/* WCAG 2.1 AA Accessibility Improvements for Blocks */

/* Focus Management and Keyboard Navigation */
.hero-block__btn-primary:focus,
.hero-block__btn-secondary:focus,
.content-image-block .btn:focus,
.cta-block__btn-primary:focus,
.cta-block__btn-secondary:focus,
.video-hero-block__btn:focus,
.research-block__primary:focus,
.research-block__secondary:focus {
    outline: 3px solid var(--generic-focus-ring);
    outline-offset: 2px;
    box-shadow: 0 0 0 2px var(--generic-surface), 0 0 0 5px var(--generic-focus-ring);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .hero-block__overlay {
        background: rgba(0, 0, 0, 0.8) !important;
    }
    
    .features-grid-block__icon {
        border: 2px solid currentColor;
    }
    
    .testimonials-block__item {
        border: 2px solid #333;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .features-grid-block__item,
    .testimonials-block__item,
    .stats-block__item {
        transition: none;
    }
    
    .features-grid-block__item:hover,
    .testimonials-block__item:hover {
        transform: none;
    }
}

/* Color Contrast Improvements */
.hero-block {
    /* Ensure minimum 4.5:1 contrast ratio */
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

.features-grid-block__item-description,
.testimonials-block__author-school,
.category-entry-list .excerpt {
    color: var(--generic-text-muted);
}

/* Screen Reader Improvements */
.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;
}

/* Skip Links for Block Navigation */
.block-skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
    border-radius: 4px;
}

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

/* Improved Touch Targets (minimum 44px) */
.hero-block__btn-primary,
.hero-block__btn-secondary,
.content-image-block .btn,
.cta-block__btn-primary,
.cta-block__btn-secondary {
    min-height: 44px;
    min-width: 44px;
    padding: 12px 24px;
}

/* Table Block Accessibility Improvements */
.table-block__table-wrapper {
    outline: none;
}

.table-block__table-wrapper:focus-within {
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.35);
}

.table-block__caption {
    font-style: italic;
}

.table-block__table th,
.table-block__table td {
    border-color: rgba(26, 54, 93, 0.25);
}

@media (prefers-reduced-motion: reduce) {
    .table-block__row {
        transition: none;
    }
}

/* Better Visual Hierarchy */
.features-grid-block__title,
.stats-block__title,
.testimonials-block__title,
.cta-block__title {
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

/* Improved Error States */
.block-fallback {
    border: 2px dashed rgba(197, 48, 48, 0.7);
    background: rgba(254, 222, 222, 0.7);
    color: #742a2a;
    border-radius: var(--generic-radius-md);
}

.block-fallback .alert {
    background: transparent;
    border: none;
    color: inherit;
    margin: 0;
}

/* Loading States */
.block-loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    min-height: 200px;
    border-radius: 8px;
}

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

/* Print Styles */
@media print {
    .hero-block,
    .stats-block,
    .cta-block {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
    
    .hero-block__overlay {
        display: none;
    }
    
    .hero-block__actions,
    .cta-block__actions {
        display: none;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .content-image-block--white,
    .paragraph-block,
    .team-leaders-block,
    .case-studies-block {
        background: #101c30;
        color: var(--generic-on-dark);
    }

    .testimonials-block {
        background: #172741;
    }

    .testimonials-block__item {
        background: rgba(15, 23, 42, 0.55);
        color: var(--generic-on-dark);
    }

    .features-grid-block__item-description,
    .category-entry-list .excerpt {
        color: rgba(245, 247, 255, 0.75);
    }
}

/* Luxury Button and Card Focus */
.luxury-btn-striking:focus,
.category-card:focus-within,
.service-card:focus-within,
.testimonial-card:focus-within,
.project-gallery-item:focus-within {
    outline: 3px solid var(--generic-focus-ring);
    outline-offset: 4px;
}

/* Reduced Motion for new cards */
@media (prefers-reduced-motion: reduce) {
    .category-card,
    .service-card,
    .testimonial-card,
    .project-gallery-item,
    .project-gallery-item__media img,
    .project-gallery-item__content,
    .category-card__link,
    .reveal-init {
        transition: none !important;
        transform: none !important;
        animation: none !important;
        opacity: 1 !important;
    }
}

/* High Contrast for new cards */
@media (prefers-contrast: high) {
    .category-card,
    .service-card,
    .testimonial-card,
    .project-gallery-item {
        border: 2px solid currentColor !important;
    }
    .project-gallery-item__overlay {
        background: rgba(0, 0, 0, 0.85) !important;
        opacity: 1 !important;
    }
}