:root{
  --bg:#ffffff;
  --fg:#0f172a;
  --muted:#475569;
  --soft:#64748b;
  --line:#e2e8f0;
  --card:#ffffff;
  --shadow: 0 10px 30px rgba(2,6,23,.06);
  --radius: 18px;
  --accent:#0b4f6c;
  --max: 980px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0b0c10;
    --fg:#e5e7eb;
    --muted:#a3a3a3;
    --soft:#9ca3af;
    --line:#22262e;
    --card:#0f1117;
    --shadow: 0 18px 40px rgba(0,0,0,.38);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font: 16px/1.65 var(--sans);
  text-rendering:optimizeLegibility;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max); margin:0 auto; padding:54px 22px}
header{
  position:sticky; top:0; z-index:50;
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{max-width:var(--max); margin:0 auto; padding:14px 22px; display:flex; gap:14px; align-items:flex-start; justify-content:space-between}
.brand h1{margin:0; font-size:22px; line-height:1.25}
.brand .sub{margin-top:4px; color:var(--muted); font-size:14px}
nav{display:flex; gap:14px; flex-wrap:wrap; justify-content:flex-end; font-size:14px}
nav a{color:var(--muted)}
nav a.active{color:var(--fg)}
main{padding-top:18px}
.home{
  display:grid;
  grid-template-columns: 340px 1fr;
  gap:20px;
  align-items:start;
}
@media (max-width: 920px){ .home{grid-template-columns:1fr} }
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  box-shadow: var(--shadow);
}
.kicker{
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--soft);
}
h2{font-size:18px; margin:10px 0 10px}
p{margin:0 0 12px}
.small{font-size:14px; color:var(--muted)}
.pills{display:flex; gap:10px; flex-wrap:wrap; margin-top:12px}
.pill{
  display:inline-flex; align-items:center;
  padding:7px 11px;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--fg);
  font-size:14px;
}
.pill:hover{ text-decoration:none; border-color: color-mix(in oklab, var(--accent) 32%, var(--line)); }
.avatar{
  width:84px; height:84px; border-radius:18px;
  background: var(--line);
  object-fit:cover;
  display:block;
  margin-bottom:12px;
}
hr{border:0; border-top:1px solid var(--line); margin:16px 0}
.pub{
  padding:14px 0;
  border-top:1px solid var(--line);
}
.pub:first-child{border-top:0; padding-top:0}
.pub .title{font-weight:650}
.pub .meta{margin-top:3px; color:var(--muted); font-size:14px}
.pub .takeaway{margin-top:7px; font-size:14px}
.pub .links{margin-top:9px; display:flex; gap:10px; flex-wrap:wrap; font-size:14px}
.badge{
  display:inline-flex; align-items:center;
  padding:2px 8px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:12px;
}
.footer{
  margin-top:34px;
  padding-top:18px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:14px;
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
input, select{
  font:inherit;
  color:var(--fg);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 12px;
}
.controls{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin: 10px 0 6px;
}
code{font-family:var(--mono); font-size:0.95em}

/* About section with portrait */
.about-card{
  display:grid;
  grid-template-columns: 1fr 140px;
  gap:18px;
  align-items:start;
}

.about-photo{
  width:140px;
  height:180px;
  object-fit:cover;
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--line);
}

/* Stack on mobile */
@media (max-width: 720px){
  .about-card{
    grid-template-columns:1fr;
  }
  .about-photo{
    width:120px;
    height:150px;
  }
}