/**
 * Accessibility Features
 */

/* High Contrast Mode */
body.high-contrast {
    --color-bg-primary: #000000;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #2a2a2a;
    --color-text-primary: #ffffff;
    --color-text-secondary: #ffffff;
    --color-accent-blue: #00aaff;
    --color-border: #ffffff;
}

/* Reading Mode */
body.reading-mode {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-bg-primary);
}

body.reading-mode .main-header,
body.reading-mode .main-footer,
body.reading-mode .hero-section,
body.reading-mode .contact-cta-section {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Font Size Adjustments */
body.font-small {
    font-size: 14px;
}

body.font-medium {
    font-size: 16px;
}

body.font-large {
    font-size: 18px;
}

body.font-xlarge {
    font-size: 20px;
}

/* Accessibility Toggle Button */
.accessibility-toggle {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 10001;
    width: 48px;
    height: 48px;
    background: var(--color-accent-blue);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(79, 140, 255, 0.4);
    transition: all var(--transition);
}

.accessibility-toggle:hover,
.accessibility-toggle:focus {
    background: var(--color-accent-blue-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(79, 140, 255, 0.5);
    outline: none;
}

.accessibility-toggle:active {
    transform: translateY(0);
}

.accessibility-toggle[aria-expanded="true"] {
    background: var(--color-accent-blue-dark);
}

.accessibility-toggle svg {
    width: 24px;
    height: 24px;
}

/* Accessibility Toolbar */
.accessibility-toolbar {
    position: fixed;
    top: 140px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--color-bg-secondary);
    padding: 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    min-width: 60px;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition), transform var(--transition);
    pointer-events: none;
}

.accessibility-toolbar.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.accessibility-toolbar.collapsed {
    width: 50px;
    padding: 8px;
}

.accessibility-toolbar.collapsed button {
    width: 100%;
    padding: 8px;
    font-size: 14px;
}

.accessibility-toolbar button {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all var(--transition);
    min-width: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
}

.accessibility-toolbar button:hover,
.accessibility-toolbar button:focus {
    background: var(--color-accent-blue);
    color: white;
    border-color: var(--color-accent-blue);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(79, 140, 255, 0.3);
    outline: none;
}

.accessibility-toolbar button:active {
    transform: translateY(0);
}

.accessibility-toolbar button.active {
    background: var(--color-accent-blue);
    color: white;
    border-color: var(--color-accent-blue);
}

@media (max-width: 768px) {
    .accessibility-toggle {
        top: 70px;
        right: 10px;
        width: 44px;
        height: 44px;
    }
    
    .accessibility-toggle svg {
        width: 20px;
        height: 20px;
    }
    
    .accessibility-toolbar {
        top: 130px;
        right: 10px;
        padding: 8px;
        gap: 6px;
        min-width: 50px;
    }
    
    .accessibility-toolbar button {
        padding: 8px 10px;
        font-size: 14px;
        min-width: 40px;
    }
}

/* Focus Styles */
*:focus {
    outline: 2px solid var(--color-accent-blue);
    outline-offset: 2px;
}

button:focus,
a:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--color-accent-blue);
    outline-offset: 2px;
}

/* Screen Reader Only */
.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;
}

/* Reduced Motion */
@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;
    }
}

/* Print Styles */
@media print {
    .main-header,
    .main-footer,
    .accessibility-toolbar,
    .cookie-consent-banner {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}