:root{
    --bg:#ffffff;
    --bg-subtle:#f7f6f3;
    --ink:#16181d;
    --ink-soft:#5b5f66;
    --ink-faint:#8a8e94;
    --line:#e6e4df;
    --accent:#24408e;
    --accent-soft:#eef1f9;
    --accent-warm:#b5762e;
    --radius:10px;
    --max:1160px;
    --serif: "Source Serif 4", Georgia, serif;
    --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
  }

  *{ box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  @media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:var(--sans);
    font-size:16px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  img,svg{ display:block; max-width:100%; }
  a{ color:inherit; text-decoration:none; }
  ul{ margin:0; padding:0; list-style:none; }
  h1,h2,h3{ font-family:var(--serif); font-weight:600; margin:0; color:var(--ink); }

  .wrap{ max-width:var(--max); margin:0 auto; padding:0 32px; }
  @media (max-width:768px){ .wrap{ padding:0 24px; } }
  @media (max-width:480px){ .wrap{ padding:0 18px; } }

  section{ padding:96px 0; border-top:1px solid var(--line); }
  section:first-of-type{ border-top:none; }
  @media (max-width:1024px){ section{ padding:80px 0; } }
  @media (max-width:768px){ section{ padding:60px 0; } }
  @media (max-width:480px){ section{ padding:48px 0; } }

  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    font-family:var(--mono); font-size:12px; letter-spacing:.08em;
    text-transform:uppercase; color:var(--accent); margin-bottom:14px;
  }
  .eyebrow .node{ flex:none; }

  .section-head{ max-width:640px; margin-bottom:48px; }
  .section-head h2{ font-size:clamp(26px,3.4vw,34px); line-height:1.2; }
  .section-head .desc{ color:var(--ink-soft); margin-top:12px; font-size:16px; }
  .section-head-row{
    display:flex; justify-content:space-between; align-items:flex-end; gap:24px; margin-bottom:48px;
  }
  .section-head-row .section-head{ margin-bottom:0; }
  .view-all{ font-family:var(--mono); font-size:13px; color:var(--accent); white-space:nowrap; border-bottom:1px solid transparent; }
  .view-all:hover{ border-bottom-color:var(--accent); }
  @media (max-width:640px){
    .section-head-row{ flex-direction:column; align-items:flex-start; gap:10px; margin-bottom:36px; }
  }
  @media (max-width:480px){
    .section-head{ margin-bottom:32px; }
  }

  /* ---------- Nav ---------- */
  header{
    position:sticky; top:0; z-index:50; background:rgba(255,255,255,.92);
    backdrop-filter:saturate(180%) blur(8px); border-bottom:1px solid var(--line);
  }
  .nav{ display:flex; align-items:center; justify-content:space-between; padding:18px 32px; max-width:var(--max); margin:0 auto; }
  .logo{ font-family:var(--serif); font-weight:600; font-size:19px; flex:none; }
  .nav-links{ display:flex; gap:32px; }
  .nav-links a{ font-size:14px; color:var(--ink-soft); }
  .nav-links a:hover{ color:var(--ink); }
  .nav-right{ display:flex; align-items:center; gap:18px; }
  .icon-link{ color:var(--ink-soft); display:flex; padding:4px; margin:-4px; }
  .icon-link:hover{ color:var(--ink); }
  .btn{
    font-family:var(--sans); font-size:14px; font-weight:500; padding:9px 18px;
    border-radius:var(--radius); border:1px solid var(--ink); cursor:pointer; display:inline-flex; align-items:center; gap:8px;
  }
  .btn-primary{ background:var(--accent); border-color:var(--accent); color:#fff; }
  .btn-primary:hover{ background:#1c3372; }
  .btn-outline{ background:transparent; border-color:var(--line); color:var(--ink); }
  .btn-outline:hover{ border-color:var(--ink); }
  .btn-sm{ padding:7px 14px; font-size:13px; }
  .nav-toggle{
    display:none; background:none; border:none; cursor:pointer;
    padding:8px; margin:-8px -8px -8px 0; color:var(--ink);
  }

  @media (max-width:900px){
    .nav-links{ display:none; }
    .nav-toggle{ display:flex; }
  }
  @media (max-width:768px){
    .nav{ padding:16px 24px; }
  }
  @media (max-width:480px){
    .nav{ padding:14px 18px; }
    .logo{ font-size:17px; }
    .nav-right{ gap:10px; }
    .btn-sm{ padding:6px 11px; font-size:12.5px; }
  }
  @media (max-width:360px){
    .btn-sm span, .resume-btn{ display:none; } /* icon-only fallback if resume label wraps */
  }

  /* ---------- Hero ---------- */
  .hero{ padding-top:76px; padding-bottom:64px; border-top:none; }
  .hero-grid{ display:grid; grid-template-columns:1.15fr 1fr; gap:56px; align-items:center; }
  @media (max-width:900px){ .hero-grid{ grid-template-columns:1fr; gap:40px; } }
  .hero h1{ font-size:clamp(32px,4.6vw,52px); line-height:1.12; letter-spacing:-.01em; }
  .hero h1 em{ font-style:normal; color:var(--accent); }
  .hero .desc{ color:var(--ink-soft); font-size:17px; margin-top:20px; max-width:52ch; }
  .hero-cta{ display:flex; align-items:center; gap:20px; margin-top:30px; flex-wrap:wrap; }
  .resume-link{ font-family:var(--mono); font-size:13px; color:var(--ink-soft); display:inline-flex; align-items:center; gap:6px; }
  .resume-link:hover{ color:var(--ink); }
  .hero-social{ display:flex; gap:16px; margin-top:34px; }

  .hero-art{ background:var(--bg-subtle); border:1px solid var(--line); border-radius:16px; padding:28px; }

  @media (max-width:768px){
    .hero{ padding-top:44px; padding-bottom:48px; }
    .hero .desc{ font-size:16px; max-width:none; }
  }
  @media (max-width:640px){
    .hero-cta{ gap:14px; }
    .hero-cta .btn{ flex:1 1 auto; justify-content:center; text-align:center; }
    .hero-art{ padding:18px; order:-1; }
  }
  @media (max-width:480px){
    .hero{ padding-top:32px; padding-bottom:40px; }
    .hero-cta{ flex-direction:column; align-items:stretch; }
    .hero-social{ gap:20px; margin-top:26px; }
  }

  /* ---------- About strip ---------- */
  .about-strip p{ font-size:19px; line-height:1.55; color:var(--ink); max-width:800px; font-family:var(--serif); font-weight:400; }
  .about-strip p strong{ font-weight:600; }
  @media (max-width:640px){ .about-strip p{ font-size:17px; } }

  /* ---------- Trusted + stats ---------- */
  .trust{ display:flex; flex-wrap:wrap; justify-content:space-between; gap:40px; align-items:center; }
  .trust-logos{ display:flex; gap:36px; align-items:center; flex-wrap:wrap; }
  .trust-logos span{ font-family:var(--serif); font-weight:600; font-size:19px; color:var(--ink-faint); }
  .stats{ display:flex; gap:40px; flex-wrap:wrap; }
  .stat b{ display:block; font-family:var(--serif); font-size:28px; color:var(--ink); }
  .stat span{ font-family:var(--mono); font-size:11px; color:var(--ink-faint); letter-spacing:.04em; text-transform:uppercase; }

  @media (max-width:900px){
    .trust{ gap:32px; }
    .stats{ gap:28px 32px; }
  }
  @media (max-width:640px){
    .trust{ flex-direction:column; align-items:flex-start; gap:28px; }
    .trust-logos{ gap:24px; }
    .trust-logos span{ font-size:17px; }
    .stats{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px 20px; width:100%; }
  }
  @media (max-width:480px){
    .stat b{ font-size:24px; }
  }

  /* ---------- Cards ---------- */
  .grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
  .grid-5{ display:grid; grid-template-columns:repeat(5,1fr); gap:18px; }
  .grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }

  @media (max-width:1024px){
    .grid-5{ grid-template-columns:repeat(3,1fr); }
  }
  @media (max-width:900px){
    .grid-3, .grid-2{ grid-template-columns:1fr 1fr; }
  }
  @media (max-width:768px){
    .grid-5{ grid-template-columns:1fr 1fr; }
  }
  @media (max-width:640px){
    .grid-3, .grid-5, .grid-2{ grid-template-columns:1fr; gap:18px; }
  }

  .card{
    border:1px solid var(--line); border-radius:var(--radius); padding:26px;
    display:flex; flex-direction:column; transition:border-color .2s ease, transform .2s ease;
  }
  .card:hover{ border-color:var(--ink-faint); }
  .tag{
    font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.05em;
    color:var(--accent); background:var(--accent-soft); padding:4px 9px; border-radius:5px;
    display:inline-block; margin-bottom:14px; width:fit-content;
  }
  .card h3{ font-size:19px; line-height:1.3; margin-bottom:10px; }
  .card p{ color:var(--ink-soft); font-size:14.5px; margin:0 0 18px; flex-grow:1; }
  .tech-row{ display:flex; flex-wrap:wrap; gap:6px; margin-bottom:16px; }
  .tech-row span{ font-family:var(--mono); font-size:11px; color:var(--ink-soft); border:1px solid var(--line); padding:3px 8px; border-radius:5px; }
  .card-link{ font-family:var(--mono); font-size:13px; color:var(--ink); display:inline-flex; align-items:center; gap:6px; border-top:1px solid var(--line); padding-top:14px; margin-top:auto; }
  .card-link:hover{ color:var(--accent); }

  @media (max-width:480px){
    .card{ padding:20px; }
  }

  .expertise-card{ padding:22px; }
  .expertise-card .node-icon{ margin-bottom:16px; }
  .expertise-card h3{ font-size:16px; margin-bottom:8px; }
  .expertise-card p{ font-size:13.5px; margin:0; }

  .article-card{ padding:0; overflow:hidden; }
  .article-card .art-thumb{
    height:120px; background:linear-gradient(135deg,#1c1f26,#2a2f3a);
    display:flex; align-items:center; justify-content:center;
  }
  .article-card .art-body{ padding:20px; }
  .article-meta{ font-family:var(--mono); font-size:11px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:.04em; margin-bottom:10px; }
  .article-card h3{ font-size:16.5px; line-height:1.35; margin-bottom:0; }
  .article-card .read-link{ font-family:var(--mono); font-size:12.5px; color:var(--accent); display:inline-block; margin-top:14px; }

  /* ---------- Experience ---------- */
  .timeline{ position:relative; padding-left:28px; }
  .timeline::before{ content:""; position:absolute; left:5px; top:6px; bottom:6px; width:1px; background:var(--line); }
  .timeline-item{ position:relative; padding-bottom:40px; }
  .timeline-item:last-child{ padding-bottom:0; }
  .timeline-item::before{
    content:""; position:absolute; left:-28px; top:5px; width:11px; height:11px; border-radius:50%;
    background:var(--bg); border:2px solid var(--ink-faint);
  }
  .timeline-item.current::before{ border-color:var(--accent); background:var(--accent); }
  .ti-row{ display:flex; justify-content:space-between; align-items:baseline; flex-wrap:wrap; gap:10px; margin-bottom:6px; }
  .ti-role{ font-family:var(--serif); font-weight:600; font-size:19px; }
  .ti-date{ font-family:var(--mono); font-size:12px; color:var(--ink-faint); }
  .ti-company{ color:var(--ink-soft); font-size:14.5px; margin-bottom:8px; }
  .ti-highlight{ color:var(--ink-soft); font-size:14.5px; max-width:640px; }

  @media (max-width:480px){
    .timeline{ padding-left:22px; }
    .timeline-item::before{ left:-22px; }
    .ti-role{ font-size:17px; }
    .ti-highlight{ max-width:none; }
  }

  /* ---------- Contact ---------- */
  .contact-box{ background:var(--bg-subtle); border:1px solid var(--line); border-radius:16px; padding:48px; display:grid; grid-template-columns:1.3fr 1fr; gap:40px; }
  @media (max-width:768px){ .contact-box{ grid-template-columns:1fr; padding:32px; } }
  @media (max-width:480px){ .contact-box{ padding:24px; border-radius:12px; gap:32px; } }
  .contact-box h2{ font-size:clamp(24px,3vw,30px); line-height:1.25; margin-bottom:14px; }
  .contact-box .desc{ color:var(--ink-soft); font-size:15.5px; max-width:44ch; margin-bottom:24px; }
  .status-pill{
    display:inline-flex; align-items:center; gap:7px; font-family:var(--mono); font-size:12px;
    color:var(--ink-soft); border:1px solid var(--line); padding:6px 12px; border-radius:20px; margin-bottom:26px;
  }
  .status-dot{ width:7px; height:7px; border-radius:50%; background:var(--accent-warm); }
  .contact-rows{ display:flex; flex-direction:column; gap:16px; }
  .contact-row{ display:flex; align-items:center; gap:10px; font-size:14.5px; color:var(--ink-soft); }
  .contact-row a:hover{ color:var(--ink); }
  .contact-social{ margin-top:auto; padding-top:24px; }
  .contact-social .label{ font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-faint); margin-bottom:12px; }
  .contact-social .icons{ display:flex; gap:14px; }
  .contact-social .icons a{ width:36px; height:36px; border:1px solid var(--line); border-radius:50%; display:flex; align-items:center; justify-content:center; color:var(--ink-soft); }
  .contact-social .icons a:hover{ border-color:var(--ink); color:var(--ink); }
  .contact-col-right{ display:flex; flex-direction:column; }

  @media (max-width:480px){
    .contact-box .btn-primary{ width:100%; justify-content:center; }
  }

  footer{ padding:32px 0; }
  .footer-row{ display:flex; justify-content:space-between; align-items:center; font-family:var(--mono); font-size:12px; color:var(--ink-faint); flex-wrap:wrap; gap:10px; }
  @media (max-width:480px){
    .footer-row{ flex-direction:column; align-items:flex-start; gap:6px; }
  }

  /* ---------- Reveal ---------- */
  .reveal{ opacity:0; transform:translateY(14px); transition:opacity .6s ease, transform .6s ease; }
  .reveal.in{ opacity:1; transform:none; }
  @media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; transition:none; } }

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

  /* ---------- Articles index page ---------- */
  .page-hero{ padding:72px 0 8px; }
  .page-hero h1{ font-size:clamp(30px,4.4vw,46px); line-height:1.15; margin-top:14px; }
  .page-hero .desc{ color:var(--ink-soft); font-size:17px; max-width:60ch; margin-top:16px; }

  .article-list{ display:flex; flex-direction:column; }
  .article-row{ padding:32px 0; border-top:1px solid var(--line); display:flex; flex-direction:column; gap:10px; }
  .article-list .article-row:first-child{ border-top:none; padding-top:0; }
  .article-row h3{ font-size:21px; line-height:1.35; }
  .article-row h3 a:hover{ color:var(--accent); }
  .article-row .desc{ color:var(--ink-soft); font-size:15px; max-width:68ch; margin:0; }
  .article-row .view-all{ width:fit-content; }

  @media (max-width:768px){
    .page-hero{ padding:48px 0 4px; }
  }
  @media (max-width:480px){
    .page-hero{ padding:36px 0 4px; }
    .page-hero .desc{ font-size:15.5px; }
    .article-row{ padding:24px 0; }
    .article-row h3{ font-size:18.5px; }
  }

  /* ---------- Article / Post page ---------- */
  .post{ max-width:824px; margin:0 auto; padding:56px 32px 100px; }

  .post-hero{ margin-bottom:8px; }
  .post-title{
    font-family:var(--serif); font-weight:600; color:var(--ink);
    font-size:clamp(28px,4.2vw,42px); line-height:1.2; letter-spacing:-.01em; margin-top:14px;
  }
  .post-meta{
    font-family:var(--mono); font-size:12.5px; color:var(--ink-faint);
    line-height:1.8; margin-top:16px;
  }

  .post-cover{
    margin:32px 0; border-radius:14px; overflow:hidden;
    border:1px solid var(--line); background:var(--bg-subtle);
  }
  .post-cover img{ width:100%; display:block; }

  .post-callout{
    background:var(--bg-subtle); border:1px solid var(--line); border-left:3px solid var(--accent);
    border-radius:var(--radius); padding:24px 28px; margin:0 0 44px;
  }
  .post-callout p{ margin:0 0 14px; font-size:16.5px; color:var(--ink); }
  .post-callout p:last-child{ margin-bottom:0; }

  /* Body typography — governs every element inside an article */
  .post-body{ font-size:16.5px; line-height:1.75; color:var(--ink); }
  .post-body h2{
    font-family:var(--serif); font-weight:600; color:var(--ink);
    font-size:clamp(22px,2.6vw,28px); line-height:1.3; margin:52px 0 16px;
  }
  .post-body h2:first-child{ margin-top:0; }
  .post-body h3{
    font-family:var(--serif); font-weight:600; color:var(--ink);
    font-size:19px; line-height:1.35; margin:34px 0 12px;
  }
  .post-body p{ margin:0 0 20px; }
  .post-body ul, .post-body ol{ margin:0 0 20px; padding-left:22px; }
  .post-body li{ margin-bottom:10px; }
  .post-body li:last-child{ margin-bottom:0; }
  .post-body li > ul, .post-body li > ol{ margin-top:10px; margin-bottom:0; }
  .post-body strong{ font-weight:600; color:var(--ink); }
  .post-body a{
    color:var(--accent); text-decoration:underline; text-decoration-color:var(--line); text-underline-offset:3px;
  }
  .post-body a:hover{ text-decoration-color:var(--accent); }
  .post-body code{
    font-family:var(--mono); font-size:.88em; background:var(--accent-soft);
    color:var(--accent); padding:2px 6px; border-radius:4px;
  }
  .post-body blockquote{
    margin:28px 0; padding:2px 0 2px 20px; border-left:3px solid var(--accent);
    color:var(--ink-soft); font-family:var(--serif); font-style:italic; font-size:18px;
  }

  /* Code / JSON blocks — styled like an IDE editor pane */
  .post-code{
    background:#1c1f26; border-radius:var(--radius);
    margin:0 0 28px; overflow:hidden;
  }
  .post-code-header{
    display:flex; align-items:center; gap:6px; padding:12px 16px;
    background:rgba(255,255,255,.05); border-bottom:1px solid rgba(255,255,255,.08);
  }
  .post-code-dot{ width:10px; height:10px; border-radius:50%; flex:none; }
  .post-code-dot:nth-child(1){ background:#ff5f56; }
  .post-code-dot:nth-child(2){ background:#ffbd2e; }
  .post-code-dot:nth-child(3){ background:#27c93f; }
  .post-code pre{
    margin:0; padding:18px 22px; overflow-x:auto;
    font-family:var(--mono); font-size:13.5px; line-height:1.65; color:#d8dae0; white-space:pre;
  }
  .post-code code{ background:none; padding:0; color:inherit; font-size:1em; }

  /* Image captions under a .post-cover */
  .post-caption{
    text-align:center; font-family:var(--mono); font-size:12px;
    color:var(--ink-faint); margin-top:10px;
  }

  /* Panels — summary / reference / output boxes, distinct from callouts */
  .post-panel{
    border:1px solid var(--line); border-radius:var(--radius);
    padding:22px 26px; margin:0 0 28px; background:var(--bg-subtle);
  }
  .post-panel--accent{ background:var(--accent-soft); border-color:transparent; }
  .post-panel-title{
    font-family:var(--mono); font-size:11.5px; font-weight:500; text-transform:uppercase;
    letter-spacing:.05em; color:var(--accent); margin:0 0 10px;
  }
  .post-panel p{ margin:0; }
  .post-panel p + p{ margin-top:10px; }

  /* Step headings within a walkthrough */
  .post-step-title{
    font-family:var(--serif); font-weight:600; color:var(--ink);
    font-size:19px; line-height:1.35; margin:34px 0 12px;
  }

  /* Divider inside article body */
  .post-body hr{ border:none; border-top:1px solid var(--line); margin:44px 0; }

  /* Tables — same design across every article */
  .post-body table{ width:100%; border-collapse:collapse; margin:0 0 28px; font-size:14.5px; }
  .post-body th, .post-body td{ padding:10px 14px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top; }
  .post-body th{
    font-family:var(--mono); font-size:11.5px; font-weight:500; text-transform:uppercase;
    letter-spacing:.04em; color:var(--ink-faint); border-bottom:2px solid var(--ink);
  }
  .post-body tr:last-child td{ border-bottom:none; }
  .post-body td code{ font-size:12.5px; }

  .post-back{
    display:inline-flex; align-items:center; gap:6px; width:100%;
    font-family:var(--mono); font-size:13px; color:var(--accent);
    border-top:1px solid var(--line); padding-top:22px; margin-top:8px;
  }
  .post-back:hover{ color:#1c3372; }

  @media (max-width:768px){
    .post{ padding:40px 24px 72px; }
  }
  @media (max-width:640px){
    .post-body table{ display:block; overflow-x:auto; white-space:nowrap; }
  }
  @media (max-width:480px){
    .post{ padding:28px 18px 56px; }
    .post-body{ font-size:15.5px; }
    .post-callout{ padding:18px 20px; }
    .post-callout p{ font-size:15.5px; }
    .post-code-header{ padding:10px 14px; }
    .post-code pre{ padding:14px 16px; font-size:12.5px; }
    .post-panel{ padding:18px 20px; }
    .post-cover{ margin:24px 0; border-radius:10px; }
    .post-body h2{ margin:40px 0 14px; }
    .post-body h3{ margin:28px 0 10px; }
  }

  /* ---------- Small-screen global refinements ---------- */
  @media (max-width:480px){
    body{ font-size:15px; }
    .eyebrow{ font-size:11px; }
  }