/* ==========================================================================
   Organometallics & Polymer Chemistry Group — IIT Madras
   v2 design system: deep navy + white, serif headings, polymer-chain motif.
   ========================================================================== */

:root{
  --navy-900:#081428;
  --navy-800:#0A1A34;
  --navy-700:#12325C;
  --navy-600:#17417A;
  --blue-500:#1E5FA8;
  --blue-400:#2E7CC9;
  --blue-300:#6FA8DC;
  --blue-200:#A8CBEA;
  --ice:#EAF1F8;
  --ice-2:#F5F9FD;
  --white:#FFFFFF;

  --ink:#0C1B2E;
  --body:#33445C;
  --muted-txt:#5E718C;

  --rule:rgba(12,27,46,.12);
  --rule-2:rgba(12,27,46,.07);
  --rule-dark:rgba(255,255,255,.16);

  --serif:"Newsreader","Iowan Old Style",Georgia,"Times New Roman",serif;
  --sans:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;

  --pad:clamp(1.25rem,5vw,5rem);
  --maxw:1300px;
  --ease:cubic-bezier(.22,1,.36,1);
  --shadow-sm:0 2px 8px rgba(8,20,40,.06);
  --shadow-md:0 12px 32px -12px rgba(8,20,40,.18);
  --shadow-lg:0 30px 70px -28px rgba(8,20,40,.35);
}

*,*::before,*::after{box-sizing:border-box}
/* `clip` (not `hidden`) contains the off-canvas menu without breaking
   position:sticky on the header and sub-navigation. */
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;background:var(--white);color:var(--body);
  font-family:var(--sans);font-size:clamp(1rem,.96rem + .16vw,1.06rem);
  line-height:1.68;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
p{margin:0}
h1,h2,h3,h4,h5{
  font-family:var(--serif);color:var(--ink);margin:0;
  font-weight:600;line-height:1.12;letter-spacing:-.018em
}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.section{padding-block:clamp(4rem,9vw,8rem)}
.section-tight{padding-block:clamp(3rem,6vw,5rem)}

/* ---------- skip link ---------- */
.skip{
  position:absolute;left:-9999px;top:0;background:var(--navy-800);color:#fff;
  padding:.8rem 1.3rem;z-index:10000;border-radius:0 0 4px 0;font-weight:600
}
.skip:focus{left:0;top:0}

/* ============================ NAV ============================ */
.nav{
  position:sticky;top:0;z-index:900;background:rgba(255,255,255,.88);
  backdrop-filter:blur(16px) saturate(160%);border-bottom:1px solid var(--rule-2);
  transition:box-shadow .35s var(--ease)
}
.nav.stuck{box-shadow:var(--shadow-sm)}
.nav-in{
  display:flex;align-items:center;gap:1.25rem;min-height:76px;
  max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)
}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;margin-right:auto;flex-shrink:0}
.brand img{width:40px;height:40px;object-fit:contain}
.brand-txt{display:flex;flex-direction:column;line-height:1.16}
.brand-txt b{font-family:var(--serif);font-size:1.06rem;font-weight:650;color:var(--ink);letter-spacing:-.015em}
.brand-txt span{
  font-size:.66rem;letter-spacing:.15em;text-transform:uppercase;
  color:var(--blue-500);font-weight:600
}

.nav-links{display:flex;gap:.35rem;align-items:center;list-style:none;margin:0;padding:0}
/* Never let a nav item compress below its own text — doing so wraps the
   label inside a pill sized for one line. */
.nav-links > li{position:relative;flex-shrink:0}
.nav-links a,.nav-links .drop-btn{
  display:flex;align-items:center;gap:.35rem;text-decoration:none;
  font:inherit;font-size:.875rem;font-weight:500;color:var(--body);
  padding:.55rem .8rem;border-radius:7px;border:0;background:none;cursor:pointer;
  white-space:nowrap;
  transition:color .25s,background .25s
}
.nav-links a:hover,.nav-links .drop-btn:hover{color:var(--blue-500);background:var(--ice)}
.nav-links a[aria-current="page"]{color:var(--blue-500);font-weight:600}
.drop-btn svg{width:13px;height:13px;transition:transform .3s var(--ease)}
.drop[data-open="true"] .drop-btn svg{transform:rotate(180deg)}
.drop[data-open="true"] .drop-btn{color:var(--blue-500);background:var(--ice)}

.drop-menu{
  position:absolute;top:calc(100% + .5rem);left:0;min-width:270px;
  background:var(--white);border:1px solid var(--rule);border-radius:12px;
  box-shadow:var(--shadow-md);padding:.5rem;list-style:none;margin:0;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s
}
.drop[data-open="true"] .drop-menu{opacity:1;visibility:visible;transform:none}
.drop-menu a{
  display:block;padding:.6rem .8rem;border-radius:8px;font-size:.875rem;line-height:1.4
}
.drop-menu a b{display:block;font-weight:600;color:var(--ink);font-family:var(--sans)}
.drop-menu a span{display:block;font-size:.76rem;color:var(--muted-txt);margin-top:.12rem}
.drop-menu a:hover b{color:var(--blue-500)}

/* Primary call to action.
   Selector must be `.nav-links .nav-cta` (0,2,0): plain `.nav-cta` (0,1,0) is
   outranked by `.nav-links a` (0,1,1) above, which sets `background:none` and
   would leave the button white-on-white.
   Gradient stops are chosen so the lightest point still clears WCAG AA
   (4.5:1) against white text, in both the rest and hover states. */
.nav-links .nav-cta{
  margin-left:.6rem;
  background:linear-gradient(135deg,#1268D6 0%,#0A4F9E 100%);
  color:#fff;
  padding:.72rem 1.45rem;border-radius:999px;
  font-weight:700;letter-spacing:.012em;
  box-shadow:0 8px 20px -6px rgba(18,104,214,.55),
             inset 0 1px 0 rgba(255,255,255,.2);
  transition:background .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease)
}
.nav-links .nav-cta:hover{
  background:linear-gradient(135deg,#1570E0 0%,#0A55AE 100%);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 14px 28px -8px rgba(18,104,214,.68),
             inset 0 1px 0 rgba(255,255,255,.28)
}
.nav-links .nav-cta:active{transform:translateY(0)}

.nav-tog{
  display:none;background:none;border:1px solid var(--rule);border-radius:9px;
  padding:.5rem;cursor:pointer;color:var(--ink);line-height:0
}
.nav-tog svg{width:22px;height:22px}
.nav-tog .x{display:none}
.nav-tog[aria-expanded="true"] .x{display:block}
.nav-tog[aria-expanded="true"] .burger{display:none}

/* Switch to the mobile menu while the bar still has room: brand + 8 items
   need ~1070px including page padding. Keep in sync with MOBILE in site.js. */
@media(max-width:1180px){
  .nav-tog{display:block}
  /* `.nav` uses backdrop-filter, which makes it a containing block for
     position:fixed children. `bottom:0` would therefore resolve against the
     76px nav bar and collapse the drawer, so set an explicit height instead.
     Dropping backdrop-filter here removes the quirk as well. */
  .nav{backdrop-filter:none;background:var(--white)}
  .nav-links{
    position:fixed;top:76px;left:0;right:0;
    height:calc(100vh - 76px);
    height:calc(100dvh - 76px);
    flex-direction:column;align-items:stretch;
    gap:.15rem;background:var(--white);padding:1.25rem var(--pad) 3rem;
    transform:translateX(100%);
    transition:transform .45s var(--ease),visibility .45s;
    overflow-y:auto;z-index:899;
    /* keep the closed panel out of the layout and out of the tab order */
    visibility:hidden
  }
  .nav-links.open{transform:none;visibility:visible}
  .nav-links a,.nav-links .drop-btn{
    font-size:1.05rem;padding:.85rem .6rem;width:100%;justify-content:space-between;
    border-bottom:1px solid var(--rule-2);border-radius:0
  }
  .drop-menu{
    position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;
    border:0;border-left:2px solid var(--blue-200);border-radius:0;margin:.25rem 0 .5rem .6rem;
    padding:.25rem 0 .25rem .75rem;min-width:0;display:none
  }
  .drop[data-open="true"] .drop-menu{display:block}
  .drop-menu a{border-bottom:0;font-size:.95rem;padding:.55rem .4rem}
  /* specificity must beat `.nav-links a` above, or the label sits left */
  .nav-links .nav-cta{margin:1.25rem 0 0;text-align:center;justify-content:center;border-bottom:0}
}

/* ============================ HERO ============================ */
.hero{
  position:relative;background:var(--navy-800);color:#fff;overflow:hidden;
  padding-block:clamp(4rem,10vw,8rem) clamp(3.5rem,8vw,6.5rem)
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(70% 60% at 82% 8%,rgba(46,124,201,.38),transparent 62%),
    radial-gradient(60% 70% at 8% 92%,rgba(30,95,168,.28),transparent 60%);
  pointer-events:none
}
.hero-chain{
  position:absolute;inset:0;width:100%;height:100%;
  opacity:.16;pointer-events:none;color:var(--blue-300)
}
.hero-in{
  position:relative;display:grid;grid-template-columns:1.15fr .85fr;
  gap:clamp(2rem,5vw,4.5rem);align-items:center;z-index:1
}
.hero h1,.hero h2,.hero h3{color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:.65rem;font-size:.7rem;letter-spacing:.2em;
  text-transform:uppercase;font-weight:700;color:var(--blue-300);margin-bottom:1.4rem
}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--blue-400);border-radius:2px}
.hero h1{
  font-size:clamp(2.35rem,5.9vw,4.6rem);letter-spacing:-.032em;
  margin-bottom:1.4rem;text-wrap:balance;font-weight:600
}
.hero h1 em{font-style:italic;color:var(--blue-300);font-weight:500}
.hero-lead{
  font-size:clamp(1.03rem,1.5vw,1.2rem);max-width:54ch;
  color:rgba(255,255,255,.82);margin-bottom:2.2rem
}
.hero-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2.2rem}
.hero-tags span{
  font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  padding:.4rem .85rem;border:1px solid rgba(255,255,255,.24);border-radius:999px;
  color:rgba(255,255,255,.86)
}
.hero-fig{position:relative}
.hero-fig img{
  width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:14px;
  box-shadow:var(--shadow-lg)
}
.hero-fig figcaption{
  margin-top:.9rem;font-size:.76rem;font-family:var(--mono);
  color:rgba(255,255,255,.62);line-height:1.6
}
@media(max-width:900px){
  .hero-in{grid-template-columns:1fr}
  .hero-fig{max-width:330px}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;
  font-size:.875rem;font-weight:600;letter-spacing:.01em;
  padding:.95rem 1.7rem;border-radius:999px;border:1.5px solid currentColor;
  color:var(--blue-500);background:transparent;cursor:pointer;
  transition:background .35s var(--ease),color .35s var(--ease),
             border-color .35s var(--ease),transform .35s var(--ease),box-shadow .35s var(--ease)
}
.btn:hover{background:var(--blue-500);color:#fff;border-color:var(--blue-500);
  transform:translateY(-2px);box-shadow:0 12px 26px -12px rgba(30,95,168,.75)}
.btn svg{width:15px;height:15px;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-solid{background:var(--blue-500);color:#fff;border-color:var(--blue-500)}
.btn-solid:hover{background:var(--navy-700);border-color:var(--navy-700)}
.btn-light{color:#fff;border-color:rgba(255,255,255,.5)}
.btn-light:hover{background:#fff;color:var(--navy-800);border-color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:.85rem}

/* ---------- polymer chain divider ---------- */
.chain-div{display:block;width:100%;height:44px;color:var(--blue-200);overflow:hidden}
.chain-div svg{width:100%;height:100%}
.chain-path{
  stroke-dasharray:var(--len,1400);stroke-dashoffset:var(--len,1400);
  transition:stroke-dashoffset 2s var(--ease)
}
.chain-div.in .chain-path{stroke-dashoffset:0}

/* ---------- stats ---------- */
.stats{background:var(--ice);border-block:1px solid var(--rule-2)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1rem,2vw,2rem)}
.stat{text-align:center;padding:clamp(1.75rem,3.5vw,2.75rem) .5rem}
.stat b{
  display:block;font-family:var(--serif);font-size:clamp(2.3rem,4.6vw,3.5rem);
  font-weight:600;line-height:1;color:var(--blue-500);letter-spacing:-.03em
}
.stat span{
  display:block;margin-top:.65rem;font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted-txt);font-weight:600
}
@media(max-width:700px){.stats-grid{grid-template-columns:repeat(2,1fr)}}

/* ---------- section head ---------- */
.sec-head{max-width:72ch;margin-bottom:clamp(2.25rem,4.5vw,3.5rem)}
.sec-head.center{margin-inline:auto;text-align:center}
.kicker{
  display:block;font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  font-weight:700;color:var(--blue-500);margin-bottom:1rem
}
.sec-head h2{font-size:clamp(1.85rem,3.9vw,2.95rem);margin-bottom:1rem;text-wrap:balance}
.sec-head p{font-size:1.05rem;color:var(--muted-txt);max-width:64ch}
.sec-head.center p{margin-inline:auto}
.on-dark{background:var(--navy-800);color:rgba(255,255,255,.82)}
.on-dark h1,.on-dark h2,.on-dark h3,.on-dark h4{color:#fff}
.on-dark .kicker{color:var(--blue-300)}
.on-dark .sec-head p{color:rgba(255,255,255,.72)}
.on-ice{background:var(--ice-2)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:1.5rem}
.card{
  background:var(--white);border:1px solid var(--rule);border-radius:14px;
  padding:clamp(1.5rem,2.6vw,2.1rem);position:relative;overflow:hidden;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s
}
.card::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,var(--blue-500),var(--blue-300));
  transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--blue-200)}
.card:hover::after{transform:scaleX(1)}
.card .num{font-family:var(--mono);font-size:.74rem;color:var(--blue-500);letter-spacing:.1em;font-weight:500}
.card h3{font-size:1.28rem;margin:.8rem 0 .7rem}
.card p{font-size:.94rem;color:var(--muted-txt)}
.card .more{
  display:inline-flex;align-items:center;gap:.4rem;margin-top:1.1rem;
  font-size:.82rem;font-weight:600;color:var(--blue-500);text-decoration:none
}
.card .more svg{width:14px;height:14px;transition:transform .3s var(--ease)}
.card:hover .more svg{transform:translateX(4px)}
a.card{text-decoration:none;display:block;color:inherit}

/* ---------- people ---------- */
.people{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1.75rem}
.person-ph{
  aspect-ratio:3/2;border-radius:12px;overflow:hidden;background:var(--navy-700);
  position:relative;margin-bottom:1rem;display:grid;place-items:center
}
.person-ph > span{font-family:var(--serif);font-size:2.4rem;color:var(--blue-200)}
.person-ph img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 22%;
  transition:transform .8s var(--ease),filter .6s var(--ease)
}
.person:hover .person-ph img{transform:scale(1.05)}
.person h3{font-size:1.04rem;margin-bottom:.28rem}
.person .role{
  font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--blue-500);font-weight:700;margin-bottom:.55rem
}
.person p{font-size:.875rem;color:var(--muted-txt)}
.person .edu{font-size:.79rem;color:var(--muted-txt);opacity:.85;margin-top:.45rem;font-style:italic}

/* ---------- tables ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:.92rem}
.tbl th{
  text-align:left;font-size:.68rem;letter-spacing:.15em;text-transform:uppercase;
  font-weight:700;color:var(--muted-txt);padding:.8rem 1rem .8rem 0;
  border-bottom:2px solid var(--rule);white-space:nowrap
}
.tbl td{padding:1rem 1rem 1rem 0;border-bottom:1px solid var(--rule-2);vertical-align:top}
.tbl tbody tr{transition:background .25s}
.tbl tbody tr:hover{background:var(--ice-2)}
.tbl .yr{font-family:var(--mono);font-size:.84rem;color:var(--blue-500);white-space:nowrap;font-weight:500}
.tbl .nm{font-weight:600;color:var(--ink);white-space:nowrap}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
@media(max-width:700px){
  .tbl,.tbl tbody,.tbl tr,.tbl td{display:block;width:100%}
  .tbl thead{display:none}
  .tbl tr{border-bottom:1px solid var(--rule);padding-block:.9rem}
  .tbl td{border:0;padding:.15rem 0}
  .tbl .nm{margin-bottom:.15rem}
}

/* ---------- publications ---------- */
.pub-tools{
  display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;
  margin-bottom:2.25rem;padding-bottom:1.35rem;border-bottom:1px solid var(--rule)
}
.chip{
  font:inherit;font-size:.79rem;font-weight:600;padding:.5rem 1rem;border-radius:999px;
  border:1px solid var(--rule);background:var(--white);color:var(--body);cursor:pointer;
  transition:all .28s var(--ease)
}
.chip:hover{border-color:var(--blue-400);color:var(--blue-500)}
.chip[aria-pressed="true"]{background:var(--blue-500);color:#fff;border-color:var(--blue-500)}
.pub-search{
  flex:1;min-width:230px;font:inherit;font-size:.875rem;padding:.6rem 1.05rem;
  border:1px solid var(--rule);border-radius:999px;background:var(--white);color:var(--ink)
}
.pub-search::placeholder{color:var(--muted-txt)}
.pub-search:focus{outline:2px solid var(--blue-400);outline-offset:1px;border-color:transparent}
.pub-count{font-size:.78rem;color:var(--muted-txt);font-family:var(--mono);width:100%}

.pub{
  display:grid;grid-template-columns:3.6rem 1fr;gap:1.35rem;
  padding:1.35rem 0;border-bottom:1px solid var(--rule-2)
}
.pub .idx{font-family:var(--mono);font-size:.78rem;color:var(--blue-300);padding-top:.2rem;font-weight:500}
.pub h3{
  font-family:var(--sans);font-size:1rem;font-weight:600;line-height:1.48;
  letter-spacing:0;margin-bottom:.45rem;color:var(--ink)
}
.pub .auth{font-size:.86rem;color:var(--muted-txt);margin-bottom:.3rem}
.pub .auth b{color:var(--blue-500);font-weight:600}
.pub .ven{font-size:.84rem;font-style:italic;color:var(--muted-txt)}
.pub[hidden]{display:none}
@media(max-width:600px){.pub{grid-template-columns:1fr;gap:.35rem}.pub .idx{padding-top:0}}

/* ---------- gallery / instruments ---------- */
.gal{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.15rem}
.gal figure{margin:0;border-radius:12px;overflow:hidden;background:var(--navy-700)}
.gal img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  transition:transform .8s var(--ease),filter .7s var(--ease)
}
.gal figure:hover img{transform:scale(1.05)}

.instr{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:1.75rem}
.instr figure{margin:0}
.instr .shot{
  border-radius:12px;overflow:hidden;background:var(--navy-700);box-shadow:var(--shadow-sm)
}
.instr img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  transition:transform .8s var(--ease),filter .7s var(--ease)
}
.instr figure:hover img{transform:scale(1.05)}
.instr figcaption{margin-top:.9rem}
.instr figcaption b{
  display:block;font-family:var(--sans);font-size:.97rem;font-weight:650;
  color:var(--ink);margin-bottom:.3rem
}
.instr figcaption span{display:block;font-size:.86rem;color:var(--muted-txt);line-height:1.6}

/* ---------- press ---------- */
.press-list{display:grid;gap:.85rem}
.press-item{
  display:flex;align-items:center;gap:1.5rem;text-decoration:none;
  background:var(--white);border:1px solid var(--rule);border-radius:12px;
  padding:1.35rem 1.6rem;transition:all .35s var(--ease)
}
.press-item:hover{border-color:var(--blue-300);box-shadow:var(--shadow-md);transform:translateX(4px)}
.press-item .src{
  font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;color:var(--blue-500);
  font-weight:700;min-width:10.5rem;flex-shrink:0
}
.press-item .ttl{flex:1;color:var(--ink);font-weight:500;line-height:1.5}
.press-item .dt{font-family:var(--mono);font-size:.76rem;color:var(--muted-txt);flex-shrink:0}
.press-item .arw{color:var(--blue-300);flex-shrink:0;transition:transform .35s var(--ease)}
.press-item:hover .arw{transform:translate(4px,-4px)}
@media(max-width:760px){
  .press-item{flex-direction:column;align-items:flex-start;gap:.5rem;padding:1.15rem 1.25rem}
  .press-item .src{min-width:0}
  .press-item .arw{display:none}
}

/* ---------- laurels ---------- */
.laurels{list-style:none;margin:0;padding:0;display:grid;gap:.75rem}
.laurels li{
  background:var(--white);border:1px solid var(--rule);border-left:3px solid var(--blue-400);
  border-radius:0 10px 10px 0;padding:1.1rem 1.4rem;font-size:.96rem;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease)
}
.laurels li:hover{transform:translateX(4px);box-shadow:var(--shadow-sm)}

/* ---------- funding ---------- */
.fund{display:grid;gap:.8rem}
.fund-row{
  display:grid;grid-template-columns:1fr auto;gap:.85rem 2rem;align-items:start;
  background:var(--white);border:1px solid var(--rule);border-radius:12px;padding:1.4rem 1.6rem;
  transition:border-color .3s,box-shadow .3s
}
.fund-row:hover{border-color:var(--blue-200);box-shadow:var(--shadow-sm)}
.fund-row h3{font-family:var(--sans);font-size:.99rem;font-weight:600;line-height:1.5;letter-spacing:0}
.fund-row .meta{font-size:.82rem;color:var(--muted-txt);margin-top:.4rem}
.fund-row .amt{font-family:var(--mono);font-size:.93rem;color:var(--blue-500);white-space:nowrap;font-weight:500}
@media(max-width:620px){.fund-row{grid-template-columns:1fr}}

/* ---------- prose ---------- */
.prose{max-width:70ch}
.prose h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:2.5rem 0 1rem}
.prose h3{font-size:1.22rem;margin:2rem 0 .75rem}
.prose p{margin-bottom:1.15rem}
.prose ul,.prose ol{margin:0 0 1.35rem;padding-left:1.3rem}
.prose li{margin-bottom:.55rem}
.prose strong{color:var(--ink);font-weight:650}
.prose a{color:var(--blue-500);text-decoration:underline;text-underline-offset:3px}

.split{display:grid;grid-template-columns:minmax(0,340px) 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.split-2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem)}
.split img{border-radius:14px;box-shadow:var(--shadow-md)}
@media(max-width:860px){
  .split{grid-template-columns:1fr}
  .split > picture{max-width:320px}
  .split-2{grid-template-columns:1fr}
}

/* ---------- sub-nav (research cluster) ---------- */
.subnav{
  background:var(--white);border-bottom:1px solid var(--rule);position:sticky;top:76px;z-index:800
}
.subnav-in{display:flex;gap:.35rem;overflow-x:auto;padding-block:.7rem;-webkit-overflow-scrolling:touch}
.subnav a{
  white-space:nowrap;text-decoration:none;font-size:.83rem;font-weight:600;
  padding:.5rem .95rem;border-radius:999px;color:var(--muted-txt);transition:all .28s
}
.subnav a:hover{background:var(--ice);color:var(--blue-500)}
.subnav a[aria-current="page"]{background:var(--blue-500);color:#fff}

/* ---------- video ---------- */
.vid-feature{display:grid;grid-template-columns:minmax(0,330px) 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.vid-feature video{
  width:100%;aspect-ratio:9/16;background:#000;border-radius:14px;display:block;
  box-shadow:var(--shadow-lg)
}
.vid-meta{
  font-family:var(--mono);font-size:.75rem;color:var(--muted-txt);
  display:flex;gap:1.15rem;flex-wrap:wrap;margin-top:1.35rem
}
.on-dark .vid-meta{color:rgba(255,255,255,.6)}
@media(max-width:860px){
  .vid-feature{grid-template-columns:1fr}
  .vid-feature video{max-width:330px;margin-inline:auto}
}

/* ---------- CTA ---------- */
.cta{
  background:var(--navy-800);color:#fff;text-align:center;position:relative;overflow:hidden;
  padding-block:clamp(4rem,9vw,7rem)
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(80% 120% at 50% 100%,rgba(46,124,201,.4),transparent 62%)
}
.cta-in{position:relative}
.cta h2{font-size:clamp(1.9rem,4.6vw,3.4rem);margin-bottom:1.15rem;text-wrap:balance;color:#fff}
.cta p{max-width:54ch;margin:0 auto 2.25rem;color:rgba(255,255,255,.78)}
.cta .btn-row{justify-content:center}

/* ---------- footer ---------- */
.foot{background:var(--navy-900);color:rgba(255,255,255,.72);padding-block:clamp(3rem,6vw,5rem) 2rem}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:clamp(1.75rem,4vw,3rem);margin-bottom:3rem}
.foot h4{
  font-family:var(--sans);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:700;color:rgba(255,255,255,.5);margin-bottom:1.15rem
}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:.65rem}
.foot a{text-decoration:none;font-size:.9rem;transition:color .25s}
.foot a:hover{color:var(--blue-300)}
.foot address{font-style:normal;font-size:.9rem;line-height:1.75}
.foot-brand{display:flex;align-items:center;gap:.8rem;margin-bottom:1.2rem}
.foot-brand img{width:46px;height:46px;object-fit:contain}
.foot-brand b{font-family:var(--serif);font-size:1.12rem;color:#fff;line-height:1.25}
.foot-bot{
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding-top:1.75rem;border-top:1px solid var(--rule-dark);
  font-size:.79rem;color:rgba(255,255,255,.45)
}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}

/* ---------- reveal (progressive enhancement) ---------- */
.rv{opacity:1;transform:none}
html.js .rv{opacity:0;transform:translateY(20px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
html.js .rv.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html.js .rv,html.js .rv.in{opacity:1!important;transform:none!important}
  .chain-path{stroke-dashoffset:0!important}
}

/* ---------- misc ---------- */
::selection{background:var(--blue-500);color:#fff}
:focus-visible{outline:2.5px solid var(--blue-400);outline-offset:3px;border-radius:3px}
::-webkit-scrollbar{width:11px}
::-webkit-scrollbar-track{background:var(--ice)}
::-webkit-scrollbar-thumb{background:var(--blue-300);border-radius:99px;border:3px solid var(--ice)}
::-webkit-scrollbar-thumb:hover{background:var(--blue-500)}

/* interior page hero */
.phero{
  background:var(--navy-800);color:#fff;position:relative;overflow:hidden;
  padding-block:clamp(3rem,7vw,5.5rem) clamp(2.5rem,5vw,4rem)
}
.phero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(70% 90% at 88% 0%,rgba(46,124,201,.35),transparent 60%)
}
.phero-in{position:relative;max-width:76ch}
.phero .eyebrow{margin-bottom:1.1rem}
.phero h1{font-size:clamp(2.1rem,5vw,3.7rem);margin-bottom:1rem;text-wrap:balance;color:#fff}
.phero p{color:rgba(255,255,255,.78);font-size:1.05rem}
.crumb{font-size:.78rem;color:rgba(255,255,255,.55);margin-bottom:1rem}
.crumb a{color:var(--blue-300);text-decoration:none}
.crumb a:hover{text-decoration:underline}