/* Accessibility Improvements */

/* Skip Navigation Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  padding: 1rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  border-radius: 0 0 var(--radius) 0;
  z-index: 9999;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid hsl(var(--primary));
  outline-offset: 2px;
}

/* Enhanced Focus Indicators */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus,
.dropdown-toggle:focus,
.social-link:focus,
.company-link:focus,
.side-nav-toggle:focus {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 2px;
  box-shadow: 0 0 0 4px hsl(var(--primary) / 0.2);
}

/* Focus visible for keyboard navigation only */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
  outline: none;
  box-shadow: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 2px;
  box-shadow: 0 0 0 4px hsl(var(--primary) / 0.2);
}

/* Improved contrast for muted text */
.content-description,
p {
  color: hsl(var(--muted-foreground));
  /* Ensure minimum contrast ratio of 4.5:1 for WCAG AA */
}

/* Dark mode contrast improvements */
.dark .content-description,
.dark p {
  color: hsl(215 20.2% 70%);
}

/* Navigation focus improvements */
.nav a:focus,
.header .nav a:focus {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 2px;
}

/* Dropdown menu keyboard navigation */
.dropdown-toggle:focus + .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Button focus states */
.button:focus,
.error-button:focus {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 2px;
}

/* Screen reader only text */
.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;
}

/* Focus trap for modal/sidebar */
.header:focus-within {
  /* Keep sidebar visible when navigating with keyboard */
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .tech-logo {
    animation: none !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  a,
  button,
  .button {
    outline: 2px solid currentColor;
  }

  .social-link {
    border: 2px solid currentColor;
  }
}

/* Ensure interactive elements are keyboard accessible */
[role="button"],
[role="link"] {
  cursor: pointer;
}

[role="button"]:focus,
[role="link"]:focus {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 2px;
}