/* Enhanced Accessibility Stylesheet for Math Textbook */

/* Font sizing and readability */
body {
    font-size: 16px;
    line-height: 1.7;
}

/* Improved contrast for better visibility */
.wy-nav-content {
    max-width: 900px;
}

/* Mathematical content styling */
.math {
    font-size: 1.1em;
    line-height: 1.5;
}

.math-block {
    padding: 1em;
    background-color: #f8f9fa;
    border-left: 4px solid #0066cc;
    margin: 1em 0;
}

/* Code block accessibility */
.highlight {
    background-color: #f8f9fa;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 1em;
    overflow-x: auto;
}

code {
    background-color: #f0f0f0;
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-size: 0.95em;
}

pre code {
    background-color: transparent;
    padding: 0;
}

/* Heading accessibility */
h1, h2, h3, h4, h5, h6 {
    color: #000;
    font-weight: 600;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

h1 {
    font-size: 2em;
    border-bottom: 3px solid #0066cc;
    padding-bottom: 0.3em;
}

h2 {
    font-size: 1.6em;
    border-bottom: 2px solid #0066cc;
    padding-bottom: 0.2em;
}

h3 {
    font-size: 1.3em;
}

/* Definition and note blocks */
.admonition {
    padding: 1em;
    margin: 1.5em 0;
    border-left: 5px solid #0066cc;
    background-color: #f0f7ff;
    border-radius: 4px;
}

.admonition.warning {
    border-left-color: #ff6b6b;
    background-color: #ffe0e0;
}

.admonition.important {
    border-left-color: #ffa500;
    background-color: #fff5e0;
}

.admonition.tip {
    border-left-color: #51cf66;
    background-color: #e6f7ed;
}

.admonition-title {
    font-weight: bold;
    font-size: 1.1em;
    margin-bottom: 0.5em;
}

/* Tables */
table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.5em 0;
}

th, td {
    border: 1px solid #ddd;
    padding: 0.75em;
    text-align: left;
}

th {
    background-color: #f0f0f0;
    font-weight: bold;
    color: #000;
}

/* Lists */
ul, ol {
    margin: 1em 0;
    padding-left: 2em;
    line-height: 1.8;
}

li {
    margin-bottom: 0.5em;
}

/* Links */
a {
    color: #0066cc;
    text-decoration: underline;
}

a:visited {
    color: #663399;
}

a:hover {
    color: #0052a3;
    text-decoration: underline;
}

a:focus {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

/* Skip to main content link (for screen readers) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background-color: #0066cc;
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Focus indicators */
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

/* Image accessibility */
img {
    max-width: 100%;
    height: auto;
}

figure {
    margin: 1.5em 0;
    text-align: center;
}

figcaption {
    font-style: italic;
    font-size: 0.95em;
    color: #666;
    margin-top: 0.5em;
}

/* Navbar accessibility improvements */
.wy-nav-top {
    background-color: #2980B9;
    padding: 0.5em;
}

.wy-side-nav-search {
    padding: 1em;
}

.wy-side-nav-search input[type="text"] {
    border: 2px solid #ccc;
    padding: 0.5em;
    width: 90%;
}

/* Print styles */
@media print {
    a {
        text-decoration: underline;
    }
    
    .admonition, .note, .warning {
        page-break-inside: avoid;
    }
    
    h1, h2, h3, h4 {
        page-break-after: avoid;
    }
}