:root{
  --bg:#f8f9fa;
  --card:#ffffff;
  --text:#1a1d23;
  --muted:#5a6c7d;
  --brand:#0891b2;
  --accent:#7c3aed;
  --ring:rgba(8,145,178,0.25);
  --radius:18px;
  --nav-bg:rgba(248,249,250,0.85);
  --gradient-1:rgba(8,145,178,0.06);
  --gradient-2:rgba(124,58,237,0.06);
  --border:rgba(0,0,0,0.08);
  --shadow:rgba(0,0,0,0.08);
  --badge-bg:rgba(8,145,178,0.08);
  --blockquote-text:#0c4a6e;
  --blockquote-bg:rgba(8,145,178,0.08);
  --btn-text:#ffffff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Inter,Helvetica,Arial,sans-serif;transition:background 0.3s ease,color 0.3s ease}
a{color:var(--brand);text-decoration:none}
a:hover{opacity:.9;text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:24px}
.nav{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:16px 0;position:sticky;top:0;background:var(--nav-bg);backdrop-filter:saturate(160%) blur(8px);z-index:50;border-bottom:1px solid var(--border)}
.nav a{padding:8px 12px;border-radius:10px}
.nav a.active,.nav a:focus{outline:0;background:var(--gradient-1)}
.btn{display:inline-block;padding:10px 14px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--accent));color:var(--btn-text);font-weight:700;box-shadow:0 0 0 3px var(--ring);border:0}
.btn:hover{filter:brightness(1.05);text-decoration:none}
.hero{display:grid;grid-template-columns:1.3fr .7fr;gap:28px;align-items:center;margin-top:18px}
@media (max-width:900px){.hero{grid-template-columns:1fr}}
.card{background:radial-gradient(1000px 300px at 50% -10%,var(--gradient-1),transparent 60%),radial-gradient(700px 200px at 120% -10%,var(--gradient-2),transparent 60%),var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:0 10px 30px var(--shadow)}
.badge{display:inline-flex;gap:8px;align-items:center;padding:6px 10px;border-radius:999px;background:var(--badge-bg);color:var(--muted);border:1px solid var(--border);font-size:14px}
.grid{display:grid;gap:18px}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.grid.g2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.grid.g3,.grid.g2{grid-template-columns:1fr}}
.h1{font-size:40px;line-height:1.1;margin:8px 0 12px;font-weight:800}
.h2{font-size:26px;margin:0 0 8px;font-weight:800}
.h3{font-size:18px;margin:0 0 4px;font-weight:700}
.p{margin:0 0 12px;color:var(--muted)}
.footer{margin:40px 0 20px;color:var(--muted);text-align:center}
.kicker{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700}
.gallery img{width:100%;height:200px;object-fit:cover;border-radius:14px;border:1px solid var(--border)}
.table{width:100%;border-collapse:separate;border-spacing:0 8px}
.table tr{background:var(--card)}
.table td{padding:14px;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.table tr td:first-child{border-left:1px solid var(--border);border-top-left-radius:12px;border-bottom-left-radius:12px}
.table tr td:last-child{border-right:1px solid var(--border);border-top-right-radius:12px;border-bottom-right-radius:12px}
blockquote{border-left:3px solid var(--brand);margin:0;padding:4px 0 4px 14px;color:var(--blockquote-text);background:var(--blockquote-bg);border-radius:6px}
small.muted{color:var(--muted)}
.carousel{position:relative}
.carousel-container{position:relative;overflow:hidden;border-radius:14px}
.carousel-container img{width:100%;height:200px;object-fit:cover;display:none;border:1px solid var(--border)}
.carousel-container img.active{display:block}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,0.6);color:#fff;border:none;width:48px;height:48px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;z-index:10;transition:all 0.2s}
.carousel-arrow:hover{background:rgba(0,0,0,0.8)}
.carousel-arrow.left{left:10px}
.carousel-arrow.right{right:10px}
.carousel-dots{display:flex;gap:8px;justify-content:center;margin-top:12px}
.carousel-dot{width:8px;height:8px;border-radius:50%;background:var(--muted);opacity:0.4;cursor:pointer;transition:all 0.2s}
.carousel-dot.active{opacity:1;background:var(--brand)}
.profile-section{display:flex;gap:40px;align-items:flex-start;margin-bottom:30px}
.profile-left{flex-shrink:0;text-align:center}
.profile-photo{width:200px;height:200px;border-radius:50%;object-fit:cover;object-position:center;border:3px solid var(--brand);margin-bottom:16px;-webkit-backface-visibility:hidden;backface-visibility:hidden;transform:translateZ(0);will-change:transform}
.profile-name{font-size:22px;font-weight:700;margin:8px 0 4px}
.profile-title{color:var(--muted);font-size:16px;margin:4px 0}
.social-links{display:flex;gap:12px;justify-content:center;margin-top:16px}
.social-links a{color:var(--muted);transition:all 0.2s}
.social-links a:hover{color:var(--brand);transform:translateY(-2px)}
.social-links svg{width:24px;height:24px}
.interests-list{list-style:none;padding:0;margin:12px 0}
.interests-list li{padding:6px 0;color:var(--text)}
.interests-list li:before{content:"•";color:var(--brand);font-weight:bold;display:inline-block;width:1em;margin-left:-1em}
.education-item{margin:16px 0;padding-left:20px;position:relative}
.education-item:before{content:"🎓";position:absolute;left:0;top:2px}
@media (max-width:900px){.profile-section{flex-direction:column;align-items:center;text-align:center}}

/* Card links (GitHub, Paper, etc.) */
.card-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.card-link{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:10px;background:var(--badge-bg);border:1px solid var(--border);color:var(--text);font-size:14px;font-weight:600;transition:all 0.2s}
.card-link:hover{background:var(--gradient-1);text-decoration:none;color:var(--brand)}
.card-link svg{width:16px;height:16px}

/* Tech stack badges */
.tech-badges{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.tech-badge{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--badge-bg);border:1px solid var(--border);color:var(--muted);font-size:12px;font-weight:600}

/* Publication entries */
.pub-entry{background:radial-gradient(1000px 300px at 50% -10%,var(--gradient-1),transparent 60%),radial-gradient(700px 200px at 120% -10%,var(--gradient-2),transparent 60%),var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:0 10px 30px var(--shadow);margin-bottom:18px}
.pub-header{display:flex;gap:16px;align-items:flex-start}
.pub-year{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;padding:4px 12px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--accent));color:var(--btn-text);font-size:13px;font-weight:700;margin-top:3px}
.pub-authors{color:var(--muted);font-size:14px;margin:6px 0 4px}
.pub-venue{color:var(--brand);font-size:14px;font-weight:600;margin-bottom:8px}
.pub-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.pub-abstract{margin-top:12px}
.pub-abstract summary{cursor:pointer;color:var(--muted);font-size:14px;font-weight:600}
.pub-abstract summary:hover{color:var(--brand)}
.pub-abstract p{margin:8px 0 0;color:var(--muted);font-size:14px;line-height:1.6}
.bibtex-btn{display:inline-flex;align-items:center;gap:4px;padding:6px 14px;border-radius:10px;background:var(--badge-bg);border:1px solid var(--border);color:var(--text);font-size:13px;font-weight:600;cursor:pointer;transition:all 0.2s}
.bibtex-btn:hover{background:var(--gradient-1);color:var(--brand)}

/* Filter tags */
.filter-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.filter-tag{display:inline-block;padding:6px 16px;border-radius:999px;background:var(--badge-bg);border:1px solid var(--border);color:var(--muted);font-size:14px;font-weight:600;cursor:pointer;transition:all 0.2s}
.filter-tag:hover,.filter-tag.active{background:linear-gradient(135deg,var(--brand),var(--accent));color:var(--btn-text);border-color:transparent}

/* Stats strip */
.stats-strip{display:flex;justify-content:space-around;gap:16px;padding:20px;margin-bottom:0}
.stat-item{text-align:center}
.stat-number{font-size:28px;font-weight:800;color:var(--brand);line-height:1.2}
.stat-label{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:0.05em}
@media (max-width:900px){.stats-strip{flex-wrap:wrap}.stat-item{flex:1 1 40%}}

/* Skip link for accessibility */
.skip-link{position:absolute;top:-40px;left:0;background:var(--brand);color:var(--btn-text);padding:8px 16px;z-index:100;font-weight:700;border-radius:0 0 8px 0;transition:top 0.2s}
.skip-link:focus{top:0;text-decoration:none}

/* Blog card template */
.blog-card-new{border:2px dashed var(--border);background:transparent;border-radius:var(--radius);padding:40px 22px;text-align:center;cursor:pointer;transition:all 0.2s}
.blog-card-new:hover{border-color:var(--brand);background:var(--gradient-1)}

/* Blog article */
.blog-article{max-width:780px;margin:0 auto;line-height:1.85;font-size:17px}
.blog-article h2{font-size:24px;margin:48px 0 16px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.blog-article h3{font-size:20px;margin:36px 0 12px}
.blog-article h4{font-size:17px;margin:24px 0 8px;font-weight:700}
.blog-article p{margin:0 0 18px;color:var(--text)}
.blog-article ul,.blog-article ol{color:var(--text);margin:0 0 18px;padding-left:24px}
.blog-article li{margin-bottom:6px}
.blog-date{color:var(--muted);font-size:14px;margin-bottom:4px}
.blog-tags{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0 32px}
.blog-figure{margin:32px 0;text-align:center}
.blog-figure svg{max-width:100%;height:auto}
.blog-caption{font-size:14px;color:var(--muted);margin-top:10px;font-style:italic;text-align:center}
.blog-equation{margin:24px 0;padding:16px 20px;background:var(--card);border:1px solid var(--border);border-radius:12px;overflow-x:auto;text-align:center}
.blog-callout{margin:24px 0;padding:18px 22px;border-left:4px solid var(--brand);background:var(--badge-bg);border-radius:0 12px 12px 0}
.blog-callout-title{font-weight:700;margin-bottom:8px;color:var(--brand)}
.blog-ref-list{font-size:14px;line-height:1.8;color:var(--muted)}
.blog-ref-list li{margin-bottom:10px}
.blog-toc{margin:24px 0 40px;padding:20px 24px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}
.blog-toc-title{font-weight:700;margin-bottom:10px;font-size:15px;text-transform:uppercase;letter-spacing:0.08em;color:var(--muted)}
.blog-toc a{color:var(--text);font-size:15px}
.blog-toc a:hover{color:var(--brand)}
.blog-toc ul{list-style:none;padding-left:0;margin:0}
.blog-toc ul ul{padding-left:20px}
.blog-toc li{margin-bottom:5px}
.blog-code{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px;overflow-x:auto;font-family:'Fira Code',Consolas,Monaco,monospace;font-size:14px;margin:18px 0;color:var(--text);line-height:1.6;white-space:pre}
.blog-code .comment{color:var(--muted)}
.blog-code .keyword{color:var(--accent)}
.blog-code .string{color:var(--brand)}
.blog-table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.blog-table th{text-align:left;padding:12px 14px;border-bottom:2px solid var(--brand);color:var(--brand);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:0.05em}
.blog-table td{padding:10px 14px;border-bottom:1px solid var(--border);color:var(--text)}
.blog-table tr:hover td{background:var(--gradient-1)}

/* Tablet breakpoint */
@media (max-width:600px){.stats-strip{flex-direction:column;gap:12px}.stat-item{flex:1 1 100%}.pub-header{flex-direction:column}.h1{font-size:28px}.h2{font-size:22px}.profile-photo{width:150px;height:150px}.blog-article{font-size:16px}.blog-table{font-size:13px}}