:root{
  /* Max Planck Institute for Informatics inspired palette (experimental) */
  --mpi-blue:#005AA4;
  --mpi-blue-dark:#00467E;
  --mpi-yellow:#F6C700;

  --bg:#ffffff;
  --text:#111827;
  --muted:#5b6472;
  --border:#d9e2f0;
  --soft:#f4f8ff;

  --link: var(--mpi-blue);
  --link-hover: var(--mpi-blue-dark);

  --maxw: 980px;
  --radius: 12px;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  line-height:1.55;

::selection{ background: rgba(246,199,0,.45); }

:focus-visible{
  outline: 3px solid rgba(246,199,0,.75);
  outline-offset: 2px;
  border-radius: 8px;
}

}

/* Accessibility */
.skip-link{
  position:absolute;
  left: -999px;
  top: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  z-index: 1000;
}
.skip-link:focus{ left: 12px; border-color: rgba(0,90,164,.45); }

/* Header (minimal, responsive) */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  padding-bottom: 12px;
  position: relative;
}

.brand-title{
  font-weight: 720;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.brand-subtitle{
  font-size: .92rem;
  color: var(--muted);
  margin-top: 2px;
}

.site-nav{
  display:flex;
  align-items:center;
  gap: 10px;
}

.site-nav a{
  text-decoration:none;
  color: var(--text);
  padding: 6px 10px;
  border-radius: 999px;
}
.site-nav a:hover{ background: rgba(0,90,164,.08); text-decoration:none; }

.nav-toggle{
  display:none;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  padding: 10px 11px;
  cursor: pointer;
}
.nav-toggle:hover{ background: rgba(0,90,164,.06); }

.nav-toggle-bars{
  display:block;
  width: 18px;
  height: 12px;
  position: relative;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:2px;
  background: var(--text);
  border-radius: 999px;
}
.nav-toggle-bars::before{ top: 1px; box-shadow: 0 5px 0 0 var(--text); }
.nav-toggle-bars::after{ bottom: 1px; }

section{ scroll-margin-top: 84px; }

a{ color: var(--link); text-decoration: none; }
a:hover{ text-decoration: none; color: var(--link-hover); }

.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px;
}

.intro{
  padding-top: 26px;
  padding-bottom: 18px;
}

h1{
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  letter-spacing: -0.02em;
  margin: 0;
}

.intro p{
  margin: .7rem 0 0 0;
  max-width: 75ch;
  color: var(--muted);
  font-size: 1.02rem;
}

.section{
  padding: 26px 0;
  border-top: 1px solid var(--border);
}
.section:first-of-type{
  border-top: 0;
}

h2{
  font-size: 1.3rem;
  margin: 0 0 14px 0;
  letter-spacing: -0.01em;
}

.about-grid{
  display:grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  align-items: start;
}

.about-photo{
  width: 160px;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display:block;
}

.about p{ margin: 0 0 10px 0; }
.about ul{ margin: 8px 0 0 18px; padding:0; }
.about li{ margin: 4px 0; }

.subtle{
  color: var(--muted);
}

.callout{
  margin-top: 14px;
  padding: 12px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--soft);
}

.news-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap: 4px;
}

.news-item{
  display:flex;
  gap: 12px;
  align-items: baseline;
}

.news-date{
  color: var(--muted);
  min-width: 92px;
  font-size: .95rem;
}

.pub-controls{
  display: grid;
  grid-template-columns: 1.2fr .6fr .7fr auto auto auto;
  gap: 10px;
  align-items: end;
  margin: 12px 0 14px 0;
}

.control{
  display: grid;
  gap: 6px;
  min-width: 0;
}

.control span{
  font-size: .9rem;
  color: var(--muted);
}

.control input,
.control select{
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 10px;
  background: #fff;
  font: inherit;
  min-width: 0;
}

.topic-details{
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  padding: 8px 10px;
  height: fit-content;
}
.topic-details > summary{
  cursor: pointer;
  list-style: none;
  color: var(--muted);
  font-size: .9rem;
}
.topic-details > summary::-webkit-details-marker{ display:none; }

.topic-list{
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  margin-top: 10px;
  max-height: 220px;
  overflow: auto;
  padding-right: 6px;
}

.topic-item{
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: .95rem;
  color: #111827;
  user-select: none;
}
.topic-item input{ transform: translateY(1px); }

.btn-small{
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  cursor: pointer;
  height: fit-content;
}
.btn-small:hover{ background: var(--soft); }

.pub-count{
  color: var(--muted);
  font-size: .9rem;
  white-space: nowrap;
  height: fit-content;
  padding-bottom: 2px;
}

@media (max-width: 900px){
  .pub-controls{
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: auto;
    align-items: end;
  }
  .topic-details{ grid-column: 1 / -1; }
  .pub-count{ grid-column: 1 / -1; }
}

@media (max-width: 720px){
  .nav-toggle{ display:block; }
  .site-nav{
    display:none;
    position:absolute;
    top: calc(100% + 10px);
    left: 18px;
    right: 18px;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 14px 40px rgba(0,0,0,.08);
  }
  .site-nav.open{ display:flex; }
  .site-nav a{ padding: 10px 12px; border-radius: 10px; }
}

.pub-list{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.pub-card{
  display:grid;
  /* Give media more horizontal room (helps wide images/GIFs/videos) */
  grid-template-columns: clamp(168px, 22vw, 240px) 1fr;
  align-items:stretch;

  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow:hidden;
  background: #fff;

  /* Fixed vertical size for uniform scanning */
  min-height: 168px;
}

.pub-thumb{
  background: var(--soft);
  border-right: 1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 8px;
  box-sizing: border-box;
}

.pub-thumb img,
.pub-thumb video{
  width: 100%;
  height: 100%;
  object-fit: contain;
  display:block;
}

.pub-body{
  padding: 12px 14px;
  display:flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
}

.pub-title{
  margin: 0;
  font-weight: 650;
  font-size: 1.02rem;
  line-height: 1.25;
}

.pub-title a{ text-decoration: none; }
.pub-title a:hover{ text-decoration: underline; color: var(--link-hover); }

.pub-authors,
.pub-venue{
  margin: .25rem 0 0 0;
  font-size: .95rem;
}

.pub-authors{ color: #374151; }
.pub-venue{ color: var(--muted); }

.clamp-1, .clamp-2{
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.clamp-1{ -webkit-line-clamp: 1; }
.clamp-2{ -webkit-line-clamp: 2; }

/* Authors: wrap instead of being cut off (still uniform via 2-line clamp) */
.pub-authors{ overflow-wrap: anywhere; word-break: break-word; }
.pub-authors.clamp-1{ -webkit-line-clamp: 2; }

.pub-links{
  margin-top: auto;
  padding-top: 10px;
  display:flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.pub-links a{
  font-size: .9rem;
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
  background: #fff;
}
.pub-links a:hover{ background: rgba(0,90,164,.06); border-color: rgba(0,90,164,.35); }

.teaching-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap: 10px;
}

.teaching-list li{
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}

.when{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
  color: var(--muted);
  margin-right: .55rem;
  white-space: nowrap;
}

.footer{
  padding: 18px 0 28px 0;
  color: var(--muted);
  font-size: .95rem;
}


/* Inputs: subtle MPI blue focus */
.control input:focus,
.control select:focus{
  border-color: rgba(0,90,164,.55);
  box-shadow: 0 0 0 3px rgba(0,90,164,.12);
  outline: none;
}

@media (max-width: 640px){
  .about-grid{ grid-template-columns: 1fr; }
  .about-photo{ width: 140px; }
  .news-item{ flex-direction: column; gap: 4px; }
  .news-date{ min-width: auto; }

  .pub-card{ grid-template-columns: 1fr; min-height: 240px; }
  .pub-thumb{
    border-right: 0;
    border-bottom: 1px solid var(--border);
    /* Slightly taller media area on mobile for better legibility */
    height: 180px;
    padding: 6px;
  }
}