:root{
  --bg:#ffffff; --text:#1f2937; --muted:#4b5563; --accent:#2563eb;
  --card:#f8fafc; --line:#e5e7eb; --chip:#eef2ff; --max:1100px; --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Helvetica,Arial,sans-serif;line-height:1.6}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
header{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff,#fafafa)}
.nav{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:12px}
.brand{font-weight:700;letter-spacing:.2px}
.tabs{display:flex;gap:14px;flex-wrap:wrap}
.tabs a{padding:8px 10px;border-radius:10px;color:var(--muted)}
.tabs a:hover{background:#f3f4f6;color:var(--text)}
.container{max-width:var(--max);margin:0 auto;padding:28px 20px}
h1{font-size:clamp(28px,4vw,40px);line-height:1.2;margin:0}
h2{font-size:clamp(22px,3vw,28px);margin:4px 0 8px}
section{padding:18px 0;border-top:1px solid var(--line)}
section:first-of-type{border-top:none}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.list{display:grid;gap:12px}
.pub{display:grid;gap:4px}
.pub .title{font-weight:600}
.pub .meta{color:var(--muted);font-size:14px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;border:1px solid var(--line);font-size:14px;color:var(--muted)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.chip{background:var(--chip);padding:6px 10px;border-radius:999px;font-size:14px;border:1px solid #e0e7ff}
tify-self: center;   /* centers horizontally within the grid cell */
.hero {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 24px;
  align-items: center;
  padding: 26px 0;
}
.avatar {
  width: 170px;
  height: 170px;
  border-radius: 14px;
  object-fit: cover;
  border: 1px solid var(--line);
}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.columns{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
@media (max-width:900px){.grid2,.columns{grid-template-columns:1fr} .hero{grid-template-columns:1fr} .avatar{width:120px;height:120px}}
footer{border-top:1px solid var(--line);padding:26px 20px;color:var(--muted)}
.small{color:var(--muted);font-size:14px}