:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5b5b5b;
  --accent: #2f5fd6;
  --border: #e2e2e2;
  --code-bg: #f5f5f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

.hero {
  text-align: center;
  margin-bottom: 2.5rem;
}

h1 {
  font-size: 2.6rem;
  font-weight: 500;
  margin: 0 0 0.5rem;
}

.subtitle {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 1.5rem;
}

.authors {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0 1.25rem;
  padding: 0;
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
}

.authors sup {
  font-size: 0.7em;
}

.authors a {
  text-decoration: none;
}

.authors a:hover {
  text-decoration: underline;
}

.affiliation {
  color: var(--muted);
  margin: 0 0 1rem;
  font-size: 0.95rem;
}

.venue {
  color: var(--muted);
  font-size: 1rem;
  margin: 0 0 0.75rem;
}

.footnote {
  color: var(--muted);
  margin: 0 0 1.5rem;
  font-size: 0.8rem;
}

.links {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1.2rem;
  border-radius: 999px;
  border: none;
  background: #363636;
  color: #ffffff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background 0.15s ease;
}

.button:hover {
  background: #000000;
}

.button svg {
  width: 1em;
  height: 1em;
}

.teaser {
  margin: 2.5rem 0;
  text-align: center;
}

figure {
  margin: 0;
}

figure img {
  display: block;
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border);
}

figcaption {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
}

.teaser-caption {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  font-style: italic;
  color: var(--muted);
  text-align: center;
}

.figure-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 2.5rem;
}

.figure-col h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.figure-col p {
  font-size: 0.88rem;
  color: var(--fg);
  margin: 0 0 1rem;
}

.figure-col img {
  display: block;
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border);
}

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

  .figure-columns {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

h2 {
  font-size: 1.3rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
  margin: 2.5rem 0 1rem;
}

.abstract p {
  color: var(--fg);
  text-align: justify;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  margin: 0 0 2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
}

.stat {
  flex: 1 1 160px;
  padding: 0 1.5rem;
}

.stat + .stat {
  border-left: 1px solid var(--border);
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg);
}

.stat-label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.35;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0 0 0.5rem;
}

caption {
  caption-side: top;
  text-align: left;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
  border-bottom: 2px solid var(--border);
}

td:not(:first-child), th:not(:first-child) {
  text-align: right;
}

.note {
  font-size: 0.88rem;
  color: var(--muted);
}

.bibtex pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
}

footer {
  margin-top: 3rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.pischool-link {
  display: inline-block;
  margin-bottom: 1rem;
}

.pischool-logo {
  height: 32px;
  width: auto;
}

a {
  color: var(--accent);
}