:root{
  --bg:#0a0e14; --bg2:#0d1219; --panel:#111823; --line:#1c2735;
  --ink:#c9d1d9; --dim:#8b949e; --faint:#5b6672;
  --accent:#39d3a9; --accent2:#4ea3ff;
  color-scheme:dark;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;
}
.mono{font-family:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:720px;margin:0 auto;padding:0 1.5rem}

/* nav */
header.nav{position:sticky;top:0;z-index:50;background:rgba(10,14,20,.82);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .bar{max-width:720px;margin:0 auto;padding:0 1.5rem;height:56px;
  display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;letter-spacing:.14em;color:var(--accent);font-size:1.02rem}
nav.links a{color:var(--dim);margin-left:1.4rem;font-size:.9rem}
nav.links a:hover{color:var(--ink);text-decoration:none}

/* blog index */
.page-head{padding:3.5rem 0 1rem}
.page-head .eyebrow{color:var(--accent);font-size:.72rem;letter-spacing:.28em;
  text-transform:uppercase;font-weight:600;margin-bottom:.6rem}
.page-head h1{font-size:clamp(2rem,6vw,2.8rem);color:#e8eef4;letter-spacing:.01em}
.page-head p{color:var(--dim);margin-top:.6rem}

.postlist{list-style:none;padding:1.5rem 0 4rem}
.postlist li{border-top:1px solid var(--line);padding:1.6rem 0}
.postlist li:last-child{border-bottom:1px solid var(--line)}
.postlist .date{color:var(--faint);font-size:.78rem;letter-spacing:.05em}
.postlist a.title{display:inline-block;margin-top:.25rem;font-size:1.3rem;color:#e8eef4;font-weight:600}
.postlist a.title:hover{color:var(--accent);text-decoration:none}
.postlist .excerpt{color:var(--dim);margin-top:.5rem;font-size:.96rem}
.postlist .pin{display:inline-block;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);border:1px solid var(--line);border-radius:6px;padding:.12rem .45rem;
  margin-left:.6rem;vertical-align:middle;background:rgba(57,211,169,.05)}

/* article */
article{padding:3rem 0 1rem}
article .kicker{color:var(--faint);font-size:.78rem;letter-spacing:.05em;margin-bottom:.7rem}
article h1{font-size:clamp(1.9rem,5.5vw,2.6rem);color:#eef3f8;line-height:1.15;letter-spacing:.005em}
article .byline{color:var(--faint);font-size:.82rem;margin-top:.9rem;padding-bottom:1.6rem;
  border-bottom:1px solid var(--line)}
article .body{padding-top:1.8rem}
article .body p{color:#bcc6d1;margin-bottom:1.25rem;font-size:1.04rem}
article .body h2{color:#e8eef4;font-size:1.35rem;margin:2rem 0 .8rem;letter-spacing:.01em}
article .body strong{color:#e8eef4;font-weight:600}
article .body em{color:var(--ink)}
article .body blockquote{border-left:2px solid var(--accent);padding:.3rem 0 .3rem 1.2rem;
  margin:1.6rem 0;color:var(--ink);font-style:italic}
article .body code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.9em;
  background:var(--panel);border:1px solid var(--line);border-radius:5px;padding:.08rem .38rem;color:var(--accent)}
article .body a{border-bottom:1px solid rgba(57,211,169,.35)}
article .sign{margin-top:2.2rem;padding-top:1.4rem;border-top:1px solid var(--line);
  color:var(--faint);font-size:.92rem}
article .sign .cs{color:var(--accent);letter-spacing:.12em;font-weight:600}

.postnav{display:flex;justify-content:space-between;gap:1rem;padding:2rem 0 4rem}
.postnav a{color:var(--dim);font-size:.9rem}
.postnav a:hover{color:var(--ink);text-decoration:none}

footer{padding:2.5rem 0;text-align:center;color:var(--faint);font-size:.8rem;border-top:1px solid var(--line)}
footer .cs{color:var(--accent);letter-spacing:.14em;font-weight:600}
footer .dot{color:var(--line);margin:0 .5rem}
.blink{animation:blink 1.4s step-end infinite}@keyframes blink{50%{opacity:0}}