@layer theme,base,layout,components,prose,syntax,print;@layer theme{:root{color-scheme:light dark;--color-mint-400:hsl(166deg 85.7% 72.5%);--color-mint-500:hsl(166deg 68.9% 62.2%);--color-mint-500-a10:hsl(166deg 68.9% 62.2% / 10%);--color-mint-500-a15:hsl(166deg 68.9% 62.2% / 15%);--color-mint-500-a20:hsl(166deg 68.9% 62.2% / 20%);--color-mint-500-a25:hsl(166deg 68.9% 62.2% / 25%);--color-mint-500-a30:hsl(166deg 68.9% 62.2% / 30%);--color-mint-500-a40:hsl(166deg 68.9% 62.2% / 40%);--color-mint-500-a60:hsl(166deg 68.9% 62.2% / 60%);--color-mint-600:hsl(166deg 48.6% 51.2%);--color-mint-700:hsl(166deg 58.8% 39%);--color-mint-800:hsl(166deg 67.1% 28.6%);--color-mint-accent-1:hsl(166deg 60.4% 36.7%);--color-mint-accent-1-a25:hsl(166deg 60.4% 36.7% / 25%);--color-mint-accent-2:hsl(166deg 58.2% 55.9%);--bg:hsl(166deg 25% 97%);--ink:hsl(166deg 27% 16%);--muted:hsl(166deg 14% 37%);--rule:hsl(166deg 20% 82%);--accent:var(--color-mint-800);--accent-hover:var(--ink);--accent-mark:var(--color-mint-500);--wash:var(--color-mint-500-a10);--paper:hsl(166deg 30% 99%);--paper-back:hsl(166deg 30% 84%);--paper-line:hsl(166deg 20% 67%);--paper-shadow:hsl(166deg 50% 15% / 10%);--code:hsl(166deg 24% 93%);--selection-bg:var(--color-mint-500-a40);--font-serif:"Hiragino Mincho ProN", "Yu Mincho", yumincho, serif;--font-mono:monospace;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--layout-max:67.5rem;--article-max:47.5rem;--toc-width:13rem;--page-gutter:3rem;--radius:0.1875rem;--radius-sm:0.125rem;@media(prefers-color-scheme:dark){--bg: hsl(166deg 25% 8%); --ink: hsl(166deg 27% 91%); --muted: hsl(166deg 17% 68%); --rule: hsl(166deg 19% 24%); --accent: var(--color-mint-500); --accent-hover: var(--color-mint-400); --accent-mark: var(--color-mint-400); --paper: hsl(166deg 21% 17%); --paper-back: hsl(166deg 23% 23%); --paper-line: hsl(166deg 20% 40%); --paper-shadow: hsl(166deg 50% 3% / 25%); --code: hsl(166deg 22% 13%);}@media(width <= 43.75rem){--page-gutter: 1.25rem;}}}@layer base{:root{font-synthesis:none;line-height:1.8;background:var(--bg);color:var(--ink)}*{box-sizing:border-box}html{scroll-padding-top:var(--space-8)}body{margin:0}a{color:inherit;text-underline-offset:.25em;text-decoration-thickness:1px;@media(prefers-reduced-motion:no-preference){transition: color 0.15s ease;}&:hover{color:var(--accent-hover)}}a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:.375rem;border-radius:var(--radius-sm)}::selection{background:var(--selection-bg);color:var(--ink)}img{max-width:100%;height:auto}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{line-height:1.6;overflow-wrap:anywhere}h1,h2{font-feature-settings:"palt"}h1{font-weight:600}button,input{font:inherit}main:focus{outline:none}}@layer layout{.shell{width:min(var(--layout-max),calc(100% - 2 * var(--page-gutter)));margin-inline:auto}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:var(--space-12);align-items:center;padding-block:5.375rem 5.75rem;@media(width <= 43.75rem){grid-template-columns: 1fr; gap: var(--space-10); padding-block: 3.125rem 3.625rem;}& h1{font-family:var(--font-serif);font-size:clamp(2.2rem,4.5vw,3.55rem);letter-spacing:.09em;line-height:1.6;margin-bottom:var(--space-6);@media(width <= 43.75rem){font-size: 2.4rem;}}}.latest{padding-bottom:6.25rem;@media(width <= 43.75rem){padding-bottom: 4.0625rem;}}.page-section{min-height:60vh;padding-block:4.0625rem 6.25rem;@media(width <= 43.75rem){padding-block: 2.8125rem 4.375rem;}}.article-shell{max-width:var(--article-max);width:calc(100% - 2 * var(--page-gutter));margin-inline:auto;padding:2.8125rem 0 5.625rem;@media(width <= 43.75rem){padding-top: 1.75rem;}}.article-copy{min-width:0}.article-shell--with-toc{@media screen and (width >= 70rem){display: grid; grid-template-columns: minmax(0,var(--article-max)) var(--toc-width); column-gap: var(--space-12); max-width: var(--layout-max); justify-content: center; align-items: start; &>.article-header,&>.article-copy,&>.article-end{grid-column:1}&>.article-toc{grid-column:2;grid-row:2/span 2;align-self:stretch}}}.article-toc{display:none;@media screen and (width >= 70rem){display: block; &>.toc-nav{position:sticky;top:var(--space-8);max-height:calc(100svh - 2 * var(--space-8));overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;border-left:1px solid var(--rule);padding:var(--space-2)var(--space-2)var(--space-2)var(--space-4)}}}}@layer components{.skip-link{position:absolute;top:-6rem;left:var(--space-4);z-index:10;padding:.65rem var(--space-4);background:var(--ink);color:var(--bg);&:focus{top:var(--space-4)}&:hover{color:var(--bg)}}.site-header{display:flex;justify-content:space-between;align-items:center;gap:var(--space-8);min-height:7rem;border-bottom:1px solid var(--rule);@media(width <= 43.75rem){min-height: 6.25rem; gap: var(--space-4); align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 1.25rem;}& nav{display:flex;gap:var(--space-8);font-size:.8rem;@media(width <= 43.75rem){gap: var(--space-6); font-size: 0.72rem;}& a{text-decoration:none;&[aria-current]{text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:.65em}}}}.wordmark{display:flex;align-items:center;gap:.8125rem;font-size:1.25rem;font-weight:650;letter-spacing:.08em;text-decoration:none;white-space:nowrap;@media(width <= 43.75rem){font-size: 1.1rem;}}.brand-dot{width:.4375rem;height:.4375rem;border-radius:50%;background:var(--accent-mark)}.eyebrow{font-size:.68rem;letter-spacing:.2em;color:var(--muted);font-weight:600;margin-bottom:1.65rem;@media(width <= 43.75rem){font-size: 0.6rem;}}.hero-description{font-size:.88rem;line-height:2.2;color:var(--muted);margin-bottom:var(--space-8)}.text-link{display:inline-flex;gap:var(--space-10);align-items:center;font-size:.8rem;text-decoration:none;color:var(--accent);border-bottom:1px solid;padding-bottom:var(--space-2);&:hover{color:var(--accent-hover)}}.hero-art{height:18.75rem;position:relative;background:var(--wash);border-radius:50% 50% var(--radius-sm)var(--radius-sm);isolation:isolate;@media(width <= 43.75rem){height: 14.0625rem; max-width: 21.25rem; width: 100%; justify-self: center;}}.paper{position:absolute;width:11.875rem;height:15.25rem;left:calc(50% - 5.9375rem);top:1.25rem;border:1px solid var(--rule);@media(width <= 43.75rem){scale: 0.77; transform-origin: top center;}}.paper-back{background:var(--paper-back);transform:rotate(-11deg)translate(-.8125rem,.5625rem)}.paper-front{background:var(--paper);transform:rotate(8deg)translate(.625rem,.25rem);padding:1.8125rem;box-shadow:.3125rem .5625rem 1.25rem var(--paper-shadow)}.paper-sun{display:block;width:4.0625rem;height:4.0625rem;background:var(--accent-mark);border-radius:50%;margin:.3125rem 0 1.6875rem}.paper-line{display:block;height:1px;background:var(--paper-line);margin-bottom:.8125rem;&.short{width:70%}}.paper-number{display:block;font-size:.5rem;letter-spacing:.25em;color:var(--muted);margin-top:1.6875rem}.art-caption{position:absolute;bottom:.5625rem;left:0;right:0;text-align:center;font-size:.5rem;letter-spacing:.25em;color:var(--muted);@media(width <= 43.75rem){bottom: 0.4375rem;}}.section-label{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--ink);padding-bottom:var(--space-4);& h2{font-size:.95rem;letter-spacing:.08em;margin:0;font-weight:600}& > span{font-size:.6rem;letter-spacing:.15em;color:var(--muted)}}.post-card{display:grid;grid-template-columns:8.4375rem 1fr 1.25rem;gap:var(--space-6);padding:2.25rem 0;border-bottom:1px solid var(--rule);@media(width <= 43.75rem){grid-template-columns: 1fr 1.25rem; gap: 0.625rem; padding-block: 1.75rem;}& > .post-meta{padding-top:.3125rem;@media(width <= 43.75rem){grid-column: 1 / -1; padding: 0;}}& h2{font-size:1.3rem;font-weight:550;letter-spacing:.025em;margin:0 0 .6rem;@media(width <= 43.75rem){font-size: 1.15rem;}& a{text-decoration:none}}}.post-meta{color:var(--muted);font-size:.7rem;letter-spacing:.03em}.post-card-body{& > p{font-size:.8rem;line-height:1.95;color:var(--muted);margin:0 0 var(--space-4);max-width:38.75rem;@media(width <= 43.75rem){font-size: 0.8rem;}}}.post-arrow{color:var(--muted);padding-top:.3125rem}.tags{list-style:none;display:flex;flex-wrap:wrap;gap:.45rem;padding:0;margin:0;& a{display:block;background:var(--wash);border:1px solid var(--rule);padding:.12rem .65rem;font-size:.64rem;text-decoration:none;border-radius:var(--radius-sm);&:hover{background:var(--color-mint-500-a20);border-color:var(--accent)}}}.site-footer{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);border-top:1px solid var(--rule);padding-block:1.75rem 2.25rem;font-size:.67rem;color:var(--muted);@media(width <= 43.75rem){flex-direction: column; align-items: flex-start; gap: var(--space-3);}& p{margin:0;& > span{margin-left:.65rem;&:last-child{@media(width <= 43.75rem){display: block; margin-left: 0; margin-top: 0.2rem;}}&:first-child{@media(width <= 43.75rem){display: none;}}}}& a{white-space:nowrap;text-decoration:none}}.page-title{font-size:2.2rem;margin-bottom:var(--space-4);@media(width <= 43.75rem){font-size: 1.8rem;}}.page-description{font-size:.9rem;color:var(--muted);margin-bottom:var(--space-12)}.back-link{display:inline-block;font-size:.7rem;color:var(--muted);text-decoration:none;margin-bottom:var(--space-12);@media(width <= 43.75rem){margin-bottom: 2.2rem;}&:hover{color:var(--accent-hover)}}.article-header{border-bottom:1px solid var(--rule);padding-bottom:var(--space-8);margin-bottom:var(--space-10);& .post-meta{margin-bottom:var(--space-4)}& h1{font-family:var(--font-serif);font-size:clamp(1.8rem,4vw,2.6rem);letter-spacing:.05em;line-height:1.65;margin-bottom:var(--space-4);@media(width <= 43.75rem){font-size: 1.9rem;}}& .tags{margin-top:var(--space-6)}}.article-lead{color:var(--muted);font-size:.9rem;line-height:2}.article-shell--with-toc>.article-header{margin-bottom:0;@media screen and (width >= 70rem){margin-bottom: var(--space-10);}}.article-end{border-top:1px solid var(--rule);margin-top:var(--space-16);padding-top:var(--space-10);text-align:center;color:var(--muted);font-size:.8rem;& > span{font-size:1.6rem;color:var(--accent)}& p{margin-top:var(--space-2)}& a{font-size:.75rem}}.pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:var(--space-8);padding:var(--space-8)0;font-size:.8rem}.tag-index{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(12.5rem,1fr));gap:var(--space-4);& a{display:flex;justify-content:space-between;border-bottom:1px solid var(--rule);padding:var(--space-4)0;text-decoration:none}& span{font-size:.75rem;color:var(--muted)}}}@layer prose{.prose{font-size:1rem;line-height:2.15;overflow-wrap:anywhere;line-break:strict;@media(width <= 43.75rem){font-size: 0.95rem; line-height: 2.1;}& p{margin-bottom:1.6rem}& a{color:var(--accent);&:hover{color:var(--accent-hover)}}& h2{font-size:1.45rem;margin:3.1rem 0 1.2rem;letter-spacing:.02em;@media(width <= 43.75rem){font-size: 1.3rem;}}& h3{font-size:1.12rem;margin:2.3rem 0 var(--space-4)}& h4{margin:var(--space-8)0 var(--space-4)}& ul, & ol{padding-left:1.6rem;margin-block:var(--space-4)var(--space-8)}& li{padding-left:var(--space-1);margin-block:.4rem}& figure, & .imageblock{margin:var(--space-10)0}& img{display:block;border-radius:var(--radius);@media(prefers-color-scheme:dark){opacity: 0.9;}}& figcaption, & .imageblock .title{font-size:.7rem;color:var(--muted);line-height:1.7;margin-top:.8rem}& blockquote, & .quoteblock{margin:var(--space-8)0;padding:.3rem 0 .3rem var(--space-6);border-left:2px solid var(--accent);color:var(--muted)}& .quoteblock{& > blockquote{margin:0;padding:0;border:0}& .attribution{margin-top:var(--space-3);font-size:.8rem;line-height:1.8}}& blockquote p:last-child, & .quoteblock p:last-child{margin-bottom:0}& pre{background:var(--code);padding:1.3rem var(--space-6);overflow-x:auto;border:1px solid var(--rule);border-radius:var(--radius);font-size:.8rem;line-height:1.8;tab-size:2;@media(width <= 43.75rem){padding: var(--space-4);}& code{padding:0;background:0 0;font-size:inherit;overflow-wrap:normal}}& code{font-family:var(--font-mono);font-size:.86em;background:var(--code);padding:.15em .3em;border-radius:var(--radius-sm)}& .highlight{margin:var(--space-8)0}& table{display:block;overflow-x:auto;width:100%;border-collapse:collapse;font-size:.88rem;line-height:1.8;margin:var(--space-8)0;&.tableblock{width:fit-content;max-width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--rule);border-radius:var(--radius);& th, & td{border:0;padding:var(--space-3)var(--space-4)}& tbody > tr + tr > :is(th, td), & tfoot > tr > :is(th, td){border-top:1px solid var(--rule)}@media(width <= 43.75rem){& th,& td{padding:var(--space-3)}}}}& th, & td{border:1px solid var(--rule);padding:.8rem var(--space-4);text-align:left;min-width:7rem}& th{background:var(--wash);font-weight:600}& td p{margin:0}& .admonitionblock{background:var(--wash);border-left:2px solid var(--accent);padding:.2rem var(--space-4);margin:var(--space-8)0;& table{margin:var(--space-2)0}& td{border:0;min-width:0;padding:var(--space-2)}& .icon{font-size:.65rem;font-weight:650;color:var(--accent);white-space:nowrap}}& .listingblock .title{font-size:.8rem;color:var(--muted)}}.toc-nav{font-size:.85rem;line-height:1.8;overflow-wrap:anywhere;& .toc-heading{margin:0 0 var(--space-3);font-size:inherit;font-weight:600;color:var(--muted)}& ul{list-style:none;margin:0;padding:0}& ul ul{margin-left:var(--space-1);padding-left:var(--space-3);border-left:1px solid var(--rule)}& li{margin:0;padding:0}& a{display:block;padding-block:var(--space-1);color:var(--muted);text-decoration:none;&:hover{color:var(--accent);text-decoration:underline}}}.toc-disclosure{margin-block:0 var(--space-8);border-block:1px solid var(--rule);font-size:.85rem;line-height:1.8;overflow-wrap:anywhere;& > summary{display:flex;justify-content:space-between;align-items:center;gap:var(--space-3);min-height:3rem;padding:var(--space-2)var(--space-3);color:var(--muted);list-style:none;cursor:pointer;&::-webkit-details-marker{display:none}&:hover{color:var(--accent)}}& .toc-toggle{display:inline-flex;align-items:center;gap:var(--space-2);flex-shrink:0;font-size:.75rem;&::before{content:"開く"}&::after{content:"+";font-size:1rem}}&[open] > summary{color:var(--ink);& .toc-toggle::before{content:"閉じる"}& .toc-toggle::after{content:"−"}}& > .toc-nav{padding:0 var(--space-3)var(--space-4)}}.toc-disclosure--mobile{border-top:0;@media screen and (width >= 70rem){display: none;}}}@layer print{@media print{:root{color-scheme:light;--bg:hsl(0deg 0% 100%);--ink:hsl(0deg 0% 6.666667%);--muted:hsl(0deg 0% 26.666667%);--rule:hsl(0deg 0% 73.333333%);--wash:hsl(0deg 0% 95.686275%);--code:var(--wash);--accent:var(--ink);--accent-hover:var(--ink)}body{font-size:11pt}.shell,.article-shell{width:100%;max-width:none}.site-header,.site-footer,.back-link,.article-end,.skip-link,.hero-art,.pagination,.toc-disclosure,.article-toc{display:none}.article-shell,.page-section{padding:0}.article-header{padding-bottom:var(--space-4);margin-bottom:var(--space-4)}.hero{padding:0;display:block}.latest{padding-bottom:0}.prose{font-size:11pt;line-height:1.9;& h2, & h3{break-after:avoid}& pre{white-space:pre-wrap;overflow-wrap:anywhere}& img{opacity:1;max-height:70vh;object-fit:contain}& figure, & pre{break-inside:avoid}}.tags{gap:var(--space-4);& a{border:0;padding:0}}}}