:root{
  --bg:#f4f5f3; --surface:#ffffff; --fg:#1b1f22; --muted:#596067; --line:#d6dad7;
  --accent:#b3261e; --accent-ink:#ffffff; --tint:#f7e9e7;
  --ok:#2f6b3a; --warn:#8f6200; --crit:#b3261e;
  --display:Bahnschrift,"DIN Alternate","Roboto Condensed","Arial Narrow","Helvetica Neue",Arial,sans-serif;
  --body:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#14171a; --surface:#1c2024; --fg:#e6e8e6; --muted:#9ea6ac; --line:#2f353a;
  --accent:#ef6b5f; --accent-ink:#14171a; --tint:#3a201e;
  --ok:#7cc48a; --warn:#e2b54a; --crit:#ef6b5f; color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.7 var(--body)}
.wrap{max-width:1080px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
a{color:var(--accent);text-underline-offset:2px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
h1,h2,h3{font-family:var(--display);line-height:1.12;margin:0;text-wrap:balance}
p{margin:0}
img{max-width:100%}
.label{font:500 .72rem/1 var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;background:var(--surface);padding:.4rem .7rem;z-index:10}

nav.top{border-bottom:1px solid var(--line);background:var(--surface)}
nav.top .wrap{display:flex;flex-wrap:wrap;gap:.4rem 1.6rem;align-items:center;justify-content:space-between;padding-block:.8rem}
.brand{font:800 1.4rem/1 var(--display);text-transform:uppercase;letter-spacing:.04em;color:var(--fg);text-decoration:none}
.brand span{color:var(--accent)}
nav.top ul{display:flex;flex-wrap:wrap;gap:.3rem 1.2rem;list-style:none;margin:0;padding:0}
nav.top ul a{color:var(--muted);text-decoration:none;font-weight:500;font-size:.92rem}
nav.top ul a:hover,nav.top ul a[aria-current]{color:var(--fg)}
nav.top ul a[aria-current]{text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:6px}

.crumbs{font-size:.84rem;color:var(--muted);padding-block:1.1rem 0}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 .4rem}

/* home */
.hero{padding-block:3rem 2.4rem;border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:2.4rem;align-items:end}
.hero h1{font-size:clamp(2.5rem,7vw,4.6rem);font-weight:800;text-transform:uppercase}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lede{margin-top:1.1rem;font-size:1.12rem;color:var(--muted);max-width:56ch}
.shift{display:flex;gap:.35rem;font:700 1.6rem/1 var(--display)}
.shift span{width:2.4rem;height:2.6rem;display:grid;place-items:center;border:1.5px solid var(--line);border-radius:4px;color:var(--muted);background:var(--surface)}
.shift span.on{border-color:var(--accent);color:var(--accent);animation:blink 1s steps(2,start) infinite}
@keyframes blink{to{visibility:hidden}}
@media (prefers-reduced-motion:reduce){.shift span.on{animation:none}}
.hero aside{display:grid;gap:.8rem;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:1.2rem}
.hero aside p{font-size:.93rem;color:var(--muted)}
.hero aside a{font-weight:600}

section.block{padding-block:2.8rem;border-bottom:1px solid var(--line)}
.sec-head{display:grid;gap:.6rem;margin-bottom:1.6rem}
.sec-head h2{font-size:clamp(1.7rem,4vw,2.3rem);text-transform:uppercase;font-weight:700}
.sec-head p.sub{color:var(--muted);max-width:68ch}

.cats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.cats a{background:var(--surface);padding:1.1rem;display:grid;gap:.4rem;align-content:start;text-decoration:none;color:var(--fg)}
.cats a:hover{background:var(--tint)}
.cats b{font:700 1.25rem/1.1 var(--display);text-transform:uppercase}
.cats span{font-size:.88rem;color:var(--muted);line-height:1.45}
.cats em{font:500 .72rem/1 var(--mono);color:var(--accent);font-style:normal;letter-spacing:.08em}

.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:1.1rem;display:grid;gap:.5rem;align-content:start;text-decoration:none;color:var(--fg)}
.card:hover{border-color:var(--accent)}
.card h3{font-size:1.2rem;font-weight:700}
.card p{font-size:.9rem;color:var(--muted);line-height:1.5}
.card .label{color:var(--accent)}

.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:6px;background:var(--surface);margin-block:1.2rem}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.92rem;line-height:1.5}
th,td{text-align:left;padding:.7rem .85rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font:500 .72rem/1.2 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);background:var(--bg)}
tr:last-child td{border-bottom:0}

.az{columns:2;column-gap:2.4rem}
.az h3{font-size:1.15rem;text-transform:uppercase;margin:1.2rem 0 .4rem;break-after:avoid}
.az h3:first-child{margin-top:0}
.az ul{margin:0;padding-left:1.1rem}
.az li{margin:.15rem 0;break-inside:avoid}

/* article */
article.post{max-width:760px;padding-block:1.2rem 3rem}
article.post h1{font-size:clamp(2rem,5vw,3.1rem);font-weight:800;margin-top:.7rem}
.byline{display:flex;flex-wrap:wrap;gap:.3rem 1.2rem;margin-top:1rem}
.dek{font-size:1.15rem;color:var(--muted);margin-top:1.1rem;line-height:1.6}
.toc{margin-top:1.6rem;padding:1rem 1.2rem;background:var(--surface);border:1px solid var(--line);border-radius:6px}
.toc ol{margin:.5rem 0 0;padding-left:1.2rem;font-size:.94rem;line-height:1.6}
.post .body h2{font-size:1.75rem;margin:2.4rem 0 .8rem;text-transform:uppercase;font-weight:700;scroll-margin-top:1rem}
.post .body h3{font-size:1.25rem;margin:1.6rem 0 .5rem;font-weight:700}
.post .body p{margin:0 0 1.05rem}
.post .body ul,.post .body ol{margin:0 0 1.2rem;padding-left:1.3rem}
.post .body li{margin:.3rem 0}
.post .body blockquote{margin:1.4rem 0;background:var(--tint);border-radius:6px;padding:1rem 1.2rem}
.post .body blockquote p{margin:0}
.post .body blockquote p+p{margin-top:.6rem}
.post .body code{font:.88em var(--mono);background:var(--surface);border:1px solid var(--line);border-radius:3px;padding:.05em .3em}
.post .body hr{border:0;border-top:1px solid var(--line);margin:2rem 0}
.related{margin-top:2.6rem;padding-top:1.6rem;border-top:1px solid var(--line)}
.related h2{font-size:1.4rem;text-transform:uppercase;margin-bottom:1rem}
.note{margin-top:2rem;font-size:.86rem;color:var(--muted)}

/* hub */
.hub{padding-block:1.4rem 3rem}
.hub h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;text-transform:uppercase;margin-top:.7rem}
.hub .intro{max-width:70ch;margin:1rem 0 2rem;display:grid;gap:.9rem}
.hub .intro p{color:var(--muted)}
.list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.list a{background:var(--surface);padding:1rem 1.2rem;display:grid;gap:.25rem;text-decoration:none;color:var(--fg)}
.list a:hover{background:var(--tint)}
.list b{font:700 1.2rem/1.2 var(--display)}
.list span{font-size:.92rem;color:var(--muted);line-height:1.5}

footer{padding-block:2.2rem;color:var(--muted);font-size:.86rem;border-top:1px solid var(--line);margin-top:1rem}
footer .wrap{display:grid;gap:.7rem}
footer ul{display:flex;flex-wrap:wrap;gap:.3rem 1.2rem;list-style:none;margin:0;padding:0}
footer a{color:var(--muted)}

@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr}
  .cats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:600px){
  body{font-size:16.5px}
  .cats,.cards{grid-template-columns:1fr}
  .az{columns:1}
}