/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
  /* Colors - Light Mode */
  --color-navy: #0d1b2a;
  --color-steel: #1b263b;
  --color-blue: #3b82f6;
  --color-blue-hover: #2563eb;
  --color-background: #f8fafc;
  --color-surface: #ffffff;
  --color-text-primary: #121212;
  --color-text-secondary: #4b5563;
  --color-border: #e2e8f0;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Merriweather", Georgia, serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-3xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-medium: 800px;
  --max-width-narrow: 720px;

  /* Transitions */
  --transition: all 0.3s ease;
}

/* FORZAR CENTRADO DE FOOTER */
footer.footer, 
.footer p {
    text-align: center !important;
    display: block !important;
    width: 100% !important;
    margin: 0 auto !important;
}

.footer {
    padding: 60px 0 !important; /* Más espacio arriba y abajo */
    border-top: 1px solid rgba(226, 232, 240, 0.1) !important; /* Borde sutil */
}

/* FORZAR ESTILO DE SECCIÓN CTA */
section.cta-section {
    background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
    padding: 80px 0 ;
    text-align: center ;
    display: block ;
    width: 100% ;
}

.cta-content {
    max-width: 800px ;
    margin: 0 auto ;
    display: flex ;
    flex-direction: column ;
    align-items: center ; /* Centra el botón */
    justify-content: center ;
}

.cta-title {
    color: #ffffff;
    font-size: 2.5rem ;
    margin-bottom: 1rem ;
}

.cta-subtext {
    color: rgba(255,255,255,0.8);
    margin-bottom: 2rem ;
}

.cta-button {
  display: inline-flex ;
  align-items: center ; /* Centra verticalmente texto e icono */
  justify-content: center ;
  gap: 12px ;            /* Espacio horizontal entre texto e icono */
  
  background-color: var(--color-blue) ;
  color: white ;
  padding: 14px 32px ;
  border-radius: 8px ;   /* Bordes ligeramente redondeados */
  font-weight: 600 ;
  text-decoration: none ;
  line-height: 1 ;       /* Vital para que el texto no empuje el botón */
  transition: var(--transition) ;
}

.cta-button svg {
  display: block ;       /* Evita espacios extra debajo del icono */
  width: 20px ;
  height: 20px;
  flex-shrink: 0;                  /* Evita que el icono se deforme */
}

.cta-button:hover {
  background-color: var(--color-blue-hover);
  color: #e2e8f0;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(59, 130, 246, 0.4);
}

[data-theme="dark"] {
  --color-background: #0d1b2a;
  --color-surface: #1b263b;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-border: #334155;
}

/* LA CLAVE PARA "READ MY ARTICLES": Inversión de colores */
/* Usamos selectores con ID o !important si el diseño original es muy rígido */
[data-theme="dark"] section.cta-section, [data-theme="dark"] .cta-title, [data-theme="dark"] .cta-subtext {
    background: #f8fafc !important; /* Fondo claro en modo noche */
    color: #0d1b2a !important;            /* Texto oscuro en modo noche */
}

[data-theme="dark"] section.cta-section .btn-primary {
    background: #0d1b2a !important;
    color: #f8fafc !important;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
  transition: var(--transition);
}

/* ===========================
   Typography
   =========================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3rem;
}
h2 {
  font-size: 2.5rem;
}
h3 {
  font-size: 2rem;
}
h4 {
  font-size: 1.5rem;
}
h5 {
  font-size: 1.25rem;
}
h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-blue-hover);
}

/* ===========================
   Layout Containers
   =========================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.container-medium {
  max-width: var(--max-width-medium);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.article-container {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section-alt {
  background-color: var(--color-surface);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-navy);
}

[data-theme="dark"] .section-title {
  color: var(--color-text-primary);
}

/* ===========================
   Navigation
   =========================== */
.navbar {
  position: sticky;
  top: 0;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
  z-index: 1000;
  transition: var(--transition);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy);
  z-index: 1001;
}

[data-theme="dark"] .nav-brand {
  color: var(--color-text-primary);
}

/* Added mobile menu toggle button */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all 0.3s ease;
}

.mobile-menu-toggle.active .hamburger:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.nav-links {
  display: flex;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--color-blue);
}

/* Added active state styling for current page navigation */
.nav-links a.active {
  color: var(--color-blue);
  font-weight: 600;
  position: relative;
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-blue);
}

.nav-controls {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.icon-btn:hover {
  color: var(--color-blue);
}

.sun-icon {
  display: block;
}

.moon-icon {
  display: none;
}

[data-theme="dark"] .sun-icon {
  display: none;
}

[data-theme="dark"] .moon-icon {
  display: block;
}

.lang-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: var(--spacing-xs) var(--spacing-sm);
  cursor: pointer;
  display: flex;
  gap: var(--spacing-xs);
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
}

.lang-option {
  color: var(--color-text-secondary);
  transition: var(--transition);
  cursor: pointer;
}

.lang-option.active {
  color: var(--color-blue);
}

.lang-divider {
  color: var(--color-border);
}

/* Added responsive navigation for mobile */
@media (max-width: 968px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 280px;
    background-color: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: px 32px 32px;
    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    overflow-y: auto;
    z-index: 1000;
	gap: var(--spacing-md);
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links a {
    width: 100%;
    padding: 16px 0;
    font-size: 1.125rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links a:first-child {
    margin-top: 0;
  }

  .nav-links a.active::after {
    bottom: 0;
    left: 0;
    width: 4px;
    height: 100%;
  }

  .nav-controls {
    z-index: 1001;
  }
}

@media (max-width: 768px) {
  .nav-brand {
    font-size: 1.25rem;
  }

  .nav-links {
    width: 100%;
    right: -100%;
  }

  .nav-links.active {
    right: 0;
  }
}

/* ===========================
   Hero Section
   =========================== */
.hero {
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-photo {
  margin-bottom: var(--spacing-md);
  display: flex;
  justify-content: center;
}

.profile-photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-blue);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.2);
}

.hero-name {
  font-size: 4rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-navy);
}

[data-theme="dark"] .hero-name {
  color: var(--color-text-primary);
}

.hero-role {
  font-size: 1.5rem;
  color: var(--color-blue);
  margin-bottom: var(--spacing-sm);
}

.hero-tagline {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===========================
   About Section
   =========================== */
.about-text {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.125rem;
  line-height: 1.7;
  text-align: center;
  color: var(--color-text-secondary);
}

/* ===========================
   Experience Section
   =========================== */
.experience-list {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  padding-left: var(--spacing-md);
}

.experience-list::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-blue), var(--color-steel));
}

.experience-item {
  background-color: var(--color-background);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 4px solid var(--color-blue);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.experience-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--spacing-md) - 8px);
  top: var(--spacing-md);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--color-blue);
  border: 3px solid var(--color-background);
  box-shadow: 0 0 0 2px var(--color-blue);
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: var(--spacing-sm);
  gap: var(--spacing-sm);
}

.experience-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.experience-company {
  font-size: 1rem;
  color: var(--color-blue);
  font-weight: 600;
}

.experience-years {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.experience-description {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===========================
   Education Section
   =========================== */
.education-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.education-item {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.education-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.education-institution {
  color: var(--color-blue);
  font-weight: 600;
}

.education-year {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* ===========================
   Projects Section
   =========================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.project-card {
  background-color: var(--color-background);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.1);
  border-color: var(--color-blue);
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.project-description {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===========================
   publications Section
   =========================== */
/* Added styles for company/institution logos in experience and education */
.company-logo,
.institution-logo,
.project-logo {
  width: 5rem; 
  height: 5rem;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  padding: 8px;
}

.experience-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
}

.education-header {
  display: flex;
  align-items: start;
  gap: var(--spacing-sm);
}

.education-content {
  flex: 1;
}

.project-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

/* Changed publications styles to Publications styles */
.publications-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 900px;
  margin: 0 auto;
}

.publication-card {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.publication-card:hover {
  border-color: var(--color-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
}

.publication-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.publication-title a {
  color: var(--color-text-primary);
  transition: var(--transition);
}

.publication-title a:hover {
  color: var(--color-blue);
}

.publication-authors {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
}

.publication-journal {
  color: var(--color-blue);
  font-size: 0.875rem;
  font-weight: 600;
}

/* Added social links styles */
.social-links {
  text-align: center;
  margin-bottom: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.social-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: white;
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(59, 130, 246, 0.2);
}

.social-link svg {
  width: 24px;
  height: 24px;
}
.publications-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  max-width: 1000px;
  margin: 0 auto;
}

.skill-category {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.skill-category-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-blue);
  margin-bottom: var(--spacing-sm);
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.skill-item {
  background-color: var(--color-background);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 6px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

/* ===========================
   Principles Section
   =========================== */
.principles-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.principle-item {
  background-color: var(--color-background);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 4px solid var(--color-blue);
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  transition: var(--transition);
}

.principle-item:hover {
  border-left-color: var(--color-blue-hover);
  transform: translateX(4px);
}

/* ===========================
   Now Section
   =========================== */
/* Removed Now Page styles as now.html has been deleted */

/* ===========================
   Awards Section
   =========================== */
.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.awards-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-md);
  max-width: 1000px;
  margin: 0 auto;
}

.award-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-md);
  transition: var(--transition);
  display: flex;
  gap: var(--spacing-md);
}

.award-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.1);
  border-color: var(--color-blue);
}

.award-icon {
  font-size: 2.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.award-content {
  flex: 1;
}

.award-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.award-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0;
}

.award-year {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-weight: 600;
  white-space: nowrap;
}

.award-organization {
  color: var(--color-blue);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.award-description {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 0;
}

/* ===========================
   Articles Section
   =========================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
  max-width: 1000px;
  margin: 0 auto;
}

.article-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-md);
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.1);
  border-color: var(--color-blue);
}

.article-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.article-card-category {
  background-color: var(--color-blue);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.article-card-date {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.article-card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  width: 100%;
}

.article-tag {
  background-color: var(--color-background);
  color: var(--color-text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.75rem;
  border: 1px solid var(--color-border);
}

.article-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
}

.article-card-excerpt {
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
  flex: 1;
}

.article-card-link {
  color: var(--color-blue);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.article-card-link:hover {
  color: var(--color-blue-hover);
  gap: 0.75rem;
}

/* Articles Page Specific Styles */
.articles-hero {
  padding: var(--spacing-lg) 0 var(--spacing-md);
  text-align: center;
}

.back-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-blue);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  transition: var(--transition);
}

.back-link:hover {
  color: var(--color-blue-hover);
}

.articles-title {
  font-size: 3rem;
  color: var(--color-navy);
  margin-bottom: var(--spacing-sm);
}

[data-theme="dark"] .articles-title {
  color: var(--color-text-primary);
}

.articles-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
}

.filters-section {
  padding: var(--spacing-md) 0;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.filter-group {
  margin-bottom: var(--spacing-md);
}

.filter-group:last-child {
  margin-bottom: 0;
}

.filter-label {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  display: block;
}

.filters {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-background);
  color: var(--color-text-secondary);
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}

.filter-btn:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.filter-btn.active {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: white;
}

.tag-filters {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.tag-filter-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-background);
  color: var(--color-text-secondary);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: var(--transition);
}

.tag-filter-btn:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.tag-filter-btn.active {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: white;
}

.articles-section {
  padding: var(--spacing-lg) 0;
}

/* ===========================
   Principles Section
   =========================== */
.principles-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.principle-item {
  background-color: var(--color-background);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 4px solid var(--color-blue);
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  transition: var(--transition);
}

.principle-item:hover {
  border-left-color: var(--color-blue-hover);
  transform: translateX(4px);
}

/* ===========================
   Article Page Styles
   =========================== */
.article {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-background);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

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

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

.breadcrumb-separator {
  color: var(--color-text-secondary);
}

.article-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom:\
}

/* Estilo para el badge de categoría */
.category-badge {
    display: inline-block;
    background-color: var(--color-blue);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.5px;
}

/* Si quieres que flote sobre la imagen */
.article-card-image {
    position: relative;
}

.article-card-image .category-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    margin-bottom: 0;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

/* Espaciado para los botones de tags */
.tag-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.tag-filter-btn {
    background: #e2e8f0;
    border: none;
    padding: 5px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: 0.3s;
}

.tag-filter-btn.active {
    background: var(--color-blue);
    color: white;
}

/* Redes sociales en el footer */
.social-links-footer {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.article-card.hidden {
    display: none !important;
}

/* Ajuste para evitar desbordes en tarjetas de experiencia */
@media (max-width: 480px) {
    .experience-header {
        flex-direction: column; /* Apila título y fecha verticalmente */
        align-items: flex-start;
        gap: 0.5rem;
    }

    .experience-years {
        position: static; /* Elimina cualquier posicionamiento absoluto si lo hubiera */
        font-size: 0.85rem;
        color: var(--color-text-secondary);
    }
    
    .experience-item {
        padding: 1.25rem; /* Asegura que haya aire dentro de la tarjeta */
    }
}

/* Estilos para el Logo */
.logo-container {
    display: flex;
    align-items: center;
}

.nav-logo {
    width: 40px;
    height: 40px;
    color: var(--color-text); /* Se adapta al modo claro/oscuro */
}

@media (max-width: 768px) {
    .experience-header {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 8px;
    }

    .experience-years {
        font-size: 0.85rem;
        opacity: 0.8;
    }

    /* Ocultar texto del logo en móviles muy pequeños si es necesario */
    @media (max-width: 400px) {
        .logo-text { display: none; }
    }
}

.nav-links a {
    position: relative;
    padding: 0.5rem 1rem; /* Añade espacio a los lados del texto */
    margin: 0 0.25rem;    /* Separa un link de otro */
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

/* Si usas un subrayado o indicador de color activo */
.nav-links a.active::after,
.nav-links a:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 10%;  /* El color empieza un poco después del borde */
    width: 80%; /* El color no llega hasta el final del padding del texto */
    height: 3px;
    background-color: var(--color-blue);
    border-radius: 2px;
}

.experience-header {
    display: flex;
    flex-wrap: wrap; /* Permite que la fecha baje si no hay sitio */
    gap: 10px;
}

.experience-years {
    flex-shrink: 0;
    font-size: 0.85rem;
    padding-top: 4px; /* Alinea visualmente con el título */
}


@media (max-width: 768px) {
  .experience-item {
       position: relative; /* Crucial para que el ::before se posicione bien */
       margin-left: 0.2em; /* Da espacio extra para el cronograma */
  }
	
 .experience-item::before {
      content: "";
      position: absolute;
      left: -45px;
      top: var(--spacing-md);
      width: 1rem;
      height: 1rem;
      border-radius: 50%;
      background-color: var(--color-blue);
      border: 3px solid var(--color-background);
      box-shadow: 0 0 0 2px var(--color-blue);
    } 
}

/* Contenedor del Loader */
.loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Usa la variable de fondo que cambia entre temas */
    background-color: var(--color-background); 
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

/* El círculo (spinner) */
.loader {
    width: 50px;
    height: 50px;
    /* Borde tenue basado en el color de texto secundario del tema */
    border: 5px solid var(--color-border); 
    /* El color principal del spinner */
    border-top: 5px solid var(--color-blue); 
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-hidden {
    opacity: 0;
    visibility: hidden;
}

/* style.css */
.tag-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.tag-filter-btn {
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tag-filter-btn.active,
.tag-filter-btn:hover {
    background: var(--color-blue);
    color: white;
    border-color: var(--color-blue);
}

ul {
    list-style-type: square;
    padding-left: 20px;
	margin: 1em;
}

/* Contenedor principal de la imagen */
.ilustracion-articulo {
    margin: 30px auto;
    max-width: 90%;
    text-align: center;
    background-color: #fff;
    padding: 10px;
    border: 1px solid #ddd;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

/* Estilo de la imagen */
.ilustracion-articulo img {
    width: 100%;
    height: auto;
    display: block;
    border: 1px solid #eee;
}

/* Pie de foto (Caption) con la tipografía que pediste */
.ilustracion-articulo figcaption {
    margin-top: 15px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1.1em;
    font-weight: 500;
    color: #444;
    text-align: center;
}

/* Efecto opcional: Si quieres que la imagen sea flotante en pantallas grandes */
@media (min-width: 768px) {
    .flotar-derecha {
        float: right;
        width: 40%;
        margin-left: 20px;
    }
    
    .flotar-izquierda {
        float: left;
        width: 40%;
        margin-right: 20px;
    }
}

/* Contenedor del autor */
.autor-container {
    display: flex;
    align-items: center;
    justify-content: center; /* Centrado */
    margin: 20px 0 40px 0;
    padding: 15px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

/* Estilo del nombre */
.autor-nombre {
    font-weight: 600;
    color: #555;
    font-size: 0.95em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Prefijo "Por" o "Escrito por" */
.autor-prefix {
    color: #999;
    font-style: italic;
    margin-right: 8px;
    font-size: 0.9em;
}

/* Si quieres añadir una pequeña línea decorativa */
.autor-container::before, .autor-container::after {
    content: "";
    flex: 1;
    height: 1px;
    background: #f0f0f0;
    margin: 0 20px;
}