:root{--fg:#111;--muted:#555;--border:#e6e6e6;--bg:#fff;--link:#0645ad;}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.55}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:980px;margin:0 auto;padding:24px}
header{border-bottom:1px solid var(--border);background:#fff;position:sticky;top:0}
.nav{display:flex;gap:14px;flex-wrap:wrap;align-items:center;padding:14px 24px}
.brand{font-weight:700;margin-right:14px}
.nav a{color:var(--fg)}
.nav a.active{font-weight:700;text-decoration:underline}
main{padding:24px 0}
h1{font-size:2rem;margin:0 0 10px}
h2{font-size:1.25rem;margin:28px 0 10px}
p{margin:10px 0}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 2px}
.tags-home{justify-content:space-between}
.tag{border:1px solid var(--border);border-radius:999px;padding:4px 10px;font-size:.9rem;color:var(--muted)}
.card{border:1px solid var(--border);border-radius:12px;padding:14px;margin:10px 0}
.small{color:var(--muted);font-size:.95rem}
.pub-title{font-weight:600}
footer{border-top:1px solid var(--border);margin-top:34px;padding:18px 0;color:var(--muted);font-size:.9rem}
hr{border:0;border-top:1px solid var(--border);margin:18px 0}
img.placeholder{width:220px;max-width:100%;height:auto;border:1px dashed var(--border);border-radius:12px;padding:18px;color:var(--muted)}

.hero-image{width:100%;max-width:900px;height:auto;display:block;margin:1.5rem auto;border-radius:8px}

/* Social icons (consistent with cards + site palette) */
.social-links{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0 0}
.social-links a{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--link);
  font-weight:500;
  text-decoration:none;
  transition:transform .15s ease, background .15s ease;
}
.social-links a:hover{
  transform:translateY(-1px);
  background:rgba(0,0,0,0.02);
  text-decoration:none;
}
.social-icon{width:18px;height:18px;display:block}
.social-text{font-size:.95rem}