/**
 * BarrierFreeWeb Accessibility Widget - Styles
 * Main CSS file for widget appearance and functionality
 * Author: Poorani Ramakrishnan
 * License: MIT
 */

/* Accessibility Widget Container */
#bfw-widget-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999999;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    pointer-events: auto;
    user-select: none;
}

.bfw-widget {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    pointer-events: auto;
}

/* Floating Button */
.bfw-widget-button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #1a1a1a;
    border: 2px solid white;
    color: white;
    font-size: 24px;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    padding: 0;
    pointer-events: auto;
    -webkit-user-select: none;
    user-select: none;
}

.bfw-widget-button.bfw-dragging {
    cursor: grabbing;
}

.bfw-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.bfw-icon-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
}

.bfw-widget-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.bfw-widget-button:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.bfw-widget-button:active {
    transform: scale(0.95);
}

/* Widget Panel */
.bfw-widget-panel {
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    min-width: 280px;
    animation: slideUp 0.3s ease;
    position: fixed;
    pointer-events: auto;
    display: block;
    z-index: 999998;
}

.bfw-widget-panel[hidden] {
    display: none !important;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Panel Header */
.bfw-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.bfw-panel-header h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.bfw-close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background-color 0.2s ease;
    pointer-events: auto;
}

.bfw-close-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.bfw-close-btn:focus {
    outline: 2px solid white;
    outline-offset: 2px;
}

/* Panel Content */
.bfw-panel-content {
    padding: 20px;
    pointer-events: auto;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    overflow-x: hidden;
}

.bfw-panel-content::-webkit-scrollbar {
    width: 6px;
}

.bfw-panel-content::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.bfw-panel-content::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 3px;
}

.bfw-panel-content::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Collapsible Group Styling */
.bfw-group {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: 1px solid #f0f0f0;
}

.bfw-group:last-child {
    border-bottom: none;
}

.bfw-group-toggle {
    width: 100%;
    padding: 12px 8px;
    background: none;
    border: none;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: #667eea;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.2s ease;
    pointer-events: auto;
}

.bfw-group:last-child .bfw-group-toggle {
    border-bottom: none;
}

.bfw-group-toggle:hover {
    background: #f5f5f5;
}

.bfw-group-toggle:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.bfw-group-title {
    flex: 1;
    text-align: left;
}

.bfw-group-indicator {
    font-size: 18px;
    font-weight: 300;
    min-width: 20px;
    text-align: right;
    transition: transform 0.2s ease;
}

.bfw-group-collapsed .bfw-group-indicator {
    transform: rotate(0deg);
}

.bfw-group:not(.bfw-group-collapsed) .bfw-group-indicator {
    transform: rotate(-180deg);
}

.bfw-group-content {
    padding: 12px 0;
    display: block;
    animation: slideDown 0.2s ease;
}

.bfw-group-collapsed .bfw-group-content {
    display: none !important;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 1000px;
    }
}

/* Section Styling */
.bfw-section {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #f0f0f0;
}

.bfw-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.bfw-section h3 {
    margin: 0 0 12px 0;
    font-size: 13px;
    font-weight: 600;
    color: #667eea;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Quick Preset Grid */
.bfw-preset-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.bfw-preset-btn {
    padding: 8px 12px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    color: #333;
    cursor: pointer;
    transition: all 0.2s ease;
    pointer-events: auto;
}

.bfw-preset-btn:hover {
    background: #eef3ff;
    border-color: #667eea;
    color: #667eea;
}

.bfw-preset-btn:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.bfw-preset-btn.active {
    background: linear-gradient(135deg, #667eea, #5568d3);
    color: white;
    border-color: #5568d3;
}

.bfw-tip-text {
    font-size: 12px;
    color: #999;
    font-style: italic;
    margin: 8px 0 0 0;
    text-align: center;
}

/* Highlight Buttons Grid */
.bfw-highlight-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.bfw-highlight-btn {
    padding: 8px 12px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    color: #333;
    cursor: pointer;
    transition: all 0.2s ease;
    pointer-events: auto;
}

.bfw-highlight-btn:hover {
    background: #fff176;
    border-color: #f57c00;
    color: #333;
}

.bfw-highlight-btn:focus {
    outline: 2px solid #f57c00;
    outline-offset: 2px;
}

.bfw-highlight-btn:active {
    transform: scale(0.95);
}

/* Control Group */
.bfw-control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
    pointer-events: auto;
}

.bfw-control-group label {
    font-size: 13px;
    font-weight: 500;
    color: #333;
    pointer-events: auto;
}

.bfw-control-group input[type="range"] {
    width: 100% !important;
    height: 6px !important;
    border-radius: 3px !important;
    border: none !important;
    background: #e0e0e0 !important;
    cursor: pointer !important;
    pointer-events: auto !important;
    outline: none !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    padding: 0 !important;
    box-shadow: none !important;
}

.bfw-control-group input[type="color"] {
    width: 100%;
    height: 40px;
    border-radius: 4px;
    border: 1px solid #ddd;
    cursor: pointer;
    pointer-events: auto;
}

.bfw-control-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    background: white;
    color: #333;
    cursor: pointer;
    pointer-events: auto;
}
.bfw-control-group {
    margin-bottom: 18px;
}

.bfw-control-group:last-child {
    margin-bottom: 0;
}

.bfw-control-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}

.bfw-control-group input[type="range"] {
    width: 100% !important;
    height: 6px !important;
    border-radius: 3px !important;
    background: #e0e0e0 !important;
    outline: none !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    cursor: pointer !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
}

.bfw-control-group input[type="range"]::-webkit-slider-runnable-track {
    width: 100% !important;
    height: 6px !important;
    background: #e0e0e0 !important;
    border-radius: 3px !important;
    border: none !important;
    box-shadow: none !important;
}

.bfw-control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none !important;
    appearance: none !important;
    width: 18px !important;
    height: 18px !important;
    border-radius: 50% !important;
    background: #667eea !important;
    cursor: pointer !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
    transition: all 0.2s ease !important;
    border: none !important;
    margin-top: -6px !important;
}

.bfw-control-group input[type="range"]::-webkit-slider-thumb:hover {
    background: #764ba2 !important;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15) !important;
    transform: scale(1.1) !important;
}

.bfw-control-group input[type="range"]::-webkit-slider-thumb:active {
    transform: scale(1.15) !important;
}

.bfw-control-group input[type="range"]::-moz-range-track {
    background: #e0e0e0 !important;
    border-radius: 3px !important;
    border: none !important;
    box-shadow: none !important;
}

.bfw-control-group input[type="range"]::-moz-range-progress {
    background: #667eea !important;
    border-radius: 3px !important;
}

.bfw-control-group input[type="range"]::-moz-range-thumb {
    width: 18px !important;
    height: 18px !important;
    border-radius: 50% !important;
    background: #667eea !important;
    cursor: pointer !important;
    border: none !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
    transition: all 0.2s ease !important;
}

.bfw-control-group input[type="range"]::-moz-range-thumb:hover {
    background: #764ba2 !important;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15) !important;
    transform: scale(1.1) !important;
}

.bfw-control-group input[type="range"]::-moz-range-thumb:active {
    transform: scale(1.15) !important;
}

.bfw-control-group input[type="range"]:focus {
    outline: 2px solid #667eea !important;
    outline-offset: 2px !important;
}

/* Checkbox styling */
.bfw-control-group input[type="checkbox"] {
    margin-right: 8px;
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: #667eea;
}

.bfw-control-group input[type="checkbox"]:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.bfw-help-text {
    display: block;
    font-size: 12px;
    color: #999;
    margin-top: 4px;
}

/* Reset Button */
.bfw-reset-btn {
    width: 100%;
    padding: 10px 16px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    pointer-events: auto;
}

.bfw-reset-btn:hover {
    background: #efefef;
    border-color: #999;
}

.bfw-reset-btn:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.bfw-reset-btn:active {
    transform: scale(0.98);
}

/* Theme Buttons */
.bfw-theme-btn {
    flex: 1;
    padding: 8px 12px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.2s ease;
    pointer-events: auto;
}

.bfw-theme-btn:hover {
    background: #eef3ff;
    border-color: #667eea;
}

.bfw-theme-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: #667eea;
    color: white;
}

.bfw-theme-btn:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Checkbox Label */
.bfw-checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
    color: #333;
    pointer-events: auto;
}

.bfw-checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #667eea;
    pointer-events: auto;
}

.bfw-checkbox-label input[type="checkbox"]:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Contrast Options Grid */
.bfw-contrast-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.bfw-contrast-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 10px 6px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background: #f4f7fa;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    pointer-events: auto;
}

.bfw-contrast-option:hover {
    background: #edf2ff;
    border-color: #667eea;
}

.bfw-contrast-option input[type="radio"] {
    margin: 0;
    cursor: pointer;
    accent-color: #667eea;
    flex-shrink: 0;
    pointer-events: auto;
}

.bfw-contrast-option input[type="radio"]:focus {
    outline: 2px solid #667eea;
}

.bfw-contrast-text {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
    width: 100%;
}

.bfw-contrast-label {
    display: block;
    font-weight: 600;
    color: #22223b;
    font-size: 0.85em;
    line-height: 1.3;
}

.bfw-contrast-help {
    display: block;
    font-size: 0.7rem;
    color: #666;
    margin-top: 0;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.2s, opacity 0.2s, margin-top 0.2s;
    line-height: 1.2;
}

/* Show description on hover */
.bfw-contrast-option:hover .bfw-contrast-help {
    max-height: 100px;
    opacity: 1;
    margin-top: 2px;
}

/* Show description on radio focus */
.bfw-contrast-option input[type="radio"]:focus + .bfw-contrast-text .bfw-contrast-help {
    max-height: 100px;
    opacity: 1;
    margin-top: 2px;
}

/* Panel Footer */
.bfw-panel-footer {
    padding: 10px 16px;
    background: #f9f9f9;
    border-top: 1px solid #f0f0f0;
    text-align: center;
    font-size: 12px;
    color: #999;
}

/* High Contrast Mode */
body.bfw-high-contrast {
    background-color: #000 !important;
    color: #fff !important;
}

body.bfw-high-contrast * {
    background-color: #000 !important;
    color: #fff !important;
    border-color: #fff !important;
}

body.bfw-high-contrast a {
    color: #ffff00 !important;
    text-decoration: underline !important;
}

body.bfw-high-contrast button {
    border: 2px solid #fff !important;
}

/* Widget visibility in high contrast mode */
body.bfw-high-contrast .bfw-widget-button {
    background: #fff !important;
    color: #000 !important;
    border: 2px solid #000 !important;
}

body.bfw-high-contrast .bfw-widget-panel {
    background: #000 !important;
    border: 2px solid #fff !important;
    color: #fff !important;
}

body.bfw-high-contrast .bfw-panel-header {
    background: #fff !important;
    color: #000 !important;
}

body.bfw-high-contrast .bfw-panel-header h2 {
    color: #000 !important;
}

body.bfw-high-contrast .bfw-close-btn {
    color: #000 !important;
}

body.bfw-high-contrast .bfw-reset-btn {
    background: #fff !important;
    color: #000 !important;
    border: 2px solid #000 !important;
}

/* Contrast Modes */

/* Invert - Inverted Colors */
body.bfw-contrast-invert {
    filter: invert(1) hue-rotate(180deg) !important;
}

body.bfw-contrast-invert img {
    filter: invert(1) hue-rotate(180deg) !important;
}

body.bfw-contrast-invert video {
    filter: invert(1) hue-rotate(180deg) !important;
}

/* Dark - Dark Background, Light Text */
body.bfw-contrast-dark {
    background-color: #000 !important;
    color: #e0e0e0 !important;
}

body.bfw-contrast-dark * {
    background-color: #0a0a0a !important;
    color: #e0e0e0 !important;
    border-color: #333 !important;
}

body.bfw-contrast-dark a {
    color: #64b5f6 !important;
}

body.bfw-contrast-dark button {
    background-color: #333 !important;
    color: #e0e0e0 !important;
    border: 1px solid #666 !important;
}

/* Light - Light Background, Dark Text */
body.bfw-contrast-light {
    background-color: #fff !important;
    color: #000 !important;
}

body.bfw-contrast-light * {
    background-color: #fafafa !important;
    color: #000 !important;
    border-color: #ccc !important;
}

body.bfw-contrast-light a {
    color: #0066cc !important;
}

body.bfw-contrast-light button {
    background-color: #f5f5f5 !important;
    color: #000 !important;
    border: 1px solid #999 !important;
}

/* High Contrast - Maximum Contrast Black/White */
body.bfw-contrast-high {
    background-color: #000 !important;
    color: #fff !important;
}

body.bfw-contrast-high * {
    background-color: #000 !important;
    color: #fff !important;
    border-color: #fff !important;
}

body.bfw-contrast-high a {
    color: #ffff00 !important;
    text-decoration: underline !important;
}

body.bfw-contrast-high button,
body.bfw-contrast-high input,
body.bfw-contrast-high select,
body.bfw-contrast-high textarea {
    border: 2px solid #fff !important;
    background-color: #1a1a1a !important;
    color: #fff !important;
}

/* Desaturate - Grayscale */
body.bfw-contrast-desaturate {
    filter: grayscale(100%) !important;
}

body.bfw-contrast-desaturate img {
    filter: grayscale(100%) !important;
}

body.bfw-contrast-desaturate video {
    filter: grayscale(100%) !important;
}

/* ========================================
   WIDGET PROTECTION FROM ALL CONTRAST MODES
   ======================================== */

/* Protect widget from ALL contrast modes */
body.bfw-contrast-invert #bfw-widget-container,
body.bfw-contrast-invert #bfw-widget-container *,
body.bfw-contrast-dark #bfw-widget-container,
body.bfw-contrast-dark #bfw-widget-container *,
body.bfw-contrast-light #bfw-widget-container,
body.bfw-contrast-light #bfw-widget-container *,
body.bfw-contrast-high #bfw-widget-container,
body.bfw-contrast-high #bfw-widget-container *,
body.bfw-contrast-desaturate #bfw-widget-container,
body.bfw-contrast-desaturate #bfw-widget-container * {
    color: #1f2a44 !important;
    background-color: #ffffff !important;
    border-color: #dbe2ef !important;
    filter: none !important;
}

/* Protect widget button specifically */
body.bfw-contrast-invert .bfw-widget-button,
body.bfw-contrast-dark .bfw-widget-button,
body.bfw-contrast-light .bfw-widget-button,
body.bfw-contrast-high .bfw-widget-button,
body.bfw-contrast-desaturate .bfw-widget-button {
    color: white !important;
    background: #1a1a1a !important;
    border-color: white !important;
    filter: none !important;
}

/* Dark Theme */
body.bfw-dark-theme {
    background-color: #1a1a1a !important;
    color: #e0e0e0 !important;
}

body.bfw-dark-theme * {
    background-color: transparent !important;
    color: #e0e0e0 !important;
}

body.bfw-dark-theme a {
    color: #64b5f6 !important;
}

body.bfw-dark-theme button,
body.bfw-dark-theme input,
body.bfw-dark-theme select,
body.bfw-dark-theme textarea,
body.bfw-dark-theme input[type="range"],
body.bfw-dark-theme input[type="color"] {
    background-color: #2a2a2a !important;
    color: #e0e0e0 !important;
    border-color: #444 !important;
}

/* Protect widget from dark theme */
body.bfw-dark-theme #bfw-widget-container,
body.bfw-dark-theme #bfw-widget-container * {
    background-color: #ffffff !important;
    color: #1f2a44 !important;
}

/* Responsive Design */
@media (max-width: 480px) {
    #bfw-widget-container {
        bottom: 10px;
        right: 10px;
    }

    .bfw-widget-panel {
        min-width: 250px;
    }

    .bfw-panel-header h2 {
        font-size: 16px;
    }

    .bfw-panel-content {
        padding: 16px;
    }

    .bfw-control-group {
        margin-bottom: 14px;
    }
}

/* Cursor Size Styling */
body.bfw-cursor-large {
    cursor: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path d="M2 2l8 20h2l8-8h8l-24-12z" fill="black"/></svg>') 0 0, auto;
}

/* Protect widget from cursor size - don't apply cursor to widget */
#bfw-widget-container {
    cursor: auto !important;
}

body.bfw-cursor-xlarge {
    cursor: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48"><path d="M3 3l12 30h3l12-12h12l-36-18z" fill="black"/></svg>') 0 0, auto;
}

/* Protect widget from cursor size - don't apply cursor to widget */
#bfw-widget-container {
    cursor: auto !important;
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Screen Reader Only Text */
.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;
}

/* Print Styles - Hide widget when printing */
@media print {
    #bfw-widget-container {
        display: none !important;
    }
}