:root{
  --bg:#fff;--bg2:#f4f5f7;--bg3:#e8eaee;--line:#dde0e5;
  --text:#1c2026;--muted:#59616c;--accent:#1d5fa8;--accent-bg:#e9f1fa;--logo-fg:#fff;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --serif:Charter,"Bitstream Charter","Sitka Text",Cambria,Georgia,"Noto Serif","DejaVu Serif",serif;
  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#14171b;--bg2:#1b1f25;--bg3:#262b32;--line:#2e343c;
    --text:#e3e6ea;--muted:#9aa3ae;--accent:#7ab0ea;--accent-bg:#1b2a3c;--logo-fg:#14171b}
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;color-scheme:light dark}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 var(--sans);overflow-wrap:break-word}
img,svg{max-width:100%;height:auto}
a{color:var(--accent);text-underline-offset:.15em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:var(--bg);padding:8px 12px;z-index:5}
.skip:focus{left:8px;top:8px}

/* шапка */
.site-h{border-bottom:1px solid var(--line)}
.site-h .wrap{display:flex;align-items:center;justify-content:space-between;gap:8px 24px;flex-wrap:wrap;min-height:60px;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;font-size:1.2rem;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand svg{width:30px;height:30px;flex:none}
.nav{display:flex;gap:4px 20px;flex-wrap:wrap;margin:0;padding:0;list-style:none}
.nav a{color:var(--text);text-decoration:none;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current]{border-bottom-color:var(--accent)}

/* главная */
.home{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding-top:32px;padding-bottom:48px}
.home h1,.page h1.pg{font-size:1.5rem;line-height:1.25;margin:0 0 4px}
.home h2.sec{font-size:1.1rem;margin:0 0 12px}
.feed{list-style:none;margin:0;padding:0}
.item{display:grid;grid-template-columns:minmax(0,1fr) 168px;grid-template-areas:"meta thumb" "title thumb" "ex thumb";column-gap:20px;align-content:start;padding:18px 0;border-top:1px solid var(--line)}
.feed li:first-child .item{border-top:0;padding-top:8px}
.item .meta{grid-area:meta}
.item h3{grid-area:title;margin:2px 0 6px;font-size:1.2rem;line-height:1.3}
.item h3 a{color:var(--text);text-decoration:none}
.item h3 a:hover{color:var(--accent);text-decoration:underline}
.item .ex{grid-area:ex;margin:0;color:var(--muted);font-size:.97rem}
.item .thumb{grid-area:thumb;display:block;align-self:start}
.item .thumb img{display:block;width:100%;height:auto;border-radius:8px;border:1px solid var(--line);aspect-ratio:16/9}
.meta{font-size:.86rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:0 10px}
.meta time{font-family:var(--mono);font-size:.82rem}
.meta a{color:var(--muted)}
.side section{margin-bottom:32px}
.side h2{font-size:1.1rem;margin:0 0 10px}
.start{margin:0;padding:0;list-style:none;counter-reset:s}
.start li{counter-increment:s;position:relative;padding:0 0 12px 34px}
.start li::before{content:counter(s);position:absolute;left:0;top:1px;width:24px;height:24px;border-radius:50%;background:var(--accent-bg);color:var(--accent);font-weight:700;font-size:.85rem;display:grid;place-items:center}
.start a{font-weight:600;color:var(--text);text-decoration:none}
.start a:hover{color:var(--accent);text-decoration:underline}
.start span{display:block;font-size:.9rem;color:var(--muted)}
.rubrics{list-style:none;margin:0;padding:0}
.rubrics li{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--line)}
.rubrics .n{color:var(--muted);font-family:var(--mono);font-size:.85rem}
.side p{margin:0 0 8px;font-size:.95rem}

/* внутренние страницы */
.page{max-width:760px;margin:0 auto;padding:28px 20px 56px}
.crumbs{font-size:.88rem;color:var(--muted);margin:0 0 18px}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:2px 0}
.crumbs li+li::before{content:"/";margin:0 8px;color:var(--line)}
.crumbs a{color:var(--muted)}
.page h1{font-size:2rem;line-height:1.2;margin:0 0 12px;letter-spacing:-.015em}
.byline{font-size:.9rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:0 14px;margin:0 0 20px}
.byline time{font-family:var(--mono);font-size:.86rem}
.cover{margin:0 0 24px}
.cover img{display:block;width:100%;height:auto;border-radius:10px;border:1px solid var(--line);aspect-ratio:16/9}
.toc{background:var(--bg2);border:1px solid var(--line);border-radius:8px;padding:14px 18px;margin:0 0 28px;font-size:.96rem}
.toc p{margin:0 0 6px;font-weight:700}
.toc ol{margin:0;padding-left:1.3em}
.toc li{margin:3px 0}
.prose{font-family:var(--serif);font-size:1.15rem;line-height:1.7}
.prose>p,.prose>ul,.prose>ol{margin:0 0 1.1em}
.prose h2{font-family:var(--sans);font-size:1.45rem;line-height:1.3;margin:2em 0 .6em;letter-spacing:-.01em;scroll-margin-top:16px}
.prose h3{font-family:var(--sans);font-size:1.15rem;margin:1.6em 0 .4em}
.prose li{margin:.3em 0}
.prose li::marker{color:var(--muted)}
.prose strong{font-weight:700}
.prose code{font-family:var(--mono);font-size:.85em;background:var(--bg2);border:1px solid var(--line);border-radius:4px;padding:.05em .35em;white-space:nowrap}
.prose pre{font-family:var(--mono);font-size:.88rem;line-height:1.5;background:var(--bg2);border:1px solid var(--line);border-radius:8px;padding:12px 14px;overflow-x:auto;margin:0 0 1.1em}
.prose pre code{background:none;border:0;padding:0;white-space:pre}
.note{font-family:var(--sans);font-size:1rem;line-height:1.55;background:var(--accent-bg);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;padding:12px 16px;margin:0 0 1.2em}
.note p{margin:0}
.note p+p{margin-top:.6em}
.tbl{overflow-x:auto;margin:0 0 1.3em;-webkit-overflow-scrolling:touch}
.prose table{border-collapse:collapse;width:100%;font-family:var(--sans);font-size:.93rem;line-height:1.45}
.prose th,.prose td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.prose th{background:var(--bg2);font-weight:700}
.prose figure{margin:1.6em 0;font-family:var(--sans)}
.prose figure img{display:block;width:100%;max-width:560px;height:auto;margin:0 auto;border-radius:8px;border:1px solid var(--line)}
.prose figcaption{font-size:.88rem;color:var(--muted);margin:8px auto 0;max-width:560px}
.related{margin:44px 0 0;padding-top:20px;border-top:1px solid var(--line)}
.related h2{font-size:1.15rem;margin:0 0 10px}
.related ul{list-style:none;margin:0;padding:0}
.related li{padding:7px 0;border-bottom:1px solid var(--line)}
.related a{font-weight:600}
.related .meta{margin-top:2px}
.pn{display:flex;justify-content:space-between;gap:16px;margin-top:28px;font-size:.95rem}
.pn a{max-width:48%}
.pn .next{text-align:right;margin-left:auto}
.pn small{display:block;color:var(--muted);font-size:.82rem}

/* список заметок */
.jump{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 8px;padding:0;list-style:none}
.jump a{display:inline-block;padding:4px 12px;border:1px solid var(--line);border-radius:999px;color:var(--text);text-decoration:none;font-size:.93rem}
.jump a:hover{border-color:var(--accent);color:var(--accent)}
.jump span{color:var(--muted);margin-left:4px}
.group h2{font-size:1.2rem;margin:36px 0 4px;scroll-margin-top:12px}
.list{list-style:none;margin:0;padding:0}
.list li{display:grid;grid-template-columns:96px minmax(0,1fr);gap:0 16px;padding:12px 0;border-top:1px solid var(--line)}
.list time{font-family:var(--mono);font-size:.84rem;color:var(--muted);padding-top:.2em}
.list a{font-weight:600;color:var(--text);text-decoration:none}
.list a:hover{color:var(--accent);text-decoration:underline}
.list p{margin:2px 0 0;color:var(--muted);font-size:.93rem}

.plain h2{font-size:1.3rem;margin:1.8em 0 .5em}
.plain p,.plain li{line-height:1.65}
.lead404{font-size:1.1rem}

/* подвал */
.site-f{border-top:1px solid var(--line);margin-top:24px;padding:22px 0 32px;color:var(--muted);font-size:.9rem}
.site-f .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px}
.site-f a{color:var(--muted)}
.site-f ul{display:flex;gap:4px 18px;flex-wrap:wrap;list-style:none;margin:0;padding:0}

@media (max-width:860px){
  .home{grid-template-columns:minmax(0,1fr);gap:8px;padding-top:24px}
}
@media (max-width:560px){
  .wrap{padding:0 16px}
  .page{padding:20px 16px 48px}
  .page h1{font-size:1.65rem}
  .prose{font-size:1.08rem}
  .prose ul,.prose ol{padding-left:1.35em}
  .prose h2{font-size:1.3rem}
  .item{grid-template-columns:minmax(0,1fr) 112px;column-gap:14px}
  .item h3{font-size:1.08rem}
  .item .ex{margin-top:8px}
  .item{grid-template-areas:"meta thumb" "title thumb" "ex ex"}
  .list li{grid-template-columns:minmax(0,1fr);gap:2px}
  .pn{flex-direction:column}
  .pn a,.pn .next{max-width:none;text-align:left;margin-left:0}
}