/* Fokusgate — single stylesheet, no build step */
:root{
  --bg:#0b0f17; --bg-2:#111827; --surface:#141c2b; --border:#233047;
  --text:#e6ebf3; --muted:#9aa7bb; --accent:#38bdf8; --accent-2:#22d3ee; --accent-ink:#04121c;
  --ok:#34d399; --warn:#fbbf24;
  --radius:14px; --maxw:1120px;
  --shadow:0 1px 0 rgba(255,255,255,.04) inset, 0 10px 30px -12px rgba(0,0,0,.6);
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"Cascadia Code",Menlo,Consolas,monospace;
  color-scheme:dark;
}
@media (prefers-color-scheme:light){
  :root:not([data-theme="dark"]){
    --bg:#f7f9fc; --bg-2:#eef2f8; --surface:#ffffff; --border:#dbe3ee;
    --text:#0f172a; --muted:#51607a; --accent:#0369a1; --accent-2:#0891b2; --accent-ink:#ffffff;
    --shadow:0 1px 2px rgba(15,23,42,.05), 0 8px 24px -14px rgba(15,23,42,.18);
    color-scheme:light;
  }
}
:root[data-theme="light"]{
  --bg:#f7f9fc; --bg-2:#eef2f8; --surface:#ffffff; --border:#dbe3ee;
  --text:#0f172a; --muted:#51607a; --accent:#0369a1; --accent-2:#0891b2; --accent-ink:#ffffff;
  --shadow:0 1px 2px rgba(15,23,42,.05), 0 8px 24px -14px rgba(15,23,42,.18);
  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;font-size:1.0625rem;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent-2)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
h1,h2,h3{line-height:1.2;letter-spacing:-.02em;margin:0 0 .6em}
h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:750}
h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700}
h3{font-size:1.15rem;font-weight:650}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-ink);padding:.6rem 1rem;z-index:100;border-radius:0 0 8px 0}
.skip:focus{left:0}
.muted{color:var(--muted)}
.eyebrow{font-family:var(--mono);font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:.8rem;display:inline-block}

/* Header */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);
  background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:1rem}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:700;color:var(--text);text-decoration:none;letter-spacing:-.01em}
.brand svg{width:28px;height:28px}
.nav-links{display:flex;align-items:center;gap:1.4rem;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--muted);text-decoration:none;font-size:.95rem}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--text)}
.theme-toggle{background:transparent;border:1px solid var(--border);color:var(--muted);width:36px;height:36px;border-radius:10px;cursor:pointer;display:grid;place-items:center}
.theme-toggle:hover{color:var(--text)}
.theme-toggle svg{width:18px;height:18px}
.nav-right{display:flex;align-items:center;gap:.75rem}
@media (max-width:760px){.nav-links .hide-sm{display:none}.nav-links{gap:1rem}}

/* Buttons — the only CTA is "Contact me" */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.25rem;border-radius:999px;font-weight:650;text-decoration:none;border:1px solid transparent;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease;font-size:1rem;line-height:1}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink)}
.btn-primary:hover{color:var(--accent-ink);transform:translateY(-1px);box-shadow:0 10px 24px -10px var(--accent)}
.btn-sm{padding:.55rem .95rem;font-size:.9rem}
.btn svg{width:18px;height:18px}

/* Hero */
.hero{position:relative;padding:clamp(4rem,10vw,7.5rem) 0 clamp(3.5rem,8vw,6rem);overflow:hidden}
.hero::before{content:"";position:absolute;inset:-30% -10% auto auto;width:720px;height:720px;
  background:radial-gradient(closest-side,color-mix(in srgb,var(--accent) 22%,transparent),transparent 70%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:48px 48px;mask-image:radial-gradient(ellipse at 30% 20%,#000 0%,transparent 65%);-webkit-mask-image:radial-gradient(ellipse at 30% 20%,#000 0%,transparent 65%)}
.hero .container{position:relative;z-index:1}
.hero h1 .grad{background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:clamp(1.1rem,2vw,1.3rem);color:var(--muted);max-width:44rem;margin-bottom:2rem}
.hero-meta{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:2.25rem;padding:0;list-style:none}
.chip{display:inline-flex;align-items:center;gap:.45rem;font-size:.85rem;color:var(--muted);border:1px solid var(--border);background:color-mix(in srgb,var(--surface) 70%,transparent);padding:.35rem .75rem;border-radius:999px}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px color-mix(in srgb,var(--ok) 25%,transparent)}

/* Sections */
section{scroll-margin-top:80px}
.section{padding:clamp(3.5rem,8vw,6rem) 0;border-top:1px solid var(--border)}
.section-head{max-width:46rem;margin-bottom:2.5rem}
.section-head p{color:var(--muted)}
.grid{display:grid;gap:1.1rem}
.grid-3{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.grid-2{grid-template-columns:repeat(auto-fill,minmax(340px,1fr))}
@media (max-width:400px){.grid-3,.grid-2{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);transition:border-color .2s ease,transform .2s ease}
.card:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--border))}
.card h3{margin-bottom:.45rem}
.card p{color:var(--muted);margin:0;font-size:.98rem}
.icon{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;margin-bottom:1rem;
  background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent)}
.icon svg{width:22px;height:22px}
.tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:1rem;padding:0;list-style:none}
.tags li{font-family:var(--mono);font-size:.75rem;color:var(--muted);background:var(--bg-2);border:1px solid var(--border);padding:.15rem .5rem;border-radius:6px}

/* Certifications */
.cert-list{list-style:none;padding:0;margin:0;display:grid;gap:.8rem;grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
@media (max-width:400px){.cert-list{grid-template-columns:1fr}}
.cert{display:flex;gap:1rem;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 1.25rem}
.cert .badge{flex:none;font-family:var(--mono);font-size:.72rem;font-weight:700;letter-spacing:.04em;padding:.3rem .5rem;border-radius:7px;
  color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 40%,transparent);background:color-mix(in srgb,var(--accent) 10%,transparent);min-width:62px;text-align:center}
.cert strong{display:block;font-weight:620;line-height:1.35}
.cert span.sub{color:var(--muted);font-size:.88rem}

/* How I work */
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:1.1rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.steps li::before{content:"0" counter(s);font-family:var(--mono);color:var(--accent);font-size:.85rem;display:block;margin-bottom:.6rem}
.steps p{color:var(--muted);margin:0;font-size:.98rem}
.facts{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:2rem;padding:0;list-style:none}

/* Contact */
.contact{background:linear-gradient(180deg,transparent,color-mix(in srgb,var(--accent) 7%,transparent))}
.contact-card{display:grid;grid-template-columns:1.2fr 1fr;gap:2rem;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:clamp(1.5rem,4vw,3rem);box-shadow:var(--shadow)}
@media (max-width:820px){.contact-card{grid-template-columns:1fr}}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:.75rem}
.contact-list a{display:flex;align-items:center;gap:.8rem;padding:.85rem 1rem;border:1px solid var(--border);border-radius:12px;color:var(--text);text-decoration:none;background:var(--bg-2);word-break:break-word}
.contact-list a:hover{border-color:var(--accent)}
.contact-list svg{width:20px;height:20px;color:var(--accent);flex:none}
.contact-list small{display:block;color:var(--muted);font-size:.78rem;line-height:1.2}

/* Blog */
.page-head{padding:clamp(3rem,7vw,5rem) 0 2rem}
.post-list{list-style:none;padding:0;margin:0;display:grid;gap:1rem}
.post-item a{display:block;text-decoration:none;color:inherit}
.post-item .card h2{font-size:1.3rem;margin:.3rem 0 .5rem;color:var(--text)}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;font-size:.85rem;color:var(--muted)}
.draft-badge{display:inline-block;font-family:var(--mono);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:#1a1200;background:var(--warn);padding:.15rem .5rem;border-radius:6px}
.draft-note{border:1px dashed var(--warn);background:color-mix(in srgb,var(--warn) 10%,transparent);border-radius:12px;padding:.9rem 1.1rem;margin:0 0 2rem;font-size:.95rem}
.article{max-width:46rem;margin:0 auto;padding-bottom:4rem}
.article h1{font-size:clamp(1.9rem,4vw,2.7rem)}
.article h2{font-size:1.5rem;margin-top:2.4rem}
.article h3{margin-top:1.8rem}
.article ul,.article ol{padding-left:1.3rem}
.article li{margin:.3rem 0}
.article code{font-family:var(--mono);font-size:.88em;background:var(--bg-2);border:1px solid var(--border);padding:.08rem .35rem;border-radius:5px}
.article pre{background:var(--bg-2);border:1px solid var(--border);border-radius:12px;padding:1rem 1.1rem;overflow:auto;font-size:.86rem;line-height:1.55}
.article pre code{background:none;border:0;padding:0}
.article table{width:100%;border-collapse:collapse;font-size:.94rem;margin:1rem 0 1.5rem;display:block;overflow-x:auto}
.article th,.article td{border:1px solid var(--border);padding:.55rem .7rem;text-align:left;vertical-align:top}
.article th{background:var(--bg-2)}
.callout{border-left:3px solid var(--accent);background:var(--bg-2);padding:.9rem 1.1rem;border-radius:0 10px 10px 0;margin:1.5rem 0}
.back{display:inline-block;margin-bottom:1.5rem;font-size:.92rem;text-decoration:none}
.article-cta{margin-top:3rem;padding:1.5rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between}
.article-cta p{margin:0}

/* Footer */
.site-footer{border-top:1px solid var(--border);padding:2rem 0;color:var(--muted);font-size:.9rem}
.site-footer .container{display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center}
.site-footer a{color:var(--muted)}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;gap:1.2rem}