/* ==========================================================================
   OSCAR — Oxford Secure Computer Architecture Research
   Design system inspired by the University of Oxford visual identity
   ========================================================================== */

:root{
  --oxford-blue:#002147;
  --navy-900:#001a38;
  --navy-700:#0b3364;
  --navy-500:#1e4a86;
  --gold:#b9975b;
  --gold-light:#d9c08e;
  --gold-pale:#f1e7d0;
  --oscar-red:#e01e1e;
  --stone:#f6f3ec;
  --stone-dark:#ebe6da;
  --ink:#141a24;
  --ink-soft:#3b4453;
  --muted:#6b7380;
  --line:#dcd7cb;
  --white:#ffffff;

  --serif:"Source Serif 4","Source Serif Pro","Charter","Georgia","Times New Roman",serif;
  --sans:"Inter","Helvetica Neue",Arial,sans-serif;

  --container:1200px;
  --gutter:clamp(20px,4vw,48px);
  --shadow-sm:0 1px 2px rgba(0,33,71,.06),0 2px 8px rgba(0,33,71,.06);
  --shadow-md:0 8px 30px rgba(0,33,71,.12);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);font-size:16.5px;line-height:1.65;letter-spacing:-.002em;color:var(--ink);
  background:var(--white);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--navy-700);text-decoration:none}
a:hover{color:var(--oxford-blue)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.12;margin:0 0 .5em;color:var(--oxford-blue);letter-spacing:-.012em;font-optical-sizing:auto}
h1{font-size:clamp(2.4rem,5vw,4rem)}
h2{font-size:clamp(1.9rem,3.4vw,2.7rem)}
h3{font-size:clamp(1.35rem,2vw,1.6rem)}
h4{font-size:1.15rem}
p{margin:0 0 1.1em}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:820px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Typographic helpers ------------------------------------------------------ */
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;font-family:var(--sans);font-size:.78rem;
  letter-spacing:.22em;text-transform:uppercase;font-weight:600;color:var(--gold);margin-bottom:18px;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}
.eyebrow.center{justify-content:center}
.eyebrow.center::after{content:"";width:34px;height:1px;background:var(--gold)}
.lead{font-family:var(--serif);font-size:1.3rem;line-height:1.55;color:var(--ink-soft);font-weight:400}
.rule{width:64px;height:2px;background:var(--gold);border:0;margin:26px 0}
.rule.center{margin-left:auto;margin-right:auto}
.text-center{text-align:center}
.small{font-size:.9rem;color:var(--muted)}

/* Buttons ------------------------------------------------------------------ */
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border:1.5px solid transparent;
  font-family:var(--sans);font-weight:600;font-size:.95rem;letter-spacing:.04em;text-transform:uppercase;
  border-radius:2px;transition:all .25s var(--ease);cursor:pointer;line-height:1;
}
.btn svg{width:16px;height:16px;transition:transform .25s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--oxford-blue);color:#fff;border-color:var(--oxford-blue)}
.btn-primary:hover{background:var(--navy-700);border-color:var(--navy-700);color:#fff}
.btn-gold{background:var(--gold);color:var(--oxford-blue);border-color:var(--gold)}
.btn-gold:hover{background:var(--gold-light);border-color:var(--gold-light);color:var(--oxford-blue)}
.btn-outline{background:transparent;color:var(--oxford-blue);border-color:var(--oxford-blue)}
.btn-outline:hover{background:var(--oxford-blue);color:#fff}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline-light:hover{background:#fff;color:var(--oxford-blue);border-color:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--oxford-blue);border-bottom:1px solid var(--gold);padding-bottom:2px}
.link-arrow svg{width:14px;height:14px;transition:transform .25s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* Top bar & header --------------------------------------------------------- */
.topbar{background:var(--oxford-blue);color:#cfd8e6;font-size:.8rem;letter-spacing:.06em}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar a{color:#fff;opacity:.85}
.topbar a:hover{opacity:1}
.topbar .left{display:flex;gap:18px;align-items:center;white-space:nowrap}
.topbar .left span{opacity:.75}
.topbar .right{display:flex;gap:22px;white-space:nowrap}
@media (max-width:900px){.topbar .right{display:none}}
@media (max-width:520px){.topbar .left span{display:none}}

.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);transition:box-shadow .3s var(--ease);
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(0,33,71,.08)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:84px;position:relative}
.brand{display:flex;align-items:center;gap:16px}
.brand img{height:44px;width:auto}
.brand .brand-text{display:flex;flex-direction:column;line-height:1.1;border-left:1px solid var(--line);padding-left:16px;white-space:nowrap}
.brand .brand-text strong{font-family:var(--serif);font-size:1rem;color:var(--oxford-blue);font-weight:600;letter-spacing:.01em}
.brand .brand-text span{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:4px}
@media (max-width:1180px){.brand .brand-text strong{font-size:.9rem}}
@media (max-width:560px){.brand .brand-text{display:none}}

.nav{display:flex;align-items:center;gap:6px}
.nav a{
  padding:10px 14px;font-weight:600;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);
  position:relative;border-radius:2px;white-space:nowrap;
}
.nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav a.active{color:var(--oxford-blue)}
.nav .btn{margin-left:12px;padding:12px 20px;font-size:.78rem}
.nav .btn::after{display:none}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:26px;height:2px;background:var(--oxford-blue);margin:6px 0;transition:all .3s var(--ease)}
@media (max-width:960px){
  .nav-toggle{display:block}
  .nav{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;
    padding:12px var(--gutter) 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:all .3s var(--ease);
  }
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--stone-dark)}
  .nav a::after{display:none}
  .nav .btn{margin:16px 0 0;justify-content:center;border-bottom:0}
  .nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
}

/* Hero --------------------------------------------------------------------- */
.hero{
  position:relative;min-height:min(88vh,760px);display:flex;align-items:center;color:#fff;overflow:hidden;
  background:var(--oxford-blue);
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center 40%;transform:scale(1.06);animation:heroZoom 20s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(0,33,71,.93) 0%,rgba(0,33,71,.78) 45%,rgba(0,33,71,.3) 100%),
             linear-gradient(0deg,rgba(0,26,56,.92) 0%,rgba(0,26,56,0) 45%);
}
.hero .container{position:relative;z-index:2;padding-top:96px;padding-bottom:110px}
.hero .eyebrow{color:var(--gold-light)}
.hero .eyebrow::before{background:var(--gold-light)}
.hero h1{color:#fff;max-width:15ch;margin-bottom:22px}
.hero h1 em{font-style:italic;color:var(--gold-light)}
.hero p{max-width:600px;font-size:1.2rem;color:rgba(255,255,255,.86);margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-caption{position:absolute;z-index:2;right:var(--gutter);bottom:22px;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.55)}

/* Affiliations strip -------------------------------------------------------- */
.affil{background:var(--stone);border-bottom:1px solid var(--line)}
.affil .container{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px 40px;padding-top:22px;padding-bottom:22px}
.affil .label{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:600}
.affil ul{display:flex;flex-wrap:wrap;gap:12px 28px;list-style:none;margin:0;padding:0}
.affil li{font-family:var(--serif);font-size:1.02rem;color:var(--oxford-blue);display:flex;align-items:center;gap:10px}
.affil li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold)}

/* Sections ----------------------------------------------------------------- */
.section{padding:clamp(72px,9vw,120px) 0}
.section.tight{padding:clamp(56px,7vw,88px) 0}
.section.stone{background:var(--stone)}
.section.navy{background:var(--oxford-blue);color:#dbe3ef}
.section.navy h2,.section.navy h3{color:#fff}
.section.navy .eyebrow{color:var(--gold-light)}
.section.navy .eyebrow::before,.section.navy .eyebrow::after{background:var(--gold-light)}
.section-head{max-width:760px;margin-bottom:clamp(36px,5vw,64px)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.row{max-width:none;display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.section-head.row > div{max-width:720px}

.two-col{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(40px,6vw,96px);align-items:center}
@media (max-width:900px){.two-col{grid-template-columns:minmax(0,1fr)}}

/* Framed image with gold offset border */
.frame{position:relative;z-index:0}
.frame img{width:100%;height:100%;object-fit:cover;box-shadow:var(--shadow-md)}
.frame::after{content:"";position:absolute;inset:0;transform:translate(16px,16px);border:1.5px solid var(--gold);z-index:-1}
.frame.tall img{aspect-ratio:3/4}
.frame.wide img{aspect-ratio:4/3}

/* Research pillars */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media (max-width:900px){.pillars{grid-template-columns:1fr}}
.pillar{
  background:#fff;border:1px solid var(--line);padding:38px 34px;position:relative;overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.pillar::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--gold);transform:scaleY(0);transform-origin:top;transition:transform .4s var(--ease)}
.pillar:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
.pillar:hover::before{transform:scaleY(1)}
.pillar .icon{width:52px;height:52px;border:1px solid var(--gold);display:grid;place-items:center;margin-bottom:24px;color:var(--oxford-blue)}
.pillar .icon svg{width:26px;height:26px}
.pillar h3{margin-bottom:12px}
.pillar p{color:var(--ink-soft);margin:0;font-size:1rem}
.pillar .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:20px}
.pillar .tags span{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;font-weight:700;color:var(--oxford-blue);background:var(--stone);padding:5px 9px}

/* Stats band */
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14)}
@media (max-width:1000px){.stats{grid-template-columns:repeat(3,1fr)}}
@media (max-width:600px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{padding:40px 24px;text-align:center;border-right:1px solid rgba(255,255,255,.14)}
.stat:last-child{border-right:0}
@media (max-width:1000px){.stat{border-bottom:1px solid rgba(255,255,255,.14)}}
.stat .num{font-family:var(--serif);font-size:clamp(2.6rem,4.5vw,3.6rem);color:#fff;line-height:1;font-weight:500}
.stat .num sup{font-size:.45em;color:var(--gold-light);vertical-align:super;margin-left:2px}
.stat .lbl{font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-light);margin-top:12px;font-weight:600}
.stat .sub{font-size:.85rem;color:rgba(255,255,255,.6);margin-top:6px}

/* Announcements */
.announce-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media (max-width:820px){.announce-grid{grid-template-columns:1fr}}
.announce{
  background:#fff;border:1px solid var(--line);padding:40px;display:flex;flex-direction:column;gap:18px;position:relative;
  transition:box-shadow .3s var(--ease),transform .3s var(--ease);
}
.announce:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.announce .badge{
  align-self:flex-start;background:var(--oxford-blue);color:#fff;font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  padding:7px 12px;font-weight:700;
}
.announce .badge.red{background:var(--oscar-red)}
.announce h3{margin:0}
.announce p{margin:0;color:var(--ink-soft)}
.announce ul{margin:0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:8px}
.announce li{display:flex;gap:12px;align-items:flex-start;color:var(--ink-soft)}
.announce li::before{content:"";flex:none;width:8px;height:8px;margin-top:9px;background:var(--gold)}
.announce .btn{align-self:flex-start;margin-top:auto}

/* Director spotlight */
.director{display:grid;grid-template-columns:380px 1fr;gap:clamp(40px,6vw,88px);align-items:start}
@media (max-width:900px){.director{grid-template-columns:minmax(0,1fr)}.director .frame{max-width:420px}}
.director .role{font-family:var(--serif);font-style:italic;font-size:1.15rem;color:var(--gold);margin-bottom:6px}
.director h2{margin-bottom:6px}
.director .titles{color:var(--ink-soft);margin-bottom:24px;font-size:1.05rem}
.director .titles span{display:block}
.honours{display:grid;grid-template-columns:1fr 1fr;gap:14px 28px;margin:28px 0;padding:0;list-style:none}
@media (max-width:600px){.honours{grid-template-columns:1fr}}
.honours li{display:flex;gap:12px;align-items:flex-start;font-size:.98rem;color:var(--ink-soft)}
.honours li svg{flex:none;width:18px;height:18px;margin-top:4px;color:var(--gold)}

/* Publications list */
.pub-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.pub{
  display:grid;grid-template-columns:150px 1fr auto;gap:24px;align-items:start;padding:26px 0;border-bottom:1px solid var(--line);
}
@media (max-width:760px){.pub{grid-template-columns:1fr;gap:10px}.pub .action{display:none}}
.pub .venue-tag{
  font-family:var(--sans);font-weight:700;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--oxford-blue);
  display:flex;flex-direction:column;gap:6px;
}
.pub .venue-tag .tier{font-size:.66rem;letter-spacing:.14em;color:var(--gold);font-weight:700}
.pub .venue-tag .year{color:var(--muted);font-weight:600}
.pub .title{font-family:var(--serif);font-size:1.28rem;line-height:1.3;color:var(--oxford-blue);margin:0 0 6px;font-weight:500}
.pub .title a{color:inherit;border-bottom:1px solid transparent;transition:border-color .2s}
.pub .title a:hover{border-color:var(--gold)}
.pub .authors{color:var(--ink-soft);font-size:.98rem;margin:0 0 4px}
.pub .authors b{color:var(--oxford-blue);font-weight:600}
.pub .where{color:var(--muted);font-size:.9rem;margin:0}
.pub .award{display:inline-flex;align-items:center;gap:6px;margin-top:8px;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--oscar-red)}
.pub .award svg{width:14px;height:14px}
.pub .action{align-self:center}
.pub .action a{
  width:44px;height:44px;border:1px solid var(--line);display:grid;place-items:center;color:var(--oxford-blue);border-radius:50%;
  transition:all .25s var(--ease);
}
.pub .action a:hover{background:var(--oxford-blue);color:#fff;border-color:var(--oxford-blue)}
.pub .action svg{width:16px;height:16px}

/* Gallery strip */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
@media (max-width:900px){.gallery{grid-template-columns:repeat(2,1fr)}}
.gallery figure{margin:0;position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--oxford-blue)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease),opacity .6s}
.gallery figure:hover img{transform:scale(1.06)}
.gallery figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 18px 16px;color:#fff;font-family:var(--serif);font-size:1.02rem;
  background:linear-gradient(0deg,rgba(0,26,56,.85),rgba(0,26,56,0));
}
.gallery figcaption small{display:block;font-family:var(--sans);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-light);margin-top:2px}

/* CTA band */
.cta-band{position:relative;color:#fff;overflow:hidden;background:var(--oxford-blue)}
.cta-band .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55}
.cta-band::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(0,33,71,.95) 20%,rgba(0,33,71,.45))}
.cta-band .container{position:relative;z-index:2;padding-top:clamp(64px,8vw,110px);padding-bottom:clamp(64px,8vw,110px);display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
@media (max-width:860px){.cta-band .container{grid-template-columns:1fr}}
.cta-band h2{color:#fff;font-size:clamp(2rem,3.6vw,2.9rem)}
.cta-band p{color:rgba(255,255,255,.82);font-size:1.12rem;max-width:560px}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
@media (max-width:860px){.cta-band .actions{justify-content:flex-start}}

/* Page header (inner pages) ------------------------------------------------ */
.page-hero{position:relative;background:var(--oxford-blue);color:#fff;overflow:hidden;min-height:360px;display:flex;align-items:flex-end}
.page-hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.75}
.page-hero::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(0deg,rgba(0,26,56,.96) 8%,rgba(0,33,71,.45) 60%,rgba(0,33,71,.25))}
.page-hero .container{position:relative;z-index:2;padding-top:80px;padding-bottom:56px}
.page-hero h1{color:#fff;margin-bottom:12px}
.page-hero p{color:rgba(255,255,255,.82);font-size:1.15rem;max-width:640px;margin:0}
.page-hero .eyebrow{color:var(--gold-light)}
.page-hero .eyebrow::before{background:var(--gold-light)}
.crumbs{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.6);margin-bottom:22px;display:flex;gap:10px;align-items:center}
.crumbs a{color:rgba(255,255,255,.85)}
.crumbs a:hover{color:#fff}
.crumbs svg{width:10px;height:10px;opacity:.6}

/* Team page ---------------------------------------------------------------- */
.member-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:20px}
.member{
  background:#fff;border:1px solid var(--line);padding:26px 26px 24px;position:relative;display:flex;gap:18px;align-items:flex-start;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.member:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.member .mono{
  flex:none;width:52px;height:52px;border-radius:50%;background:var(--oxford-blue);color:var(--gold-light);display:grid;place-items:center;
  font-family:var(--serif);font-size:1.3rem;font-weight:600;letter-spacing:.02em;
}
.member .name{font-family:var(--serif);font-size:1.22rem;color:var(--oxford-blue);font-weight:500;margin:4px 0 4px;line-height:1.2}
.member .meta{font-size:.9rem;color:var(--muted);margin:0}
.member .meta + .meta{margin-top:2px}
.group-title{display:flex;align-items:center;gap:20px;margin:56px 0 24px}
.group-title.first{margin-top:0}
.group-title h3{margin:0;white-space:nowrap}
.group-title::after{content:"";flex:1;height:1px;background:var(--line)}
.group-title .count{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700}
.join-hint{margin-top:18px;font-size:.95rem;color:var(--muted)}
.join-hint a{font-weight:600;color:var(--oxford-blue);border-bottom:1px solid var(--gold)}

.alumni{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:820px){.alumni{grid-template-columns:1fr}}
.alum{background:#fff;border:1px solid var(--line);padding:30px 32px;border-top:3px solid var(--oxford-blue)}
.alum .year{font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:700}
.alum .name{font-family:var(--serif);font-size:1.35rem;color:var(--oxford-blue);margin:8px 0 6px}
.alum .job{font-size:.95rem;color:var(--ink-soft);margin:0 0 14px}
.alum .job b{font-weight:600;color:var(--oxford-blue)}
.alum .diss{font-family:var(--serif);font-style:italic;font-size:1.05rem;color:var(--ink-soft);margin:0;padding-left:16px;border-left:2px solid var(--gold-pale)}

.team-photo img{width:100%;box-shadow:var(--shadow-md)}
.team-photo figcaption{margin-top:14px;color:var(--muted);font-style:italic;font-family:var(--serif);font-size:1.05rem}

/* Publications page -------------------------------------------------------- */
.pub-toolbar{
  position:sticky;top:84px;z-index:20;background:rgba(246,243,236,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.pub-toolbar .container{display:flex;flex-wrap:wrap;gap:14px 20px;align-items:center;padding-top:16px;padding-bottom:16px}
.search{position:relative;flex:1;min-width:240px}
.search input{
  width:100%;padding:13px 16px 13px 44px;border:1px solid var(--line);background:#fff;font:inherit;font-size:.98rem;border-radius:2px;color:var(--ink);
}
.search input:focus{outline:2px solid var(--gold);outline-offset:0;border-color:var(--gold)}
.search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--muted)}
.select{position:relative}
.select select{
  appearance:none;padding:13px 40px 13px 16px;border:1px solid var(--line);background:#fff;font:inherit;font-size:.95rem;border-radius:2px;color:var(--ink);cursor:pointer;
}
.select::after{content:"";position:absolute;right:16px;top:50%;width:8px;height:8px;border-right:1.5px solid var(--oxford-blue);border-bottom:1.5px solid var(--oxford-blue);transform:translateY(-70%) rotate(45deg);pointer-events:none}
.toggle{display:inline-flex;align-items:center;gap:10px;font-size:.92rem;font-weight:600;color:var(--oxford-blue);cursor:pointer;user-select:none;position:relative}
.toggle input{position:absolute;opacity:0;width:0;height:0}
.toggle .sw{width:42px;height:24px;border-radius:12px;background:#cfd3d9;position:relative;transition:background .25s}
.toggle .sw::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .25s var(--ease);box-shadow:0 1px 3px rgba(0,0,0,.3)}
.toggle input:checked + .sw{background:var(--oxford-blue)}
.toggle input:checked + .sw::after{transform:translateX(18px)}
.pub-count{font-size:.85rem;color:var(--muted);margin-left:auto;white-space:nowrap}
.year-head{display:flex;align-items:baseline;gap:22px;margin:56px 0 8px;scroll-margin-top:170px}
.year-head:first-child{margin-top:0}
.year-head h2{font-size:2.4rem;margin:0;color:var(--oxford-blue)}
.year-head span{font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);font-weight:700}
.year-head::after{content:"";flex:1;height:1px;background:var(--line);align-self:center}
.empty{padding:60px 0;text-align:center;color:var(--muted);font-family:var(--serif);font-size:1.3rem}
.pub-jump{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.pub-jump a{font-size:.8rem;font-weight:700;letter-spacing:.08em;padding:7px 12px;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:2px}
.pub-jump a:hover{border-color:var(--gold-light);background:rgba(255,255,255,.08);color:#fff}
.legend{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:.85rem;color:var(--muted);margin-bottom:40px}
.legend span{display:inline-flex;align-items:center;gap:8px}
.legend i{font-style:normal;font-size:.66rem;letter-spacing:.14em;color:var(--gold);font-weight:700}

.patents{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:820px){.patents{grid-template-columns:1fr}}
.patent{background:#fff;border:1px solid var(--line);padding:24px 26px;display:grid;grid-template-columns:44px 1fr;gap:16px}
.patent .n{font-family:var(--serif);font-size:1.6rem;color:var(--gold);line-height:1;font-weight:500}
.patent .t{font-weight:600;color:var(--oxford-blue);line-height:1.35;margin:2px 0 8px;font-size:1rem}
.patent .a{font-size:.88rem;color:var(--ink-soft);margin:0 0 8px}
.patent .s{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--muted)}
.patent .s.granted{color:#1b7a3d}
.patent .s.granted::before{content:"";width:7px;height:7px;border-radius:50%;background:#1b7a3d}
.patent .s.filed::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}

/* Join page ---------------------------------------------------------------- */
.position{display:grid;grid-template-columns:1fr 1.25fr;gap:clamp(36px,5vw,72px);align-items:start}
@media (max-width:900px){.position{grid-template-columns:1fr}}
.position .aside{position:sticky;top:110px}
@media (max-width:900px){.position .aside{position:static}}
.position .aside .kind{font-size:.75rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:12px}
.position .aside h2{margin-bottom:12px}
.topics{display:grid;gap:12px;margin:26px 0 0;padding:0;list-style:none}
.topics li{background:#fff;border:1px solid var(--line);padding:18px 20px;display:flex;align-items:center;gap:16px;font-family:var(--serif);font-size:1.15rem;color:var(--oxford-blue)}
.topics li .k{flex:none;width:34px;height:34px;border:1px solid var(--gold);display:grid;place-items:center;font-family:var(--sans);font-size:.75rem;font-weight:700;color:var(--gold)}
.steps{list-style:none;margin:0;padding:0;counter-reset:st;display:flex;flex-direction:column}
.steps li{counter-increment:st;display:grid;grid-template-columns:56px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.steps li::before{
  content:counter(st,decimal-leading-zero);font-family:var(--serif);font-size:1.7rem;color:var(--gold);line-height:1;padding-top:2px;
}
.steps li h4{margin:0 0 6px}
.steps li p{margin:0;color:var(--ink-soft);font-size:1rem}
.steps li code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.85rem;white-space:nowrap;background:var(--stone);border:1px solid var(--line);padding:3px 8px;border-radius:3px;color:var(--oxford-blue)}
.note{background:var(--gold-pale);border-left:3px solid var(--gold);padding:18px 22px;font-size:.98rem;color:var(--ink-soft);margin-top:26px}
.contact-card{background:var(--oxford-blue);color:#fff;padding:40px;display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center}
@media (max-width:600px){.contact-card{grid-template-columns:1fr}}
.contact-card img{width:110px;height:110px;border-radius:50%;object-fit:cover;border:3px solid var(--gold)}
.contact-card .n{font-family:var(--serif);font-size:1.6rem;color:#fff;margin:0 0 4px}
.contact-card .r{color:rgba(255,255,255,.75);margin:0 0 12px;font-size:.98rem}
.contact-card a.mail{color:var(--gold-light);font-weight:600;border-bottom:1px solid rgba(217,192,142,.5)}
.contact-card a.mail:hover{color:#fff}

/* Oxford life --------------------------------------------------------------- */
.life{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,5vw,72px);align-items:center}
@media (max-width:900px){.life{grid-template-columns:1fr}}
.life .mosaic{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.life .mosaic img{width:100%;aspect-ratio:1;object-fit:cover;box-shadow:var(--shadow-sm)}
.life .mosaic img:nth-child(1){grid-column:1/-1;aspect-ratio:16/9}
.life ul.facts{list-style:none;padding:0;margin:26px 0 0;display:flex;flex-direction:column;gap:14px}
.life ul.facts li{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:baseline}
.life ul.facts b{font-family:var(--serif);font-size:1.15rem;color:var(--oxford-blue);font-weight:500;white-space:nowrap}
.life ul.facts span{color:var(--ink-soft);font-size:.98rem}

/* Footer ------------------------------------------------------------------- */
.footer{background:var(--navy-900);color:#a9b6c9;font-size:.95rem}
.footer .top{padding:64px 0 48px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer .grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
@media (max-width:900px){.footer .grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer .grid{grid-template-columns:1fr}}
.footer img.logo{height:44px;margin-bottom:18px}
.footer h4{color:#fff;font-family:var(--sans);font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;margin-bottom:18px}
.footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer a{color:#cfd8e6}
.footer a:hover{color:var(--gold-light)}
.footer p{margin:0 0 10px;max-width:380px;line-height:1.6}
.footer .oxford-wordmark{display:flex;align-items:center;gap:14px;margin-top:22px;color:#fff}
.footer .oxford-wordmark .wm{font-family:var(--serif);line-height:1.05;border-left:1px solid rgba(255,255,255,.3);padding-left:14px}
.footer .oxford-wordmark .wm small{display:block;font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:#cfd8e6}
.footer .oxford-wordmark .wm b{font-size:1.35rem;font-weight:600;letter-spacing:.04em}
.footer .bottom{padding:22px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.82rem;color:#7d8ba0}
.footer .bottom a{color:#9fb0c8}

/* Reveal animations --------------------------------------------------------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}.reveal.d4{transition-delay:.4s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-bg{animation:none}
  html{scroll-behavior:auto}
}

/* Print ---------------------------------------------------------------------- */
@media print{
  .topbar,.site-header,.footer,.pub-toolbar,.cta-band,.hero-actions{display:none}
  .page-hero{min-height:auto;color:#000;background:#fff}
  .page-hero h1,.page-hero p{color:#000}
  .pub{break-inside:avoid}
}


/* ---------------------------------------------------------------------------
   Phone refinements
   --------------------------------------------------------------------------- */
@media (max-width:760px){
  .site-header .container{height:68px}
  .brand img{height:38px}
  .nav{top:100%}
  .section{padding:56px 0}
  .section.tight{padding:44px 0}
  .hero{min-height:auto}
  .hero .container{padding-top:72px;padding-bottom:80px}
  .hero h1{font-size:2.35rem}
  .hero p{font-size:1.05rem}
  .hero-caption{display:none}
  .hero-actions .btn{width:100%;justify-content:center}
  .affil .container{justify-content:flex-start}
  .pillar{padding:26px 22px}
  .announce{padding:26px 22px}
  .announce .btn{width:100%;justify-content:center}
  .stats .stat{padding:28px 14px}
  .stats .stat:last-child{grid-column:1/-1;border-right:0}
  .stat .num{font-size:2.4rem}
  .director .frame{max-width:none}
  .director h2{font-size:1.9rem}
  .section-head.row .btn{width:100%;justify-content:center}
  .pub{padding:20px 0}
  .pub .title{font-size:1.15rem}
  .gallery{grid-template-columns:1fr 1fr;gap:6px}
  .gallery figcaption{font-size:.9rem;padding:24px 12px 12px}
  .cta-band .actions{flex-direction:column}
  .cta-band .actions .btn{width:100%;justify-content:center}
  .page-hero{min-height:260px}
  .page-hero .container{padding-top:56px;padding-bottom:36px}
  .page-hero h1{font-size:2.3rem}
  .pub-toolbar{position:static}
  .pub-toolbar .container{gap:10px}
  .search{min-width:0;width:100%}
  .select,.select select{width:100%}
  .pub-count{margin-left:0;width:100%}
  .year-head{scroll-margin-top:80px}
  .year-head h2{font-size:1.8rem}
  .pub-jump a{padding:9px 12px}
  .group-title{flex-wrap:wrap;gap:8px 14px}
  .group-title h3{white-space:normal;font-size:1.3rem}
  .group-title::after{flex-basis:100%;order:3}
  .member{padding:20px}
  .alum{padding:22px}
  .alum .name{font-size:1.2rem}
  .position{grid-template-columns:minmax(0,1fr)}
  .position .aside{position:static}
  .steps li code{white-space:normal;word-break:break-word}
  .steps li{grid-template-columns:44px 1fr;gap:12px}
  .contact-card{padding:26px}
  .footer .top{padding:44px 0 32px}
  .footer ul{gap:4px}
  .footer ul li a{display:inline-block;padding:6px 0}
  .footer .bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .life .mosaic{gap:8px}
}
@media (max-width:420px){
  .hero h1{font-size:2.1rem}
  .stats{grid-template-columns:1fr 1fr}
  .honours{grid-template-columns:1fr}
}
/* larger tap targets everywhere on touch devices */
@media (hover:none){
  .nav a{padding:16px 4px}
  .link-arrow{padding:6px 0}
  .topbar a{padding:8px 0}
}