:root{
  --bg:#f6f7f4;
  --paper:#ffffff;
  --ink:#172027;
  --muted:#68737b;
  --line:#d9dfe0;
  --accent:#1f6f73;
  --accent-soft:#eaf3f1;
  --lime:#d9e59d;
  --max:1180px;
  --header:74px;
  --ease:cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Noto Sans JP','Plus Jakarta Sans',Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit}

/* Header — same visual language as the top page */
.hud-top{
  position:sticky;
  top:0;
  z-index:100;
  min-height:var(--header);
  display:flex;
  align-items:center;
  gap:28px;
  padding:0 max(28px,calc((100vw - var(--max))/2));
  background:rgba(246,247,244,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.hud-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  white-space:nowrap;
}
.status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
}
.hud-nav{
  margin-left:auto;
  display:flex;
  gap:24px;
}
.hud-nav a{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
}
.hud-nav a:hover,
.hud-nav a[aria-current="page"]{color:var(--accent)}
.menu-toggle,.mobile-nav{display:none}

/* Page hero */
.page-hero{
  padding:70px 32px 46px;
  background:linear-gradient(135deg,#0b1821 0%,#102a38 58%,#143747 100%);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 95%);
}
.page-hero-inner{
  position:relative;
  max-width:var(--max);
  margin:0 auto;
}
.page-code{
  margin:0 0 13px;
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:11px;
  font-weight:700;
  letter-spacing:.09em;
  color:#9dc9da;
}
.page-hero h1{
  margin:0;
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:clamp(46px,6.2vw,78px);
  line-height:1;
  letter-spacing:-.045em;
}
.page-intro{
  margin:24px 0 0;
  max-width:760px;
  color:#d9e5e9;
  font-size:16px;
  line-height:1.9;
}

/* Shared content */
.page-main{
  max-width:var(--max);
  margin:0 auto;
  padding:58px 32px 78px;
}
.section-tag{
  display:inline-block;
  margin:0 0 20px;
  padding:4px 9px;
  background:var(--lime);
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
}

/* Events */
.event-card{
  background:var(--paper);
  border:1px solid var(--line);
  padding:clamp(24px,4vw,42px);
}
.event-topline{
  display:grid;
  grid-template-columns:1fr auto;
  gap:24px;
  align-items:start;
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
}
.event-number{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--accent);
}
.event-card h2{
  margin:4px 0 0;
  max-width:800px;
  font-family:'Plus Jakarta Sans','Noto Sans JP',sans-serif;
  font-size:clamp(26px,3vw,40px);
  line-height:1.2;
  letter-spacing:-.025em;
}
.event-lead{
  margin:26px 0 24px;
  font-family:'Plus Jakarta Sans','Noto Sans JP',sans-serif;
  font-size:clamp(19px,2vw,25px);
  font-weight:600;
  line-height:1.5;
}
.event-meta-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  margin:0 0 30px;
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--line);
}
.event-meta-item{
  padding:15px 18px 16px 0;
  border-right:1px solid var(--line);
}
.event-meta-item + .event-meta-item{padding-left:18px}
.event-meta-item:last-child{border-right:0}
.event-meta-label{
  display:block;
  margin-bottom:4px;
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:10px;
  font-weight:700;
  letter-spacing:.09em;
  color:var(--accent);
}
.event-meta-value{font-size:14px;line-height:1.6}
.event-copy{
  max-width:860px;
  color:#47545b;
}
.event-copy h3{
  margin:30px 0 10px;
  font-size:18px;
  color:var(--ink);
}
.event-copy ul{margin:0;padding-left:1.25em}
.event-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.button-primary,
.button-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:9px 16px;
  border:1px solid var(--ink);
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
}
.button-primary{background:var(--ink);color:#fff}
.button-primary:hover{background:var(--accent);border-color:var(--accent)}
.button-secondary:hover{background:var(--accent-soft)}
.contact-box{
  margin-top:28px;
  padding:18px 20px;
  background:var(--accent-soft);
  font-size:14px;
}
.contact-box strong{color:var(--accent)}
.flyer-section{
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.flyer-heading{
  margin:0 0 16px;
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:14px;
  letter-spacing:.04em;
}
.flyer-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.flyer-grid a{
  display:block;
  background:#fff;
  border:1px solid var(--line);
  padding:10px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.flyer-grid a:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 28px rgba(23,32,39,.07);
}
.flyer-grid img{
  width:100%;
  height:auto;
}

/* Publications */
.publications-shell{
  display:grid;
  grid-template-columns:minmax(150px,.45fr) minmax(0,1.55fr);
  gap:clamp(30px,6vw,80px);
  align-items:start;
}
.publications-content{
  background:var(--paper);
  border:1px solid var(--line);
  padding:clamp(26px,4vw,42px);
}
.empty-state{
  padding:4px 0 10px;
}
.empty-state h2{
  margin:0 0 14px;
  font-family:'Plus Jakarta Sans','Noto Sans JP',sans-serif;
  font-size:clamp(26px,3vw,38px);
  line-height:1.25;
  letter-spacing:-.025em;
}
.empty-state p{
  margin:0;
  max-width:700px;
  color:#536068;
}
.empty-state p+p{margin-top:8px}
.empty-rule{
  width:52px;
  height:2px;
  margin:26px 0 0;
  background:var(--accent);
}

/* Footer */
.footer-main{
  background:#172027;
  color:#f7f8f6;
  padding:38px max(28px,calc((100vw - var(--max))/2)) 48px;
  display:grid;
  grid-template-columns:1fr auto;
  gap:24px;
}
.footer-main strong{font-size:15px;letter-spacing:.06em}
.footer-main p{margin:4px 0 0;font-size:13px;color:#aeb8bb}
.footer-links{display:flex;gap:20px;font-size:13px}
.footer-links a:hover{color:#fff}

/* Mobile */
@media(max-width:900px){
  .hud-top{padding:0 22px}
  .hud-nav{display:none}
  .menu-toggle{
    display:block;
    margin-left:auto;
    border:0;
    background:none;
    font-family:'Plus Jakarta Sans',sans-serif;
    font-size:11px;
    font-weight:700;
  }
  .mobile-nav{
    position:absolute;
    top:var(--header);
    left:0;right:0;
    display:none;
    grid-template-columns:1fr 1fr;
    gap:12px;
    padding:18px 22px;
    background:var(--paper);
    border-bottom:1px solid var(--line);
  }
  .mobile-nav.open{display:grid}
  .mobile-nav a{font-size:12px;font-weight:700}
  .event-meta-grid{grid-template-columns:1fr}
  .event-meta-item,
  .event-meta-item + .event-meta-item{
    padding:12px 0;
    border-right:0;
    border-bottom:1px solid var(--line);
  }
  .event-meta-item:last-child{border-bottom:0}
}
@media(max-width:680px){
  body{font-size:16px}
  .page-hero{padding:52px 20px 38px}
  .page-main{padding:44px 20px 58px}
  .event-topline{grid-template-columns:1fr}
  .event-number{order:-1}
  .flyer-grid{grid-template-columns:1fr}
  .publications-shell{grid-template-columns:1fr;gap:18px}
  .footer-main{grid-template-columns:1fr;padding-left:20px;padding-right:20px}
  .footer-links{flex-wrap:wrap}
}

/* =========================================================
   PROGRAM LOGOS — shared across all pages
   ========================================================= */
.program-logo-bar{
  position:relative;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.program-logo-inner{
  width:min(var(--max),calc(100% - 56px));
  min-height:68px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:24px;
}
.program-logo{
  display:flex;
  align-items:center;
  flex:0 1 auto;
}
.program-logo img{
  display:block;
  width:auto;
  max-width:100%;
  object-fit:contain;
}
.program-logo-aspire img{
  height:38px;
}
.program-logo-ukri img{
  height:38px;
}
.program-logo-divider{
  width:1px;
  height:34px;
  flex:0 0 1px;
  background:var(--line);
}

@media(max-width:760px){
  .program-logo-inner{
    width:calc(100% - 40px);
    min-height:58px;
    gap:16px;
  }
  .program-logo-aspire{flex:1.35}
  .program-logo-ukri{flex:1}
  .program-logo-aspire img,
  .program-logo-ukri img{
    width:100%;
    height:auto;
    max-height:30px;
  }
  .program-logo-divider{
    height:28px;
  }
}

@media(max-width:480px){
  .program-logo-inner{
    width:calc(100% - 32px);
    min-height:54px;
    gap:12px;
  }
  .program-logo-aspire img,
  .program-logo-ukri img{
    max-height:26px;
  }
}


/* =========================================================
   MOBILE OPTIMIZATION — final overrides
   ========================================================= */
@media(max-width:900px){
  .hud-top{
    min-height:68px;
    padding:0 18px;
    gap:16px;
  }

  .hud-brand{
    font-size:12px;
    letter-spacing:.06em;
    max-width:calc(100% - 76px);
    overflow:hidden;
    text-overflow:ellipsis;
  }

  .menu-toggle{
    padding:10px 0;
    font-size:12px;
    letter-spacing:.08em;
  }

  .mobile-nav{
    top:68px;
    grid-template-columns:1fr 1fr;
    gap:0;
    padding:8px 18px 14px;
    box-shadow:0 12px 24px rgba(23,32,39,.08);
  }

  .mobile-nav a{
    padding:12px 8px;
    border-bottom:1px solid var(--line);
    font-size:12px;
    line-height:1.35;
  }

  .mobile-nav a:nth-last-child(-n+2){
    border-bottom:0;
  }

  .page-hero{
    padding-top:52px;
  }

  .page-main{
    padding-left:22px;
    padding-right:22px;
  }
}

@media(max-width:680px){
  .page-hero{
    padding:44px 20px 34px;
  }

  .page-hero h1{
    font-size:clamp(40px,13vw,58px);
  }

  .page-intro{
    margin-top:18px;
    font-size:15px;
    line-height:1.75;
  }

  .page-main{
    padding:38px 20px 52px;
  }

  .event-card{
    padding:22px 18px;
  }

  .event-topline{
    gap:10px;
    padding-bottom:18px;
  }

  .event-card h2{
    font-size:26px;
  }

  .event-lead{
    margin:22px 0 20px;
    font-size:19px;
  }

  .event-meta-grid{
    margin-bottom:24px;
  }

  .event-copy{
    font-size:15px;
  }

  .event-actions{
    flex-direction:column;
  }

  .button-primary,
  .button-secondary{
    width:100%;
    min-height:46px;
  }

  .contact-box{
    padding:16px;
    overflow-wrap:anywhere;
  }

  .publications-content{
    padding:24px 20px;
  }

  .footer-main.footer-links-only{
    padding:26px 20px 30px;
  }

  .footer-links.footer-links-large{
    flex-direction:column;
    align-items:center;
    gap:10px;
    text-align:center;
  }

  .footer-links.footer-links-large a{
    font-size:16px;
    line-height:1.45;
  }
}

@media(max-width:480px){
  .hud-brand{
    font-size:11px;
  }

  .mobile-nav{
    grid-template-columns:1fr;
    padding:6px 16px 12px;
  }

  .mobile-nav a,
  .mobile-nav a:nth-last-child(-n+2){
    padding:11px 6px;
    border-bottom:1px solid var(--line);
  }

  .mobile-nav a:last-child{
    border-bottom:0;
  }

  .program-logo-inner{
    width:calc(100% - 28px);
    gap:10px;
  }

  .program-logo-aspire img,
  .program-logo-ukri img{
    max-height:24px;
  }
}

/* MOBILE POLISH — 2026-09-18 */
@media(max-width:680px){
  body{overflow-x:hidden;font-size:16px}
  .mobile-nav{max-height:calc(100vh - 68px);overflow-y:auto}
  .publication-year-heading{gap:10px;align-items:flex-end}
  .publication-category{overflow:hidden}
  .publication-entry,.publication-title,.publication-authors,.publication-journal{overflow-wrap:anywhere}
}
@media(max-width:480px){
  .mobile-nav{grid-template-columns:1fr;padding:6px 16px 12px}
  .mobile-nav a{padding:11px 6px}
  .page-main{padding-left:16px;padding-right:16px}
  .publication-item{padding:18px 16px}
}


/* =========================================================
   CSS-ONLY MOBILE MENU — no JavaScript required
   ========================================================= */
.menu-check{
  position:absolute;
  inline-size:1px;
  block-size:1px;
  opacity:0;
  pointer-events:none;
}

.menu-check:focus-visible + .menu-toggle{
  outline:2px solid var(--accent);
  outline-offset:4px;
}

@media(max-width:900px){
  .menu-toggle{
    cursor:pointer;
    user-select:none;
  }

  .menu-check:checked ~ .mobile-nav{
    display:grid;
  }

  .menu-check:checked + .menu-toggle{
    color:var(--accent);
  }
}


/* Translucent mobile menu */
@media(max-width:900px){
  .mobile-nav{
    background:rgba(246,247,244,.82);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
  }
}