/* ============================================
   5iX Website - Accessibility & Enhancement Styles
   ============================================ */

/* Skip Link for Keyboard Navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 0 0 4px 0;
    z-index: 10000;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}

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

/* Focus Visible for Keyboard Navigation */
body.keyboard-nav *:focus {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

body:not(.keyboard-nav) *:focus {
    outline: none;
}

/* Improved Focus Styles for Interactive Elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ============================================
   Form Validation Styles
   ============================================ */

/* Valid Field */
.form-group input.valid,
.form-group textarea.valid {
    border-color: #10b981;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2310b981' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

/* Error Field */
.form-group input.error,
.form-group textarea.error {
    border-color: #ef4444;
    background-color: rgba(239, 68, 68, 0.05);
}

/* Error Message */
.form-error {
    display: block;
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 6px;
    font-weight: 500;
}

/* Form Group with Error */
.form-group.has-error input,
.form-group.has-error textarea {
    border-color: #ef4444;
}

/* Loading State for Form Submit */
button[aria-busy="true"] {
    opacity: 0.7;
    cursor: wait;
    position: relative;
}

button[aria-busy="true"]::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: translateY(-50%) rotate(360deg); }
}

/* Success Button State */
button.success {
    background: linear-gradient(135deg, #10b981, #059669) !important;
}

/* Error Button State */
button.error {
    background: linear-gradient(135deg, #ef4444, #dc2626) !important;
}

/* ============================================
   Improved Color Contrast
   ============================================ */

/* Ensure minimum 4.5:1 contrast ratio for text */
.hero-subtitle {
    color: #cbd5e1; /* Improved contrast from var(--gray-light) */
}

.section-desc {
    color: #cbd5e1;
}

.contact-desc {
    color: #cbd5e1;
}

.service-card p {
    color: #cbd5e1;
}

.footer-brand p,
.footer-links a,
.footer-bottom p,
.footer-legal a {
    color: #cbd5e1;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --gray-light: #e2e8f0;
        --gray: #94a3b8;
    }

    .service-card,
    .footer,
    .contact-form-wrapper {
        border-width: 2px;
    }
}

/* ============================================
   Breadcrumb Navigation
   ============================================ */

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
    font-size: 0.875rem;
    color: var(--gray-light);
}

.breadcrumb a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--primary-light);
}

.breadcrumb-separator {
    color: var(--gray);
}

.breadcrumb [aria-current="page"] {
    color: var(--white);
    font-weight: 500;
}

/* ============================================
   Improved Table Accessibility
   ============================================ */

table {
    border-collapse: collapse;
    width: 100%;
}

th {
    text-align: left;
    font-weight: 600;
    padding: 12px;
    background: var(--dark-light);
    border-bottom: 2px solid var(--primary);
}

td {
    padding: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================
   Loading States
   ============================================ */

.loading-skeleton {
    background: linear-gradient(90deg,
        var(--dark-light) 25%,
        rgba(255,255,255,0.05) 50%,
        var(--dark-light) 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: var(--radius);
}

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

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .navbar,
    .cookie-banner,
    .chat-widget,
    .hero-scroll,
    .btn,
    .cta-section,
    footer {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    a {
        text-decoration: underline;
    }

    a[href]:after {
        content: " (" attr(href) ")";
    }
}

/* ============================================
   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;
    }

    #particles {
        display: none;
    }

    .clients-track {
        animation: none;
    }
}

/* ============================================
   Dark Mode Support (for future implementation)
   ============================================ */

@media (prefers-color-scheme: light) {
    /* Light mode overrides would go here if needed */
}

/* ============================================
   Responsive Image Lazy Loading
   ============================================ */

img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded,
img:not([loading]) {
    opacity: 1;
}

/* Blur-up effect for images */
.blur-load {
    background-size: cover;
    background-position: center;
}

.blur-load img {
    opacity: 0;
    transition: opacity 0.3s;
}

.blur-load img.loaded {
    opacity: 1;
}

/* ============================================
   Enhanced Client Logos
   ============================================ */

.client-logo {
    height: 80px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    filter: grayscale(100%) brightness(1.5);
    transition: var(--transition);
}

.client-logo:hover {
    filter: grayscale(0%) brightness(1);
}

/* ============================================
   Partner Logos with Better Sizing
   ============================================ */

.partner-logo {
    height: 60px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
}

/* ============================================
   Improved Service Images
   ============================================ */

.service-image {
    position: relative;
    overflow: hidden;
}

.service-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.7) 100%);
    pointer-events: none;
}

/* ============================================
   Mobile Navigation Improvements
   ============================================ */

@media (max-width: 968px) {
    .nav-menu {
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        box-shadow: -8px 0 24px rgba(0, 0, 0, 0.3);
    }
}

/* ============================================
   Touch Target Size (minimum 44x44px)
   ============================================ */

button,
a.btn,
.nav-link,
.faq-question,
.chat-toggle {
    min-height: 44px;
    min-width: 44px;
}

@media (hover: none) and (pointer: coarse) {
    /* Touch device specific styles */
    button,
    a.btn {
        min-height: 48px;
        padding: 12px 24px;
    }

    .nav-link {
        padding: 12px 0;
    }
}

/* ============================================
   Form Enhancements for Mobile
   ============================================ */

@media (max-width: 640px) {
    input,
    textarea,
    select {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* ============================================
   Status Messages
   ============================================ */

.status-message {
    padding: 16px 20px;
    border-radius: 8px;
    margin: 16px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-message.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid #10b981;
    color: #10b981;
}

.status-message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #ef4444;
    color: #ef4444;
}

.status-message.info {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--primary);
    color: var(--primary-light);
}

/* ============================================
   Tooltips (for future use)
   ============================================ */

[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;
    background: var(--dark);
    color: white;
    font-size: 0.875rem;
    white-space: nowrap;
    border-radius: 4px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    margin-bottom: 8px;
    z-index: 1000;
}

[data-tooltip]:hover::before,
[data-tooltip]:focus::before {
    opacity: 1;
}