:root {
  --ink: #1a1a2e;
  --muted: #5b5f77;
  --accent: #7a3ff2;
  --accent-dark: #5c2ad1;
  --accent-soft: #f1ebfe;
  --border: #e7e6ef;
  --bg: #fbfaff;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.title, .subtitle {
  font-family: 'Noto Sans', sans-serif;
}

/* ---------- Header / Hero ---------- */
.hero.publication-hero {
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  padding-top: 3rem;
  padding-bottom: 2.5rem;
}

.venue-badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
}

.publication-title {
  font-weight: 800;
  font-size: 2.1rem;
  line-height: 1.3;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.author-block {
  margin-top: 1.6rem;
  font-size: 1.08rem;
}

.author-block a {
  color: var(--ink);
  font-weight: 600;
  border-bottom: 1px solid transparent;
}

.author-block a:hover {
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
}

.author-block span {
  font-weight: 600;
}

.affil-block {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.corresponding-note {
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.link-buttons {
  margin-top: 1.8rem;
}

.link-buttons .button {
  border-radius: 999px;
  font-weight: 600;
  margin: 0.25rem;
  border: 1px solid var(--border);
  background: white;
  color: var(--ink);
  transition: all 0.15s ease;
}

.link-buttons .button:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
  transform: translateY(-1px);
}

.link-buttons .button.is-dark-cta {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}

.link-buttons .button.is-dark-cta:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: white;
}

/* ---------- Sections ---------- */
section.content-section {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

section.content-section:not(:last-of-type) {
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-weight: 800;
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-title::before {
  content: "";
  width: 6px;
  height: 1.5rem;
  background: var(--accent);
  border-radius: 3px;
  display: inline-block;
}

.abstract-text {
  font-size: 1.08rem;
  line-height: 1.75;
  color: #333;
  max-width: 880px;
  margin: 0 auto;
}

.figure-frame {
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  box-shadow: 0 2px 14px rgba(30, 20, 60, 0.04);
}

.figure-frame img {
  border-radius: 6px;
}

.figure-caption {
  font-size: 0.92rem;
  color: var(--muted);
  margin-top: 1rem;
  line-height: 1.6;
}

.figure-caption b {
  color: var(--ink);
}

.finding-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.6rem;
  height: 100%;
}

.finding-card .tag-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 50%;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.results-table-wrap {
  overflow-x: auto;
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  margin-bottom: 1.75rem;
}

table.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

table.results-table caption {
  text-align: left;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--ink);
}

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

table.results-table th {
  color: var(--muted);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}

table.results-table td:first-child, table.results-table th:first-child {
  text-align: left;
}

table.results-table tr.model-row td {
  font-weight: 700;
  background: var(--accent-soft);
  color: var(--accent-dark);
}

table.results-table td.best {
  font-weight: 800;
  color: var(--accent-dark);
}

.method-eq {
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem 1.75rem;
  font-size: 1.05rem;
  text-align: center;
  margin: 1.5rem 0;
}

.bibtex-box {
  position: relative;
  background: #16151f;
  color: #e7e6f0;
  border-radius: 14px;
  padding: 1.5rem;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  overflow-x: auto;
  white-space: pre;
}

.copy-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.copy-btn:hover {
  background: var(--accent-dark);
}

footer.site-footer {
  background: var(--ink);
  color: #cfcbe0;
  padding: 2.2rem 1rem;
  text-align: center;
  font-size: 0.88rem;
}

footer.site-footer a {
  color: #cfcbe0;
  text-decoration: underline;
}