:root{
  --ink:#0B1520; --ink-2:#0F1C2A; --ink-3:#132639; --bone:#F6F5F2; --muted:#93A4B3;
  --signal:#2FC4D6; --signal-deep:#0F6B78; --ca:#35588C; --im:#564E8A; --ii:#1B6843;
  --line:rgba(246,245,242,.13); --line-2:rgba(246,245,242,.07);
  --wrap:1280px; --gut:clamp(20px,4vw,48px);
  --s2:16px; --s3:24px; --s4:40px; --s5:72px; --s6:112px;
  --mono:"Space Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Archivo",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --ease-out:cubic-bezier(.23,1,.32,1); --ease-in-out:cubic-bezier(.77,0,.175,1); --ease-drawer:cubic-bezier(.32,.72,0,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg,var(--ink));color:var(--bone);font-family:var(--sans);font-size:17px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:clip;transition:background-color .5s linear}
h1,h2,h3,p,ul,ol,figure,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit}
svg{max-width:100%}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--signal);outline-offset:4px}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:20px;top:12px;z-index:99;background:var(--signal);color:#04222A;padding:10px 16px;font-weight:700;border-radius:6px}
.tag{font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase}
.huge{font-weight:800;font-stretch:118%;letter-spacing:-.035em;line-height:.92;text-transform:uppercase}
.display{font-weight:700;font-stretch:105%;letter-spacing:-.022em;line-height:1.02}
.pupil{transform-box:fill-box;transform-origin:center;will-change:transform}
.lid{transform-box:fill-box;transform:scaleY(0);will-change:transform}
.lid-t{transform-origin:50% 0}
.lid-b{transform-origin:50% 100%}
.ch{display:inline-block;white-space:pre;text-align:center}

/* header */
.hd{position:fixed;inset:0 0 auto;z-index:50;border-bottom:1px solid transparent;transition:background .3s ease,border-color .3s ease,transform .32s var(--ease-out)}
.hd.stuck{background:rgba(11,21,32,.86);backdrop-filter:blur(14px);border-bottom-color:var(--line-2)}
.hd.away{transform:translateY(-100%)}
.hd-in{display:flex;align-items:center;gap:var(--s4);height:76px}
.brand{display:flex;text-decoration:none}
.lockup{height:26px;width:auto;display:block;color:var(--bone);--pupil:var(--signal);--tile-ring:var(--ink)}
.lockup .word{transition:opacity .4s ease}
.nav{display:flex;gap:26px;margin-left:auto;font:600 13px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase}
.nav a{position:relative;text-decoration:none;opacity:.72;transition:opacity .2s ease}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:2px;background:var(--signal);transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease-out)}
.nav a:hover,.nav a:focus-visible{opacity:1}
.nav a:hover::after,.nav a:focus-visible::after{transform:scaleX(1)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;font:700 14px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;text-decoration:none;cursor:pointer;border:2px solid transparent;border-radius:0;background:none;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .18s var(--ease-out);will-change:transform}
.btn:active{transform:scale(.97)}
.btn-fill{background:var(--signal);color:#04222A}
.btn-fill:hover{background:var(--bone)}
.btn-line{border-color:currentColor}
.btn-line:hover{background:var(--bone);color:var(--ink);border-color:var(--bone)}
.hd .btn{min-height:44px;padding:0 18px}
.burger{display:none;margin-left:auto;background:none;border:2px solid rgba(246,245,242,.3);color:var(--bone);width:46px;height:46px;cursor:pointer}
.prog{position:fixed;inset:0 0 auto;height:3px;background:var(--signal);transform:scaleX(0);transform-origin:left;z-index:60;will-change:transform}

/* reveal */
.js [data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .8s var(--ease-out);transition-delay:var(--d,0ms)}
.js [data-reveal].in{opacity:1;transform:none}
.js [data-reveal="clip"]{transform:none;clip-path:inset(0 100% 0 0);transition:clip-path .7s var(--ease-out),opacity .4s ease}
.js [data-reveal="clip"].in{clip-path:inset(0 0 0 0)}
.js [data-reveal="up"]{transform:translateY(40px)}
.js [data-reveal="scale"]{transform:scale(.96)}
.wd{display:inline-block;white-space:nowrap}
.js .stagger .wd{opacity:0;transform:translateY(.5em) rotateX(-40deg);transform-origin:50% 100%}
.js .stagger.up .wd{opacity:1;transform:none;transition:opacity .5s ease,transform .8s cubic-bezier(.16,.9,.3,1);transition-delay:calc(var(--i) * 60ms)}
.ch{display:inline-block;white-space:pre}
.num{font-variant-numeric:tabular-nums}

/* intro: the eye opens */
.intro{position:fixed;inset:0;z-index:90;pointer-events:none}
.intro-bg{position:absolute;inset:0;background:var(--ink);transition:clip-path .8s var(--ease-in-out)}
.intro.out .intro-bg{clip-path:inset(0 0 100% 0)}
.intro-mark{position:absolute;left:50%;top:50%;width:min(44vw,260px);translate:-50% -50%;color:var(--bone);--pupil:var(--signal);--tile-ring:var(--ink);transform-origin:0 0}
.intro-cap{position:absolute;left:50%;top:calc(50% + min(26vw,160px));translate:-50% 0;font:400 11px/1.8 var(--mono);letter-spacing:.24em;text-transform:uppercase;color:var(--muted);white-space:nowrap;transition:opacity .3s ease}
.intro.out .intro-cap{opacity:0}
.intro .beam{position:absolute;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(47,196,214,.7),transparent);animation:beam 1.6s var(--ease-in-out) infinite;opacity:.7}
.intro.out .beam{display:none}
@keyframes beam{from{top:6%}to{top:94%}}
html.introing{overflow:hidden}
html.introing .hd .lockup{opacity:0}

/* cursor */
.cur,.cur-p{position:fixed;top:0;left:0;z-index:70;pointer-events:none;border-radius:50%;will-change:transform}
.cur{width:34px;height:34px;margin:-17px 0 0 -17px;mix-blend-mode:difference;transition:width .22s var(--ease-out),height .22s var(--ease-out),margin .22s var(--ease-out),opacity .2s ease}
.cur i{position:absolute;inset:0;border-radius:50%;border:1.5px solid rgba(246,245,242,.9);transition:transform .13s var(--ease-out),background .2s ease}
.cur.hot{width:58px;height:58px;margin:-29px 0 0 -29px}
.cur.hot i{background:rgba(246,245,242,.08)}
.cur.down i{transform:scaleY(.12)}
.cur-p{width:7px;height:7px;margin:-3.5px 0 0 -3.5px;background:var(--signal);transition:transform .13s var(--ease-out)}
.cur.eye{width:40px;height:40px;margin:-20px 0 0 -20px}
.cur.eye.hot{width:64px;height:64px;margin:-32px 0 0 -32px}
.cur.hide,.cur-p.hide{opacity:0}
@media (hover:hover) and (pointer:fine){.js.fine body,.js.fine a,.js.fine button{cursor:none}}

/* ticker */
.ticker{border-block:1px solid var(--line);overflow:hidden;padding:16px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.ticker ul{display:flex;gap:44px;width:max-content;will-change:transform}
.ticker li{font:700 14px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.ticker li::before{content:"◆ ";color:var(--signal);font-size:9px;vertical-align:2px}

/* footer */
footer{padding:var(--s5) 0 var(--s4);color:var(--muted);font-size:14px;position:relative}
.ft-in{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr) auto;gap:var(--s4);align-items:start}
.ft-links{display:grid;gap:8px 20px;grid-template-columns:repeat(2,max-content)}
.ft-links a{text-decoration:none}
.ft-links a:hover{color:var(--bone)}
.tagblock{width:min(240px,60vw);height:auto;color:var(--bone);display:block}
.ft-note{margin-top:var(--s4);padding-top:var(--s3);border-top:1px solid var(--line-2);font:400 11px/1.6 var(--mono);letter-spacing:.12em;text-transform:uppercase}

@media (max-width:960px){
  .nav,.hd .btn{display:none}
  .burger{display:block}
  .ft-in{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .js [data-reveal],.js .stagger .wd{opacity:1;transform:none;clip-path:none}
  .intro,.cur,.cur-p,.prog{display:none}
  .js.fine body,.js.fine a,.js.fine button{cursor:auto}
}
@font-face{font-family:"Archivo";src:url(fonts/archivo-var.woff2) format("woff2");font-weight:100 900;font-stretch:62% 125%;font-style:normal;font-display:swap}@font-face{font-family:"Space Mono";src:url(fonts/spacemono-400.woff2) format("woff2");font-weight:400;font-stretch:normal;font-style:normal;font-display:swap}@font-face{font-family:"Space Mono";src:url(fonts/spacemono-700.woff2) format("woff2");font-weight:700;font-stretch:normal;font-style:normal;font-display:swap}
/* ---- the reading surface: light by default, dark on request; the chrome stays on Ink ---- */
:root{--paper:#fff;--paper-2:#F6F5F2;--paper-3:#ECEAE5;--text:#0B1520;--text-2:#3D4F5E;--text-3:#66798A;--rule:rgba(11,21,32,.14);--rule-2:rgba(11,21,32,.07);--link:#0F6B78;--code:#F1F0EC;--warn:#B8591A}
html[data-scheme=dark]{--paper:#0F1C2A;--paper-2:#132639;--paper-3:#182F45;--text:#F6F5F2;--text-2:#B9C4CD;--text-3:#93A4B3;--rule:rgba(246,245,242,.14);--rule-2:rgba(246,245,242,.07);--link:#2FC4D6;--code:#0B1520;--warn:#F0A05A}
html[data-scheme=light]{color-scheme:light}
html[data-scheme=dark]{color-scheme:dark}
html{scroll-padding-top:96px}
/* the standard cursor: BASE_CSS hides it on mouse devices for the marketing site's drawn cursor, which this site does not use */
@media (hover:hover) and (pointer:fine){.js.fine body{cursor:auto}.js.fine a,.js.fine button,.js.fine summary,.js.fine label{cursor:pointer}.js.fine input,.js.fine textarea{cursor:text}}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.hd{background:var(--ink);border-bottom:1px solid var(--line-2)}
.hd.stuck{background:var(--ink)}
.hd.away{transform:none}
.hd-in{gap:var(--s3)}
.hd .lockup{height:30px}
.hd-guides{font:700 12px/1 var(--mono);letter-spacing:.22em;text-transform:uppercase;color:var(--signal);padding-left:18px;border-left:1px solid var(--line);white-space:nowrap}
.nav{gap:22px}
.nav a.on{opacity:1}
.nav a.on::after{transform:scaleX(1)}
.tools{display:flex;gap:8px;margin-left:auto}
.nav+.tools{margin-left:0}
.ibtn{width:44px;height:44px;border:1px solid var(--line);background:none;color:var(--bone);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;border-radius:4px}
.ibtn:hover{border-color:var(--signal)}
.ibtn svg{width:20px;height:20px}
.ibtn .moon,html[data-scheme=dark] .ibtn .sun{display:none}
html[data-scheme=dark] .ibtn .moon{display:block}
.side-btn{display:none}
.scrim{display:none}

/* ---- shell: sidebar + document ---- */
.shell{display:grid;grid-template-columns:300px minmax(0,1fr);padding-top:76px;min-height:100vh}
.shell.one{grid-template-columns:minmax(0,1fr)}
.side{position:sticky;top:76px;height:calc(100vh - 76px);overflow:auto;padding:var(--s3) 18px var(--s5);border-right:1px solid var(--line-2);background:var(--ink);scrollbar-width:thin}
.doc{background:var(--paper);color:var(--text);min-width:0}
.doc a{color:var(--link)}
.doc-in{max-width:1120px;margin:0 auto;padding:var(--s4) var(--gut) var(--s6)}
.doc-g{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:var(--s5);align-items:start}

/* ---- search box ---- */
.search{display:flex;border:1px solid var(--line);background:var(--ink-2);border-radius:4px}
.search input{flex:1;min-width:0;background:none;border:0;color:var(--bone);padding:12px 14px;font:inherit;font-size:15px;outline-offset:-3px}
.search input::placeholder{color:var(--muted)}
.search button{background:none;border:0;border-left:1px solid var(--line);color:var(--muted);width:46px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.search button:hover{color:var(--signal)}
.search svg{width:18px;height:18px}
.search.big{max-width:640px;margin-top:var(--s4)}
.search.big input{padding:18px 20px;font-size:17px}
.search.big button{width:60px}

/* ---- the tree ---- */
.tree-nav{margin-top:var(--s3);font-size:14.5px}
.tree-home{display:block;font:700 12px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--signal);text-decoration:none;padding:8px 0 14px}
.tree-home:hover{color:var(--bone)}
.tree,.tree ul{list-style:none;margin:0;padding:0}
.tree ul{padding-left:12px;border-left:1px solid var(--line-2);margin:2px 0 4px 8px}
.tree li{margin:1px 0}
.tree a{display:block;padding:7px 10px;color:var(--muted);text-decoration:none;border-radius:4px;line-height:1.35}
.tree a:hover{color:var(--bone);background:var(--ink-2)}
.tree a[aria-current=page]{color:var(--bone);background:var(--ink-3);box-shadow:inset 3px 0 0 var(--signal)}
.tree summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px;padding:8px 10px;color:var(--bone);font-weight:600;border-radius:4px;line-height:1.35}
.tree summary::-webkit-details-marker{display:none}
.tree summary:hover{background:var(--ink-2)}
.tree summary::before{content:"";width:7px;height:7px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-45deg);transition:transform .2s var(--ease-out);flex:none;margin-right:2px}
.tree details[open]>summary::before{transform:rotate(45deg)}
.tree .n{margin-left:auto;font:400 11px/1 var(--mono);color:var(--muted);padding-left:8px}
.side-links{margin-top:var(--s4);padding-top:var(--s3);border-top:1px solid var(--line-2);display:none}
.side-links a{display:block;padding:8px 10px;color:var(--muted);text-decoration:none;font:600 12px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase}
.side-prods{margin-top:var(--s3)}
.side-prods a{display:block;padding:8px 10px;color:var(--bone);text-decoration:none;font-weight:600;border-radius:4px}
.side-prods a:hover,.side-prods a.on{background:var(--ink-2)}

/* ---- document header ---- */
.crumbs{font:400 11.5px/1.6 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}
.crumbs ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0}
.crumbs li+li::before{content:"›";margin-right:6px}
.crumbs a{color:inherit;text-decoration:none}
.crumbs a:hover{color:var(--link)}
.art-h{margin-top:var(--s3);padding-bottom:var(--s3);border-bottom:1px solid var(--rule)}
.ptag{font:700 11px/1 var(--mono);letter-spacing:.22em;text-transform:uppercase;color:#fff;background:var(--pc,var(--signal-deep));display:inline-block;padding:6px 10px;border-radius:3px}
h1.title{font-size:clamp(30px,3.4vw,44px);font-weight:700;font-stretch:105%;letter-spacing:-.02em;line-height:1.08;margin-top:16px;color:var(--text)}
.lede{font-size:19px;line-height:1.5;color:var(--text-2);margin-top:14px;max-width:64ch}
.meta{margin-top:16px;font:400 12px/1.7 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-3)}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:var(--s3)}
.abtn{display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:0 14px;border:1px solid var(--rule);background:none;color:var(--text-2);font:600 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;text-decoration:none;cursor:pointer;border-radius:4px}
.abtn:hover{border-color:var(--link);color:var(--link)}
.doc .abtn{color:var(--text-2)}
.doc .abtn:hover{color:var(--link)}
.abtn svg{width:15px;height:15px}

/* ---- prose ---- */
.prose{max-width:72ch;font-size:17.5px;line-height:1.65;color:var(--text)}
.prose>*+*{margin-top:1em}
.prose h2{font-size:clamp(22px,2.2vw,28px);font-weight:700;font-stretch:105%;letter-spacing:-.02em;line-height:1.2;margin-top:2em}
.prose h3{font-size:19px;font-weight:700;line-height:1.3;margin-top:1.6em}
.prose h4{font-size:17px;font-weight:700;margin-top:1.4em}
.prose h2:first-child,.prose h3:first-child{margin-top:0}
.prose ul,.prose ol{padding-left:1.5em}
.prose ul{list-style:none;padding-left:0}
.prose ul>li{position:relative;padding-left:22px}
.prose ul>li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:10px;background:var(--link);clip-path:polygon(0 0,100% 50%,0 100%)}
.prose ol{list-style:decimal}
.prose li+li{margin-top:.45em}
.prose li>ul,.prose li>ol{margin-top:.45em}
.prose img{max-width:100%;height:auto;display:block;border:1px solid var(--rule);background:#fff}
.prose a.zoom{display:block;max-width:100%}
.prose figure img{margin:0}
.prose figcaption{font-size:14px;color:var(--text-3);margin-top:8px}
.prose .tbl{overflow-x:auto}
.prose table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.45}
.prose th,.prose td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--rule);vertical-align:top}
.prose th{font:700 11px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);background:var(--paper-2)}
.prose blockquote{border-left:3px solid var(--link);padding:4px 0 4px 18px;color:var(--text-2);font-style:italic}
.prose code,.prose kbd{font-family:var(--mono);font-size:.86em;background:var(--code);padding:2px 6px;border-radius:3px}
.prose kbd{border:1px solid var(--rule);border-bottom-width:2px}
.prose pre{background:var(--code);padding:16px;overflow-x:auto;font-size:14px;line-height:1.5}
.prose pre code{background:none;padding:0}
.prose dl{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:8px 20px}
.prose dt{font-weight:700}
.prose dd{margin:0}
.prose hr{border:0;border-top:1px solid var(--rule);margin:2em 0}
.prose .portal::after{content:" ↗";font-size:.8em}
.callout{border-left:3px solid var(--link);background:var(--paper-2);padding:14px 18px 16px;border-radius:0 4px 4px 0}
.callout.warning{border-color:var(--warn)}
.callout.tip{border-color:var(--ii)}
.callout>*+*{margin-top:.6em}
.callout::before{display:block;font:700 11px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--text-2);margin-bottom:8px}
.callout.note::before{content:"Note"}
.callout.warning::before{content:"Warning";color:var(--warn)}
.callout.tip::before{content:"Tip"}
.embed{display:flex;align-items:center;justify-content:center;aspect-ratio:16/9;background:var(--ink);color:var(--bone);text-decoration:none;position:relative;border-radius:4px;overflow:hidden}
.doc .embed{color:var(--bone)}
.embed-play{display:inline-flex;align-items:center;gap:12px;font:700 13px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase}
.embed-play::before{content:"";width:0;height:0;border-left:16px solid var(--signal);border-top:10px solid transparent;border-bottom:10px solid transparent}
.embed-play::after{content:"Loads from YouTube or Vimeo when you press play";position:absolute;left:0;right:0;bottom:14px;text-align:center;font:400 11px/1.4 var(--mono);letter-spacing:.06em;text-transform:none;color:var(--muted)}
.embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ---- on this page ---- */
.toc{position:sticky;top:96px;font-size:13.5px}
.toc summary{font:700 11px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--text-3);cursor:pointer;list-style:none;padding:4px 0 12px}
.toc summary::-webkit-details-marker{display:none}
.toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--rule)}
.toc li a{display:block;padding:5px 0 5px 14px;color:var(--text-2);text-decoration:none;border-left:2px solid transparent;margin-left:-1px;line-height:1.35}
.toc li.l3 a{padding-left:26px;font-size:12.5px}
.toc li.l4 a{padding-left:38px;font-size:12.5px}
.toc a:hover,.toc a.on{color:var(--link);border-left-color:var(--link)}

/* ---- after the article ---- */
.aft{margin-top:var(--s5);display:grid;gap:var(--s4);max-width:72ch}
.sec-h{font:700 11px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--text-3);margin-bottom:12px}
.att{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.att a{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--rule);text-decoration:none;color:var(--text);border-radius:4px}
.att a:hover{border-color:var(--link)}
.att .k{font:700 10px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:#fff;background:var(--signal-deep);padding:6px 8px;border-radius:3px;flex:none}
.att .s{margin-left:auto;font:400 12px/1 var(--mono);color:var(--text-3);white-space:nowrap;padding-left:12px}
.rel{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.rel a{text-decoration:none;font-weight:600}
.rel a:hover{text-decoration:underline}
.fb{border:1px solid var(--rule);padding:var(--s3);display:flex;flex-wrap:wrap;gap:12px;align-items:center;border-radius:4px}
.fb p{margin:0 auto 0 0;font-weight:600}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:var(--s5);padding-top:var(--s3);border-top:1px solid var(--rule);max-width:72ch}
.pn a{display:block;text-decoration:none;color:var(--text);padding:12px 14px;border:1px solid var(--rule);border-radius:4px;font-weight:600}
.pn a:hover{border-color:var(--link);color:var(--link)}
.pn .l{display:block;font:400 10.5px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--text-3);margin-bottom:8px}
.pn .next{text-align:right;grid-column:2}

/* ---- lists and cards on index pages ---- */
.lead{font-size:18px;line-height:1.55;color:var(--text-2);max-width:64ch;margin-top:14px}   /* not .intro: BASE_CSS uses that for the opening-eye overlay */
.was{margin-top:10px;font:400 12px/1.6 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-3)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px;margin-top:var(--s3)}
.card{display:block;text-decoration:none;color:var(--text);border:1px solid var(--rule);padding:var(--s3);border-radius:4px;transition:border-color .2s ease,transform .22s var(--ease-out)}
.card:hover{border-color:var(--link);transform:translateY(-2px)}
.card b{display:block;font-size:19px;font-weight:700;font-stretch:105%;line-height:1.25}
.card p{margin-top:8px;color:var(--text-2);font-size:14.5px;line-height:1.45}
.card .n{display:block;margin-top:14px;font:400 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.blk{margin-top:var(--s5)}
.blk h2{font-size:clamp(20px,2vw,26px);font-weight:700;font-stretch:105%;letter-spacing:-.02em}
.alist{list-style:none;margin:var(--s2) 0 0;padding:0;max-width:72ch}
.alist li{border-top:1px solid var(--rule);padding:16px 0}
.alist li:last-child{border-bottom:1px solid var(--rule)}
.alist a{font-size:18px;font-weight:600;text-decoration:none;color:var(--text)}
.alist a:hover{color:var(--link)}
.alist p{margin-top:6px;color:var(--text-2);font-size:15px;line-height:1.45}
.alist .m{display:block;margin-top:8px;font:400 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}
.rn-year{font:700 12px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--text-3);margin-top:var(--s4)}
.latest{border:1px solid var(--rule);padding:var(--s3);border-radius:4px;margin-top:var(--s4);max-width:72ch}
.latest .sec-h{margin-bottom:8px}
.latest b{font-size:20px;font-weight:700}
.latest a{text-decoration:none}
.latest p{margin-top:6px;color:var(--text-2)}
.feedlink{font:400 12px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase}

/* ---- home (on Ink) ---- */
.home{padding-top:76px}
.hero{padding:var(--s5) 0 var(--s5)}
.hero h1{font-size:clamp(34px,5vw,64px);max-width:15ch;margin-top:16px}
.hero .lede{color:var(--muted);max-width:56ch}
.ptiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;margin-top:var(--s3)}
.ptile{display:block;text-decoration:none;color:var(--bone);background:var(--ink-2);border:1px solid var(--line);padding:var(--s4) var(--s3);transition:border-color .2s ease,transform .22s var(--ease-out)}
.ptile:hover{border-color:var(--pc,var(--signal));transform:translateY(-3px)}
.ptile .plock{height:56px;width:auto;display:block;color:var(--bone);--pupil:var(--pc,var(--signal));--tile-ring:var(--ink-2)}
.ptile .pname{font-size:28px;font-weight:700;font-stretch:105%}
.ptile p{margin-top:16px;color:var(--muted);line-height:1.5}
.ptile .m{display:block;margin-top:18px;font:400 11px/1.7 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--signal)}
.hsec{padding:var(--s5) 0;border-top:1px solid var(--line-2)}
.hsec h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;font-stretch:105%;letter-spacing:-.02em}
.rlist{list-style:none;margin:var(--s3) 0 0;padding:0;display:grid;gap:1px;background:var(--line-2);border:1px solid var(--line-2);max-width:760px}
.rlist li{background:var(--ink)}
.rlist a{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:baseline;padding:14px 18px;text-decoration:none;color:var(--bone)}
.rlist a:hover{background:var(--ink-2)}
.rlist .v{font:700 15px/1 var(--mono)}
.rlist .p{color:var(--muted)}
.rlist .d{font:400 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:var(--s3)}
.cta-row .btn{color:var(--bone)}

/* ---- search page and 404 ---- */
.pf{margin-top:var(--s3)}
.pf .pagefind-ui{--pagefind-ui-primary:var(--link);--pagefind-ui-text:var(--text);--pagefind-ui-background:var(--paper);--pagefind-ui-border:var(--rule);--pagefind-ui-tag:var(--paper-2);--pagefind-ui-border-width:1px;--pagefind-ui-border-radius:4px;--pagefind-ui-font:var(--sans);--pagefind-ui-scale:.9}
.az{columns:2;column-gap:var(--s4);margin-top:var(--s3);list-style:none;padding:0}
.az li{break-inside:avoid;padding:6px 0;border-top:1px solid var(--rule-2)}
.az a{text-decoration:none;color:var(--text)}
.az a:hover{color:var(--link)}
.az .m{font:400 11px/1 var(--mono);color:var(--text-3);margin-left:8px}

/* ---- footer and notice ---- */
footer{background:var(--ink)}
.ft-in{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr) auto}
.ft-links{grid-template-columns:1fr}
.ft-note a{text-decoration:none}
.ft-note .motion{background:none;border:0;padding:0;color:inherit;font:inherit;text-transform:inherit;letter-spacing:inherit;cursor:pointer;text-decoration:underline}
.notice{position:fixed;left:16px;right:16px;bottom:16px;z-index:80;max-width:720px;margin:0 auto;display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:16px 18px;background:var(--ink-2);border:1px solid var(--line);color:var(--bone);font-size:14px;line-height:1.5}
.notice[hidden]{display:none}
.notice a{color:var(--signal)}
.notice p{flex:1 1 320px;margin:0}
.notice .btn{min-height:40px;padding:0 16px}

/* ---- responsive ---- */
@media (max-width:1199px){
  .doc-g{grid-template-columns:minmax(0,1fr)}
  .toc{position:static;border:1px solid var(--rule);padding:12px 16px;border-radius:4px;max-width:72ch}
  .toc summary{padding:2px 0}
  .toc details[open] summary{padding-bottom:12px}
}
@media (max-width:960px){
  .shell{grid-template-columns:minmax(0,1fr)}
  .side{position:fixed;inset:76px 0 0;width:min(360px,88vw);height:auto;transform:translateX(-102%);transition:transform .32s var(--ease-drawer);z-index:45;box-shadow:0 0 0 1px var(--line-2)}
  body.side-open .side{transform:none}
  .scrim{display:block;position:fixed;inset:76px 0 0;background:rgba(11,21,32,.55);z-index:44;opacity:0;pointer-events:none;transition:opacity .3s ease}
  body.side-open .scrim{opacity:1;pointer-events:auto}
  .side-btn{display:inline-flex}
  .side-links{display:block}
  .hd-guides{display:none}
  .doc-in{padding-top:var(--s3)}
  .pn{grid-template-columns:1fr}
  .pn .next{grid-column:1;text-align:left}
  .az{columns:1}
}
@media (max-width:600px){
  .hd .lockup{height:26px}
  .prose{font-size:16.5px}
  .actions .abtn span{display:none}
  .actions .abtn{padding:0 11px}
}
@media print{
  .hd,.side,.scrim,.toc,.actions,footer,.notice,.fb,.pn,.prog,.crumbs,.side-btn{display:none!important}
  .shell{display:block;padding:0}
  .doc,.doc-in{background:#fff;color:#000;padding:0;max-width:none}
  .prose{max-width:none;font-size:11.5pt}
  .prose a[href^="http"]::after{content:" (" attr(href) ")";font-size:.85em;color:#555}
  .prose img,.prose table,.callout,figure{break-inside:avoid}
  .embed{display:none}
}