/* Accessibility and Performance Optimizations for Dark Theme */

/* Preload critical assets */
@font-face {
  font-family: 'Poppins';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/poppins/v20/pxiEyp8kv8JHgFVrJJfecg.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/montserrat/v25/JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aXo.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Accessibility improvements */
:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .typing, .floating, .pulse, .glow {
    animation: none !important;
  }
  
  .cursor-dot, .cursor-outline {
    display: none !important;
  }
  
  .progress-bar::after {
    animation: none !important;
  }
  
  .social-icons a:hover,
  .detail-item:hover i,
  .timeline-item:hover .timeline-icon,
  .contact-item:hover i,
  .education-item:hover .education-icon, 
  .certification-item:hover .certification-icon {
    transform: none !important;
  }
}

/* High contrast mode support */
@media (forced-colors: active) {
  :root {
    --primary-color: CanvasText;
    --secondary-color: CanvasText;
    --text-primary: CanvasText;
    --text-secondary: CanvasText;
    --border-color: CanvasText;
  }
  
  .btn-primary,
  .btn-outline-primary:hover,
  .progress-bar,
  .timeline-icon,
  .education-icon,
  .certification-icon,
  .contact-item i,
  .back-to-top,
  .badge {
    forced-color-adjust: none;
    background: Canvas !important;
    color: CanvasText !important;
    border: 1px solid CanvasText !important;
  }
  
  .social-icons a,
  .detail-item i {
    forced-color-adjust: none;
    background: Canvas !important;
    color: CanvasText !important;
    border: 1px solid CanvasText !important;
  }
  
  .card, .timeline-content, .skill-item, .project-card, .contact-info, .contact-form-container {
    background-color: Canvas !important;
    border: 1px solid CanvasText !important;
  }
  
  .text-gradient, 
  .header-content h1,
  .skill-icon,
  .skill-category h3 i,
  .education-section h3 i, 
  .certifications-section h3 i {
    background: none !important;
    -webkit-background-clip: unset !important;
    background-clip: unset !important;
    -webkit-text-fill-color: CanvasText !important;
    text-fill-color: CanvasText !important;
    color: CanvasText !important;
  }
}

/* Performance optimizations */
img {
  max-width: 100%;
  height: auto;
  aspect-ratio: attr(width) / attr(height);
}

/* Lazy loading for images below the fold */
.lazy-load {
  opacity: 0;
  transition: opacity 0.3s;
}

.lazy-load.loaded {
  opacity: 1;
}

/* Print styles */
@media print {
  body {
    background: #fff !important;
    color: #000 !important;
    font-size: 12pt;
  }
  
  nav, footer, .back-to-top, .contact-form-container, .social-icons, .particles-js, .cursor-dot, .cursor-outline {
    display: none !important;
  }
  
  .container {
    width: 100% !important;
    max-width: 100% !important;
  }
  
  section {
    padding: 20px 0 !important;
    page-break-inside: avoid;
  }
  
  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
    color: #000 !important;
  }
  
  img {
    max-width: 500px !important;
    page-break-inside: avoid;
  }
  
  .timeline::after {
    display: none;
  }
  
  .timeline-item {
    width: 100% !important;
    left: 0 !important;
    padding: 0 !important;
    margin-bottom: 30px !important;
  }
  
  .timeline-icon {
    display: none;
  }
  
  .timeline-content, .card, .skill-item, .project-card, .contact-info {
    box-shadow: none !important;
    border: 1px solid #ddd !important;
    background: #fff !important;
    color: #000 !important;
  }
  
  .text-gradient, 
  .header-content h1,
  .skill-icon,
  .skill-category h3 i,
  .education-section h3 i, 
  .certifications-section h3 i {
    background: none !important;
    -webkit-background-clip: unset !important;
    background-clip: unset !important;
    -webkit-text-fill-color: #000 !important;
    text-fill-color: #000 !important;
    color: #000 !important;
  }
  
  a {
    text-decoration: none !important;
    color: #000 !important;
  }
  
  a::after {
    content: " (" attr(href) ")";
    font-size: 10pt;
  }
  
  a[href^="#"]::after {
    content: "";
  }
}

/* Touch device optimizations */
@media (hover: none) {
  .skill-item:hover,
  .project-card:hover,
  .social-icons a:hover,
  .timeline-content:hover,
  .contact-info:hover,
  .contact-form-container:hover,
  .card:hover {
    transform: none;
  }
  
  .footer-links li:hover,
  .footer-contact li:hover,
  .detail-item:hover,
  .contact-item:hover,
  .education-item:hover, 
  .certification-item:hover {
    transform: none;
  }
  
  .btn, .nav-link {
    padding: 12px 20px;
  }
  
  .social-icons a:hover,
  .detail-item:hover i,
  .timeline-item:hover .timeline-icon,
  .contact-item:hover i,
  .education-item:hover .education-icon, 
  .certification-item:hover .certification-icon {
    transform: none;
  }
}

/* Improved focus visibility for keyboard navigation */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus,
.form-control:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
  box-shadow: none;
}

/* Skip to content link for keyboard users */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  z-index: 100;
  transition: top 0.3s;
}

.skip-to-content:focus {
  top: 0;
}

/* Improved contrast for text */
.text-gradient {
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

/* Optimized animations */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    animation: fadeIn 0.5s ease-in-out;
  }
  
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
}

/* Responsive image handling */
.img-fluid {
  max-width: 100%;
  height: auto;
}

/* Improved form accessibility */
.form-label {
  display: block;
  margin-bottom: 0.5rem;
}

/* ARIA support */
[aria-hidden="true"] {
  display: none;
}

/* Improved button states */
.btn:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}

/* Improved color contrast */
.text-muted {
  color: #a0a0a0 !important;
}

/* Optimized loading for critical CSS */
.critical-css {
  display: block;
}

/* Improved tap targets for mobile */
@media (max-width: 767px) {
  .nav-link,
  .btn,
  .social-icons a {
    padding: 12px 16px;
    min-height: 44px;
    min-width: 44px;
  }
}

/* Dark mode color contrast improvements */
.text-secondary {
  color: #d1d1d1 !important;
}

.text-muted {
  color: #a0a0a0 !important;
}

.form-control::placeholder {
  color: #8c8c8c !important;
}

/* Improved focus states for interactive elements */
.card:focus-within,
.skill-item:focus-within,
.project-card:focus-within,
.timeline-content:focus-within,
.contact-info:focus-within,
.contact-form-container:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.3);
}

/* Reduced animation intensity for vestibular disorders */
@media (prefers-reduced-motion: reduce) {
  .profile-image-container:hover .profile-image,
  .about-image:hover img {
    transform: none !important;
  }
}

/* Improved keyboard navigation indicators */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.form-control:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.3);
}

/* Ensure sufficient color contrast */
.badge {
  color: #ffffff;
  font-weight: 600;
}

/* Improved form field contrast */
.form-control {
  color: #ffffff;
}

/* Ensure text remains visible during webfont load */
.font-loading {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

/* Optimize for screen readers */
.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: normal !important;
}

/* Ensure proper contrast for links */
a:hover {
  text-decoration: underline;
}

/* Ensure proper focus for interactive elements */
.social-icons a:focus,
.btn:focus,
.nav-link:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}

/* Ensure proper contrast for progress bars */
.progress {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Ensure proper contrast for badges */
.badge {
  padding: 5px 10px;
}

/* Ensure proper contrast for form controls */
.form-control:focus {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Ensure proper contrast for buttons */
.btn-primary:focus,
.btn-outline-primary:focus,
.btn-outline-light:focus {
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.5);
}

/* Ensure proper contrast for icons */
.skill-icon,
.timeline-icon i,
.education-icon i,
.certification-icon i,
.contact-item i {
  font-size: 1.5rem;
}