/* ===== ACCESSIBILITY STYLES ===== */

/* Skip Links */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary, #007bff);
    color: var(--color-white, #ffffff);
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 0 0 4px 4px;
    font-weight: var(--font-weight-bold, 700);
    font-size: var(--font-size-sm, 0.875rem);
    z-index: 9999;
    transition: top 0.3s ease;
    box-shadow: var(--shadow-lg, 0 4px 12px rgba(0, 0, 0, 0.15));
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--color-accent-orange, #ff8c42);
    outline-offset: 2px;
}

.skip-link:hover {
    background: var(--color-primary-dark, #0056b3);
    color: var(--color-white, #ffffff);
    text-decoration: none;
}

/* 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;
}

.sr-only-focusable:focus {
    position: static !important;
    width: auto !important;
    height: auto !important;
    padding: inherit !important;
    margin: inherit !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
}

/* Focus Indicators */
*:focus-visible {
    outline: 3px solid var(--color-primary, #007bff);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Enhanced focus for interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--color-primary, #007bff);
    outline-offset: 2px;
    box-shadow: 0 0 0 1px var(--color-white, #ffffff);
}

/* Focus for navigation elements */
nav a:focus-visible {
    background: var(--color-primary-alpha, rgba(0, 123, 255, 0.1));
    border-radius: var(--border-radius-sm, 0.25rem);
}

/* Focus for buttons */
button:focus-visible,
.clickable-button:focus-visible,
input[type="submit"]:focus-visible {
    outline: 3px solid var(--color-accent-orange, #ff8c42);
    outline-offset: 3px;
}

/* Focus for form elements */
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    border-color: var(--color-primary, #007bff);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
    outline: none;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .skip-link {
        background: #000000;
        color: #ffffff;
        border: 2px solid #ffffff;
    }
    
    .skip-link:focus {
        outline: 3px solid #ffffff;
        background: #000000;
    }
    
    *:focus-visible {
        outline: 3px solid #000000;
        background: #ffffff;
    }
    
    /* Ensure sufficient contrast for all interactive elements */
    a, button, input, textarea, select {
        border: 1px solid #000000;
    }
    
    /* Navigation contrast */
    nav a {
        background: #ffffff;
        color: #000000;
        border: 1px solid #000000;
    }
    
    nav a:hover,
    nav a:focus {
        background: #000000;
        color: #ffffff;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .skip-link {
        transition: none;
    }
    
    *:focus-visible {
        transition: none;
        animation: none;
    }
}

/* Color Contrast Improvements */
.text-high-contrast {
    color: #000000;
    background: #ffffff;
}

.bg-high-contrast {
    background: #000000;
    color: #ffffff;
}

/* ARIA Live Regions */
.live-region {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.live-region[aria-live="assertive"] {
    /* For important announcements */
    font-weight: var(--font-weight-bold, 700);
}

.live-region[aria-live="polite"] {
    /* For less critical updates */
    font-weight: var(--font-weight-normal, 400);
}

/* Keyboard Navigation Helpers */
.keyboard-navigation-active *:focus {
    outline: 3px solid var(--color-primary, #007bff);
    outline-offset: 2px;
}

/* Focus trap for modals */
.focus-trap {
    position: relative;
}

.focus-trap::before,
.focus-trap::after {
    content: '';
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

/* ===== FORM VALIDATION & ACCESSIBILITY STYLES ===== */

/* Improved form field styling */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text, #333);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e1e5e9;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #fff;
    box-sizing: border-box;
}

.form-group input:hover,
.form-group textarea:hover {
    border-color: #c6d0db;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

/* Character counter for textarea */
.form-group textarea + .char-counter {
    font-size: 0.8rem;
    color: #6c757d;
    text-align: right;
    margin-top: 0.25rem;
}

.form-group textarea.error + .char-counter {
    color: #dc3545;
}

/* Help text */
.form-group .help-text {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-muted, #6c757d);
    margin-top: 4px;
}

/* Required field indicator */
.form-group label .required::after,
.form-group label[for] .required::after {
    content: ' *';
    color: #dc3545;
    font-weight: var(--font-weight-bold, 700);
    margin-left: 2px;
}

/* Error states for form fields */
.form-group input.error,
.form-group textarea.error {
    border-color: #dc3545 !important;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2) !important;
    background-color: #fff5f5 !important;
}

/* Error states with better accessibility (ARIA) */
.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
    border-color: var(--color-error, #dc3545);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

/* Valid field styling */
.form-group input:valid:not(:placeholder-shown),
.form-group textarea:valid:not(:placeholder-shown) {
    border-color: #28a745;
    box-shadow: 0 0 0 2px rgba(40, 167, 69, 0.1);
}

/* Focus states with better accessibility */
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary, #007bff);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

.form-group input.error:focus,
.form-group textarea.error:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

/* Field error messages */
.field-error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideDown 0.3s ease-out;
}

.field-error::before {
    content: '⚠';
    font-size: 1rem;
    flex-shrink: 0;
}

/* General form error message */
.form-error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideDown 0.3s ease-out;
}

.form-error::before {
    content: '❌';
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* Success message */
.form-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideDown 0.3s ease-out;
}

.form-success::before {
    content: '✅';
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* Alternative error/success message classes (for compatibility) */
.error-message {
    color: var(--color-error, #dc3545);
    font-size: var(--font-size-sm, 0.875rem);
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.error-message::before {
    content: '⚠';
    font-size: 1rem;
    flex-shrink: 0;
}

.success-message {
    color: var(--color-success, #28a745);
    font-size: var(--font-size-sm, 0.875rem);
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.success-message::before {
    content: '✓';
    font-size: 1rem;
    flex-shrink: 0;
}

/* Loading state for submit button */
input[type="submit"]:disabled {
    background-color: #6c757d !important;
    cursor: not-allowed !important;
    opacity: 0.7;
}

/* Animation for error messages */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive adjustments for forms */
@media (max-width: 768px) {
    .form-group input,
    .form-group textarea {
        padding: 0.625rem;
        font-size: 0.95rem;
    }
    
    .field-error {
        font-size: 0.8rem;
    }
    
    .form-error,
    .form-success {
        padding: 0.625rem;
        font-size: 0.9rem;
    }
}

/* High contrast mode support for forms */
@media (prefers-contrast: high) {
    .form-group input.error,
    .form-group textarea.error {
        border-color: #000;
        background-color: #fff;
    }
    
    .field-error {
        color: #000;
        font-weight: bold;
    }
    
    .form-error {
        background-color: #fff;
        border-color: #000;
        color: #000;
    }
}

/* Reduced motion support for forms */
@media (prefers-reduced-motion: reduce) {
    .field-error,
    .form-error,
    .form-success {
        animation: none;
    }
    
    .form-group input,
    .form-group textarea {
        transition: none;
    }
}

/* Accessible tables */
table {
    border-collapse: collapse;
    width: 100%;
}

th, td {
    border: 1px solid var(--color-border, #dee2e6);
    padding: 8px 12px;
    text-align: left;
}

th {
    background: var(--color-gray-light, #f8f9fa);
    font-weight: var(--font-weight-bold, 700);
}

/* Caption for tables */
caption {
    font-weight: var(--font-weight-bold, 700);
    margin-bottom: 8px;
    text-align: left;
}

/* Accessible buttons */
button[disabled],
input[type="submit"][disabled] {
    opacity: 0.6;
    cursor: not-allowed;
}

button[aria-pressed="true"] {
    background: var(--color-primary-dark, #0056b3);
    color: var(--color-white, #ffffff);
}

/* Accessible navigation */
nav[role="navigation"] {
    position: relative;
}

nav[role="navigation"]::before {
    content: attr(aria-label);
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* Breadcrumb accessibility */
.breadcrumb {
    padding: 8px 0;
    margin-bottom: 16px;
}

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

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

.breadcrumb li:not(:last-child)::after {
    content: '>';
    margin: 0 8px;
    color: var(--color-text-muted, #6c757d);
}

.breadcrumb a {
    color: var(--color-primary, #007bff);
    text-decoration: none;
}

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

.breadcrumb [aria-current="page"] {
    color: var(--color-text-muted, #6c757d);
    font-weight: var(--font-weight-medium, 500);
}

/* Print accessibility */
@media print {
    .skip-link,
    .sr-only {
        display: none !important;
    }
    
    a::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }
    
    a[href^="#"]::after,
    a[href^="javascript:"]::after {
        content: "";
    }
}

/* Mobile accessibility improvements */
@media (max-width: 768px) {
    .skip-link {
        font-size: 1rem;
        padding: 12px 16px;
    }
    
    /* Larger touch targets */
    button,
    a,
    input,
    textarea,
    select {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Better spacing for touch */
    nav a {
        padding: 12px 16px;
    }
}

/* Dark mode accessibility (if implemented) */
@media (prefers-color-scheme: dark) {
    .skip-link {
        background: #ffffff;
        color: #000000;
    }
    
    .skip-link:focus {
        outline-color: #ffffff;
    }
    
    *:focus-visible {
        outline-color: #ffffff;
    }
}

/* ===== NAV DARK MODE (html.dark-mode wird von layout.js gesetzt) ===== */
html.dark-mode #site-nav nav,
html.dark-mode nav.nav,
html.dark-mode nav,
html.dark-mode .nav,
html.dark-mode body nav {
    background: rgb(26, 26, 26) !important;
    background-color: rgb(26, 26, 26) !important;
}
html.dark-mode nav ul li a,
html.dark-mode nav li a,
html.dark-mode nav a {
    color: #ffffff !important;
}
html.dark-mode nav .dropdown {
    background: rgb(26, 26, 26) !important;
}
html.dark-mode nav .dropdown li a {
    color: #ffffff !important;
}
html.dark-mode .mobile-top-bar,
html.dark-mode body.scrolled .mobile-top-bar {
    background: rgb(26, 26, 26) !important;
    background-color: rgb(26, 26, 26) !important;
}
html.dark-mode .mobile-top-bar a {
    color: #ffffff !important;
}

/* Service-Listen & Texte im Dark Mode hell darstellen */
html.dark-mode .service-list li,
html.dark-mode .service-list b,
html.dark-mode .checklist li {
    color: #e8e8e8 !important;
}
html.dark-mode .section-description,
html.dark-mode .section-title,
html.dark-mode .section-subtitle {
    color: #e8e8e8 !important;
}

/* Referenzen/Projekte im Dark Mode – Hintergründe & Texte */
html.dark-mode .projects-section {
    background: rgb(26, 26, 26) !important;
}
html.dark-mode .projects-section h2 {
    color: #e8e8e8 !important;
}
html.dark-mode .project-card {
    background: rgb(45, 45, 45) !important;
}
html.dark-mode .project-gallery {
    background: rgb(45, 45, 45) !important;
}
html.dark-mode .project-content h3,
html.dark-mode .project-category,
html.dark-mode .project-description,
html.dark-mode .project-details,
html.dark-mode .project-details span {
    color: #e8e8e8 !important;
}
html.dark-mode .project-category {
    background: rgba(255, 140, 66, 0.25) !important;
}
html.dark-mode .project-details i {
    color: #FFA366 !important;
}

/* Google Reviews Sektion im Dark Mode hell darstellen */
html.dark-mode .google-reviews-section h2,
html.dark-mode .google-reviews-subtitle,
html.dark-mode .google-reviews-banner-text,
html.dark-mode .google-reviews-banner-text strong,
html.dark-mode .google-reviews-banner-text span,
html.dark-mode .google-reviews-link {
    color: #e8e8e8 !important;
}
html.dark-mode .google-reviews-link {
    background: rgb(45, 45, 45) !important;
    border-color: rgb(77, 77, 77) !important;
}
html.dark-mode .google-reviews-cta-button {
    color: #ffffff !important;
    background: var(--color-primary) !important;
}

/* Kontakt-Seite: Formular & Infos im Dark Mode */
html.dark-mode .sec2-contact,
html.dark-mode .container-contact,
html.dark-mode .left-container-contact,
html.dark-mode .right-container-contact {
    background: transparent !important;
    color: #e8e8e8 !important;
}
html.dark-mode .left-container-contact h4,
html.dark-mode .text-container-contact,
html.dark-mode .form-group label {
    color: #e8e8e8 !important;
}
html.dark-mode .form-group input,
html.dark-mode .form-group textarea {
    background: rgb(45, 45, 45) !important;
    color: #e8e8e8 !important;
    border-color: rgb(77, 77, 77) !important;
}
html.dark-mode .form-group input::placeholder,
html.dark-mode .form-group textarea::placeholder {
    color: rgba(232, 232, 232, 0.6) !important;
}
html.dark-mode .upper-container-contact,
html.dark-mode .lower-container-contact,
html.dark-mode .upper-container-contact b,
html.dark-mode .contact-font-size {
    color: #e8e8e8 !important;
}
html.dark-mode .lower-container-contact a {
    color: #ffffff !important;
}
/* Nur Breadcrumb (space-between-section): heller Hintergrund & schwarze Schrift im Dark Mode */
html.dark-mode .space-between-section {
    background: linear-gradient(135deg, #f7fafc 0%, #ffffff 100%) !important;
    color: #1a1a1a !important;
}
html.dark-mode .space-between-section .klickbarer-link,
html.dark-mode .space-between-section .gold-bold-text,
html.dark-mode .space-between-section .gray-text {
    color: #1a1a1a !important;
}
html.dark-mode .modal .modal-content {
    background: rgb(45, 45, 45) !important;
    color: #e8e8e8 !important;
}
html.dark-mode .modal h2,
html.dark-mode .modal p {
    color: #e8e8e8 !important;
}

/* Impressum-Seite im Dark Mode */
html.dark-mode .container-Impressum,
html.dark-mode .container-Impressum-index,
html.dark-mode .font-title-Impressum,
html.dark-mode .font-text-Impressum,
html.dark-mode .space-impressum {
    color: #e8e8e8 !important;
}

/* Datenschutz-Seite im Dark Mode */
html.dark-mode .container-datenschutz,
html.dark-mode .container-datenschutz-index,
html.dark-mode .font-title-datenschutz,
html.dark-mode .font-text-datenschutz,
html.dark-mode .font-under-title-datenschutz,
html.dark-mode .font-under-under-title-datenschutz,
html.dark-mode .space-datenschutz {
    color: #e8e8e8 !important;
}
html.dark-mode .font-title-datenschutz .gray-text {
    color: rgba(232, 232, 232, 0.8) !important;
}

/* AGB-Seite im Dark Mode */
html.dark-mode .agb-container {
    background: rgb(45, 45, 45) !important;
    border-color: rgb(77, 77, 77) !important;
}
html.dark-mode .agb-content h1,
html.dark-mode .agb-section h2,
html.dark-mode .agb-section p,
html.dark-mode .agb-section strong,
html.dark-mode .agb-footer p,
html.dark-mode .agb-footer strong {
    color: #e8e8e8 !important;
}
html.dark-mode .agb-section {
    background: rgb(26, 26, 26) !important;
    border-color: var(--color-primary) !important;
}
html.dark-mode .agb-footer {
    background: rgb(26, 26, 26) !important;
    border-color: var(--color-primary) !important;
}
html.dark-mode .agb-section a,
html.dark-mode .agb-footer a {
    color: #FFA366 !important;
}