:root{
    --ink:#17140F;
    --ink-soft:#3A342B;
    --muted:#6E665A;
    --paper:#FBFAF7;
    --paper-2:#F3F0E9;
    --line:#E4DED4;
    --accent:#DA6A1B;
    --accent-deep:#B9540F;
    --amber:#F2A81D;
    --cool:#2E5666;
    --cool-soft:#5A7E8B;
    --maxw:1180px;
    --gutter:clamp(20px,5vw,64px);
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"IBM Plex Sans",system-ui,sans-serif;
    font-size:17px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}

  .wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter);}

  .mono{
    font-family:"IBM Plex Mono",monospace;
    font-size:12px;
    letter-spacing:.16em;
    text-transform:uppercase;
    font-weight:500;
  }

  .display{
    font-family:"Archivo",sans-serif;
    font-weight:800;
    font-stretch:125%;
    letter-spacing:-.01em;
    line-height:1.02;
  }

  /* focus */
  a:focus-visible,button:focus-visible{
    outline:2.5px solid var(--accent);
    outline-offset:3px;
    border-radius:2px;
  }

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:color-mix(in srgb, var(--paper) 88%, transparent);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .nav{
    display:flex;align-items:center;justify-content:space-between;
    height:66px;
  }
  .brand{display:flex;align-items:center;gap:12px;}
  .brand .mark{width:30px;height:30px;flex:none;}
  .brand .name{
    font-family:"Archivo",sans-serif;font-weight:700;font-stretch:112%;
    font-size:18px;letter-spacing:-.01em;
  }
  .brand .name b{color:var(--accent);font-weight:800;}
  .nav-links{display:flex;align-items:center;gap:30px;}
  .nav-links a{
    font-size:14.5px;color:var(--ink-soft);font-weight:500;
    position:relative;padding:4px 0;
  }
  .nav-links a::after{
    content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
    background:var(--accent);transition:right .28s ease;
  }
  .nav-links a:hover::after,.nav-links a[aria-current]::after{right:0;}
  .nav-links a[aria-current]{color:var(--ink);}
  .nav-cta{
    font-size:14px;font-weight:600;
    border:1.5px solid var(--ink);border-radius:100px;
    padding:8px 18px;color:var(--ink);
    transition:background .2s,color .2s;
  }
  .nav-cta:hover{background:var(--ink);color:var(--paper);}
  .menu-btn{display:none;background:none;border:0;cursor:pointer;padding:8px;}
  .menu-btn span{display:block;width:22px;height:2px;background:var(--ink);margin:4px 0;}

  /* ---------- hero ---------- */
  .hero{position:relative;overflow:hidden;}
  .hero-grid{
    display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
    padding-block:clamp(56px,9vw,104px);
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;color:var(--accent-deep);
    margin-bottom:26px;
  }
  .eyebrow::before{content:"";width:26px;height:1.5px;background:var(--accent);}
  .hero h1{
    font-size:clamp(38px,5.4vw,68px);
    margin:0 0 26px;max-width:16ch;
  }
  .hero h1 em{font-style:normal;color:var(--accent);}
  .hero-lead{
    font-size:clamp(17px,1.5vw,19.5px);color:var(--ink-soft);
    max-width:52ch;margin:0 0 34px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
  .btn{
    font-family:"IBM Plex Sans";font-size:15px;font-weight:600;
    padding:13px 26px;border-radius:100px;cursor:pointer;border:1.5px solid transparent;
    transition:transform .15s,background .2s,box-shadow .2s;
    display:inline-flex;align-items:center;gap:9px;
  }
  .btn-primary{background:var(--accent);color:#fff;box-shadow:0 1px 0 var(--accent-deep);}
  .btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);}
  .btn-ghost{border-color:var(--line);color:var(--ink);}
  .btn-ghost:hover{border-color:var(--ink);}
  .btn svg{width:15px;height:15px;}

  /* motif */
  .motif{position:relative;aspect-ratio:4/3;width:100%;}
  .motif svg{width:100%;height:100%;overflow:visible;}

  /* ---------- partners ---------- */
  .partners{border-block:1px solid var(--line);background:var(--paper);}
  .partners .wrap{padding-block:26px;}
  .partners-row{
    display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  }
  .partners .label{color:var(--muted);white-space:nowrap;}
  .partners-logos{display:flex;align-items:center;gap:clamp(20px,3.2vw,40px);flex-wrap:wrap;}
  .uni-logo{height:27px;width:auto;}
  .four-tu{height:19px;width:auto;padding-left:clamp(4px,1.5vw,16px);border-left:1px solid var(--line);}

  /* ---------- section scaffolding ---------- */
  section{padding-block:clamp(56px,8vw,100px);}
  .sec-head{max-width:60ch;margin-bottom:48px;}
  .sec-head .eyebrow{margin-bottom:18px;}
  .sec-head h2{
    font-size:clamp(28px,3.6vw,42px);margin:0 0 16px;line-height:1.06;
  }
  .sec-head p{color:var(--ink-soft);margin:0;font-size:17.5px;}

  /* mission */
  .mission-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
    border:1px solid var(--line);border-radius:14px;overflow:hidden;}
  .pillar{background:var(--paper);padding:34px 30px;}
  .pillar .num{font-family:"IBM Plex Mono";font-size:13px;color:var(--accent);letter-spacing:.1em;}
  .pillar h3{font-family:"Archivo";font-weight:700;font-stretch:110%;font-size:20px;margin:14px 0 10px;}
  .pillar p{margin:0;color:var(--muted);font-size:15px;line-height:1.55;}

  .mission-grid.two-col{grid-template-columns:repeat(2,1fr);}
  @media (max-width:640px){.mission-grid.two-col{grid-template-columns:1fr;}}

  /* people */
  .people-grid{
    display:grid;grid-template-columns:repeat(5,1fr);gap:24px;
  }
  .person{}
  .avatar{
    aspect-ratio:1/1;border-radius:12px;background:var(--paper-2);
    border:1px solid var(--line);margin-bottom:14px;position:relative;overflow:hidden;
  }
  .avatar img{width:100%;height:100%;object-fit:cover;object-position:center 20%;display:block;}
  .person h4{margin:0 0 3px;font-size:16px;font-weight:600;}
  .person .role{color:var(--muted);font-size:13.5px;margin:0;}
  .person .aff{color:var(--accent-deep);font-size:12.5px;margin:6px 0 0;font-family:"IBM Plex Mono";letter-spacing:.02em;}

  /* events */
  .events-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line);}
  .event{
    display:grid;grid-template-columns:150px 1fr auto;gap:28px;align-items:center;
    padding:26px 4px;border-bottom:1px solid var(--line);transition:padding-left .2s,background .2s;
  }
  .event:hover{background:var(--paper-2);padding-left:14px;}
  .event .date{font-family:"IBM Plex Mono";font-size:13px;color:var(--ink);line-height:1.4;}
  .event .date b{display:block;font-size:26px;font-weight:500;color:var(--accent);}
  .event h3{margin:0 0 5px;font-size:19px;font-weight:600;}
  .event p{margin:0;color:var(--muted);font-size:14.5px;}
  .event .tag{
    font-family:"IBM Plex Mono";font-size:11px;letter-spacing:.1em;text-transform:uppercase;
    padding:5px 11px;border-radius:100px;white-space:nowrap;
  }
  .tag.open{background:color-mix(in srgb,var(--accent) 14%,var(--paper));color:var(--accent-deep);}
  .tag.past{background:var(--paper-2);color:var(--muted);}

  /* research */
  .research{background:var(--ink);color:var(--paper);}
  .research .eyebrow{color:var(--amber);}
  .research .eyebrow::before{background:var(--amber);}
  .research-grid{display:grid;grid-template-columns:0.95fr 1.05fr;gap:56px;align-items:center;}
  .research h2{font-size:clamp(26px,3.2vw,38px);margin:0 0 18px;line-height:1.08;}
  .research .lead{color:#C9C2B4;font-size:17px;margin:0 0 28px;}
  .dl{margin-top:2px;}
  .dl svg{width:16px;height:16px;}
  .dl-note{color:#8B8577;font-size:12.5px;margin:14px 0 0;}

  .report{display:flex;justify-content:center;}
  .report-shot{
    position:relative;display:block;width:100%;max-width:520px;
    border-radius:10px;overflow:hidden;background:#1F1B15;
    border:1px solid #33302A;box-shadow:0 26px 60px -26px rgba(0,0,0,.75);
    transform:rotate(-1deg);transition:transform .35s ease,box-shadow .35s ease;
  }
  .report-shot img{width:100%;height:auto;display:block;}
  .report-shot:hover{transform:rotate(0) translateY(-4px);box-shadow:0 34px 74px -24px rgba(0,0,0,.8);}
  .report-badge{
    position:absolute;right:12px;bottom:12px;background:var(--accent);color:#fff;
    font-size:11px;letter-spacing:.08em;padding:5px 11px;border-radius:100px;
  }

  /* join / contact */
  .photo-band{margin:0;}
  .photo-band img{
    width:100%;height:auto;display:block;border-radius:14px;
    aspect-ratio:16/9;object-fit:cover;object-position:center 38%;background:var(--line);
    box-shadow:0 24px 60px -30px rgba(0,0,0,.5);
  }
  .photo-band figcaption{
    margin-top:14px;color:var(--muted);font-size:11.5px;text-transform:uppercase;
    letter-spacing:.12em;text-align:center;
  }
  .join{background:var(--paper-2);}
  .join-inner{
    display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:center;
    border:1px solid var(--line);border-radius:18px;background:var(--paper);
    padding:clamp(32px,4vw,56px);
  }
  .join h2{font-size:clamp(26px,3.4vw,40px);margin:0 0 16px;line-height:1.06;}
  .join p{color:var(--ink-soft);margin:0 0 4px;}
  .contact-actions{display:flex;flex-direction:column;gap:12px;}
  .contact-actions .btn{width:100%;justify-content:center;}
  .join-note{font-size:12.5px;color:var(--muted);margin-top:2px;}

  /* footer */
  .site-footer{background:var(--ink);color:#B7B0A2;padding-block:52px 30px;}
  .footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:38px;border-bottom:1px solid #2C2921;}
  .footer-brand .name{font-family:"Archivo";font-weight:700;font-stretch:112%;color:var(--paper);font-size:19px;margin-bottom:12px;}
  .footer-brand p{font-size:14px;max-width:34ch;margin:0;}
  .footer-col h5{font-family:"IBM Plex Mono";font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#8B8577;margin:0 0 16px;font-weight:500;}
  .footer-col a{display:block;color:#C9C2B4;font-size:14.5px;margin-bottom:10px;}
  .footer-col a:hover{color:var(--amber);}
  .footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding-top:24px;font-size:13px;color:#8B8577;}

  /* motif animation */
  @keyframes flow{to{stroke-dashoffset:-120;}}
  .flux{stroke-dasharray:2.5 120;animation:flow 4.5s linear infinite;}
  @keyframes breathe{0%,100%{opacity:.35;}50%{opacity:.9;}}
  .halo{animation:breathe 5s ease-in-out infinite;}
  .halo:nth-of-type(2){animation-delay:2.4s;}

  @media (max-width:900px){
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .motif{max-width:420px;margin-inline:auto;order:-1;}
    .research-grid,.join-inner{grid-template-columns:1fr;gap:32px;}
    .people-grid{grid-template-columns:repeat(2,1fr);}
    .mission-grid{grid-template-columns:1fr;}
    .nav-links{display:none;}
    .menu-btn{display:block;}
    .event{grid-template-columns:auto 1fr;gap:16px;}
    .event .tag{grid-column:2;justify-self:start;}
    .footer-top{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:520px){
    .people-grid{grid-template-columns:1fr 1fr;}
    .footer-top{grid-template-columns:1fr;}
    .partners-row{flex-direction:column;align-items:flex-start;gap:18px;}
  }

  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;}
  }

  /* ---------- page header (interior pages) ---------- */
  .page-header{border-bottom:1px solid var(--line);padding-block:clamp(48px,7vw,92px) clamp(40px,5vw,60px);}
  .page-header .eyebrow{margin-bottom:18px;}
  .page-header h1{font-size:clamp(34px,4.8vw,58px);margin:0 0 20px;max-width:20ch;line-height:1.03;}
  .page-header p{color:var(--ink-soft);font-size:clamp(17px,1.6vw,19px);max-width:62ch;margin:0;}

  /* section helpers */
  .alt{background:var(--paper-2);}
  .text-link{display:inline-flex;align-items:center;gap:8px;color:var(--accent-deep);
    font-weight:600;font-size:15px;margin-top:22px;}
  .text-link svg{width:15px;height:15px;transition:transform .2s;}
  .text-link:hover svg{transform:translateX(3px);}
  .lead-para{font-size:clamp(17px,1.6vw,19px);color:var(--ink-soft);max-width:64ch;}
  .lead-para + .lead-para{margin-top:18px;}

  /* research directions reuse pillar styles but 4-up */
  .themes{grid-template-columns:repeat(4,1fr);}
  @media (max-width:900px){.themes{grid-template-columns:1fr 1fr;}}
  @media (max-width:520px){.themes{grid-template-columns:1fr;}}

  /* ---------- functional mobile menu ---------- */
  @media (max-width:900px){
    .nav-links{
      display:none;position:absolute;top:66px;left:0;right:0;
      flex-direction:column;align-items:flex-start;gap:4px;
      background:var(--paper);border-bottom:1px solid var(--line);
      padding:14px var(--gutter) 20px;box-shadow:0 20px 40px -28px rgba(0,0,0,.3);
    }
    .site-header.nav-open .nav-links{display:flex;}
    .nav-links a{font-size:16px;padding:8px 0;width:100%;}
    .nav-links a::after{display:none;}
    .site-header{position:relative;}
  }

  /* ---------- event detail pages ---------- */
  .back-link{display:inline-flex;align-items:center;gap:8px;color:var(--muted);
    font-family:"IBM Plex Mono";font-size:12px;letter-spacing:.06em;margin-bottom:22px;}
  .back-link:hover{color:var(--ink);}
  .back-link svg{width:14px;height:14px;}
  .event-meta{list-style:none;padding:0;margin:34px 0 0;border-top:1px solid var(--line);max-width:640px;}
  .event-meta li{display:flex;gap:20px;padding:15px 0;border-bottom:1px solid var(--line);font-size:15.5px;color:var(--ink-soft);}
  .event-meta b{min-width:130px;flex:none;color:var(--muted);font-weight:500;
    font-family:"IBM Plex Mono";font-size:12px;letter-spacing:.08em;text-transform:uppercase;padding-top:2px;}
  .event .arrow{color:var(--muted);}

  /* ---------- workshop detail extras ---------- */
  .sub-h{font-size:clamp(23px,2.8vw,31px);margin:54px 0 22px;line-height:1.1;}
  .callout{background:var(--paper-2);border:1px solid var(--line);border-radius:12px;
    padding:22px 26px;margin:30px 0;font-size:15.5px;color:var(--ink-soft);line-height:1.6;}
  .callout b{color:var(--ink);font-weight:600;}
  .program-wrap{overflow-x:auto;margin-top:6px;}
  .program{width:100%;border-collapse:collapse;font-size:15px;min-width:520px;}
  .program th{text-align:left;font-family:"IBM Plex Mono";font-size:11px;letter-spacing:.1em;
    text-transform:uppercase;color:var(--muted);padding:0 0 14px;border-bottom:1px solid var(--line);}
  .program td{padding:15px 0;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink-soft);}
  .program td.time{font-family:"IBM Plex Mono";font-size:13px;color:var(--accent-deep);
    white-space:nowrap;padding-right:26px;width:120px;}
  .program .spk{display:block;color:var(--muted);font-size:13px;margin-top:4px;}
  .btn-register{margin:8px 0 4px;}

  /* ---------- per-person social links (about) ---------- */
  .person-links{display:flex;gap:9px;margin-top:11px;}
  .person-links a{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:8px;color:var(--muted);transition:border-color .2s,color .2s,background .2s;}
  .person-links a:hover{border-color:var(--ink);color:var(--ink);background:var(--paper-2);}
  .person-links svg{width:16px;height:16px;}