@font-face{font-family:"Inter";src:url(/fonts/inter-400.woff) format("woff");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url(/fonts/inter-600.woff) format("woff");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Inter Display";src:url(/fonts/inter-display-700.woff) format("woff");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Caladea";src:url(/fonts/caladea-400.woff) format("woff");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Caladea";src:url(/fonts/caladea-400i.woff) format("woff");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Caladea";src:url(/fonts/caladea-700.woff) format("woff");font-weight:700;font-style:normal;font-display:swap}

:root{
  --paper:#F5F6F8;--surface:#FFFFFF;--ink:#12151C;--muted:#566070;--line:#D9DDE5;
  --accent:#2740D8;--accent-ink:#FFFFFF;--heat:#FFB224;--code:#E9ECF2;
  --font-body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-display:"Inter Display","Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-read:"Caladea",Cambria,Georgia,"Times New Roman",serif;
  --measure:68ch;
}
@media (prefers-color-scheme:dark){
  :root{--paper:#0D1016;--surface:#141922;--ink:#E9ECF3;--muted:#9AA3B5;--line:#262D3A;--accent:#9DB0FF;--accent-ink:#0D1016;--code:#1A2030}
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.7 var(--font-body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;height:auto}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:8px 14px;border-radius:6px;z-index:100}
.skip:focus{left:8px}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 20px}

/* header */
.site-header{border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font:700 1.35rem/1 var(--font-display);letter-spacing:-.02em}
.logo svg{width:28px;height:28px;flex:none}
.logo:hover{text-decoration:none}
.nav{display:flex;gap:22px;overflow-x:auto;white-space:nowrap;max-width:100%;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.nav::-webkit-scrollbar{display:none}
@media (max-width:860px){.site-header .wrap{padding-top:12px}.nav{flex:1 1 100%;gap:20px;padding-bottom:4px}}
.nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{border-bottom-color:var(--heat)}

/* hero */
.hero{padding:56px 0 40px}
.hero .wrap{display:grid;gap:36px;align-items:center}
@media (min-width:860px){.hero .wrap{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:56px}}
.hero h1{font:700 clamp(2.15rem,5.2vw,3.7rem)/1.04 var(--font-display);letter-spacing:-.03em;margin:0 0 20px;max-width:15ch}
.hero .lede{font-size:1.15rem;color:var(--muted);max-width:46ch;margin:0 0 28px}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);font-weight:600;font-size:1rem;padding:12px 22px;border-radius:8px;text-decoration:none;border:2px solid var(--accent)}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--ink);filter:none}
.hero-art{color:var(--ink);justify-self:center;width:100%;max-width:380px}
@media (max-width:859px){.hero{padding:36px 0 28px}.hero-art{max-width:220px;order:-1}}
.hero-art svg{display:block;width:100%;height:auto}
.hero-art .lay{animation:lay .35s ease-out both;animation-delay:calc(var(--i) * 26ms)}
@keyframes lay{from{opacity:0}to{opacity:1}}
@media (prefers-reduced-motion:reduce){.hero-art .lay{animation:none}}

.hero-cta{display:flex;flex-wrap:wrap;gap:12px}

/* category strip + blocks */
.cat-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface)}
.cat-strip ul{list-style:none;margin:0;padding:0;display:flex;gap:8px 28px;flex-wrap:wrap;padding:14px 0}
.cat-strip a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem;display:inline-flex;gap:8px;align-items:baseline}
.cat-strip a span{color:var(--muted);font-weight:400;font-variant-numeric:tabular-nums}
.cat-strip a:hover{color:var(--accent)}
.cat-block{padding:52px 0 8px;scroll-margin-top:8px}
.cat-block:last-child{padding-bottom:64px}
.cat-head{display:grid;gap:4px;margin-bottom:6px}
.cat-head h2{font:700 1.75rem/1.15 var(--font-display);letter-spacing:-.02em;margin:0}
.cat-head h2 a{color:var(--ink);text-decoration:none}
.cat-head h2 a:hover{color:var(--accent)}
.cat-head p{margin:0;color:var(--muted);max-width:60ch}
.cat-lede{color:var(--muted);font-size:1.1rem;margin:12px 0 0;max-width:60ch}

/* post list */
.post-item{display:grid;gap:14px;padding:24px 0;border-bottom:1px solid var(--line)}
.post-list .post-item:first-child{border-top:1px solid var(--line)}
@media (min-width:720px){.post-item{grid-template-columns:220px minmax(0,1fr);gap:28px}}
.post-item img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:var(--surface)}
.post-item h3{font:700 1.3rem/1.25 var(--font-display);letter-spacing:-.015em;margin:0 0 8px}
.post-item h3 a{color:var(--ink);text-decoration:none}
.post-item h3 a:hover{color:var(--accent);text-decoration:underline}
.post-item p{margin:0 0 10px;color:var(--muted)}
.meta{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:.88rem;color:var(--muted)}

/* article */
.crumbs{font-size:.88rem;color:var(--muted);padding:22px 0 0}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 8px}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--line)}
.crumbs a{color:var(--muted)}
.post-head{padding:18px 0 8px;max-width:820px}
.post-head h1{font:700 clamp(1.9rem,4.4vw,3rem)/1.1 var(--font-display);letter-spacing:-.025em;margin:0 0 16px}
.post-head .lede{font-size:1.2rem;line-height:1.55;color:var(--muted);margin:0 0 18px}
.post-grid{display:grid;gap:28px;padding:28px 0 64px}
@media (min-width:1040px){.post-grid{grid-template-columns:220px minmax(0,1fr);gap:56px}}
.post-grid>*{min-width:0}
.toc{font-size:.92rem}
.toc summary{font-weight:600;cursor:pointer;padding:8px 0}
.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.toc li{margin:0}
.toc a{display:block;padding:5px 0 5px 14px;color:var(--muted);text-decoration:none;margin-left:-2px;border-left:2px solid transparent}
.toc a:hover{color:var(--ink);border-left-color:var(--heat)}
@media (min-width:1040px){.toc{position:sticky;top:24px;align-self:start}.toc summary{pointer-events:none;list-style:none}.toc summary::-webkit-details-marker{display:none}}
.hero-fig{margin:8px 0 8px}
.hero-fig img{display:block;width:100%;height:auto;border-radius:10px;border:1px solid var(--line);background:var(--surface)}

.prose{max-width:var(--measure);min-width:0;font-family:var(--font-read);font-size:1.18rem;line-height:1.72}
.prose strong{font-weight:700}
.prose table,.prose figcaption,.prose pre{font-family:var(--font-body)}
.prose h3{font-family:var(--font-body)}
.prose>*:first-child{margin-top:0}
.prose h2{font:700 1.7rem/1.2 var(--font-display);letter-spacing:-.02em;margin:2.5em 0 .6em;scroll-margin-top:16px}
.prose h3{font:600 1.18rem/1.35 var(--font-body);margin:1.9em 0 .4em;scroll-margin-top:16px}
.prose p{margin:0 0 1.15em}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:1.4em}
.prose li{margin:.35em 0}
.prose li::marker{color:var(--muted)}
.prose strong{font-weight:600}
.prose code{font:.9em var(--font-mono);background:var(--code);padding:.1em .38em;border-radius:4px}
.prose pre{background:var(--code);padding:16px;border-radius:8px;overflow:auto;font:.9rem/1.55 var(--font-mono)}
.prose pre code{background:none;padding:0}
.prose blockquote{margin:1.6em 0;padding:.2em 0 .2em 18px;border-left:3px solid var(--heat);color:var(--ink)}
.prose blockquote p{margin:.4em 0}
.prose figure{margin:2em 0}
.prose figure img{display:block;width:100%;height:auto;border-radius:10px;border:1px solid var(--line);background:var(--surface)}
.prose figcaption{font-size:.88rem;color:var(--muted);margin-top:8px}
.table-wrap{overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.prose table{border-collapse:collapse;width:100%;min-width:560px;font-size:.95rem;line-height:1.5}
.prose th,.prose td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{background:var(--code);font-weight:600;white-space:nowrap}
.prose tr:last-child td{border-bottom:0}
.prose hr{border:0;height:10px;margin:2.6em 0;background:repeating-linear-gradient(to bottom,var(--line) 0 1px,transparent 1px 5px)}
.author{margin-top:3em;padding-top:20px;border-top:1px solid var(--line);font-size:.95rem;color:var(--muted)}
.author strong{color:var(--ink)}

/* related */
.related{border-top:1px solid var(--line);padding:36px 0 56px}
.related h2{font:700 1.4rem/1.2 var(--font-display);letter-spacing:-.015em;margin:0 0 18px}
.related ul{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:20px}
@media (min-width:720px){.related ul{grid-template-columns:repeat(3,minmax(0,1fr))}}
.related li a{display:grid;gap:10px;color:var(--ink);text-decoration:none;font-weight:600;line-height:1.35}
.related li a:hover span{color:var(--accent);text-decoration:underline}
.related img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:var(--surface)}

/* plain pages */
.page-head{padding:44px 0 4px}
.page-head h1{font:700 clamp(1.9rem,4vw,2.7rem)/1.1 var(--font-display);letter-spacing:-.025em;margin:0}
.page-body{padding:20px 0 72px}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:24px}
.site-footer::before{content:"";display:block;height:11px;background:repeating-linear-gradient(to bottom,var(--heat) 0 2px,transparent 2px 6px);opacity:.9}
.site-footer .wrap{display:grid;gap:28px;padding-top:32px;padding-bottom:36px}
@media (min-width:760px){.site-footer .wrap{grid-template-columns:1.2fr 1fr 1fr}}
.site-footer p{margin:0;color:var(--muted);font-size:.93rem;max-width:34ch}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:.93rem}
.site-footer a,.linklike{color:var(--ink);text-decoration:none}
.site-footer a:hover,.linklike:hover{text-decoration:underline}
.linklike{background:none;border:0;padding:0;font:inherit;cursor:pointer;text-align:left}
.copy{grid-column:1/-1;color:var(--muted);font-size:.85rem;border-top:1px solid var(--line);padding-top:16px}

/* consent */
.consent{position:fixed;left:16px;right:16px;bottom:16px;max-width:560px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:18px;z-index:50;box-shadow:0 6px 24px rgba(10,14,25,.14)}
.consent[hidden]{display:none}
.consent h2{font:700 1.05rem/1.3 var(--font-display);margin:0 0 6px}
.consent p{margin:0 0 14px;font-size:.93rem;line-height:1.55;color:var(--muted)}
.consent .row{display:flex;gap:10px;flex-wrap:wrap}
.consent .btn{flex:1 1 140px;text-align:center;cursor:pointer;font-family:inherit;font-size:.95rem;padding:10px 16px}

.notfound{padding:72px 0 96px}
.notfound h1{font:700 clamp(2rem,5vw,3.2rem)/1.1 var(--font-display);letter-spacing:-.03em;margin:0 0 12px}
.notfound p{color:var(--muted);max-width:46ch;margin:0 0 24px}

@media print{.site-header,.site-footer,.consent,.toc{display:none}body{background:#fff;color:#000}}