/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Debug styles to ensure content is visible */
main {
    min-height: 100vh;
    display: block;
    visibility: visible;
}

section {
    display: block;
    width: 100%;
    visibility: visible;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: block;
    visibility: visible;
}

/* Navigation */
.navbar {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
    color: #ffd700;
}

.nav-buttons {
    display: flex;
    gap: 15px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(45deg, #00ff88, #00d4aa);
    color: white;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.5);
    background: linear-gradient(45deg, #00ff99, #00e6bb);
}

.btn-secondary {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #333;
    border: 2px solid #ffd700;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.btn-secondary:hover {
    background: linear-gradient(45deg, #ffed4e, #fff176);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4);
    color: #222;
}

.btn-login {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-register {
    background: #ffd700;
    color: #333;
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1em;
}

/* Breadcrumb */
.breadcrumb {
    background: #e9ecef;
    padding: 10px 0;
}

.breadcrumb-list {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    list-style: none;
    display: flex;
    gap: 10px;
}

.breadcrumb-item a {
    color: #667eea;
    text-decoration: none;
}

.breadcrumb-item a:hover {
    text-decoration: underline;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 80px 0;
    display: flex;
    align-items: center;
    min-height: 500px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2em;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 30px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* Sections */
section {
    padding: 60px 0;
}

section h2 {
    font-size: 2.5em;
    text-align: center;
    margin-bottom: 40px;
    color: #333;
}

section h3 {
    font-size: 1.5em;
    margin-bottom: 20px;
    color: #667eea;
}

/* Brand Introduction */
.brand-intro {
    background: white;
}

.brand-intro p {
    font-size: 1.1em;
    margin-bottom: 20px;
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Platform Features */
.platform-features {
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card img {
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: #333;
}

/* Registration Process */
.registration-process {
    background: white;
}

.process-content {
    max-width: 800px;
    margin: 0 auto;
}

.process-content p {
    margin-bottom: 20px;
    font-size: 1.1em;
}

/* Advantages and Security */
.advantages-security {
    background: #f8f9fa;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.advantage-item h3 {
    margin-bottom: 15px;
    color: #333;
}

/* FAQ Section */
.faq-section {
    background: white;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 30px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.faq-item h3 {
    margin-bottom: 15px;
    color: #333;
}

.faq-item p {
    margin-bottom: 0;
}

.faq-item a {
    color: #667eea;
    text-decoration: none;
}

.faq-item a:hover {
    text-decoration: underline;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    text-align: center;
}

.cta-section h2 {
    color: white;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary {
    background: linear-gradient(45deg, #00ff88, #00d4aa);
    color: white;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.cta-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.5);
    background: linear-gradient(45deg, #00ff99, #00e6bb);
}

.cta-buttons .btn-secondary {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #333;
    border: 2px solid #ffd700;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.cta-buttons .btn-secondary:hover {
    background: linear-gradient(45deg, #ffed4e, #fff176);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4);
    color: #222;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: #ffd700;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #ffd700;
}

.footer-bottom {
    border-top: 1px solid #555;
    padding-top: 20px;
    text-align: center;
    color: #ccc;
}

.footer-bottom a {
    color: #ffd700;
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 15px 20px;
    }
    
    .nav-menu {
        margin: 15px 0;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-container {
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2em;
    }
    
    .hero-buttons,
    .cta-buttons {
        justify-content: center;
    }
    
    .features-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    section h2 {
        font-size: 2em;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .hero h1 {
        font-size: 1.8em;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 0.9em;
    }
    
    .feature-card,
    .advantage-item,
    .faq-item {
        padding: 20px;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.btn:focus,
.nav-menu a:focus,
.footer-section a:focus {
    outline: 2px solid #ffd700;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn-primary {
        background: #000;
        color: #fff;
    }
    
    .btn-secondary {
        background: #fff;
        color: #000;
        border-color: #000;
    }
}

/* Page-specific styles */
.page-hero {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-hero h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.page-hero .hero-subtitle {
    font-size: 1.2em;
    margin-bottom: 10px;
    opacity: 0.9;
}

.last-updated {
    font-size: 0.9em;
    opacity: 0.8;
    font-style: italic;
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
    display: block;
    visibility: visible;
}

.content-wrapper h2 {
    text-align: left;
    margin-bottom: 20px;
    color: #333;
    display: block;
    visibility: visible;
}

.content-wrapper h3 {
    margin-bottom: 15px;
    color: #ff6b6b;
    display: block;
    visibility: visible;
}

.content-wrapper p {
    margin-bottom: 15px;
    line-height: 1.7;
    display: block;
    visibility: visible;
}

.content-wrapper ul {
    margin-bottom: 15px;
    padding-left: 20px;
    display: block;
    visibility: visible;
}

.content-wrapper li {
    margin-bottom: 8px;
    display: block;
    visibility: visible;
}

/* About Us specific styles */
.about-content {
    background: white;
    padding: 60px 0;
    min-height: 400px;
    display: block;
    visibility: visible;
}


.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 30px 0;
    visibility: visible;
}

.value-item {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid #ff6b6b;
    display: block;
    visibility: visible;
}

.value-item h3 {
    margin-bottom: 15px;
    color: #333;
    display: block;
    visibility: visible;
}

/* Policy pages specific styles */
.policy-content,
.terms-content,
.disclaimer-content {
    background: white;
    padding: 60px 0;
    min-height: 400px;
    display: block;
    visibility: visible;
}


.policy-content h2,
.terms-content h2,
.disclaimer-content h2 {
    color: #333;
    border-bottom: 2px solid #ff6b6b;
    padding-bottom: 10px;
    margin-bottom: 25px;
    display: block;
    visibility: visible;
}

.policy-content h3,
.terms-content h3,
.disclaimer-content h3 {
    color: #555;
    margin-top: 25px;
    margin-bottom: 15px;
    display: block;
    visibility: visible;
}

/* Support page specific styles */
.support-content {
    background: white;
    padding: 60px 0;
    min-height: 400px;
    display: block;
    visibility: visible;
}


.support-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
    visibility: visible;
}

.support-method {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    display: block;
    visibility: visible;
}

.support-method h3 {
    color: #333;
    margin-bottom: 15px;
    display: block;
    visibility: visible;
}

.support-button {
    margin-top: 20px;
    display: block;
    visibility: visible;
}

.contact-info {
    margin-top: 15px;
    text-align: left;
    display: block;
    visibility: visible;
}

.contact-info p {
    margin-bottom: 5px;
    display: block;
    visibility: visible;
}

.support-cta {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    margin: 40px 0;
    display: block;
    visibility: visible;
}

.support-cta h2 {
    color: white;
    margin-bottom: 15px;
    display: block;
    visibility: visible;
}

.support-cta p {
    margin-bottom: 25px;
    opacity: 0.9;
    display: block;
    visibility: visible;
}

.issues-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 30px 0;
    visibility: visible;
}

.issue-category {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    display: block;
    visibility: visible;
}

.issue-category h3 {
    color: #333;
    margin-bottom: 15px;
    display: block;
    visibility: visible;
}

.issue-category ul {
    list-style: none;
    padding-left: 0;
    display: block;
    visibility: visible;
}

.issue-category li {
    padding: 5px 0;
    border-bottom: 1px solid #e9ecef;
    display: block;
    visibility: visible;
}

.issue-category li:last-child {
    border-bottom: none;
    display: block;
    visibility: visible;
}

/* 404 Error page styles */
.error-section {
    padding: 80px 0;
    background: white;
    display: block;
    visibility: visible;
}

.error-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 60px;
    visibility: visible;
}

.error-visual img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    display: block;
    visibility: visible;
}

.error-text h1 {
    font-size: 3em;
    color: #ff6b6b;
    margin-bottom: 10px;
    display: block;
    visibility: visible;
}

.error-text h2 {
    font-size: 2em;
    color: #333;
    margin-bottom: 20px;
    display: block;
    visibility: visible;
}

.error-suggestions {
    margin: 30px 0;
    display: block;
    visibility: visible;
}

.error-suggestions h3 {
    color: #333;
    margin-bottom: 15px;
    display: block;
    visibility: visible;
}

.error-suggestions ul {
    list-style: none;
    padding-left: 0;
    display: block;
    visibility: visible;
}

.error-suggestions li {
    padding: 8px 0;
    border-bottom: 1px solid #e9ecef;
    display: block;
    visibility: visible;
}

.error-suggestions li:before {
    content: "✓ ";
    color: #ff6b6b;
    font-weight: bold;
    display: inline;
    visibility: visible;
}

.error-actions {
    margin-top: 30px;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    visibility: visible;
}

.popular-pages {
    margin: 60px 0;
    text-align: center;
    display: block;
    visibility: visible;
}

.popular-pages h3 {
    margin-bottom: 30px;
    color: #333;
    display: block;
    visibility: visible;
}

.pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    visibility: visible;
}

.page-link a {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #333;
    transition: transform 0.3s ease;
    visibility: visible;
}

.page-link a:hover {
    transform: translateY(-5px);
    visibility: visible;
}

.page-link img {
    margin-bottom: 10px;
    display: block;
    visibility: visible;
}

.search-section {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    margin: 40px 0;
    display: block;
    visibility: visible;
}

.search-section h3 {
    margin-bottom: 15px;
    color: #333;
    display: block;
    visibility: visible;
}

.search-box {
    max-width: 500px;
    margin: 20px auto 0;
    display: flex;
    gap: 10px;
    visibility: visible;
}

.search-box input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 25px;
    font-size: 1em;
    display: block;
    visibility: visible;
}

.search-box button {
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    background: #ff6b6b;
    color: white;
    cursor: pointer;
    transition: background 0.3s ease;
    display: block;
    visibility: visible;
}

.search-box button:hover {
    background: #ee5a24;
    visibility: visible;
}

.support-section {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    margin: 40px 0;
    display: block;
    visibility: visible;
}

.support-section h3 {
    color: white;
    margin-bottom: 15px;
    display: block;
    visibility: visible;
}

.support-section p {
    margin-bottom: 25px;
    opacity: 0.9;
    display: block;
    visibility: visible;
}

.support-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    visibility: visible;
}

/* Features Table Styles */
.features-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: table;
    visibility: visible;
}

.features-table th {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 20px;
    text-align: left;
    font-weight: 600;
    font-size: 1.1em;
    display: table-cell;
    visibility: visible;
}

.features-table td {
    padding: 20px;
    border-bottom: 1px solid #f0f0f0;
    vertical-align: top;
    display: table-cell;
    visibility: visible;
}

.features-table tr:hover {
    background: #f8f9fa;
    transition: background 0.3s ease;
    visibility: visible;
}

.features-table tr:last-child td {
    border-bottom: none;
    visibility: visible;
}

/* Feature icons removed - using emoji instead */

.feature-title {
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    font-size: 1.1em;
    display: block;
    visibility: visible;
}

.feature-description {
    color: #666;
    line-height: 1.6;
    display: block;
    visibility: visible;
}

.feature-benefit {
    background: #e8f5e8;
    color: #2d5a2d;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
    display: inline-block;
    margin-top: 8px;
    visibility: visible;
}

.section-intro {
    text-align: center;
    font-size: 1.1em;
    color: #666;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    display: block;
    visibility: visible;
}

.features-cta {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    margin-top: 50px;
    display: block;
    visibility: visible;
}

.features-cta .btn-primary {
    background: linear-gradient(45deg, #00ff88, #00d4aa);
    color: white;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    visibility: visible;
}

.features-cta .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.5);
    background: linear-gradient(45deg, #00ff99, #00e6bb);
    visibility: visible;
}

.features-cta .btn-secondary {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #333;
    border: 2px solid #ffd700;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
    visibility: visible;
}

.features-cta .btn-secondary:hover {
    background: linear-gradient(45deg, #ffed4e, #fff176);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4);
    color: #222;
    visibility: visible;
}

.features-cta h3 {
    color: white;
    margin-bottom: 15px;
    font-size: 1.5em;
    display: block;
    visibility: visible;
}

.features-cta p {
    margin-bottom: 25px;
    opacity: 0.9;
    font-size: 1.1em;
    display: block;
    visibility: visible;
}

/* Responsive adjustments for new pages */
@media (max-width: 768px) {
    .error-content {
        grid-template-columns: 1fr;
        text-align: center;
        visibility: visible;
    }
    
    .error-text h1 {
        font-size: 2em;
        visibility: visible;
    }
    
    .error-text h2 {
        font-size: 1.5em;
        visibility: visible;
    }
    
    .error-actions,
    .support-actions {
        justify-content: center;
        visibility: visible;
    }
    
    .search-box {
        flex-direction: column;
        visibility: visible;
    }
    
    .search-box input,
    .search-box button {
        width: 100%;
        visibility: visible;
    }
    
    .support-methods {
        grid-template-columns: 1fr;
        visibility: visible;
    }
    
    .issues-section {
        grid-template-columns: 1fr;
        visibility: visible;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
        visibility: visible;
    }
    
    .features-table {
        font-size: 0.9em;
        visibility: visible;
    }
    
    .features-table th,
    .features-table td {
        padding: 15px 10px;
        visibility: visible;
    }
    
    /* Feature icons removed - using emoji instead */
}

/* Banner Images */
.banner-section {
    padding: 40px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    margin: 30px 0;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.banner-image {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.banner-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.2);
}

.banner-img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: cover;
    display: block;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.banner-img:hover {
    transform: scale(1.02);
}

/* Responsive Banner Styles */
@media (max-width: 768px) {
    .banner-section {
        padding: 20px 0;
        margin: 20px 0;
    }
    
    .banner-img {
        max-height: 200px;
    }
    
    .banner-image {
        margin: 0 10px;
    }
}

/* Image Optimization Styles */
img {
    max-width: 100%;
    height: auto;
    transition: opacity 0.3s ease;
}

img.lazy {
    opacity: 0;
    filter: blur(5px);
}

img.loaded {
    opacity: 1;
    filter: blur(0);
}

img.loading {
    opacity: 0.7;
}

img.error {
    opacity: 0.5;
    filter: grayscale(100%);
}

/* Image Format Support Indicators */
img.webp-loaded,
img.avif-loaded {
    /* Add subtle animation for optimized images */
    animation: optimizedFadeIn 0.5s ease-in-out;
}

img.avif-loaded {
    /* AVIF gets a special indicator */
    border: 1px solid rgba(0, 255, 136, 0.3);
}

@keyframes optimizedFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Progressive image loading */
img[data-src] {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Responsive Images */
img[data-srcset] {
    width: 100%;
    height: auto;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    z-index: 10000;
    transition: top 0.3s;
}

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

/* Performance Optimizations */
* {
    box-sizing: border-box;
}

/* Reduce layout shifts */
img {
    aspect-ratio: attr(width) / attr(height);
}

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

/* Service Worker Update Notification */
.update-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #ff6b6b, #ff8e53);
    color: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    max-width: 350px;
    animation: slideInRight 0.5s ease-out;
}

.update-content h3 {
    margin: 0 0 10px 0;
    font-size: 1.2em;
    font-weight: 600;
}

.update-content p {
    margin: 0 0 15px 0;
    font-size: 0.9em;
    opacity: 0.9;
}

.update-content .btn {
    margin-right: 10px;
    padding: 8px 16px;
    font-size: 0.85em;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Offline Indicator */
.offline-indicator {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #ff6b6b;
    color: white;
    text-align: center;
    padding: 10px;
    z-index: 10001;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.offline-indicator.show {
    transform: translateY(0);
}

/* Performance Indicators */
.performance-indicator {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 15px;
    border-radius: 8px;
    font-size: 0.8em;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.performance-indicator.show {
    opacity: 1;
}

.performance-indicator .metric {
    display: flex;
    justify-content: space-between;
    margin: 2px 0;
}

.performance-indicator .metric.good {
    color: #4ade80;
}

.performance-indicator .metric.warning {
    color: #fbbf24;
}

.performance-indicator .metric.bad {
    color: #f87171;
}

/* Resource Loading Indicators */
.resource-loading {
    position: relative;
    overflow: hidden;
}

.resource-loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}