/* SEO Enhancement Styles */

/* Screen Reader Only Content */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Skip Navigation Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent-color, #065cc2);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 100000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 6px;
}

/* Breadcrumb Navigation */
.breadcrumb-nav {
    background: transparent;
    padding: 0;
    margin: 0 0 20px 0;
    font-size: 0.9rem;
}

.breadcrumb-nav ol {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.breadcrumb-nav li {
    display: flex;
    align-items: center;
}

.breadcrumb-nav li:not(:last-child)::after {
    content: '›';
    margin: 0 8px;
    color: var(--default-color, #314862);
    opacity: 0.6;
}

.breadcrumb-nav a {
    color: var(--accent-color, #065cc2);
    text-decoration: none;
    transition: opacity 0.2s;
}

.breadcrumb-nav a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.breadcrumb-nav .current {
    color: var(--default-color, #314862);
    font-weight: 500;
}

/* Enhanced Focus Styles for Accessibility */
*:focus {
    outline: 2px solid var(--accent-color, #065cc2);
    outline-offset: 2px;
}

button:focus,
a:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--accent-color, #065cc2);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {

    .hero-title,
    .section-title h2 {
        text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    }

    .btn {
        border: 2px solid currentColor;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {

    .typed,
    .floating-card,
    .animate-on-scroll {
        animation: none !important;
        transition: none !important;
    }

    .parallax-element {
        transform: none !important;
    }
}

/* Print Styles for SEO */
@media print {

    .theme-toggle-enhanced,
    .chatbot-container,
    .scroll-top,
    .page-loader {
        display: none !important;
    }

    .hero-title {
        font-size: 2rem !important;
    }

    .section-title h2 {
        font-size: 1.5rem !important;
        page-break-after: avoid;
    }

    .skill-card,
    .education-item {
        page-break-inside: avoid;
        margin-bottom: 1rem;
    }

    a[href^="http"]:after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }

    .contact-info {
        page-break-inside: avoid;
    }
}

/* Language Direction Support */
[dir="rtl"] .breadcrumb-nav li:not(:last-child)::after {
    content: '‹';
}

/* Enhanced Link Styles for SEO */
a[href^="mailto:"] {
    word-break: break-all;
}

a[href^="tel:"] {
    white-space: nowrap;
}

/* Microdata and Schema.org Support */
[itemscope] {
    position: relative;
}

/* Enhanced Image Loading */
img[loading="lazy"] {
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* Critical CSS for Above-the-Fold Content */
.hero {
    contain: layout style paint;
}

.hero-title {
    font-display: swap;
}

/* Performance Optimizations */
.skill-card,
.education-item,
.portfolio-item {
    contain: layout style paint;
}

/* Enhanced Typography for SEO */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-feature-settings: "kern" 1, "liga" 1;
    text-rendering: optimizeLegibility;
}

/* Better Text Contrast */
.hero-title,
.section-title h2 {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Enhanced Button Accessibility */
.btn[aria-pressed="true"] {
    background-color: var(--accent-color, #065cc2);
    color: var(--contrast-color, #ffffff);
}

/* Loading States for Better UX */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--accent-color, #065cc2);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Enhanced Error States */
.error {
    color: #dc3545;
    border-color: #dc3545;
}

.success {
    color: #28a745;
    border-color: #28a745;
}

/* Better Form Accessibility */
.form-group {
    position: relative;
}

.form-control:invalid {
    border-color: #dc3545;
}

.form-control:valid {
    border-color: #28a745;
}

/* Enhanced Navigation for Screen Readers */
.nav-link[aria-current="page"] {
    font-weight: 600;
    color: var(--accent-color, #065cc2);
}

/* Better Table Accessibility */
table {
    border-collapse: collapse;
    width: 100%;
}

th {
    text-align: left;
    font-weight: 600;
}

/* Enhanced List Styles */
ul[role="list"],
ol[role="list"] {
    list-style: none;
    padding: 0;
}

/* Better Card Accessibility */
.card {
    position: relative;
}

.card[tabindex="0"]:focus {
    outline: 2px solid var(--accent-color, #065cc2);
    outline-offset: 2px;
}

/* Enhanced Modal Accessibility */
.modal[aria-hidden="true"] {
    display: none;
}

.modal[aria-hidden="false"] {
    display: flex;
}

/* Better Tooltip Accessibility */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::after,
[data-tooltip]:focus::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 1000;
}

/* Image Loading States */
img.loading {
    opacity: 0.5;
    filter: blur(2px);
}

img.loaded {
    opacity: 1 !important;
    filter: none;
    transition: opacity 0.3s ease, filter 0.3s ease;
}

img.image-error {
    opacity: 0.7;
    filter: grayscale(100%);
}

/* Ensure portfolio images are visible */
.portfolio .portfolio-entry .entry-image img {
    opacity: 1 !important;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Fix for lazy loading images */
img[loading="lazy"] {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Portfolio image container fix */
.portfolio .portfolio-item .entry-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Dark theme portfolio images */
.dark-theme .portfolio .portfolio-item .entry-image {
    background: var(--surface-color, #2d3748);
}

/* Image loading animation */
@keyframes imageLoad {
    from {
        opacity: 0;
        transform: scale(1.05);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

img.loaded {
    animation: imageLoad 0.3s ease-out;
}

/* Fallback for images that don't load */
.portfolio .portfolio-entry .entry-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    z-index: -1;
}

.dark-theme .portfolio .portfolio-entry .entry-image::before {
    background: linear-gradient(135deg, var(--surface-color, #2d3748) 0%, #1a202c 100%);
}