:root{
    --paper:#F2EEE4;
    --paper-2:#E8E1D2;
    --ink:#16211D;
    --jade:#0C5049;
    --jade-deep:#063733;
    --clay:#D6552E;
    --clay-soft:#E07A52;
    --mint:#C6DCCF;
    --muted:#566660;
    --line:rgba(22,33,29,.14);
    --maxw:1180px;
    --ease:cubic-bezier(.2,.7,.2,1);
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    background:var(--paper);
    color:var(--ink);
    font-family:"Hanken Grotesk",system-ui,sans-serif;
    font-size:18px;line-height:1.55;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  /* subtle paper grain */
  body::before{
    content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.04;
    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'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;position:relative;z-index:1}
  a{color:inherit;text-decoration:none}
  .mono{font-family:"JetBrains Mono",monospace;font-weight:400}
  .serif{font-family:"Fraunces",Georgia,serif}
  .eyebrow{
    font-family:"JetBrains Mono",monospace;font-size:12px;letter-spacing:.22em;
    text-transform:uppercase;color:var(--jade);display:inline-flex;align-items:center;gap:10px;
  }
  .eyebrow::before{content:"";width:26px;height:1px;background:var(--clay)}

  /* ---------- NAV ---------- */
  header{position:fixed;top:0;left:0;right:0;z-index:50;transition:.4s var(--ease)}
  header.scrolled{background:rgba(242,238,228,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
  nav{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;max-width:var(--maxw);margin:0 auto}
  .brand{display:flex;align-items:baseline;gap:11px;font-weight:600}
  .mark{
    font-family:"Fraunces",serif;font-size:30px;font-weight:500;line-height:1;
    color:var(--jade);letter-spacing:-.01em;
  }
  .mark sub{font-size:.52em;color:var(--clay);font-style:italic;vertical-align:baseline}
  .brand .name{font-size:15px;letter-spacing:.02em}
  .navlinks{display:flex;gap:34px;align-items:center}
  .navlinks a{font-size:14px;color:var(--muted);transition:color .25s;position:relative}
  .navlinks a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:1px;background:var(--jade);transition:width .3s var(--ease)}
  .navlinks a:not(.btn):hover{color:var(--ink)}
  .navlinks a:not(.btn):hover::after{width:100%}
  .btn{
    background:var(--ink);color:var(--paper);padding:11px 20px;border-radius:100px;
    font-size:14px;font-weight:500;transition:.3s var(--ease);border:1px solid var(--ink);
  }
  .btn:hover{background:transparent;color:var(--ink)}
  .menu-btn{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px}
  .menu-btn span{width:24px;height:2px;background:var(--ink);transition:.3s}

  /* ---------- HERO ---------- */
  .hero{position:relative;padding:190px 0 110px;overflow:hidden}
  .hero .mesh{position:absolute;inset:0;z-index:0;pointer-events:none}
  .mesh .blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5}
  .b1{width:520px;height:520px;background:radial-gradient(circle,#7fb8ac,transparent 70%);top:-120px;right:-80px}
  .b2{width:430px;height:430px;background:radial-gradient(circle,#f0a583,transparent 70%);bottom:-160px;left:-120px;opacity:.4}
  .hero-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:50px;align-items:center;position:relative;z-index:1}
  h1{
    font-family:"Fraunces",serif;font-weight:340;font-size:clamp(2.7rem,6.2vw,5rem);
    line-height:1.02;letter-spacing:-.022em;margin:26px 0 0;
  }
  h1 em{font-style:italic;color:var(--jade)}
  h1 .clay{color:var(--clay)}
  .hero p.lead{font-size:1.18rem;color:var(--muted);max-width:46ch;margin-top:28px}
  .hero-cta{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap}
  .ghost{padding:12px 22px;border:1px solid var(--line);border-radius:100px;font-size:14px;font-weight:500;transition:.3s var(--ease)}
  .ghost:hover{border-color:var(--jade);color:var(--jade);transform:translateY(-2px)}

  /* hero side card — the πtx explainer */
  .glyph{
    position:relative;background:var(--jade);color:var(--paper);border-radius:20px;
    padding:38px 34px;overflow:hidden;box-shadow:0 30px 60px -30px rgba(6,55,51,.6);
  }
  .glyph .big{font-family:"Fraunces",serif;font-size:6.5rem;line-height:.9;letter-spacing:-.03em}
  .glyph .big sub{font-size:.4em;color:var(--clay-soft);font-style:italic}
  .glyph hr{border:0;border-top:1px solid rgba(255,255,255,.18);margin:24px 0}
  .glyph .row{display:flex;gap:14px;font-size:13.5px;line-height:1.5;margin-bottom:12px}
  .glyph .row b{color:var(--mint);font-family:"JetBrains Mono",monospace;font-weight:500;min-width:34px}
  .glyph .row span{color:rgba(242,238,228,.82)}
  .curve{position:absolute;right:-30px;bottom:-30px;width:170px;opacity:.5}
  .curve path{stroke:var(--clay-soft);stroke-width:2;fill:none;stroke-dasharray:600;stroke-dashoffset:600;animation:draw 2.6s var(--ease) .6s forwards}
  @keyframes draw{to{stroke-dashoffset:0}}

  /* marquee strip */
  .strip{border-block:1px solid var(--line);background:var(--paper-2);overflow:hidden;white-space:nowrap}
  .strip .track{display:inline-flex;gap:54px;padding:16px 0;animation:scroll 32s linear infinite}
  .strip span{font-family:"JetBrains Mono",monospace;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);display:inline-flex;gap:54px;align-items:center}
  .strip span::after{content:"✳";color:var(--clay)}
  @keyframes scroll{to{transform:translateX(-50%)}}

  /* ---------- SECTION SHELL ---------- */
  section{padding:110px 0;position:relative}
  .sec-head{max-width:62ch;margin-bottom:64px}
  .sec-head h2{font-family:"Fraunces",serif;font-weight:360;font-size:clamp(2rem,4.2vw,3.1rem);line-height:1.06;letter-spacing:-.02em;margin-top:18px}
  .sec-head p{color:var(--muted);margin-top:18px;font-size:1.08rem}

  /* approach pillars */
  .pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
  .pillar{background:var(--paper);padding:40px 34px;transition:.35s var(--ease)}
  .pillar:hover{background:var(--paper-2)}
  .pillar .num{font-family:"JetBrains Mono",monospace;font-size:13px;color:var(--clay)}
  .pillar h3{font-family:"Fraunces",serif;font-weight:420;font-size:1.5rem;margin:16px 0 12px;letter-spacing:-.01em}
  .pillar p{font-size:.97rem;color:var(--muted)}

  /* platform list */
  .platform{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
  .cap{
    border:1px solid var(--line);border-radius:18px;padding:36px;background:var(--paper);
    position:relative;overflow:hidden;transition:.4s var(--ease);
  }
  .cap:hover{transform:translateY(-4px);box-shadow:0 24px 50px -28px rgba(12,80,73,.4);border-color:transparent}
  .cap .ico{width:46px;height:46px;border-radius:12px;background:var(--mint);display:grid;place-items:center;margin-bottom:22px}
  .cap .ico svg{width:24px;height:24px;stroke:var(--jade);fill:none;stroke-width:1.6}
  .cap h3{font-family:"Fraunces",serif;font-weight:440;font-size:1.42rem;letter-spacing:-.01em;margin-bottom:10px}
  .cap p{color:var(--muted);font-size:1rem}

  /* ---------- GLOBAL (dark) ---------- */
  .global{background:var(--ink);color:var(--paper);border-radius:36px;margin:0 28px;padding:96px 0}
  .global .wrap{padding:0 56px}
  .global .eyebrow{color:var(--mint)}
  .global .eyebrow::before{background:var(--clay-soft)}
  .global h2{font-family:"Fraunces",serif;font-weight:340;font-size:clamp(2rem,4.4vw,3.2rem);letter-spacing:-.02em;margin-top:18px;max-width:18ch}
  .global .intro{color:rgba(242,238,228,.7);max-width:52ch;margin-top:18px}
  .offices{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:60px}
  .office{
    border:1px solid rgba(242,238,228,.16);border-radius:20px;padding:30px 28px;
    position:relative;overflow:hidden;transition:.4s var(--ease);background:rgba(255,255,255,.015);
  }
  .office:hover{border-color:var(--clay-soft);background:rgba(255,255,255,.04)}
  .office .tag{font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--clay-soft)}
  .office h3{font-family:"Fraunces",serif;font-weight:420;font-size:1.7rem;margin:14px 0 4px;letter-spacing:-.01em}
  .office .country{color:rgba(242,238,228,.6);font-size:.95rem}
  .office .role{font-size:.95rem;color:rgba(242,238,228,.82);margin:18px 0;line-height:1.5}
  .office .meta{display:flex;justify-content:space-between;align-items:flex-end;border-top:1px solid rgba(242,238,228,.14);padding-top:16px;margin-top:auto}
  .office .coord{font-family:"JetBrains Mono",monospace;font-size:11.5px;color:rgba(242,238,228,.5);line-height:1.7}
  .office .clock{text-align:right}
  .office .clock .t{font-family:"JetBrains Mono",monospace;font-size:1.25rem;color:var(--mint)}
  .office .clock .l{font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(242,238,228,.45)}

  /* mission */
  .mission-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:center}
  .mission-grid .big-q{font-family:"Fraunces",serif;font-weight:330;font-style:italic;font-size:clamp(1.8rem,3.6vw,2.7rem);line-height:1.2;letter-spacing:-.015em}
  .mission-grid .big-q .clay{color:var(--clay)}
  .mission-grid .body p{color:var(--muted);margin-bottom:18px}
  .mission-grid .body p:last-child{margin-bottom:0}

  /* ---------- TEAM ---------- */
  .team-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .person{
    border:1px solid var(--line);border-radius:18px;padding:34px;background:var(--paper);
    display:flex;gap:24px;align-items:flex-start;transition:.4s var(--ease);position:relative;overflow:hidden;
  }
  .person:hover{transform:translateY(-4px);box-shadow:0 24px 50px -28px rgba(12,80,73,.4);border-color:transparent}
  .avatar{
    flex:0 0 64px;width:64px;height:64px;border-radius:50%;display:grid;place-items:center;
    font-family:"Fraunces",serif;font-size:1.5rem;color:var(--paper);background:var(--jade);letter-spacing:-.02em;
    position:relative;overflow:hidden;
  }
  .avatar.clay{background:var(--clay)}
  .avatar.deep{background:var(--jade-deep)}
  .avatar.ink{background:var(--ink)}
  /* headshot photo sits on top of the initials; if it fails to load it hides itself, revealing initials */
  .avatar img{
    position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:50%;
    background:var(--paper-2);
  }
  .avatar img:not([src]),.avatar img[src=""]{display:none}
  .person .info{flex:1;min-width:0}
  .person h3{font-family:"Fraunces",serif;font-weight:440;font-size:1.4rem;letter-spacing:-.01em;line-height:1.1}
  .person .role{font-family:"JetBrains Mono",monospace;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--clay);margin:8px 0 12px}
  .person .bio{font-size:.95rem;color:var(--muted);line-height:1.5}
  .person .li{
    display:inline-flex;align-items:center;gap:7px;margin-top:16px;font-size:13px;font-weight:500;
    color:var(--jade);transition:.25s;
  }
  .person .li:hover{color:var(--clay)}
  .person .li svg{width:15px;height:15px;fill:currentColor}

  /* ---------- CONTACT ---------- */
  .contact{text-align:center}
  .contact h2{font-family:"Fraunces",serif;font-weight:330;font-size:clamp(2.4rem,6vw,4.4rem);letter-spacing:-.022em;line-height:1.04;max-width:16ch;margin:22px auto 0}
  .contact h2 em{font-style:italic;color:var(--jade)}
  .contact .mailbtn{
    display:inline-flex;align-items:center;gap:12px;margin-top:40px;background:var(--clay);color:var(--paper);
    padding:16px 30px;border-radius:100px;font-size:1.05rem;font-weight:500;transition:.35s var(--ease);
    border:1px solid var(--clay);
  }
  .contact .mailbtn:hover{background:transparent;color:var(--clay);transform:translateY(-3px)}
  .contact .mailbtn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8}

  /* footer */
  footer{border-top:1px solid var(--line);padding:54px 0 40px;margin-top:40px}
  .foot-grid{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap}
  .foot-grid .col h4{font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
  .foot-grid .col p,.foot-grid .col a{display:block;font-size:14px;color:var(--muted);margin-bottom:7px}
  .foot-grid .col a:hover{color:var(--jade)}
  .foot-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:48px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);flex-wrap:wrap;gap:12px}

  /* reveal animation */
  .reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
  .reveal.in{opacity:1;transform:none}
  [data-d="1"]{transition-delay:.08s}[data-d="2"]{transition-delay:.16s}
  [data-d="3"]{transition-delay:.24s}[data-d="4"]{transition-delay:.32s}

  /* ---------- RESPONSIVE ---------- */
  @media(max-width:900px){
    .hero-grid,.mission-grid{grid-template-columns:1fr;gap:40px}
    .pillars,.platform,.offices{grid-template-columns:1fr}
    .team-grid{grid-template-columns:1fr}
    .glyph{max-width:380px}
    .navlinks{position:fixed;inset:0 0 0 auto;width:78%;max-width:320px;background:var(--paper);
      flex-direction:column;align-items:flex-start;justify-content:center;padding:40px;gap:24px;
      transform:translateX(100%);transition:.4s var(--ease);box-shadow:-20px 0 60px -30px rgba(0,0,0,.4)}
    .navlinks.open{transform:none}
    .menu-btn{display:flex}
    .global{margin:0 14px;padding:64px 0}
    .global .wrap{padding:0 26px}
    section{padding:80px 0}
  }

  /* ---------- INNER PAGE SHARED ---------- */
  .page-hero{padding:170px 0 60px;position:relative;overflow:hidden}
  .page-hero .mesh{position:absolute;inset:0;z-index:0;pointer-events:none}
  .page-hero h1{
    font-family:"Fraunces",serif;font-weight:340;font-size:clamp(2.4rem,5.4vw,4.2rem);
    line-height:1.04;letter-spacing:-.022em;margin-top:22px;max-width:18ch;
  }
  .page-hero h1 em{font-style:italic;color:var(--jade)}
  .page-hero p.lead{font-size:1.15rem;color:var(--muted);max-width:54ch;margin-top:24px}
  .navlinks a.active{color:var(--ink)}
  .navlinks a.active::after{width:100%}