:root{--hue:75;--accent:oklch(.55 .15 var(--hue));--accent-hover:oklch(.47 .16 var(--hue));--accent-faint:oklch(.96 .03 var(--hue));--bg:oklch(.99 .005 var(--hue));--surface:#fff;--text:oklch(.25 .02 var(--hue));--text-muted:oklch(.52 .02 var(--hue));--border:oklch(.9 .015 var(--hue));--radius:14px;--content-width:44rem}@supports (color:lab(0% 0 0)){:root{--surface:lab(100% 0 0)}}@media (prefers-color-scheme:dark){:root{--accent:oklch(.78 .13 var(--hue));--accent-hover:oklch(.86 .11 var(--hue));--accent-faint:oklch(.28 .04 var(--hue));--bg:oklch(.18 .015 var(--hue));--surface:oklch(.22 .018 var(--hue));--text:oklch(.93 .012 var(--hue));--text-muted:oklch(.72 .02 var(--hue));--border:oklch(.32 .02 var(--hue))}}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);letter-spacing:.01em;-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Yu Gothic UI,Meiryo,sans-serif;font-size:16px;line-height:1.9}a{color:var(--accent);text-underline-offset:3px}a:hover{color:var(--accent-hover)}.container{width:100%;max-width:var(--content-width);margin-inline:auto;padding-inline:20px}.site-header{z-index:10;background:color-mix(in oklab, var(--bg) 88%, transparent);-webkit-backdrop-filter:saturate(180%)blur(12px);backdrop-filter:saturate(180%)blur(12px);border-bottom:1px solid var(--border);position:sticky;top:0}.site-header .container{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;min-height:60px;display:flex}.brand{color:var(--text);letter-spacing:.02em;align-items:center;gap:10px;font-size:1.02rem;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{background:linear-gradient(140deg, var(--accent), oklch(.62 .16 calc(var(--hue) + 40)));border-radius:8px;flex:none;width:26px;height:26px}.site-nav{gap:4px;font-size:.86rem;display:flex}.site-nav a{color:var(--text-muted);white-space:nowrap;border-radius:999px;padding:6px 10px;text-decoration:none}.site-nav a:hover{color:var(--accent);background:var(--accent-faint)}.hero{text-align:center;padding:64px 0 36px}.hero h1{letter-spacing:.01em;margin:0 0 14px;font-size:clamp(1.9rem,5.5vw,2.7rem);line-height:1.35}.hero p{max-width:34rem;color:var(--text-muted);margin:0 auto;font-size:1rem}.page-head{border-bottom:1px solid var(--border);margin-bottom:8px;padding:52px 0 12px}.page-head h1{margin:0;font-size:clamp(1.6rem,4.5vw,2.1rem);line-height:1.4}.prose{overflow-wrap:anywhere;padding:28px 0 72px}.prose>:first-child{margin-top:0}.prose h2{letter-spacing:.01em;margin:3rem 0 1rem;padding-top:.2rem;font-size:1.35rem;line-height:1.5}.prose h3{color:var(--accent-hover);margin:2.2rem 0 .8rem;font-size:1.1rem;line-height:1.6}@media (prefers-color-scheme:dark){.prose h3{color:var(--accent)}}.prose h4{margin:1.8rem 0 .6rem;font-size:1rem}.prose p{margin:1.1rem 0}.prose ul,.prose ol{margin:1.1rem 0;padding-left:1.5rem}.prose li{margin:.5rem 0;padding-left:.15rem}.prose li::marker{color:var(--accent);font-variant-numeric:tabular-nums}.prose strong{font-weight:700}.prose hr{border:0;border-top:1px solid var(--border);margin:2.6rem 0}.prose blockquote{border-left:3px solid var(--accent);background:var(--accent-faint);border-radius:0 var(--radius) var(--radius) 0;padding:2px 0 2px 18px;padding-block:10px;margin:1.6rem 0;padding-right:16px}.prose blockquote p{margin:.5rem 0}.prose figure{margin:1.6rem 0;overflow-x:auto}.prose table{border-collapse:collapse;width:100%;font-size:.92rem;line-height:1.7}.prose th,.prose td{border:1px solid var(--border);text-align:left;vertical-align:top;padding:9px 12px}.prose th{background:var(--accent-faint);font-weight:700}.prose code{background:var(--accent-faint);border-radius:6px;padding:2px 6px;font-size:.9em}.prose pre{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;overflow-x:auto}.prose pre code{background:0 0;padding:0}.site-footer{border-top:1px solid var(--border);color:var(--text-muted);padding:34px 0 44px;font-size:.85rem}.site-footer nav{flex-wrap:wrap;gap:8px 20px;margin-bottom:16px;display:flex}.site-footer a{color:var(--text-muted);text-decoration:none}.site-footer a:hover{color:var(--accent);text-decoration:underline}.not-found{text-align:center;padding:90px 0}.not-found h1{margin-bottom:8px;font-size:2rem}