/* ==========================================================================
   π Lab — Predictive Imaging Lab, University of Greenwich
   Design system: "Bench & Detector"

   The page ground is a cool lab bench; imaging surfaces are deep detector
   panels inset into it. The accent pair (teal / copper) is the two poles of
   a compressive/tensile strain map, so the brand gradient is a real
   scientific colormap rather than decoration.
   ========================================================================== */

/* --------------------------------------------------------------- tokens -- */
:root{
  --bench:#E9EDEA;
  --bench-2:#F3F5F2;
  --surface:#FDFDFC;
  --film:#080D0E;
  --film-2:#101819;
  --film-ink:#E7EDEA;
  --ink:#0F1516;
  --ink-2:#41504F;
  --ink-3:#6E7C7A;
  --line:rgba(15,21,22,.14);
  --line-2:rgba(15,21,22,.07);
  --teal:#0E6E76;
  --teal-soft:rgba(14,110,118,.10);
  --copper:#B85C25;
  --copper-soft:rgba(184,92,37,.10);
  --r:3px;
  --nav-h:60px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bench:#080D0E;
    --bench-2:#0D1415;
    --surface:#121A1B;
    --film:#05090A;
    --film-2:#0D1516;
    --film-ink:#E7EDEA;
    --ink:#E4EBE8;
    --ink-2:#A5B3B0;
    --ink-3:#768482;
    --line:rgba(228,235,232,.15);
    --line-2:rgba(228,235,232,.07);
    --teal:#4FBEC0;
    --teal-soft:rgba(79,190,192,.12);
    --copper:#E08A45;
    --copper-soft:rgba(224,138,69,.12);
  }
}
:root[data-theme="dark"]{
  --bench:#080D0E;
  --bench-2:#0D1415;
  --surface:#121A1B;
  --film:#05090A;
  --film-2:#0D1516;
  --film-ink:#E7EDEA;
  --ink:#E4EBE8;
  --ink-2:#A5B3B0;
  --ink-3:#768482;
  --line:rgba(228,235,232,.15);
  --line-2:rgba(228,235,232,.07);
  --teal:#4FBEC0;
  --teal-soft:rgba(79,190,192,.12);
  --copper:#E08A45;
  --copper-soft:rgba(224,138,69,.12);
}

/* ---------------------------------------------------------------- base -- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 20px)}
body{
  margin:0;
  background:var(--bench);
  color:var(--ink);
  font-family:"Newsreader",Georgia,serif;
  font-optical-sizing:auto;
  font-size:17px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.display{
  font-family:"Archivo","Helvetica Neue",Arial,sans-serif;
  font-variation-settings:"wdth" 118;
  font-weight:700;
  letter-spacing:-.015em;
  line-height:1.05;
  text-wrap:balance;
  margin:0;
}
p{margin:0}
a{color:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px}

.mono{
  font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  font-weight:500;
}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--copper);color:#120A04;padding:10px 16px;border-radius:var(--r);
  font-family:"Archivo",sans-serif;font-size:14px;font-weight:600;text-decoration:none;
}
.skip:focus{left:12px;top:12px}

/* -------------------------------------------------------------- top bar -- */
.topbar{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb, var(--bench) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-2);
}
.topbar-in{display:flex;align-items:center;gap:28px;height:var(--nav-h)}
.mark{display:flex;align-items:center;gap:11px;text-decoration:none;margin-right:auto}
.mark-glyph{
  width:26px;height:26px;border-radius:5px;flex:none;
  background:linear-gradient(135deg, var(--teal), var(--copper));
  display:flex;align-items:center;justify-content:center;
  font-family:"Newsreader",Georgia,serif;font-style:italic;font-weight:500;
  font-size:18px;line-height:1;color:var(--film);
  padding-bottom:2px;
}
.mark-name{
  font-family:"Archivo",sans-serif;font-variation-settings:"wdth" 112;
  font-weight:700;font-size:16px;letter-spacing:-.01em;
}
.mark-name span{color:var(--teal)}
.nav{display:flex;gap:22px}
.nav a{
  text-decoration:none;color:var(--ink-2);
  font-family:"Archivo",sans-serif;font-size:13.5px;font-weight:500;
  font-variation-settings:"wdth" 100;
  padding:4px 0;border-bottom:1px solid transparent;
}
.nav a:hover{color:var(--ink);border-bottom-color:var(--copper)}
.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--copper)}
.themebtn{
  border:1px solid var(--line);background:transparent;color:var(--ink-2);
  border-radius:var(--r);height:30px;padding:0 11px;cursor:pointer;
  font-family:"IBM Plex Mono",monospace;font-size:11px;
  letter-spacing:.08em;text-transform:uppercase;font-weight:500;
}
.themebtn:hover{color:var(--ink);border-color:var(--ink-3)}

/* ------------------------------------------------------ home hero panel -- */
.hero{padding:14px 14px 0}
.panel{
  position:relative;background:var(--film);border-radius:var(--r);overflow:hidden;
  min-height:min(80vh,720px);display:flex;flex-direction:column;justify-content:flex-end;
}
.panel canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg, rgba(5,9,10,.96) 0%, rgba(5,9,10,.86) 32%, rgba(5,9,10,.10) 66%, rgba(5,9,10,0) 100%),
    linear-gradient(to top, rgba(5,9,10,.88) 0%, rgba(5,9,10,0) 46%),
    rgba(5,9,10,.24);
}
.hero-wrap{position:relative}
.hero-copy{padding:0 0 34px;max-width:900px}
.eyebrow{color:#7FA8A6;margin-bottom:22px}
.hero h1{
  font-size:clamp(38px,6.1vw,78px);
  color:var(--film-ink);
  font-variation-settings:"wdth" 122;
  font-weight:800;
  letter-spacing:-.03em;
}
.hero h1 em{
  font-family:"Newsreader",Georgia,serif;
  font-style:italic;font-weight:400;
  letter-spacing:-.01em;
  color:#F0C79B;
}
.lede{margin-top:24px;max-width:56ch;font-size:19px;line-height:1.6;color:#B9C7C4}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{
  display:inline-flex;align-items:center;gap:9px;text-decoration:none;
  font-family:"Archivo",sans-serif;font-size:14px;font-weight:600;
  padding:12px 20px;border-radius:var(--r);
}
.btn-a{background:var(--copper);color:#120A04}
.btn-a:hover{background:#D9752F}
.btn-b{border:1px solid rgba(231,237,234,.32);color:#DDE6E3}
.btn-b:hover{border-color:#DDE6E3;background:rgba(231,237,234,.07)}
.btn-light{border:1px solid var(--line);color:var(--ink)}
.btn-light:hover{border-color:var(--ink-3);background:var(--bench-2)}
.hud{position:relative;border-top:1px solid rgba(231,237,234,.14)}
.hud-in{
  display:flex;flex-wrap:wrap;gap:8px 26px;align-items:center;
  padding-top:12px;padding-bottom:12px;color:#87A09D;
}
.hud .dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:7px;vertical-align:1px}
.hud .z{margin-left:auto;font-variant-numeric:tabular-nums;color:#B9C7C4}

/* ----------------------------------------------- interior page masthead -- */
.masthead{padding:clamp(48px,7vw,84px) 0 clamp(34px,4vw,48px);border-bottom:1px solid var(--line)}
.masthead .kicker{color:var(--copper);display:block;margin-bottom:16px}
.masthead h1{font-size:clamp(34px,5.2vw,62px);letter-spacing:-.028em}
.masthead p{margin-top:20px;max-width:62ch;color:var(--ink-2);font-size:19px}

/* ------------------------------------------------------ section scaffold -- */
section{padding:clamp(56px,8vw,104px) 0}
.grid{display:grid;grid-template-columns:minmax(0,224px) minmax(0,1fr);gap:clamp(28px,5vw,64px)}
.rail{position:sticky;top:calc(var(--nav-h) + 28px);align-self:start}
.rail .kicker{color:var(--copper);display:block;margin-bottom:10px}
.rail p{font-size:14.5px;line-height:1.5;color:var(--ink-3);margin-top:12px}
.rail h2{font-size:clamp(26px,2.5vw,32px)}
h2{font-size:clamp(28px,3.6vw,42px);letter-spacing:-.025em}
.section-sub{margin-top:16px;max-width:62ch;color:var(--ink-2);font-size:18px}

/* ------------------------------------------------------------- thesis -- */
.thesis{border-bottom:1px solid var(--line-2)}
.statement{font-size:clamp(22px,2.7vw,31px);line-height:1.4;max-width:26ch;letter-spacing:-.015em}
.thesis .sub{font-size:17.5px;line-height:1.62;color:var(--ink-2);max-width:60ch;margin-top:26px}
.thesis .sub + .sub{margin-top:20px}
.thesis-cols{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,56px)}

/* -------------------------------------------------------- instruments -- */
.instruments{
  display:grid;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
}
.inst{
  background:var(--surface);padding:26px 24px;display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,240px);gap:24px;align-items:start;
}
.inst h3{font-size:19px;font-variation-settings:"wdth" 110;letter-spacing:-.01em}
.inst .vendor{color:var(--ink-3);margin-top:8px}
.inst p{color:var(--ink-2);font-size:16.5px;margin-top:10px;max-width:56ch}
.specs{display:flex;flex-direction:column;gap:7px}
.spec{display:flex;justify-content:space-between;gap:14px;border-bottom:1px dotted var(--line);padding-bottom:6px}
.spec b{color:var(--ink-3);font-weight:500}
.spec span{color:var(--ink);font-variant-numeric:tabular-nums;text-transform:none;letter-spacing:.02em}
.flag{
  display:inline-block;margin-top:14px;padding:4px 9px;border-radius:2px;
  background:var(--copper-soft);color:var(--copper);
}

/* -------------------------------------------------------------- models -- */
.models{display:flex;flex-direction:column}
.model{
  display:grid;grid-template-columns:minmax(0,168px) minmax(0,1fr) minmax(0,210px);
  gap:26px;align-items:baseline;
  padding:26px 0;border-top:1px solid var(--line);
}
.model:last-child{border-bottom:1px solid var(--line)}
.model-name{
  font-family:"Archivo",sans-serif;font-variation-settings:"wdth" 115;
  font-weight:700;font-size:22px;letter-spacing:-.02em;
}
.model-name .tag{display:block;margin-top:7px;color:var(--teal)}
.model p{color:var(--ink-2);font-size:17px}
.doi{
  text-decoration:none;color:var(--ink-3);display:block;text-align:right;overflow-wrap:anywhere;
  text-transform:none;letter-spacing:.02em;
}
.doi:hover{color:var(--copper)}
.doi .venue{
  display:block;color:var(--ink);text-transform:none;letter-spacing:0;
  font-family:"Newsreader",serif;font-size:15px;margin-bottom:5px;
  overflow-wrap:normal;text-wrap:balance;
}

/* ------------------------------------------------------------ projects -- */
.projects{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
}
.proj{background:var(--surface);display:flex;flex-direction:column;transition:background .25s}
.proj:hover{background:var(--bench-2)}
.proj-img{height:104px;background:var(--film);position:relative;overflow:hidden}
.proj-img canvas{width:100%;height:100%;display:block}
.proj-img img{
  width:100%;height:100%;display:block;object-fit:cover;
  /* the source illustrations are far more saturated than the palette;
     damping them keeps the card grid reading as one system */
  filter:saturate(.72) contrast(1.04) brightness(.86);
  transition:filter .3s, transform .5s cubic-bezier(.2,.7,.3,1);
}
.proj:hover .proj-img img{filter:saturate(1) contrast(1) brightness(1);transform:scale(1.03)}
.proj-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.proj h3{font-size:17.5px;font-variation-settings:"wdth" 108;letter-spacing:-.01em;line-height:1.2}
.proj p{color:var(--ink-2);font-size:16px;flex:1}
.lead{
  display:flex;align-items:center;gap:9px;color:var(--ink-3);
  padding-top:12px;border-top:1px solid var(--line-2);
}
.lead b{color:var(--ink);font-weight:500;letter-spacing:.04em}

/* project detail rows (projects page) */
.proj-row{
  display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:clamp(20px,3vw,40px);
  padding:34px 0;border-top:1px solid var(--line);align-items:start;
}
.proj-row:last-child{border-bottom:1px solid var(--line)}
.proj-row .media{background:var(--film);border-radius:var(--r);overflow:hidden;aspect-ratio:16/9}
.proj-row .media img{width:100%;height:100%;display:block;object-fit:cover;filter:saturate(.72) contrast(1.04) brightness(.86);transition:filter .3s}
.proj-row:hover .media img{filter:none}
.media canvas{width:100%;height:100%;display:block}
.proj-row h3{font-size:22px;font-variation-settings:"wdth" 112;letter-spacing:-.018em}
.proj-row p{color:var(--ink-2);margin-top:14px;max-width:62ch}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.pill{
  border:1px solid var(--line);border-radius:100px;padding:5px 12px;
  color:var(--ink-3);background:var(--surface);
}
.pill b{color:var(--ink);font-weight:500}

/* ------------------------------------------------------------- chips -- */
.underway{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  border:1px solid var(--line);border-radius:100px;padding:8px 15px;
  font-size:14.5px;color:var(--ink-2);background:var(--surface);
}
.chip:hover{border-color:var(--teal);color:var(--ink)}

/* ------------------------------------------------------------- people -- */
.people{display:grid;grid-template-columns:repeat(auto-fit,minmax(168px,1fr));gap:22px}
.person{display:flex;flex-direction:column;gap:12px}
.avatar{aspect-ratio:1;background:var(--film);border-radius:var(--r);overflow:hidden}
.avatar canvas{width:100%;height:100%;display:block}
.person h3{font-size:16.5px;font-variation-settings:"wdth" 106;letter-spacing:-.005em}
.person .role{color:var(--ink-3);margin-top:5px}
.person .links{margin-top:8px;display:flex;gap:12px}
.person .links a{color:var(--teal);text-decoration:none;font-size:12px}
.person .links a:hover{text-decoration:underline}

.roster{display:flex;flex-direction:column;gap:0}
.roster-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr) minmax(0,140px);
  gap:22px;padding:18px 0;border-top:1px solid var(--line);align-items:baseline;
}
.roster-row:last-child{border-bottom:1px solid var(--line)}
.roster-row h3{font-size:17px;font-variation-settings:"wdth" 106}
.roster-row p{color:var(--ink-2);font-size:16px}
.roster-row .aff{color:var(--ink-3);text-align:right}

/* ------------------------------------------------------- publications -- */
.pubyear{
  display:flex;align-items:baseline;gap:14px;
  margin:44px 0 4px;padding-bottom:10px;border-bottom:1px solid var(--line);
}
.pubyear h3{font-size:26px;font-variation-settings:"wdth" 118;letter-spacing:-.02em}
.pubyear span{color:var(--ink-3)}
.pub{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,180px);gap:24px;
  padding:20px 0;border-bottom:1px solid var(--line-2);align-items:start;
}
.pub h4{font-size:17.5px;font-variation-settings:"wdth" 104;line-height:1.32;letter-spacing:-.008em}
.pub .authors{color:var(--ink-2);font-size:15.5px;margin-top:7px}
.pub .authors b{color:var(--ink);font-weight:600}
.pub .venue{color:var(--ink-3);margin-top:7px;font-style:italic;font-size:15.5px}
.pub .links{display:flex;flex-direction:column;gap:6px;align-items:flex-end;text-align:right}
.pub .links a{
  color:var(--teal);text-decoration:none;overflow-wrap:anywhere;
  /* a DOI is case-sensitive — never let the mono label style upcase it */
  text-transform:none;letter-spacing:.02em;
}
.pub .links a:hover{color:var(--copper)}

/* --------------------------------------------------------------- news -- */
.newslist{display:flex;flex-direction:column}
.newsitem{
  display:grid;grid-template-columns:minmax(0,150px) minmax(0,1fr);gap:26px;
  padding:26px 0;border-top:1px solid var(--line);align-items:start;
}
.newsitem:last-child{border-bottom:1px solid var(--line)}
.newsitem time{color:var(--ink-3);font-variant-numeric:tabular-nums}
.newsitem h3{font-size:19px;font-variation-settings:"wdth" 108;letter-spacing:-.012em}
.newsitem p{color:var(--ink-2);margin-top:10px;max-width:62ch;font-size:16.5px}
.newsitem .links{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px}
.newsitem .links a{color:var(--teal);text-decoration:none}
.newsitem .links a:hover{color:var(--copper)}

.notice{
  border:1px solid var(--line);border-left:3px solid var(--copper);
  border-radius:var(--r);background:var(--surface);padding:28px 30px;
}
.notice h3{font-size:24px;font-variation-settings:"wdth" 112;letter-spacing:-.02em}
.notice p{color:var(--ink-2);margin-top:14px;max-width:62ch}
.notice .meta{
  display:flex;flex-wrap:wrap;gap:20px;margin-top:20px;
  padding-top:18px;border-top:1px solid var(--line-2);color:var(--ink-3);
}
.notice .meta b{color:var(--copper);font-weight:500}

/* ---------------------------------------------------------- join panel -- */
.join{
  background:var(--film);border-radius:var(--r);padding:clamp(36px,6vw,72px);
  margin:0 14px;color:var(--film-ink);
  box-shadow:inset 0 0 0 1px rgba(231,237,234,.10);
}
.join h2{color:var(--film-ink);font-size:clamp(30px,4.4vw,52px)}
.join p{color:#B9C7C4;max-width:56ch;margin-top:20px;font-size:18.5px}
.join .cta-row{margin-top:32px}

/* contact / openings */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{
  border:1px solid var(--line);border-radius:var(--r);background:var(--surface);
  padding:24px 24px 26px;display:flex;flex-direction:column;gap:10px;
}
.card h3{font-size:18px;font-variation-settings:"wdth" 108}
.card p{color:var(--ink-2);font-size:16px}
.card .who{color:var(--ink-3);margin-top:auto;padding-top:14px;border-top:1px solid var(--line-2)}
.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-list div{border-bottom:1px solid var(--line-2);padding-bottom:14px}
.contact-list .lbl{color:var(--ink-3);display:block;margin-bottom:6px}
.contact-list a{color:var(--teal);text-decoration:none}
.contact-list a:hover{color:var(--copper)}

/* ------------------------------------------------------------- footer -- */
footer{border-top:1px solid var(--line);background:var(--bench-2);padding:52px 0 44px}
.foot-grid{
  display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr));
  gap:36px;padding-bottom:32px;border-bottom:1px solid var(--line-2);
}
.foot-about p{color:var(--ink-2);font-size:16px;margin-top:14px;max-width:44ch}
.foot-col h4{font-size:12px;color:var(--ink-3);margin-bottom:14px;
  font-family:"IBM Plex Mono",monospace;letter-spacing:.1em;text-transform:uppercase;font-weight:500}
.foot-col a{
  display:block;text-decoration:none;color:var(--ink-2);
  font-size:15.5px;padding:5px 0;
}
.foot-col a:hover{color:var(--ink)}
.foot-base{
  display:flex;flex-wrap:wrap;gap:18px;align-items:baseline;
  justify-content:space-between;padding-top:26px;color:var(--ink-3);font-size:14.5px;
}

/* ------------------------------------------------------------ reveals -- */
.rv{
  opacity:0;transform:translateY(14px);
  transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);
}
.rv.in{opacity:1;transform:none}

/* ---------------------------------------------------------- responsive -- */
@media (max-width:860px){
  .grid{grid-template-columns:1fr;gap:24px}
  .rail{position:static}
  .thesis-cols{grid-template-columns:1fr}
  .inst{grid-template-columns:1fr}
  .model{grid-template-columns:1fr;gap:12px}
  .doi{text-align:left}
  .proj-row{grid-template-columns:1fr}
  .roster-row{grid-template-columns:1fr;gap:8px}
  .roster-row .aff{text-align:left}
  .pub{grid-template-columns:1fr;gap:12px}
  .pub .links{align-items:flex-start;text-align:left}
  .newsitem{grid-template-columns:1fr;gap:10px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .topbar-in{height:auto;flex-wrap:wrap;padding:10px 0;gap:10px 18px}
  .nav{width:100%;order:3;gap:16px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
  .nav::-webkit-scrollbar{display:none}
  .nav a{white-space:nowrap}
  .join{margin:0 10px}
  .hero{padding:10px 10px 0}
  .scrim{background:
    linear-gradient(to top, rgba(5,9,10,.94) 30%, rgba(5,9,10,.55) 70%, rgba(5,9,10,.25) 100%),
    rgba(5,9,10,.30)}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}


/* ---------- photographic plates ---------- */
.plate{
  position:relative;border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;background:var(--film);margin-bottom:28px;
}
.plate img{width:100%;display:block}
.plate figcaption{
  display:flex;flex-wrap:wrap;gap:6px 18px;align-items:baseline;
  padding:12px 16px;background:var(--surface);border-top:1px solid var(--line);
  color:var(--ink-3);
}
.plate figcaption b{color:var(--ink);font-weight:500}
.plate-inline{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,320px);gap:24px;align-items:start}
@media (max-width:860px){.plate-inline{grid-template-columns:1fr}}