[FASE 1] Reorganizar CSS según arquitectura modular - Issue #95

Cambios realizados:
- NUEVO: Crear assets/css/style.css con CSS base del tema (650 líneas)
- MODIFICADO: style.css - Dejar solo header obligatorio de WordPress (~25 líneas)
- MODIFICADO: enqueue-scripts.php - Agregar carga de assets/css/style.css

Detalles:
- Mover todo el CSS de style.css (variables, reset, typography, layouts)
  a assets/css/style.css para cumplir con arquitectura modular
- style.css ahora contiene SOLO el comentario header de WordPress
- Agregar función apus_enqueue_main_stylesheet() con filemtime()
  para cache busting
- Orden de carga: Bootstrap → Variables → style.css → componentes

Validación FASE 1 completada:
✅ style.css con header WordPress
✅ functions.php completo
✅ index.php con The Loop
✅ assets/css/style.css creado
✅ assets/js/main.js existe
✅ Arquitectura modular respetada

Referencia: _planeacion/_desarrollo-tema-apus/theme-documentation/03-fase-1-cimiento/

Closes #95

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

wp-content/themes/apus-theme/assets/css/style.css

@@ -0,0 +1,648 @@
+/* ==========================================================================
+   CSS Variables
+   ========================================================================== */
+
+:root {
+  /* Typography - Using system fonts by default (defined in fonts.css) */
+  /* These will be overridden by fonts.css custom properties */
+  --font-primary: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
+  --font-secondary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+  --font-headings: Avenir, "Avenir Next LT Pro", Montserrat, Corbel, "URW Gothic", source-sans-pro, sans-serif;
+  --font-code: "Consolas", "Monaco", "Courier New", Courier, monospace;
+
+  /* Font Sizes - Fluid typography scale */
+  --font-size-xs: 0.75rem;     /* 12px */
+  --font-size-sm: 0.875rem;    /* 14px */
+  --font-size-base: 1rem;      /* 16px */
+  --font-size-lg: 1.125rem;    /* 18px */
+  --font-size-xl: 1.25rem;     /* 20px */
+  --font-size-2xl: 1.5rem;     /* 24px */
+  --font-size-3xl: 1.875rem;   /* 30px */
+  --font-size-4xl: 2.25rem;    /* 36px */
+
+  /* Line Heights */
+  --line-height-none: 1;
+  --line-height-tight: 1.25;
+  --line-height-normal: 1.5;
+  --line-height-relaxed: 1.75;
+  --line-height-loose: 2;
+
+  /* Font Weights */
+  --font-weight-light: 300;
+  --font-weight-normal: 400;
+  --font-weight-medium: 500;
+  --font-weight-semibold: 600;
+  --font-weight-bold: 700;
+
+  /* Colors - WCAG AA compliant (minimum 4.5:1 contrast ratio) */
+  --color-primary: #0056b3;      /* Contrast ratio 7.53:1 against white */
+  --color-secondary: #5a6268;    /* Contrast ratio 7.04:1 against white */
+  --color-success: #1e7e34;      /* Contrast ratio 5.91:1 against white */
+  --color-danger: #c81e1e;       /* Contrast ratio 6.12:1 against white */
+  --color-warning: #856404;      /* Contrast ratio 7.51:1 against white */
+  --color-info: #117a8b;         /* Contrast ratio 5.34:1 against white */
+  --color-light: #f8f9fa;
+  --color-dark: #212529;
+  --color-text: #212529;         /* Contrast ratio 15.52:1 against white */
+  --color-bg: #ffffff;
+
+  /* Spacing */
+  --spacing-xs: 0.25rem;
+  --spacing-sm: 0.5rem;
+  --spacing-md: 1rem;
+  --spacing-lg: 1.5rem;
+  --spacing-xl: 2rem;
+  --spacing-xxl: 3rem;
+
+  /* Header specific variables */
+  --header-height: 70px;
+  --header-bg: #ffffff;
+  --header-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+
+  /* Z-index scale */
+  --z-header: 1000;
+  --z-mobile-menu: 999;
+  --z-overlay: 998;
+}
+
+/* ==========================================================================
+   Reset & Base Styles
+   ========================================================================== */
+
+* {
+  box-sizing: border-box;
+}
+
+html {
+  font-size: 16px;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+body {
+  margin: 0;
+  padding: 0;
+  font-family: var(--font-primary);
+  font-size: 1rem;
+  line-height: 1.6;
+  color: var(--color-text);
+  background-color: var(--color-bg);
+}
+
+/* ==========================================================================
+   Typography
+   ========================================================================== */
+
+h1, h2, h3, h4, h5, h6 {
+  margin-top: 0;
+  margin-bottom: 0.5em;
+  font-family: var(--font-headings);
+  font-weight: var(--font-weight-semibold);
+  line-height: var(--line-height-tight);
+}
+
+h1 { font-size: 2.5rem; }
+h2 { font-size: 2rem; }
+h3 { font-size: 1.75rem; }
+h4 { font-size: 1.5rem; }
+h5 { font-size: 1.25rem; }
+h6 { font-size: 1rem; }
+
+p {
+  margin-top: 0;
+  margin-bottom: 1rem;
+}
+
+a {
+  color: var(--color-primary);
+  text-decoration: none;
+  transition: color 0.3s ease;
+}
+
+a:hover {
+  color: #003d82;  /* Darker blue for better contrast - 9.52:1 */
+  text-decoration: underline;
+}
+
+a:focus {
+  outline: 2px solid var(--color-primary);
+  outline-offset: 2px;
+}
+
+img {
+  max-width: 100%;
+  height: auto;
+  display: block;
+}
+
+/* ==========================================================================
+   Screen Reader Text
+   ========================================================================== */
+
+.screen-reader-text {
+  position: absolute;
+  left: -10000px;
+  width: 1px;
+  height: 1px;
+  overflow: hidden;
+  clip: rect(1px, 1px, 1px, 1px);
+  clip-path: inset(50%);
+  white-space: nowrap;
+}
+
+.screen-reader-text:focus {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: auto;
+  height: auto;
+  padding: 1rem;
+  background: #000;
+  color: #fff;
+  z-index: 100000;
+  clip: auto;
+  clip-path: none;
+}
+
+/* ==========================================================================
+   Skip Link
+   ========================================================================== */
+
+.skip-link {
+  position: absolute;
+  top: -40px;
+  left: 0;
+  background: #000;
+  color: #fff;
+  padding: 0.5rem 1rem;
+  z-index: 100000;
+  text-decoration: none;
+}
+
+.skip-link:focus {
+  top: 0;
+  outline: 2px solid #fff;
+  outline-offset: 2px;
+}
+
+/* ==========================================================================
+   Site Structure
+   ========================================================================== */
+
+.site {
+  display: flex;
+  flex-direction: column;
+  min-height: 100vh;
+}
+
+.site-main {
+  flex-grow: 1;
+}
+
+/* ==========================================================================
+   Content Wrapper
+   ========================================================================== */
+
+.content-wrapper {
+  max-width: 1200px;
+  margin: 0 auto;
+  padding: var(--spacing-xl);
+  display: grid;
+  grid-template-columns: 1fr;
+  gap: var(--spacing-xl);
+}
+
+@media (min-width: 768px) {
+  .content-wrapper {
+    grid-template-columns: 2fr 1fr;
+  }
+}
+
+#primary {
+  min-width: 0;
+}
+
+/* ==========================================================================
+   Single Post & Page Styles
+   ========================================================================== */
+
+.post-thumbnail {
+  margin-bottom: var(--spacing-xl);
+  overflow: hidden;
+  border-radius: 8px;
+}
+
+.post-thumbnail img {
+  width: 100%;
+  height: auto;
+  display: block;
+}
+
+.entry-header {
+  margin-bottom: var(--spacing-xl);
+}
+
+.entry-title {
+  margin-bottom: var(--spacing-md);
+  color: var(--color-dark);
+}
+
+.entry-categories {
+  display: flex;
+  gap: var(--spacing-sm);
+  flex-wrap: wrap;
+  margin-bottom: var(--spacing-md);
+}
+
+.category-badge {
+  display: inline-block;
+  padding: var(--spacing-xs) var(--spacing-sm);
+  background-color: var(--color-primary);
+  color: #fff;
+  font-size: 0.875rem;
+  font-weight: 600;
+  border-radius: 4px;
+  text-decoration: none;
+  transition: background-color 0.3s ease;
+}
+
+.category-badge:hover {
+  background-color: #003d82;  /* Darker for better contrast */
+  text-decoration: none;
+}
+
+.entry-meta {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--spacing-md);
+  font-size: 0.875rem;
+  color: var(--color-secondary);
+  margin-bottom: var(--spacing-lg);
+}
+
+.entry-meta time {
+  display: block;
+}
+
+.entry-meta .updated {
+  display: block;
+  margin-top: var(--spacing-xs);
+  font-size: 0.8125rem;
+}
+
+.entry-content {
+  line-height: 1.8;
+  margin-bottom: var(--spacing-xl);
+}
+
+.entry-content > * + * {
+  margin-top: var(--spacing-md);
+}
+
+.entry-content img {
+  border-radius: 4px;
+  margin: var(--spacing-lg) 0;
+}
+
+.entry-footer {
+  padding-top: var(--spacing-lg);
+  border-top: 1px solid #e9ecef;
+  margin-top: var(--spacing-xl);
+}
+
+.tags-links {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--spacing-sm);
+  align-items: center;
+  margin-bottom: var(--spacing-md);
+}
+
+.tags-label {
+  font-weight: 600;
+  color: var(--color-dark);
+}
+
+.tags-list a {
+  display: inline-block;
+  padding: var(--spacing-xs) var(--spacing-sm);
+  background-color: var(--color-light);
+  color: var(--color-dark);
+  font-size: 0.875rem;
+  border-radius: 4px;
+  text-decoration: none;
+  transition: background-color 0.3s ease;
+}
+
+.tags-list a:hover {
+  background-color: #e2e6ea;
+  text-decoration: none;
+}
+
+.edit-link a {
+  color: var(--color-secondary);
+  font-size: 0.875rem;
+}
+
+/* ==========================================================================
+   Archive Styles
+   ========================================================================== */
+
+.page-header {
+  margin-bottom: var(--spacing-xxl);
+  padding-bottom: var(--spacing-lg);
+  border-bottom: 2px solid var(--color-primary);
+}
+
+.page-title {
+  margin-bottom: var(--spacing-md);
+  color: var(--color-dark);
+}
+
+.archive-description {
+  color: var(--color-secondary);
+  font-size: 1.125rem;
+  line-height: 1.6;
+}
+
+.archive-posts {
+  display: grid;
+  gap: var(--spacing-xxl);
+  margin-bottom: var(--spacing-xxl);
+}
+
+.archive-posts article {
+  display: grid;
+  gap: var(--spacing-lg);
+}
+
+@media (min-width: 768px) {
+  .archive-posts article {
+    grid-template-columns: 300px 1fr;
+  }
+}
+
+.archive-posts .post-thumbnail {
+  margin-bottom: 0;
+}
+
+.archive-posts .entry-summary {
+  color: var(--color-text);
+  line-height: 1.6;
+}
+
+.read-more-link {
+  display: inline-flex;
+  align-items: center;
+  gap: var(--spacing-xs);
+  font-weight: 600;
+  color: var(--color-primary);
+  text-decoration: none;
+  margin-top: var(--spacing-md);
+}
+
+.read-more-link:hover {
+  text-decoration: underline;
+}
+
+.read-more-icon {
+  transition: transform 0.3s ease;
+}
+
+.read-more-link:hover .read-more-icon {
+  transform: translateX(4px);
+}
+
+/* ==========================================================================
+   Pagination
+   ========================================================================== */
+
+.pagination,
+.posts-pagination {
+  margin-top: var(--spacing-xxl);
+  margin-bottom: var(--spacing-xxl);
+}
+
+.nav-links {
+  display: flex;
+  justify-content: center;
+  gap: var(--spacing-sm);
+  flex-wrap: wrap;
+}
+
+.nav-links .page-numbers {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 44px;
+  min-height: 44px;
+  padding: var(--spacing-xs) var(--spacing-sm);
+  border: 1px solid #dee2e6;
+  border-radius: 4px;
+  color: var(--color-primary);
+  text-decoration: none;
+  transition: all 0.3s ease;
+}
+
+.nav-links .page-numbers:hover {
+  background-color: var(--color-primary);
+  color: #fff;
+  border-color: var(--color-primary);
+  text-decoration: none;
+}
+
+.nav-links .page-numbers.current {
+  background-color: var(--color-primary);
+  color: #fff;
+  border-color: var(--color-primary);
+}
+
+.nav-links .page-numbers.dots {
+  border: none;
+}
+
+/* ==========================================================================
+   Post Navigation
+   ========================================================================== */
+
+.post-navigation {
+  margin-top: var(--spacing-xxl);
+  padding-top: var(--spacing-xl);
+  border-top: 1px solid #e9ecef;
+}
+
+.post-navigation .nav-links {
+  display: grid;
+  gap: var(--spacing-lg);
+}
+
+@media (min-width: 768px) {
+  .post-navigation .nav-links {
+    grid-template-columns: 1fr 1fr;
+  }
+}
+
+.post-navigation a {
+  display: block;
+  padding: var(--spacing-lg);
+  border: 1px solid #dee2e6;
+  border-radius: 4px;
+  text-decoration: none;
+  transition: all 0.3s ease;
+}
+
+.post-navigation a:hover {
+  border-color: var(--color-primary);
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+  text-decoration: none;
+}
+
+.nav-subtitle {
+  display: block;
+  font-size: 0.875rem;
+  color: var(--color-secondary);
+  margin-bottom: var(--spacing-xs);
+}
+
+.nav-title {
+  display: block;
+  font-weight: 600;
+  color: var(--color-dark);
+}
+
+/* ==========================================================================
+   404 Error Page
+   ========================================================================== */
+
+.error-404 {
+  text-align: center;
+  max-width: 800px;
+  margin: 0 auto;
+  padding: var(--spacing-xxl) var(--spacing-lg);
+}
+
+.error-404 .page-header {
+  border-bottom: none;
+  margin-bottom: var(--spacing-xl);
+}
+
+.error-404 .page-title {
+  font-size: 3rem;
+  color: var(--color-primary);
+}
+
+.error-message {
+  font-size: 1.125rem;
+  color: var(--color-secondary);
+  margin-bottom: var(--spacing-xxl);
+}
+
+.error-actions {
+  text-align: left;
+}
+
+.error-actions h2,
+.error-actions h3 {
+  margin-top: var(--spacing-xl);
+  margin-bottom: var(--spacing-md);
+}
+
+.error-suggestions,
+.recent-posts-list,
+.categories-list {
+  list-style: none;
+  padding: 0;
+  margin: 0;
+}
+
+.error-suggestions li,
+.recent-posts-list li,
+.categories-list li {
+  padding: var(--spacing-sm) 0;
+  border-bottom: 1px solid #e9ecef;
+}
+
+.error-suggestions li:last-child,
+.recent-posts-list li:last-child,
+.categories-list li:last-child {
+  border-bottom: none;
+}
+
+.category-count {
+  color: var(--color-secondary);
+  font-size: 0.875rem;
+  margin-left: var(--spacing-xs);
+}
+
+.recent-posts-section,
+.categories-section {
+  margin-top: var(--spacing-xl);
+}
+
+/* ==========================================================================
+   Front Page
+   ========================================================================== */
+
+.front-page .hero-section {
+  margin-bottom: var(--spacing-xxl);
+  border-radius: 8px;
+  overflow: hidden;
+}
+
+.front-page .hero-section img {
+  width: 100%;
+  height: auto;
+  max-height: 500px;
+  object-fit: cover;
+}
+
+/* ==========================================================================
+   Page Links (Paginated Posts)
+   ========================================================================== */
+
+.page-links {
+  margin-top: var(--spacing-xl);
+  padding-top: var(--spacing-lg);
+  border-top: 1px solid #e9ecef;
+  font-weight: 600;
+}
+
+.page-links a {
+  display: inline-block;
+  margin: 0 var(--spacing-xs);
+  padding: var(--spacing-xs) var(--spacing-sm);
+  border: 1px solid #dee2e6;
+  border-radius: 4px;
+  text-decoration: none;
+}
+
+.page-links a:hover {
+  background-color: var(--color-primary);
+  color: #fff;
+  border-color: var(--color-primary);
+  text-decoration: none;
+}
+
+/* ==========================================================================
+   Responsive Media
+   ========================================================================== */
+
+@media (max-width: 767px) {
+  h1 { font-size: 2rem; }
+  h2 { font-size: 1.75rem; }
+  h3 { font-size: 1.5rem; }
+  h4 { font-size: 1.25rem; }
+
+  .content-wrapper {
+    padding: var(--spacing-md);
+    grid-template-columns: 1fr;
+  }
+
+  .archive-posts article {
+    grid-template-columns: 1fr;
+  }
+
+  .error-404 .page-title {
+    font-size: 2rem;
+  }
+}

wp-content/themes/apus-theme/inc/enqueue-scripts.php

@@ -76,6 +76,22 @@ function apus_enqueue_bootstrap() {
 
 add_action('wp_enqueue_scripts', 'apus_enqueue_bootstrap', 5);
 
+/**
+ * Enqueue main theme stylesheet
+ * FASE 1 - Este es el archivo CSS principal del tema
+ */
+function apus_enqueue_main_stylesheet() {
+    wp_enqueue_style(
+        'apus-main-style',
+        get_template_directory_uri() . '/assets/css/style.css',
+        array('apus-variables'),
+        filemtime(get_template_directory() . '/assets/css/style.css'),
+        'all'
+    );
+}
+
+add_action('wp_enqueue_scripts', 'apus_enqueue_main_stylesheet', 5);
+
 /**
  * Enqueue FASE 2 CSS - Template RDash Component Styles (Issues #58-64)
  *

wp-content/themes/apus-theme/style.css

@@ -15,651 +15,10 @@ Domain Path: /languages
 Tags: blog, custom-menu, featured-images, footer-widgets, performance, accessibility-ready, translation-ready
 */
 
-/* ==========================================================================
+/*
-   CSS Variables
+ * IMPORTANTE: Los estilos CSS del tema están en:
-   ========================================================================== */
+ * assets/css/style.css
-
+ *
-:root {
+ * Este archivo solo contiene el header obligatorio de WordPress.
-  /* Typography - Using system fonts by default (defined in fonts.css) */
+ * Los estilos se cargan mediante wp_enqueue_style() en functions.php
-  /* These will be overridden by fonts.css custom properties */
+ */
-  --font-primary: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
-  --font-secondary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
-  --font-headings: Avenir, "Avenir Next LT Pro", Montserrat, Corbel, "URW Gothic", source-sans-pro, sans-serif;
-  --font-code: "Consolas", "Monaco", "Courier New", Courier, monospace;
-
-  /* Font Sizes - Fluid typography scale */
-  --font-size-xs: 0.75rem;     /* 12px */
-  --font-size-sm: 0.875rem;    /* 14px */
-  --font-size-base: 1rem;      /* 16px */
-  --font-size-lg: 1.125rem;    /* 18px */
-  --font-size-xl: 1.25rem;     /* 20px */
-  --font-size-2xl: 1.5rem;     /* 24px */
-  --font-size-3xl: 1.875rem;   /* 30px */
-  --font-size-4xl: 2.25rem;    /* 36px */
-
-  /* Line Heights */
-  --line-height-none: 1;
-  --line-height-tight: 1.25;
-  --line-height-normal: 1.5;
-  --line-height-relaxed: 1.75;
-  --line-height-loose: 2;
-
-  /* Font Weights */
-  --font-weight-light: 300;
-  --font-weight-normal: 400;
-  --font-weight-medium: 500;
-  --font-weight-semibold: 600;
-  --font-weight-bold: 700;
-
-  /* Colors - WCAG AA compliant (minimum 4.5:1 contrast ratio) */
-  --color-primary: #0056b3;      /* Contrast ratio 7.53:1 against white */
-  --color-secondary: #5a6268;    /* Contrast ratio 7.04:1 against white */
-  --color-success: #1e7e34;      /* Contrast ratio 5.91:1 against white */
-  --color-danger: #c81e1e;       /* Contrast ratio 6.12:1 against white */
-  --color-warning: #856404;      /* Contrast ratio 7.51:1 against white */
-  --color-info: #117a8b;         /* Contrast ratio 5.34:1 against white */
-  --color-light: #f8f9fa;
-  --color-dark: #212529;
-  --color-text: #212529;         /* Contrast ratio 15.52:1 against white */
-  --color-bg: #ffffff;
-
-  /* Spacing */
-  --spacing-xs: 0.25rem;
-  --spacing-sm: 0.5rem;
-  --spacing-md: 1rem;
-  --spacing-lg: 1.5rem;
-  --spacing-xl: 2rem;
-  --spacing-xxl: 3rem;
-
-  /* Header specific variables */
-  --header-height: 70px;
-  --header-bg: #ffffff;
-  --header-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
-
-  /* Z-index scale */
-  --z-header: 1000;
-  --z-mobile-menu: 999;
-  --z-overlay: 998;
-}
-
-/* ==========================================================================
-   Reset & Base Styles
-   ========================================================================== */
-
-* {
-  box-sizing: border-box;
-}
-
-html {
-  font-size: 16px;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-body {
-  margin: 0;
-  padding: 0;
-  font-family: var(--font-primary);
-  font-size: 1rem;
-  line-height: 1.6;
-  color: var(--color-text);
-  background-color: var(--color-bg);
-}
-
-/* ==========================================================================
-   Typography
-   ========================================================================== */
-
-h1, h2, h3, h4, h5, h6 {
-  margin-top: 0;
-  margin-bottom: 0.5em;
-  font-family: var(--font-headings);
-  font-weight: var(--font-weight-semibold);
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