@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:400 700;font-display:swap;src:url(/fonts/source-serif-4-latin.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:400 700;font-display:swap;src:url(/fonts/source-serif-4-latin-ext.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:400 700;font-display:swap;src:url(/fonts/source-serif-4-italic-latin.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:400 700;font-display:swap;src:url(/fonts/source-serif-4-italic-latin-ext.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:400 600;font-display:swap;src:url(/fonts/jetbrains-mono-latin.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:400 600;font-display:swap;src:url(/fonts/jetbrains-mono-latin-ext.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}:root{color-scheme:light dark;--washi-100:#fff;--washi-200:#faf8f5;--washi-300:#f3f0ea;--washi-400:#e8e4db;--sumi-100:#e9e7e1;--sumi-400:#5a5854;--sumi-700:#333;--sumi-800:#1a1a1a;--sumi-900:#101114;--sumi-950:#0b0c0e;--shu-500:#c73e3a;--shu-400:#c85a52;--color-bg:light-dark(var(--washi-200),var(--sumi-950));--color-bg-subtle:light-dark(var(--washi-300),var(--sumi-900));--color-bg-raised:light-dark(var(--washi-100),#14161a);--color-fg:light-dark(var(--sumi-800),var(--sumi-100));--color-fg-muted:light-dark(var(--sumi-400),#e9e7e19e);--color-fg-faint:light-dark(#1a1a1a9e,#e9e7e18c);--color-rule:light-dark(#1a1a1a24,#e9e7e124);--color-rule-strong:light-dark(#1a1a1a47,#e9e7e147);--color-accent:light-dark(var(--shu-500),var(--shu-400));--color-accent-fg:light-dark(var(--washi-200),var(--sumi-950));--color-selection-bg:var(--color-accent);--color-selection-fg:var(--color-accent-fg);--ink-canvas-bg:light-dark(var(--washi-200),var(--sumi-950));--ink-pigment:light-dark(#1a1a1a,#e8e6e0);--ink-accent:light-dark(var(--shu-500),var(--shu-400));--font-serif:"Source Serif 4", "Source Serif Pro", "Yu Mincho", YuMincho, "Hiragino Mincho ProN", "Noto Serif JP", "Songti SC", serif;--font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;--text-xs:.6875rem;--text-sm:.8125rem;--text-base:1rem;--text-md:1.0625rem;--text-lg:1.1875rem;--text-xl:clamp(1.5rem, 3vw, 2rem);--text-2xl:clamp(2.125rem, 4.4vw, 3.375rem);--text-hero:clamp(4.5rem, 17vw, 14.375rem);--leading-tight:1.15;--leading-snug:1.35;--leading-normal:1.65;--leading-relaxed:1.85;--tracking-label:.14em;--tracking-wide:.3em;--tracking-hero:.04em;--tracking-tight:-.01em;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-24:6rem;--gutter:clamp(1.25rem, 5vw, 2.75rem);--section-y:clamp(4.5rem, 10vw, 6.875rem);--width-wide:72.5rem;--width-prose:40rem;--radius:2px;--rule-width:1px;--ease-out:cubic-bezier(.22, 1, .36, 1);--duration-fast:.14s;--duration-base:.26s;--duration-slow:.9s}:root[data-theme=light]{color-scheme:light}:root[data-theme=dark]{color-scheme:dark}@media (prefers-reduced-motion:reduce){:root{--duration-fast:0s;--duration-base:0s;--duration-slow:0s}}*,:before,:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:var(--space-24)}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}body{background:var(--color-bg);min-height:100svh;color:var(--color-fg);font-family:var(--font-serif);font-size:var(--text-base);line-height:var(--leading-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility}img,picture,svg,video,canvas{max-width:100%;height:auto;display:block}input,button,textarea,select{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:none}h1,h2,h3,h4,h5,h6{font-weight:500;line-height:var(--leading-tight);text-wrap:balance;letter-spacing:var(--tracking-tight)}a{color:inherit;text-decoration-color:var(--color-rule-strong);text-underline-offset:.22em;transition:color var(--duration-fast) var(--ease-out), text-decoration-color var(--duration-fast) var(--ease-out);text-decoration-thickness:1px}a:hover{color:var(--color-accent);text-decoration-color:currentColor}hr{height:var(--rule-width);background:var(--color-rule);border:0}::selection{background:var(--color-selection-bg);color:var(--color-selection-fg)}:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px}.wrap{width:100%;max-width:var(--width-wide);padding-inline:var(--gutter);margin-inline:auto}.section{padding-block:var(--section-y)}.rule-grid{gap:var(--rule-width);background:var(--color-rule);border:var(--rule-width) solid var(--color-rule);display:grid}.rule-grid>*{background:var(--color-bg)}.label{font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-label);text-transform:uppercase;color:var(--color-fg-faint);font-weight:400}.label--accent{color:var(--color-accent);letter-spacing:var(--tracking-wide)}.eyebrow{font-family:var(--font-mono);font-size:var(--text-sm);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--color-accent)}.lede{font-size:var(--text-md);line-height:var(--leading-normal);color:var(--color-fg-muted)}.tategaki{writing-mode:vertical-rl;font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-wide);color:var(--color-fg-faint)}.skip-link{top:var(--space-2);left:var(--space-2);z-index:100;padding:var(--space-3) var(--space-4);background:var(--color-fg);color:var(--color-bg);font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-label);text-transform:uppercase;border-radius:var(--radius);transition:transform var(--duration-fast) var(--ease-out);text-decoration:none;position:absolute;transform:translateY(-150%)}.skip-link:focus-visible{transform:translateY(0)}.visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.site-footer[data-astro-cid-jo6i4kqk]{margin-top:var(--section-y);border-top:var(--rule-width) solid var(--color-rule)}.site-footer__inner[data-astro-cid-jo6i4kqk]{justify-content:space-between;align-items:center;gap:var(--space-4) var(--space-8);padding-block:var(--space-8);font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.1em;text-transform:uppercase;color:var(--color-fg-faint);flex-wrap:wrap;display:flex}.site-footer__social[data-astro-cid-jo6i4kqk]{gap:var(--space-6);margin:0;padding:0;list-style:none;display:flex}.site-footer[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{text-decoration:none}.site-footer[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]:hover{color:var(--color-accent)}.site-footer__legal[data-astro-cid-jo6i4kqk]{margin-left:auto}@media (width<=40rem){.site-footer__legal[data-astro-cid-jo6i4kqk]{margin-left:0}}.theme-toggle[data-astro-cid-l6lhmie6]{width:2rem;height:2rem;color:var(--color-fg-muted);border-radius:var(--radius);transition:color var(--duration-fast) var(--ease-out);place-items:center;margin-inline-start:calc(var(--space-2) * -1);display:grid}.theme-toggle[data-astro-cid-l6lhmie6]:hover{color:var(--color-fg)}.theme-toggle__icon[data-astro-cid-l6lhmie6]{width:.875rem;height:.875rem;transition:rotate var(--duration-base) var(--ease-out);background:linear-gradient(90deg,currentColor 0 50%,#0000 50% 100%);border:1px solid;border-radius:50%}:root[data-theme=dark] .theme-toggle__icon[data-astro-cid-l6lhmie6]{rotate:180deg}.site-header[data-astro-cid-nen7h5rs]{z-index:10;justify-content:space-between;align-items:center;gap:var(--space-4);padding:var(--space-6) var(--gutter);display:flex;position:relative}.site-header[data-astro-cid-nen7h5rs][data-overlay]{inset-inline:0;position:absolute;top:0}.brand[data-astro-cid-nen7h5rs]{align-items:baseline;gap:var(--space-3);text-decoration:none;display:flex}.brand[data-astro-cid-nen7h5rs]:hover{color:inherit}.brand__mark[data-astro-cid-nen7h5rs]{font-family:var(--font-mono);letter-spacing:var(--tracking-label);text-transform:uppercase;font-size:1.1875rem;font-weight:600}.brand__sub[data-astro-cid-nen7h5rs]{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-fg-faint)}.site-header__end[data-astro-cid-nen7h5rs]{align-items:center;gap:clamp(var(--space-4), 3vw, var(--space-8));display:flex}.nav__list[data-astro-cid-nen7h5rs]{align-items:center;gap:clamp(var(--space-4), 3vw, var(--space-8));margin:0;padding:0;list-style:none;display:flex}.nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{font-family:var(--font-mono);font-size:var(--text-sm);letter-spacing:.08em;text-transform:uppercase;color:var(--color-fg-muted);text-decoration:none}.nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]:hover,.nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs][aria-current=page]{color:var(--color-fg)}.nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs][aria-current=page]{text-decoration:underline;text-decoration-color:var(--color-accent);text-underline-offset:.4em;text-decoration-thickness:1px}@media (width<=40rem){.brand__sub[data-astro-cid-nen7h5rs]{display:none}.site-header[data-astro-cid-nen7h5rs]{padding-block:var(--space-4)}}