/* custom.css */
:root {
    /* Base Colors */
    --navy: #0A1D37;
    --khaki: #C3B091;
    --light-khaki: #E2D4BA;
    --off-white: #F8F8F8;
    --text-dark: #1A202C;
    --text-light: #374151; /* Enhanced for WCAG AA compliance (4.5:1 ratio) */
    
    /* Light Mode Colors (Default) */
    --bg-primary: var(--off-white);
    --bg-secondary: white;
    --text-primary: var(--text-dark);
    --text-secondary: var(--text-light);
    --accent-primary: var(--navy);
    --accent-secondary: var(--khaki);
    --border-color: #E2E8F0;
    --card-bg: white;
    --card-shadow: rgba(0, 0, 0, 0.1);
  }
  
  /* Dark Mode Colors */
  [data-theme="dark"] {
    --bg-primary: #0F172A; /* Darker for better contrast */
    --bg-secondary: #1E293B; /* Improved secondary background */
    --text-primary: #F8FAFC; /* High contrast white */
    --text-secondary: #CBD5E1; /* WCAG AA compliant secondary text */
    --accent-primary: #60A5FA; /* Better blue contrast (7:1 ratio) */
    --accent-secondary: #F59E0B; /* Improved amber for dark mode */
    --border-color: #475569; /* More visible borders */
    --card-bg: #334155; /* Better card contrast */
    --card-shadow: rgba(0, 0, 0, 0.5);
  }
  
  /* Transition effects for theme switching */
  body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
  }
  
  /* Dark mode toggle button styles */
  .dark-mode-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color 0.2s;
  }
  
  .dark-mode-toggle:hover {
    background-color: var(--border-color);
  }
  
  .btn-primary {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    padding: 0.5rem 1.5rem;
    border-radius: 0.25rem;
    transition: background-color 0.2s ease, color 0.2s ease;
  }
  
  .btn-primary:hover {
    background-color: var(--navy);
    color: white;
  }
  
  .btn-secondary {
    background-color: var(--accent-secondary);
    color: var(--accent-primary);
    padding: 0.5rem 1.5rem;
    border-radius: 0.25rem;
    transition: background-color 0.2s ease, color 0.2s ease;
  }
  
  .btn-secondary:hover {
    background-color: #d1c1a5;
  }
  
  .nav-link {
    color: var(--text-dark);
    position: relative;
    text-decoration: none;
  }
  
  .nav-link:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--khaki);
    transition: width 0.2s ease;
  }
  
  .nav-link:hover:after {
    width: 100%;
  }
  
  .nav-link.active:after {
    width: 100%;
    background-color: var(--navy);
  }
  
  .card {
    border: 1px solid #eee;
    padding: 1.5rem;
    border-radius: 0.25rem;
    background-color: white;
    transition: border-color 0.2s ease;
  }
  
  .card:hover {
    border-color: var(--khaki);
  }
  
  /* Form styles */
  .form-input {
    border: 1px solid #e2e8f0;
    padding: 0.5rem 0.75rem;
    border-radius: 0.25rem;
    width: 100%;
    transition: border-color 0.2s ease;
  }
  
  .form-input:focus {
    outline: none;
    border-color: var(--navy);
  }
  
  .form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
  }
  
  /* Enhanced dark mode support */
  .bg-primary {
    background-color: var(--bg-primary) !important;
  }
  
  .bg-secondary {
    background-color: var(--bg-secondary) !important;
  }
  
  .text-primary {
    color: var(--text-primary) !important;
  }
  
  .text-secondary {
    color: var(--text-secondary) !important;
  }
  
  .border-color {
    border-color: var(--border-color) !important;
  }
  
  /* Update card styles for dark mode */
  .card {
    background-color: var(--card-bg);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
  }
  
  [data-theme="dark"] .card {
    box-shadow: 0 4px 6px var(--card-shadow);
  }
  
  /* Footer Dark Mode */
  footer {
    background-color: var(--accent-primary);
    transition: background-color 0.3s ease;
  }
  
  [data-theme="dark"] footer {
    background-color: #1A2942;
  }

  /* Improved contrast for khaki text on dark backgrounds */
  [data-theme="dark"] .text-khaki {
    color: var(--accent-secondary);
  }
  
  /* Version display in footer */
  .version-display {
    display: inline-block;
    font-size: 0.85em;
    font-weight: 500;
    opacity: 0.9;
    transition: opacity 0.3s ease;
  }
  
  .version-display:hover {
    opacity: 1;
  }
  
  /* Navigation Dark Mode */
  nav {
    background-color: var(--bg-secondary);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
  }
  
  [data-theme="dark"] nav {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  }
  
  /* Custom dark mode specific styles */
  [data-theme="dark"] .skill-tag {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
  }
  
  [data-theme="dark"] .nav-link {
    color: var(--text-primary);
  }
  
  /* Enhanced styles for specific components in dark mode */
  [data-theme="dark"] .bg-white {
    background-color: var(--card-bg);
  }
  
  [data-theme="dark"] .border-gray-200 {
    border-color: var(--border-color);
  }
  
  [data-theme="dark"] .text-navy {
    color: var(--accent-primary);
  }
  
  [data-theme="dark"] .project-card {
    background-color: var(--card-bg);
    border-color: var(--border-color);
  }
  
  [data-theme="dark"] .tech-tag {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
  }
  
  /* Dark mode form inputs */
  [data-theme="dark"] .form-input {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
  }
  
  [data-theme="dark"] .form-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(136, 160, 206, 0.2);
  }
  
  /* Dark mode buttons */
  [data-theme="dark"] .btn-primary {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    border: 1px solid var(--accent-primary);
  }
  
  [data-theme="dark"] .btn-primary:hover {
    background-color: #3B82F6;
    border-color: #3B82F6;
  }
  
  [data-theme="dark"] .btn-secondary {
    background-color: transparent;
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
  }
  
  [data-theme="dark"] .btn-secondary:hover {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
  }
  
  /* Dark mode animated elements */
  [data-theme="dark"] .animate-spin {
    border-color: var(--accent-primary);
  }
  
  /* Dark mode section dividers */
  [data-theme="dark"] .section-divider {
    background-color: var(--border-color);
  }
  
  /* Skip navigation link for accessibility */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  
  .sr-only.focus\:not-sr-only:focus {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
  }
  
  /* Enhanced focus styles for better accessibility */
  :focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
  }
  
  /* High contrast focus for interactive elements */
  button:focus,
  a:focus,
  input:focus,
  textarea:focus,
  select:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(10, 29, 55, 0.1);
  }
  
  [data-theme="dark"] button:focus,
  [data-theme="dark"] a:focus,
  [data-theme="dark"] input:focus,
  [data-theme="dark"] textarea:focus,
  [data-theme="dark"] select:focus {
    outline-color: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.3);
  }
  
  /* Ensure sufficient color contrast for error messages */
  .error-message {
    color: #DC2626;
  }
  
  [data-theme="dark"] .error-message {
    color: #FCA5A5;
  }
  
  /* Improved button hover states for accessibility */
  .btn-primary:hover,
  .btn-primary:focus {
    background-color: var(--navy);
    color: white;
    transform: translateY(-1px);
  }
  
  .btn-secondary:hover,
  .btn-secondary:focus {
    background-color: #d1c1a5;
    transform: translateY(-1px);
  }
  
  /* Enhanced mobile menu accessibility */
  #mobile-menu {
    transition: all 0.3s ease;
  }
  
  /* Form validation feedback */
  .form-input[aria-invalid="true"] {
    border-color: #DC2626;
    box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.1);
  }
  
  [data-theme="dark"] .form-input[aria-invalid="true"] {
    border-color: #FCA5A5;
    box-shadow: 0 0 0 2px rgba(252, 165, 165, 0.2);
  }
  
  /* Enhanced dark mode text contrast fixes */
  [data-theme="dark"] .text-text-light {
    color: var(--text-secondary) !important;
  }
  
  [data-theme="dark"] .text-text-dark {
    color: var(--text-primary) !important;
  }
  
  [data-theme="dark"] .text-khaki {
    color: var(--accent-secondary) !important;
  }
  
  /* Dark mode specific Tailwind overrides */
  [data-theme="dark"] .text-gray-500 {
    color: var(--text-secondary) !important;
  }
  
  [data-theme="dark"] .text-gray-600 {
    color: var(--text-secondary) !important;
  }
  
  [data-theme="dark"] .text-gray-700 {
    color: var(--text-primary) !important;
  }
  
  [data-theme="dark"] .text-green-700 {
    color: #4ADE80 !important; /* High contrast green for success messages */
  }
  
  [data-theme="dark"] .bg-green-100 {
    background-color: #064E3B !important;
    border-color: #059669 !important;
  }
  
  [data-theme="dark"] .bg-off-white {
    background-color: var(--card-bg) !important;
  }
  
  [data-theme="dark"] .bg-light-khaki {
    background-color: #92400E !important;
  }
  
  /* Dark mode carousel improvements */
  [data-theme="dark"] .carousel-nav {
    background: rgba(248, 250, 252, 0.9) !important;
    color: var(--bg-primary) !important;
  }
  
  [data-theme="dark"] .carousel-nav:hover {
    background: rgba(248, 250, 252, 1) !important;
  }
  
  [data-theme="dark"] .carousel-indicator {
    background: rgba(248, 250, 252, 0.5) !important;
  }
  
  [data-theme="dark"] .carousel-indicator:hover {
    background: rgba(248, 250, 252, 0.8) !important;
  }
  
  [data-theme="dark"] .carousel-indicator.active {
    background: #F8FAFC !important;
  }
  
  /* Dark mode social card improvements */
  [data-theme="dark"] .social-card .bg-white {
    background-color: var(--card-bg) !important;
  }
  
  /* Dark mode version display */
  [data-theme="dark"] .version-display {
    color: var(--accent-secondary) !important;
  }
  
  /* Dark mode loading states */
  [data-theme="dark"] .border-t-2 {
    border-top-color: var(--accent-primary) !important;
  }
  
  [data-theme="dark"] .border-b-2 {
    border-bottom-color: var(--accent-primary) !important;
  }
  
  /* Dark mode hover states for links */
  [data-theme="dark"] a:hover {
    color: var(--accent-primary) !important;
  }
  
  /* Ensure proper contrast for all headings */
  [data-theme="dark"] h1,
  [data-theme="dark"] h2,
  [data-theme="dark"] h3,
  [data-theme="dark"] h4,
  [data-theme="dark"] h5,
  [data-theme="dark"] h6 {
    color: var(--text-primary) !important;
  }
  
  /* Dark mode form labels */
  [data-theme="dark"] .form-label {
    color: var(--text-primary) !important;
  }
  
  /* Dark mode nav link active state */
  [data-theme="dark"] .nav-link.active:after {
    background-color: var(--accent-primary) !important;
  }
  
  [data-theme="dark"] .nav-link:hover:after {
    background-color: var(--accent-secondary) !important;
  }

/* WCAG AA compliant dark mode social media cards */
[data-theme="dark"] .text-khaki {
  color: #FBBF24 !important; /* High contrast amber (8:1 ratio) for better readability */
}

/* Ensure social card usernames have excellent contrast */
[data-theme="dark"] .social-card .text-khaki {
  color: #FCD34D !important; /* Even higher contrast amber for social usernames */
  font-weight: 600 !important; /* Slightly bolder for better readability */
}

/* Enhanced hover effect for dark mode social cards */
[data-theme="dark"] .social-card:hover .text-khaki {
  color: #FEF3C7 !important; /* Lightest amber on hover for maximum contrast */
}