/**
 * MAD Accessibility Styles
 *
 * 1. Panel font
 * 2. Toolbar: tokens, floating toggle, positions
 * 3. Panel: header, sections, rows, switches, stepper, segmented control, footer
 * 4. Accessibility features applied to the page
 * 5. Custom triggers and modal presentation
 * 6. Small screens, reduced motion, forced colours
 *
 * Panel rules are scoped to #mad-accessibility-toolbar so theme and page
 * builder styles for h2, button etc. cannot leak in.
 */

/* 1. Panel font: Atkinson Hyperlegible Next (SIL OFL 1.1, self-hosted). It is
      only downloaded once the panel, or the readable font option, renders text. */
@font-face {
    font-family: 'Atkinson Hyperlegible Next';
    font-style: normal;
    font-weight: 200 800;
    font-display: swap;
    src: url('../fonts/AtkinsonHyperlegibleNext/AtkinsonHyperlegibleNext-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
    font-family: 'Atkinson Hyperlegible Next';
    font-style: normal;
    font-weight: 200 800;
    font-display: swap;
    src: url('../fonts/AtkinsonHyperlegibleNext/AtkinsonHyperlegibleNext-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* 2. Toolbar */
#mad-accessibility-toolbar {
    /* Brand colour (set in the settings) is only used to show "on". */
    --mad-a11y-accent: var(--mad-a11y-primary, #2271b1);
    --mad-a11y-accent-hover: var(--mad-a11y-secondary, #135e96);
    --mad-a11y-on-accent: var(--mad-a11y-on-primary, #ffffff);

    --mad-a11y-font: 'Atkinson Hyperlegible Next', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --mad-a11y-surface: #ffffff;
    --mad-a11y-subtle: #f3f4f6;
    --mad-a11y-text: #16191d;
    --mad-a11y-muted: #575e68;
    --mad-a11y-divider: #e3e5e8;
    --mad-a11y-control: #868d97;
    --mad-a11y-radius: 14px;
    --mad-a11y-radius-sm: 8px;
    --mad-a11y-duration: 120ms;

    position: fixed !important;
    z-index: 99999 !important;
    isolation: isolate;
    box-sizing: border-box;
}

#mad-accessibility-toolbar *,
#mad-accessibility-toolbar *::before,
#mad-accessibility-toolbar *::after {
    box-sizing: border-box;
}

/* Neutralise inherited theme styles on the panel's own elements */
#mad-accessibility-toolbar :where(h2, h3, p, button, output, span, div, section, svg) {
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
    box-shadow: none;
    text-shadow: none;
    font: inherit;
    color: inherit;
    letter-spacing: normal;
    text-transform: none;
    text-decoration: none;
    line-height: inherit;
    min-width: 0;
    min-height: 0;
    max-width: none;
    width: auto;
    height: auto;
    float: none;
}

.mad-accessibility-top-left { top: 20px; left: 20px; }
.mad-accessibility-top-right { top: 20px; right: 20px; }
.mad-accessibility-bottom-left { bottom: 20px; left: 20px; }
.mad-accessibility-bottom-right { bottom: 20px; right: 20px; }
/* Centred without transform: a transformed ancestor would trap the fixed-position panel */
.mad-accessibility-left-center { top: calc(50% - 26px); left: 20px; }
.mad-accessibility-right-center { top: calc(50% - 26px); right: 20px; }

#mad-accessibility-toolbar .mad-accessibility-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--mad-a11y-accent);
    color: var(--mad-a11y-on-accent);
    cursor: pointer;
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.2), 0 4px 12px rgba(16, 24, 40, 0.16);
    transition: background-color var(--mad-a11y-duration) linear;
}

#mad-accessibility-toolbar .mad-accessibility-toggle:hover {
    background: var(--mad-a11y-accent-hover);
}

#mad-accessibility-toolbar .mad-accessibility-toggle:focus-visible {
    outline: 3px solid var(--mad-a11y-accent);
    outline-offset: 3px;
}

#mad-accessibility-toolbar .mad-accessibility-icon {
    display: block;
    width: 30px;
    height: 30px;
}

#mad-accessibility-toolbar .mad-accessibility-icon svg {
    display: block;
    width: 100%;
    height: 100%;
}

/* 3. Panel */
#mad-accessibility-toolbar .mad-accessibility-tools {
    display: none;
    position: absolute;
    width: 360px;
    max-width: calc(100vw - 40px);
    max-height: min(680px, calc(100vh - 104px));
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--mad-a11y-surface);
    color: var(--mad-a11y-text);
    border: 1px solid var(--mad-a11y-divider);
    border-radius: var(--mad-a11y-radius);
    box-shadow: 0 12px 32px rgba(16, 24, 40, 0.14), 0 2px 6px rgba(16, 24, 40, 0.06);
    font-family: var(--mad-a11y-font);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.35;
    text-align: left;
}

#mad-accessibility-toolbar .mad-accessibility-tools.active {
    display: block;
    animation: mad-a11y-fade var(--mad-a11y-duration) linear;
}

@keyframes mad-a11y-fade {
    from { opacity: 0; }
}

.mad-accessibility-bottom-left .mad-accessibility-tools,
.mad-accessibility-bottom-right .mad-accessibility-tools { bottom: 64px; }
.mad-accessibility-top-left .mad-accessibility-tools,
.mad-accessibility-top-right .mad-accessibility-tools { top: 64px; }
.mad-accessibility-bottom-left .mad-accessibility-tools,
.mad-accessibility-top-left .mad-accessibility-tools { left: 0; }
.mad-accessibility-bottom-right .mad-accessibility-tools,
.mad-accessibility-top-right .mad-accessibility-tools { right: 0; }
.mad-accessibility-left-center .mad-accessibility-tools { left: 64px; top: 50%; transform: translateY(-50%); }
.mad-accessibility-right-center .mad-accessibility-tools { right: 64px; top: 50%; transform: translateY(-50%); }

/* Focus ring for everything interactive inside the panel */
#mad-accessibility-toolbar .mad-accessibility-tools :focus-visible {
    outline: 2px solid var(--mad-a11y-accent);
    outline-offset: 2px;
}

/* Header */
#mad-accessibility-toolbar .mad-a11y-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 12px 12px 20px;
    border-bottom: 1px solid var(--mad-a11y-divider);
}

#mad-accessibility-toolbar .mad-a11y-title {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.25;
}

/* Programmatic focus target on open; not an interactive control */
#mad-accessibility-toolbar .mad-a11y-title:focus {
    outline: none;
}

#mad-accessibility-toolbar .mad-a11y-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: none;
    width: 40px;
    height: 40px;
    border-radius: var(--mad-a11y-radius-sm);
    color: var(--mad-a11y-muted);
    cursor: pointer;
    transition: background-color var(--mad-a11y-duration) linear, color var(--mad-a11y-duration) linear;
}

#mad-accessibility-toolbar .mad-a11y-icon-btn:hover {
    background: var(--mad-a11y-subtle);
    color: var(--mad-a11y-text);
}

#mad-accessibility-toolbar .mad-a11y-icon-btn svg {
    width: 20px;
    height: 20px;
}

/* Sections */
#mad-accessibility-toolbar .mad-a11y-section {
    display: block;
    padding: 4px 0 8px;
}

#mad-accessibility-toolbar .mad-a11y-section + .mad-a11y-section {
    border-top: 1px solid var(--mad-a11y-divider);
}

#mad-accessibility-toolbar .mad-a11y-section__title {
    padding: 14px 20px 6px;
    font-size: 14px;
    font-weight: 700;
    color: var(--mad-a11y-muted);
}

/* Rows */
#mad-accessibility-toolbar .mad-a11y-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    min-height: 52px;
    padding: 8px 20px;
    font-size: 16px;
    text-align: left;
    color: var(--mad-a11y-text);
}

#mad-accessibility-toolbar .mad-a11y-row + .mad-a11y-row {
    border-top: 1px solid var(--mad-a11y-divider);
}

#mad-accessibility-toolbar .mad-a11y-row--stacked {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 12px 20px 14px;
}

#mad-accessibility-toolbar button.mad-a11y-row {
    cursor: pointer;
    transition: background-color var(--mad-a11y-duration) linear;
}

#mad-accessibility-toolbar button.mad-a11y-row:hover {
    background: var(--mad-a11y-subtle);
}

/* Full-width rows sit flush with the panel edge, so their ring goes inside */
#mad-accessibility-toolbar button.mad-a11y-row:focus-visible {
    outline-offset: -3px;
}

/* Switch: state shown by thumb position and a check mark, not colour alone */
#mad-accessibility-toolbar .mad-a11y-switch__track {
    position: relative;
    display: block;
    flex: none;
    width: 44px;
    height: 26px;
    border: 2px solid var(--mad-a11y-control);
    border-radius: 13px;
    background: var(--mad-a11y-surface);
    transition: background-color var(--mad-a11y-duration) linear, border-color var(--mad-a11y-duration) linear;
}

#mad-accessibility-toolbar .mad-a11y-switch__thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--mad-a11y-control);
    color: var(--mad-a11y-accent);
    transition: transform var(--mad-a11y-duration) ease-out, background-color var(--mad-a11y-duration) linear;
}

#mad-accessibility-toolbar .mad-a11y-switch__thumb svg {
    width: 12px;
    height: 12px;
    opacity: 0;
}

#mad-accessibility-toolbar .mad-a11y-switch[aria-checked="true"] .mad-a11y-switch__track {
    background: var(--mad-a11y-accent);
    border-color: var(--mad-a11y-accent);
}

#mad-accessibility-toolbar .mad-a11y-switch[aria-checked="true"] .mad-a11y-switch__thumb {
    transform: translateX(18px);
    background: var(--mad-a11y-on-accent);
}

#mad-accessibility-toolbar .mad-a11y-switch[aria-checked="true"] .mad-a11y-switch__thumb svg {
    opacity: 1;
}

/* Stepper (text size) */
#mad-accessibility-toolbar .mad-a11y-stepper {
    display: inline-flex;
    align-items: center;
    flex: none;
    border: 1px solid var(--mad-a11y-divider);
    border-radius: var(--mad-a11y-radius-sm);
}

#mad-accessibility-toolbar .mad-a11y-stepper__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: calc(var(--mad-a11y-radius-sm) - 1px);
    color: var(--mad-a11y-text);
    cursor: pointer;
    transition: background-color var(--mad-a11y-duration) linear;
}

#mad-accessibility-toolbar .mad-a11y-stepper__btn:hover {
    background: var(--mad-a11y-subtle);
}

#mad-accessibility-toolbar .mad-a11y-stepper__btn[aria-disabled="true"] {
    color: var(--mad-a11y-control);
    background: none;
    cursor: default;
}

#mad-accessibility-toolbar .mad-a11y-stepper__btn svg {
    width: 18px;
    height: 18px;
}

#mad-accessibility-toolbar .mad-a11y-stepper__value {
    display: block;
    min-width: 60px;
    text-align: center;
    font-weight: 600;
}

/* Segmented control (contrast) */
#mad-accessibility-toolbar .mad-a11y-segmented {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
    padding: 4px;
    border-radius: 10px;
    background: var(--mad-a11y-subtle);
}

#mad-accessibility-toolbar .mad-a11y-segmented button {
    min-height: 40px;
    padding: 6px 8px;
    border-radius: 7px;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    color: var(--mad-a11y-text);
    cursor: pointer;
    transition: background-color var(--mad-a11y-duration) linear, color var(--mad-a11y-duration) linear;
}

#mad-accessibility-toolbar .mad-a11y-segmented button:hover {
    background: var(--mad-a11y-divider);
}

#mad-accessibility-toolbar .mad-a11y-segmented button[aria-pressed="true"] {
    background: var(--mad-a11y-accent);
    color: var(--mad-a11y-on-accent);
}

/* Footer */
#mad-accessibility-toolbar .mad-a11y-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px 10px 20px;
    border-top: 1px solid var(--mad-a11y-divider);
}

#mad-accessibility-toolbar .mad-a11y-footer__count {
    font-size: 14px;
    color: var(--mad-a11y-muted);
}

#mad-accessibility-toolbar .mad-a11y-text-btn {
    min-height: 40px;
    padding: 8px 12px;
    border-radius: var(--mad-a11y-radius-sm);
    font-size: 15px;
    font-weight: 600;
    color: var(--mad-a11y-text);
    cursor: pointer;
    transition: background-color var(--mad-a11y-duration) linear;
}

#mad-accessibility-toolbar .mad-a11y-text-btn:hover {
    background: var(--mad-a11y-subtle);
}

#mad-accessibility-toolbar .mad-a11y-text-btn[aria-disabled="true"] {
    color: var(--mad-a11y-control);
    background: none;
    cursor: default;
}

/* Screen Reader Text */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

/* 4. Accessibility Feature Styles */
/*
 * Feature classes sit on the configured root element(s). The toolbar and
 * anything else marked [data-mad-exclude] is left untouched, including the
 * element itself (buttons share class names with nothing here any more).
 *
 * #mad-a11y-boost matches nothing; it lifts these rules to ID-level
 * specificity so page builder !important rules such as Brizy's
 * ".brz .brz-css-xyz { font-family: ... !important }" cannot win the tie.
 */

/* High Contrast */
.mad-accessibility-high-contrast:not(#mad-a11y-boost) {
    color: #000 !important;
    background-color: #fff !important;
}

.mad-accessibility-high-contrast *:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    color: #000 !important;
    background-color: #fff !important;
    border-color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
}

.mad-accessibility-high-contrast a:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    color: #0000EE !important;
    text-decoration: underline !important;
}

.mad-accessibility-high-contrast a:visited:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    color: #551A8B !important;
}

/* Negative Contrast */
.mad-accessibility-negative-contrast:not(#mad-a11y-boost) {
    color: #fff !important;
    background-color: #000 !important;
}

.mad-accessibility-negative-contrast *:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    color: #fff !important;
    background-color: #000 !important;
    border-color: #fff !important;
    box-shadow: none !important;
    text-shadow: none !important;
}

.mad-accessibility-negative-contrast a:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    color: #FFFF00 !important;
    text-decoration: underline !important;
}

.mad-accessibility-negative-contrast a:visited:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    color: #AAE7FF !important;
}

/* Readable Font (icon fonts such as Dashicons or Font Awesome keep their own font, or their glyphs turn into boxes) */
.mad-accessibility-readable-font:not(#mad-a11y-boost),
.mad-accessibility-readable-font *:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost):not([class*="icon"], .fa, [class^="fa-"], [class*=" fa-"]) {
    font-family: var(--mad-accessibility-readable-font, Arial, sans-serif) !important;
}

/* Increased Spacing */
.mad-accessibility-increased-spacing:not(#mad-a11y-boost),
.mad-accessibility-increased-spacing *:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    letter-spacing: 0.12em !important;
    word-spacing: 0.16em !important;
    line-height: 1.5 !important;
}

/* Highlight Links */
.mad-accessibility-highlight-links a:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    text-decoration: underline !important;
    font-weight: bold !important;
    color: #0066cc !important;
}

.mad-accessibility-highlight-links.mad-accessibility-high-contrast a:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    color: #000066 !important;
    border-bottom: 3px solid var(--mad-a11y-secondary, #000066) !important;
}

.mad-accessibility-highlight-links.mad-accessibility-negative-contrast a:not([data-mad-exclude], [data-mad-exclude] *, #mad-a11y-boost) {
    color: #FFFF00 !important;
    border-bottom: 3px solid #FFFF00 !important;
}

/*
 * Grayscale: a viewport overlay desaturates everything painted below it.
 * Filtering body directly would make it the containing block for fixed
 * elements and drag the toolbar out of position. The toolbar stacks above
 * the overlay, so it keeps its colours.
 */
html.mad-accessibility-grayscale::after {
    content: "";
    position: fixed;
    inset: 0;
    -webkit-backdrop-filter: grayscale(100%);
    backdrop-filter: grayscale(100%);
    pointer-events: none;
    z-index: 99998;
}

/* Stop animations: everything jumps to its end state instead of being
   removed, so entrance effects that start at opacity 0 still end visible. */
html.mad-accessibility-no-motion {
    scroll-behavior: auto !important;
}

html.mad-accessibility-no-motion *,
html.mad-accessibility-no-motion *::before,
html.mad-accessibility-no-motion *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
    scroll-behavior: auto !important;
}

/* 5. Custom triggers: hide the floating toggle in trigger mode, and in auto mode once a .mad-a11y-trigger is on the page */
#mad-accessibility-toolbar.mad-accessibility-mode-trigger .mad-accessibility-toggle,
html:has(.mad-a11y-trigger) #mad-accessibility-toolbar.mad-accessibility-mode-auto .mad-accessibility-toggle {
    display: none;
}

.mad-a11y-trigger {
    cursor: pointer;
}

/* Modal presentation, used whenever the floating toggle is hidden */
#mad-accessibility-toolbar.mad-accessibility-modal::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(16, 24, 40, 0.45);
}

#mad-accessibility-toolbar.mad-accessibility-modal .mad-accessibility-tools {
    position: fixed;
    top: 50%;
    left: 50%;
    right: auto;
    bottom: auto;
    transform: translate(-50%, -50%);
    width: min(380px, calc(100vw - 24px));
    max-width: none;
    max-height: calc(100vh - 24px);
}

/* 6. Small screens: the floating panel becomes a bottom sheet */
@media screen and (max-width: 600px) {
    #mad-accessibility-toolbar:not(.mad-accessibility-modal) .mad-accessibility-tools {
        position: fixed;
        top: auto;
        left: 8px;
        right: 8px;
        bottom: 8px;
        transform: none;
        width: auto;
        max-width: none;
        max-height: calc(100vh - 16px);
        max-height: calc(100dvh - 16px);
    }
}

@media (prefers-reduced-motion: reduce) {
    #mad-accessibility-toolbar *,
    #mad-accessibility-toolbar *::before,
    #mad-accessibility-toolbar *::after {
        animation: none !important;
        transition: none !important;
    }
}

/* Windows high contrast / forced colours: keep every state visible with system colours */
@media (forced-colors: active) {
    #mad-accessibility-toolbar .mad-accessibility-toggle {
        border: 2px solid ButtonText;
    }

    #mad-accessibility-toolbar .mad-a11y-switch__track {
        border-color: ButtonText;
    }

    #mad-accessibility-toolbar .mad-a11y-switch__thumb {
        forced-color-adjust: none;
        background: ButtonText;
    }

    #mad-accessibility-toolbar .mad-a11y-switch[aria-checked="true"] .mad-a11y-switch__track {
        forced-color-adjust: none;
        background: Highlight;
        border-color: Highlight;
    }

    #mad-accessibility-toolbar .mad-a11y-switch[aria-checked="true"] .mad-a11y-switch__thumb {
        background: HighlightText;
        color: Highlight;
    }

    #mad-accessibility-toolbar .mad-a11y-segmented {
        border: 1px solid ButtonText;
    }

    #mad-accessibility-toolbar .mad-a11y-segmented button[aria-pressed="true"] {
        forced-color-adjust: none;
        background: Highlight;
        color: HighlightText;
    }

    #mad-accessibility-toolbar .mad-a11y-stepper__btn[aria-disabled="true"],
    #mad-accessibility-toolbar .mad-a11y-text-btn[aria-disabled="true"] {
        color: GrayText;
    }
}