/* ── Reset & tokens ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #ffffff;
  --bg-alt:      #f8f7f5;
  --bg-card:     #ffffff;
  --text:        #0d0d14;
  --text-2:      #3d3c4a;
  --muted:       rgba(13,13,20,0.44);
  --border:      rgba(13,13,20,0.10);
  --accent:      #1a1aff;
  --accent-soft: rgba(26,26,255,0.08);
  --pro-color:   #1d4ed8;
  --pro-bg:      rgba(29,78,216,0.08);
  --con-color:   #b91c1c;
  --con-bg:      rgba(185,28,28,0.08);
  --radius:      8px;
  --radius-lg:   14px;
  --shadow:      0 2px 12px rgba(0,0,0,0.07);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.10);
  --font-sans:   'Inter', system-ui, -apple-system, sans-serif;
  --font-serif:  'Crimson Pro', Georgia, serif;
  --font-mono:   'JetBrains Mono', 'Courier New', monospace;
  --nav-h:       56px;
  --max-w:       1100px;
  --narrow:      740px;
  --canvas-bg:   #f8f7f5;
  /* "inverted" surface — dark in light mode, stays dark in dark mode */
  --inv-bg:      #0d0d14;
  --inv-text:    #ffffff;
  --inv-muted:   rgba(255,255,255,0.55);
}

[data-theme="dark"] {
  --bg:          #0d0d14;
  --bg-alt:      #13131e;
  --bg-card:     #17172a;
  --text:        #e8e8f2;
  --text-2:      #9898b8;
  --muted:       rgba(232,232,242,0.38);
  --border:      rgba(232,232,242,0.10);
  --accent:      #6666ff;
  --accent-soft: rgba(102,102,255,0.12);
  --pro-color:   #60a5fa;
  --pro-bg:      rgba(96,165,250,0.12);
  --con-color:   #f87171;
  --con-bg:      rgba(248,113,113,0.12);
  --shadow:      0 2px 12px rgba(0,0,0,0.3);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.4);
  --canvas-bg:   #13131e;
  /* stays dark even in dark mode */
  --inv-bg:      #080810;
  --inv-text:    #e8e8f2;
  --inv-muted:   rgba(232,232,242,0.45);
}

html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--bg); color: var(--text); line-height: 1.6; font-size: 15px; transition: background 0.2s, color 0.2s; }
img  { max-width: 100%; display: block; }
a    { color: inherit; }

/* ── Utility ────────────────────────────────────────────────────── */
.mono { font-family: var(--font-mono); font-size: 0.88em; }

/* ── Nav ────────────────────────────────────────────────────────── */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  transition: background 0.2s, border-color 0.2s;
}
[data-theme="dark"] .site-nav { background: rgba(13,13,20,0.88); }
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 2rem;
  height: 100%; display: flex; align-items: center; gap: 2rem;
}
.nav-brand {
  display: flex; align-items: center; gap: 0.5rem;
  font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em;
  text-decoration: none; color: var(--text);
}
.nav-logo { width: 22px; height: 22px; }
.nav-links { display: flex; gap: 1.5rem; margin-left: auto; }
.nav-links a {
  font-size: 0.88rem; color: var(--text-2); text-decoration: none;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); }

/* Dark mode toggle */
.dark-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%;
  border: 1.5px solid var(--border); background: transparent;
  cursor: pointer; color: var(--text-2); transition: all 0.15s;
  margin-left: 0.75rem; flex-shrink: 0;
}
.dark-toggle:hover { background: var(--bg-alt); color: var(--text); }
.dark-toggle .icon-moon { display: none; }
[data-theme="dark"] .dark-toggle .icon-sun  { display: none; }
[data-theme="dark"] .dark-toggle .icon-moon { display: block; }

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.55rem 1.25rem; border-radius: var(--radius);
  font-size: 0.88rem; font-weight: 500; text-decoration: none;
  cursor: pointer; border: none; transition: all 0.15s;
  font-family: var(--font-sans);
}
.btn-primary { background: var(--inv-bg); color: var(--inv-text); }
.btn-primary:hover { background: #2a2a3c; }
.btn-outline {
  background: transparent; color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-outline:hover { background: var(--bg-alt); }

/* ── Hero ────────────────────────────────────────────────────────  */
.hero {
  padding: 5rem 2rem 4rem;
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: var(--narrow); margin: 0 auto; text-align: center; }
.conf-badge {
  display: inline-block; margin-bottom: 1.25rem;
  background: var(--accent-soft); color: var(--accent);
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.05em;
  text-transform: uppercase; padding: 0.3rem 0.8rem;
  border-radius: 100px; border: 1px solid rgba(26,26,255,0.15);
}
.paper-title {
  font-family: var(--font-serif); font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 600; line-height: 1.18; letter-spacing: -0.02em;
  margin-bottom: 1.75rem;
}
.authors { margin-bottom: 2rem; }
.author-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.25rem 1.5rem; margin-bottom: 0.6rem; }
.author { font-size: 0.98rem; font-weight: 500; }
.author sup { font-size: 0.65em; color: var(--accent); margin-left: 1px; }
.affiliations { font-size: 0.78rem; color: var(--muted); white-space: nowrap; line-height: 1.8; }
.affiliations sup { font-size: 0.72em; color: var(--accent); }
.contact { font-size: 0.82rem; color: var(--muted); margin-top: 0.3rem; font-family: var(--font-mono); }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; margin-bottom: 2rem; }
.tldr {
  max-width: 600px; margin: 0 auto;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.1rem 1.4rem;
  text-align: left; display: flex; gap: 0.75rem;
}
.tldr-label {
  flex-shrink: 0; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--accent);
  padding: 0.15rem 0; margin-top: 0.05rem;
}
.tldr-text { font-size: 0.88rem; color: var(--text-2); line-height: 1.55; }

/* ── Teaser ──────────────────────────────────────────────────────  */
.teaser { padding: 3.5rem 2rem; background: var(--bg); }
.teaser .section-inner { max-width: var(--max-w); margin: 0 auto; }
.teaser-fig { }
.fig-row { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.fig-col img { border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg-alt); }
.fig-col figcaption { margin-top: 0.75rem; font-size: 0.82rem; color: var(--text-2); line-height: 1.55; }

/* ── Sections ────────────────────────────────────────────────────  */
.section { padding: 4rem 2rem; }
.section-alt { background: var(--bg-alt); }
.section-inner { max-width: var(--max-w); margin: 0 auto; }
.section-inner.narrow { max-width: var(--narrow); }
.section-heading {
  font-family: var(--font-serif); font-size: 1.75rem; font-weight: 600;
  letter-spacing: -0.02em; margin-bottom: 1.75rem;
  padding-bottom: 0.75rem; border-bottom: 1px solid var(--border);
}
.section-intro { font-size: 1rem; color: var(--text-2); margin-bottom: 2rem; max-width: 680px; }
.abstract-text {
  font-family: var(--font-serif); font-size: 1.05rem; line-height: 1.75;
  color: var(--text); margin-bottom: 1rem;
}

/* ── Method ──────────────────────────────────────────────────────  */
.method-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.method-text p { font-size: 0.93rem; color: var(--text-2); margin-bottom: 1rem; line-height: 1.65; }
.method-subhead { font-size: 1rem; font-weight: 600; margin-bottom: 0.6rem; margin-top: 1.4rem; color: var(--text); }
.method-subhead:first-child { margin-top: 0; }
.eq-box {
  background: var(--inv-bg); color: var(--inv-text);
  border-radius: var(--radius); padding: 1.25rem 1.5rem;
  margin: 1rem 0; overflow-x: auto;
}
[data-theme="dark"] .eq-box { background: #1e1e36; }
.eq-box .katex { color: #fff; }
.eq-caption { font-size: 0.82rem; color: var(--muted); margin-top: -0.25rem; }
.method-fig figcaption { margin-top: 0.6rem; font-size: 0.82rem; color: var(--text-2); line-height: 1.55; }
.method-graph-img { max-width: 280px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; padding: 1rem; }

.concept-box {
  margin-top: 3rem; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 2rem;
}
.concept-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.75rem; }
.concept-box p { font-size: 0.93rem; color: var(--text-2); line-height: 1.65; margin-bottom: 1.25rem; }
.axiom-table-wrap { overflow-x: auto; }
.axiom-table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.axiom-table th {
  text-align: left; padding: 0.6rem 1rem; font-size: 0.75rem;
  font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--muted); border-bottom: 1px solid var(--border);
}
.axiom-table td { padding: 0.7rem 1rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.axiom-table tr:last-child td { border-bottom: none; }
.axiom-table td:first-child { white-space: nowrap; }

/* ── Results ─────────────────────────────────────────────────────  */
.kpi-strip {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.kpi {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.25rem;
}
.kpi-num { display: block; font-size: 1.7rem; font-weight: 700; letter-spacing: -0.03em; line-height: 1; margin-bottom: 0.4rem; }
.kpi-label { font-size: 0.8rem; color: var(--muted); line-height: 1.4; }

.table-wrap { overflow-x: auto; margin-bottom: 2.5rem; }
.table-caption { font-size: 0.85rem; color: var(--text-2); margin-bottom: 0.75rem; line-height: 1.5; }
.results-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.results-table th {
  text-align: right; padding: 0.6rem 1rem; background: var(--bg-alt);
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.03em;
  color: var(--text-2); border-bottom: 2px solid var(--border);
}
.results-table th:first-child { text-align: left; }
.results-table td { padding: 0.6rem 1rem; border-bottom: 1px solid var(--border); text-align: right; }
.results-table td:first-child { text-align: left; font-weight: 500; }
.results-table tr.row-highlight td { background: rgba(26,26,255,0.04); font-weight: 600; }
.delta { font-size: 0.78em; color: #16a34a; font-weight: 400; }

.fig-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 2.5rem; }
.fig-pair figure img { border-radius: var(--radius); border: 1px solid var(--border); }
.fig-pair figcaption { margin-top: 0.75rem; font-size: 0.82rem; color: var(--text-2); line-height: 1.55; }

/* Case study */
.case-study {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2rem; margin-top: 0.5rem;
}
.case-study-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.75rem; }
.case-study > p { font-size: 0.93rem; color: var(--text-2); margin-bottom: 1.25rem; line-height: 1.6; }
.rank-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.rank-block { border-radius: var(--radius); border: 1.5px solid var(--border); overflow: hidden; }
.rank-grasp { border-color: rgba(22,163,74,0.3); }
.rank-raw   { border-color: rgba(185,28,28,0.3); }
.rank-block-head {
  padding: 0.6rem 1rem; font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.03em; text-transform: uppercase;
}
.rank-grasp .rank-block-head { background: rgba(22,163,74,0.08); color: #15803d; }
.rank-raw   .rank-block-head { background: rgba(185,28,28,0.08); color: #991b1b; }
.rank-block-body { padding: 0.5rem 0; }
.rank-row { display: flex; justify-content: space-between; align-items: center; padding: 0.3rem 1rem; font-size: 0.83rem; }
.model-name { color: var(--text-2); font-family: var(--font-mono); font-size: 0.78em; }
.rank-val { font-weight: 700; font-size: 0.9rem; }
.rank-verdict { padding: 0.5rem 1rem; font-size: 0.78rem; font-weight: 600; text-align: center; }
.rank-verdict-good { background: rgba(22,163,74,0.08); color: #15803d; }
.rank-verdict-bad  { background: rgba(185,28,28,0.08); color: #991b1b; }

/* ── Interactive Demo ────────────────────────────────────────────  */
.demo-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2rem; margin-bottom: 1rem;
}
.demo-motion-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-bottom: 0.4rem; }
.demo-motion { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 600; margin-bottom: 1.5rem; line-height: 1.3; }

/* Judge selector */
.judge-selector { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.pearson-logo-legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; margin-top: 0.55rem; font-size: 0.72rem; color: var(--text-2); }
.pearson-logo-legend-item { display: flex; align-items: center; gap: 0.3rem; }
.judge-btn {
  padding: 0.35rem 0.9rem; border-radius: 100px;
  border: 1.5px solid var(--border); background: transparent;
  font-size: 0.8rem; font-family: var(--font-mono); cursor: pointer;
  transition: all 0.15s; color: var(--text-2);
}
.judge-btn.active { background: var(--inv-bg); color: var(--inv-text); border-color: var(--inv-bg); }

/* W matrix heatmap */
.w-section { margin-bottom: 1.5rem; }
.w-label { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin-bottom: 0.6rem; }
.w-grid { display: inline-grid; gap: 3px; }
.w-cell {
  width: 38px; height: 38px; border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem; font-family: var(--font-mono);
  cursor: pointer; transition: transform 0.1s; position: relative;
  font-weight: 500;
}
.w-cell:hover { transform: scale(1.15); z-index: 10; }
.w-header-cell {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem; font-weight: 600; color: var(--muted);
}
.w-tooltip {
  position: fixed; background: rgba(13,13,20,0.92); color: #fff;
  border-radius: 6px; padding: 0.6rem 0.9rem; font-size: 0.8rem;
  max-width: 280px; pointer-events: none; z-index: 200;
  line-height: 1.5; backdrop-filter: blur(4px);
  display: none;
}

.demo-args { margin-bottom: 1.5rem; }
.arg-card {
  display: flex; align-items: flex-start; gap: 0.75rem;
  padding: 0.7rem 0; border-bottom: 1px solid var(--border);
  cursor: pointer; transition: background 0.1s;
}
.arg-card:last-child { border-bottom: none; }
.arg-card:hover { background: var(--bg-alt); border-radius: var(--radius); padding-left: 0.5rem; }
.arg-id { flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.72rem; font-weight: 700; }
.arg-id.pro { background: var(--pro-bg); color: var(--pro-color); }
.arg-id.con { background: var(--con-bg); color: var(--con-color); }
.arg-text { font-size: 0.86rem; line-height: 1.55; color: var(--text-2); }
.arg-text.expanded { color: var(--text); }
.arg-expand-hint { font-size: 0.75rem; color: var(--muted); margin-top: 0.2rem; }

.demo-controls { margin-bottom: 1.5rem; }
.demo-param-row { display: flex; align-items: center; gap: 1rem; margin-bottom: 0.6rem; }
.demo-param-row label { font-size: 0.85rem; color: var(--text-2); width: 200px; flex-shrink: 0; }
.demo-param-row input[type=range] { flex: 1; }
.demo-param-row span { font-family: var(--font-mono); font-size: 0.82rem; width: 32px; color: var(--accent); }
.demo-btn-row { display: flex; gap: 0.6rem; margin-top: 1rem; }

.demo-results { margin-top: 1.5rem; border-top: 1px solid var(--border); padding-top: 1.5rem; }
.demo-results-head { font-size: 0.9rem; font-weight: 600; margin-bottom: 1rem; }
.ranking-list { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.rank-item {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.55rem 0.9rem; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-alt);
  transition: all 0.3s;
}
.rank-num { font-size: 1rem; font-weight: 700; width: 22px; color: var(--muted); }
.rank-num.r1 { color: #ca8a04; }
.rank-num.r2 { color: #94a3b8; }
.rank-num.r3 { color: #cd7c2b; }
.rank-badge { flex-shrink: 0; padding: 0.15rem 0.45rem; border-radius: 4px; font-size: 0.72rem; font-weight: 600; }
.rank-badge.pro { background: var(--pro-bg); color: var(--pro-color); }
.rank-badge.con { background: var(--con-bg); color: var(--con-color); }
.rank-text { font-size: 0.83rem; color: var(--text-2); flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.rank-score { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); }
.rank-bar-wrap { flex: 0 0 80px; background: var(--border); border-radius: 3px; height: 5px; overflow: hidden; }
.rank-bar { height: 100%; border-radius: 3px; background: var(--accent); transition: width 0.5s ease; }
.iter-info { font-size: 0.8rem; color: var(--muted); margin-bottom: 0.75rem; }
#dynamics-canvas { width: 100%; border-radius: var(--radius); border: 1px solid var(--border); margin-top: 0.75rem; }

.demo-note { font-size: 0.85rem; color: var(--muted); text-align: center; }
.inline-link { color: var(--accent); text-decoration: underline; }

/* ── BibTeX ──────────────────────────────────────────────────────  */
.bibtex-wrap { position: relative; }
.bibtex {
  background: var(--inv-bg); color: #e2e8f0;
  border-radius: var(--radius-lg); padding: 1.75rem;
  font-family: var(--font-mono); font-size: 0.84rem;
  line-height: 1.7; overflow-x: auto; white-space: pre;
}
.copy-btn {
  position: absolute; top: 0.75rem; right: 0.75rem;
  background: rgba(255,255,255,0.12); color: #fff;
  border: 1px solid rgba(255,255,255,0.2); border-radius: 6px;
  padding: 0.3rem 0.75rem; font-size: 0.78rem; cursor: pointer;
  font-family: var(--font-sans); transition: all 0.15s;
}
.copy-btn:hover { background: rgba(255,255,255,0.22); }

/* ── Footer ──────────────────────────────────────────────────────  */
.site-footer {
  background: var(--inv-bg); color: var(--inv-muted);
  padding: 2.5rem 2rem;
}
.footer-inner { max-width: var(--max-w); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.footer-left { display: flex; align-items: center; gap: 0.6rem; }
.footer-logo { width: 20px; height: 20px; filter: invert(1); }
.footer-name { color: #fff; font-weight: 700; font-size: 0.95rem; }
.footer-right { text-align: right; font-size: 0.8rem; line-height: 1.7; }
.footer-right a { color: rgba(255,255,255,0.5); text-decoration: underline; }
.footer-sub { opacity: 0.6; }

/* ── Responsive ──────────────────────────────────────────────────  */
@media (max-width: 768px) {
  .fig-row, .method-grid, .fig-pair, .rank-compare { grid-template-columns: 1fr; }
  .kpi-strip { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-right { text-align: center; }
  .demo-param-row label { width: 150px; }
}
@media (max-width: 480px) {
  .kpi-strip { grid-template-columns: 1fr; }
  .hero { padding: 3rem 1rem 2.5rem; }
}

/* ── STRUCTDEBATE Explorer ──────────────────────────────────────── */
.explorer-motion {
  background: var(--inv-bg); color: var(--inv-text);
  border-radius: var(--radius-lg); padding: 1.25rem 1.75rem;
  margin-bottom: 1.5rem;
}
.explorer-motion-label { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; opacity: 0.5; margin-bottom: 0.35rem; }
.explorer-motion-text { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 600; line-height: 1.3; }

/* Tab nav */
.tab-nav { display: flex; gap: 0.25rem; border-bottom: 2px solid var(--border); margin-bottom: 1.75rem; }
.tab-btn {
  padding: 0.55rem 1.1rem; border: none; background: none; cursor: pointer;
  font-size: 0.85rem; font-weight: 500; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  transition: all 0.15s; font-family: var(--font-sans);
}
.tab-btn.active { color: var(--text); border-bottom-color: var(--text); }
.tab-btn:hover:not(.active) { color: var(--text-2); }
.tab-panel { }
.tab-panel.hidden { display: none; }
.tab-desc { font-size: 0.88rem; color: var(--text-2); margin-bottom: 1.25rem; }
.tab-note { font-size: 0.82rem; color: var(--muted); margin-top: 1rem; font-style: italic; }

/* Filter toolbar */
.args-toolbar, .matrix-toolbar, .dynamics-toolbar { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin-bottom: 1.25rem; align-items: center; }
.filter-group { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.filter-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); align-self: center; line-height: 1; }
.filter-btn {
  padding: 0.28rem 0.7rem; border-radius: 100px;
  border: 1.5px solid var(--border); background: transparent;
  font-size: 0.78rem; font-family: var(--font-sans); cursor: pointer;
  transition: all 0.12s; color: var(--text-2);
}
.filter-btn.active { background: var(--inv-bg); color: var(--inv-text); border-color: var(--inv-bg); }
.filter-btn:hover:not(.active) { border-color: var(--text-2); color: var(--text); }

/* Args list */
.args-list { display: flex; flex-direction: column; gap: 0; }
.arg-row {
  display: grid; grid-template-columns: 44px 60px 90px 1fr;
  align-items: start; gap: 0.6rem;
  padding: 0.7rem 0.5rem; border-bottom: 1px solid var(--border);
  cursor: pointer; border-radius: var(--radius); transition: background 0.1s;
}
.arg-row:hover { background: var(--bg-alt); }
.arg-rank { font-size: 0.78rem; font-weight: 700; color: var(--muted); padding-top: 0.1rem; text-align: right; }
.arg-stance {
  padding: 0.18rem 0.5rem; border-radius: 4px;
  font-size: 0.72rem; font-weight: 700; text-align: center;
  align-self: start; margin-top: 0.05rem;
}
.arg-stance.pro { background: var(--pro-bg); color: var(--pro-color); }
.arg-stance.con { background: var(--con-bg); color: var(--con-color); }
.arg-angle { font-size: 0.72rem; color: var(--muted); font-weight: 500; padding-top: 0.15rem; }
.arg-body { }
.arg-preview { font-size: 0.85rem; color: var(--text-2); line-height: 1.5; }
.arg-preview.full { color: var(--text); }
.arg-expand { font-size: 0.72rem; color: var(--muted); margin-top: 0.2rem; }

/* Matrix */
.matrix-legend { display: flex; align-items: center; gap: 0.5rem; font-size: 0.75rem; color: var(--muted); margin-left: auto; }
.legend-grad { width: 100px; height: 10px; border-radius: 3px; background: linear-gradient(to right, #fff, #0a0aaa); border: 1px solid var(--border); }
.matrix-help { font-size: 0.82rem; color: var(--muted); margin-bottom: 0.75rem; }
.matrix-wrap { position: relative; display: inline-block; }
#w-canvas { border: 1px solid var(--border); border-radius: var(--radius); cursor: crosshair; display: block; max-width: 100%; }
.w-tooltip {
  position: fixed; background: rgba(13,13,20,0.93); color: #fff;
  border-radius: 8px; padding: 0.65rem 0.9rem; font-size: 0.79rem;
  max-width: 300px; pointer-events: none; z-index: 300;
  line-height: 1.5; display: none; backdrop-filter: blur(6px);
}

/* Rankings tab — judge toggle + single table */
.rk-judge-bar { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 0.85rem; }
.judge-pill {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.22rem 0.6rem 0.22rem 0.4rem; border-radius: 100px;
  border: 1.5px solid var(--border); background: transparent;
  font-size: 0.72rem; font-weight: 600; font-family: var(--font-sans);
  cursor: pointer; color: var(--text-2); transition: all 0.12s; white-space: nowrap;
}
.judge-pill.active { background: var(--text); color: var(--bg); border-color: transparent; }
.judge-pill.active svg { filter: brightness(0) invert(1); }
.judge-pill:not(.active) svg { opacity: 0.85; }
.judge-pill:hover:not(.active) { border-color: var(--text-2); color: var(--text); }
.rk-table-wrap { overflow-x: auto; }
.rk-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.rk-table thead th {
  font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--muted); padding: 0.3rem 0.55rem 0.45rem;
  border-bottom: 2px solid var(--border); text-align: left; white-space: nowrap;
}
.rk-th-rank { width: 52px; }
.rk-th-score { width: 60px; text-align: right; }
.rk-row { cursor: pointer; transition: background 0.1s; }
.rk-row:hover td { background: var(--bg-alt); }
.rk-row td { padding: 0.32rem 0.55rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.rk-num { font-weight: 700; font-size: 0.78rem; color: var(--muted); white-space: nowrap; }
.rk-num.r1 { color: #b45309; }
.rk-num.r2 { color: #71717a; }
.rk-num.r3 { color: #7c3aed; }
.rk-rank-num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); }
.rk-na { color: var(--muted); opacity: 0.35; font-size: 0.75rem; }
.rk-badge { font-size: 0.65rem; font-weight: 700; padding: 0.1rem 0.35rem; border-radius: 3px; white-space: nowrap; }
.rk-badge.pro { background: var(--pro-bg); color: var(--pro-color); }
.rk-badge.con { background: var(--con-bg); color: var(--con-color); }
.rk-angle { font-size: 0.65rem; color: var(--muted); font-weight: 500; }
.rk-text-cell { max-width: 420px; color: var(--text-2); font-size: 0.78rem; }
.rk-score-cell { font-family: var(--font-mono); font-size: 0.74rem; color: var(--muted); text-align: right; white-space: nowrap; }
.rk-angle-legend { font-size: 0.7rem; color: var(--muted); margin-top: 0.65rem; }

/* Agreement */
.agreement-wrap { position: relative; display: inline-block; }
#pearson-canvas { border: 1px solid var(--border); border-radius: var(--radius); cursor: crosshair; }
.pearson-tooltip { position: fixed; background: rgba(13,13,20,0.9); color: #fff; border-radius: 6px; padding: 0.5rem 0.75rem; font-size: 0.78rem; display: none; pointer-events: none; z-index: 300; }

/* Dynamics */
#dynamics-canvas { border: 1px solid var(--border); border-radius: var(--radius); display: block; max-width: 100%; }
.dynamics-legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; margin-top: 0.75rem; }
.dyn-legend-item { display: flex; align-items: center; gap: 0.35rem; font-size: 0.78rem; color: var(--text-2); }
.dyn-legend-swatch { width: 20px; height: 3px; border-radius: 2px; }
.cell-tooltip { position: fixed; background: rgba(13,13,20,0.93); color: #fff; border-radius: 8px; padding: 0.65rem 0.9rem; font-size: 0.79rem; max-width: 320px; pointer-events: none; z-index: 400; line-height: 1.5; display: none; }

/* Explorer debate selector */
.explorer-controls {
  display: flex; flex-wrap: wrap; gap: 1rem 2.5rem;
  margin-bottom: 1.25rem; align-items: center;
}
.motion-select-group { flex: 1; min-width: 240px; }
#motion-select {
  font-family: var(--font-sans); font-size: 0.82rem; color: var(--text);
  background: var(--bg); border: 1.5px solid var(--border); border-radius: 6px;
  padding: 0.38rem 0.65rem; cursor: pointer; max-width: 560px; width: 100%;
}
#motion-select:focus { outline: none; border-color: var(--text-2); }
.debate-loading {
  display: none; font-size: 0.82rem; color: var(--muted);
  padding: 0.4rem 0; margin-bottom: 0.5rem;
}

/* Graph tab */
.graph-toolbar { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin-bottom: 0.75rem; align-items: center; }
.tau-group { align-items: center; }
.tau-slider { width: 120px; accent-color: var(--text); cursor: pointer; vertical-align: middle; }
.tau-val { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-2); min-width: 2.6em; }
.graph-stats-bar { margin-bottom: 0.55rem; }
.graph-stats { font-family: var(--font-mono); font-size: 0.77rem; color: var(--muted); }
.graph-canvas-wrap { width: 100%; position: relative; }
#graph-canvas { display: block; width: 100%; border: 1px solid var(--border); border-radius: var(--radius-lg); cursor: crosshair; }
.graph-legend { display: flex; gap: 1.25rem; margin-top: 0.75rem; flex-wrap: wrap; align-items: center; }
.leg-item { display: flex; align-items: center; gap: 0.35rem; font-size: 0.78rem; color: var(--text-2); }
.leg-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; flex-shrink: 0; }

.rk-angle { font-size: 0.65rem; color: var(--muted); font-weight: 500; flex-shrink: 0; }
.rk-raw { font-family: var(--font-mono); font-size: 0.64rem; color: var(--muted); flex-shrink: 0; opacity: 0.7; }

/* Model judge badges */
.judge-badge {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.28rem 0.65rem; border-radius: 100px;
  border: 1.5px solid var(--border); background: transparent;
  font-size: 0.78rem; font-family: var(--font-sans); cursor: pointer;
  transition: all 0.12s; color: var(--text-2);
}
.judge-badge.active { color: #fff; border-color: transparent; }
.judge-badge.active svg { filter: brightness(0) invert(1); }
.judge-badge:not(.active) svg { opacity: 0.85; }
.judge-badge:hover:not(.active) { border-color: var(--text-2); color: var(--text); }
.judge-pip {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}

/* Graph insights panel */
.graph-insights {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 0.75rem;
  margin-top: 1rem;
}
.insight-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0.75rem 1rem; cursor: default;
}
.insight-label {
  font-size: 0.66rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--muted); margin-bottom: 0.5rem;
  display: flex; align-items: center; gap: 0.35rem;
}
.insight-items { display: flex; flex-direction: column; gap: 0.35rem; }
.insight-row {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  align-items: center; gap: 0.4rem;
  font-size: 0.76rem; color: var(--text-2);
  cursor: pointer; border-radius: 4px; padding: 0.15rem 0.25rem;
  transition: background 0.1s;
}
.insight-row:hover { background: var(--bg-alt); }
.insight-text { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; min-width: 0; }
.insight-meta {
  display: flex; align-items: center; gap: 0.3rem; flex-shrink: 0;
  font-family: var(--font-mono); font-size: 0.65rem; color: var(--muted);
}
.insight-delta-pos { color: #16a34a; font-weight: 700; }
.insight-delta-neg { color: #dc2626; font-weight: 700; }

/* Arg detail panel */
.arg-detail-panel {
  margin-top: 1.25rem; background: var(--bg-card);
  border: 1.5px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem; position: relative;
}
.arg-detail-panel.hidden { display: none; }
.arg-detail-header {
  display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.75rem;
}
.arg-detail-title { font-weight: 600; font-size: 0.9rem; flex: 1; }
.arg-detail-close {
  background: none; border: none; cursor: pointer; font-size: 1rem;
  color: var(--muted); padding: 0.2rem 0.5rem; border-radius: 4px;
  transition: color 0.1s;
}
.arg-detail-close:hover { color: var(--text); }
.arg-detail-text {
  font-size: 0.88rem; color: var(--text-2); line-height: 1.6;
  margin-bottom: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border);
}
.arg-detail-ranks {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem;
}
.arg-rank-chip {
  display: flex; align-items: center; gap: 0.35rem;
  padding: 0.3rem 0.7rem; border-radius: 100px; border: 1.5px solid var(--border);
  font-size: 0.76rem;
}
.arg-rank-chip .chip-model { font-weight: 600; }
.arg-rank-chip .chip-grasp { color: var(--accent); font-family: var(--font-mono); }
.arg-rank-chip .chip-raw { color: var(--muted); font-family: var(--font-mono); font-size: 0.7rem; }
.arg-detail-connections { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.conn-section { }
.conn-head {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--muted); margin-bottom: 0.4rem;
}
.conn-item {
  display: flex; flex-direction: column; gap: 0.22rem;
  font-size: 0.77rem; color: var(--text-2); padding: 0.35rem 0;
  border-bottom: 1px solid var(--border); cursor: pointer;
}
.conn-item:hover { color: var(--text); }
.conn-item:last-child { border-bottom: none; }
.conn-item-head { display: flex; align-items: center; gap: 0.35rem; }
.conn-item-text { font-size: 0.76rem; color: var(--text-2); line-height: 1.45; }
.conn-w { font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); margin-left: auto; flex-shrink: 0; }

/* Interactive figure wrappers */
.ifig-wrap { position: relative; display: block; }
.ifig-canvas {
  display: block; width: 100%; border: 1px solid var(--border);
  border-radius: var(--radius); background: var(--bg-alt);
}

/* Toy GRASP diagram */
.toy-wrap { display: flex; flex-direction: column; gap: 0.65rem; }
.toy-action-bar {
  display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap;
}
.toy-btn {
  padding: 0.28rem 0.7rem; border-radius: 100px; font-size: 0.77rem;
  font-family: var(--font-sans); cursor: pointer; font-weight: 500;
  border: 1.5px solid var(--border); background: var(--bg-card);
  color: var(--text-2); transition: all 0.12s;
}
.toy-btn:hover { background: var(--inv-bg); color: var(--inv-text); border-color: var(--inv-bg); }
.toy-btn-danger { border-color: rgba(220,38,38,.4); color: #dc2626; }
.toy-btn-danger:hover { background: #dc2626; color: #fff; border-color: #dc2626; }
.toy-btn-ghost { opacity: 0.6; }
.toy-btn-ghost:hover { opacity: 1; }
.toy-canvas {
  display: block; width: 100%; border: 1px solid var(--border);
  border-radius: var(--radius); background: var(--bg-alt);
  min-height: 220px;
}
.toy-controls { display: flex; flex-direction: column; gap: 0.4rem; }
.toy-slider-row {
  display: grid; grid-template-columns: 60px 1fr 36px;
  align-items: center; gap: 0.5rem; font-size: 0.78rem; color: var(--text-2);
}
.toy-slider-row label { display: flex; align-items: center; gap: 0.35rem; }
.toy-edge-label {
  font-size: 0.62rem; padding: 0.08rem 0.35rem; border-radius: 3px;
  font-weight: 600; letter-spacing: 0.02em;
}
.toy-edge-label.attack { background: rgba(220,38,38,.12); color: #dc2626; }
.toy-val { font-family: var(--font-mono); font-size: 0.76rem; color: var(--accent); text-align: right; }

/* Mini graphs (Figure 3) */
.mini-graphs-wrap {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-alt); padding: 0.5rem;
}
.mini-graphs-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem;
}
.mini-graph-item { position: relative; }
.mini-graph-canvas {
  display: block; width: 100%; border-radius: 6px;
  border: 1px solid var(--border); background: var(--bg-alt);
}
.mini-graph-label {
  position: absolute; bottom: 4px; left: 6px;
  font-size: 0.65rem; color: var(--muted);
  font-family: var(--font-mono); pointer-events: none;
}

/* Rankings tab */
.rk-raw-ex {
  font-family: var(--font-mono); font-size: 0.75em;
  color: var(--muted); opacity: 0.8;
}
/* Responsive for explorer */
@media (max-width: 900px) { .graph-insights { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) {
  .tab-btn { padding: 0.45rem 0.7rem; font-size: 0.78rem; }
  #motion-select { font-size: 0.75rem; }
  .graph-insights { grid-template-columns: 1fr; }
}