:root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #1e293b;
    --muted: #64748b;
    --accent: #2563eb;
    --border: #e2e8f0;
    --code-bg: #f1f5f9;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0 auto;
    background: var(--bg);
    color: var(--text);
    font-family:
        Inter, ui-sans-serif, system-ui, -apple-system,
        BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.2;
    padding: 3rem 1.5rem;
    max-width: 900px;
}



h1,
h2,
h3 {
    line-height: 1.25;
    letter-spacing: -0.025em;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h2 {
    margin-top: 2.5rem;
    font-size: 1.75rem;
}

h3 {
    margin-top: 2rem;
    font-size: 1.3rem;
}

p,
ul,
ol {
    margin: 1rem 0;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

blockquote {
    margin: 1.5rem 0;
    padding: 0.75rem 1.25rem;
    border-left: 4px solid var(--accent);
    color: var(--muted);
    background: #f8fafc;
}

code {
    padding: 0.15em 0.35em;
    border-radius: 5px;
    background: var(--code-bg);
    font-size: 0.9em;

}

pre {
    padding: 1.25rem;
    overflow-x: auto;
    border-radius: 10px;
    background: #0f172a;
    color: #e2e8f0;

}

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

img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

div.sourceCode {
    overflow-x: auto;
    max-width: 100%;
}

table {
    width: 100%;
    border-collapse: collapse;
    max-width: 100%;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;

}

th,
td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

td{
    white-space: nowrap;
}

th {
    font-weight: 600;
    background: #f8fafc;
}

.page {
    text-align: center;
    color: #64748b;
}

.page>span {
    color: crimson;
}

.note {
    text-align: right;
    font-style: italic;
    color: var(--muted);
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.heading {

    margin-top: 4rem;
    padding: 0.2rem 0.8rem;
    border-left: 4px solid #0cafaf;
    color: var(--muted);
    background: #f8fafc;

}

img,
svg,
canvas {
    max-width: 100%;
    height: auto;
}

.svg{
    display: none;
}

@media (max-width: 640px) {
    main {
        padding: 2rem 1rem;
    }

    h1 {
        font-size: 2rem;
    }
}
@media (max-width: 768px) {
.svg{
    display: block;
}
}