:root{
    --paper:#F4EFE6;
    --paper-2:#ECE5D8;
    --ink:#1E1C19;
    --ink-soft:#3C3730;
    --taupe:#A89A87;
    --taupe-deep:#7C6E5C;
    --line: rgba(30,28,25,0.14);
    --line-soft: rgba(30,28,25,0.045);
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--paper);
    color:var(--ink-soft);
    font-family:'Inter',sans-serif;
    font-size:16px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  ::selection{background:var(--ink); color:var(--paper);}

  a{color:inherit; text-decoration:none;}
  .mono{
    font-family:'IBM Plex Mono', monospace;
    letter-spacing:0.06em;
    text-transform:uppercase;
    font-size:11.5px;
    color:var(--taupe-deep);
  }
  .display{
    font-family:'Fraunces', serif;
    color:var(--ink);
    font-weight:400;
    letter-spacing:-0.01em;
  }

  .wrap{
    max-width:1180px;
    margin:0 auto;
    padding:0 48px;
  }

  /* faint paper grain */
  body::before{
    content:"";
    position:fixed; inset:0;
    pointer-events:none;
    z-index:1;
    opacity:0.35;
    background-image:
      radial-gradient(circle at 1px 1px, rgba(30,28,25,0.06) 1px, transparent 0);
    background-size:3px 3px;
  }

  /* faint blueprint grid, fades in on scroll via JS */
  .grid-overlay{
    position:fixed; inset:0;
    pointer-events:none;
    z-index:0;
    opacity:0;
    transition:opacity 1.2s ease;
    background-image:
      linear-gradient(var(--line-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
    background-size:64px 64px;
  }
  .grid-overlay.show{opacity:0.6;}

  header, section, footer{position:relative; z-index:2;}
  header{z-index:20;}

  /* ===== NAV ===== */
  header{
    display:flex; align-items:center; justify-content:space-between;
    padding:32px 48px;
    max-width:1180px;
    margin:0 auto;
  }
  .wordmark{
    font-family:'Fraunces', serif;
    font-size:19px;
    color:var(--ink);
    display:flex; align-items:baseline; gap:8px;
  }
  .wordmark span.mono{font-size:10px; color:var(--taupe);}
  .nav-wrap{
    display:flex; align-items:center; gap:40px;
  }
  nav ul{
    list-style:none;
    display:flex; gap:28px;
  }
  .btn-install{
    font-family:'IBM Plex Mono', monospace;
    font-size:11.5px;
    letter-spacing:0.04em;
    padding:9px 16px;
    border:1px solid var(--ink);
    border-radius:2px;
    color:var(--ink);
    white-space:nowrap;
    transition:background 0.25s ease, color 0.25s ease;
  }
  .btn-install:hover{background:var(--ink); color:var(--paper);}
  nav a{
    font-family:'IBM Plex Mono', monospace;
    font-size:12.5px;
    letter-spacing:0.04em;
    color:var(--ink-soft);
    position:relative;
    padding-bottom:3px;
  }
  nav a::after{
    content:"";
    position:absolute; left:0; bottom:0;
    width:0; height:1px;
    background:var(--ink);
    transition:width 0.3s ease;
  }
  nav a:hover::after{width:100%;}
  .nav-toggle{
    display:none;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    gap:5px;
    width:38px; height:38px;
    background:none;
    border:1px solid var(--line);
    border-radius:2px;
    cursor:pointer;
    padding:0;
    z-index:60;
    position:relative;
  }
  .nav-toggle span{
    display:block;
    width:16px; height:1px;
    background:var(--ink);
    transition:transform 0.3s ease, opacity 0.3s ease;
  }
  .nav-toggle.active span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle.active span:nth-child(2){opacity:0;}
  .nav-toggle.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  /* ===== HERO ===== */
  .hero{
    padding:64px 0 110px;
  }
  .hero-inner{
    display:grid;
    grid-template-columns:1.15fr 0.85fr;
    gap:64px;
    align-items:center;
  }
  .eyebrow{
    display:flex; align-items:center; gap:10px;
    margin-bottom:28px;
  }
  .eyebrow .dash{width:28px; height:1px; background:var(--taupe-deep);}
  h1.display{
    font-size:clamp(38px, 4.6vw, 62px);
    line-height:1.08;
    font-weight:400;
    max-width:640px;
  }
  h1.display em{
    font-style:italic;
    font-weight:400;
    color:var(--taupe-deep);
  }
  .hero-sub{
    margin-top:26px;
    max-width:440px;
    font-size:16.5px;
    color:var(--ink-soft);
  }
  .hero-cta{
    margin-top:40px;
    display:flex; gap:28px; align-items:center;
  }
  .btn-primary{
    display:inline-flex; align-items:center; gap:10px;
    background:var(--ink);
    color:var(--paper);
    font-family:'IBM Plex Mono', monospace;
    font-size:12.5px;
    letter-spacing:0.04em;
    padding:14px 22px;
    border-radius:2px;
    transition:transform 0.25s ease, background 0.25s ease;
  }
  .btn-primary:hover{transform:translateY(-2px); background:#0f0e0c;}
  .btn-ghost{
    font-family:'IBM Plex Mono', monospace;
    font-size:12.5px;
    letter-spacing:0.04em;
    color:var(--taupe-deep);
    border-bottom:1px solid var(--line);
    padding-bottom:2px;
  }
  .btn-ghost:hover{color:var(--ink); border-color:var(--ink);}

  /* hero photo, framed with construction-line SVG */
  .hero-figure{
    position:relative;
    width:100%;
    max-width:440px;
    aspect-ratio:320/400;
    margin:0 auto;
  }
  .hero-frame{
    position:absolute; inset:0;
    width:100%; height:100%;
  }
  .hero-photo{
    position:absolute;
    left:18.75%; top:14%;
    width:62.5%; height:79%;
    object-fit:cover;
    border:1px solid var(--line);
    background:var(--paper-2);
  }

  /* ===== STRIP (capabilities as line icons) ===== */
  .strip{
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:28px 0;
  }
  .strip-inner{
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:24px;
  }
  .cap{
    display:flex; align-items:center; gap:10px;
    flex:1 1 150px;
  }
  .cap img{width:22px; height:22px; flex-shrink:0;}
  .cap span{
    font-family:'IBM Plex Mono', monospace;
    font-size:11.5px;
    letter-spacing:0.03em;
    color:var(--ink-soft);
  }

  /* ===== TOOL LOGOS: grayscale by default, color on card hover ===== */
  .icon-logo{
    filter:grayscale(1) opacity(0.75);
    transition:filter 0.35s ease;
  }
  .work-card:hover .icon-logo{
    filter:grayscale(0) opacity(1);
  }

  /* ===== SECTION HEADERS ===== */
  .section{padding:118px 0 50px;}
  .section-head{
    display:grid;
    grid-template-columns:1fr 1.3fr;
    gap:48px;
    margin-bottom:64px;
    align-items:end;
  }
  .section-head h2{
    font-size:clamp(28px, 3vw, 40px);
    font-weight:400;
    line-height:1.15;
  }
  .section-head p{
    max-width:420px;
    color:var(--taupe-deep);
    font-size:15px;
  }

  /* ===== ABOUT / THESIS ===== */
  .thesis{
    border-top:1px solid var(--line);
  }
  .thesis-inner{
    padding-top:110px;
    display:grid;
    grid-template-columns:0.6fr 1fr;
    gap:64px;
  }
  .thesis .mono{display:block; margin-bottom:20px;}
  .thesis p.big{
    font-family:'Fraunces', serif;
    font-size:clamp(22px, 2.4vw, 30px);
    color:var(--ink);
    line-height:1.4;
    font-weight:400;
  }
  .thesis p.big em{color:var(--taupe-deep); font-style:italic;}
  .thesis-notes{
    display:flex; flex-direction:column; gap:28px;
    padding-top:8px;
  }
  .thesis-notes .note{border-top:1px solid var(--line); padding-top:16px;}
  .thesis-notes .note p{font-size:14.5px; color:var(--ink-soft); margin-top:8px;}

  /* ===== WORK ===== */
  .work-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .work-card{
    display:block;
    background:var(--paper);
    padding:44px;
    transition:background 0.3s ease;
  }
  .work-card:hover{background:var(--paper-2);}
  .work-grid-3{
    grid-template-columns:repeat(3, 1fr);
  }
  .work-grid-3 .work-card{padding:36px;}
  .work-grid-3 .work-card p{max-width:none;}
  .work-card .icon{
    width:34px; height:34px;
    margin-bottom:26px;
  }
  .work-card h3{
    font-family:'Fraunces', serif;
    font-size:22px;
    color:var(--ink);
    font-weight:500;
    margin-bottom:12px;
  }
  .work-card p{
    font-size:14.5px;
    color:var(--taupe-deep);
    max-width:360px;
  }
  .work-card .tag{
    display:inline-block;
    margin-top:20px;
    font-family:'IBM Plex Mono', monospace;
    font-size:10.5px;
    letter-spacing:0.05em;
    color:var(--taupe);
    text-transform:uppercase;
  }
  .status-badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-family:'IBM Plex Mono', monospace;
    font-size:10.5px;
    letter-spacing:0.05em;
    text-transform:uppercase;
    color:var(--taupe-deep);
    vertical-align:middle;
    margin-left:10px;
  }
  .status-badge .dot{
    width:6px; height:6px;
    border-radius:50%;
    background:var(--taupe-deep);
    display:inline-block;
  }

  /* ===== PROCESS ===== */
  .process{border-top:1px solid var(--line);}
  .process-inner{padding-top:110px; padding-bottom:45px;}
  .steps{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:0;
    position:relative;
  }
  .steps::before{
    content:"";
    position:absolute; top:19px; left:0; right:0;
    height:1px;
    background:var(--line);
  }
  .step{
    padding-right:28px;
    position:relative;
  }
  .step-num{
    width:38px; height:38px;
    border-radius:50%;
    background:var(--paper);
    border:1px solid var(--ink);
    display:flex; align-items:center; justify-content:center;
    font-family:'IBM Plex Mono', monospace;
    font-size:11px;
    color:var(--ink);
    margin-bottom:26px;
    position:relative; z-index:2;
  }
  .step h4{
    font-family:'Fraunces', serif;
    font-size:18px;
    color:var(--ink);
    font-weight:500;
    margin-bottom:10px;
  }
  .step p{font-size:13.5px; color:var(--taupe-deep);}

  /* ===== WRITING ===== */
  .writing{border-top:1px solid var(--line);}
  .writing-inner{padding-top:110px;}
  .paper-row{
    display:grid;
    grid-template-columns:80px 1fr 140px 24px;
    align-items:center;
    gap:20px;
    padding:22px 0;
    border-top:1px solid var(--line);
    transition:padding-left 0.3s ease;
  }
  .paper-row:last-child{border-bottom:1px solid var(--line);}
  .paper-row:hover{padding-left:10px;}
  .paper-row .pid{font-family:'IBM Plex Mono', monospace; font-size:12px; color:var(--taupe);}
  .paper-row .ptitle{font-family:'Fraunces', serif; font-size:18px; color:var(--ink); font-weight:400;}
  .paper-row .ptag{font-family:'IBM Plex Mono', monospace; font-size:10.5px; letter-spacing:0.04em; color:var(--taupe-deep); text-transform:uppercase;}
  .paper-row .parrow{width:16px; height:16px; transition:transform 0.3s ease;}
  .paper-row:hover .parrow{transform:translateX(4px);}

  /* ===== BLOG ===== */
  .blog-section{border-top:1px solid var(--line); padding-top:110px; padding-bottom:50px;}
  .blog-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .blog-card{
    display:block;
    background:var(--paper);
    padding:38px 40px;
    transition:background 0.3s ease, padding-left 0.3s ease;
  }
  .blog-card:hover{background:var(--paper-2); padding-left:48px;}
  .blog-date{display:block; margin-bottom:16px; color:var(--taupe);}
  .blog-card h3{
    font-family:'Fraunces', serif;
    font-size:19px;
    font-weight:500;
    color:var(--ink);
    line-height:1.3;
    margin-bottom:12px;
    max-width:380px;
  }
  .blog-card p{
    font-size:14px;
    color:var(--taupe-deep);
    max-width:380px;
    margin-bottom:20px;
  }
  .blog-tag{color:var(--ink-soft); letter-spacing:0.04em;}

  /* ===== FOOTER / CONTACT ===== */
  footer{
    border-top:1px solid var(--line);
    padding:110px 0 48px;
  }
  .contact-inner{
    display:grid;
    grid-template-columns:1.2fr 1fr;
    gap:48px;
    padding-bottom:80px;
  }
  footer h2{
    font-family:'Fraunces', serif;
    font-size:clamp(30px, 4vw, 52px);
    color:var(--ink);
    font-weight:400;
    line-height:1.15;
    max-width:520px;
  }
  .contact-links{
    display:flex; flex-direction:column; gap:0;
    justify-content:center;
  }
  .contact-links a{
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 0;
    border-bottom:1px solid var(--line);
    font-family:'IBM Plex Mono', monospace;
    font-size:13px;
    letter-spacing:0.03em;
    color:var(--ink-soft);
  }
  .contact-links a img{width:14px; height:14px;}
  .contact-links a:hover{color:var(--ink);}
  .foot-bottom{
    display:flex; justify-content:space-between;
    padding-top:28px;
    border-top:1px solid var(--line);
    font-family:'IBM Plex Mono', monospace;
    font-size:11px;
    color:var(--taupe);
    letter-spacing:0.03em;
  }
  .foot-link{
    border-bottom:1px solid var(--line);
    padding-bottom:1px;
    margin-left:4px;
  }
  .foot-link:hover{color:var(--ink); border-color:var(--ink);}

  /* ===== BLOG HERO (blog.html) ===== */
  .blog-hero{
    padding:64px 0 72px;
    max-width:720px;
  }
  .blog-hero h1.display{
    font-size:clamp(34px, 4.2vw, 52px);
    line-height:1.12;
    font-weight:400;
    margin-top:24px;
  }
  .blog-hero-sub{
    margin-top:22px;
    max-width:520px;
    font-size:16.5px;
    color:var(--ink-soft);
  }

  .work-topbar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    margin-bottom:0;
  }
  .work-topbar .eyebrow{margin-bottom:0;}

  /* ===== WORK HERO (work.html) - topbar spans full width, copy stays narrow ===== */
  .work-hero{
    padding:64px 0 72px;
  }
  .work-hero-copy{
    max-width:720px;
    margin-top:32px;
  }
  .work-hero-copy h1.display{
    font-size:clamp(34px, 4.2vw, 52px);
    line-height:1.12;
    font-weight:400;
  }

  .work-cat-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:20px;
    margin-bottom:44px;
    padding-bottom:24px;
    border-bottom:1px solid var(--line);
  }
  .work-cat-head .eyebrow{margin-bottom:14px;}
  .work-cat-head h2{
    font-size:clamp(24px, 2.6vw, 32px);
    font-weight:400;
    color:var(--ink);
    line-height:1.2;
  }
  .work-cat-head .btn-ghost{white-space:nowrap;}

  /* ===== BLOG INDEX GRID (blog.html) ===== */
  .blog-index{
    border-top:1px solid var(--line);
    padding:72px 0 118px;
  }
  .blog-post-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .post-card{
    display:block;
    background:var(--paper);
    transition:background 0.3s ease;
  }
  .post-card:hover{background:var(--paper-2);}
  .post-thumb{
    width:100%;
    aspect-ratio:400/250;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .post-thumb img{
    width:100%; height:100%;
    display:block;
    object-fit:cover;
    transition:transform 0.4s ease;
  }
  .post-card:hover .post-thumb img{transform:scale(1.03);}
  .post-body{padding:32px 36px 38px;}
  .blog-tag{
    display:inline-block;
    color:var(--taupe-deep);
    letter-spacing:0.05em;
    margin-bottom:14px;
  }
  .post-card h2{
    font-family:'Fraunces', serif;
    font-size:21px;
    font-weight:500;
    color:var(--ink);
    line-height:1.3;
    margin-bottom:12px;
    max-width:380px;
  }
  .post-card p{
    font-size:14.5px;
    color:var(--taupe-deep);
    max-width:380px;
    margin-bottom:22px;
  }
  .post-meta{
    color:var(--ink-soft);
    letter-spacing:0.03em;
  }
  .post-meta .sep{color:var(--taupe); margin:0 6px;}

  /* ===== APPROACH / SERVICES PAGE ===== */
  .diagram-wrap{
    width:100%;
    margin:8px 0 40px;
  }
  .diagram-wrap img{
    width:100%;
    height:auto;
    display:block;
  }
  .diagram-wrap-narrow{
    max-width:560px;
    margin-left:auto;
    margin-right:auto;
  }

  .stage-pills{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
  }
  .stage-pill{
    border:1px solid var(--line);
    padding:9px 16px;
    border-radius:2px;
    font-size:11.5px;
    color:var(--ink-soft);
    background:var(--paper-2);
  }
  .stage-pill-accent{
    border-color:var(--ink);
    color:var(--paper);
    background:var(--ink);
  }

  .platform-grid{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:36px 24px;
    margin-top:8px;
  }
  .platform-grid-compact{
    grid-template-columns:repeat(2, 1fr);
    max-width:280px;
  }
  .platform-item{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:12px;
    text-align:center;
  }
  .platform-item img{
    width:48px; height:48px;
    transition:transform 0.25s ease;
  }
  .platform-item:hover img{transform:translateY(-3px);}
  .platform-item span{color:var(--ink-soft); font-size:11px;}

  .platform-note{
    margin-top:32px;
    max-width:560px;
    font-size:13.5px;
    color:var(--taupe-deep);
  }

  .flow-chain{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-bottom:48px;
  }
  .flow-pill{
    border:1px solid var(--line);
    padding:10px 18px;
    border-radius:2px;
    font-size:12px;
    color:var(--ink-soft);
    background:var(--paper-2);
  }
  .flow-pill-accent{
    border-color:var(--ink);
    color:var(--paper);
    background:var(--ink);
  }
  .flow-arrow{
    color:var(--taupe);
    font-size:14px;
  }

  .signal-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .signal-item{
    background:var(--paper);
    padding:28px 30px;
  }
  .signal-item span{
    display:block;
    color:var(--ink);
    font-size:12px;
    letter-spacing:0.04em;
    text-transform:uppercase;
    margin-bottom:10px;
  }
  .signal-item p{
    font-size:13.5px;
    color:var(--taupe-deep);
  }

  /* ===== WHITEPAPER STAT STRIP ===== */
  .stat-strip{
    display:flex;
    flex-wrap:wrap;
    gap:36px;
    padding:24px 0;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    margin:28px 0 36px;
  }
  .stat-block{display:flex; flex-direction:column; gap:4px;}
  .stat-block .num{
    font-family:'Fraunces', serif;
    font-size:26px;
    color:var(--ink);
  }
  .stat-block .lbl{
    font-family:'IBM Plex Mono', monospace;
    font-size:11px;
    color:var(--taupe-deep);
    letter-spacing:0.03em;
  }

  /* ===== INTERNAL BLOG POST ===== */
  .post-back{
    display:inline-block;
    margin-top:40px;
    color:var(--taupe-deep);
    font-size:12px;
    letter-spacing:0.03em;
  }
  .post-back:hover{color:var(--ink);}

  .post-layout{
    display:grid;
    grid-template-columns:220px 1fr;
    gap:72px;
    align-items:start;
    padding:40px 0 130px;
  }

  .post-toc{
    position:sticky;
    top:40px;
    align-self:start;
  }
  .toc-label{
    display:block;
    margin-bottom:18px;
    color:var(--taupe);
  }
  .toc-nav{
    display:flex;
    flex-direction:column;
    gap:3px;
  }
  .toc-link{
    display:block;
    padding:6px 0 6px 16px;
    border-left:2px solid var(--line);
    color:var(--taupe-deep);
    font-size:12.5px;
    line-height:1.4;
    transition:color 0.2s ease, border-color 0.2s ease;
  }
  .toc-link.toc-h1{
    font-weight:600;
    color:var(--ink);
    font-size:13px;
    margin-bottom:6px;
  }
  .toc-link.toc-h2{
    font-weight:600;
    color:var(--ink-soft);
  }
  .toc-link.toc-h3{
    font-weight:400;
    padding-left:30px;
    font-size:12px;
  }
  .toc-link:hover{color:var(--ink);}
  .toc-link.active{
    color:var(--ink);
    border-left-color:var(--ink);
  }

  .post-content{
    max-width:680px;
  }
  .post-meta-header{
    color:var(--taupe-deep);
    margin-bottom:22px;
  }
  .post-meta-header .sep{color:var(--taupe); margin:0 8px;}

  .post-content h1.display{
    font-size:clamp(30px, 3.6vw, 44px);
    line-height:1.14;
    font-weight:400;
    color:var(--ink);
    margin-bottom:20px;
  }
  .post-lede{
    font-size:17px;
    color:var(--ink-soft);
    margin-bottom:32px;
    line-height:1.55;
  }
  .post-content h2{
    font-family:'Fraunces', serif;
    font-size:26px;
    font-weight:500;
    color:var(--ink);
    margin:52px 0 18px;
    scroll-margin-top:32px;
  }
  .post-content h3{
    font-family:'Fraunces', serif;
    font-size:19px;
    font-weight:500;
    color:var(--ink);
    margin:34px 0 14px;
    scroll-margin-top:32px;
  }
  .post-content h1{scroll-margin-top:32px;}
  .post-content p{
    font-size:15.5px;
    color:var(--ink-soft);
    line-height:1.75;
    margin-bottom:20px;
  }
  .post-content code{
    font-family:'IBM Plex Mono', monospace;
    font-size:0.9em;
    background:var(--paper-2);
    border:1px solid var(--line);
    padding:1px 6px;
    border-radius:2px;
    color:var(--ink);
  }
  .post-content strong{color:var(--ink); font-weight:600;}
  .post-content p a,
  .post-content li a{
    color:var(--ink);
    text-decoration:underline;
    text-decoration-color:var(--taupe);
    text-underline-offset:3px;
    transition:text-decoration-color 0.2s ease, color 0.2s ease;
  }
  .post-content p a:hover,
  .post-content li a:hover{
    color:var(--taupe-deep);
    text-decoration-color:var(--taupe-deep);
  }

  .post-figure{
    margin:36px 0 40px;
  }
  .post-figure img{
    width:100%;
    max-width:100%;
    height:auto;
    display:block;
    border:1px solid var(--line);
  }
  .post-figure-caption{
    display:block;
    margin-top:12px;
    color:var(--taupe);
    font-size:11px;
  }

  /* ===== 404 PAGE ===== */
  .error-404{
    padding:140px 0 160px;
    max-width:640px;
  }
  .error-404 h1.display{
    font-size:clamp(32px, 4vw, 48px);
    line-height:1.15;
    margin-top:22px;
  }
  .error-404 .blog-hero-sub{
    margin-top:20px;
    max-width:520px;
  }
  .error-links{
    display:flex;
    flex-wrap:wrap;
    gap:12px 28px;
    margin-top:56px;
    padding-top:28px;
    border-top:1px solid var(--line);
  }
  .error-links a{
    font-family:'IBM Plex Mono', monospace;
    font-size:12px;
    letter-spacing:0.03em;
    color:var(--taupe-deep);
  }
  .error-links a:hover{color:var(--ink);}

  /* ===== RELATED READING (cross-links on posts and papers) ===== */
  .related-section{
    border-top:1px solid var(--line);
    margin-top:64px;
    padding-top:36px;
  }
  .related-section > .toc-label{
    display:block;
    margin-bottom:24px;
    color:var(--taupe);
  }
  .related-groups{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:40px;
  }
  .related-group-label{
    display:block;
    margin-bottom:12px;
    color:var(--ink-soft);
    font-size:10.5px;
    letter-spacing:0.03em;
    text-transform:uppercase;
  }
  .related-list{
    display:flex;
    flex-direction:column;
  }
  .related-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:14px 0;
    border-bottom:1px solid var(--line);
    text-decoration:none;
    transition:padding-left 0.3s ease;
  }
  .related-row:hover{padding-left:8px;}
  .related-title{
    font-family:'Fraunces', serif;
    font-size:14.5px;
    color:var(--ink);
    font-weight:400;
    line-height:1.4;
  }
  .related-arrow{
    flex-shrink:0;
    width:14px;
    height:14px;
    transition:transform 0.3s ease;
  }
  .related-row:hover .related-arrow{transform:translateX(4px);}

  /* long-article TOC: cap height and allow internal scroll */
  .post-toc{
    max-height:calc(100vh - 80px);
    overflow-y:auto;
    scrollbar-width:thin;
    scrollbar-color:var(--taupe) transparent;
  }
  .post-toc::-webkit-scrollbar{
    width:6px;
  }
  .post-toc::-webkit-scrollbar-track{
    background:transparent;
  }
  .post-toc::-webkit-scrollbar-thumb{
    background:var(--taupe);
    border-radius:0;
  }
  .post-toc::-webkit-scrollbar-thumb:hover{
    background:var(--taupe-deep);
  }

  .post-content ul,
  .post-content ol{
    margin:0 0 24px;
    padding-left:22px;
  }
  .post-content ul li,
  .post-content ol li{
    font-size:15.5px;
    color:var(--ink-soft);
    line-height:1.7;
    margin-bottom:8px;
  }
  .post-content ol{counter-reset:item;}

  .post-content .checklist{
    list-style:none;
    padding-left:0;
  }
  .post-content .checklist li{
    position:relative;
    padding-left:28px;
  }
  .post-content .checklist li::before{
    content:"";
    position:absolute;
    left:0; top:4px;
    width:14px; height:14px;
    border:1.4px solid var(--taupe-deep);
    border-radius:2px;
  }

  .post-content blockquote{
    margin:32px 0;
    padding:20px 24px;
    border-left:2px solid var(--ink);
    background:var(--paper-2);
    color:var(--ink-soft);
    font-size:14.5px;
    line-height:1.7;
  }
  .post-content blockquote strong{color:var(--ink);}

  .post-content pre{
    margin:28px 0;
    padding:20px 24px;
    background:var(--paper-2);
    border:1px solid var(--line);
    overflow-x:auto;
  }
  .post-content pre code{
    background:none;
    border:none;
    padding:0;
    font-size:12.5px;
    line-height:1.6;
    color:var(--ink-soft);
    white-space:pre;
  }

  .post-table-wrap{
    margin:28px 0;
    overflow-x:auto;
    border:1px solid var(--line);
    scrollbar-width:thin;
    scrollbar-color:var(--taupe) var(--paper-2);
  }
  .post-table-wrap::-webkit-scrollbar{
    height:8px;
  }
  .post-table-wrap::-webkit-scrollbar-track{
    background:var(--paper-2);
  }
  .post-table-wrap::-webkit-scrollbar-thumb{
    background:var(--taupe);
    border-radius:0;
  }
  .post-table-wrap::-webkit-scrollbar-thumb:hover{
    background:var(--taupe-deep);
  }
  .post-content table{
    width:100%;
    border-collapse:collapse;
    font-size:13px;
  }
  .post-content th{
    font-family:'IBM Plex Mono', monospace;
    font-size:11px;
    letter-spacing:0.03em;
    text-align:left;
    color:var(--ink);
    background:var(--paper-2);
    padding:10px 14px;
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  .post-content td{
    padding:10px 14px;
    border-bottom:1px solid var(--line);
    color:var(--ink-soft);
    vertical-align:top;
  }
  .post-content tr:last-child td{border-bottom:none;}

  .post-content dl{margin:0 0 24px;}
  .post-content dt{
    font-family:'IBM Plex Mono', monospace;
    font-size:12.5px;
    color:var(--ink);
    margin-top:16px;
  }
  .post-content dd{
    margin:4px 0 0;
    font-size:14.5px;
    color:var(--taupe-deep);
    line-height:1.6;
  }

  @media (max-width: 1080px){
    .post-layout{grid-template-columns:180px 1fr; gap:48px;}
  }

  @media (max-width: 860px){
    .wrap{padding:0 24px;}
    header{padding:22px 24px;}

    .nav-toggle{display:flex;}
    .nav-toggle.active{border-color:var(--paper);}
    .nav-toggle.active span{background:var(--paper);}
    .nav-wrap{
      position:fixed;
      inset:0;
      flex-direction:column;
      justify-content:center;
      align-items:center;
      gap:36px;
      background:var(--ink);
      transform:translateY(-8px);
      opacity:0;
      pointer-events:none;
      transition:opacity 0.3s ease, transform 0.3s ease;
      z-index:50;
    }
    .nav-wrap.open{
      opacity:1;
      transform:translateY(0);
      pointer-events:auto;
    }
    .nav-wrap nav ul{
      flex-direction:column;
      align-items:center;
      gap:26px;
    }
    .nav-wrap nav a{font-size:17px; color:var(--paper);}
    .nav-wrap nav a::after{background:var(--paper);}
    .nav-wrap .btn-install{
      padding:13px 26px;
      font-size:13px;
      color:var(--paper);
      border-color:var(--paper);
    }
    .nav-wrap .btn-install:hover{background:var(--paper); color:var(--ink);}

    .hero{padding:36px 0 52px;}
    .hero-inner{grid-template-columns:1fr; gap:44px;}
    .hero-figure{max-width:220px;}
    h1.display{max-width:100%;}
    .hero-sub{max-width:100%;}
    .hero-cta{flex-wrap:wrap; gap:20px;}

    .strip-inner{justify-content:flex-start; gap:20px 28px;}
    .cap{flex:1 1 42%;}

    .section{padding:64px 0 28px;}
    .section-head{grid-template-columns:1fr; margin-bottom:36px; gap:16px;}
    .thesis-inner{grid-template-columns:1fr; gap:32px; padding-top:56px;}
    .thesis-notes{gap:22px;}
    .process-inner{padding-top:56px; padding-bottom:24px;}
    .writing-inner{padding-top:56px;}
    .blog-section{padding-top:56px; padding-bottom:28px;}

    .work-grid{grid-template-columns:1fr;}
    .work-card{padding:30px;}
    .work-grid-3{grid-template-columns:1fr;}

    .work-topbar{flex-wrap:wrap; gap:14px;}

    .steps{grid-template-columns:1fr 1fr; row-gap:34px; column-gap:20px;}
    .steps::before{display:none;}
    .step{padding-right:0;}

    .paper-row{
      display:flex;
      flex-wrap:wrap;
      align-items:baseline;
      gap:6px 14px;
      padding:18px 0;
    }
    .paper-row .ptitle{width:100%; order:2;}
    .paper-row .parrow{display:none;}

    .blog-grid{grid-template-columns:1fr;}
    .blog-card{padding:28px 26px;}
    .blog-card:hover{padding-left:26px;}

    footer{padding:56px 0 32px;}
    .contact-inner{grid-template-columns:1fr; gap:32px; padding-bottom:44px;}
    footer h2{max-width:100%;}
    .foot-bottom{flex-direction:column; gap:10px; text-align:left;}

    .blog-hero{padding:36px 0 48px;}
    .work-hero{padding:36px 0 48px;}
    .error-404{padding:72px 0 80px;}
    .work-hero-copy{margin-top:24px;}
    .blog-index{padding-top:48px; padding-bottom:64px;}
    .blog-post-grid{grid-template-columns:1fr;}
    .post-body{padding:26px 24px 30px;}

    .platform-grid{grid-template-columns:repeat(2, 1fr); gap:28px 16px;}
    .platform-grid-compact{grid-template-columns:repeat(2, 1fr);}
    .stage-pills{gap:8px;}
    .stage-pill{padding:7px 12px; font-size:10.5px;}

    .flow-chain{gap:8px;}
    .flow-pill{padding:8px 13px; font-size:11px;}
    .signal-grid{grid-template-columns:1fr;}
    .signal-item{padding:22px 22px;}

    .post-layout{grid-template-columns:1fr; gap:0; padding:24px 0 72px;}
    .post-toc{display:none;}
    .post-content{max-width:100%;}
    .post-content h2{font-size:22px; margin:40px 0 14px;}
    .post-content h3{font-size:17px; margin:28px 0 12px;}
    .related-groups{grid-template-columns:1fr; gap:28px;}
  }

  @media (max-width: 480px){
    .wrap{padding:0 20px;}
    header{padding:20px;}
    .wordmark{font-size:17px;}
    h1.display{font-size:32px;}
    .thesis p.big{font-size:21px;}
    .section-head h2{font-size:26px;}
    .steps{grid-template-columns:1fr; row-gap:30px;}
    .work-card{padding:26px 22px;}
    .cap{flex:1 1 100%;}
    .strip{padding:24px 0;}
  }

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