:root {
  --navy:#1a2e4a;--navy-light:#2c4a6e;--accent:#2c7bb6;--accent-hover:#1a5c8f;
  --bg:#f9f8f6;--surface:#ffffff;--border:#dde3ea;--text:#222c38;--muted:#5a6b7d;
  --tag-bg:#eaf2fb;--tag-color:#1a5c8f;
  --collab-gold:#e3c475;--collab-slate:#606a7b;
  --gold-bg:#f7edcb;--gold-border:#e0c069;--gold-text:#7a5c10;
  --serif:'Lora',Georgia,serif;--sans:'Source Sans 3',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg)}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hover);text-decoration:underline}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.25}
ul{list-style:none}
.page-wrapper{max-width:1100px;margin:0 auto;padding:2.5rem 1.5rem 4rem}
.hero-section{display:grid;grid-template-columns:240px 1fr;gap:2.5rem;align-items:end;padding-bottom:2rem;border-bottom:2px solid var(--border)}
.sidebar{display:flex;flex-direction:column;align-items:center;gap:1.2rem}
.avatar-wrap{width:160px;height:160px;border-radius:50%;overflow:hidden;border:4px solid var(--collab-gold);background:var(--navy-light);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.avatar-wrap img{width:100%;height:100%;object-fit:cover}
.avatar-initials{font-family:var(--serif);font-size:2.8rem;font-weight:600;color:rgba(255,255,255,.85)}
.social-links{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;width:100%}
.social-btn{display:inline-flex;align-items:center;gap:.35rem;background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:.4rem .75rem;font-size:.82rem;font-weight:600;color:var(--navy);transition:background .2s,border-color .2s,color .2s}
.social-btn:hover{background:var(--navy);color:#fff;border-color:var(--navy);text-decoration:none}
.social-btn svg{width:14px;height:14px;fill:currentColor;flex-shrink:0}
/* Social chips: 2x2 equal-width grid (desktop), pill look like the interest chips */
.social-links{display:grid;grid-template-columns:1fr 1fr;gap:.45rem}
.social-links .social-btn{justify-content:center;gap:.4rem;background:var(--gold-bg);border-color:var(--gold-border);border-radius:20px;padding:.3rem .82rem;font-size:.8rem;color:var(--gold-text)}
.social-links .social-btn:hover{background:var(--collab-gold);color:var(--navy);border-color:var(--collab-gold)}
.bio-panel{padding-top:.5rem}
.bio-panel h1{font-size:2.1rem;color:var(--navy);margin-bottom:.15rem}
.role-line{font-size:1.05rem;font-weight:600;color:var(--accent);margin-bottom:.5rem}
.affil-line{font-size:.95rem;color:var(--muted);margin-bottom:1.4rem}
.bio-panel p{color:var(--text);font-size:.98rem}
.badge-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.2rem}
.badge{display:inline-flex;align-items:center;gap:.4rem;background:var(--tag-bg);color:var(--tag-color);border-radius:20px;padding:.28rem .85rem;font-size:.82rem;font-weight:600;border:1px solid #c2ddf0}
.badge-icon{width:14px;height:14px;flex-shrink:0;background-color:currentColor;-webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center}
.main-content{display:grid;grid-template-columns:1fr 300px;gap:2.5rem;margin-top:2rem}
.primary-col>section{margin-bottom:2.4rem}
.primary-col>section:last-child{margin-bottom:0}
.secondary-col{align-self:stretch}
.secondary-sticky{position:sticky;top:1.2rem;display:flex;flex-direction:column;gap:.9rem}
section>h2{font-size:1.3rem;color:var(--navy);border-bottom:2px solid var(--accent);padding-bottom:.4rem;margin-bottom:1.3rem;display:inline-block}
/* ══ HIDDEN SECTIONS — to show, remove class "section-hidden" from the element ══ */
.section-hidden { display: none !important; }

/* TALKS */
.talk-list { display:flex;flex-direction:column;gap:1rem }
.talk-item { padding:.9rem 1rem;background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;font-size:.93rem }
.talk-item .talk-title { font-weight:600;color:var(--text);margin-bottom:.15rem }
.talk-item .talk-event { color:var(--muted);font-size:.88rem }
.talk-item .talk-date { color:var(--muted);font-size:.82rem;margin-top:.2rem }

/* AWARDS */
.award-list { display:flex;flex-direction:column;gap:.8rem }
.award-item { display:flex;gap:1rem;align-items:flex-start;padding:.8rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:8px }
.award-year { font-size:.82rem;font-weight:700;color:var(--accent);min-width:2.8rem;padding-top:.1rem }
.award-body .award-title { font-weight:600;color:var(--text);font-size:.93rem }
.award-body .award-org { color:var(--muted);font-size:.87rem }

/* TEACHING */
.teaching-list { display:flex;flex-direction:column;gap:.9rem }
.course-item { padding:.9rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:8px;font-size:.93rem }
.course-item .course-name { font-weight:600;color:var(--text) }
.course-item .course-meta { color:var(--muted);font-size:.87rem;margin-top:.2rem }
.course-item .course-role { display:inline-block;background:var(--tag-bg);color:var(--tag-color);border-radius:4px;padding:.1rem .5rem;font-size:.78rem;font-weight:600;margin-top:.3rem }

/* SOFTWARE */
.software-list { display:flex;flex-direction:column;gap:.8rem }
.software-item { padding:.9rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:8px;font-size:.93rem }
.software-item .sw-name { font-weight:700;color:var(--text) }
.software-item .sw-desc { color:var(--muted);font-size:.88rem;margin-top:.15rem }
.software-item .sw-links { margin-top:.4rem;display:flex;gap:.5rem }
.sw-badge { display:inline-block;background:#f0f0f0;color:#333;border-radius:4px;padding:.1rem .55rem;font-size:.76rem;font-weight:600 }

/* STUDENTS */
.students-list { display:flex;flex-direction:column;gap:.7rem }
.student-item { padding:.75rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:8px;font-size:.92rem }
.student-item .student-name { font-weight:600;color:var(--text) }
.student-item .student-meta { color:var(--muted);font-size:.87rem;margin-top:.15rem }

/* EXPERIENCE */
.exp-list { display:flex;flex-direction:column;gap:1.1rem }
.exp-item { display:flex;gap:1rem;align-items:flex-start }
.exp-dot { width:10px;height:10px;border-radius:50%;background:var(--accent);margin-top:.45rem;flex-shrink:0 }
.exp-role { font-weight:700;font-size:.95rem;color:var(--text) }
.exp-org { font-size:.9rem;color:var(--muted) }
.exp-period { font-size:.82rem;font-weight:600;color:var(--accent) }
.exp-summary { font-size:.88rem;color:var(--text);margin-top:.3rem;line-height:1.6 }
.exp-highlights { margin-top:.4rem;display:flex;flex-direction:column;gap:.25rem }
.exp-highlights li { display:flex;align-items:baseline;gap:.5rem;font-size:.86rem;color:var(--muted) }
.exp-highlights li::before { content:'';width:5px;height:5px;background:var(--accent);border-radius:50%;flex-shrink:0;transform:translateY(-1px) }

/* SIDEBAR CV BUTTON */
.cv-btn { display:flex;align-items:center;justify-content:center;gap:.4rem;width:100%;padding:.55rem 1rem;background:var(--navy);color:#fff;border-radius:8px;font-weight:700;font-size:.88rem;transition:background .2s }
.cv-btn:hover { background:var(--navy-light);color:#fff;text-decoration:none }
.cv-btn svg { width:14px;height:14px;fill:currentColor }
.cv-icon { width:15px;height:15px;flex-shrink:0;background-color:currentColor;-webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center }
.cv-lang { display:inline-flex;align-items:center;justify-content:center;line-height:1;font-size:.68rem;font-weight:800;letter-spacing:.06em;text-indent:.06em;border:1px solid rgba(255,255,255,.55);border-radius:4px;padding:.2rem .42rem }

.pub-year{font-family:var(--sans);font-size:1.5rem;font-weight:700;color:var(--navy);display:inline-block;margin-bottom:.6rem;padding-bottom:.2rem;border-bottom:3px solid var(--collab-gold)}
#publications>h2{margin-bottom:1.8rem}
.pub-year-block + .pub-year-block{margin-top:1.8rem}
.pub-item .talk-date{font-size:.82rem;color:var(--muted);margin-top:.2rem}
.pub-type{font-family:var(--sans);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;margin:1.1rem 0 .6rem}
.pub-type.journal{color:#1a7a4a}
.pub-type.conference{color:#7b3fa0}
.pub-type.workshop{color:#b85c00}
.pub-type.preprint{color:#8a0000}
.pub-list{display:flex;flex-direction:column;gap:.75rem}
.pub-item{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.9rem 1.1rem .85rem;transition:box-shadow .2s,border-color .2s}
.pub-item:hover{box-shadow:0 2px 12px rgba(44,123,182,.1);border-color:#b0ccde}
.venue-badge{display:inline-block;font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;border-radius:5px;padding:.15rem .52rem;margin-bottom:.45rem;color:#fff}
.vb-green  {background:#1a7a4a}
.vb-teal   {background:#0e7490}
.vb-blue   {background:#1d5fa8}
.vb-purple {background:#6d28d9}
.vb-indigo {background:#3730a3}
.vb-orange {background:#b45309}
.vb-red    {background:#9b1c1c}
.vb-gray   {background:#4b5563}
.pub-title{font-family:var(--serif);font-size:.97rem;font-weight:600;color:var(--navy);margin-bottom:.28rem;line-height:1.35}
.pub-title a{color:var(--navy)}
.pub-title a:hover{color:var(--accent)}
.pub-authors{font-size:.87rem;color:var(--muted);margin-bottom:.18rem}
.pub-authors strong{color:var(--text);font-weight:700}
.pub-venue{font-size:.84rem;color:var(--muted);font-style:italic}
.pub-status{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#b45309;background:#fff4e6;border:1px solid #f0d2a8;border-radius:4px;padding:.1rem .5rem;margin-top:.4rem}
.pub-status.preprint{color:#8a0000;background:#fdf1f1;border-color:#eec4c4}
.pub-abstract{font-size:.85rem;color:var(--text);margin-top:.55rem;line-height:1.6;display:none}
.pub-abstract.open{display:block}
.pub-links{margin-top:.55rem;display:flex;gap:.45rem;flex-wrap:wrap;align-items:center}
.pub-link{font-size:.75rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase;padding:.16rem .58rem;border-radius:4px;border:1px solid var(--accent);color:var(--accent);transition:background .18s,color .18s}
.pub-link:hover{background:var(--accent);color:#fff;text-decoration:none}
.pub-doi{font-size:.8rem;color:var(--muted);margin-top:.3rem}
.pub-doi a{color:var(--muted);text-decoration:underline;text-underline-offset:2px;font-family:monospace;font-size:.78rem}
.pub-doi a:hover{color:var(--accent)}
.toggle-abstract{background:none;border:none;cursor:pointer;font-size:.78rem;font-weight:700;color:var(--muted);letter-spacing:.03em;padding:0;display:flex;align-items:center;gap:.25rem;transition:color .2s}
.toggle-abstract:hover{color:var(--accent)}
.toggle-abstract::before{content:'▶';font-size:.6rem;transition:transform .2s}
.toggle-abstract.open::before{transform:rotate(90deg)}
/* EDUCATION */
.edu-list{display:flex;flex-direction:column;gap:1rem}
.edu-item{display:flex;gap:1rem;align-items:flex-start}
.edu-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);margin-top:.45rem;flex-shrink:0}
.edu-degree{font-weight:700;font-size:.95rem;color:var(--text)}
.edu-school{font-size:.9rem;color:var(--muted)}
.edu-year{font-size:.82rem;font-weight:600;color:var(--accent)}
.edu-note{font-size:.85rem;color:var(--muted);font-style:italic}
/* ACADEMIC SERVICE */
.service-subhead{font-family:var(--sans);font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:1.4rem 0 .6rem}
.service-subhead:first-of-type{margin-top:0}
.service-list{display:flex;flex-direction:column;gap:.5rem}
.service-list li{display:flex;align-items:baseline;gap:.6rem;flex-wrap:wrap;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.6rem .95rem}
.service-venue{font-weight:600;font-size:.93rem;color:var(--text)}
.service-pub{font-size:.85rem;color:var(--muted)}
.service-year{margin-left:auto;font-family:monospace;font-size:.8rem;color:var(--muted)}
.service-contribution{flex-basis:100%;font-size:.85rem;color:var(--muted)}
.service-note{font-size:.85rem;color:var(--muted);margin-top:1rem}
/* INTERESTS */
.interests-list{display:flex;flex-direction:column;gap:.5rem}
.interests-list li{display:flex;align-items:center;gap:.6rem;font-size:.93rem;color:var(--text)}
.interests-list li::before{content:'';width:6px;height:6px;background:var(--accent);border-radius:50%;flex-shrink:0}
/* PROJECTS */
.project-list{display:flex;flex-direction:column;gap:.6rem}
.project-item{background:var(--bg);border:1px solid var(--border);border-radius:7px;padding:.65rem .9rem;font-size:.87rem}
.project-item strong{color:var(--navy);display:block;margin-bottom:.1rem}
.project-item span{color:var(--muted);font-size:.82rem}
/* NEWS */
.news-list{display:flex;flex-direction:column;gap:.9rem}
.news-item{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.8rem 1rem}
.news-date{font-size:.78rem;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.2rem}
.news-item p{font-size:.88rem;color:var(--text)}
/* SIDEBAR CARD */
.sidebar-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:1.2rem 1.2rem 1rem}
.sidebar-card>h2{font-size:1.1rem;margin-bottom:1rem}
.sidebar-card p{font-size:.88rem;line-height:1.65;color:var(--muted);margin-bottom:.25rem}
.sidebar-card p strong{color:var(--text)}
footer{background:var(--navy);color:rgba(255,255,255,.55);text-align:center;padding:1.4rem 1rem;font-size:.82rem}
footer a{color:rgba(255,255,255,.7)}
footer a:hover{color:#fff}
@media(max-width:900px){
  .hero-section{grid-template-columns:1fr;gap:1.3rem}
  .avatar-wrap{width:120px;height:120px}
  .main-content{grid-template-columns:1fr}
  .secondary-sticky{position:static}
  /* Social chips: compact icon-only round buttons on mobile (option B) */
  .social-links{display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem}
  .social-links .social-btn{width:40px;height:40px;padding:0;border-radius:50%;justify-content:center;gap:0}
  .social-links .social-label{display:none}
  .social-links .social-btn svg{width:17px;height:17px}
}