/* SEO & Accessibility Enhancements */

/* Skip Navigation Link */
.skip-nav-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #000;
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 4px 0;
}

.skip-nav-link:focus {
    top: 0;
    outline: 3px solid #f59e0b;
}

/* Focus Indicators for Keyboard Navigation */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 3px solid #f59e0b;
    outline-offset: 2px;
}

/* Ensure focus is visible */
*:focus-visible {
    outline: 3px solid #f59e0b !important;
    outline-offset: 2px;
}

/* Remove default outline for mouse users (using :focus-visible) */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Better link focus for accessibility */
a:focus-visible {
    outline: 3px solid #f59e0b;
    outline-offset: 2px;
    border-radius: 2px;
}

/* Button focus states */
.btn:focus-visible,
button:focus-visible {
    outline: 3px solid #f59e0b;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.25);
}

/* Form input focus states */
.form-control:focus,
.form-control:focus-visible,
.form-select:focus,
.form-select:focus-visible {
    border-color: #f59e0b;
    box-shadow: 0 0 0 0.2rem rgba(245, 158, 11, 0.25);
}

/* Improve color contrast for interactive elements */
.navbar-nav .nav-link {
    position: relative;
}

.navbar-nav .nav-link:focus-visible::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #f59e0b;
}

/* Reduced motion support for accessibility */
@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;
    }
}

/* High contrast mode support */
@media (prefers-contrast: more) {
    body {
        font-weight: 500;
    }

    a {
        text-decoration: underline;
    }

    button {
        border-width: 2px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .skip-nav-link {
        background: #1a1a1a;
        color: #fff;
    }
}

/* Lazy loading placeholder */
img[loading="lazy"] {
    background-color: #f0f0f0;
}

/* Responsive images */
img {
    max-width: 100%;
    height: auto;
}

/* Picture element support */
picture {
    display: block;
}

/* Image loading optimization */
img {
    /* Fade in when loaded */
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
}

/* Placeholder styling while loading */
img:not([src]) {
    opacity: 0.5;
}

/* Ensure images don't cause layout shift */
img {
    aspect-ratio: auto;
}

/* Optimize image rendering */
img {
    image-rendering: high-quality;
    image-rendering: -webkit-optimize-contrast;
}

/* Support for modern image formats */
@supports (content: url('data:image/webp;')) {
    /* Browser supports WebP */
}

/* Fallback for older browsers */
@supports not (content: url('data:image/webp;')) {
    /* Use fallback formats */
}