@font-face {
    font-family: "IBM Plex Mono";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url("fonts/ibm-plex-mono-400.woff2") format("woff2");
}

@font-face {
    font-family: "IBM Plex Mono";
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url("fonts/ibm-plex-mono-500.woff2") format("woff2");
}

@font-face {
    font-family: "IBM Plex Mono";
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url("fonts/ibm-plex-mono-600.woff2") format("woff2");
}

:root {
    color-scheme: light;
    --bg: #e8e5df;
    --paper: #fffefa;
    --text: #23211d;
    --muted: #706a61;
    --line: #ddd7ce;
    --link: #554337;
    --link-hover: #285c54;
    --focus: #806848;
    --shadow: rgba(36, 31, 24, 0.12);
    --paper-grain: rgba(84, 71, 52, 0.038);
    --paper-fiber: rgba(128, 108, 78, 0.05);
    --paper-sheen: rgba(255, 255, 255, 0.7);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    background-color: var(--bg);
}

body {
    margin: 0;
    min-height: 100%;
    background-color: var(--bg);
    background-image:
        linear-gradient(180deg, rgba(255, 255, 255, 0.36), transparent 360px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.18), transparent 22%, transparent 78%, rgba(0, 0, 0, 0.025));
    background-size: 100% 100%;
    color: var(--text);
    font-family: "IBM Plex Mono", monospace;
    font-size: 16px;
    line-height: 1.75;
}

a {
    color: var(--link);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.22em;
}

a:hover {
    color: var(--link-hover);
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 2px solid var(--focus);
    outline-offset: 3px;
}

.site-shell {
    min-height: 100vh;
}

.reader-shell {
    min-width: 0;
}

.topbar {
    display: flex;
    align-items: center;
    min-height: 58px;
    padding: 7px max(18px, calc((100vw - 820px) / 2));
}

.topbar-title {
    color: var(--text);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0;
    opacity: 0.74;
    text-decoration: none;
}

.topbar-title:hover {
    opacity: 1;
}

.reader {
    width: min(100%, 820px);
    margin: 34px auto 0;
    padding: 56px 48px 72px;
    background:
        radial-gradient(circle at 18% 22%, var(--paper-grain) 0 0.8px, transparent 0.9px),
        radial-gradient(circle at 76% 64%, var(--paper-grain) 0 0.7px, transparent 0.8px),
        repeating-linear-gradient(97deg, transparent 0 13px, var(--paper-fiber) 13px 14px),
        repeating-linear-gradient(2deg, transparent 0 19px, rgba(84, 71, 52, 0.018) 19px 20px),
        linear-gradient(180deg, var(--paper-sheen), transparent 360px),
        var(--paper);
    background-size: 34px 34px, 46px 46px, 100% 17px, 100% 23px, 100% 100%, 100% 100%;
    box-shadow:
        0 22px 46px var(--shadow);
}

.reader:focus {
    outline: none;
}

.content {
    max-width: 680px;
    margin: 0 auto;
}

.content.is-home {
    padding-top: 18px;
}

.content.is-home > h2:first-child {
    margin-bottom: 0.35em;
    font-size: 1.7rem;
}

.content.is-home > h2:nth-child(2) {
    margin-top: 0;
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 400;
}

.page-header {
    margin-bottom: 2.6em;
    padding-bottom: 1.2em;
    border-bottom: 1px solid var(--line);
}

.page-header h1 {
    margin: 0;
    font-size: 1.45rem;
    font-weight: 600;
    line-height: 1.35;
}

.page-footer {
    margin-top: 3.2em;
    padding-top: 1.2em;
    border-top: 1px solid var(--line);
}

.page-copyright {
    margin: 0;
    color: var(--muted);
    font-size: 0.78rem;
    opacity: 0.58;
}

.content h1,
.content h2,
.content h3 {
    margin: 2.4em 0 1em;
    font-weight: 600;
    line-height: 1.35;
}

.content h1:first-child,
.content h2:first-child,
.content h3:first-child {
    margin-top: 0;
}

.content h1 {
    font-size: 1.45rem;
}

.content h2 {
    font-size: 1.1rem;
}

.content h3 {
    font-size: 0.95rem;
}

.content p,
.content ul,
.content ol,
.content blockquote {
    margin: 0 0 1.35em;
}

.content ul,
.content ol {
    padding-left: 1.5em;
}

.content blockquote {
    padding-left: 1.3em;
    border-left: 1px solid var(--line);
    color: var(--muted);
}

.content code {
    font: inherit;
    color: var(--muted);
}

.content hr {
    height: 1px;
    margin: 2.6em 0;
    border: 0;
    background: var(--line);
}

.content img {
    max-width: 100%;
    height: auto;
}

.home-index {
    margin-top: 52px;
    padding-top: 30px;
    border-top: 1px solid var(--line);
}

.home-index h2 {
    margin-top: 0;
}

.home-index-list {
    display: grid;
    gap: 10px;
    padding: 0;
    list-style: none;
}

.home-index-list a {
    display: grid;
    grid-template-columns: 5.5ch minmax(0, 1fr);
    gap: 16px;
    color: var(--text);
    text-decoration: none;
}

.home-index-list a:hover {
    color: var(--link-hover);
}

.home-index-year {
    color: var(--muted);
}

.pager {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 28px;
    max-width: 680px;
    margin: 28px auto 0;
}

.pager-link {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 40px;
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.45;
    text-decoration: none;
}

.pager-link:last-child {
    justify-content: end;
    text-align: right;
}

.pager-link:hover {
    color: var(--text);
}

.pager-link[aria-disabled="true"] {
    visibility: hidden;
    pointer-events: none;
}

.loading,
.error {
    color: var(--muted);
}

@media (max-width: 860px) {
    .reader {
        padding: 38px 22px 56px;
    }

    .content {
        max-width: 100%;
    }

    .content h1 {
        font-size: 1.22rem;
    }

    .content h2 {
        font-size: 1rem;
    }

    .pager {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 15px;
    }

    .topbar {
        padding-inline: 18px;
    }

    .reader {
        padding-inline: 18px;
    }
}

@media print {
    @page {
        margin: 20mm;
    }

    html,
    body {
        background: #fff;
    }

    body {
        color: #000;
        font-size: 11pt;
        line-height: 1.6;
    }

    .topbar,
    .pager {
        display: none;
    }

    .reader {
        width: auto;
        margin: 0;
        padding: 0;
        background: #fff;
        box-shadow: none;
    }

    .content {
        max-width: none;
    }

    a {
        color: #000;
        text-decoration: none;
    }
}