/* Shared template for Department of Chemistry research-group sites (fprcg/, ccg/).
   Each site sets data-group on <body>; the accent palette below switches on it. */
:root{
  --paper:#F6F3EC; --paper-2:#EFEAE0; --ink:#1B1915; --ink-2:#4A463F; --mute:#6F695F;
  --line:rgba(27,25,21,.08); --shell:rgba(27,25,21,.045);
  --ac:#1E4D3A; --ac-2:#C7922F; --soft:#DCE6DD; --soft-2:#F1E3C6;
  --serif:"Instrument Serif",Georgia,serif; --sans:"Geist",system-ui,sans-serif;
  --ease:cubic-bezier(.32,.72,0,1);
  --r:2rem; --r-in:calc(2rem - .4rem);
}
body[data-group="ccg"]{ --ac:#222E7A; --ac-2:#B4473B; --soft:#DFE2F2; --soft-2:#F2DDD8; }
body[data-group="gneg"]{ --ac:#0E4E5A; --ac-2:#C2702E; --soft:#D8E7E8; --soft-2:#F3E1CF; }
.rg-feature{width:100%;height:100%;min-height:360px;object-fit:cover}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:40;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
img{display:block;max-width:100%}
a{color:inherit}
:focus-visible{outline:2px solid var(--ac);outline-offset:3px;border-radius:8px}
.rg-skip{position:fixed;left:16px;top:-60px;z-index:50;background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:99px;text-decoration:none;font-size:14px;transition:top .4s var(--ease)}
.rg-skip:focus{top:16px}
.rg-w{max-width:1240px;margin:0 auto;padding:0 32px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:400;margin:0;letter-spacing:-.015em}
h2{font-size:clamp(44px,5.6vw,80px);line-height:.98}
p{margin:0 0 1em}
section[id],footer[id]{scroll-margin-top:90px}

/* eyebrow pill */
.rg-eye{display:inline-flex;align-items:center;gap:8px;border-radius:99px;padding:5px 12px;font:500 10.5px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--ac);background:var(--shell);box-shadow:inset 0 0 0 1px var(--line);margin-bottom:22px}
.rg-eye::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ac-2)}

/* double bezel */
.rg-bz{background:var(--shell);box-shadow:inset 0 0 0 1px var(--line);padding:.4rem;border-radius:var(--r)}
.rg-core{background:#FFFDF8;border-radius:var(--r-in);box-shadow:inset 0 1px 1px rgba(255,255,255,.7),0 1px 2px rgba(27,25,21,.04),0 24px 48px -28px rgba(27,25,21,.18);height:100%;overflow:hidden;position:relative}
.rg-core.rg-tint{background:var(--soft)}
.rg-core.rg-dark{background:var(--ac);color:#F6F3EC}

/* buttons: island + nested icon */
.rg-btn{display:inline-flex;align-items:center;gap:14px;padding:7px 7px 7px 24px;border-radius:99px;font:500 15px var(--sans);text-decoration:none;background:var(--ink);color:var(--paper);border:0;cursor:pointer;transition:transform .6s var(--ease),background .6s var(--ease)}
.rg-btn i{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.12);transition:transform .6s var(--ease)}
.rg-btn:hover i{transform:translate(3px,-1px) scale(1.06)}
.rg-btn:active{transform:scale(.98)}
.rg-btn.rg-ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px rgba(27,25,21,.18)}
.rg-btn.rg-ghost i{background:var(--shell)}
.rg-btn.rg-light{background:var(--paper);color:var(--ink)}
.rg-btn.rg-light i{background:var(--soft)}
.rg-btn svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.4}

/* floating island nav */
.rg-navwrap{position:fixed;top:20px;left:0;right:0;z-index:30;display:flex;justify-content:center;pointer-events:none;padding:0 16px}
.rg-nav{pointer-events:auto;display:flex;align-items:center;gap:6px;padding:6px 6px 6px 20px;border-radius:99px;background:rgba(246,243,236,.72);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);box-shadow:inset 0 0 0 1px var(--line),0 12px 40px -18px rgba(27,25,21,.25)}
.rg-logo{font:400 24px/1 var(--serif);text-decoration:none;color:var(--ac);margin-right:14px}
.rg-links{display:flex;gap:2px}
.rg-links a{padding:9px 14px;border-radius:99px;font-size:14px;text-decoration:none;color:var(--ink-2);transition:background .5s var(--ease),color .5s var(--ease)}
.rg-links a:hover{background:var(--shell);color:var(--ink)}
.rg-nav .rg-btn{padding:5px 5px 5px 18px;font-size:14px;margin-left:6px}
.rg-nav .rg-btn i{width:30px;height:30px}
.rg-burger{display:none;width:44px;height:44px;border-radius:50%;border:0;background:var(--ink);cursor:pointer;position:relative}
.rg-burger span{position:absolute;left:14px;right:14px;height:1.5px;background:var(--paper);transition:transform .6s var(--ease),top .6s var(--ease)}
.rg-burger span:first-child{top:18px}.rg-burger span:last-child{top:25px}
.rg-menu-open .rg-burger span:first-child{top:21.5px;transform:rotate(45deg)}
.rg-menu-open .rg-burger span:last-child{top:21.5px;transform:rotate(-45deg)}
.rg-overlay{position:fixed;inset:0;z-index:25;background:rgba(246,243,236,.86);backdrop-filter:blur(28px);-webkit-backdrop-filter:blur(28px);display:flex;flex-direction:column;justify-content:center;padding:0 28px;opacity:0;visibility:hidden;transition:opacity .6s var(--ease),visibility 0s .6s}
.rg-overlay a{font:400 46px/1.15 var(--serif);text-decoration:none;color:var(--ink);transform:translateY(48px);opacity:0;transition:transform .8s var(--ease),opacity .8s var(--ease)}
.rg-menu-open .rg-overlay{opacity:1;visibility:visible;transition:opacity .6s var(--ease)}
.rg-menu-open .rg-overlay a{transform:none;opacity:1}

/* hero */
.rg-hero{min-height:100dvh;padding:150px 0 90px;position:relative}
.rg-hero .rg-w{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.rg-hero h1{font-size:clamp(60px,8.4vw,128px);line-height:.9;letter-spacing:-.03em}
.rg-hero h1 em{font-style:italic;color:var(--ac)}
.rg-hero .rg-sub{font-size:19px;line-height:1.6;color:var(--ink-2);max-width:44ch;margin:30px 0 38px}
.rg-hero .rg-acts{display:flex;gap:12px;flex-wrap:wrap}
.rg-cascade{position:relative;height:620px}
.rg-cascade>*{position:absolute}
.rg-c1{inset:0 0 auto 8%;height:430px;transform:rotate(-2deg)}
.rg-c2{left:0;bottom:10px;width:46%;transform:rotate(3deg)}
.rg-c3{right:2%;bottom:0;width:44%;transform:rotate(-1deg)}
.rg-cascade img.rg-cover{width:100%;height:100%;object-fit:cover}
.rg-cascade .rg-cap{padding:16px 18px}
.rg-cap b{display:block;font:400 22px/1.1 var(--serif)}
.rg-cap span{font-size:13px;color:var(--mute)}
.rg-prod{display:grid;place-items:center;height:100%;padding:28px}
.rg-prod img{max-height:330px;mix-blend-mode:multiply}
.rg-avs{display:flex;padding:18px 18px 0}
.rg-avs img{width:46px;height:46px;border-radius:50%;object-fit:cover;object-position:top;margin-left:-10px;box-shadow:0 0 0 3px #FFFDF8}
.rg-avs img:first-child{margin-left:0}

/* sections */
.rg-sec{padding:140px 0}
.rg-sec.rg-alt{background:var(--paper-2)}
.rg-head{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;margin-bottom:64px}
.rg-head p{color:var(--ink-2);font-size:18px;max-width:44ch;justify-self:end;margin:0}

/* bento */
.rg-bento{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.s2{grid-column:span 2}.s3{grid-column:span 3}.s4{grid-column:span 4}.s5{grid-column:span 5}.s6{grid-column:span 6}.s7{grid-column:span 7}.s8{grid-column:span 8}.s12{grid-column:span 12}
.r2{grid-row:span 2}
.rg-pad{padding:40px}
.rg-big{font:400 clamp(26px,2.5vw,34px)/1.3 var(--serif);letter-spacing:-.01em}
.rg-big p{margin:0 0 .7em}
.rg-big p+p{color:var(--ink-2)}
.rg-stat{padding:30px 32px;display:flex;flex-direction:column;justify-content:space-between;min-height:190px}
.rg-stat b{font:400 76px/.9 var(--serif);letter-spacing:-.03em}
.rg-stat span{color:var(--ink-2);font-size:15px}
.rg-dark .rg-stat span,.rg-dark span{color:rgba(246,243,236,.75)}
.rg-pi{display:grid;grid-template-columns:44% 1fr;height:100%}
.rg-pi img{width:100%;height:100%;object-fit:cover;object-position:top;min-height:340px}
.rg-pi div{padding:32px}
.rg-pi h3{font-size:36px;line-height:1.02;margin-bottom:10px}
.rg-pi p{color:var(--ink-2);font-size:15px}
.rg-meta{font-size:14px;color:var(--mute);margin-top:18px;border-top:1px solid var(--line);padding-top:14px}

/* research cards */
.rg-area{display:flex;flex-direction:column;height:100%}
.rg-area figure{margin:0;background:#fff;aspect-ratio:16/8;display:grid;place-items:center;overflow:hidden;border-bottom:1px solid var(--line)}
.rg-area figure img{width:100%;height:100%;object-fit:contain;padding:14px}
.rg-area .rg-txt{padding:28px 30px 30px;display:flex;flex-direction:column;gap:12px;flex:1}
.rg-area h3{font-size:34px;line-height:1}
.rg-area p{color:var(--ink-2);font-size:15.5px;margin:0}
.rg-area cite{margin-top:auto;font-style:normal;font-size:13px;color:var(--mute);padding-top:14px;border-top:1px solid var(--line)}
.rg-area cite em{color:var(--ink)}
.rg-area cite a{text-decoration-color:var(--line);text-underline-offset:3px}
.rg-motif{aspect-ratio:16/8;display:grid;place-items:center;background:var(--soft);border-bottom:1px solid var(--line)}
.rg-motif svg{width:70%;height:70%;stroke:var(--ac);fill:none;stroke-width:1.3}

/* people scroller */
.rg-rail{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 32px 26px;margin:0 -32px;scrollbar-width:thin}
.rg-person{flex:0 0 268px;scroll-snap-align:start}
.rg-person .rg-ph{aspect-ratio:4/5;background:var(--paper-2);overflow:hidden}
.rg-person img{width:100%;height:100%;object-fit:cover;object-position:top;filter:saturate(.9);transition:transform 1.2s var(--ease)}
.rg-person:hover img{transform:scale(1.04)}
.rg-person .rg-cap{padding:16px 18px 20px}
.rg-person h4{font:400 24px/1.05 var(--serif);margin-bottom:6px}
.rg-person p{font-size:13.5px;color:var(--ink-2);margin:0}
.rg-person a{font-size:13px;color:var(--mute);text-underline-offset:3px;display:inline-block;margin-top:8px;word-break:break-all}
.rg-initials{width:100%;height:100%;display:grid;place-items:center;font:400 72px/1 var(--serif);color:var(--ac);background:var(--soft)}
.rg-tag{display:inline-block;font-size:11px;font-weight:500;letter-spacing:.06em;padding:3px 9px;border-radius:99px;background:var(--soft);color:var(--ac);margin-bottom:10px}
.rg-sub-h{font:400 34px/1.05 var(--serif);margin:56px 0 20px}
.rg-roster{width:100%;border-collapse:collapse}
.rg-roster td{padding:18px 20px;border-top:1px solid var(--line);vertical-align:top;font-size:15px}
.rg-roster tr:first-child td{border-top:0}
.rg-roster td:first-child{font:400 22px/1.15 var(--serif);width:32%}
.rg-roster td:nth-child(2){width:90px}
.rg-roster .rg-tbd{color:var(--mute)}
.rg-proj td:first-child{width:46%;font-size:20px}
.rg-proj td:nth-child(2){width:120px;white-space:nowrap}
.rg-proj td:last-child{color:var(--ink-2)}

/* facilities */
.rg-eq{display:flex;flex-direction:column;height:100%}
.rg-eq .rg-prod{background:#fff;aspect-ratio:5/4;height:auto}
.rg-eq .rg-prod img{max-height:240px}
.rg-eq .rg-cap{padding:22px 26px 26px}
.rg-eq dl{display:grid;grid-template-columns:max-content 1fr;gap:4px 14px;margin:10px 0 0;font-size:14px}
.rg-eq dt{color:var(--mute)}.rg-eq dd{margin:0}
.rg-sw{padding:30px 32px;display:flex;flex-direction:column;justify-content:space-between;min-height:170px}
.rg-sw b{font:400 32px/1 var(--serif)}
.rg-sw span{color:var(--ink-2);font-size:14.5px}
.rg-dark .rg-sw span{color:rgba(246,243,236,.75)}

/* gallery */
.rg-gal{display:grid;grid-template-columns:2fr 1fr;grid-template-rows:260px 260px;gap:18px}
.rg-gal .rg-bz:first-child{grid-row:span 2}
.rg-gal img{width:100%;height:100%;object-fit:cover}
.rg-gal-lg{grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(3,220px)}
.rg-gal-lg .rg-bz:first-child{grid-column:span 2}

/* publications */
.rg-years{display:flex;gap:6px;flex-wrap:wrap;padding:26px 30px;border-bottom:1px solid var(--line)}
.rg-years button{font:500 13.5px var(--sans);padding:9px 16px;border-radius:99px;border:0;background:var(--shell);color:var(--ink-2);cursor:pointer;transition:background .5s var(--ease),color .5s var(--ease)}
.rg-years button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.rg-pubs{list-style:none;margin:0;padding:0 30px}
.rg-pubs li{display:grid;grid-template-columns:110px 1fr;gap:28px;padding:26px 0;border-bottom:1px solid var(--line)}
.rg-pubs li:last-child{border-bottom:0}
.rg-pubs li[hidden]{display:none}
.rg-pubs .rg-y{font:400 34px/1 var(--serif);color:var(--ac)}
.rg-pubs b{display:block;font:400 23px/1.25 var(--serif);margin-bottom:8px;max-width:60ch}
.rg-pubs b a{text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .6s var(--ease)}
.rg-pubs b a:hover{background-size:100% 1px}
.rg-pubs span{font-size:14px;color:var(--mute)}
.rg-pubs em{color:var(--ink-2)}
.rg-pubs-foot{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:22px 30px 26px;border-top:1px solid var(--line);font-size:14px;color:var(--mute)}
.rg-pubs-foot[hidden]{display:none}

/* news */
.rg-news{display:flex;flex-direction:column;height:100%}
.rg-news .rg-ph{aspect-ratio:16/10;overflow:hidden}
.rg-news img{width:100%;height:100%;object-fit:cover;object-position:center 30%}
.rg-news .rg-cap{padding:24px 26px 28px}
.rg-news h3{font-size:28px;line-height:1.05;margin:10px 0 10px}
.rg-news p{font-size:15px;color:var(--ink-2);margin:0}
.rg-news time{display:block;font-size:13px;color:var(--mute);margin-top:12px}
.rg-empty{padding:56px;display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center}
.rg-empty svg{width:64px;height:64px;stroke:var(--ac);fill:none;stroke-width:1.2}
.rg-empty h3{font-size:34px;margin-bottom:6px}
.rg-empty p{color:var(--ink-2);margin:0;max-width:52ch}

/* footer CTA */
.rg-foot{padding:40px 0 40px}
.rg-cta{padding:90px 72px 56px;background:var(--ac);color:var(--paper)}
.rg-cta h2{font-size:clamp(56px,9vw,150px);line-height:.88;letter-spacing:-.035em;max-width:11ch}
.rg-cta h2 em{color:var(--ac-2);font-style:italic}
.rg-cta .rg-lede{font-size:19px;max-width:48ch;margin:28px 0 34px;color:rgba(246,243,236,.82)}
.rg-cta .rg-row{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px;margin-top:64px;padding-top:32px;border-top:1px solid rgba(246,243,236,.18);font-size:15px}
.rg-cta .rg-row p{margin:0 0 4px;color:rgba(246,243,236,.78)}
.rg-cta .rg-row p.rg-name{color:var(--paper)}
.rg-cta .rg-row h4{font:500 12px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:rgba(246,243,236,.55);margin-bottom:12px}
.rg-cta a{color:var(--paper)}
.rg-cta .rg-eye{background:rgba(246,243,236,.1);color:var(--paper);box-shadow:none}
.rg-base{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:26px 8px 0;font-size:13.5px;color:var(--mute)}

/* reveal: only hidden once JS has marked the page, so content shows without JS */
.rg-js .rv{opacity:0;transform:translateY(56px);filter:blur(10px);transition:opacity 1s var(--ease),transform 1.1s var(--ease),filter 1s var(--ease)}
.rg-js .rv.in{opacity:1;transform:none;filter:none}
.rg-cascade .rg-c1,.rg-js .rg-cascade .rv.in.rg-c1{transform:rotate(-2deg)}
.rg-cascade .rg-c2,.rg-js .rg-cascade .rv.in.rg-c2{transform:rotate(3deg)}
.rg-cascade .rg-c3,.rg-js .rg-cascade .rv.in.rg-c3{transform:rotate(-1deg)}
.shot .rv{opacity:1!important;transform:none!important;filter:none!important;transition:none!important}.shot .rg-hero{min-height:auto}.shot .rg-navwrap{position:absolute}
@media (prefers-reduced-motion:reduce){.rg-js .rv{opacity:1;transform:none;filter:none;transition:none}html{scroll-behavior:auto}}

@media (max-width:1180px){
  .rg-links,.rg-nav .rg-btn{display:none}.rg-burger{display:block}
  .rg-nav{padding:6px 6px 6px 22px;gap:40px}
}
@media (max-width:1020px){
  .rg-hero .rg-w,.rg-head{grid-template-columns:1fr}
  .rg-head p{justify-self:start}
  .rg-cascade{height:520px}
  .s2,.s3,.s4,.s5{grid-column:span 6}.s7,.s8{grid-column:span 12}
}
@media (max-width:767px){
  .rg-w{padding:0 16px}
  .rg-hero{padding:120px 0 60px;min-height:auto}
  .rg-sec{padding:88px 0}
  .rg-cascade{height:auto;display:grid;gap:14px}
  .rg-cascade>*{position:static;width:auto!important;transform:none!important;height:auto}
  .rg-c1{height:280px!important}
  .rg-bento{grid-template-columns:1fr;gap:14px}
  .rg-bento>*{grid-column:auto!important;grid-row:auto!important}
  .rg-pad{padding:28px}
  .rg-pi{grid-template-columns:1fr}.rg-pi img{min-height:0;aspect-ratio:4/4}
  .rg-rail{padding:4px 16px 22px;margin:0 -16px}
  .rg-person{flex-basis:230px}
  .rg-roster tr{display:block;padding:16px 18px;border-top:1px solid var(--line)}
  .rg-roster tr:first-child{border-top:0}
  .rg-roster td{display:block;border:0;padding:2px 0;width:auto!important}
  .rg-gal{grid-template-columns:1fr;grid-template-rows:auto}
  .rg-gal .rg-bz{height:220px}.rg-gal .rg-bz:first-child{grid-row:auto}
  .rg-gal-lg{grid-template-columns:1fr 1fr}.rg-gal-lg .rg-bz{height:150px}.rg-gal-lg .rg-bz:first-child{grid-column:span 2;height:220px}
  .rg-pubs{padding:0 20px}.rg-years{padding:20px}.rg-pubs-foot{padding:20px}
  .rg-pubs li{grid-template-columns:1fr;gap:6px}
  .rg-empty{grid-template-columns:1fr;padding:32px}
  .rg-cta{padding:56px 26px 36px}
  .rg-cta .rg-row{grid-template-columns:1fr;gap:24px}
  .rg-overlay a{font-size:40px}
}