@font-face {
    font-family: 'iA Writer Duo';
    src: url('/fonts/iAWriterDuoS-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'iA Writer Duo';
    src: url('/fonts/iAWriterDuoS-Italic.woff2') format('woff2');
    font-weight: normal;
    font-style: italic;
}

@font-face {
    font-family: 'iA Writer Duo';
    src: url('/fonts/iAWriterDuoS-Bold.woff2') format('woff2');
    font-weight: bold;
    font-style: normal;
}

@font-face {
    font-family: 'iA Writer Duo';
    src: url('/fonts/iAWriterDuoS-BoldItalic.woff2') format('woff2');
    font-weight: bold;
    font-style: italic;
}

@font-face {
    font-family: 'Source Code Pro';
    src: url('/fonts/SourceCodePro-VariableFont_wght.ttf') format('truetype');
    font-weight: 200 900;
    font-style: normal;
}

@font-face {
    font-family: 'Source Code Pro';
    src: url('/fonts/SourceCodePro-Italic-VariableFont_wght.ttf') format('truetype');
    font-weight: 200 900;
    font-style: italic;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'iA Writer Duo', monospace;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: #f6f8fa;
    border-right: 1px solid #e1e4e8;
    padding: 2rem 1.5rem;
    padding-top: 4rem;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.sidebar-open .sidebar {
    transform: translateX(0);
}

.sidebar-nav {
    margin-bottom: 2rem;
}

.sidebar-nav a {
    display: block;
    padding: 0.5rem 0;
    text-decoration: none;
    font-weight: bold;
}

.sidebar-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 10;
    background: #fff;
    border: 1px solid #e1e4e8;
    border-radius: 4px;
    padding: 0.5rem 0.75rem;
    font-size: 1.25rem;
    cursor: pointer;
}

.sidebar-toggle:hover {
    background: #f6f8fa;
}

.sidebar-open .sidebar-toggle {
    display: none;
}

.sidebar-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6e7781;
    padding: 0.25rem 0.5rem;
    line-height: 1;
}

.sidebar-close:hover {
    color: #24292f;
}

/* Main content */
main {
    padding: 2rem;
    padding-left: 5rem;
    transition: margin-left 0.3s ease, padding-left 0.3s ease;
}

.sidebar-open main {
    margin-left: 280px;
    padding-left: 3rem;
}

article h1 {
    margin-top: 0;
}

a {
    color: #0066cc;
}

a:visited {
    color: #551a8b;
}

/* Backlinks in sidebar */
.backlinks {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #e1e4e8;
}

.backlinks h2 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6e7781;
    margin-bottom: 0.75rem;
}

.backlinks ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.backlinks li {
    margin-bottom: 0.5rem;
}

.backlinks a {
    text-decoration: none;
    font-size: 0.9rem;
}

.backlinks a:hover {
    text-decoration: underline;
}

/* Code blocks */
pre {
    background: #f6f8fa;
    padding: 1rem;
    padding-left: 3.5rem;
    overflow-x: auto;
    border-radius: 4px;
    position: relative;
}

pre.chroma {
    counter-reset: line;
}

pre.chroma .line::before {
    counter-increment: line;
    content: counter(line);
    display: inline-block;
    width: 2.5rem;
    margin-left: -3.5rem;
    padding-right: 1rem;
    text-align: right;
    color: #6e7781;
    user-select: none;
    pointer-events: none;
}

pre .copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: #fff;
    border: 1px solid #e1e4e8;
    border-radius: 4px;
    padding: 0.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

pre .copy-btn:hover {
    background: #f6f8fa;
}

pre .copy-btn .material-icons {
    font-size: 1.125rem;
    color: #6e7781;
}

code {
    font-family: 'Source Code Pro', monospace;
    font-size: 0.9em;
}

/* Inline code */
:not(pre) > code {
    background: #f6f8fa;
    color: #0550ae;
    padding: 0.2em 0.4em;
    border-radius: 3px;
}

/* Chroma syntax highlighting (github style) */
.chroma { background-color: #f6f8fa; }
.chroma .lntd { vertical-align: top; padding: 0; margin: 0; border: 0; }
.chroma .lntable { border-spacing: 0; padding: 0; margin: 0; border: 0; }
.chroma .hl { background-color: #ffffcc; }
.chroma .lnt { color: #6e7781; padding: 0 0.4em 0 0.4em; }
.chroma .ln { color: #6e7781; padding: 0 0.4em 0 0.4em; }
.chroma .k { color: #cf222e; }
.chroma .kc { color: #cf222e; }
.chroma .kd { color: #cf222e; }
.chroma .kn { color: #cf222e; }
.chroma .kp { color: #cf222e; }
.chroma .kr { color: #cf222e; }
.chroma .kt { color: #cf222e; }
.chroma .na { color: #116329; }
.chroma .nb { color: #953800; }
.chroma .nc { color: #953800; }
.chroma .no { color: #0550ae; }
.chroma .nd { color: #8250df; }
.chroma .ni { color: #24292f; }
.chroma .ne { color: #953800; }
.chroma .nf { color: #8250df; }
.chroma .nl { color: #0550ae; }
.chroma .nn { color: #953800; }
.chroma .nt { color: #116329; }
.chroma .nv { color: #0550ae; }
.chroma .s { color: #0a3069; }
.chroma .sa { color: #0a3069; }
.chroma .sb { color: #0a3069; }
.chroma .sc { color: #0a3069; }
.chroma .dl { color: #0a3069; }
.chroma .sd { color: #0a3069; }
.chroma .s2 { color: #0a3069; }
.chroma .se { color: #0a3069; }
.chroma .sh { color: #0a3069; }
.chroma .si { color: #0a3069; }
.chroma .sx { color: #0a3069; }
.chroma .sr { color: #116329; }
.chroma .s1 { color: #0a3069; }
.chroma .ss { color: #0a3069; }
.chroma .m { color: #0550ae; }
.chroma .mb { color: #0550ae; }
.chroma .mf { color: #0550ae; }
.chroma .mh { color: #0550ae; }
.chroma .mi { color: #0550ae; }
.chroma .il { color: #0550ae; }
.chroma .mo { color: #0550ae; }
.chroma .o { color: #cf222e; }
.chroma .ow { color: #cf222e; }
.chroma .c { color: #6e7781; }
.chroma .ch { color: #6e7781; }
.chroma .cm { color: #6e7781; }
.chroma .c1 { color: #6e7781; }
.chroma .cs { color: #6e7781; }
.chroma .cp { color: #cf222e; }
.chroma .cpf { color: #0a3069; }
.chroma .gd { color: #82071e; background-color: #ffebe9; }
.chroma .ge { font-style: italic; }
.chroma .gr { color: #82071e; }
.chroma .gh { color: #0550ae; font-weight: bold; }
.chroma .gi { color: #116329; background-color: #dafbe1; }
.chroma .go { color: #6e7781; }
.chroma .gp { color: #6e7781; font-weight: bold; }
.chroma .gs { font-weight: bold; }
.chroma .gu { color: #0550ae; font-weight: bold; }
.chroma .gl { text-decoration: underline; }