:root{
  --bg:#06111f;--bg2:#0b2340;--panel:#0e2948;--panel2:#102f52;
  --text:#f7f9fc;--muted:#afc0d2;--blue:#52c9d8;--gold:#ffc84f;
  --border:rgba(255,255,255,.12);--shadow:0 22px 70px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--text);min-height:100vh;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:
    radial-gradient(circle at 14% 10%,rgba(82,201,216,.13),transparent 26%),
    radial-gradient(circle at 82% 16%,rgba(255,200,79,.08),transparent 24%),
    linear-gradient(150deg,var(--bg),var(--bg2));
}
a{color:inherit}
.shell{width:min(1180px,calc(100% - 36px));margin:auto}
.site-header{padding:18px 0;border-bottom:1px solid rgba(255,255,255,.07);background:rgba(4,14,27,.58);backdrop-filter:blur(14px)}
.header-row{display:flex;justify-content:space-between;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{width:58px;height:58px;object-fit:contain}
.brand span{display:flex;flex-direction:column;line-height:1.05}
.brand strong{font-size:1.35rem;letter-spacing:.08em}
.brand small{margin-top:5px;color:var(--muted);font-size:.75rem;letter-spacing:.04em}
.main-nav{display:flex;gap:3px;flex-wrap:wrap;justify-content:flex-end}
.main-nav a{padding:8px 10px;text-decoration:none;color:var(--muted);font-size:.85rem;border-radius:999px}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.research-hero{display:grid;grid-template-columns:300px 1fr;align-items:center;gap:54px;padding:72px 0 58px}
.hero-logo img{width:100%;max-width:290px;display:block;filter:drop-shadow(0 22px 42px rgba(0,0,0,.3))}
.eyebrow{display:inline-block;padding:7px 11px;border:1px solid rgba(82,201,216,.28);border-radius:999px;color:#bff7ff;background:rgba(82,201,216,.08);font-size:.8rem;letter-spacing:.09em;text-transform:uppercase}
h1{margin:18px 0 12px;font-size:clamp(2.8rem,7vw,5.8rem);line-height:.98;letter-spacing:-.05em}
.lead{max-width:760px;margin:0;color:var(--muted);font-size:1.12rem;line-height:1.7}
.section-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:8px 0 80px}
.section-card{display:flex;flex-direction:column;min-height:235px;padding:24px;border:1px solid var(--border);border-radius:20px;text-decoration:none;background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.03));box-shadow:var(--shadow);transition:.18s ease}
.section-card:hover{transform:translateY(-3px);border-color:rgba(82,201,216,.34)}
.card-kicker{color:var(--blue);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}
.section-card h2{margin:13px 0 10px;font-size:1.45rem}
.section-card p{margin:0;color:var(--muted);line-height:1.55;font-size:.94rem}
.card-link{margin-top:auto;padding-top:20px;color:#fff;font-weight:700;font-size:.86rem}
.section-hero{padding:72px 0 35px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tags span{padding:6px 9px;border:1px solid var(--border);border-radius:999px;color:#d8e3ee;font-size:.78rem}
.content-panel,.status-panel{margin-bottom:28px;padding:28px;border:1px solid var(--border);border-radius:20px;background:rgba(255,255,255,.045);line-height:1.75;color:#d8e3ee}
.content-panel h2,.content-panel h3,.status-panel h2{color:#fff}
.status-panel{border-color:rgba(255,200,79,.2)}
.site-footer{margin-top:32px;padding:27px 0 34px;border-top:1px solid rgba(255,255,255,.08);color:#8da2b8;font-size:.84rem}
.footer-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-links{display:flex;gap:16px;flex-wrap:wrap}
.footer-links a{text-decoration:none;color:#9fb4c9}
@media(max-width:900px){
  .research-hero{grid-template-columns:210px 1fr;gap:32px}
  .section-grid{grid-template-columns:repeat(2,1fr)}
  .main-nav{display:none}
}
@media(max-width:620px){
  .shell{width:min(100% - 24px,1180px)}
  .research-hero{grid-template-columns:1fr;padding-top:44px}
  .hero-logo img{max-width:190px}
  .section-grid{grid-template-columns:1fr}
  .section-card{min-height:205px}
}


/* v1.2 — Latest news */
.latest-news{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:20px;
  margin-bottom:34px;
  padding:17px 20px;
  border:1px solid rgba(82,201,216,.20);
  border-left:3px solid var(--gold);
  border-radius:16px;
  background:linear-gradient(100deg,rgba(255,200,79,.075),rgba(82,201,216,.045));
  box-shadow:0 14px 38px rgba(0,0,0,.16);
}
.latest-news-label{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--gold);
  font-size:.75rem;
  font-weight:800;
  letter-spacing:.12em;
}
.news-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 12px rgba(255,200,79,.75);
}
.latest-news-content{min-width:0}
.latest-news-meta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:3px;
  color:#8fa8bd;
  font-size:.7rem;
  letter-spacing:.08em;
}
.latest-news-title{
  display:inline-block;
  color:#fff;
  text-decoration:none;
  font-size:1rem;
  line-height:1.35;
  font-weight:750;
}
.latest-news-title:hover{color:#d9f9ff}
.latest-news-content p{
  margin:4px 0 0;
  color:var(--muted);
  font-size:.84rem;
  line-height:1.45;
}
.latest-news-link{
  white-space:nowrap;
  text-decoration:none;
  color:#07111f;
  background:var(--gold);
  border-radius:10px;
  padding:9px 12px;
  font-size:.8rem;
  font-weight:800;
}

/* v1.2 — Articles */
.article-list{padding:0 0 80px}
.article-card{
  display:grid;
  grid-template-columns:minmax(230px,34%) 1fr;
  overflow:hidden;
  border:1px solid var(--border);
  border-radius:22px;
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.035));
  box-shadow:var(--shadow);
}
.article-card-image{
  min-height:280px;
  background:#02060b;
}
.article-card-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.article-card-body{padding:30px}
.article-card-date{
  color:var(--blue);
  font-size:.75rem;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.article-card h2{margin:10px 0 12px;font-size:clamp(1.55rem,3vw,2.2rem)}
.article-card h2 a{text-decoration:none}
.article-card p{color:var(--muted);line-height:1.65}
.article-read-link{display:inline-block;margin-top:12px;color:#fff;text-decoration:none;font-weight:750}

.research-article{
  max-width:980px;
  padding-top:38px;
  padding-bottom:82px;
}
.article-breadcrumb{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:48px;
  color:#91a7bc;
  font-size:.82rem;
}
.article-breadcrumb a{color:#a8cce6;text-decoration:none}
.article-header{max-width:900px;margin-bottom:42px}
.article-header h1{max-width:900px;margin-left:0;font-size:clamp(2.4rem,6vw,4.7rem)}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  margin-top:21px;
  color:#97abc0;
  font-size:.82rem;
}
.article-body{
  max-width:900px;
  color:#dce6ef;
  font-size:1.04rem;
  line-height:1.82;
}
.article-body p{margin:0 0 25px}
.article-intro{
  color:#eef6fb;
  font-size:1.18rem;
  line-height:1.75;
}
.article-media{
  margin:42px 0;
  border:1px solid var(--border);
  border-radius:18px;
  overflow:hidden;
  background:rgba(0,0,0,.18);
}
.article-media img,
.article-media video{
  width:100%;
  height:auto;
  display:block;
  background:#000;
}
.article-media figcaption{
  padding:16px 18px 18px;
  color:#aebfd0;
  font-size:.84rem;
  line-height:1.62;
}
.article-media figcaption strong{color:#f5f8fb}
.article-credits{
  margin-top:56px;
  padding:25px 28px;
  border-top:1px solid rgba(255,255,255,.12);
  border-bottom:1px solid rgba(255,255,255,.12);
  color:#aebfd0;
  font-size:.9rem;
}
.article-credits h2{color:#fff;font-size:1.3rem}
.article-credits a{color:#9fe7f1}
.article-credits ul{padding-left:20px}

@media(max-width:760px){
  .latest-news{
    grid-template-columns:1fr;
    gap:9px;
  }
  .latest-news-link{width:max-content}
  .article-card{grid-template-columns:1fr}
  .article-card-image{min-height:220px}
  .article-card-body{padding:22px}
  .article-media{margin:30px 0}
  .article-media figcaption{font-size:.8rem}
}

/* v1.3 — cards with secondary MPEC links */
.section-card-v13{padding:0;overflow:hidden}
.section-card-main{display:flex;flex-direction:column;flex:1;padding:24px;text-decoration:none;color:inherit}
.section-card-v13:hover{transform:translateY(-3px);border-color:rgba(82,201,216,.34)}
.section-card-v13 .section-card-main:hover{color:inherit}
.card-secondary-link{display:block;padding:12px 24px 14px;border-top:1px solid rgba(255,255,255,.09);text-decoration:none;color:#ffe0a0;background:rgba(255,200,79,.055);font-size:.84rem;font-weight:750}
.card-secondary-link:hover{background:rgba(255,200,79,.12);color:#fff1ca}
.inline-cta{display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border-radius:11px;text-decoration:none;font-weight:750;background:linear-gradient(135deg,var(--gold),#ff9f43);color:#08203c}
.inline-cta:hover{filter:brightness(1.05)}


/* v1.7 — bilingual MPEC documentation and NEWS language links */
.latest-news-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px}
.latest-news-actions a{display:inline-flex;align-items:center;padding:6px 9px;border-radius:9px;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.045);color:#d9f4ff;text-decoration:none;font-size:.76rem;font-weight:700}
.latest-news-actions a:hover{background:rgba(82,201,216,.11);border-color:rgba(82,201,216,.30);color:#fff}
.mpec-doc-nav{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:20px 0 6px}
.doc-anchor-link{display:inline-flex;align-items:center;padding:9px 12px;border-radius:10px;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.045);color:#d8e8f5;text-decoration:none;font-weight:700;font-size:.86rem}
.doc-anchor-link:hover{background:rgba(82,201,216,.10);color:#fff}
.doc-separator{border:0;border-top:1px solid rgba(255,255,255,.11);margin:34px 0}
.mpec-doc-section{scroll-margin-top:95px}
.mpec-doc-section h2{margin-top:0}
.mpec-doc-section h3{margin:28px 0 10px;color:#cceef4;font-size:1.1rem}
.mpec-doc-section ul,.mpec-doc-section ol{padding-left:1.4rem}
.mpec-doc-section li{margin:.42rem 0}

/* v1.8 — ordered global navigation */
.main-nav{flex:1;max-width:970px;align-content:flex-start}
.main-nav a.active,.main-nav a[aria-current="page"]{color:#fff;background:rgba(82,201,216,.13);box-shadow:inset 0 0 0 1px rgba(82,201,216,.18)}
@media(max-width:1180px){
  .header-row{align-items:flex-start;flex-direction:column;gap:14px}
  .main-nav{display:flex!important;width:100%;max-width:none;justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding-bottom:5px;scrollbar-width:thin}
  .main-nav a{white-space:nowrap}
}

/* v1.8 — one-line latest update reference */
.section-latest-update{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  margin-bottom:20px;padding:10px 14px;
  border-left:3px solid var(--gold);border-radius:10px;
  background:rgba(255,200,79,.065);color:var(--muted);font-size:.84rem;
}
.section-latest-update a{color:#fff;text-decoration:none;font-weight:750}
.section-latest-update a:hover{color:#dffbff}
.card-latest-update{
  display:block;margin-top:10px;padding-top:10px;border-top:1px solid rgba(255,255,255,.08);
  color:#d7e6f4;text-decoration:none;font-size:.78rem;line-height:1.35;
}
.card-latest-update:hover{color:#fff}

/* v2.4 — global IT/EN language selector */
.header-actions{display:flex;align-items:flex-start;justify-content:flex-end;gap:10px;flex:1}.language-switcher{display:inline-flex;align-items:center;gap:4px;padding:5px 8px;border:1px solid rgba(255,255,255,.13);border-radius:999px;background:rgba(255,255,255,.035);font-size:.73rem;font-weight:800;white-space:nowrap;margin-top:3px}.language-switcher a{padding:3px 5px;color:var(--muted);text-decoration:none;border-radius:6px}.language-switcher a.active{color:#07111f;background:var(--blue)}.language-switcher span{color:#65788d}@media(max-width:1180px){.header-actions{width:100%;align-items:center}.language-switcher{flex:0 0 auto;margin-top:0}}@media(max-width:620px){.header-actions{align-items:flex-start;flex-direction:column}.language-switcher{align-self:flex-end}}

/* v2.5 — S04005 Astrometry article */
.section-featured-article{margin-top:24px;padding:22px 24px;border:1px solid rgba(82,201,216,.22);border-left:3px solid var(--blue);border-radius:16px;background:linear-gradient(135deg,rgba(82,201,216,.075),rgba(255,255,255,.025))}
.section-featured-article h3{margin:7px 0 10px;color:#fff;font-size:1.35rem}.section-featured-article p{margin:0 0 16px}.section-featured-kicker{color:var(--blue);font-size:.76rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.article-status-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.article-status-tags span{padding:7px 10px;border:1px solid rgba(255,200,79,.25);border-radius:999px;background:rgba(255,200,79,.075);color:#ffe8a8;font-size:.78rem;font-weight:750}
.article-notice{margin:28px 0;padding:18px 20px;border-left:3px solid var(--gold);border-radius:12px;background:rgba(255,200,79,.07);color:#e8edf4;line-height:1.65}.article-notice strong{color:#fff}
.article-table-wrap{margin:26px 0 34px;overflow-x:auto;border:1px solid var(--border);border-radius:14px;background:rgba(0,0,0,.12)}
.article-data-table{width:100%;border-collapse:collapse;min-width:580px;font-size:.92rem}.article-data-table th,.article-data-table td{padding:11px 13px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08);white-space:nowrap}.article-data-table th{background:rgba(82,201,216,.08);color:#fff;font-weight:750}.article-data-table td{color:#d9e4ee}.article-data-table tr:last-child td{border-bottom:0}
.article-reference-list{padding-left:1.35rem}.article-reference-list li{margin:.65rem 0;line-height:1.65}.article-reference-list a{color:#9fe7f1}
.article-media--observational img{width:auto;max-width:100%;margin:0 auto}
@media(max-width:620px){.section-featured-article{padding:18px}.article-data-table{font-size:.84rem}.article-data-table th,.article-data-table td{padding:9px 10px}.research-article{width:min(100% - 22px,980px)}.article-media{border-radius:12px}}


/* v2.6 — dedicated Comets latest page links */
.tags .tag-new{display:inline-flex;align-items:center;padding:6px 10px;border:1px solid rgba(255,200,79,.32);border-radius:999px;background:rgba(255,200,79,.09);color:#ffe6a2;text-decoration:none;font-size:.78rem;font-weight:800}
.tags .tag-new:hover{background:rgba(255,200,79,.16);color:#fff}
.card-new-link{color:#ffe6a2!important;border-top-color:rgba(255,200,79,.2)!important}
.comet-featured{border-left-color:var(--gold)}