/* Modern Resume CSS - Manuel Pozo */

/* CSS Custom Properties */
:root {
  /* Colors */
  --primary-color: #42A8C0;
  --primary-dark: #2E7D8A;
  --secondary-color: #6C63FF;
  --accent-color: #FF6B6B;
  --text-primary: #2D3748;
  --text-secondary: #4A5568;
  --text-muted: #718096;
  --background: #FFFFFF;
  --background-secondary: #F7FAFC;
  --border-color: #E2E8F0;
  --shadow: 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);
  
  /* Dark mode colors */
  --dark-bg: #1A202C;
  --dark-bg-secondary: #2D3748;
  --dark-text: #E2E8F0;
  --dark-text-secondary: #A0AEC0;
  --dark-border: #4A5568;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  
  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode */
[data-theme="dark"] {
  --background: var(--dark-bg);
  --background-secondary: var(--dark-bg-secondary);
  --text-primary: var(--dark-text);
  --text-secondary: var(--dark-text-secondary);
  --text-muted: var(--dark-text-secondary);
  --border-color: var(--dark-border);
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: var(--radius-md);
  z-index: 1000;
  transition: var(--transition);
}

.skip-link:focus {
  top: 6px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  transition: var(--transition);
}

[data-theme="dark"] .navbar {
  background: rgba(26, 32, 44, 0.95);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.navbar-brand a {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.navbar-brand a:hover {
  color: var(--primary-dark);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.hamburger {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  position: relative;
  transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 3px;
  background: var(--text-primary);
  transition: var(--transition);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--space-6);
}

.navbar-menu a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.navbar-menu a:hover {
  color: var(--primary-color);
}

.navbar-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

.navbar-menu a:hover::after {
  width: 100%;
}

/* Main layout */
.main-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-8);
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-16) var(--space-4) var(--space-8);
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  background: var(--background-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  height: fit-content;
  position: sticky;
  top: 80px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

[data-theme="dark"] .sidebar {
  background: var(--dark-bg-secondary);
}

/* Profile section */
.profile-section {
  text-align: center;
  margin-bottom: var(--space-5);
}

.profile-image-container {
  margin-bottom: var(--space-4);
}

.profile-image {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--primary-color);
  transition: var(--transition);
}

.profile-image:hover {
  transform: scale(1.05);
}

.profile-name {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.profile-title {
  font-size: var(--font-size-lg);
  color: var(--primary-color);
  font-weight: 500;
}

/* Section titles */
.section-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.section-title .icon {
  font-size: var(--font-size-xl);
}

/* Contact section */
.contact-section {
  margin-bottom: var(--space-5);
}

.contact-list {
  list-style: none;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  padding: var(--space-1);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.contact-list li:hover {
  background: rgba(66, 168, 192, 0.1);
}

.contact-list .icon {
  font-size: var(--font-size-lg);
  width: 20px;
  height: 20px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  transition: var(--transition);
}

.contact-list .icon i {
  width: 100%;
  height: 100%;
}

.contact-list li:hover .icon {
  color: var(--primary-dark);
  transform: scale(1.1);
}

.contact-list a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.contact-list a:hover {
  color: var(--primary-color);
}

/* Dark mode adjustments for contact icons */
[data-theme="dark"] .contact-list .icon {
  color: var(--primary-color);
}

[data-theme="dark"] .contact-list li:hover .icon {
  color: var(--primary-dark);
}

/* Languages and interests */
.languages-section,
.interests-section {
  margin-bottom: var(--space-5);
}

.languages-list,
.interests-list {
  list-style: none;
}

.languages-list li,
.interests-list li {
  padding: var(--space-1) 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.languages-list li:last-child,
.interests-list li:last-child {
  border-bottom: none;
}

.lang-desc {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Content area */
.content {
  padding-left: var(--space-4);
}

.content-section {
  margin-bottom: var(--space-12);
  background: var(--background);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

[data-theme="dark"] .content-section {
  background: var(--dark-bg-secondary);
}

/* Timeline styles */
.experience-timeline,
.education-timeline {
  position: relative;
}

.experience-timeline::before,
.education-timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-color);
  opacity: 0.3;
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-8);
  padding-left: var(--space-12);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 8px;
  width: 16px;
  height: 16px;
  background: var(--primary-color);
  border-radius: 50%;
  border: 3px solid var(--background);
  z-index: 1;
}

[data-theme="dark"] .timeline-item::before {
  border-color: var(--dark-bg);
}

.timeline-item .meta {
  margin-bottom: var(--space-4);
}

.company-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
}

.company-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.company-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.title-separator {
  color: var(--text-secondary);
  font-weight: 400;
  margin: 0 var(--space-1);
}

.job-title {
  color: var(--text-primary);
  font-weight: 600;
}

.degree {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.time {
  color: var(--primary-color);
  font-weight: 500;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-2);
}

.university {
  margin-bottom: var(--space-2);
}

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

.university a:hover {
  color: var(--primary-color);
}

.details p {
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  line-height: 1.7;
}

/* Projects grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.project-item {
  background: var(--background-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

[data-theme="dark"] .project-item {
  background: var(--dark-bg);
}

.project-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.project-title a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--font-size-lg);
  font-weight: 600;
  transition: var(--transition);
}

.project-title a:hover {
  color: var(--primary-color);
}

.project-description {
  color: var(--text-secondary);
  margin-top: var(--space-2);
  line-height: 1.6;
}

/* Publications */
.publications-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.publication-item {
  padding: var(--space-6);
  background: var(--background-secondary);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary-color);
  transition: var(--transition);
}

[data-theme="dark"] .publication-item {
  background: var(--dark-bg);
}

.publication-item:hover {
  transform: translateX(4px);
}

.publication-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  line-height: 1.4;
}

.publication-authors {
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: var(--space-1);
}

.publication-venue {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-style: italic;
}

/* Skills grid */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

/* Skills grouped layout */
.skills-grouped {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.skill-group {
  background: var(--background-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

[data-theme="dark"] .skill-group {
  background: var(--dark-bg);
}

.skill-group:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.skill-group-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--primary-color);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.skill-group-title .icon {
  font-size: var(--font-size-xl);
}

.skill-group-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.skill-item {
  background: var(--background);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

[data-theme="dark"] .skill-item {
  background: var(--dark-bg-secondary);
}

.skill-item:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  border-color: var(--primary-color);
}

.skill-name {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.skill-bar {
  height: 8px;
  background: var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.skill-level {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--radius-sm);
  transition: width 1s ease-in-out;
  animation: fillBar 2s ease-in-out;
}

@keyframes fillBar {
  from { width: 0; }
  to { width: var(--skill-level, 0%); }
}

/* Summary content */
.summary-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
  line-height: 1.6;
  font-size: var(--font-size-base);
}

/* Footer */
.footer {
  background: var(--background-secondary);
  padding: var(--space-8) 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
  margin-top: var(--space-16);
}

[data-theme="dark"] .footer {
  background: var(--dark-bg-secondary);
}

.footer-text {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

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

.footer-text a:hover {
  color: var(--primary-dark);
}

.heart {
  color: var(--accent-color);
  animation: heartbeat 2s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Theme toggle */
.theme-toggle {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary-color);
  border: none;
  color: white;
  font-size: var(--font-size-xl);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  z-index: 1000;
}

.theme-toggle:hover {
  transform: scale(1.1);
  background: var(--primary-dark);
}

/* Loading indicator */
.loading-indicator {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2000;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-indicator.hidden {
  display: none;
}

/* Responsive design */
@media (max-width: 768px) {
  .main-layout {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    padding: var(--space-8) var(--space-4);
  }
  
  .sidebar {
    position: static;
    order: 2;
  }
  
  .content {
    padding-left: 0;
    order: 1;
  }
  
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--background);
    border-top: 1px solid var(--border-color);
    flex-direction: column;
    padding: var(--space-4);
    gap: var(--space-4);
  }
  
  [data-theme="dark"] .navbar-menu {
    background: var(--dark-bg);
  }
  
  .navbar-menu.active {
    display: flex;
  }
  
  .navbar-toggle {
    display: block;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid,
  .skills-grouped {
    grid-template-columns: 1fr;
  }
  
  .skills-grouped {
    gap: var(--space-6);
  }
  
  .timeline-item {
    padding-left: var(--space-8);
  }
  
  .company-title {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
  
  .title-separator {
    display: none;
  }
  
  .experience-timeline::before,
  .education-timeline::before {
    left: 12px;
  }
  
  .timeline-item::before {
    left: 4px;
  }
}

@media (max-width: 480px) {
  .content-section {
    padding: var(--space-4);
  }
  
  .profile-image {
    width: 100px;
    height: 100px;
  }
  
  .profile-name {
    font-size: var(--font-size-xl);
  }
  
  .profile-title {
    font-size: var(--font-size-base);
  }
  
  .company-title {
    font-size: var(--font-size-base);
  }
  
  .company-link {
    font-size: var(--font-size-base);
  }
  
  .job-title {
    font-size: var(--font-size-sm);
  }
}

/* Print styles */
@media print {
  .navbar,
  .theme-toggle,
  .loading-indicator {
    display: none;
  }
  
  .main-layout {
    grid-template-columns: 300px 1fr;
    gap: var(--space-6);
  }
  
  .sidebar {
    position: static;
  }
  
  .content-section {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--border-color);
  }
}