/* Academic Stylesheet for PhD Applications */
/* Typography and Base Styles */
@import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@300;400;500;600;700&family=Source+Serif+Pro:wght@300;400;600;700&display=swap');

/* Preload critical resources */
@font-face {
  font-family: 'Source Sans Pro';
  font-display: swap;
}

@font-face {
  font-family: 'Source Serif Pro';
  font-display: swap;
}

/* Loading States */
.loading {
  opacity: 0.7;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--border-light);
  border-top: 2px solid var(--primary-navy);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

:root {
  /* Academic Color Palette */
  --primary-navy: #1a365d;
  --primary-navy-light: #2d5a87;
  --secondary-gold: #d69e2e;
  --secondary-gold-light: #f6e05e;
  
  /* Neutral Colors */
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --bg-primary: #ffffff;
  --bg-secondary: #f7fafc;
  --bg-tertiary: #edf2f7;
  
  /* Borders and Shadows */
  --border-light: #e2e8f0;
  --border-medium: #cbd5e0;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Merriweather', Georgia, serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

/* Dark Mode Variables */

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 2rem;
  font-weight: 400;
  border-bottom: 2px solid var(--secondary-gold);
  padding-bottom: var(--spacing-sm);
  display: inline-block;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-navy);
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

a {
  color: var(--primary-navy);
  text-decoration: none;
  transition: color var(--transition-fast);
  border-bottom: 1px solid transparent;
}

a:hover {
  color: var(--primary-navy-light);
  border-bottom-color: var(--primary-navy-light);
}

/* Subtle highlight for supervisor link */
a.supervisor-link {
  color: var(--primary-navy);
  font-weight: 450;
  text-decoration: none;
  transition: all var(--transition-fast);
}

a.supervisor-link:hover {
  color: var(--primary-navy-light);
}

/* Dark mode supervisor link */


/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header and Navigation */
.site-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.95);
}


.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-navy);
  text-decoration: none;
  letter-spacing: -0.025em;
  border-bottom: none;
  transition: color var(--transition-fast);
}

.logo:hover {
  color: var(--primary-navy-light);
  border-bottom: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-links a {
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--spacing-xs) var(--spacing-xs);
  border-radius: 6px;
  transition: all var(--transition-fast);
  white-space: nowrap;
  color: var(--primary-navy);
  text-decoration: none;
  border-bottom: none;
}

.nav-links a:hover,
.nav-links a.active {
  background-color: var(--bg-tertiary);
  color: var(--primary-navy);
  border-bottom: none;
}

/* Hero Section */
.hero {
  padding: var(--spacing-sm) 0;
  display: block;
  min-height: auto;
}

.hero-text h1 {
  font-size: 3rem;
  font-weight: 300;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-navy);
}

.hero-text .subtitle {
  font-size: 1.4rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: var(--spacing-lg);
}

.about-me {
  font-size: 1.3rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 800px;
  text-align: justify;
}

.hero-image img {
  width: 450px;
  height: 450px;
  border-radius: 6px;
  object-fit: cover;
  border: 2px solid var(--secondary-gold);
  box-shadow: var(--shadow-lg);
}

/* Academic CV Button */
.btn-cv {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--primary-navy);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-cv:hover {
  background: var(--primary-navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
  text-decoration: none;
  border-bottom: none;
}

/* Section Styles */
.section {
  padding: var(--spacing-2xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--primary-navy);
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--secondary-gold);
  margin: var(--spacing-md) auto 0;
  border-radius: 2px;
}

/* Academic Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-navy), var(--secondary-gold));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.card:hover::before {
  transform: scaleX(1);
}

/* Dark mode card enhancements */

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-gold);
}

.card:hover h3 {
  color: var(--primary-navy);
}

.card:hover .date {
  color: var(--secondary-gold);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-navy);
}

.card h3 a {
  color: inherit;
  text-decoration: none;
}

.card h3 a:hover {
  color: var(--primary-navy-light);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.card .date {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Academic Skills */
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  list-style: none;
  margin-top: var(--spacing-xl);
}

.skills-list li {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.skills-list li::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left var(--transition-normal);
}

.skills-list li:hover::before {
  left: 100%;
}

.skills-list li:hover {
  background: var(--primary-navy);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Dark mode skills enhancements */


/* Contact Information */
.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
  margin-top: var(--spacing-xl);
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.1rem;
}

.contact-list i {
  color: var(--primary-navy);
  width: 20px;
}

/* Footer */
.site-footer {
  background: var(--primary-navy);
  color: white;
  text-align: center;
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-2xl);
}

.site-footer p {
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  gap: var(--spacing-xs);
  align-items: center;
  font-size: 0.7rem;
}

.lang-switcher a {
  font-size: 0.7rem;
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-xs);
  border-radius: 4px;
  transition: all var(--transition-fast);
  color: var(--primary-navy);
  text-decoration: none;
  border-bottom: none;
}

.lang-switcher a:hover {
  background: var(--bg-tertiary);
  color: var(--primary-navy);
  border-bottom: none;
}

/* Dark Mode Toggle */

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 20px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-medium);
  transition: var(--transition-normal);
  border-radius: 24px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: var(--transition-normal);
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Dark mode switch enhancements */


input:checked + .slider {
  background-color: var(--secondary-gold);
}

input:checked + .slider:before {
  transform: translateX(24px);
}

/* Enhanced Responsive Design */
@media (max-width: 768px) {
  .navbar {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    position: relative;
    padding: var(--spacing-xs) 0;
  }
  
  .navbar-right {
    gap: var(--spacing-sm);
  }
  
  .nav-toggle {
    display: block !important;
  }
  
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: var(--spacing-sm);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  
  .nav-links.show {
    display: flex;
    animation: slideDown 0.3s ease-out;
  }
  
  .nav-links li {
    margin: var(--spacing-sm) 0;
  }
  
  .nav-links a {
    padding: var(--spacing-md);
    border-radius: 8px;
    transition: all var(--transition-fast);
    display: block;
  }
  
  .nav-links a:hover {
    background: var(--bg-secondary);
    transform: translateX(8px);
  }
  
/* Botón de hamburguesa - Oculto por defecto */
.nav-toggle {
  display: none !important;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: 6px;
  transition: all var(--transition-fast);
}

/* Solo mostrar en móviles */
@media (max-width: 768px) {
  .nav-toggle {
    display: block !important;
  }
}

.nav-toggle:hover {
  background: var(--bg-secondary);
  transform: scale(1.1);
}
  
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl) 0;
  }
  
  .hero-text h1 {
    font-size: 2.2rem;
    line-height: 1.2;
  }
  
  .hero-text .subtitle {
    font-size: 1.1rem;
  }
  
  .hero-image img {
    width: 180px;
    height: 180px;
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .card {
    padding: var(--spacing-lg);
  }
  
  .skills-list {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .skills-list li {
    padding: var(--spacing-md);
    font-size: 1rem;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  /* Mobile-specific dark mode enhancements */
    background: var(--card-bg);
    border-top: 1px solid var(--card-border);
  }
  
    background: var(--card-bg);
  }
  
  /* Mobile form improvements */
  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 16px; /* Prevents zoom on iOS */
  }
  
  /* Mobile card improvements */
  .education-card,
  .experience-card,
  .publication-item {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
  }
  
  /* Mobile research areas */
  .research-interests {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .research-area {
    padding: var(--spacing-lg);
  }
}

/* Tablet Responsiveness */
@media (min-width: 769px) and (max-width: 1024px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
  
  .hero {
    gap: var(--spacing-lg);
    grid-template-columns: 1.8fr 1fr;
  }
  
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .skills-list {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .research-interests {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Large Screen Enhancements */
@media (min-width: 1025px) {
  .hero {
    gap: var(--spacing-xl);
    grid-template-columns: 2.5fr 1fr;
  }
  
  .card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
  }
  
  .skills-list li:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
  }
  
  .education-card:hover,
  .experience-card:hover,
  .publication-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
  }
}

/* Animation for mobile menu */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Additional Mobile Enhancements */
@media (max-width: 480px) {
  .navbar {
    gap: var(--spacing-xs);
  }
  
  .logo {
    font-size: 1.1rem;
  }
  
  .nav-links a {
    font-size: 0.75rem;
    padding: var(--spacing-xs);
  }
  
  .btn-cv {
    font-size: 0.75rem;
    padding: var(--spacing-xs);
  }
  
  .lang-switcher {
    font-size: 0.7rem;
  }
  
  .hero-text h1 {
    font-size: 1.8rem;
  }
  
  .hero-text .subtitle {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .card {
    padding: var(--spacing-lg);
  }
  
  .skills-list li {
    padding: var(--spacing-sm);
    font-size: 0.85rem;
  }
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for better accessibility */
.nav-links a:focus,
.btn-cv:focus,
.card:focus,
.skills-list li:focus {
  outline: 2px solid var(--primary-navy);
  outline-offset: 2px;
}


/* High contrast mode support */
@media (prefers-contrast: high) {
  .card {
    border-width: 2px;
  }
  
  .skills-list li {
    border-width: 2px;
  }
  
  .btn-cv {
    border: 2px solid var(--primary-navy);
  }
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--primary-navy);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  z-index: 1000;
}

.scroll-to-top:hover {
  background: var(--primary-navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.scroll-to-top.show {
  display: flex;
}



/* Photos Gallery Styles */
.photos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.photo-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
}

.photo-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-gold);
}

.photo-item a {
  display: block;
  position: relative;
  overflow: hidden;
}

.photo-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.photo-item:hover img {
  transform: scale(1.05);
}

.photo-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(26, 54, 93, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.photo-item:hover .photo-overlay {
  opacity: 1;
}

.photo-overlay i {
  color: white;
  font-size: 2rem;
}

.photo-caption {
  padding: var(--spacing-md);
  text-align: center;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-primary);
}

/* Dark mode photo enhancements */


/* Interests Page Styles */
.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.interest-category {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.interest-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-navy), var(--secondary-gold));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.interest-category:hover::before {
  transform: scaleX(1);
}

.interest-category:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-gold);
}

.interest-category h2 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.interest-category h2 i {
  color: var(--secondary-gold);
  font-size: 1.2em;
}

.interests-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.interest-item {
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: 8px;
  border-left: 4px solid var(--primary-navy);
  transition: all var(--transition-fast);
}

.interest-item:hover {
  background: var(--bg-tertiary);
  transform: translateX(8px);
}

.interest-item h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

.interest-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Dark mode interests enhancements */



/* Projects Page Styles */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
  justify-content: center;
  width: 100%;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

.project-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  max-width: 450px;
  margin: 0 auto;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-navy), var(--secondary-gold));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-gold);
}

.project-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-navy), var(--secondary-gold));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.project-icon i {
  color: white;
  font-size: 1.5rem;
}

.project-card h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  font-size: 1.3rem;
}

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

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.project-tech {
  background: var(--secondary-gold);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.project-date {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: var(--spacing-sm);
}

.project-link {
  background: var(--primary-navy);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.project-link:hover {
  background: var(--primary-navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Dark mode projects enhancements */


/* Mobile responsiveness for new components */
@media (max-width: 768px) {
  .photos-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .photo-item img {
    height: 200px;
  }
  
  .interests-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .interest-category {
    padding: var(--spacing-lg);
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .project-card {
    padding: var(--spacing-lg);
  }
  
  .project-meta {
    flex-direction: column;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .photos-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .interests-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Academic Publications Style */
.publication-item {
  background: var(--bg-primary);
  border-left: 4px solid var(--secondary-gold);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border-radius: 0 8px 8px 0;
  box-shadow: var(--shadow-sm);
}

.publication-title {
  font-weight: 600;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
}

.publication-authors {
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: var(--spacing-sm);
}

.publication-venue {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Research Interests */
.research-interests {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.research-area {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
}

.research-area h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
}

.research-area p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Research Page Specific Styles */
.research-statement {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  margin-bottom: var(--spacing-2xl);
  border-left: 4px solid var(--secondary-gold);
}

.research-statement h2 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-lg);
  border-bottom: none;
  display: block;
}

.research-section {
  margin-bottom: var(--spacing-2xl);
}

.research-section h2 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xl);
  border-bottom: none;
  display: block;
}

.research-project {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.research-project:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

/* Clickable research project (Banxico Challenge) */
.research-project[onclick] {
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.research-project[onclick]:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border-color: #ffd700;
}

.research-project h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.project-meta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.project-status {
  background: var(--secondary-gold);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.project-date {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
}

.project-description h4 {
  color: var(--primary-navy);
  margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
  font-size: 1.1rem;
}

.project-description ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.project-description li {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.research-areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.research-area-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.research-area-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.research-area-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.research-area-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

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

.topic-tag {
  background: var(--primary-navy);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.skill-category {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
}

.skill-category h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.skill-category .skills-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.skill-category .skills-list li {
  background: var(--bg-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 6px;
  border: 1px solid var(--border-light);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-category .skills-list li:hover {
  background: var(--primary-navy);
  color: white;
  transform: translateX(4px);
}

.future-research {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.research-item {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.research-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.research-item h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
  font-size: 1.2rem;
}

.research-item p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Contact Info Styles */
.contact-info {
  margin-top: var(--spacing-lg);
}

.contact-info p {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

.contact-info i {
  color: var(--primary-navy);
  width: 16px;
}

/* Education Page Styles */
.education-section {
  margin-bottom: var(--spacing-2xl);
}

.education-section h2 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xl);
  border-bottom: none;
  display: block;
}

.education-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.education-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.education-header {
  margin-bottom: var(--spacing-lg);
}

.education-header h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.education-meta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.degree, .period, .gpa, .scholarship {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}

.gpa {
  background: var(--secondary-gold);
  color: white;
}

.scholarship {
  background: var(--primary-navy);
  color: white;
}

.education-details h4 {
  color: var(--primary-navy);
  margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
  font-size: 1.1rem;
}

.coursework-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.course-category h5 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  font-size: 1rem;
}

.course-category ul {
  list-style: none;
  padding: 0;
}

.course-category li {
  padding: var(--spacing-xs) 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-light);
}

.course-category li:last-child {
  border-bottom: none;
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.achievement-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.achievement-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.achievement-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.achievement-date {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.language-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.language-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  text-align: center;
}

.language-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.language-level {
  background: var(--primary-navy);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-block;
  margin-bottom: var(--spacing-sm);
}

.references-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.reference-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
}

.reference-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
}

.reference-title {
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.reference-institution {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-xs);
}

.reference-email {
  color: var(--primary-navy);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.reference-relationship {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-style: italic;
}

/* Experience Page Styles */
.experience-section {
  margin-bottom: var(--spacing-2xl);
}

.experience-section h2 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xl);
  border-bottom: none;
  display: block;
}

.experience-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.experience-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.experience-header {
  margin-bottom: var(--spacing-lg);
}

.experience-header h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.experience-meta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.organization, .period, .location {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}

.organization {
  background: var(--primary-navy);
  color: white;
}

.experience-details h4 {
  color: var(--primary-navy);
  margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
  font-size: 1.1rem;
}

.experience-details ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.experience-details li {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.tools-used {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.tool-tag {
  background: var(--secondary-gold);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.skill-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm);
  background: var(--bg-primary);
  border-radius: 6px;
  border: 1px solid var(--border-light);
}

.skill-name {
  color: var(--text-primary);
  font-weight: 500;
}

.skill-level {
  background: var(--primary-navy);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
}

.memberships-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.membership-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.membership-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.membership-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.membership-period {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

/* Publications Page Styles */
.publications-section {
  margin-bottom: var(--spacing-2xl);
}

.publications-section h2 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xl);
  border-bottom: none;
  display: block;
}

.publication-header {
  margin-bottom: var(--spacing-lg);
}

.publication-header h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.publication-meta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.publication-type, .publication-date, .publication-status {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}

.publication-type {
  background: var(--primary-navy);
  color: white;
}

.publication-status {
  background: var(--secondary-gold);
  color: white;
}

.publication-abstract h4 {
  color: var(--primary-navy);
  margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
  font-size: 1.1rem;
}

.publication-abstract ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.publication-abstract li {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.publication-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.publication-link {
  background: var(--primary-navy);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.publication-link:hover {
  background: var(--primary-navy-light);
  transform: translateY(-2px);
  color: white;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.data-item {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.data-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.data-item h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.data-item p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.data-links {
  display: flex;
  gap: var(--spacing-sm);
}

.data-link {
  background: var(--primary-navy);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.data-link:hover {
  background: var(--primary-navy-light);
  color: white;
}

/* Contact Page Styles */
.contact-section {
  margin-bottom: var(--spacing-2xl);
}

.contact-section h2 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xl);
  border-bottom: none;
  display: block;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.contact-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  text-align: center;
  transition: all var(--transition-normal);
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.contact-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.contact-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.contact-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-style: italic;
}

.affiliations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.affiliation-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.affiliation-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.affiliation-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.affiliation-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.collaboration-info p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  font-size: 1.1rem;
}

.collaboration-areas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.collaboration-area {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
}

.collaboration-area h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.collaboration-area ul {
  list-style: none;
  padding: 0;
}

.collaboration-area li {
  padding: var(--spacing-xs) 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}

.collaboration-area li:last-child {
  border-bottom: none;
}

.networks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.network-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
  text-align: center;
  transition: all var(--transition-normal);
}

.network-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-gold);
}

.network-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.network-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.network-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-style: italic;
}

.contact-form-container {
  max-width: 700px;
  margin: 0 auto;
  background: var(--bg-secondary);
  padding: var(--spacing-2xl);
  border-radius: 16px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.contact-form-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-navy), var(--secondary-gold));
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  position: relative;
}

.form-group label {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-group label::after {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--secondary-gold);
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.form-group label.required::after {
  opacity: 1;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid var(--border-light);
  border-radius: 12px;
  font-size: 1rem;
  transition: all var(--transition-normal);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  position: relative;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-navy);
  box-shadow: 0 0 0 4px rgba(26, 54, 93, 0.1);
  transform: translateY(-2px);
  background: var(--bg-primary);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 12px center;
  background-repeat: no-repeat;
  background-size: 16px;
  padding-right: 40px;
  appearance: none;
}

.form-group.success input,
.form-group.success select,
.form-group.success textarea {
  border-color: #10b981;
  background-color: rgba(16, 185, 129, 0.05);
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: #ef4444;
  background-color: rgba(239, 68, 68, 0.05);
}

.form-group .error-message {
  color: #ef4444;
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
}

.form-group.error .error-message {
  opacity: 1;
  transform: translateY(0);
}

.form-group .success-message {
  color: #10b981;
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
}

.form-group.success .success-message {
  opacity: 1;
  transform: translateY(0);
}

/* Dark mode form enhancements */




.btn-submit {
  background: linear-gradient(135deg, var(--primary-navy), var(--primary-navy-light));
  color: white;
  padding: var(--spacing-lg) var(--spacing-2xl);
  border: none;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  font-family: var(--font-sans);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.btn-submit::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-normal);
}

.btn-submit:hover::before {
  left: 100%;
}

.btn-submit:hover {
  background: linear-gradient(135deg, var(--primary-navy-light), var(--primary-navy));
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-submit:active {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-submit.loading {
  pointer-events: none;
}

.btn-submit.loading i {
  animation: spin 1s linear infinite;
}

/* Dark mode button enhancements */


/* Button Styles for Files Page */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-navy), var(--primary-navy-light));
  color: white;
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-family: var(--font-sans);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-normal);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-navy-light), var(--primary-navy));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-primary:focus {
  outline: 2px solid var(--secondary-gold);
  outline-offset: 2px;
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: var(--spacing-md) var(--spacing-xl);
  border: 2px solid var(--border-medium);
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-family: var(--font-sans);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--primary-navy);
  color: var(--primary-navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:focus {
  outline: 2px solid var(--secondary-gold);
  outline-offset: 2px;
}

/* Dark mode button enhancements */




/* Form input styles for files page */
.form-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-light);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  box-sizing: border-box;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-navy);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.form-input:hover {
  border-color: var(--border-medium);
}




/* Auth form specific styles */
.auth-form {
  max-width: 400px;
  margin: 0 auto;
  padding: var(--spacing-xl);
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}


/* Responsive button adjustments */
@media (max-width: 768px) {
  .btn-primary,
  .btn-secondary {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
  }
  
  .auth-form {
    margin: 0 var(--spacing-md);
    padding: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .btn-primary,
  .btn-secondary {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
  }
  
  .auth-form {
    margin: 0 var(--spacing-sm);
    padding: var(--spacing-md);
  }
}

/* Form validation animations */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  animation: shake 0.3s ease-in-out;
}

/* Form Messages */
.form-message {
  padding: var(--spacing-lg);
  border-radius: 12px;
  margin-bottom: var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-weight: 500;
  animation: slideIn 0.3s ease-out;
}

.form-message.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid #10b981;
  color: #065f46;
}

.form-message.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid #ef4444;
  color: #991b1b;
}

.form-message i {
  font-size: 1.2rem;
}



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

/* Spam Protection Styles */
.honeypot-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  opacity: 0;
  pointer-events: none;
}

.captcha-group {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--spacing-sm);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.captcha-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

.captcha-container span {
  font-weight: 500;
  color: var(--text-primary);
  min-width: 120px;
}

.captcha-container input {
  max-width: 100px;
  text-align: center;
  font-weight: 600;
  font-size: 1.1em;
}



/* Rate limiting indicator */
.rate-limit-warning {
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeaa7;
  padding: var(--spacing-sm);
  border-radius: var(--spacing-sm);
  font-size: 0.9em;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}


/* Form timing indicator */
.form-timing {
  font-size: 0.8em;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--spacing-sm);
  opacity: 0.7;
}


.availability-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.availability-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  border: 1px solid var(--border-light);
}

.availability-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.availability-card ul {
  list-style: none;
  padding: 0;
}

.availability-card li {
  padding: var(--spacing-xs) 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}

.availability-card li:last-child {
  border-bottom: none;
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .nav-toggle,
  .lang-switcher,
  .btn-cv,
  .scroll-to-top {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
    color: black;
    background: white;
    margin: 0;
    padding: 1rem;
  }
  
  .hero {
    min-height: auto;
    padding: var(--spacing-lg) 0;
    grid-template-columns: 1fr;
    text-align: left;
  }
  
  .hero-image {
    display: none;
  }
  
  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
    margin-bottom: 1rem;
  }
  
  .research-project {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
    margin-bottom: 1rem;
  }
  
  .education-card,
  .experience-card,
  .publication-item {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  .section {
    margin-bottom: 2rem;
  }
  
  .section-title {
    border-bottom: 2px solid #000;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
  }
  
  a {
    color: black;
    text-decoration: underline;
  }
  
  .container {
    max-width: none;
    padding: 0;
  }
}

/* Series Analysis Styles */
.series-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  margin-top: 2rem;
}

.controls-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.control-section {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.control-section h3 {
  margin: 0 0 1rem 0;
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 600;
}

.radio-label {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.radio-label input[type="radio"] {
  margin-right: 0.5rem;
}

.input-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text);
}

.number-input,
.select-input,
.file-input {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  margin-bottom: 1rem;
}

.number-input:focus,
.select-input:focus,
.file-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.btn-primary,
.btn-secondary {
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  margin-bottom: 0.5rem;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--secondary);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--hover);
}

.btn-primary:disabled,
.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chart-panel {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  height: 500px;
}

.results-section {
  margin-top: 2rem;
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.results-section h3 {
  margin: 0 0 1rem 0;
  color: var(--text);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.stat-item {
  background: var(--bg);
  padding: 1rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.stat-item h4 {
  margin: 0 0 0.5rem 0;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
}

.stat-item p {
  margin: 0.25rem 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}

/* Responsive Design for Series */
@media (max-width: 768px) {
  .series-container {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .chart-panel {
    height: 300px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* FORZAR OCULTACIÓN DEL BOTÓN HAMBURGUESA EN ESCRITORIO - MÁXIMA PRIORIDAD */
@media screen and (min-width: 769px) {
  .nav-toggle,
  button.nav-toggle,
  .navbar .nav-toggle,
  .site-header .nav-toggle,
  body .site-header .navbar .nav-toggle {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }
}