:root{
    --ink:#14161B;
    --ink-soft:#1D2028;
    --ink-line: rgba(236,232,220,0.16);
    --vellum:#ECE8DC;
    --paper-card:#E2DDCB;
    --blueprint:#2657A6;
    --blueprint-light:#7DA1DE;
    --redline:#B93A2C;
    --redline-light:#E2685A;
    --graphite:#6B6D6F;
    --body-on-light:#34363B;
    --body-on-dark:#C7C9CE;
    --line: rgba(20,22,27,0.16);
    --radius-sm: 2px;
    --maxw: 1180px;
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  @media (prefers-reduced-motion: reduce){
    html{ scroll-behavior:auto; }
    *,*::before,*::after{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
  }

  body{
    margin:0;
    background:var(--vellum);
    color:var(--body-on-light);
    font-family:'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size:16px;
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
  }

  .mono{ font-family:'IBM Plex Mono', ui-monospace, SFMono-Regular, monospace; }

  a{ color:inherit; }
  img{ max-width:100%; display:block; }

  :focus-visible{
    outline:2px solid var(--blueprint);
    outline-offset:3px;
  }

  .wrap{
    max-width:var(--maxw);
    margin:0 auto;
    padding:0 28px;
  }

  /* ---------- crosshair signature mark ---------- */
  .xhair{
    display:inline-block;
    width:14px; height:14px;
    position:relative;
    flex-shrink:0;
  }
  .xhair::before,.xhair::after{
    content:"";
    position:absolute;
    background:currentColor;
  }
  .xhair::before{ left:50%; top:0; width:1px; height:100%; transform:translateX(-50%); }
  .xhair::after{ top:50%; left:0; height:1px; width:100%; transform:translateY(-50%); }
  .xhair-ring{
    position:absolute; inset:2px;
    border:1px solid currentColor;
    border-radius:50%;
  }

  /* ---------- header / title block ---------- */
  header.titleblock{
    position:fixed; top:0; left:0; right:0; z-index:50;
    background:rgba(20,22,27,0.92);
    backdrop-filter:blur(6px);
    border-bottom:1px solid var(--ink-line);
  }
  .tb-row{
    display:flex; align-items:center; justify-content:space-between;
    height:64px;
    color:var(--vellum);
  }
  .brand{
    display:flex; align-items:center; gap:10px;
    text-decoration:none;
    color:var(--vellum);
  }
  .brand .xhair{ color:var(--redline-light); }
  .brand-text{
    font-family:'IBM Plex Mono', monospace;
    font-size:13px;
    letter-spacing:0.09em;
    text-transform:uppercase;
  }
  .brand-text b{ color:#fff; font-weight:600; }

  nav.primary{ display:flex; align-items:center; gap:28px; }
  nav.primary a{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    letter-spacing:0.08em;
    text-transform:uppercase;
    text-decoration:none;
    color:var(--body-on-dark);
    position:relative;
    padding:4px 2px;
  }
  nav.primary a span{ color:var(--redline-light); margin-right:6px; }
  nav.primary a:hover{ color:#fff; }
  .btn-resume{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    letter-spacing:0.06em;
    text-transform:uppercase;
    color:var(--ink) !important;
    background:var(--vellum);
    padding:9px 16px;
    border-radius:var(--radius-sm);
    text-decoration:none;
    border:1px solid var(--vellum);
    transition:background .15s ease, color .15s ease;
  }
  .btn-resume:hover{ background:transparent; color:var(--vellum) !important; }

  .nav-toggle{ display:none; background:none; border:1px solid var(--ink-line); color:var(--vellum); width:38px; height:38px; border-radius:var(--radius-sm); }

  /* ---------- sheet section labels ---------- */
  .sheet-label{
    display:flex; align-items:center; gap:10px;
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    letter-spacing:0.12em;
    text-transform:uppercase;
    margin-bottom:18px;
  }
  .sheet-label .xhair{ position:relative; }
  .sheet-label .xhair-ring{ display:block; }

  section{ padding:100px 0; position:relative; }
  section + section{ border-top:1px solid var(--line); }

  /* ---------- cover ---------- */
  .cover{
    background:var(--ink);
    color:var(--vellum);
    padding-top:150px;
    border-top:none;
    background-image:
      linear-gradient(var(--ink-line) 1px, transparent 1px),
      linear-gradient(90deg, var(--ink-line) 1px, transparent 1px);
    background-size: 48px 48px;
    background-position: center top;
  }
  .cover .sheet-label{ color:var(--redline-light); }
  .cover .sheet-label .xhair-ring{ border-color: var(--redline-light); }

  .eyebrow{
    font-family:'IBM Plex Mono', monospace;
    font-size:13px;
    letter-spacing:0.1em;
    text-transform:uppercase;
    color:var(--blueprint-light);
    margin:0 0 20px;
  }

  h1.headline{
    font-size:clamp(2.4rem, 5.4vw, 4.4rem);
    line-height:1.04;
    letter-spacing:-0.01em;
    font-weight:700;
    margin:0 0 28px;
    max-width:16ch;
    color:#fff;
  }
  .headline em{
    font-style:normal;
    color:var(--blueprint-light);
  }

  .lede{
    font-size:1.2rem;
    line-height:1.55;
    color:var(--body-on-dark);
    max-width:56ch;
    margin:0 0 40px;
  }

  .cta-row{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom:76px; }
  .btn{
    font-family:'IBM Plex Mono', monospace;
    font-size:13px;
    letter-spacing:0.05em;
    text-transform:uppercase;
    text-decoration:none;
    padding:14px 22px;
    border-radius:var(--radius-sm);
    display:inline-flex; align-items:center; gap:10px;
    transition:transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  }
  .btn-primary{ background:var(--blueprint); color:#fff; border:1px solid var(--blueprint); }
  .btn-primary:hover{ background:#1d4685; transform:translateY(-1px); }
  .btn-outline{ background:transparent; color:var(--vellum); border:1px solid var(--ink-line); }
  .btn-outline:hover{ border-color:var(--vellum); transform:translateY(-1px); }

  /* stat callouts styled as dimension lines */
  .stats{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    border-top:1px solid var(--ink-line);
    padding-top:36px;
  }
  .stat{
    padding-right:20px;
    position:relative;
  }
  .stat::before{
    content:"";
    position:absolute;
    top:-37px; left:0;
    width:1px; height:14px;
    background:var(--redline-light);
  }
  .stat-num{
    font-family:'IBM Plex Mono', monospace;
    font-size:clamp(1.5rem,3vw,2.1rem);
    font-weight:600;
    color:#fff;
    display:block;
  }
  .stat-label{
    font-family:'IBM Plex Mono', monospace;
    font-size:11px;
    letter-spacing:0.08em;
    text-transform:uppercase;
    color:var(--graphite-light,#9A9C9E);
    margin-top:6px;
    display:block;
  }
  .stats-source{
    grid-column:1 / -1;
    margin-top:22px;
    font-size:12.5px;
    color:var(--graphite-light,#8b8d8f);
  }
  .stats-source a{ color:var(--blueprint-light); text-decoration:none; border-bottom:1px solid rgba(125,161,222,0.4); }

  /* ---------- capabilities ---------- */
  .capabilities{ background:var(--vellum); }
  .cap-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .cap-card{
    background:var(--vellum);
    padding:34px 30px;
  }
  .cap-tag{
    display:flex; align-items:center; gap:8px;
    color:var(--blueprint);
    margin-bottom:18px;
  }
  .cap-tag .xhair-ring{ border-color:var(--blueprint); }
  .cap-tag span{
    font-family:'IBM Plex Mono', monospace;
    font-size:11px;
    letter-spacing:0.1em;
    text-transform:uppercase;
  }
  .cap-card h3{
    font-size:1.2rem;
    margin:0 0 12px;
    letter-spacing:-0.005em;
  }
  .cap-card p{
    margin:0;
    color:var(--body-on-light);
    font-size:0.97rem;
    line-height:1.6;
  }

  /* ---------- work ---------- */
  .work{ background:var(--vellum); }
  .work-head{
    display:flex; justify-content:space-between; align-items:flex-end;
    margin-bottom:44px; gap:20px; flex-wrap:wrap;
  }
  .work-head h2{ font-size:2rem; margin:0; letter-spacing:-0.01em; }
  .work-head p{ margin:0; color:var(--graphite); max-width:36ch; font-size:0.95rem; }

  .work-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
  .work-card{
    background:var(--paper-card);
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    overflow:hidden;
    text-decoration:none;
    color:inherit;
    display:flex; flex-direction:column;
    transition:border-color .15s ease, transform .15s ease;
  }
  .work-card:hover{ border-color:var(--blueprint); transform:translateY(-3px); }
  .work-thumb{
    aspect-ratio:4/3;
    overflow:hidden;
    background:var(--paper-card);
    border-bottom:1px solid var(--line);
    display:flex;
    align-items:flex-start;
    justify-content:center;
  }
  .work-thumb img{ width:100%; height:100%; object-fit:contain; object-position:top; }
  .work-body{ padding:22px 22px 26px; flex:1; display:flex; flex-direction:column; }
  .work-client{
    font-family:'IBM Plex Mono', monospace;
    font-size:11px; letter-spacing:0.08em; text-transform:uppercase;
    color:var(--redline);
    margin-bottom:10px;
  }
  .work-body h3{ margin:0 0 10px; font-size:1.15rem; }
  .work-body p{ margin:0 0 18px; font-size:0.92rem; color:var(--body-on-light); flex:1; }
  .work-link{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px; letter-spacing:0.05em; text-transform:uppercase;
    color:var(--blueprint);
    display:flex; align-items:center; gap:8px;
  }
  .work-card:hover .work-link{ gap:12px; }
  .work-link svg{ transition:transform .15s ease; }

  /* ---------- case study ---------- */
  .case{ background:var(--ink); color:var(--vellum); }
  .case .sheet-label{ color:var(--redline-light); }
  .case .sheet-label .xhair-ring{ border-color:var(--redline-light); }

  .case-titleblock{
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1fr;
    border:1px solid var(--ink-line);
    margin-bottom:60px;
  }
  .tb-cell{
    padding:20px 22px;
    border-right:1px solid var(--ink-line);
  }
  .tb-cell:last-child{ border-right:none; }
  .tb-k{
    font-family:'IBM Plex Mono', monospace;
    font-size:10.5px; letter-spacing:0.1em; text-transform:uppercase;
    color:var(--graphite-light,#8b8d8f);
    margin-bottom:8px;
  }
  .tb-v{ font-size:1rem; color:#fff; }
  .tb-v a{ color:var(--blueprint-light); text-decoration:none; }
  .tb-v a:hover{ text-decoration:underline; }

  .case-hero-img{
    width:100%;
    border:1px solid var(--ink-line);
    margin-bottom:64px;
    aspect-ratio:16/8;
    overflow:hidden;
  }
  .case-hero-img img{ width:100%; height:100%; object-fit:cover; object-position:top; }

  .case-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:60px;
    margin-bottom:64px;
  }
  .case-grid h4, .case-block h4{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px; letter-spacing:0.1em; text-transform:uppercase;
    color:var(--blueprint-light);
    margin:0 0 16px;
  }
  .case-grid p, .case-block p{
    color:var(--body-on-dark);
    font-size:0.98rem;
    line-height:1.7;
    margin:0 0 14px;
  }
  .case-block{ margin-bottom:64px; }
  .case-block ul{ margin:0; padding-left:20px; color:var(--body-on-dark); font-size:0.98rem; line-height:1.8; }
  .case-block li{ margin-bottom:6px; }

  .case-results{
    border-top:1px solid var(--ink-line);
    padding-top:40px;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:30px;
  }
  .case-results .stat::before{ display:none; }
  .case-results .stat-num{ font-size:2.2rem; }

  .case-back{
    margin-top:70px;
    font-family:'IBM Plex Mono', monospace;
    font-size:12px; letter-spacing:0.06em; text-transform:uppercase;
    color:var(--blueprint-light);
    text-decoration:none;
    display:inline-flex; align-items:center; gap:8px;
  }

  /* ---------- about ---------- */
  .about{ background:var(--vellum); }
  .about-grid{
    display:grid;
    grid-template-columns:340px 1fr;
    gap:64px;
    align-items:start;
  }
  .about-photo{
    border:1px solid var(--line);
    aspect-ratio:3/4;
    overflow:hidden;
    background:var(--paper-card);
  }
  .about-photo img{ width:100%; height:100%; object-fit:cover; }
  .about-copy p{ font-size:1.05rem; line-height:1.75; margin:0 0 20px; color:var(--body-on-light); }
  .about-copy p:first-of-type{ font-size:1.2rem; color:var(--ink); }
  .about-facts{
    margin-top:32px;
    border-top:1px solid var(--line);
    padding-top:28px;
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:20px 30px;
  }
  .fact-k{
    font-family:'IBM Plex Mono', monospace;
    font-size:10.5px; letter-spacing:0.1em; text-transform:uppercase;
    color:var(--graphite);
    margin-bottom:6px;
  }
  .fact-v{ font-size:0.95rem; }

  /* ---------- contact ---------- */
  .contact{ background:var(--ink); color:var(--vellum); padding-bottom:0; }
  .contact .sheet-label{ color:var(--redline-light); }
  .contact .sheet-label .xhair-ring{ border-color:var(--redline-light); }
  .contact-head h2{
    font-size:clamp(2rem,4.5vw,3.2rem);
    max-width:18ch;
    line-height:1.08;
    margin:0 0 24px;
    color:#fff;
    letter-spacing:-0.01em;
  }
  .contact-head p{ color:var(--body-on-dark); font-size:1.05rem; max-width:52ch; margin:0 0 44px; }

  .contact-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    border-top:1px solid var(--ink-line);
    border-left:1px solid var(--ink-line);
  }
  .contact-cell{
    padding:26px 24px;
    border-right:1px solid var(--ink-line);
    border-bottom:1px solid var(--ink-line);
  }
  .contact-cell .tb-k{ margin-bottom:10px; }
  .contact-cell a{
    color:#fff;
    text-decoration:none;
    font-size:0.98rem;
  }
  .contact-cell a:hover{ color:var(--blueprint-light); }

  footer.stamp{
    margin-top:0;
    padding:22px 0;
    background:var(--ink);
    border-top:1px solid var(--ink-line);
  }
  .stamp-row{
    display:flex; justify-content:space-between; align-items:center;
    font-family:'IBM Plex Mono', monospace;
    font-size:11px; letter-spacing:0.06em; text-transform:uppercase;
    color:var(--graphite-light,#7d7f82);
  }

  /* ---------- reveal ---------- */
  .reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
  .reveal.is-visible{ opacity:1; transform:none; }

  /* ---------- responsive ---------- */
  @media (max-width: 900px){
    .cap-grid, .work-grid{ grid-template-columns:1fr; }
    .case-grid{ grid-template-columns:1fr; gap:36px; }
    .about-grid{ grid-template-columns:1fr; }
    .about-photo{ max-width:280px; }
    .stats{ grid-template-columns:repeat(2,1fr); row-gap:28px; }
    .case-titleblock{ grid-template-columns:1fr 1fr; }
    .tb-cell{ border-bottom:1px solid var(--ink-line); }
    .contact-grid{ grid-template-columns:1fr 1fr; }
    nav.primary{ display:none; }
    .nav-toggle{ display:block; }
    section{ padding:64px 0; }
  }
  @media (max-width: 560px){
    .contact-grid{ grid-template-columns:1fr; }
    .case-results{ grid-template-columns:1fr; gap:26px; }
    .wrap{ padding:0 20px; }
  }