/* ==============================================
   Recursos para Emprendedores — Estilos completos
   Mobile-first | WCAG 2.1 AA | Modo oscuro/claro
   ============================================== */

/* ---- Variables CSS ---- */
:root {
  /* Colores modo oscuro (por defecto) */
  --bg-primary: #0d0d12;
  --bg-surface: #181820;
  --bg-surface-alt: #1e1e2a;
  --text-primary: #eaeaea;
  --text-secondary: #a0a0b0;
  --text-muted: #6a6a7a;
  --color-primary: #f39c12;
  --color-primary-hover: #e67e22;
  --color-accent: #e74c3c;
  --color-green: #27ae60;
  --color-blue: #3498db;
  --color-orange: #f39c12;
  --border-color: #2a2a3a;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
  --card-bg: #1e1e2a;
  --input-bg: #22222e;
  --nav-bg: rgba(13,13,18,0.95);
  --badge-gratis-bg: #1a3a2a;
  --badge-gratis-color: #27ae60;
  --badge-freemium-bg: #3a2a1a;
  --badge-freemium-color: #f39c12;
  --badge-opensource-bg: #1a2a3a;
  --badge-opensource-color: #3498db;
  --badge-es-bg: #3a1a1a;
  --badge-es-color: #e74c3c;
  --badge-en-bg: #1a2a3a;
  --badge-en-color: #3498db;
  --badge-multi-bg: #2a1a3a;
  --badge-multi-color: #9b59b6;
  --scrollbar-bg: #181820;
  --scrollbar-thumb: #3a3a4a;
  color-scheme: dark;
}

/* Modo claro */
[data-theme="light"] {
  --bg-primary: #f5f5f0;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f0f0eb;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a5a;
  --text-muted: #8a8a9a;
  --border-color: #ddd;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --card-bg: #ffffff;
  --input-bg: #f0f0eb;
  --nav-bg: rgba(245,245,240,0.95);
  --badge-gratis-bg: #e8f8f0;
  --badge-gratis-color: #1e8449;
  --badge-freemium-bg: #fef5e7;
  --badge-freemium-color: #b7770a;
  --badge-opensource-bg: #eaf2f8;
  --badge-opensource-color: #2471a3;
  --badge-es-bg: #fce4e4;
  --badge-es-color: #c0392b;
  --badge-en-bg: #e4ecf7;
  --badge-en-color: #2471a3;
  --badge-multi-bg: #f0e4f7;
  --badge-multi-color: #7d3c98;
  --scrollbar-bg: #f0f0eb;
  --scrollbar-thumb: #ccc;
  color-scheme: light;
}

/* ---- Reset y base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

/* ---- Utilidades ---- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ---- Skip link accesibilidad ---- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-primary);
  color: #000;
  padding: 0.5rem 1rem;
  border-radius: 0 0 8px 8px;
  z-index: 10000;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* ---- Header ---- */
.site-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 2rem 0 1.5rem;
  position: relative;
}

.header-content {
  text-align: center;
}

.site-title {
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.site-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.stats-counter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-surface-alt);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}
.stats-counter strong {
  color: var(--color-primary);
}

/* Barra de búsqueda */
.search-wrapper {
  position: relative;
  max-width: 500px;
  margin: 0 auto 1rem;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-input::placeholder {
  color: var(--text-muted);
}
.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(243,156,18,0.2);
}

/* Filtros de tipo de acceso */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.filter-btn {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #000;
  font-weight: 600;
}

/* Toggle tema */
.theme-toggle {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.5rem;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  color: var(--text-primary);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}
.theme-toggle:hover {
  border-color: var(--color-primary);
  transform: scale(1.05);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ---- Navegación categorías ---- */
.category-nav {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.category-nav-inner {
  display: flex;
  overflow-x: auto;
  gap: 0.25rem;
  padding: 0.5rem 1rem;
  scrollbar-width: thin;
  -ms-overflow-style: none;
}
.category-nav-inner::-webkit-scrollbar {
  height: 4px;
}
.category-nav-inner::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 2px;
}

.nav-item {
  flex-shrink: 0;
  padding: 0.4rem 0.75rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.nav-item:hover {
  background: var(--bg-surface-alt);
  color: var(--text-primary);
}
.nav-item.active {
  background: var(--color-primary);
  color: #000;
  font-weight: 600;
}
.nav-item-emoji {
  font-size: 1rem;
}

/* ---- Contenido principal ---- */
.main-content {
  padding: 2rem 0 4rem;
}

/* Sección de categoría */
.category-section {
  margin-bottom: 3rem;
  scroll-margin-top: 60px;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.category-emoji {
  font-size: 1.5rem;
}

.category-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.category-count {
  background: var(--bg-surface-alt);
  color: var(--text-secondary);
  padding: 0.15rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Grid de tarjetas */
.resources-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

/* Tarjeta de recurso */
.resource-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  opacity: 0;
  transform: translateY(16px);
}
.resource-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease, transform 0.4s ease, box-shadow 0.2s, border-color 0.2s;
}
.resource-card:hover {
  box-shadow: var(--shadow);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.resource-card:hover.visible {
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.resource-name {
  font-size: 0.95rem;
  font-weight: 600;
}
.resource-name a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}
.resource-name a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}
.resource-name a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

.featured-star {
  color: #f1c40f;
  font-size: 1rem;
  flex-shrink: 0;
}

.resource-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

.resource-desc .highlight {
  background: rgba(243,156,18,0.2);
  padding: 0 2px;
  border-radius: 2px;
}

.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* Badges tipo acceso */
.badge--gratis {
  background: var(--badge-gratis-bg);
  color: var(--badge-gratis-color);
}
.badge--freemium {
  background: var(--badge-freemium-bg);
  color: var(--badge-freemium-color);
}
.badge--open-source {
  background: var(--badge-opensource-bg);
  color: var(--badge-opensource-color);
}

/* Badges idioma */
.badge--es {
  background: var(--badge-es-bg);
  color: var(--badge-es-color);
}
.badge--en {
  background: var(--badge-en-bg);
  color: var(--badge-en-color);
}
.badge--multi {
  background: var(--badge-multi-bg);
  color: var(--badge-multi-color);
}

.resource-notes {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-style: italic;
}

/* Estado vacío / error */
.empty-state,
.error-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-secondary);
}
.empty-state-icon,
.error-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}
.error-state {
  color: var(--color-accent);
}

.no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-secondary);
  display: none;
}
.no-results.visible {
  display: block;
}
.no-results-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.75rem;
}

/* ---- Botón scroll to top ---- */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--color-primary);
  color: #000;
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
}
.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-top:hover {
  background: var(--color-primary-hover);
  transform: scale(1.1);
}
.scroll-top:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.scroll-top.visible:hover {
  transform: scale(1.1);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.footer-update {
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.footer-links a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}
.footer-links a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

.footer-disclaimer {
  color: var(--text-muted);
  font-size: 0.78rem;
  max-width: 600px;
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* ---- Banner de cookies ---- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 1rem;
  z-index: 1000;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.3);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

.cookie-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.cookie-text a {
  color: var(--color-primary);
  text-decoration: underline;
}

.cookie-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.cookie-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 600;
}
.cookie-btn--accept {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #000;
}
.cookie-btn--accept:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}
.cookie-btn--essential {
  background: transparent;
  color: var(--text-primary);
}
.cookie-btn--essential:hover {
  border-color: var(--color-primary);
}
.cookie-btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ---- Páginas legales ---- */
.legal-page,
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}
.legal-page h1,
.legal-content h1 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.legal-page h2,
.legal-content h2 {
  font-size: 1.2rem;
  margin: 2rem 0 0.75rem;
  color: var(--color-primary);
}
.legal-page h3,
.legal-content h3 {
  font-size: 1rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--text-primary);
}
.legal-page p,
.legal-content p {
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.legal-page ul,
.legal-page ol,
.legal-content ul,
.legal-content ol {
  margin: 0.5rem 0 1rem 1.5rem;
  color: var(--text-secondary);
}
.legal-page li,
.legal-content li {
  margin-bottom: 0.35rem;
  line-height: 1.6;
}
.legal-page a,
.legal-content a {
  color: var(--color-primary);
  text-decoration: none;
}
.legal-page a:hover,
.legal-content a:hover {
  text-decoration: underline;
}

/* Fecha legal */
.legal-date {
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

/* Header legal */
.site-header--legal {
  padding: 1.5rem 0;
}
.site-header--legal .header-content {
  padding-bottom: 0;
}
.back-link {
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: color 0.2s;
}
.back-link:hover {
  color: var(--color-primary);
}
.back-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Footer legal nav (alias) */
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.footer-legal a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-legal a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}
.footer-legal a[aria-current="page"] {
  font-weight: 700;
  text-decoration: underline;
}
.footer-copy {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* Tabla de cookies */
.cookie-table-wrapper,
.table-wrapper {
  overflow-x: auto;
  margin: 1rem 0;
}
.cookie-table,
.legal-content table,
.legal-page table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.cookie-table th,
.cookie-table td,
.legal-content table th,
.legal-content table td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}
.cookie-table th,
.legal-content table th {
  background: var(--bg-surface-alt);
  color: var(--text-primary);
  font-weight: 600;
}
.cookie-table td,
.legal-content table td {
  color: var(--text-secondary);
}
.legal-content code {
  background: var(--bg-surface-alt);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.85em;
}

/* Breadcrumb legal */
.legal-breadcrumb {
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.legal-breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}
.legal-breadcrumb a:hover {
  text-decoration: underline;
}

/* ---- Breakpoints responsive ---- */

/* >= 480px */
@media (min-width: 480px) {
  .resources-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .site-title {
    font-size: 2rem;
  }
}

/* >= 768px */
@media (min-width: 768px) {
  .site-header {
    padding: 2.5rem 0 2rem;
  }
  .site-title {
    font-size: 2.25rem;
  }
  .site-subtitle {
    font-size: 1.05rem;
  }
  .cookie-banner-inner {
    flex-direction: row;
    text-align: left;
  }
  .cookie-buttons {
    flex-shrink: 0;
  }
}

/* >= 1024px */
@media (min-width: 1024px) {
  .resources-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .site-title {
    font-size: 2.5rem;
  }
}

/* >= 1200px */
@media (min-width: 1200px) {
  .resources-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .container {
    padding: 0 2rem;
  }
}

/* ---- Animación de impresión ---- */
@media print {
  .cookie-banner,
  .scroll-top,
  .theme-toggle,
  .search-wrapper,
  .filter-bar,
  .category-nav {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .resource-card {
    opacity: 1;
    transform: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}

/* ---- Preferencia de movimiento reducido ---- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}