/* ---------- Tokens ---------- */
:root{
  --bg:#f7f8fb; --bg-2:#ffffff; --surface:#ffffff; --surface-2:#f0f3f9;
  --text:#0d1424; --muted:#4f5b72; --faint:#8a94a8;
  --line:rgba(13,20,36,.09); --line-2:rgba(13,20,36,.16);
  --accent:#2557e0; --accent-2:#3d7bff; --accent-soft:rgba(37,87,224,.09);
  --ok:#11845b; --glow:rgba(61,123,255,.18);
  --shadow:0 1px 2px rgba(13,20,36,.04),0 8px 28px -12px rgba(13,20,36,.14);
  --radius:16px; --maxw:1120px;
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#080c16; --bg-2:#0b1120; --surface:#0f1628; --surface-2:#141d33;
  --text:#e8ecf5; --muted:#9ba6bd; --faint:#6b7690;
  --line:rgba(232,236,245,.08); --line-2:rgba(232,236,245,.15);
  --accent:#6b9bff; --accent-2:#8fb4ff; --accent-soft:rgba(107,155,255,.12);
  --ok:#3fd39a; --glow:rgba(61,123,255,.28);
  --shadow:0 1px 2px rgba(0,0,0,.3),0 12px 40px -16px rgba(0,0,0,.6);
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#080c16; --bg-2:#0b1120; --surface:#0f1628; --surface-2:#141d33;
    --text:#e8ecf5; --muted:#9ba6bd; --faint:#6b7690;
    --line:rgba(232,236,245,.08); --line-2:rgba(232,236,245,.15);
    --accent:#6b9bff; --accent-2:#8fb4ff; --accent-soft:rgba(107,155,255,.12);
    --ok:#3fd39a; --glow:rgba(61,123,255,.28);
    --shadow:0 1px 2px rgba(0,0,0,.3),0 12px 40px -16px rgba(0,0,0,.6);
    color-scheme:dark;
  }
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.6;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:12px}
.mono{font-family:var(--mono)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);
  background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand img{width:30px;height:30px}
.nav-links{display:flex;gap:4px;margin-left:auto;list-style:none;padding:0;margin-top:0;margin-bottom:0}
.nav-links a{color:var(--muted);font-size:15px;padding:6px 10px;border-radius:8px}
.nav-links a:hover{color:var(--text);background:var(--surface-2);text-decoration:none}
.controls{display:flex;gap:6px;align-items:center}
.ctl{appearance:none;border:1px solid var(--line-2);background:var(--surface);color:var(--text);height:34px;min-width:34px;padding:0 10px;
  border-radius:9px;font:600 13px/1 var(--font);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.ctl:hover{border-color:var(--accent)}
.lang{padding:0 4px}
.lang span{padding:5px 6px;border-radius:6px;color:var(--faint)}
.lang span[aria-current="true"]{background:var(--accent-soft);color:var(--accent)}
.ctl svg{width:16px;height:16px}
.icon-sun{display:none}
:root[data-theme="dark"] .icon-sun{display:block} :root[data-theme="dark"] .icon-moon{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .icon-sun{display:block}:root:not([data-theme="light"]) .icon-moon{display:none}}

/* ---------- Hero ---------- */
.hero{position:relative;padding:96px 0 88px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-20% -10% auto -10%;height:120%;z-index:-1;
  background:radial-gradient(600px 340px at 78% 30%,var(--glow),transparent 70%),radial-gradient(500px 300px at 10% 0%,var(--accent-soft),transparent 70%)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;opacity:.55;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(ellipse 70% 70% at 50% 30%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 30%,#000 30%,transparent 75%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:500 13px/1 var(--mono);color:var(--muted);padding:7px 12px;border:1px solid var(--line-2);
  border-radius:999px;background:var(--surface)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px color-mix(in srgb,var(--ok) 20%,transparent)}
.hero h1{font-size:clamp(38px,5.6vw,64px);font-weight:800;margin:22px 0 20px;letter-spacing:-.035em}
.hero h1 .grad{background:linear-gradient(100deg,var(--accent) 10%,var(--accent-2) 90%);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--muted);max-width:40ch}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 20px;border-radius:11px;font-weight:600;font-size:15px;border:1px solid transparent;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 20px -8px var(--accent)}
:root[data-theme="dark"] .btn-primary{color:#061029}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .btn-primary{color:#061029}}
.btn-ghost{background:var(--surface);color:var(--text);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--accent)}
.btn svg{width:17px;height:17px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:36px;color:var(--faint);font-size:14px}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta svg{width:15px;height:15px}

/* Hero card (JQL console) */
.console{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;font-family:var(--mono);font-size:13.5px}
.console-bar{display:flex;align-items:center;gap:7px;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--surface-2)}
.console-bar i{width:10px;height:10px;border-radius:50%;background:var(--line-2)}
.console-bar b{margin-left:8px;font-weight:500;color:var(--faint);font-size:12px}
.console pre{margin:0;padding:18px 18px 20px;white-space:pre-wrap;word-break:break-word;line-height:1.75;color:var(--muted)}
.k{color:var(--accent)} .s{color:var(--ok)} .c{color:var(--faint)} .f{color:var(--text);font-weight:600}
.console-foot{display:flex;gap:8px;flex-wrap:wrap;padding:0 18px 18px}
.chip{font:500 12px/1 var(--mono);padding:7px 10px;border-radius:7px;background:var(--accent-soft);color:var(--accent)}

/* ---------- Sections ---------- */
section{scroll-margin-top:72px}
.section{padding:88px 0;border-top:1px solid var(--line)}
.section.alt{background:var(--bg-2)}
.sec-head{display:grid;grid-template-columns:220px 1fr;gap:32px;margin-bottom:44px;align-items:baseline}
.sec-label{font:500 13px/1.4 var(--mono);color:var(--accent);text-transform:uppercase;letter-spacing:.08em}
.sec-head h2{font-size:clamp(28px,3.4vw,40px);font-weight:750}
.sec-head p{color:var(--muted);margin-top:12px;max-width:60ch}

/* Services */
.grid-4{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:border-color .2s,transform .2s}
.card:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.ico{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);margin-bottom:18px}
.ico svg{width:22px;height:22px}
.card h3{font-size:19px;font-weight:700;margin-bottom:8px}
.card p{color:var(--muted);font-size:15.5px}
.card ul{margin:14px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.card li{font:500 12px/1 var(--mono);color:var(--muted);border:1px solid var(--line-2);padding:6px 9px;border-radius:6px}

/* Featured app */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--surface);border:1px solid var(--line-2);border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
.feature-body{padding:44px}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.badge{display:inline-flex;align-items:center;gap:6px;font:600 12px/1 var(--font);padding:7px 10px;border-radius:999px;border:1px solid var(--line-2);color:var(--muted)}
.badge.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 35%,transparent)}
.badge svg{width:13px;height:13px}
.feature h3{font-size:clamp(26px,3vw,34px);font-weight:800;letter-spacing:-.03em}
.feature .tag{font-size:18px;color:var(--text);margin:10px 0 16px;font-weight:500}
.feature p{color:var(--muted)}
.feature ul{margin:20px 0 28px;padding:0;list-style:none;display:grid;gap:10px}
.feature li{display:flex;gap:10px;color:var(--muted);font-size:15.5px}
.feature li svg{flex:none;width:18px;height:18px;margin-top:3px;color:var(--accent)}
.feature-visual{position:relative;background:linear-gradient(160deg,var(--accent-soft),transparent 60%),var(--surface-2);border-left:1px solid var(--line);display:flex;align-items:center;justify-content:center;padding:40px}
.panel{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line-2);border-radius:14px;padding:20px;box-shadow:var(--shadow)}
.panel-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-size:13px;color:var(--faint)}
.panel-h b{color:var(--text);font-size:14px}
.row{margin-bottom:14px}
.row-top{display:flex;justify-content:space-between;font-size:13.5px;margin-bottom:6px}
.row-top span:first-child{color:var(--text);font-weight:600}
.row-top span:last-child{font-family:var(--mono);color:var(--faint)}
.bar{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.lozenge{font:600 10px/1 var(--font);text-transform:uppercase;letter-spacing:.04em;padding:3px 6px;border-radius:4px;background:var(--accent-soft);color:var(--accent);margin-left:6px;vertical-align:1px}
.panel-foot{border-top:1px solid var(--line);margin-top:16px;padding-top:12px;font-size:12.5px;color:var(--faint)}
.caption{position:absolute;bottom:14px;left:0;right:0;text-align:center;font-size:12px;color:var(--faint)}

/* Certifications */
.certs{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cert{display:flex;gap:20px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.seal{flex:none;width:64px;height:64px;border-radius:16px;display:grid;place-items:center;font:800 14px/1.05 var(--mono);text-align:center;color:#fff;
  background:linear-gradient(140deg,var(--accent),#173a9c)}
.cert h3{font-size:18px;font-weight:700}
.cert .meta{font:500 13px/1.5 var(--mono);color:var(--faint);margin-top:6px}
.cert a{display:inline-block;margin-top:10px;font-size:14px;font-weight:600}
.skills{margin-top:34px;display:flex;flex-wrap:wrap;gap:8px}
.skills span{font-size:14px;padding:8px 13px;border-radius:9px;background:var(--surface);border:1px solid var(--line);color:var(--muted)}

/* Timeline */
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--accent),var(--line-2) 70%)}
.tl{position:relative;padding:0 0 40px 44px}
.tl:last-child{padding-bottom:0}
.tl::before{content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:3px solid var(--accent)}
.section.alt .tl::before{background:var(--bg-2)}
.tl.past::before{border-color:var(--line-2)}
.tl-when{font:500 13px/1 var(--mono);color:var(--accent);letter-spacing:.02em}
.tl.past .tl-when{color:var(--faint)}
.tl h3{font-size:20px;font-weight:700;margin:10px 0 4px}
.tl .org{color:var(--muted);font-size:15px;margin-bottom:12px}
.tl ul{margin:0;padding-left:18px;color:var(--muted);font-size:15.5px;max-width:72ch}
.tl li{margin:4px 0}
.tl li::marker{color:var(--faint)}
.edu-langs{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:48px}
.mini{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.mini h3{font:500 13px/1 var(--mono);color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}
.mini dl{margin:0;display:grid;gap:12px}
.mini dt{font-weight:600}
.mini dd{margin:0;color:var(--muted);font-size:14.5px}

/* Contact */
.contact{position:relative;text-align:center;padding:64px 32px;border-radius:24px;border:1px solid var(--line-2);background:
  radial-gradient(500px 220px at 50% 0%,var(--glow),transparent 70%),var(--surface);box-shadow:var(--shadow)}
.contact h2{font-size:clamp(28px,4vw,44px);font-weight:800;letter-spacing:-.03em}
.contact p{color:var(--muted);max-width:54ch;margin:14px auto 0}
.contact .cta-row{justify-content:center}

/* Footer */
.site-footer{padding:36px 0 44px;color:var(--faint);font-size:14px}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
.site-footer a{color:var(--muted)}

/* 404 */
.nf{min-height:calc(100vh - 64px);display:grid;place-items:center;text-align:center;padding:40px 24px}
.nf .code{font:800 clamp(80px,16vw,160px)/1 var(--mono);background:linear-gradient(100deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.05em}
.nf p{color:var(--muted);margin:12px 0 28px}

/* Reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero{padding:64px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .sec-head{grid-template-columns:1fr;gap:10px}
  .feature{grid-template-columns:1fr}
  .feature-visual{border-left:0;border-top:1px solid var(--line);padding:32px 24px 48px}
}
@media (max-width:820px){ .nav-links{display:none} .controls{margin-left:auto} }
@media (max-width:720px){
  body{font-size:16px}
  .section{padding:64px 0}
  .grid-4,.certs,.edu-langs{grid-template-columns:1fr}
  .feature-body{padding:28px}
  .card{padding:24px}
  .cert{padding:22px;gap:16px}
  .seal{width:54px;height:54px;font-size:12px}
  .contact{padding:48px 22px}
  .btn{flex:1 1 auto;justify-content:center}
}

/* ---------- Layout refinements ---------- */
@media (min-width:961px){
  .hero-grid{grid-template-columns:1.3fr .9fr;gap:48px}
  .hero h1{font-size:clamp(40px,4.6vw,60px)}
  .timeline,.edu-langs{margin-left:252px}
}