:root{
  --bg:#ffffff;
  --fg:#111827;
  --muted:#6b7280;
  --link:#0b63ce;
  --border:#e5e7eb;
  --card:#f9fafb;
  --max: 980px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:var(--font);line-height:1.65}
.container{max-width:var(--max);margin:0 auto;padding:36px 18px}
header{border-bottom:1px solid var(--border);background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);position:sticky;top:0;z-index:20}
.header-inner{max-width:var(--max);margin:0 auto;padding:14px 18px;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.site-title{font-weight:750;font-size:18px;letter-spacing:.2px}
.site-title a{color:var(--fg);text-decoration:none}

/* top-left brand highlight */
.brand{
  position:relative;
  display:inline-block;
  padding:6px 12px;
  border-radius:999px;
  border:1px solid #e5e7eb;
  box-shadow:0 6px 18px rgba(17,24,39,0.06);
  font-weight:800;
  letter-spacing:0.2px;

  /* gradient text */
  color:transparent;
  background-image:linear-gradient(90deg, #0b63ce, #6d28d9);
  -webkit-background-clip:text;
  background-clip:text;
}
.brand::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:999px;
  background:linear-gradient(135deg, rgba(11,99,206,0.10), rgba(109,40,217,0.10));
  z-index:-1;
}
.brand:hover{filter:saturate(1.15)}

nav{display:flex;flex-wrap:wrap;gap:10px}
nav a{color:var(--muted);text-decoration:none;font-size:14px;padding:6px 8px;border-radius:8px}
nav a:hover{color:var(--fg);background:#f3f4f6}

main h1{margin:0 0 10px 0;font-size:19px;line-height:1.35;font-weight:720}
main h2{margin-top:20px;font-size:18px;line-height:1.35}
main h3{margin-top:16px;font-size:16px;color:var(--fg)}

.hero{display:flex;gap:18px;align-items:flex-start;flex-wrap:wrap}
.avatar{width:140px;height:140px;border-radius:14px;object-fit:cover;border:1px solid var(--border);background:#f3f4f6}
.hero-main{flex:1;min-width:260px}

a{color:var(--link)}
.subtitle{color:var(--muted);margin-top:6px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 16px;margin:16px 0}
.list-tight ul{margin:8px 0 0 18px}
.small{color:var(--muted);font-size:13px}
footer{border-top:1px solid var(--border);margin-top:34px}
.footer-inner{max-width:var(--max);margin:0 auto;padding:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
hr{border:0;border-top:1px solid var(--border);margin:24px 0}

/* nicer lists for “news”-style bullets */
ul.news{list-style:none;padding-left:0}
ul.news li{margin:10px 0;padding-left:14px;position:relative}
ul.news li::before{content:"•";position:absolute;left:0;color:var(--muted)}

/* responsive video embeds */
.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.video{position:relative;width:100%;padding-top:56.25%;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:#000}
.video iframe{position:absolute;top:0;left:0;width:100%;height:100%}

/* favorite cards */
.fav-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:12px 0 18px}
.fav-card{border:1px solid var(--border);border-radius:14px;overflow:hidden;background:#fff;text-decoration:none;color:var(--fg)}
.fav-card:hover{box-shadow:0 6px 18px rgba(17,24,39,0.08)}
.fav-img{width:100%;height:140px;object-fit:cover;display:block;background:#f3f4f6}
.fav-body{padding:12px 12px 14px}
.fav-title{font-weight:700;margin:0 0 6px 0}
.fav-meta{color:var(--muted);font-size:13px;word-break:break-word}

/* dblp-like publications */
.pub-year{margin-top:26px;margin-bottom:8px;font-size:18px}
.pub-list{margin:8px 0 0 0;padding-left:0;list-style:none}
.pub{margin:10px 0}
.pub .authors{color:var(--fg)}
.pub .title{font-weight:650}
.pub .venue{color:var(--muted)}
.pub .note{color:var(--muted);font-size:13px}

.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;line-height:1.4;border:1px solid var(--border);background:#fff;margin:0 4px 2px 0;white-space:nowrap}
.badge.core{border-color:#dbeafe;background:#eff6ff;color:#1d4ed8}
.badge.ccf{border-color:#dcfce7;background:#f0fdf4;color:#166534}

/* emphasis pill */
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;line-height:1.5;border:1px solid}
.pill-red{border-color:#fecaca;background:#fef2f2;color:#b91c1c}