@font-face{font-family:Arimo;src:url(arimo-latin.woff2) format('woff2');font-style:normal;font-weight:400 700;font-display:swap}
:root{color-scheme:light;--ink:#25282d;--muted:#737984;--paper:#fff;--soft:#f6f7fa;--line:#e3e5e9;--blue:#2557ff;--hero:#25282d}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arimo,Helvetica,Arial,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #7595ff;outline-offset:4px}button{color:inherit}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip{position:fixed;left:12px;top:-80px;background:var(--paper);padding:12px;z-index:100}.skip:focus{top:8px}
.site-header{height:50px;position:fixed;inset:0 0 auto;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:0 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 1px 3px #1724510a}.logo{display:flex;gap:12px;align-items:center;font-size:20px;font-weight:700;white-space:nowrap}.logo img{width:36px;height:36px;border-radius:8px}.search{width:40%;max-width:520px;display:flex;gap:9px;align-items:center;background:var(--soft);border:1px solid var(--line);border-radius:24px;padding:5px 12px;color:#969ba5}.search svg{width:17px;height:17px}.search input{border:0;background:transparent;width:100%;outline:none;font-size:12px;color:var(--ink)}.search kbd{font-size:10px;border-radius:4px;background:var(--paper);padding:2px 5px}.header-actions{display:flex;gap:10px}.theme-toggle,.mobile-menu{height:34px;min-width:36px;display:grid;place-items:center;border:1px solid var(--line);background:var(--soft);border-radius:20px}.theme-toggle svg{width:19px;height:19px}.mobile-menu{display:none}
.rail{position:fixed;inset:50px auto 0 0;width:78px;z-index:10;border-right:1px solid var(--line);background:var(--paper);padding:8px 0;overflow:auto}.rail a,.rail summary{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;padding:12px 3px;font-size:12px;cursor:pointer;list-style:none}.rail svg{color:#a6a9b1}.rail a:first-child svg{color:var(--blue)}.rail a:hover,.rail summary:hover{background:var(--soft);color:var(--blue)}.rail details a{font-size:11px;padding:10px 3px}.rail summary::-webkit-details-marker{display:none}
.page{margin-left:78px;padding-top:50px;position:relative}.page:before{content:'';position:absolute;top:50px;left:0;right:0;height:1050px;pointer-events:none;z-index:-1;background:linear-gradient(#2557ff09 1px,transparent 1px),linear-gradient(90deg,#2557ff09 1px,transparent 1px),linear-gradient(135deg,#2557ff08,transparent 64%);background-size:68px 68px,68px 68px,auto;mask-image:linear-gradient(#000 62%,transparent)}.trail{height:68px;width:min(calc(100% - 64px),1280px);margin:auto;display:flex;gap:12px;align-items:center;color:var(--muted);font-size:11px}.trail svg{width:12px;height:12px}.trail a{display:flex;align-items:center;gap:6px}.cover{width:min(calc(100% - 64px),1280px);margin:0 auto;background:var(--hero);color:white;border-radius:9px;overflow:hidden}.hero{position:relative;margin:0;aspect-ratio:1672/941}.hero>img{display:block;width:100%;height:100%;object-fit:cover}.hero:after{content:'';position:absolute;inset:30% 0 0;background:linear-gradient(transparent,#25282dcc 64%,#25282d)}.hero figcaption{position:absolute;right:12px;top:10px;font-size:10px;background:#151821b0;padding:4px 6px;border-radius:4px;z-index:1}.cover-heading{position:relative;z-index:2;display:grid;gap:20px;margin-top:calc(-1 * clamp(160px,17vw,260px));min-height:clamp(160px,17vw,260px);align-content:end;padding:20px clamp(24px,3vw,48px) clamp(24px,3vw,48px)}.kicker{font-size:12px;letter-spacing:1.7px;font-weight:700;display:flex;align-items:center;gap:10px}.kicker:before{content:'';height:3px;width:24px;background:var(--blue)}h1{margin:0;max-width:23ch;font-size:clamp(2.15rem,1.1rem + 4.4vw,5rem);font-weight:700;line-height:1.02;letter-spacing:-.04em;text-wrap:balance;overflow-wrap:anywhere}.reading{width:min(800px,calc(100% - 64px));margin-left:auto;margin-right:auto}.intro{margin-top:clamp(20px,2vw,32px)}.dek{margin:0;font-size:clamp(18px,.9375rem + .75vw,24px);line-height:1.5;color:var(--muted)}.byline{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:24px 0 22px;padding-bottom:20px;border-bottom:1px solid var(--line);font-size:13px}.identity{display:flex;gap:12px;align-items:center}.avatar{display:grid;place-items:center;background:var(--blue);color:white;border-radius:50%;width:44px;height:44px;font-size:23px;font-weight:700}.identity strong{display:block;margin-bottom:5px}.identity small{color:var(--muted);font-size:12px}.timing{text-align:right;line-height:1.8;color:var(--muted);font-size:12px}
.quick{border:1px solid var(--line);border-top:3px solid var(--blue);border-radius:12px;overflow:hidden;background:var(--paper);box-shadow:0 2px 5px #131c3206;margin-top:16px}.quick h2{font-size:13px;letter-spacing:1.2px;padding:17px 20px;margin:0;border-bottom:1px solid var(--line)}.quick ol{margin:0;padding:0;list-style:none}.quick li{display:grid;grid-template-columns:36px 1fr;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line);font-size:16px;line-height:1.5}.quick li:last-child{border:0}.quick .number{font-weight:700;color:var(--blue);font-size:13px;padding-top:3px}.share{display:flex;gap:16px;align-items:center;border-bottom:1px solid var(--line);padding:20px 0;margin-bottom:26px}.share-label{font-size:11px;color:var(--muted);letter-spacing:1px;margin-right:auto}.share a,.share button{border:0;background:none;display:grid;place-items:center;padding:3px;font-size:13px;font-weight:700}.share svg{width:18px;height:18px}.share button{min-width:44px}#copy-status{font-size:12px;color:var(--blue)}.article-body{font-size:19px;line-height:1.75}.article-body p{margin:0 0 24px}.article-body h2{font-size:30px;line-height:1.2;letter-spacing:-.025em;margin:42px 0 20px;scroll-margin-top:80px}.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.article-body blockquote{margin:32px 0;padding:8px 0 8px 24px;border-left:3px solid var(--blue);font-size:26px;line-height:1.45;font-weight:700;letter-spacing:-.02em}.project-box{border:1px solid var(--line);background:var(--soft);border-radius:12px;margin:36px 0;padding:26px}.project-box .kicker{color:var(--muted);font-size:11px;letter-spacing:1px}.project-box h2{font-size:26px;letter-spacing:-.02em;margin:16px 0 12px}.project-box p{font-size:16px;line-height:1.6;color:var(--muted)}.buttons{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.button{background:var(--blue);color:#fff;border:1px solid var(--blue);border-radius:6px;padding:13px 18px;font-size:14px;font-weight:700}.button.secondary{background:var(--paper);color:var(--ink);border-color:var(--line)}.tags{display:flex;gap:8px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px;margin-bottom:26px;font-size:12px}.tags span{background:var(--soft);padding:7px 10px;border-radius:5px}.disclosure{font-size:12px;line-height:1.7;color:var(--muted);margin:28px 0 60px}.disclosure strong{color:var(--ink)}
.site-footer{border-top:1px solid var(--line);padding:36px 32px 20px;background:var(--soft)}.footer-top{display:flex;justify-content:space-between;align-items:center;gap:20px;max-width:1280px;margin:auto}.footer-top p{font-size:14px;color:var(--muted)}.footer-grid{max-width:1280px;margin:35px auto;display:grid;grid-template-columns:repeat(4,1fr);gap:25px}.footer-grid h3{font-size:11px;letter-spacing:1px;margin:0 0 16px}.footer-grid a{display:block;font-size:12px;color:var(--muted);margin:12px 0}.footer-bottom{max-width:1280px;margin:auto;border-top:1px solid var(--line);padding-top:20px;display:flex;gap:16px;justify-content:space-between;font-size:11px;color:var(--muted)}.dark{color-scheme:dark;--paper:#181b21;--ink:#f2f3f5;--muted:#a6abb6;--soft:#222630;--line:#363b46}.dark .logo img{background:white}
@media(min-width:1600px){.cover-heading{margin-top:-260px;min-height:260px}}@media(max-width:800px){.cover,.trail{width:calc(100% - 40px)}.reading{width:calc(100% - 40px)}.footer-grid{grid-template-columns:repeat(2,1fr)}.search{width:36%}.cover-heading{gap:16px}.article-body{font-size:18px}}@media(max-width:640px){.site-header{height:56px;padding:0 14px}.logo{font-size:18px;gap:9px}.logo img{width:32px;height:32px}.search{display:none}.mobile-menu{display:grid}.rail{display:none;top:56px;width:100%;height:auto;max-height:calc(100dvh - 56px);bottom:auto;padding:10px;box-shadow:0 12px 20px #0001}.rail.open{display:grid;grid-template-columns:repeat(3,1fr)}.rail details{display:contents}.rail details summary{display:none}.rail details a{display:flex}.page{margin-left:0;padding-top:56px}.trail{height:54px;width:calc(100% - 32px)}.cover{width:calc(100% - 32px)}.hero{aspect-ratio:1.35}.cover-heading{padding:20px;margin-top:-60px;min-height:60px;background:linear-gradient(transparent,var(--hero) 60px)}h1{font-size:clamp(32px,8vw,46px);line-height:1.06;letter-spacing:-.035em}.kicker{font-size:10px;letter-spacing:1.2px}.reading{width:calc(100% - 40px)}.intro{margin-top:22px}.dek{font-size:19px;line-height:1.5}.byline{gap:10px;align-items:flex-start}.identity{gap:9px}.avatar{width:38px;height:38px;font-size:20px}.identity strong{font-size:12px}.identity small{font-size:11px}.timing{font-size:10px;flex-shrink:0}.quick h2{padding:15px 16px}.quick li{padding:14px 16px;gap:6px;grid-template-columns:25px 1fr;font-size:15px}.article-body{font-size:18px;line-height:1.7}.article-body h2{font-size:27px}.article-body blockquote{font-size:23px}.share{gap:14px}.project-box{padding:22px}.buttons{flex-direction:column}.button{text-align:center}.site-footer{padding:28px 20px 20px}.footer-top{display:block}.footer-bottom{flex-wrap:wrap;line-height:1.6}.hero figcaption{font-size:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.site-header,.rail,.share,.site-footer{display:none}.page{margin:0;padding:0}.cover,.reading{width:100%}.hero{max-height:250px}.cover-heading{margin:0;color:#000;background:#fff}h1{font-size:36px}.cover{background:#fff}.button{color:#000;background:#fff}}