/* Estilos para artículos - Diseño estilo Factorial */

:root {
  --bg: linear-gradient(135deg, #E3F2FD 0%, #F3E5F5 100%);
  --card: rgba(255, 255, 255, 0.95);
  --brand: #FF8A80;
  --brand-2: #81C784;
  --brand-3: #64B5F6;
  --brand-4: #BA68C8;
  --text: #37474F;
  --muted: #78909C;
  --border: rgba(255, 255, 255, 0.3);
  --shadow: rgba(0, 0, 0, 0.08);
  --shadow-hover: rgba(0, 0, 0, 0.12);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius: 16px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Header estilo Factorial */
.article-hero {
  background: white;
  border-bottom: 1px solid #f0f0f0;
  padding: 3rem 0;
  margin-bottom: 0;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 3rem;
  align-items: start;
}

.hero-left h1 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.breadcrumb {
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.breadcrumb a {
  color: var(--brand);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb a:hover {
  color: var(--brand-3);
}

.article-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--muted);
}

.article-meta span {
  background: #f8f9fa;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius);
  border: 1px solid #e9ecef;
}

/* CTA Hero estilo Factorial */
.cta-hero {
  background: linear-gradient(135deg, rgba(255, 138, 128, 0.1) 0%, rgba(129, 199, 132, 0.1) 100%);
  border: 2px solid var(--brand);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: 0 4px 20px rgba(255, 138, 128, 0.2);
}

.cta-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cta-hero h3 {
  color: var(--brand);
  margin-bottom: 1rem;
  font-size: 1.3rem;
  font-weight: 600;
}

.cta-hero p {
  color: var(--muted);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.cta-hero-link {
  display: inline-block;
  color: var(--brand-3);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.cta-hero-link:hover {
  color: var(--brand);
  transform: translateX(3px);
}

/* Layout de dos columnas */
.article-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  align-items: start;
}

/* Sidebar */
.article-sidebar {
  position: sticky;
  top: 2rem;
  height: fit-content;
}

.sidebar-section {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 15px var(--shadow);
  border: 1px solid #f0f0f0;
}

.sidebar-section h3 {
  color: var(--text);
  margin-bottom: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
}

/* Tabla de contenidos desplegable */
.toc-toggle {
  width: 100%;
  background: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}

.toc-toggle:hover {
  background: #e9ecef;
}

.toc-arrow {
  transition: var(--transition);
}

.toc-arrow-rotated {
  transform: rotate(180deg);
}

.toc-nav {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.toc-nav.toc-open {
  max-height: 500px;
  margin-top: 1rem;
}

.toc-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc-nav li {
  margin-bottom: 0.5rem;
}

.toc-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  display: block;
  padding: 0.5rem;
  border-radius: var(--radius);
}

.toc-nav a:hover {
  color: var(--brand);
  background: rgba(255, 138, 128, 0.1);
}

/* Calculadora estática */
.mini-calculator {
  background: #f8f9fa;
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.calc-form .form-group {
  margin-bottom: 1rem;
}

.calc-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.mode-buttons {
  display: flex;
  gap: 0.5rem;
}

.mode-btn {
  flex: 1;
  background: white;
  border: 1px solid #e9ecef;
  border-radius: var(--radius);
  padding: 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.mode-btn.active {
  background: var(--brand);
  color: white;
  border-color: var(--brand);
}

.time-input, .latency-select {
  width: 100%;
  background: white;
  border: 1px solid #e9ecef;
  border-radius: var(--radius);
  padding: 0.5rem;
  font-size: 0.9rem;
}

.calc-btn {
  width: 100%;
  background: var(--brand);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 0.5rem;
}

.calc-btn:hover {
  background: var(--brand-3);
  transform: translateY(-1px);
}

.calc-result {
  background: white;
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: 1rem;
}

.calc-result p {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.8rem;
}

.result-times {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.time-option {
  background: rgba(129, 199, 132, 0.1);
  color: var(--brand-2);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 500;
  text-align: center;
}

.full-calculator-link {
  display: block;
  text-align: center;
  color: var(--brand);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.full-calculator-link:hover {
  color: var(--brand-3);
}

/* Contenido principal */
.article-content {
  background: white;
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: 0 2px 15px var(--shadow);
  border: 1px solid #f0f0f0;
}

/* Imagen hero con overlay */
.intro-image {
  position: relative;
  margin-bottom: 2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 20px var(--shadow);
}

.hero-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
  color: white;
  padding: 2.5rem;
  font-size: 1.1rem;
  line-height: 1.7;
}

.overlay-title {
  color: white;
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.image-overlay p {
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.95);
}

.image-overlay strong {
  color: white;
  font-weight: 600;
}

.intro {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0.3) 100%);
  border-radius: var(--radius);
  border-left: 4px solid var(--brand);
}

.article-content h2 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text);
  margin: 2.5rem 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--brand-3);
}

.article-content h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
  margin: 2rem 0 1rem 0;
}

.article-content h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin: 1.5rem 0 0.5rem 0;
}

.article-content p {
  margin-bottom: 1.2rem;
  font-size: 1rem;
  line-height: 1.7;
}

.article-content ul {
  margin: 1rem 0 1.5rem 2rem;
}

.article-content li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.article-content strong {
  color: var(--brand-3);
  font-weight: 600;
}

.article-content a {
  color: var(--brand);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.article-content a:hover {
  color: var(--brand-3);
  border-bottom-color: var(--brand-3);
}

/* Cajas de información */
.info-box {
  background: linear-gradient(135deg, rgba(100, 181, 246, 0.1) 0%, rgba(186, 104, 200, 0.1) 100%);
  border: 1px solid rgba(100, 181, 246, 0.2);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}

.info-box h4 {
  color: var(--brand-3);
  margin-bottom: 1rem;
}

.info-box ul {
  margin: 0;
  list-style: none;
}

.info-box li {
  padding: 0.3rem 0;
  border-bottom: 1px solid rgba(100, 181, 246, 0.1);
}

.info-box li:last-child {
  border-bottom: none;
}

/* CTA Boxes */
.final-cta {
  background: linear-gradient(135deg, rgba(255, 138, 128, 0.15) 0%, rgba(129, 199, 132, 0.15) 100%);
  border: 2px solid var(--brand);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin: 3rem 0 2rem 0;
  text-align: center;
  box-shadow: 0 6px 25px rgba(255, 138, 128, 0.25);
}

.final-cta h3 {
  color: var(--brand);
  margin-bottom: 1rem;
  font-size: 1.6rem;
}

.final-cta p {
  color: var(--muted);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.cta-button-large {
  display: inline-block;
  background: #E57373;
  color: white;
  padding: 1rem 2.5rem;
  border-radius: var(--radius);
  text-decoration: none;
  border-bottom: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(229, 115, 115, 0.3);
}

.final-cta .cta-button-large,
.final-cta .cta-button-large:visited {
  color: white;
  border-bottom: none;
}

.cta-button-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(229, 115, 115, 0.4);
}

/* Artículos relacionados */
.related-articles {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 2px 15px var(--shadow);
  border: 1px solid #f0f0f0;
  margin-top: 2rem;
}

.related-articles h3 {
  color: var(--text);
  margin-bottom: 1.5rem;
  font-size: 1.4rem;
  border-bottom: 2px solid var(--brand-3);
  padding-bottom: 0.5rem;
}

.related-articles ul {
  list-style: none;
  margin: 0;
}

.related-articles li {
  margin-bottom: 1rem;
  padding: 0.8rem;
  border-radius: var(--radius);
  transition: var(--transition);
}

.related-articles li:hover {
  background: rgba(255, 255, 255, 0.5);
  transform: translateX(5px);
}

.related-articles a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.related-articles a:hover {
  color: var(--brand);
}

/* Footer del artículo */
.article-footer {
  background: white;
  border-top: 1px solid #f0f0f0;
  padding: 2rem 0;
  text-align: center;
  margin-top: 3rem;
}

.article-footer p {
  color: var(--muted);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.back-home {
  display: inline-block;
  color: var(--brand);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--brand);
}

.back-home:hover {
  background: var(--brand);
  color: white;
  transform: translateY(-1px);
}

/* Scroll suave para enlaces internos */
html {
  scroll-behavior: smooth;
}

/* Ajuste para el scroll con header fijo */
.article-content h2[id] {
  scroll-margin-top: 100px;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .article-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .article-sidebar {
    position: static;
    order: 2;
  }
  
  .article-content {
    order: 1;
  }
}

@media (max-width: 768px) {
  .hero-content {
    padding: 0 1rem;
  }
  
  .article-layout {
    padding: 0 1rem;
  }
  
  .hero-left h1 {
    font-size: 2.2rem;
  }
  
  .article-content {
    padding: 2rem 1.5rem;
  }
  
  .article-meta {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .cta-hero {
    padding: 1.5rem;
  }
}

/* Animaciones suaves */
.article-content {
  animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.sidebar-section {
  animation: fadeInScale 0.5s ease-out;
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Estilos para la tabla de sueño por edad */
.sleep-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border);
}

.sleep-table thead {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-3) 100%);
  color: white;
}

.sleep-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
}

.sleep-table td {
  padding: 1rem;
  border-bottom: 1px solid #f0f0f0;
  vertical-align: top;
}

.sleep-table tbody tr:hover {
  background: rgba(255, 138, 128, 0.05);
  transition: var(--transition);
}

.sleep-table tbody tr:last-child td {
  border-bottom: none;
}

.sleep-table strong {
  color: var(--text);
  font-weight: 600;
}

/* Responsive para la tabla */
@media (max-width: 768px) {
  .sleep-table {
    font-size: 0.9rem;
  }
  
  .sleep-table th,
  .sleep-table td {
    padding: 0.75rem 0.5rem;
  }
  
  .sleep-table th:last-child,
  .sleep-table td:last-child {
    display: none; /* Ocultar la columna de consideraciones en móvil */
  }
}

/* Mejoras para info-box */
.info-box {
  background: linear-gradient(135deg, rgba(255, 138, 128, 0.05) 0%, rgba(129, 199, 132, 0.05) 100%);
  border: 2px solid var(--brand);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
  box-shadow: 0 4px 20px rgba(255, 138, 128, 0.1);
}

.info-box h4 {
  color: var(--brand);
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
}

/* Estilos para el contenido relacionado */
.related-content {
  background: #f8f9fa;
  border-radius: var(--radius);
  padding: 2rem;
  margin: 2rem 0;
  border-left: 4px solid var(--brand);
}

.related-content h3 {
  color: var(--text);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.related-content a {
  color: var(--brand);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.related-content a:hover {
  color: var(--brand-3);
  text-decoration: underline;
}

/* Estilos para la sección de referencias */
.references-section {
  background: #f8f9fa;
  border-radius: var(--radius);
  padding: 2rem;
  margin: 2rem 0;
  border-left: 4px solid var(--brand-2);
}

.references-section h3 {
  color: var(--text);
  margin-bottom: 1rem;
  font-size: 1.3rem;
  border-bottom: 2px solid var(--brand-2);
  padding-bottom: 0.5rem;
}

.references-section > p {
  margin-bottom: 1.5rem;
  color: var(--muted);
  font-style: italic;
}

.references-list {
  margin: 1.5rem 0;
  padding-left: 1.5rem;
}

.references-list li {
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.references-list a {
  color: var(--brand-3);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  border-bottom: 1px dotted var(--brand-3);
}

.references-list a:hover {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

.references-note {
  background: rgba(129, 199, 132, 0.1);
  border: 1px solid var(--brand-2);
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text);
}

/* Estilos para los enlaces de referencia en el texto */
.article-content a[href^="#ref"] {
  color: var(--brand-3);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9em;
  vertical-align: super;
  line-height: 0;
}

.article-content a[href^="#ref"]:hover {
  color: var(--brand);
  text-decoration: underline;
}