/* ===================================================================
   X-Lens — original theme
   Palette: violet → fuchsia → amber "nebula" on deep plum-black
   =================================================================== */
:root{
  --bg:#0a0612;
  --bg-2:#120a1f;
  --panel:rgba(28,18,46,.55);
  --panel-solid:#160e26;
  --line:rgba(168,130,255,.16);
  --text:#ece8f6;
  --muted:#a99fc4;
  --faint:#6d6390;

  --v1:#8b5cf6;   /* violet */
  --v2:#d946ef;   /* fuchsia */
  --v3:#f59e0b;   /* amber */
  --accent:#ec4899;

  --grad: linear-gradient(100deg,var(--v1),var(--v2) 45%,var(--accent) 70%,var(--v3));
  --grad-soft: linear-gradient(120deg,rgba(139,92,246,.18),rgba(236,72,153,.14),rgba(245,158,11,.12));

  --r:18px;
  --container:1180px;
  --shadow:0 30px 80px -30px rgba(0,0,0,.8);
  --ease:cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Sora',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.mono{font-family:'JetBrains Mono',monospace}
em{color:var(--muted);font-style:italic}

.container{max-width:var(--container);margin:0 auto;padding:0 28px;position:relative;z-index:2}
.container.narrow{max-width:840px}

/* ---------- animated backgrounds ---------- */
.bg-aurora{
  display:none;
}
@keyframes drift{
  0%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(2%,-2%,0) scale(1.08)}
  100%{transform:translate3d(-2%,2%,0) scale(1.04)}
}
.bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(168,130,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(168,130,255,.06) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  opacity:.24;
}
.bg-noise{
  display:none;
}
.cursor-glow{
  display:none;
}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:all .4s var(--ease)}
.nav.scrolled{background:rgba(10,6,18,.94);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--container);margin:0 auto;padding:16px 28px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:1.05rem;letter-spacing:.2px}
.brand-mark{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-size:1.2rem}
.brand-name{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:200% auto;animation:shine 6s linear infinite}
.nav-links{display:flex;gap:28px;margin-left:auto;font-size:.92rem;font-weight:500}
.nav-links a{color:var(--muted);transition:color .25s;position:relative}
.nav-links a::after{content:'';position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--grad);transition:width .3s var(--ease)}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--text)}
.nav-cta{padding:9px 18px;border-radius:999px;background:var(--grad);color:#fff;font-weight:600;font-size:.88rem;
  box-shadow:0 8px 24px -8px rgba(217,70,239,.7);transition:transform .25s var(--ease)}
.nav-cta:hover{transform:translateY(-2px)}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-burger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* ---------- hero ---------- */
.hero{padding:160px 0 90px;text-align:center;position:relative}
.hero-glow{position:absolute;top:0;left:50%;transform:translateX(-50%);width:900px;height:560px;
  background:radial-gradient(ellipse at top,rgba(139,92,246,.25),transparent 70%);z-index:0;pointer-events:none}
.badge{display:inline-block;padding:7px 16px;border-radius:999px;border:1px solid var(--line);
  background:var(--panel);font-size:.8rem;font-weight:600;letter-spacing:.6px;
  color:var(--v2);margin-bottom:26px;text-transform:uppercase}
.hero-title{font-size:clamp(2.1rem,5.4vw,4rem);font-weight:800;line-height:1.08;letter-spacing:-1.5px;margin-bottom:30px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:200% auto;animation:shine 6s linear infinite}
@keyframes shine{to{background-position:200% center}}

.authors{list-style:none;display:flex;flex-wrap:wrap;gap:6px 22px;justify-content:center;font-size:1.02rem;margin-bottom:8px}
.authors li{white-space:nowrap}
.authors .author-break{flex-basis:100%;height:0}
.authors a{color:var(--text);font-weight:500;transition:color .2s}
.authors a:hover{color:var(--v2)}
.authors sup{color:var(--accent);font-size:.7em}
.affil{color:var(--muted);font-size:.9rem;margin-bottom:34px}
.affil sup{color:var(--accent)}

.hero-links{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:40px}
.pill{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel);
  font-weight:600;font-size:.92rem;color:var(--text);transition:all .3s var(--ease)}
.pill:hover{transform:translateY(-3px);border-color:rgba(217,70,239,.5);box-shadow:0 14px 30px -14px rgba(217,70,239,.6)}
.pill.primary{background:var(--grad);border-color:transparent;color:#fff}
.pill .ic{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.pill.primary .ic{fill:currentColor;stroke:none}
.pill .mono{font-size:.82rem;opacity:.85}

.tldr{max-width:760px;margin:0 auto;font-size:1.08rem;color:var(--muted);position:relative;padding-top:6px}
.tldr-tag{display:inline-block;background:var(--grad);color:#fff;font-weight:700;font-size:.7rem;letter-spacing:1px;
  padding:3px 9px;border-radius:6px;margin-right:10px;vertical-align:middle}
.tldr em{color:var(--v2);font-style:italic}

.hero-media{margin-top:64px}
.media-frame{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);aspect-ratio:16/9;background:var(--bg-2)}
.media-frame.small{aspect-ratio:4/3}
.media-tag{position:absolute;left:14px;bottom:14px;z-index:3;font-family:'JetBrains Mono',monospace;
  font-size:.74rem;color:#fff;background:rgba(10,6,18,.72);padding:5px 10px;border-radius:8px}
.play{position:absolute;inset:0;margin:auto;width:74px;height:74px;border-radius:50%;border:0;cursor:pointer;z-index:3;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  display:grid;place-items:center;transition:all .3s var(--ease)}
.play svg{width:30px;height:30px;fill:#fff;margin-left:3px}
.play:hover{transform:scale(1.1);background:var(--grad);border-color:transparent}
.media-frame figcaption,.hero-media figcaption{margin-top:14px;color:var(--muted);font-size:.9rem;text-align:center}

.hero-video-frame{aspect-ratio:4/3;background:#050309}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;z-index:1;background:#050309}
.hero-video-toggle{opacity:0;background:rgba(10,6,18,.48)}
.hero-video-frame:hover .hero-video-toggle,.hero-video-toggle:focus-visible,.hero-video-frame.paused .hero-video-toggle{opacity:1}
.hero-video-toggle .icon-play{display:none}
.hero-video-toggle .icon-pause{display:block;margin-left:0}
.hero-video-frame.paused .hero-video-toggle .icon-play{display:block}
.hero-video-frame.paused .hero-video-toggle .icon-pause{display:none}
.video-switcher{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin-top:16px}
.video-switcher button{min-width:0;padding:0;border-radius:8px;border:1px solid var(--line);
  background:rgba(28,18,46,.56);color:var(--muted);font:600 .78rem 'Sora',system-ui,sans-serif;
  cursor:pointer;overflow:hidden;transition:transform .25s var(--ease),border-color .25s,color .25s,background .25s}
.video-switcher button:hover{transform:translateY(-2px);border-color:rgba(217,70,239,.55);color:var(--text)}
.video-switcher button.active{border-color:var(--v2);color:#fff;box-shadow:0 12px 26px -16px rgba(217,70,239,.9)}
.video-switcher img{width:100%;aspect-ratio:431/269;object-fit:cover;display:block;background:#050309}
.video-switcher span{display:block;padding:7px 6px 8px;line-height:1.15;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- sections ---------- */
.section{padding:48px 0;position:relative}
.kicker{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;
  color:var(--v2);margin-bottom:16px;padding-left:2px}
.kicker::before{content:'';display:inline-block;width:28px;height:2px;background:var(--grad);
  vertical-align:middle;margin-right:12px;border-radius:2px}
.section-title{font-size:clamp(1.8rem,3.6vw,2.7rem);font-weight:700;letter-spacing:-1px;line-height:1.15;margin-bottom:26px}
.lead{font-size:1.16rem;color:var(--muted);margin-bottom:18px;max-width:720px}
.section p{color:var(--muted)}
.section p strong{color:var(--text)}

/* abstract teaser chart */
.teaser{margin-top:48px}
.chart-card{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:22px;box-shadow:var(--shadow)}
.chart-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;font-size:.85rem;color:var(--muted);margin-bottom:16px}
.chart-legend{display:flex;align-items:center;gap:6px}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin:0 4px 0 10px}
.dot.ours{background:var(--v2)}.dot.base{background:var(--faint)}
.chart{width:100%;height:auto}
.chart .axis{stroke:var(--line);stroke-width:2}
.chart .pt.base{fill:var(--faint);opacity:.7}
.chart .pt.ours{fill:url(#g);fill:var(--v2);filter:drop-shadow(0 0 10px rgba(217,70,239,.8))}
.chart .lbl{fill:var(--text);font-size:14px;font-family:'Sora',sans-serif;font-weight:600}
figcaption{color:var(--muted);font-size:.9rem;margin-top:12px;text-align:center}

/* ---------- abilities ---------- */
.ability{max-width:760px;margin-top:42px;padding-bottom:30px;border-bottom:1px solid var(--line)}
.ability:last-child{border-bottom:0;padding-bottom:0}
.ability.reverse .ability-text{order:0}
.ability-num{font-family:'JetBrains Mono',monospace;font-size:.95rem;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;font-weight:600;letter-spacing:2px}
.ability-text h3{font-size:1.7rem;font-weight:700;margin:8px 0 14px;letter-spacing:-.5px}
.ability-text p{font-size:1.04rem}

/* ---------- comparison grid ---------- */
.compare-title{margin:36px 0 14px;font-size:1.15rem;font-weight:700;letter-spacing:0;color:var(--text)}
.compare-title::before{content:'';display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--v2);margin-right:10px;vertical-align:middle}
.compare-grid{display:grid;grid-template-columns:repeat(4,minmax(180px,1fr));gap:10px;margin:0 0 42px;overflow-x:auto}
.compare-head{position:sticky;top:0;z-index:2;padding:9px 12px;border:1px solid var(--line);border-radius:8px;
  background:rgba(22,14,38,.96);color:var(--muted);font-size:.78rem;font-weight:700;letter-spacing:1px;text-align:center;text-transform:uppercase}
.compare-head.ours{color:#fff;background:var(--grad);border-color:transparent}
.compare-grid img{width:100%;aspect-ratio:798/504;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:#050309}
.compare-grid .ours-img{border-color:rgba(217,70,239,.72);box-shadow:0 0 0 1px rgba(217,70,239,.16)}

/* ---------- point cloud viewer ---------- */
.pointcloud-showcase{margin:46px 0 36px}
.pointcloud-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.pointcloud-head .compare-title{margin:0}
.pointcloud-name{font-family:'JetBrains Mono',monospace;font-size:.78rem;color:var(--v2);
  border:1px solid var(--line);border-radius:8px;background:rgba(28,18,46,.56);padding:6px 10px}
.pointcloud-viewer{position:relative;min-height:520px;aspect-ratio:16/9;border-radius:var(--r);overflow:hidden;
  border:1px solid var(--line);background:#050309;box-shadow:var(--shadow)}
.pointcloud-viewer canvas{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:grab}
.pointcloud-viewer canvas:active{cursor:grabbing}
.pointcloud-arrow{position:absolute;top:50%;z-index:4;width:52px;height:52px;border:1px solid rgba(255,255,255,.2);
  border-radius:50%;background:rgba(28,18,46,.78);color:#fff;display:grid;place-items:center;cursor:pointer;
  transform:translateY(-50%);transition:transform .25s var(--ease),background .25s,border-color .25s}
.pointcloud-arrow:hover{background:var(--grad);border-color:transparent;transform:translateY(-50%) scale(1.06)}
.pointcloud-arrow.prev{left:18px}
.pointcloud-arrow.next{right:18px}
.pointcloud-arrow svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.pointcloud-status{position:absolute;left:16px;bottom:14px;z-index:4;font-family:'JetBrains Mono',monospace;font-size:.76rem;
  color:#fff;background:rgba(10,6,18,.72);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:6px 10px}
.pointcloud-status.hidden{display:none}

/* ---------- VLA demos ---------- */
.vla-showcase{margin:42px 0 36px}
.vla-showcase .compare-title{margin:0 0 10px}
.vla-copy{margin-bottom:18px;color:var(--muted);font-size:1rem}
.vla-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.vla-video{position:relative}
.vla-grid video{width:100%;aspect-ratio:16/9;object-fit:contain;display:block;border-radius:var(--r);
  border:1px solid var(--line);background:#050309;box-shadow:var(--shadow)}
.vla-video span{position:absolute;top:12px;right:12px;z-index:2;font-family:'JetBrains Mono',monospace;
  font-size:.72rem;color:#fff;background:rgba(10,6,18,.72);border:1px solid rgba(255,255,255,.1);
  border-radius:8px;padding:5px 9px}

/* ---------- table ---------- */
.table-wrap{margin-top:30px;overflow-x:auto}
.bench{width:100%;border-collapse:collapse;font-size:.96rem;min-width:560px}
.bench th,.bench td{padding:15px 18px;text-align:center;border-bottom:1px solid var(--line)}
.bench th:first-child,.bench td:first-child{text-align:left}
.bench thead th{font-size:.78rem;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);font-weight:600}
.bench tbody td{color:var(--muted)}
.bench tbody tr{transition:background .25s}
.bench tbody tr:hover{background:rgba(139,92,246,.06)}
.bench .yes{color:#34d399;font-weight:700}.bench .no{color:#fb7185}
.bench tr.ours{background:var(--grad-soft)}
.bench tr.ours td{color:var(--text);font-weight:700;font-size:1.02rem}
.tag-ours{font-size:.62rem;background:var(--grad);color:#fff;padding:2px 7px;border-radius:6px;margin-left:8px;font-weight:700;letter-spacing:.5px}
.table-note{margin-top:14px;font-size:.88rem;color:var(--faint)}

/* ---------- bibtex ---------- */
.bibtex{position:relative;border:1px solid var(--line);border-radius:var(--r);background:var(--panel-solid);
  margin-top:24px;overflow:hidden;box-shadow:var(--shadow)}
.citation-container{max-width:1100px}
.bibtex pre{font-family:'JetBrains Mono',monospace;font-size:.86rem;color:#cdbff0;padding:26px;overflow-x:auto;line-height:1.7}
.copy-btn{position:absolute;top:14px;right:14px;z-index:2;padding:7px 16px;border-radius:8px;border:1px solid var(--line);
  background:rgba(28,18,46,.8);color:var(--text);font-weight:600;font-size:.82rem;cursor:pointer;transition:all .25s}
.copy-btn:hover{background:var(--grad);border-color:transparent;color:#fff}
.copy-btn.copied{background:#34d399;color:#04130c;border-color:transparent}
.ack{margin-top:40px}
.ack h3{font-size:1.2rem;margin-bottom:10px}
.ack p{color:var(--muted)}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);padding:34px 0;margin-top:40px;position:relative;z-index:2}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
.footer .brand{font-size:1rem}
.footer-copy{color:var(--faint);font-size:.86rem}
.to-top{color:var(--muted);font-size:.88rem;font-weight:600;transition:color .25s}
.to-top:hover{color:var(--v2)}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:860px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex}
  .nav.open .nav-links{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:18px;
    padding:22px 28px;background:rgba(10,6,18,.98);border-bottom:1px solid var(--line)}
  .video-switcher{grid-template-columns:repeat(3,minmax(0,1fr))}
  .pointcloud-viewer{min-height:360px}
  .pointcloud-arrow{width:46px;height:46px}
  .vla-grid{grid-template-columns:1fr}
  .hero{padding:130px 0 60px}
  .section{padding:35px 0}
  .br-d{display:none}
  .authors .author-break{display:none}
}
@media(max-width:480px){
  .container{padding:0 18px}
  .video-switcher{gap:8px}
  .video-switcher{grid-template-columns:repeat(2,minmax(0,1fr))}
  .video-switcher button{font-size:.76rem}
  .pointcloud-viewer{min-height:300px}
  .pointcloud-arrow.prev{left:10px}
  .pointcloud-arrow.next{right:10px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ===== section hierarchy: big section name + small subtitle ===== */
.section-sub{font-size:1.05rem;color:var(--muted);margin:-14px 0 34px;letter-spacing:.2px;max-width:760px}

/* ===== abstract: DA3-style clean reading block ===== */
.abstract-body p{font-size:1.04rem;line-height:1.9;text-align:justify;max-width:820px;margin-bottom:18px}
.abstract-body p strong{color:var(--text)}

/* ===== vision-action ===== */
.coming-soon{margin-top:24px;color:var(--muted);font-size:.98rem}
.coming-soon .mono{color:var(--v2)}

/* ===== big section names carry the brand gradient (the purple look) ===== */
.section-title{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  width:fit-content}
.section-title::after{content:'';display:block;width:56px;height:3px;border-radius:2px;background:var(--grad);
  margin-top:10px;opacity:.85}

/* ===== dataset section ===== */
.ds-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:6px 0 30px}
.ds-stat{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:18px 20px}
.ds-num{display:block;font-family:'JetBrains Mono',monospace;font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:700;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.ds-label{display:block;margin-top:4px;font-size:.88rem;color:var(--muted)}
.ds-figure img{width:100%;height:auto;border-radius:var(--r);border:1px solid var(--line)}
.ds-figure figcaption{margin-top:10px;font-size:.88rem;color:var(--muted)}
.ds-copy{max-width:820px;margin:26px 0 22px}
@media(max-width:768px){.ds-stats{grid-template-columns:repeat(2,1fr)}}

/* ===== metric measure tool ===== */
.pc-measure-ui{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.pc-measure-btn{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--muted);font-size:.82rem;font-weight:600;
  cursor:pointer;transition:all .25s var(--ease)}
.pc-measure-btn svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.pc-measure-btn:hover{color:var(--text);border-color:rgba(255,255,255,.3)}
.pc-measure-btn.active{background:var(--grad);border-color:transparent;color:#fff}
.pc-measure-chip{font-family:'JetBrains Mono',monospace;font-size:.85rem;color:var(--v2);
  border:1px solid var(--line);border-radius:8px;padding:5px 12px;background:var(--panel)}

/* ===== box-select crop ===== */
.pc-crop-rect{position:absolute;border:1.5px dashed var(--v2);background:rgba(217,70,239,.12);
  z-index:5;pointer-events:none;border-radius:4px}

/* ===== interactive demo: full-width viewer + film-strip inputs below ===== */
.pc-layout{display:flex;flex-direction:column;gap:14px;align-items:stretch}
.pc-context{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:14px 16px;max-height:none}
.pc-ctx-head{display:flex;align-items:baseline;gap:12px;margin-bottom:10px}
.pc-ctx-title{font-weight:700;font-size:.92rem}
.pc-ctx-tag{font-family:'JetBrains Mono',monospace;font-size:.72rem;color:var(--v2)}
.pc-ctx-grid{display:flex;gap:10px}
.pc-ctx-grid img{flex:1 1 0;min-width:0;width:100%;height:auto;align-self:flex-start;
  border-radius:8px;border:1px solid var(--line);display:block}
@media(max-width:768px){.pc-ctx-grid{flex-wrap:wrap}.pc-ctx-grid img{flex:1 1 44%}}

/* ===== company logo in nav ===== */
.nav-logo{height:24px;width:auto;display:block;margin-left:auto;margin-right:14px;opacity:.92;transition:opacity .25s}
.nav-logo:hover{opacity:1}
@media(max-width:900px){.nav-logo{display:none}}

/* affil footnotes on their own line */
.affil-notes{margin-top:-6px}

/* 5 scene thumbs centered under the hero video */
.video-switcher{display:flex;flex-wrap:wrap;justify-content:center}
.video-switcher button{flex:0 1 172px}

/* all section headers centered */
.section-title{margin-left:auto;margin-right:auto;text-align:center}
.section-title::after{margin-left:auto;margin-right:auto}
.section-sub{text-align:center;margin-left:auto;margin-right:auto}

/* dataset copy + HF button centered */
.ds-copy{text-align:center;margin-left:auto;margin-right:auto}
#dataset .pill{display:table;margin-left:auto;margin-right:auto}

/* ===== quantitative radar maps ===== */
.radar-section{isolation:isolate;overflow:hidden}
.radar-section::before{content:'';position:absolute;left:50%;top:48%;width:980px;height:680px;z-index:0;
  transform:translate(-50%,-50%);pointer-events:none;
  background:radial-gradient(ellipse,rgba(139,92,246,.13),rgba(217,70,239,.045) 42%,transparent 72%)}
.radar-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;align-items:stretch;padding:12px;
  border:1px solid rgba(168,130,255,.22);border-radius:24px;overflow:hidden;
  background:linear-gradient(145deg,rgba(30,19,50,.66),rgba(14,9,25,.5));
  box-shadow:0 28px 80px -42px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.035);
  backdrop-filter:blur(10px)}
.radar-card{position:relative;min-width:0;padding:18px 16px 15px;background:transparent}
.radar-card+.radar-card{border-left:1px solid rgba(168,130,255,.14)}
.radar-card-head{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 4px 2px}
.radar-card-head h3{font-size:1.1rem;line-height:1.25;letter-spacing:-.25px}
.radar-eyebrow{display:block;margin-bottom:4px;font:500 .62rem/1.2 'JetBrains Mono',monospace;
  color:var(--v2);letter-spacing:1.3px;text-transform:uppercase}
.radar-view-count{flex:none;padding:5px 9px;border:1px solid var(--line);border-radius:999px;background:rgba(10,6,18,.42);
  font:500 .64rem/1 'JetBrains Mono',monospace;color:var(--faint)}
.radar-view-count strong{color:var(--text);font-weight:600}
.radar-chart{position:relative;z-index:1;margin:0 -2px}
.radar-chart svg{display:block;width:100%;height:auto;overflow:visible}
.radar-ring{fill:none;stroke:rgba(168,130,255,.13);stroke-width:.8;stroke-dasharray:2.5 3.5}
.radar-ring-outer{stroke:rgba(168,130,255,.28);stroke-width:1.15;stroke-dasharray:none}
.radar-spoke{stroke:rgba(168,130,255,.15);stroke-width:.8}
.radar-axis-label{fill:#aaa0c4;font:600 8.2px 'Sora',system-ui,sans-serif;letter-spacing:-.12px}
.radar-area{opacity:.055;transition:opacity .24s var(--ease);pointer-events:none}
.radar-outline{fill:none;stroke-width:1.25;stroke-linejoin:round;opacity:.62;pointer-events:none;
  transition:opacity .24s var(--ease),stroke-width .24s var(--ease)}
.radar-point{stroke:#150d24;stroke-width:1;opacity:.78;pointer-events:none;transition:opacity .24s var(--ease)}
.radar-hit{fill:none;stroke:transparent;stroke-width:12;stroke-linejoin:round;pointer-events:stroke;cursor:pointer}
.radar-series-ours .radar-area{opacity:.17}
.radar-series-ours .radar-outline{stroke-width:2.25;opacity:1}
.radar-series-ours .radar-point{opacity:1;stroke:#fff;stroke-width:.8}
.radar-series.is-muted{opacity:.08}
.radar-series.is-active .radar-area{opacity:.22}
.radar-series.is-active .radar-outline{opacity:1;stroke-width:2.5}
.radar-series.is-active .radar-point{opacity:1}
.radar-series{transition:opacity .24s var(--ease)}
.radar-legend{position:relative;z-index:2;display:flex;flex-wrap:wrap;justify-content:center;gap:6px 8px;min-height:50px;padding-top:2px}
.radar-legend-item{display:inline-flex;align-items:center;gap:5px;padding:4px 6px;border:0;border-radius:6px;background:transparent;
  color:var(--muted);font:500 .61rem/1.1 'JetBrains Mono',monospace;cursor:pointer;transition:color .2s,background .2s,opacity .2s}
.radar-legend-item span{width:13px;height:2px;border-radius:2px;background:var(--series-color);box-shadow:0 0 7px color-mix(in srgb,var(--series-color) 65%,transparent)}
.radar-legend-item:hover,.radar-legend-item:focus-visible,.radar-legend-item.is-active{color:var(--text);background:rgba(255,255,255,.055);outline:none}
.radar-legend-item.ours{color:#f7c4de;font-weight:700}
.radar-legend-item.ours span{height:3px;background:linear-gradient(90deg,var(--v2),var(--v3))}
.radar-legend-item.is-muted{opacity:.25}
.radar-note{max-width:800px;margin:26px auto 0;text-align:center;font-size:.78rem;line-height:1.7}
.radar-note span{display:inline-block;margin-right:8px;padding:3px 8px;border:1px solid var(--line);border-radius:999px;
  color:var(--v2);font:600 .65rem/1.2 'JetBrains Mono',monospace;text-transform:uppercase;letter-spacing:.7px}
@media(max-width:1040px){
  .radar-grid{grid-template-columns:1fr;padding:10px 18px}
  .radar-card+.radar-card{border-left:0;border-top:1px solid rgba(168,130,255,.14)}
  .radar-card{max-width:540px;width:100%;justify-self:center;padding:20px 24px}
}
@media(max-width:700px){
  .radar-grid{padding:8px 12px}
  .radar-card{max-width:430px;padding:20px 10px 17px}
  .radar-chart{max-width:390px;margin:0 auto}
}