html {
  color-scheme: light;
}

:root{
  --accent:#6a0dad;
  --accent-2:#9b59ff;

  --ink:#0f172a;
  --muted:#6b7280;

  --bg-start:#f6f7fb;
  --bg-end:#edf2ff;

  --card:#ffffffcc;
  --card-dark:#0b0f1acc;

  --radius:18px;
  --ring:0 0 0 3px rgba(106,13,173,.18);
  --elev-1:0 8px 24px rgba(2,12,27,.08);
  --elev-2:0 14px 36px rgba(2,12,27,.12);
}

/* Base */
*{ box-sizing:border-box }
html{ scroll-behavior:smooth }
body {
  margin:0;
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: clamp(14px, 1.2vw, 18px); /* reduced font size */
  line-height: 1.6;
  color:var(--ink);
  background: linear-gradient(180deg, #faf5ff 0%, #f3f4f6 100%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{ max-width:100%; display:block }
a{ color:inherit; text-decoration:none }

.container{ max-width:1200px; margin:0 auto; padding:0 16px }
.section{ scroll-margin-top:90px }

/* Topbar */
.topbar{
  position:sticky; top:0; z-index:1000;
  backdrop-filter:saturate(180%) blur(12px);
  background:rgba(255,255,255,.74);
  border-bottom:1px solid rgba(0,0,0,.06);
}
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:12px; padding:10px 0;
}
.brand{ display:flex; align-items:center; gap:10px; font-weight:800; letter-spacing:.2px }
.brand-name{
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
  font-size:18px;
}

/* Nav */
.nav{ display:flex; align-items:center; gap:12px }
.nav-link{ padding:9px 10px; border-radius:10px }
.nav-link:hover{ background:rgba(106,13,173,.08) }

.nav-toggle{ display:none; border:0; background:transparent; padding:8px; cursor:pointer }
.nav-toggle-bar{ display:block; width:22px; height:2px; background:#3a3a3a; margin:5px 0; border-radius:2px }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:10px 16px; font-weight:700; border-radius:999px;
  border:1px solid transparent; transition:transform .15s ease, box-shadow .2s ease, opacity .2s ease;
}
.btn.small{ padding:8px 12px; font-size:15px }
.btn.primary{
  color:#fff;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  box-shadow:0 6px 18px rgba(106,13,173,.25);
}
.btn.ghost{
  background:#fff; color:var(--accent);
  border-color:rgba(106,13,173,.25);
  box-shadow:0 4px 12px rgba(106,13,173,.10);
}

a:focus-visible, .btn:focus-visible, .nav-link:focus-visible{ box-shadow:var(--ring) }

/* Hero */
.hero{
  position:relative; overflow:hidden;
  display:grid; grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr); gap:36px;
  border-radius:var(--radius); padding:44px; box-shadow:var(--elev-1);
  background:linear-gradient(135deg,#f6edff 0%, #eef6ff 100%);
  border:1px solid rgba(106,13,173,.16);
}
.title{
  margin:0 0 26px;
  font-size:clamp(28px,3.8vw,42px);
  line-height:1.1; letter-spacing:.2px; color:#111219;
}
.subtitle{ margin:0 0 18px; font-weight:600; color:#1f2937 }

/* Social pills */
.social{ display:flex; gap:12px; flex-wrap:wrap; margin-top:8px }
.icon-pill{
  display:inline-flex; align-items:center; gap:10px;
  padding:10px 14px; border-radius:14px;
  background:#faf8ff; border:1px solid rgba(106,13,173,.18);
  box-shadow:0 6px 16px rgba(106,13,173,.10);
  font-weight:700;
  transition:transform .12s ease, box-shadow .2s ease;
}
.icon-pill:hover{ transform:translateY(-1px); box-shadow:0 10px 22px rgba(106,13,173,.16) }
.icon-pill svg{ width:20px; height:20px; fill:#5b21b6 }

/* Photo */
.hero-photo{ display:flex; align-items:center; justify-content:center }
.photo{
  width:clamp(240px,26vw,340px); height:clamp(240px,26vw,340px);
  border-radius:50%; object-fit:cover;
  border:6px solid rgba(255,255,255,.92);
  box-shadow:0 18px 36px rgba(0,0,0,.18);
  outline:10px solid rgba(106,13,173,.10);
}

/* Cards (all use Publications style background) */
.card{
  margin:26px 0; padding:28px 30px;
  border-radius:16px;
  background:linear-gradient(135deg,#f6edff 0%, #eef2ff 100%);
  border:1px solid rgba(15,23,42,.06);
  box-shadow:var(--elev-1);
  transition:transform .15s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(2,12,27,.10);
  border-color:rgba(106,13,173,.22);
}

/* Headings */
h2{
  margin:0 0 14px; font-size:clamp(18px,2vw,24px);
  color:#111827; position:relative; padding-bottom:8px;
}
h2::after{
  content:""; position:absolute; left:0; bottom:0; width:100px;
  height:2px; background:#6a0dad; border-radius:2px;
}

/* Lists with colorful items */
ol.clean-list{ list-style:decimal; margin:14px 0 0 1.25rem; padding:0 }
ol.clean-list li{
  margin:12px 0; padding:14px 16px;
  border-radius:12px; border:1px solid rgba(17,24,39,.08);
}

/* Colorful backgrounds for different sections */
#publications ol.clean-list li{ background:linear-gradient(135deg,#fdf4ff 0%, #f3e8ff 100%) }
#posters      ol.clean-list li{ background:linear-gradient(135deg,#fdf4ff 0%, #f3e8ff 100%) }
#news         ol.clean-list li{ background:linear-gradient(135deg,#fdf4ff 0%, #f3e8ff 100%) }
#education    .edu-block       { background:linear-gradient(135deg,#fdf4ff 0%, #f3e8ff 100%) }

.paper-link{ text-decoration:underline; text-underline-offset:3px }
.paper-link:hover{ text-decoration-thickness:2px; color:#5b21b6 }

.meta{
  display:block;
  color:#374151;
  font-size:18px;
  font-weight:600;
  margin-top:6px;
}

/* Education blocks */
.edu-block{
  padding:14px 16px;
  border-radius:12px;
  border:1px solid rgba(17,24,39,.08);
}

/* Grids */
.grid{ display:grid; gap:14px }
.grid.cols-2{ grid-template-columns:repeat(2,minmax(0,1fr)) }
.grid.cols-3{ grid-template-columns:repeat(3,minmax(0,1fr)) }

/* Contact */
.contact-line{ margin:0 }
.email-link{
  font-weight:800; font-size:clamp(16px,2vw,20px);
  color:#5b21b6; text-decoration:underline; text-underline-offset:4px;
}

/* Footer */
.footer{ text-align:center; margin:28px 0 44px; color:var(--muted); font-size:13px }

/* Responsive */
@media (max-width: 1080px){
  .hero{ grid-template-columns:1fr; padding:34px }
  .hero-photo{ order:-1 }
}
@media (max-width: 820px){
  .nav-toggle{ display:block }
  .nav{
    position:absolute; top:62px; left:0; right:0;
    opacity:0; visibility:hidden; pointer-events:none;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid rgba(0,0,0,.06);
    padding:10px 16px; gap:8px; flex-direction:column;
  }
  .nav.open{ opacity:1; visibility:visible; pointer-events:auto }
  .no-scroll{ overflow:hidden }
}
@media (max-width: 680px){
  .grid.cols-3{ grid-template-columns:1fr 1fr }
}
@media (max-width: 520px){
  body{ font-size:14px }
  .grid.cols-2,.grid.cols-3{ grid-template-columns:1fr }
}