/* Minimal research page styles */
:root {
  --bg: #FAFAF7;
  --text: #2D2D2D;
  --muted: #666666;
  --border: #e6e6e6;
  --accent: #0f62fe;
  --card: #fafafa;
  --shadow: 0 1px 2px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #FAFAF7;
    --text: #2D2D2D;
    --muted: #666666;
    --border: #e6e6e6;
    --accent: #0f62fe;
    --card: #fafafa;
    --shadow: 0 1px 2px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, -apple-system, Segoe UI, Roboto, Inter, Helvetica, Arial, system-ui, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  text-rendering: optimizeLegibility;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px;
}

.narrow { max-width: 760px; }

h1, h2, h3 { line-height: 1.2; }
h1 { font-size: 2.2rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.6rem; margin: 1.8rem 0 0.8rem; }

.site-header { padding: 48px 0 28px; border-bottom: 1px solid var(--border); }
.title { letter-spacing: -0.02em; }
.subtitle { color: var(--muted); margin: 6px 0 12px; }
.authors, .affiliations { color: var(--text); margin: 6px 0; }
.dot { color: var(--border); padding: 0 8px; }

.links { margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  background: transparent;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.btn.small { padding: 6px 10px; font-size: 0.9rem; }

.section { padding: 32px 0; }
.teaser img, .teaser svg { width: 100%; height: auto; border: 1px solid var(--border); border-radius: 10px; background: var(--card); display: block; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: stretch;
}

@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }

@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

.card { margin: 0; }
.media {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.placeholder { background: repeating-linear-gradient(45deg, var(--card), var(--card) 10px, transparent 10px, transparent 20px); }
figcaption { color: var(--muted); font-size: 0.95rem; margin-top: 6px; }

.bibtex { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 12px; }
pre { margin: 0; overflow-x: auto; }

.site-footer { border-top: 1px solid var(--border); padding: 22px 0 36px; color: var(--muted); font-size: 0.95rem; }

a { color: var(--accent); }
code { background: var(--card); padding: 2px 6px; border-radius: 6px; border: 1px solid var(--border); }

/* Responsive video embed */
.video {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  overflow: hidden;
}
.video iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
  display: block;
}

/* Print styles */
@media print {
  .links, .teaser, button { display: none !important; }
  .section { padding: 10px 0; }
  a::after { content: " (" attr(href) ")"; font-size: 90%; color: var(--muted); }
}