/* ============================================
   KIB Accessibility Toolbar Styles
   ============================================ */

/* Floating Accessibility Button - Centered at bottom */
.kib-accessibility-toggle {
    position: fixed;
    top: 50%;
    bottom: auto;
    left: 20px;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    z-index: 9998;
    transition: all 0.3s ease;
}

.kib-accessibility-toggle:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.4);
}

.kib-accessibility-toggle i {
    font-size: 24px;
    color: #fff;
}

/* Accessibility Toolbar Panel - Centered and scrollable */
.kib-accessibility-toolbar {
    position: fixed;
    top: 50%;
    bottom: auto;
    left: 90px;
    transform: translateY(-50%);
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.2);
    padding: 20px;
    width: 90%;
    max-width: 500px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    z-index: 9999;
    display: none;
    opacity: 0;
    transition: all 0.3s ease;
}

.kib-accessibility-toolbar.active {
    display: block;
    opacity: 1;
}

.kib-accessibility-toolbar h3 {
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: 600;
    color: #1e293b;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
}

/* Toolbar Button Groups */
.kib-toolbar-group {
    margin-bottom: 15px;
}

.kib-toolbar-group:last-child {
    margin-bottom: 0;
}

.kib-toolbar-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #475569;
    margin-bottom: 8px;
}

.kib-toolbar-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.kib-toolbar-btn {
    flex: 1;
    padding: 10px 12px;
    border: 2px solid #e2e8f0;
    background: #f8fafc;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: #334155;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    min-width: 50px;
}

.kib-toolbar-btn:hover {
    border-color: #cbd5e1;
    background: #e2e8f0;
}

.kib-toolbar-btn.active {
    border-color: #1e293b;
    background: #1e293b;
    color: #ffffff;
}

.kib-toolbar-btn-full {
    flex: 1 1 100%;
}

.kib-toolbar-btn-reset {
    background: #ef4444;
    border-color: #ef4444;
    color: #ffffff;
}

.kib-toolbar-btn-reset:hover {
    background: #dc2626;
    border-color: #dc2626;
}

/* Font Size Classes - Using CSS Custom Properties for proportional scaling */
:root {
    --kib-font-scale: 1;
}

body.kib-font-small {
    --kib-font-scale: 0.875; /* 14px base */
}

body.kib-font-medium {
    --kib-font-scale: 1; /* 16px base - default */
}

body.kib-font-large {
    --kib-font-scale: 1.125; /* 18px base */
}

body.kib-font-xlarge {
    --kib-font-scale: 1.25; /* 20px base */
}

/* Apply scaling to text content areas only */
body.kib-font-small p,
body.kib-font-small li,
body.kib-font-small span,
body.kib-font-small a,
body.kib-font-small div,
body.kib-font-large p,
body.kib-font-large li,
body.kib-font-large span,
body.kib-font-large a,
body.kib-font-large div,
body.kib-font-xlarge p,
body.kib-font-xlarge li,
body.kib-font-xlarge span,
body.kib-font-xlarge a,
body.kib-font-xlarge div {
    font-size: calc(1em * var(--kib-font-scale));
}

/* High Contrast Mode */
body.kib-high-contrast,
body.kib-high-contrast * {
    background-color: #000000 !important;
    color: #ffff00 !important;
    border-color: #ffff00 !important;
}

body.kib-high-contrast a {
    color: #00ffff !important;
    text-decoration: underline !important;
}

body.kib-high-contrast img {
    border: 2px solid #ffff00 !important;
}

body.kib-high-contrast button,
body.kib-high-contrast .btn {
    background-color: #ffff00 !important;
    color: #000000 !important;
    border: 2px solid #ffff00 !important;
}

/* Grayscale Mode */
body.kib-grayscale {
    filter: grayscale(100%);
}

body.kib-grayscale img {
    filter: grayscale(100%);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .kib-accessibility-toggle {
        top: auto;
        bottom: 20px;
        left: auto;
        right: 20px;
        transform: none;
        width: 50px;
        height: 50px;
    }

    .kib-accessibility-toggle i {
        font-size: 20px;
    }

    .kib-accessibility-toolbar {
        position: fixed;
        top: auto;
        bottom: 80px;
        left: auto;
        right: 20px;
        transform: none;
        min-width: 260px;
    }
}

/* ============================================
   ENHANCED ACCESSIBILITY FEATURES
   ============================================ */

/* Import OpenDyslexic Font - Using correct CDN */
@import url("https://fonts.cdnfonts.com/css/opendyslexic");

/* Readable Font (OpenDyslexic) */
body.kib-readable-font,
body.kib-readable-font * {
    font-family: "OpenDyslexic", "Comic Sans MS", sans-serif !important;
}

/* Mark Titles - Highlight Headings (only in main content areas) */
body.kib-mark-titles main h1,
body.kib-mark-titles main h2,
body.kib-mark-titles main h3,
body.kib-mark-titles main h4,
body.kib-mark-titles main h5,
body.kib-mark-titles main h6,
body.kib-mark-titles article h1,
body.kib-mark-titles article h2,
body.kib-mark-titles article h3,
body.kib-mark-titles article h4,
body.kib-mark-titles article h5,
body.kib-mark-titles article h6,
body.kib-mark-titles section h1,
body.kib-mark-titles section h2,
body.kib-mark-titles section h3,
body.kib-mark-titles section h4,
body.kib-mark-titles section h5,
body.kib-mark-titles section h6 {
    background: #fef08a !important;
    padding: 8px 12px !important;
    border-left: 4px solid #eab308 !important;
    margin-bottom: 16px !important;
}

/* Highlight Links and Buttons (only in main content, not navigation) */
body.kib-highlight-links main a:not(.btn):not(.kib-btn),
body.kib-highlight-links article a:not(.btn):not(.kib-btn),
body.kib-highlight-links section a:not(.btn):not(.kib-btn) {
    background: #bfdbfe !important;
    padding: 2px 6px !important;
    border: 2px solid #3b82f6 !important;
    border-radius: 4px !important;
    text-decoration: underline !important;
    font-weight: 600 !important;
}

body.kib-highlight-links button:not(.kib-toolbar-btn),
body.kib-highlight-links .btn:not(.kib-toolbar-btn),
body.kib-highlight-links [role="button"]:not(.kib-toolbar-btn) {
    outline: 3px solid #f59e0b !important;
    outline-offset: 2px !important;
    box-shadow: 0 0 0 5px rgba(245, 158, 11, 0.2) !important;
}

/* Page Zoom Levels - Using zoom property for simplicity */
body.kib-zoom-80 {
    zoom: 0.8;
}

body.kib-zoom-90 {
    zoom: 0.9;
}

body.kib-zoom-100 {
    zoom: 1;
}

body.kib-zoom-110 {
    zoom: 1.1;
}

body.kib-zoom-120 {
    zoom: 1.2;
}

/* Filter System - Using data attributes for better compatibility */
/* Default filters */
body.kib-grayscale:not(.kib-invert) {
    filter: grayscale(100%) !important;
}

body.kib-invert:not(.kib-grayscale) {
    filter: invert(100%) hue-rotate(180deg) !important;
}

body.kib-brightness-low:not(.kib-grayscale):not(.kib-invert) {
    filter: brightness(0.7) !important;
}

body.kib-brightness-high:not(.kib-grayscale):not(.kib-invert) {
    filter: brightness(1.3) !important;
}

/* Combined: Grayscale + Brightness */
body.kib-grayscale.kib-brightness-low:not(.kib-invert) {
    filter: grayscale(100%) brightness(0.7) !important;
}

body.kib-grayscale.kib-brightness-high:not(.kib-invert) {
    filter: grayscale(100%) brightness(1.3) !important;
}

/* Combined: Invert + Brightness */
body.kib-invert.kib-brightness-low:not(.kib-grayscale) {
    filter: invert(100%) hue-rotate(180deg) brightness(0.7) !important;
}

body.kib-invert.kib-brightness-high:not(.kib-grayscale) {
    filter: invert(100%) hue-rotate(180deg) brightness(1.3) !important;
}

/* Combined: Grayscale + Invert */
body.kib-grayscale.kib-invert:not(.kib-brightness-low):not(
        .kib-brightness-high
    ) {
    filter: grayscale(100%) invert(100%) hue-rotate(180deg) !important;
}

/* Triple combination: Grayscale + Invert + Brightness Low */
body.kib-grayscale.kib-invert.kib-brightness-low {
    filter: grayscale(100%) invert(100%) hue-rotate(180deg) brightness(0.7) !important;
}

/* Triple combination: Grayscale + Invert + Brightness High */
body.kib-grayscale.kib-invert.kib-brightness-high {
    filter: grayscale(100%) invert(100%) hue-rotate(180deg) brightness(1.3) !important;
}

/* Invert images back when body is inverted */
body.kib-invert img,
body.kib-invert video {
    filter: invert(100%) hue-rotate(180deg) !important;
}

/* Keyboard Focus Enhancement */
.kib-accessibility-toggle:focus,
.kib-toolbar-btn:focus {
    outline: 3px solid #3b82f6;
    outline-offset: 2px;
}

/* Toolbar Scroll for Smaller Screens */
.kib-accessibility-toolbar {
    max-height: 80vh;
    overflow-y: auto;
}

.kib-accessibility-toolbar::-webkit-scrollbar {
    width: 6px;
}

.kib-accessibility-toolbar::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

.kib-accessibility-toolbar::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .kib-accessibility-toggle {
        width: 50px;
        height: 50px;
    }

    .kib-accessibility-toggle:hover {
        transform: scale(1.05);
    }

    .kib-accessibility-toggle i {
        font-size: 20px;
    }

    .kib-accessibility-toolbar {
        width: 95%;
        max-width: 400px;
        bottom: 80px;
        max-height: calc(100vh - 110px);
    }
}