +98,7 @@ pub mod core;
 pub mod response;
 // Gestión del servidor y servicios web.
 pub mod service;
-// Reúne acciones, componentes y temas listos para usar.
+// Reúne acciones, componentes, extensiones y temas predefinidos.
 pub mod base;
 // Prepara y ejecuta la aplicación.
 pub mod app;
diff --git a/src/locale.rs b/src/locale.rs
index 298b350..2a08ba6 100644
--- a/src/locale.rs
+++ b/src/locale.rs
@@ -90,7 +90,7 @@
 //! Y *voilà*, sólo queda operar con los idiomas soportados por `PageTop` usando [`LangMatch`] y
 //! traducir textos con [`L10n`].
 
-use crate::html::{Markup, PreEscaped};
+use crate::html::{Markup, PreEscaped, Render};
 use crate::{global, hm, AutoDefault};
 
 pub use fluent_templates;
@@ -313,7 +313,7 @@ enum L10nOp {
 /// // Traducción simple con clave y argumentos.
 /// let hello = L10n::l("greeting")
 ///     .with_arg("name", "Manuel")
-///     .markup();
+///     .get();
 /// ```
 ///
 /// También para traducciones a idiomas concretos.
@@ -400,17 +400,19 @@ impl L10n {
         }
     }
 
-    /// Traduce y escapa con el idioma por defecto, devolviendo [`Markup`].
-    pub fn markup(&self) -> Markup {
-        PreEscaped(self.get().unwrap_or_default())
-    }
-
     /// Traduce y escapa con el [`LanguageIdentifier`] indicado, devolviendo [`Markup`].
     pub fn escaped(&self, langid: &LanguageIdentifier) -> Markup {
         PreEscaped(self.using(langid).unwrap_or_default())
     }
 }
 
+impl Render for L10n {
+    /// Traduce y escapa con el idioma por defecto, devolviendo [`Markup`].
+    fn render(&self) -> Markup {
+        PreEscaped(self.get().unwrap_or_default())
+    }
+}
+
 impl fmt::Debug for L10n {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("L10n")
diff --git a/src/locale/en-US/theme.ftl b/src/locale/en-US/theme.ftl
index fd7f228..9c71e6b 100644
--- a/src/locale/en-US/theme.ftl
+++ b/src/locale/en-US/theme.ftl
@@ -1 +1,2 @@
 content = Content
+pagetop_logo = PageTop Logo
diff --git a/src/locale/en-US/welcome.ftl b/src/locale/en-US/welcome.ftl
new file mode 100644
index 0000000..7d98f44
--- /dev/null
+++ b/src/locale/en-US/welcome.ftl
@@ -0,0 +1,21 @@
+welcome_extension_name = Default homepage
+welcome_extension_description = Displays a landing page when none is configured.
+
+welcome_page = Welcome Page
+welcome_title = Hello world!
+welcome_aria = Say hello to your { $app } installation
+
+welcome_intro = Discover⚡{ $app }
+welcome_powered = A web solution powered by <strong>PageTop!</strong>
+
+welcome_text1 = If you can read this page, it means that the <strong>PageTop</strong> server is running correctly but has not yet been fully configured. This usually means the site is either experiencing temporary issues or is undergoing routine maintenance.
+welcome_text2 = If the issue persists, please <strong>contact your system administrator</strong> for assistance.
+
+welcome_about = About
+welcome_pagetop = <strong>PageTop</strong> is a <a href="https://www.rust-lang.org" target="_blank">Rust</a>-based web development framework for building modular, extensible, and configurable web solutions.
+
+welcome_issues1 = To report issues related to the <strong>PageTop</strong> framework, please use <a href="https://git.cillero.es/manuelcillero/pagetop/issues" target="_blank">SoloGit</a>. Before opening a new issue, check existing reports to avoid duplicates.
+welcome_issues2 = For issues related specifically to <strong>{ $app }</strong>, please refer to its official repository or support channel, rather than directly to <strong>PageTop</strong>.
+
+welcome_code = Code
+welcome_have_fun = Coding is creating
diff --git a/src/locale/es-ES/theme.ftl b/src/locale/es-ES/theme.ftl
index c2026c6..f193c53 100644
--- a/src/locale/es-ES/theme.ftl
+++ b/src/locale/es-ES/theme.ftl
@@ -1 +1,2 @@
 content = Contenido
+pagetop_logo = Logotipo de PageTop
diff --git a/src/locale/es-ES/welcome.ftl b/src/locale/es-ES/welcome.ftl
new file mode 100644
index 0000000..8a38425
--- /dev/null
+++ b/src/locale/es-ES/welcome.ftl
@@ -0,0 +1,21 @@
+welcome_extension_name = Página de inicio predeterminada
+welcome_extension_description = Muestra una página de inicio predeterminada cuando no hay ninguna configurada.
+
+welcome_page = Página de Bienvenida
+welcome_title = ¡Hola mundo!
+welcome_aria = Saluda a tu instalación { $app }
+
+welcome_intro = Descubre⚡{ $app }
+welcome_powered = Una solución web creada con <strong>PageTop!</strong>
+
+welcome_text1 = Si puedes leer esta página, significa que el servidor de <strong>PageTop</strong> funciona correctamente, pero aún no ha sido completamente configurado. Esto suele indicar que el sitio está experimentando problemas temporales o está pasando por un mantenimiento de rutina.
+welcome_text2 = Si el problema persiste, por favor <strong>contacta con el administrador del sistema</strong> para recibir asistencia técnica.
+
+welcome_about = Acerca de
+welcome_pagetop = <strong>PageTop</strong> es un entorno de desarrollo web basado en <a href="https://www.rust-lang.org/es" target="_blank">Rust</a>, diseñado para crear soluciones web modulares, extensibles y configurables.
+
+welcome_issues1 = Para comunicar cualquier problema con <strong>PageTop</strong>, utiliza <a href="https://git.cillero.es/manuelcillero/pagetop/issues" target="_blank">SoloGit</a>. Antes de informar de una incidencia, revisa los informes ya existentes para evitar duplicados.
+welcome_issues2 = Si se trata de fallos específicos de <strong>{ $app }</strong>, por favor acude a su repositorio oficial o canal de soporte, y no al de <strong>PageTop</strong> directamente.
+
+welcome_code = Código
+welcome_have_fun = Programar es crear
diff --git a/static/css/normalize.css b/static/css/normalize.css
new file mode 100644
index 0000000..192eb9c
--- /dev/null
+++ b/static/css/normalize.css
@@ -0,0 +1,349 @@
+/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */
+
+/* Document
+   ========================================================================== */
+
+/**
+ * 1. Correct the line height in all browsers.
+ * 2. Prevent adjustments of font size after orientation changes in iOS.
+ */
+
+html {
+  line-height: 1.15; /* 1 */
+  -webkit-text-size-adjust: 100%; /* 2 */
+}
+
+/* Sections
+   ========================================================================== */
+
+/**
+ * Remove the margin in all browsers.
+ */
+
+body {
+  margin: 0;
+}
+
+/**
+ * Render the `main` element consistently in IE.
+ */
+
+main {
+  display: block;
+}
+
+/**
+ * Correct the font size and margin on `h1` elements within `section` and
+ * `article` contexts in Chrome, Firefox, and Safari.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
+}
+
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * 1. Add the correct box sizing in Firefox.
+ * 2. Show the overflow in Edge and IE.
+ */
+
+hr {
+  box-sizing: content-box; /* 1 */
+  height: 0; /* 1 */
+  overflow: visible; /* 2 */
+}
+
+/**
+ * 1. Correct the inheritance and scaling of font size in all browsers.
+ * 2. Correct the odd `em` font sizing in all browsers.
+ */
+
+pre {
+  font-family: monospace, monospace; /* 1 */
+  font-size: 1em; /* 2 */
+}
+
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * Remove the gray background on active links in IE 10.
+ */
+
+a {
+  background-color: transparent;
+}
+
+/**
+ * 1. Remove the bottom border in Chrome 57-
+ * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
+ */
+
+abbr[title] {
+  border-bottom: none; /* 1 */
+  text-decoration: underline; /* 2 */
+  text-decoration: underline dotted; /* 2 */
+}
+
+/**
+ * Add the correct font weight in Chrome, Edge, and Safari.
+ */
+
+b,
+strong {
+  font-weight: bolder;
+}
+
+/**
+ * 1. Correct the inheritance and scaling of font size in all browsers.
+ * 2. Correct the odd `em` font sizing in all browsers.
+ */
+
+code,
+kbd,
+samp {
+  font-family: monospace, monospace; /* 1 */
+  font-size: 1em; /* 2 */
+}
+
+/**
+ * Add the correct font size in all browsers.
+ */
+
+small {
+  font-size: 80%;
+}
+
+/**
+ * Prevent `sub` and `sup` elements from affecting the line height in
+ * all browsers.
+ */
+
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+sub {
+  bottom: -0.25em;
+}
+
+sup {
+  top: -0.5em;
+}
+
+/* Embedded content
+   ========================================================================== */
+
+/**
+ * Remove the border on images inside links in IE 10.
+ */
+
+img {
+  border-style: none;
+}
+
+/* Forms
+   ========================================================================== */
+
+/**
+ * 1. Change the font styles in all browsers.
+ * 2. Remove the margin in Firefox and Safari.
+ */
+
+button,
+input,
+optgroup,
+select,
+textarea {
+  font-family: inherit; /* 1 */
+  font-size: 100%; /* 1 */
+  line-height: 1.15; /* 1 */
+  margin: 0; /* 2 */
+}
+
+/**
+ * Show the overflow in IE.
+ * 1. Show the overflow in Edge.
+ */
+
+button,
+input { /* 1 */
+  overflow: visible;
+}
+
+/**
+ * Remove the inheritance of text transform in Edge, Firefox, and IE.
+ * 1. Remove the inheritance of text transform in Firefox.
+ */
+
+button,
+select { /* 1 */
+  text-transform: none;
+}
+
+/**
+ * Correct the inability to style clickable types in iOS and Safari.
+ */
+
+button,
+[type="button"],
+[type="reset"],
+[type="submit"] {
+  -webkit-appearance: button;
+}
+
+/**
+ * Remove the inner border and padding in Firefox.
+ */
+
+button::-moz-focus-inner,
+[type="button"]::-moz-focus-inner,
+[type="reset"]::-moz-focus-inner,
+[type="submit"]::-moz-focus-inner {
+  border-style: none;
+  padding: 0;
+}
+
+/**
+ * Restore the focus styles unset by the previous rule.
+ */
+
+button:-moz-focusring,
+[type="button"]:-moz-focusring,
+[type="reset"]:-moz-focusring,
+[type="submit"]:-moz-focusring {
+  outline: 1px dotted ButtonText;
+}
+
+/**
+ * Correct the padding in Firefox.
+ */
+
+fieldset {
+  padding: 0.35em 0.75em 0.625em;
+}
+
+/**
+ * 1. Correct the text wrapping in Edge and IE.
+ * 2. Correct the color inheritance from `fieldset` elements in IE.
+ * 3. Remove the padding so developers are not caught out when they zero out
+ *    `fieldset` elements in all browsers.
+ */
+
+legend {
+  box-sizing: border-box; /* 1 */
+  color: inherit; /* 2 */
+  display: table; /* 1 */
+  max-width: 100%; /* 1 */
+  padding: 0; /* 3 */
+  white-space: normal; /* 1 */
+}
+
+/**
+ * Add the correct vertical alignment in Chrome, Firefox, and Opera.
+ */
+
+progress {
+  vertical-align: baseline;
+}
+
+/**
+ * Remove the default vertical scrollbar in IE 10+.
+ */
+
+textarea {
+  overflow: auto;
+}
+
+/**
+ * 1. Add the correct box sizing in IE 10.
+ * 2. Remove the padding in IE 10.
+ */
+
+[type="checkbox"],
+[type="radio"] {
+  box-sizing: border-box; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Correct the cursor style of increment and decrement buttons in Chrome.
+ */
+
+[type="number"]::-webkit-inner-spin-button,
+[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+/**
+ * 1. Correct the odd appearance in Chrome and Safari.
+ * 2. Correct the outline style in Safari.
+ */
+
+[type="search"] {
+  -webkit-appearance: textfield; /* 1 */
+  outline-offset: -2px; /* 2 */
+}
+
+/**
+ * Remove the inner padding in Chrome and Safari on macOS.
+ */
+
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+/**
+ * 1. Correct the inability to style clickable types in iOS and Safari.
+ * 2. Change font properties to `inherit` in Safari.
+ */
+
+::-webkit-file-upload-button {
+  -webkit-appearance: button; /* 1 */
+  font: inherit; /* 2 */
+}
+
+/* Interactive
+   ========================================================================== */
+
+/*
+ * Add the correct display in Edge, IE 10+, and Firefox.
+ */
+
+details {
+  display: block;
+}
+
+/*
+ * Add the correct display in all browsers.
+ */
+
+summary {
+  display: list-item;
+}
+
+/* Misc
+   ========================================================================== */
+
+/**
+ * Add the correct display in IE 10+.
+ */
+
+template {
+  display: none;
+}
+
+/**
+ * Add the correct display in IE 10.
+ */
+
+[hidden] {
+  display: none;
+}
diff --git a/static/css/welcome.css b/static/css/welcome.css
new file mode 100644
index 0000000..8f60348
--- /dev/null
+++ b/static/css/welcome.css
@@ -0,0 +1,460 @@
+:root {
+	--bg-img: url('/img/welcome-header.jpg');
+	--bg-img-set: image-set(url('/img/welcome-header.avif') type('image/avif'), url('/img/welcome-header.webp') type('image/webp'), var(--bg-img) type('image/jpeg'));
+	--bg-img-sm: url('/img/welcome-header-sm.jpg');
+	--bg-img-sm-set: image-set(url('/img/welcome-header-sm.avif') type('image/avif'), url('/img/welcome-header-sm.webp') type('image/webp'), var(--bg-img-sm) type('image/jpeg'));
+	--bg-color: #8c5919;
+	--color: #1a202c;
+	--color-red: #fecaca;
+	--color-gray: #e4e4e7;
+	--color-link: #1e4eae;
+	--focus-outline: 2px solid var(--color-link);
+	--focus-outline-offset: 2px;
+	--shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
+}
+
+html {
+	min-height: 100%;
+	background-color: black;
+}
+body {
+	margin: auto;
+	position: relative;
+	min-height: 100%;
+	min-width: 350px;
+	background-color: var(--bg-color);
+	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
+	font-size: 1.125rem;
+	font-weight: 300;
+	color: var(--color);
+	line-height: 1.6;
+}
+
+header,
+section {
+	position: relative;
+	text-align: center;
+}
+
+a {
+	color: currentColor;
+	text-decoration: underline;
+	transition: font-size 0.2s, text-decoration-color 0.2s;
+}
+a:focus-visible {
+	outline: var(--focus-outline);
+	outline-offset: var(--focus-outline-offset);
+}
+a:hover,
+a:hover:visited {
+	text-decoration-color: var(--color-link);
+}
+
+#content {
+	width: 100%;
+	display: flex;
+	flex-direction: column;
+	justify-content: center;
+	align-items: center;
+}
+
+#main-header {
+	display: flex;
+	flex-direction: column-reverse;
+	padding-bottom: 9rem;
+	max-width: 80rem;
+	width: 100%;
+	background-image: var(--bg-img-sm);
+	background-image: var(--bg-img-sm-set);
+	background-position: top center;
+	background-position-y: -1rem;
+	background-size: contain;
+	background-repeat: no-repeat;
+}
+#main-header header {
+	padding: 0;
+	background: none;
+}
+#header-title {
+	margin: 0 0 0 1.5rem;
+	text-align: left;
+	display: flex;
+	flex-direction: column;
+	box-sizing: border-box;
+	color: #dceefb;
+	padding: clamp(0rem, -5.4892rem + 23.4206vw, 9.5rem) 1rem 1rem;
+	font-size: clamp(1.5rem, 0.7231rem + 3.3149vw, 3.375rem);
+	font-style: italic;
+	font-weight: 600;
+	line-height: 110%;
+	text-shadow: 0 0.125rem 0.1875rem rgba(0, 0, 0, 0.3);
+}
+#header-title > span {
+	background: linear-gradient(180deg, #ddff95 30%, #ffb84b 100%);
+	background-clip: text;
+	-webkit-background-clip: text;
+	-webkit-text-fill-color: transparent;
+	font-size: clamp(2.25rem, 1.3177rem + 3.9779vw, 6.5rem);
+	font-style: normal;
+	font-weight: 700;
+	line-height: 110%;
+	text-shadow: none;
+}
+#header-image {
+	width: 100%;
+	text-align: right;
+	display: flex;
+	justify-content: flex-start;
+}
+#header-image #monster {
+	margin-right: 12rem;
+	margin-top: 1rem;
+	flex-shrink: 1;
+}
+@media (min-width: 64rem) {
+	#main-header {
+		background-image: var(--bg-img);
+		background-image: var(--bg-img-set);
+	}
+	#header-title {
+		padding: 1.2rem 2rem 2.6rem 2rem;
+	}
+	#header-image {
+		justify-content: flex-end;
+	}
+}
+
+#main-content {
+	height: auto;
+	margin-top: 1.6rem;
+}
+.content-body {
+	box-sizing: border-box;
+	max-width: 80rem;
+}
+.content-body:before,
+.content-body:after {
+	content: '';
+	position: absolute;
+	left: 0;
+	right: 0;
+	background: linear-gradient(130deg, rgba(13, 44, 91, 0) 0%, #ddff95 77.4%);
+	margin: 0 -10.375rem;
+	filter: blur(2.75rem);
+	opacity: 0.8;
+	inset: 11.75rem;
+	z-index: 0;
+}
+.content-body:before {
+	top: -1rem;
+}
+.content-body:after {
+	bottom: -1rem;
+}
+@media (max-width: 48rem) {
+	.content-body {
+		margin-top: -9.8rem;
+	}
+	.content-body:before,
+	.content-body:after {
+		inset: unset;
+	}
+}
+@media (min-width: 64rem) {
+	#main-content {
+		margin-top: 0;
+	}
+	.content-body {
+		margin-top: -5.7rem;
+	}
+}
+
+#poweredby-button {
+	width: 100%;
+	margin: 0 auto 3rem;
+	z-index: 10;
+}
+#poweredby-link {
+	background: #7f1d1d;
+	background-image: linear-gradient(to bottom, rgba(255,0,0,0.8), rgba(255,255,255,0));
+	background-position: top left, center;
+	background-size: contain;
+	background-repeat: no-repeat;
+	border-radius: 0.75rem;
+	display: flex;
+	flex-wrap: wrap;
+	justify-content: space-between;
+	font-size: 1.5rem;
+	line-height: 1.3;
+	text-decoration: none;
+	text-shadow: var(--shadow);
+	transition: transform 0.3s ease-in-out;
+	position: relative;
+	overflow: hidden;
+	min-width: 28.875rem;
+	min-height: 7.6875rem;
+	outline: none;
+}
+#poweredby-link::before {
+	content: '';
+	position: absolute;
+	top: -13.125rem;
+	left: -10rem;
+	height: 26.25rem;
+	width: 26.25rem;
+	background: linear-gradient(135deg, #ec7bae 50.41%, #9600b8 70.41%);
+	transform: rotate(45deg);
+	transition: transform 0.3s ease-in-out;
+	z-index: 5;
+}
+#poweredby-text {
+	display: flex;
+	flex-direction: column;
+	flex: 1;
+	transition: all 0.5s ease-in-out;
+	position: relative;
+	z-index: 10;
+	padding: 1rem 1.5rem;
+	text-align: left;
+	color: white;
+	text-shadow: 0 0.101125rem 0.2021875rem rgba(0, 0, 0, 0.25);
+	font-size: 1.65rem;
+	font-style: normal;
+	font-weight: 600;
+	line-height: 130.023%;
+	letter-spacing: 0.0075rem;
+}
+#poweredby-text strong {
+	font-size: 2.625rem;
+	font-weight: 600;
+	line-height: 130.023%;
+	letter-spacing: 0.013125rem;
+}
+#poweredby-link span {
+	position: absolute;
+	display: block;
+	pointer-events: none;
+}
+#poweredby-link span:nth-child(1) {
+	height: 8px;
+	width: 100%;
+	top: 0;
+	left: 0;
+	background: linear-gradient(to right, rgba(0, 0, 0, 0), #f6e58d);
+	border-top-right-radius: 4px;
+	border-bottom-right-radius: 4px;
+	transform: translateX(-100%);
+	animation: span1 8s linear infinite;
+	animation-delay: 1s;
+}
+@keyframes span1 {
+	0% {
+		transform: translateX(-100%);
+	}
+	100% {
+		transform: translateX(100%);
+	}
+}
+#poweredby-link span:nth-child(2) {
+	width: 8px;
+	height: 100%;
+	top: 0;
+	right: 0;
+	background: linear-gradient(to bottom, rgba(0, 0, 0, 0), #f6e58d);
+	border-bottom-left-radius: 4px;
+	border-bottom-right-radius: 4px;
+	transform: translateY(100%);
+	animation: span2 4s linear infinite;
+	animation-delay: 5s;
+}
+@keyframes span2 {
+	0% {
+		transform: translateY(-100%);
+	}
+	100% {
+		transform: translateY(100%);
+	}
+}
+#poweredby-link span:nth-child(3) {
+	height: 8px;
+	width: 100%;
+	bottom: 0;
+	right: 0;
+	background: linear-gradient(to left, rgba(0, 0, 0, 0), #f6e58d);
+	border-top-left-radius: 4px;
+	border-bottom-left-radius: 4px;
+	transform: translateX(100%);
+	animation: span3 8s linear infinite;
+	animation-delay: 7s;
+}
+@keyframes span3 {
+	0% {
+		transform: translateX(100%);
+	}
+	100% {
+		transform: translateX(-100%);
+	}
+}
+#poweredby-link:hover {
+	transition: all .5s;
+	transform: rotate(-3deg) scale(1.1);
+	box-shadow: 0px 3px 5px rgba(0,0,0,.4);
+}
+#poweredby-link:hover span {
+	animation-play-state: paused;
+}
+@media (max-width: 48rem) {
+	#poweredby-link {
+		height: 6.25rem;
+		min-width: auto;
+		border-radius: 0;
+	}
+	#poweredby-text {
+		display: inline;
+		padding-top: .5rem;
+	}
+}
+@media (min-width: 48rem) {
+	#poweredby-button {
+		position: absolute;
+		top: 0;
+		left: 50%;
+		transform: translate(-50%, -50%);
+		max-width: 29.375rem;
+		margin-bottom: 0;
+	}
+}
+
+.content-text {
+	z-index: 1;
+	width: 100%;
+	display: flex;
+	flex-direction: column;
+	box-sizing: border-box;
+	align-items: center;
+	text-align: left;
+	font-size: 1.3125rem;
+	font-weight: 400;
+	line-height: 1.5;
+	margin-top: -6rem;
+	background: #fff;
+	margin-bottom: 0;
+	position: relative;
+	padding: 6rem 1.063rem 0.75rem;
+	overflow: hidden;
+}
+.content-text p {
+	width: 100%;
+	line-height: 150%;
+	font-weight: 400;
+	font-size: 1.45rem;
+	margin: 0 0 1.5rem;
+}
+@media (min-width: 48rem) {
+	.content-text {
+		font-size: 1.375rem;
+		line-height: 2rem;
+		padding-top: 7rem;
+	}
+}
+@media (min-width: 64rem) {
+	.content-text {
+		border-radius: 0.75rem;
+		box-shadow: var(--shadow);
+		max-width: 60rem;
+		margin: 0 auto 6rem;
+		padding-left: 4.5rem;
+		padding-right: 4.5rem;
+	}
+}
+
+.subcontent {
+	position: relative;
+}
+.subcontent h1 {
+	margin: 1em 0 .8em;
+}
+.subcontent h1 span {
+	display: inline-block;
+	padding: 10px 30px 14px;
+	margin: 0 0 0 20px;
+	background: white;
+	border: 5px solid;
+	border-radius: 30px;
+	box-shadow: 0 0 0 5px white, inset 0 0 0 5px white;
+	border-color: orangered;
+	transform: rotate(-3deg) translateY(-25%);
+}
+.subcontent h1:before {
+	content: "";
+	height: 5px;
+	position: absolute;
+	top: 50px;
+	left: -15%;
+	width: 130%;
+	z-index: -5;
+	background: orangered;
+	box-shadow: 0 0 0 5px white, 0 -10px 0 5px white;
+	transform: rotate(2deg) translateY(-50%);
+	transform-origin: top left;
+}
+.subcontent h1:after {
+	content: "";
+	height: 70rem;
+	position: absolute;
+	top: 42px;
+	left: -15%;
+	width: 130%;
+	z-index: -10;
+	background: var(--color-red);
+	transform: rotate(2deg);
+}
+
+#footer {
+	width: 100%;
+	background-color: black;
+	color: var(--color-gray);
+	font-size: 1.15rem;
+	font-weight: 300;
+	line-height: 100%;
+	display: flex;
+	justify-content: center;
+	z-index: 10;
+}
+#footer a:visited {
+	color: var(--color-gray);
+}
+.footer-logo {
+	max-height: 12.625rem;
+}
+.footer-logo svg {
+	width: 100%;
+}
+.footer-logo,
+.footer-links,
+.footer-inner {
+	display: flex;
+	justify-content: center;
+	width: 100%;
+}
+.footer-links {
+	gap: 1.875rem;
+	flex-wrap: wrap;
+	margin-top: 2rem;
+}
+.footer-inner {
+	max-width: 80rem;
+	display: flex;
+	flex-direction: column;
+	padding: 0 10.625rem 2rem;
+}
+@media (max-width: 48rem) {
+	.footer-logo {
+		display: none;
+	}
+}
+@media (max-width: 64rem) {
+	.footer-inner {
+		padding: 0 1rem 2rem;
+	}
+}
diff --git a/static/img/monster-pagetop_250.avif b/static/img/monster-pagetop_250.avif
new file mode 100644
index 0000000..df864b8
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diff --git a/static/img/monster-pagetop_250.png b/static/img/monster-pagetop_250.png
new file mode 100644
index 0000000..baa7d1f
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diff --git a/static/img/monster-pagetop_250.webp b/static/img/monster-pagetop_250.webp
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index 0000000..dcc5ef2
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diff --git a/static/img/monster-pagetop_500.avif b/static/img/monster-pagetop_500.avif
new file mode 100644
index 0000000..d07f359
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diff --git a/static/img/monster-pagetop_500.png b/static/img/monster-pagetop_500.png
new file mode 100644
index 0000000..d0b9e0b
Binary files /dev/null and b/static/img/monster-pagetop_500.png differ
diff --git a/static/img/monster-pagetop_500.webp b/static/img/monster-pagetop_500.webp
new file mode 100644
index 0000000..18896fe
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diff --git a/static/img/welcome-header-sm.avif b/static/img/welcome-header-sm.avif
new file mode 100644
index 0000000..ec31a6d
Binary files /dev/null and b/static/img/welcome-header-sm.avif differ
diff --git a/static/img/welcome-header-sm.jpg b/static/img/welcome-header-sm.jpg
new file mode 100644
index 0000000..f2c875f
Binary files /dev/null and b/static/img/welcome-header-sm.jpg differ
diff --git a/static/img/welcome-header-sm.webp b/static/img/welcome-header-sm.webp
new file mode 100644
index 0000000..9f7aff8
Binary files /dev/null and b/static/img/welcome-header-sm.webp differ
diff --git a/static/img/welcome-header.avif b/static/img/welcome-header.avif
new file mode 100644
index 0000000..8018555
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diff --git a/static/img/welcome-header.jpg b/static/img/welcome-header.jpg
new file mode 100644
index 0000000..69f1dbe
Binary files /dev/null and b/static/img/welcome-header.jpg differ
diff --git a/static/img/welcome-header.webp b/static/img/welcome-header.webp
new file mode 100644
index 0000000..7da174c
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diff --git a/tests/service.rs b/tests/service.rs
index 51e74c7..5aec398 100644
--- a/tests/service.rs
+++ b/tests/service.rs
@@ -8,8 +8,5 @@ async fn homepage_returns_404() {
     let resp = service::test::call_service(&app, req).await;
 
     // Comprueba el acceso a la ruta de inicio.
-    // assert_eq!(resp.status(), service::http::StatusCode::OK);
-
-    // Sin ruta de inicio se obtiene error 404, pero el test funciona.
-    assert_eq!(resp.status(), service::http::StatusCode::NOT_FOUND);
+    assert_eq!(resp.status(), service::http::StatusCode::OK);
 }