/* CSS Custom Properties for theme management */
:root {
  /* Light theme colors */
  --primary-color: #3b82f6;
  --secondary-color: #1e293b;
  --accent-color: #6366f1;
  --bg-color: #ffffff;
  --card-bg: #f8fafc;
  --text-color: #1e293b;
  --text-secondary: #64748b;
  --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);
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark theme colors */
[data-theme="dark"] {
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --text-color: #f1f5f9;
  --text-secondary: #94a3b8;
  --border-color: #334155;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  transition: var(--transition);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--bg-color);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

.nav-logo a:hover {
  opacity: 0.8;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--accent-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--accent-color);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.theme-toggle {
  background: none;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  font-size: 1.2rem;
}

.theme-toggle:hover {
  border-color: var(--accent-color);
  transform: scale(1.1);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger .bar {
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  margin: 3px 0;
  transition: var(--transition-fast);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  background: linear-gradient(135deg, var(--bg-color) 0%, var(--card-bg) 100%);
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-title .highlight {
  color: var(--accent-color);
  background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.75rem 2rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  color: white;
}

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

.btn-secondary {
  background: transparent;
  color: var(--text-color);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--card-bg);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-avatar {
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

/* Section Styles */
section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* About Section */
.about {
  background: var(--card-bg);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-text p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.motto {
  margin-top: 2rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  border-radius: 1rem;
  text-align: center;
  color: white;
}

.motto h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.motto p {
  font-size: 1.1rem;
  margin: 0;
  font-style: italic;
}

.skills {
  margin-top: 3rem;
}

.skills h3 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--text-color);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg-color);
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition-fast);
}

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

.skill-icon {
  font-size: 1.5rem;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  background: var(--card-bg);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

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

.project-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.project-content {
  padding: 1.5rem;
}

.project-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-color);
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tech-tag {
  padding: 0.25rem 0.75rem;
  background: var(--accent-color);
  color: white;
  border-radius: 1rem;
  font-size: 0.85rem;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
}

.project-link:hover {
  opacity: 0.8;
}

/* Contact Section */
.contact {
  background: var(--card-bg);
}

.contact-content {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 3rem;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg-color);
  border-radius: 0.75rem;
  box-shadow: var(--shadow);
  transition: var(--transition-fast);
}

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

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-color);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.contact-details h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-color);
}

.contact-details p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-cta {
  text-align: center;
  padding: 2rem;
  background: var(--bg-color);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.contact-cta p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* Footer */
.footer {
  background: var(--text-color);
  color: var(--bg-color);
  padding: 2rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

.social-links a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--bg-color);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow);
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-menu li {
    margin: 1rem 0;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 200px;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-info {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    text-align: center;
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .nav-container {
    padding: 1rem;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .project-card {
    margin: 0;
  }
}

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

/* Focus styles for better accessibility */
*:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

.btn:focus,
.nav-link:focus,
.project-link:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .navbar,
  .theme-toggle,
  .hamburger {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .hero {
    padding-top: 0;
  }
}
/* =============================================================================
   ADVANCED BLOG SECTION STYLES - Add this to your style.css
   ============================================================================= */

   .blog {
    background: var(--bg-color);
    padding: 5rem 0;
}

/* Advanced Blog Grid */
.advanced-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advanced-blog-card {
    background: var(--card-bg);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.advanced-blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.advanced-blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.advanced-blog-card:hover .blog-overlay {
    opacity: 1;
}

.preview-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.preview-btn:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.blog-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.reading-time {
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.blog-title {
    margin-bottom: 1rem;
}

.blog-title a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 600;
    transition: var(--transition-fast);
    line-height: 1.3;
}

.blog-title a:hover {
    color: var(--accent-color);
}

.blog-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex: 1;
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--accent-color);
    color: white;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.tag-more {
    background: var(--text-secondary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.blog-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.blog-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.blog-links {
    display: flex;
    gap: 0.75rem;
}

.blog-link {
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    font-size: 0.9rem;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    cursor: pointer;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preview-link {
    background: var(--card-bg);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.preview-link:hover {
    background: var(--accent-color);
    color: white;
}

.external-link {
    background: var(--accent-color);
    color: white;
}

.external-link:hover {
    background: var(--primary-color);
    transform: translateY(-1px);
}

/* Loading States */
.blog-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.blog-fallback {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    background: var(--card-bg);
    border-radius: 1rem;
    border: 2px dashed var(--border-color);
}

.blog-fallback h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.blog-fallback p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Modal Styles */
.blog-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: var(--bg-color);
    border-radius: 1rem;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--card-bg);
}

.modal-header h2 {
    margin: 0;
    color: var(--text-color);
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.3;
    flex: 1;
    margin-right: 1rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    flex-shrink: 0;
}

.modal-close:hover {
    background: var(--border-color);
    color: var(--text-color);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--card-bg);
    text-align: center;
}

/* Post Preview Styles */
.post-preview {
    max-width: 100%;
}

.post-cover {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.post-reading-time {
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.post-description {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.post-description p {
    color: var(--text-color);
    font-size: 1.1rem;
}

.preview-tag {
    background: var(--card-bg);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.post-stats {
    display: flex;
    gap: 2rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 0.5rem;
    justify-content: center;
}

.stat-item {
    text-align: center;
    color: var(--text-secondary);
}

.stat-item strong {
    display: block;
    font-size: 1.5rem;
    color: var(--accent-color);
    font-weight: 700;
}

/* Action Buttons */
.blog-actions-container {
    text-align: center;
    margin-top: 2rem;
}

.blog-cta {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 1rem;
    box-shadow: var(--shadow);
}

.blog-cta p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Responsive Design */
@media (max-width: 768px) {
    .advanced-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .blog-actions {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .blog-links {
        width: 100%;
        justify-content: space-between;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .modal-content {
        margin: 1rem;
        max-height: calc(100vh - 2rem);
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 1rem;
    }
    
    .post-stats {
        gap: 1rem;
    }
    
    .post-meta {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .blog-image {
        height: 150px;
    }
    
    .preview-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .modal-header h2 {
        font-size: 1.2rem;
    }
    
    .blog-modal {
        padding: 1rem;
    }
}