:root{
  --darkgrey:#0f172a;
  --midgrey:#475569;
  --lightgrey:#f1f5f9;
  --secondary-text:#64748b;
  --border:#e2e8f0;
  --accent:#2563eb;
  --accent-strong:#1d4ed8;
  --font-sans:"Hanken Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:"JetBrains Mono", Menlo, monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;font-size:62.5%;}
body{
  margin:0;color:var(--darkgrey);background:#fff;
  font-family:var(--font-sans);font-size:1.6rem;line-height:1.7;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:var(--accent);text-decoration:none;}
img{max-width:100%;display:block;}
[id]{scroll-margin-top:92px;}
:is(a,button,summary):focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:2px;}

.outer{padding:0 max(4%,24px);}
.inner{margin:0 auto;max-width:760px;width:100%;}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}

/* ---------- reading progress ---------- */
#reading-progress{
  position:fixed;top:0;left:0;height:3px;width:0%;
  background:var(--accent);z-index:200;transition:width .1s ease-out;
}

/* ---------- header ---------- */
header.site-head{
  position:sticky;top:0;z-index:150;height:72px;
  background:rgba(255,255,255,0.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(226,232,240,0.6);
}
.head-inner{display:flex;align-items:center;justify-content:space-between;height:100%;}
.head-logo{font-weight:700;font-size:2rem;letter-spacing:-0.025em;color:var(--darkgrey);}
nav.head-nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;}
nav.head-nav a{
  display:inline-block;padding:8px 16px;border-radius:8px;
  font-weight:500;font-size:1.5rem;letter-spacing:-0.01em;color:var(--darkgrey);
}
nav.head-nav a:hover{background:rgba(37,99,235,0.08);}
nav.head-nav a[aria-current="page"]{color:var(--accent);font-weight:700;background:rgba(37,99,235,0.08);}
.head-burger{display:none;width:44px;height:44px;padding:0;border:0;background:transparent;cursor:pointer;position:relative;}
.head-burger span{
  position:absolute;left:11px;right:11px;height:2px;background:var(--darkgrey);
  transition:transform .2s ease, opacity .2s ease;
}
.head-burger span:nth-child(1){top:16px;}
.head-burger span:nth-child(2){top:22px;}
.head-burger span:nth-child(3){top:28px;}
body.nav-open .head-burger span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .head-burger span:nth-child(2){opacity:0;}
body.nav-open .head-burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- hero ---------- */
.hero{padding:72px max(4%,24px) 64px;position:relative;overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background:radial-gradient(ellipse 80% 60% at 70% 50%, rgba(37,99,235,0.055) 0%, transparent 70%);
  pointer-events:none;
}
.hero-bg::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle, rgba(37,99,235,0.12) 1px, transparent 1px);
  background-size:28px 28px;mask-image:radial-gradient(ellipse 60% 70% at 80% 50%, black 0%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse 60% 70% at 80% 50%, black 0%, transparent 70%);
}
.hero .inner{max-width:920px;}
.hero-inner{position:relative;display:flex;flex-direction:row-reverse;align-items:center;justify-content:space-between;gap:48px;flex-wrap:wrap;}
.hero-content{max-width:640px;}
.hero-photo{
  width:260px;height:260px;border-radius:50%;object-fit:cover;flex-shrink:0;
  border:1px solid rgba(0,0,0,0.06);box-shadow:0 20px 40px -20px rgba(37,99,235,0.25);
  align-self:flex-start;margin-top:-24px;
}

@media (max-width:1024px){
  .hero .inner{max-width:640px;}
  .hero-inner{flex-direction:column;align-items:center;text-align:center;gap:28px;}
  .hero-content{max-width:100%;}
  .hero-photo{align-self:center;margin-top:0;width:200px;height:200px;}
  .hero-description{margin-left:auto;margin-right:auto;}
  .hero-action{justify-content:center;}
  .hero-stack{justify-content:center;}
}
.hero-availability{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:24px;flex-wrap:wrap;
  padding:7px 14px;font-size:1.35rem;font-weight:600;color:var(--accent-strong);
  background:rgba(37,99,235,0.08);border:1px solid rgba(37,99,235,0.2);border-radius:999px;
  max-width:100%;
}
.hero-availability .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;flex-shrink:0;animation:pulse-dot 2s ease infinite;}
@keyframes pulse-dot{0%,100%{opacity:1;}50%{opacity:.55;}}
.hero-tagline{
  margin:0 0 20px;font-weight:900;line-height:1.08;letter-spacing:-0.04em;
  font-size:clamp(3rem,6.5vw,5.6rem);color:var(--darkgrey);max-width:18ch;
}
.hero-description{font-size:1.9rem;line-height:1.65;color:var(--midgrey);max-width:560px;margin:0;}
.hero-action{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap;align-items:center;}
.hero-stack{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:32px;
}
.stack-tag{
  font-family:var(--font-mono);font-size:1.2rem;font-weight:500;
  color:var(--secondary-text);background:var(--lightgrey);
  border:1px solid var(--border);padding:4px 12px;border-radius:6px;
  transition:color .15s, background .15s, border-color .15s;
}
.stack-tag:hover{color:var(--accent);border-color:rgba(37,99,235,0.3);background:rgba(37,99,235,0.05);}

.page-hero{padding:56px max(4%,24px) 40px;}
.page-eyebrow{
  font-family:var(--font-mono);font-size:1.3rem;letter-spacing:0.06em;text-transform:uppercase;
  color:var(--accent-strong);margin:0 0 14px;
}
.page-title{
  margin:0 0 18px;font-weight:900;letter-spacing:-0.035em;line-height:1.1;
  font-size:clamp(2.4rem,5vw,4.2rem);color:var(--darkgrey);
}
.page-lede{font-size:1.9rem;line-height:1.6;color:var(--midgrey);max-width:640px;margin:0;}

.profile-photo{
  width:160px;height:160px;border-radius:50%;object-fit:cover;
  margin:0 0 28px;display:block;border:1px solid rgba(0,0,0,0.06);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 26px;
  font-weight:600;font-size:1.6rem;border-radius:999px;transition:background .15s ease,box-shadow .15s ease;
}
.btn-primary{color:#fff;background:var(--accent);box-shadow:0 8px 24px rgba(37,99,235,0.28);}
.btn-primary:hover{background:var(--accent-strong);box-shadow:0 12px 28px rgba(37,99,235,0.35);}
.btn-outline{color:var(--darkgrey);background:transparent;border:1.5px solid var(--border);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- section / feed ---------- */
.section{margin-top:8px;padding:48px max(4%,24px) 72px;}
.section.tight{padding-top:0;}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap;}
.section-title{margin:0;font-size:2.4rem;font-weight:800;letter-spacing:-0.025em;}
.section-link{font-size:1.4rem;font-weight:600;white-space:nowrap;}

.post-card{padding:24px 0;border-top:1px solid var(--border);}
.post-feed .post-card:last-child{border-bottom:1px solid var(--border);}
.chip-list{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 10px;padding:0;list-style:none;}
.chip{
  display:inline-flex;align-items:center;padding:4px 14px;font-size:1.3rem;font-weight:600;
  color:var(--accent-strong);background:rgba(37,99,235,0.1);border-radius:999px;
}
.post-card-meta{display:flex;align-items:center;gap:6px;margin-bottom:8px;font-size:1.3rem;color:var(--secondary-text);}
.post-card-title{margin:0;font-size:2rem;font-weight:700;line-height:1.3;color:var(--darkgrey);}
.post-card-title a{color:inherit;}
.post-card-title a:hover{color:var(--accent);}
.post-card-excerpt{margin-top:10px;max-width:680px;font-size:1.6rem;line-height:1.55;color:var(--midgrey);}

.filter-list{margin-bottom:28px;}
.filter-chip{
  border:1px solid transparent;cursor:pointer;font-family:inherit;line-height:1.2;
  transition:background .15s ease,color .15s ease,border-color .15s ease;
}
.filter-chip:hover{border-color:var(--accent-strong);}
.filter-chip.is-active{color:#fff;background:var(--accent-strong);}
.post-feed-empty{margin-top:16px;font-size:1.5rem;color:var(--secondary-text);}

/* ---------- services ---------- */
.service-grid{display:flex;flex-direction:column;}
.service-card{
  display:grid;grid-template-columns:56px 1fr auto;gap:20px;align-items:flex-start;
  padding:28px 0;border-top:1px solid var(--border);
}
.service-grid .service-card:last-child{border-bottom:1px solid var(--border);}
.service-icon{
  width:52px;height:52px;border-radius:14px;background:rgba(37,99,235,0.08);
  display:flex;align-items:center;justify-content:center;color:var(--accent);flex-shrink:0;
}
.service-title{margin:0 0 8px;font-size:2.1rem;font-weight:700;letter-spacing:-0.01em;}
.service-desc{margin:0;font-size:1.55rem;line-height:1.6;color:var(--midgrey);max-width:60ch;}
.service-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;}
.service-tag{
  font-family:var(--font-mono);font-size:1.15rem;color:var(--secondary-text);
  border:1px solid var(--border);padding:3px 9px;border-radius:6px;
}
.service-cta{align-self:center;white-space:nowrap;font-size:1.4rem;font-weight:600;}

.process-list{counter-reset:step;display:flex;flex-direction:column;gap:0;margin-top:8px;}
.process-item{
  counter-increment:step;position:relative;padding:20px 0 20px 52px;border-top:1px solid var(--border);
}
.process-list .process-item:last-child{border-bottom:1px solid var(--border);}
.process-item::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:20px;font-family:var(--font-mono);font-size:1.3rem;
  font-weight:600;color:var(--accent);
}
.process-item h3{margin:0 0 6px;font-size:1.75rem;font-weight:700;}
.process-item p{margin:0;color:var(--midgrey);font-size:1.5rem;line-height:1.6;max-width:60ch;}

/* ---------- article / blog post ---------- */
.breadcrumbs{margin:0 0 16px;}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:0;padding:0;list-style:none;font-size:1.3rem;color:var(--secondary-text);}
.breadcrumb-item a{color:var(--secondary-text);}
.article{padding:48px max(4%,24px) 72px;}
.article-title{
  margin:0 0 0;font-weight:800;letter-spacing:-0.025em;line-height:1.12;
  font-size:clamp(3rem,5vw,4.6rem);color:var(--darkgrey);
}
.article-meta-row{display:flex;align-items:center;gap:14px;margin-top:20px;font-size:1.35rem;color:var(--secondary-text);}
.article-excerpt{margin-top:24px;font-size:2rem;font-weight:500;line-height:1.55;color:var(--secondary-text);max-width:680px;}
.article-excerpt::before{content:"";display:block;width:44px;height:3px;margin-bottom:12px;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent-strong));}
.article-body{margin-top:44px;max-width:680px;}
.article-body > * + *{margin-top:22px;}
.article-body h2{font-size:2.2rem;font-weight:800;letter-spacing:-0.015em;margin-top:48px;}
.article-body h3{font-size:1.85rem;font-weight:700;margin-top:36px;}
.article-body p{font-size:1.65rem;line-height:1.75;color:var(--darkgrey);}
.article-body ul{padding-left:22px;font-size:1.6rem;line-height:1.7;color:var(--darkgrey);}
.article-body li + li{margin-top:8px;}
.article-body blockquote{
  margin:0;padding-left:20px;border-left:3px solid var(--accent);color:var(--midgrey);font-style:italic;font-size:1.7rem;
}

/* ---------- article body: tables, links, hr, strong ---------- */
.article-body a:not(.btn){color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.article-body a:not(.btn):hover{color:var(--accent-strong);}
.article-body strong{font-weight:700;color:var(--darkgrey);}
.article-body em{font-style:italic;}
.article-body hr{border:none;border-top:1px solid var(--border);margin:40px 0;}

.article-body table{
  width:100%;border-collapse:collapse;font-size:1.5rem;margin:28px 0;
  border-radius:10px;overflow:hidden;border:1px solid var(--border);
}
.article-body th{
  background:var(--lightgrey);text-align:left;padding:11px 16px;
  font-weight:700;font-size:1.35rem;color:var(--darkgrey);
  border-bottom:1px solid var(--border);letter-spacing:0.01em;
}
.article-body td{
  padding:11px 16px;border-bottom:1px solid var(--border);
  color:var(--darkgrey);vertical-align:top;line-height:1.55;
}
.article-body tr:last-child td{border-bottom:none;}
.article-body tr:nth-child(even) td{background:rgba(241,245,249,0.55);}

/* ---------- inline code ---------- */
.article-body :not(pre) > code{
  font-family:var(--font-mono);font-size:0.875em;
  background:#f1f5f9;color:#0f172a;
  padding:2px 7px;border-radius:5px;
  border:1px solid #e2e8f0;
  white-space:nowrap;
}

/* ---------- code block container (fenced blocks only — div, not inline spans) ---------- */
.article-body div.highlighter-rouge{
  position:relative;margin:32px 0;
  border-radius:12px;overflow:hidden;
  border:1px solid rgba(255,255,255,0.07);
  background:#0d1117;
  box-shadow:0 4px 24px rgba(0,0,0,0.18);
}

/* language label */
.article-body div.highlighter-rouge[data-lang]::before{
  content:attr(data-lang);
  position:absolute;top:0;left:0;
  padding:5px 14px;font-family:var(--font-mono);font-size:1.1rem;font-weight:600;
  color:#7d8590;background:rgba(255,255,255,0.04);
  border-bottom-right-radius:8px;
  text-transform:uppercase;letter-spacing:0.06em;
  pointer-events:none;z-index:1;
}

/* copy button */
.code-copy-btn{
  position:absolute;top:8px;right:10px;
  padding:4px 12px;font-family:var(--font-mono);font-size:1.15rem;font-weight:500;
  color:#7d8590;background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);border-radius:6px;
  cursor:pointer;transition:color .15s,background .15s,border-color .15s;
  z-index:2;line-height:1.6;
}
.code-copy-btn:hover{color:#e2e8f0;background:rgba(255,255,255,0.11);border-color:rgba(255,255,255,0.22);}
.code-copy-btn.copied{color:#4ade80;border-color:rgba(74,222,128,0.3);background:rgba(74,222,128,0.06);}

/* pre / code inside block */
.article-body div.highlighter-rouge .highlight{background:transparent;}
.article-body div.highlighter-rouge .highlight pre{
  margin:0;padding:20px 20px 18px;overflow-x:auto;
  background:transparent;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;scrollbar-color:#2d3748 transparent;
}
.article-body div.highlighter-rouge[data-lang] .highlight pre{padding-top:38px;}
.article-body div.highlighter-rouge .highlight pre::-webkit-scrollbar{height:5px;}
.article-body div.highlighter-rouge .highlight pre::-webkit-scrollbar-thumb{background:#2d3748;border-radius:4px;}
.article-body div.highlighter-rouge .highlight code{
  font-family:var(--font-mono);font-size:1.35rem;line-height:1.72;
  color:#e6edf3;background:transparent;border:none;padding:0;
  white-space:pre;display:block;
}

/* ---------- rouge syntax token colours (dark / github-dark inspired) ---------- */
/* Comments */
.highlight .c,.highlight .c1,.highlight .cm,.highlight .cp,.highlight .cs,.highlight .cd{color:#7d8590;font-style:italic;}
/* Keywords: class, function, public, private, return, if, foreach, match … */
.highlight .k,.highlight .kr,.highlight .kn,.highlight .kp,.highlight .kd{color:#ff7b72;}
/* Keyword type: int, string, bool, array, void … */
.highlight .kt{color:#ffa657;}
/* Class / type names */
.highlight .nc,.highlight .nn{color:#ffa657;}
/* Function / method names */
.highlight .nf,.highlight .fm{color:#d2a8ff;}
/* Strings */
.highlight .s,.highlight .s1,.highlight .s2,.highlight .sb,.highlight .sc,.highlight .sd,.highlight .sh,.highlight .sr,.highlight .ss,.highlight .sx{color:#a5d6ff;}
/* String interpolation / heredoc sigil */
.highlight .si,.highlight .se{color:#79c0ff;}
/* Numbers */
.highlight .m,.highlight .mb,.highlight .mf,.highlight .mh,.highlight .mi,.highlight .mo,.highlight .il{color:#79c0ff;}
/* Variables: $var in PHP */
.highlight .nv,.highlight .vi,.highlight .vc,.highlight .vg{color:#ffa657;}
/* Constants / named constants */
.highlight .no{color:#79c0ff;}
/* Operators */
.highlight .o,.highlight .ow{color:#ff7b72;}
/* Punctuation */
.highlight .p{color:#e6edf3;}
/* Attributes / decorators */
.highlight .na,.highlight .nd{color:#d2a8ff;}
/* Builtins */
.highlight .nb{color:#c9d1d9;}
/* Tags (SQL keywords, HTML) */
.highlight .nt{color:#7ee787;}
/* Name other (often type-hint in PHP) */
.highlight .nx{color:#c9d1d9;}
/* Generic output / lineno */
.highlight .go{color:#7d8590;}
.highlight .lineno{color:#4d5566;user-select:none;padding-right:16px;}
/* Error */
.highlight .err{color:#ff7b72;background:rgba(255,123,114,0.1);}

.article-share{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--border);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.share-btn{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;font-size:1.35rem;font-weight:600;
  border:1px solid var(--border);border-radius:999px;color:var(--darkgrey);background:#fff;
}
.share-btn:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- footer ---------- */
footer.site-footer{border-top:1px solid var(--border);padding:40px max(4%,24px);}
.footer-contact-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-bottom:24px;}
.footer-contact-link{display:inline-flex;align-items:center;gap:7px;font-size:1.4rem;font-weight:500;color:var(--darkgrey);}
.footer-contact-link:hover{color:var(--accent);}
.copyright{font-size:1.3rem;color:var(--secondary-text);}

/* ---------- back to top ---------- */
.back-to-top{
  position:fixed;right:24px;bottom:24px;z-index:120;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--border);
  background:#fff;color:var(--darkgrey);display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(15,23,42,0.12);cursor:pointer;
}
.back-to-top:hover{border-color:var(--accent);color:var(--accent);}
.back-to-top[hidden]{display:none;}

@media (max-width:767px){
  /* Remove backdrop-filter so position:fixed on the nav uses the viewport as its containing block */
  header.site-head{backdrop-filter:none;-webkit-backdrop-filter:none;background:#fff;}

  /* Mobile nav — full-screen overlay below the header */
  nav.head-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    background:#fff;visibility:hidden;opacity:0;
    transition:opacity .2s ease,visibility .2s ease;
    padding:24px;z-index:149;overflow-y:auto;
  }
  body.nav-open nav.head-nav{visibility:visible;opacity:1;}
  body.nav-open{overflow:hidden;}
  nav.head-nav ul{flex-direction:column;gap:4px;}
  nav.head-nav a{font-size:2rem;padding:12px 14px;display:block;}

  .head-burger{display:block;}

  /* Hero */
  .hero{padding:40px max(4%,20px) 36px;}
  .hero-bg::before{display:none;}
  .hero-action{flex-direction:column;align-items:stretch;}
  .hero-action .btn{width:100%;justify-content:center;}
  .hero-tagline{font-size:clamp(3rem,8vw,4rem);}
  .hero-description{font-size:1.7rem;}

  /* Page sections */
  .page-hero{padding:32px max(4%,20px) 28px;}
  .page-title{font-size:clamp(2.2rem,7vw,3.6rem);}

  /* Services */
  .service-card{grid-template-columns:44px 1fr;gap:14px;}
  .service-cta{grid-column:2;}

  /* Article body */
  .article-title{font-size:clamp(2.4rem,7vw,4rem);}
  .article-excerpt{font-size:1.7rem;}
  .article-body h2{font-size:1.9rem;}
  .article-body h3{font-size:1.7rem;}
  .article-body p,.article-body li{font-size:1.55rem;}

  /* Tables — horizontal scroll on small screens */
  .article-body table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:nowrap;}
  .article-body th,.article-body td{white-space:normal;min-width:100px;}

  /* Code blocks — no negative margin on mobile */
  .article-body div.highlighter-rouge{margin:20px 0;border-radius:8px;}
  .article-body div.highlighter-rouge .highlight pre{padding:16px;font-size:1.25rem;}
  .article-body div.highlighter-rouge[data-lang] .highlight pre{padding-top:34px;}
  .article-body div.highlighter-rouge .highlight code{font-size:1.25rem;}

  /* Footer */
  .footer-contact-row{gap:8px 16px;}
}