/* ============================================== Reverse Aging - Accessibility Widget & Features Standards: WCAG 2.1 AA | IS 5568 | Section 508 | EN 301 549 All feature classes applied to element ============================================== */ /* === CSS Variables === */ :root { --a11y-primary: #0a6e5c; --a11y-focus: #ff6600; --a11y-focus-kb: #0066ff; --a11y-panel-width: 340px; --a11y-btn-size: 56px; --a11y-z-btn: 10000; --a11y-z-panel: 10001; --a11y-z-overlay: 10002; } /* === Skip to Content Link === */ .a11y-skip-link { position: fixed; top: -100%; left: 50%; transform: translateX(-50%); z-index: 100000; background: var(--a11y-primary); color: #fff; padding: 12px 24px; border-radius: 0 0 8px 8px; font-size: 1rem; font-weight: 600; text-decoration: none; transition: top 0.2s; white-space: nowrap; } .a11y-skip-link:focus { top: 0; outline: 3px solid var(--a11y-focus); } /* === Toggle Button === */ .a11y-toggle-btn { position: fixed; bottom: 20px; left: 20px; z-index: var(--a11y-z-btn); width: var(--a11y-btn-size); height: var(--a11y-btn-size); border-radius: 50%; background: var(--a11y-primary); color: #fff; border: none; cursor: pointer; box-shadow: 0 4px 14px rgba(0,0,0,0.3); display: flex; align-items: center; justify-content: center; transition: transform 0.2s, box-shadow 0.2s; padding: 0; } .a11y-toggle-btn:hover { transform: scale(1.08); box-shadow: 0 6px 20px rgba(0,0,0,0.4); } .a11y-toggle-btn:focus-visible { outline: 3px solid var(--a11y-focus); outline-offset: 3px; } html[dir="ltr"] .a11y-toggle-btn { left: auto; right: 20px; } /* === Panel === */ .a11y-panel { position: fixed; top: 0; left: 0; bottom: 0; width: var(--a11y-panel-width); max-width: 92vw; z-index: var(--a11y-z-panel); background: #fff; box-shadow: 4px 0 24px rgba(0,0,0,0.2); transform: translateX(-100%); transition: transform 0.3s ease; overflow-y: auto; overflow-x: hidden; direction: rtl; font-family: 'Heebo', Arial, sans-serif; } .a11y-panel.open { transform: translateX(0); } html[dir="ltr"] .a11y-panel { left: auto; right: 0; direction: ltr; transform: translateX(100%); box-shadow: -4px 0 24px rgba(0,0,0,0.2); } html[dir="ltr"] .a11y-panel.open { transform: translateX(0); } /* Panel Backdrop */ .a11y-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: calc(var(--a11y-z-panel) - 1); display: none; } .a11y-backdrop.open { display: block; } /* Panel Header */ .a11y-panel-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; background: var(--a11y-primary); color: #fff; position: sticky; top: 0; z-index: 1; } .a11y-panel-header h2 { font-size: 1.2rem; font-weight: 700; margin: 0; } .a11y-panel-close { background: none; border: none; color: #fff; cursor: pointer; width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: background 0.2s; padding: 0; } .a11y-panel-close:hover { background: rgba(255,255,255,0.2); } .a11y-panel-close:focus-visible { outline: 2px solid #fff; outline-offset: 2px; } /* Panel Body */ .a11y-panel-body { padding: 12px 16px 24px; } /* Reset Button */ .a11y-reset-btn { width: 100%; padding: 10px; background: #f0f0f0; border: 1px solid #ddd; border-radius: 8px; cursor: pointer; font-size: 0.9rem; font-weight: 600; color: #c00; display: flex; align-items: center; justify-content: center; gap: 6px; margin-bottom: 16px; transition: background 0.2s; font-family: inherit; } .a11y-reset-btn:hover { background: #ffe0e0; } .a11y-reset-btn:focus-visible { outline: 2px solid var(--a11y-focus); outline-offset: 2px; } .a11y-reset-btn .a11y-icon { font-size: 1.2rem; } /* Section */ .a11y-section { margin-bottom: 16px; } .a11y-section-title { font-size: 0.85rem; font-weight: 700; color: #666; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 8px; padding: 0 4px; } /* Option Button (toggle switch) */ .a11y-option { width: 100%; padding: 10px 12px; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; cursor: pointer; display: flex; align-items: center; gap: 10px; margin-bottom: 6px; transition: background 0.15s, border-color 0.15s; font-family: inherit; font-size: 0.92rem; color: #333; text-align: start; } .a11y-option:hover { background: #eef7f5; border-color: var(--a11y-primary); } .a11y-option:focus-visible { outline: 2px solid var(--a11y-focus); outline-offset: 2px; } .a11y-option[aria-checked="true"] { background: #e0f2ef; border-color: var(--a11y-primary); color: var(--a11y-primary); font-weight: 600; } .a11y-option .a11y-icon { width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; background: #e8e8e8; border-radius: 6px; } .a11y-option[aria-checked="true"] .a11y-icon { background: var(--a11y-primary); color: #fff; } .a11y-option-text { flex: 1; } .a11y-toggle-indicator { width: 36px; height: 20px; background: #ccc; border-radius: 10px; position: relative; flex-shrink: 0; transition: background 0.2s; } .a11y-toggle-indicator::after { content: ''; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform 0.2s; } html[dir="rtl"] .a11y-toggle-indicator::after, .a11y-panel .a11y-toggle-indicator::after { left: auto; right: 2px; } .a11y-option[aria-checked="true"] .a11y-toggle-indicator { background: var(--a11y-primary); } .a11y-option[aria-checked="true"] .a11y-toggle-indicator::after { transform: translateX(-16px); } html[dir="rtl"] .a11y-option[aria-checked="true"] .a11y-toggle-indicator::after, .a11y-panel .a11y-option[aria-checked="true"] .a11y-toggle-indicator::after { transform: translateX(16px); } /* Font Size Control */ .a11y-font-size-control { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; margin-bottom: 6px; } .a11y-control-label { font-size: 0.92rem; color: #333; } .a11y-font-size-buttons { display: flex; align-items: center; gap: 8px; } .a11y-font-size-buttons button { width: 32px; height: 32px; border-radius: 6px; border: 1px solid #ddd; background: #fff; cursor: pointer; font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; transition: background 0.15s; font-family: inherit; color: #333; } .a11y-font-size-buttons button:hover { background: #eef7f5; border-color: var(--a11y-primary); } .a11y-font-size-buttons button:focus-visible { outline: 2px solid var(--a11y-focus); outline-offset: 2px; } .a11y-font-size-value { min-width: 42px; text-align: center; font-weight: 600; font-size: 0.85rem; color: var(--a11y-primary); } /* Statement Link */ .a11y-statement-section { margin-top: 12px; padding-top: 12px; border-top: 1px solid #eee; text-align: center; } .a11y-statement-link { display: inline-block; color: var(--a11y-primary); font-weight: 600; text-decoration: underline; margin-bottom: 8px; font-size: 0.9rem; } .a11y-contact-info { font-size: 0.8rem; color: #888; margin: 0; } .a11y-contact-info a { color: var(--a11y-primary); } /* Live Region (screen reader announcements) */ .a11y-live-region { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; } /* ======================================== FEATURE STYLES All applied via classes on ======================================== */ /* === Font Size Scaling === */ html[data-a11y-fontsize="1"] { font-size: 112.5%; } html[data-a11y-fontsize="2"] { font-size: 125%; } html[data-a11y-fontsize="3"] { font-size: 137.5%; } html[data-a11y-fontsize="4"] { font-size: 150%; } html[data-a11y-fontsize="5"] { font-size: 162.5%; } /* === High Contrast === */ html.a11y-high-contrast { --bg-light: #ffffff; --bg-white: #ffffff; --bg-dark: #000000; --bg-card: #1a1a1a; --bg-card-hover: #222; --text-dark: #000000; --text-primary: #ffffff; --text-secondary: #000000; --text-on-dark: #ffffff; } html.a11y-high-contrast body { background: #fff !important; color: #000 !important; } html.a11y-high-contrast .main-content { background: #fff; } html.a11y-high-contrast a { color: #000080 !important; text-decoration: underline !important; } html.a11y-high-contrast .article-card, html.a11y-high-contrast .card-body { background: #fff !important; border: 2px solid #000 !important; } html.a11y-high-contrast .hero, html.a11y-high-contrast .top-bar { background: #000 !important; } html.a11y-high-contrast .btn, html.a11y-high-contrast button { border: 2px solid #000 !important; } /* === Inverted Colors (Dark Mode) === */ html.a11y-inverted-colors { filter: invert(1) hue-rotate(180deg); } html.a11y-inverted-colors img, html.a11y-inverted-colors video, html.a11y-inverted-colors picture, html.a11y-inverted-colors .logo-img, html.a11y-inverted-colors .article-featured-img, html.a11y-inverted-colors .card-image img, html.a11y-inverted-colors [style*="background-image"], html.a11y-inverted-colors .a11y-toggle-btn, html.a11y-inverted-colors .a11y-panel { filter: invert(1) hue-rotate(180deg); } /* === Grayscale === */ html.a11y-grayscale { filter: grayscale(1); } /* === Underline Links === */ html.a11y-underline-links a:not(.a11y-option):not(.a11y-toggle-btn):not(.a11y-panel-close):not(.a11y-reset-btn) { text-decoration: underline !important; text-underline-offset: 3px; text-decoration-thickness: 2px; } /* === Readable Font === */ html.a11y-readable-font, html.a11y-readable-font * { font-family: Arial, 'Segoe UI', Helvetica, sans-serif !important; letter-spacing: 0.03em; } /* === Text Spacing === */ html.a11y-text-spacing .main-content, html.a11y-text-spacing .main-content * { letter-spacing: 0.12em !important; word-spacing: 0.16em !important; } /* === Line Height === */ html.a11y-line-height .main-content, html.a11y-line-height .main-content p, html.a11y-line-height .main-content li, html.a11y-line-height .main-content span { line-height: 2.2 !important; } /* === Highlight Focus === */ html.a11y-highlight-focus *:focus { outline: 3px solid var(--a11y-focus) !important; outline-offset: 3px !important; box-shadow: 0 0 0 6px rgba(255, 102, 0, 0.25) !important; } /* === Keyboard Navigation === */ html.a11y-keyboard-nav *:focus-visible { outline: 3px dashed var(--a11y-focus-kb) !important; outline-offset: 4px !important; } /* === Hide Images === */ html.a11y-hide-images img:not(.a11y-panel img), html.a11y-hide-images picture, html.a11y-hide-images video, html.a11y-hide-images [role="img"] { opacity: 0.05 !important; } /* === Stop Animations === */ html.a11y-stop-animations *, html.a11y-stop-animations *::before, html.a11y-stop-animations *::after { animation-duration: 0s !important; animation-delay: 0s !important; transition-duration: 0s !important; transition-delay: 0s !important; } html.a11y-stop-animations { scroll-behavior: auto !important; } /* === Big Cursor === */ html.a11y-big-cursor, html.a11y-big-cursor * { cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='48' viewBox='0 0 48 48'%3E%3Cpath d='M8 4l28 20-12 2 8 16-6 3-8-16-10 9z' fill='%23000' stroke='%23fff' stroke-width='2'/%3E%3C/svg%3E") 4 2, auto !important; } /* === Reading Guide === */ .a11y-reading-guide-bar { display: none; position: fixed; left: 0; right: 0; height: 14px; background: rgba(255, 255, 0, 0.3); border-top: 2px solid rgba(255, 180, 0, 0.6); border-bottom: 2px solid rgba(255, 180, 0, 0.6); pointer-events: none; z-index: var(--a11y-z-overlay); transition: top 0.05s linear; } html.a11y-reading-guide .a11y-reading-guide-bar { display: block; } /* === Highlight Headings === */ html.a11y-highlight-headings .main-content h1, html.a11y-highlight-headings .main-content h2, html.a11y-highlight-headings .main-content h3, html.a11y-highlight-headings .main-content h4, html.a11y-highlight-headings .main-content h5, html.a11y-highlight-headings .main-content h6 { outline: 2px solid #00bcd4 !important; outline-offset: 4px; background: rgba(0, 188, 212, 0.06); padding: 4px 8px; } /* === Highlight Links === */ html.a11y-highlight-links .main-content a:not(.a11y-option) { background-color: rgba(255, 255, 0, 0.3) !important; outline: 1px solid #ccaa00 !important; padding: 2px 4px; border-radius: 2px; } /* === Page Structure Overlay === */ .a11y-structure-overlay { display: none; position: fixed; top: 0; left: 0; width: 320px; max-width: 90vw; max-height: 100vh; overflow-y: auto; background: rgba(0, 0, 0, 0.92); color: #fff; padding: 20px; z-index: var(--a11y-z-overlay); font-size: 14px; direction: rtl; } html[dir="ltr"] .a11y-structure-overlay { left: auto; right: 0; direction: ltr; } html.a11y-page-structure .a11y-structure-overlay { display: block; } .a11y-structure-overlay h3 { font-size: 1rem; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid #555; color: #00bcd4; } .a11y-structure-overlay ul { list-style: none; padding: 0; margin: 0; } .a11y-structure-overlay li { margin-bottom: 4px; } .a11y-structure-overlay a { color: #ddd; text-decoration: none; display: block; padding: 4px 6px; border-radius: 4px; transition: background 0.15s; } .a11y-structure-overlay a:hover, .a11y-structure-overlay a:focus { background: rgba(255,255,255,0.1); color: #fff; } .a11y-structure-overlay .a11y-h1 { padding-right: 0; font-weight: 700; } .a11y-structure-overlay .a11y-h2 { padding-right: 16px; } .a11y-structure-overlay .a11y-h3 { padding-right: 32px; font-size: 0.9em; } .a11y-structure-overlay .a11y-h4 { padding-right: 48px; font-size: 0.85em; } .a11y-structure-overlay .a11y-h5 { padding-right: 64px; font-size: 0.8em; } .a11y-structure-overlay .a11y-h6 { padding-right: 80px; font-size: 0.8em; } html[dir="ltr"] .a11y-structure-overlay .a11y-h1 { padding-right: 0; padding-left: 0; } html[dir="ltr"] .a11y-structure-overlay .a11y-h2 { padding-right: 0; padding-left: 16px; } html[dir="ltr"] .a11y-structure-overlay .a11y-h3 { padding-right: 0; padding-left: 32px; } html[dir="ltr"] .a11y-structure-overlay .a11y-h4 { padding-right: 0; padding-left: 48px; } html[dir="ltr"] .a11y-structure-overlay .a11y-h5 { padding-right: 0; padding-left: 64px; } html[dir="ltr"] .a11y-structure-overlay .a11y-h6 { padding-right: 0; padding-left: 80px; } .a11y-structure-close { position: absolute; top: 10px; left: 10px; background: none; border: none; color: #aaa; font-size: 1.2rem; cursor: pointer; padding: 4px; line-height: 1; } html[dir="ltr"] .a11y-structure-close { left: auto; right: 10px; } .a11y-structure-close:hover { color: #fff; } /* === Responsive === */ @media (max-width: 768px) { .a11y-toggle-btn { width: 48px; height: 48px; bottom: 14px; left: 14px; } html[dir="ltr"] .a11y-toggle-btn { left: auto; right: 14px; } .a11y-panel { width: 100%; max-width: 100vw; } } /* === Print === */ @media print { .a11y-toggle-btn, .a11y-panel, .a11y-backdrop, .a11y-skip-link, .a11y-reading-guide-bar, .a11y-structure-overlay { display: none !important; } }