/* Accessibility Enhancements for PublikaYA */

/* Skip Links */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary, #1EAA92);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    font-weight: 600;
    transition: top 0.3s ease;
}

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

/* Focus Indicators */
*:focus {
    outline: 2px solid var(--color-primary, #1EAA92);
    outline-offset: 2px;
}

/* High contrast focus for buttons */
.btn:focus,
button:focus {
    outline: 3px solid var(--color-primary, #1EAA92);
    outline-offset: 2px;
    box-shadow: 0 0 0 1px white, 0 0 0 4px var(--color-primary, #1EAA92);
}

/* Navigation focus improvements */
.nav-link:focus {
    background-color: rgba(30, 170, 146, 0.1);
    border-radius: 4px;
}

/* Form focus improvements */
input:focus,
textarea:focus,
select:focus {
    border-color: var(--color-primary, #1EAA92);
    box-shadow: 0 0 0 2px rgba(30, 170, 146, 0.2);
}

/* Screen reader only text */
.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;
}

/* Visible on focus for screen reader text */
.sr-only:focus {
    position: static;
    width: auto;
    height: auto;
    padding: 0.25rem 0.5rem;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
    background: var(--color-primary, #1EAA92);
    color: white;
    border-radius: 4px;
}

/* Loading states accessibility */
.loading[aria-live="polite"] {
    position: relative;
}

.loading-spinner[aria-hidden="true"] {
    /* Ensure spinner is hidden from screen readers */
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
}

/* Error states accessibility */
.error[role="alert"] {
    border-left: 4px solid #e53e3e;
    background-color: rgba(229, 62, 62, 0.1);
    padding: 1rem;
    border-radius: 4px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .nav-link {
        border: 1px solid transparent;
    }
    
    .nav-link:hover,
    .nav-link:focus {
        border-color: currentColor;
    }
}

/* Reduced motion support */
@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;
    }
    
    .loading-spinner {
        animation: none;
    }
}

/* Color contrast improvements */
.text-muted {
    color: #6c757d !important;
}

/* Ensure minimum touch target size (44px) */
.btn,
.nav-link,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
    min-height: 44px;
    min-width: 44px;
}

/* Keyboard navigation improvements */
.dropdown:focus-within .dropdown-menu {
    display: block;
}

/* Focus trap for modals */
.modal[aria-modal="true"] {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1050;
}

/* Announce dynamic content changes */
[aria-live="polite"],
[aria-live="assertive"] {
    position: relative;
}

/* Category cards accessibility */
.categoria-card {
    position: relative;
}

.categoria-card:focus-within {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Mobile menu accessibility */
.mobile-menu-toggle[aria-expanded="true"] + .mobile-menu {
    display: block;
}

/* Form validation accessibility */
.form-error {
    color: #e53e3e;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-error::before {
    content: "⚠ ";
    font-weight: bold;
}

/* Success messages */
.form-success {
    color: #38a169;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-success::before {
    content: "✓ ";
    font-weight: bold;
}

/* Responsive text scaling */
@media (max-width: 768px) {
    .btn,
    .nav-link {
        min-height: 48px; /* Larger touch targets on mobile */
        padding: 12px 16px;
    }
}

/* Print styles for accessibility */
@media print {
    .skip-link,
    .mobile-menu-toggle,
    .dropdown-menu {
        display: none !important;
    }
    
    .nav-link::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }
}