:root {
  --bg: #fff;
  --fg: #222;
  --accent: #0057b7;
  --muted: #666;
  --border: #ddd;
  --card-bg: #f8f9fa;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; color: var(--fg); line-height: 1.6; max-width: 960px; margin: 0 auto; padding: 2rem 1.5rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 2rem; font-weight: 300; margin-bottom: 0.25rem; }
h2 { font-size: 1.5rem; font-weight: 400; margin: 2rem 0 0.75rem; border-bottom: 1px solid var(--border); padding-bottom: 0.25rem; }
h3 { font-size: 1.1rem; font-weight: 600; margin: 1.5rem 0 0.5rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.85rem; }
.subtitle { color: var(--muted); font-size: 1.1rem; margin-bottom: 2rem; }
.conf-list { list-style: none; }
.conf-list li { padding: 0.75rem 0; border-bottom: 1px solid var(--border); }
.conf-list li:last-child { border-bottom: none; }
.conf-title { font-weight: 600; font-size: 1.1rem; }
.conf-meta { color: var(--muted); font-size: 0.9rem; }
.paper { margin-bottom: 1.5rem; padding: 1rem; background: var(--card-bg); border-radius: 6px; }
.paper-title { margin-bottom: 0.25rem; }
.paper-authors { color: var(--muted); font-size: 0.9rem; margin-bottom: 0.5rem; }
.paper-abstract { font-size: 0.9rem; line-height: 1.5; }
.paper-keywords { font-size: 0.85rem; color: var(--muted); margin-top: 0.5rem; }
.paper-keywords span { background: #e9ecef; padding: 0.15rem 0.5rem; border-radius: 3px; margin-right: 0.25rem; display: inline-block; margin-bottom: 0.25rem; }
.badge { display: inline-block; font-size: 0.75rem; padding: 0.1rem 0.4rem; border-radius: 3px; background: #e9ecef; color: var(--muted); margin-left: 0.5rem; }
.paper-title { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.5rem; }
.paper-title-text { font-weight: 600; font-size: 1.05rem; }
.pdf-link { flex-shrink: 0; display: inline-flex; align-items: center; color: #c0392b; opacity: 0.8; }
.pdf-link:hover { opacity: 1; text-decoration: none; }
.pdf-link svg { width: 22px; height: 22px; }
nav { margin-bottom: 2rem; font-size: 0.9rem; }
nav a { margin-right: 0.5rem; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.85rem; }
.stats { display: flex; gap: 2rem; margin: 1rem 0 2rem; }
.stat { text-align: center; }
.stat-num { font-size: 2rem; font-weight: 300; color: var(--accent); }
.stat-label { font-size: 0.8rem; color: var(--muted); text-transform: uppercase; }