:root{
  --ink:#181D28;
  --ink-soft:#3A4152;
  --muted:#6A7180;
  --paper:#F3F4F1;
  --card:#FBFBF9;
  --line:#D8DAD3;
  --slate:#5E6EA4;
  --slate-deep:#48548A;
  --slate-wash:#E8EAF2;
  --amber:#B5772A;
  --footer-bg:#181D28;
  --shadow:rgba(24,29,40,.35);
  --max:1080px;
  --radius:10px;
  color-scheme:light;
}
[data-theme="dark"]{
  --ink:#E8EAF0;
  --ink-soft:#B4BAC8;
  --muted:#8A90A0;
  --paper:#14171F;
  --card:#1C202B;
  --line:#2A2F3C;
  --slate:#7D8CC4;
  --slate-deep:#93A2D8;
  --slate-wash:#262C40;
  --amber:#D19A4F;
  --footer-bg:#0E1118;
  --shadow:rgba(0,0,0,.55);
  color-scheme:dark;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{
  font-family:'Instrument Sans',system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  font-size:16.5px;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--slate);color:#fff}

/* ---------- Paper grain ---------- */
body::after{
  content:"";position:fixed;inset:0;z-index:9999;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  opacity:.05;
}
[data-theme="dark"] body::after{opacity:.075}
a{color:var(--slate-deep);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible{outline:2px solid var(--slate-deep);outline-offset:3px;border-radius:3px}

.mono{font-family:'Spline Sans Mono',monospace}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.hwrap{
  max-width:var(--max);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;gap:28px;
}
.wordmark{
  font-family:'Spline Sans Mono',monospace;
  font-weight:600;font-size:.95rem;letter-spacing:.06em;
  color:var(--ink);
}
.wordmark:hover{text-decoration:none;color:var(--slate-deep)}
nav{display:flex;gap:22px;margin-left:auto}
nav a{
  font-size:.88rem;font-weight:500;color:var(--ink-soft);
}
nav a:hover{color:var(--slate-deep);text-decoration:none}
.lang-switch{
  display:flex;border:1px solid var(--line);border-radius:99px;overflow:hidden;
  background:var(--card);
}
.lang-switch button{
  border:0;background:transparent;cursor:pointer;
  font-family:'Spline Sans Mono',monospace;font-size:.78rem;font-weight:600;
  padding:6px 13px;color:var(--muted);letter-spacing:.04em;
}
.lang-switch button[aria-pressed="true"]{
  background:var(--ink);color:var(--paper);
}
.theme-toggle{
  border:1px solid var(--line);background:var(--card);color:var(--ink-soft);
  width:34px;height:34px;border-radius:50%;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;flex:none;
  transition:border-color .2s ease,color .2s ease;
}
.location{
  padding-left: 0.55rem
}
.theme-toggle:hover{border-color:var(--slate);color:var(--slate-deep)}
.theme-toggle svg{width:16px;height:16px}
.icon-sun{display:none}
[data-theme="dark"] .icon-sun{display:block}
[data-theme="dark"] .icon-moon{display:none}

/* ---------- Burger / mobile nav ---------- */
.burger{
  border:1px solid var(--line);background:var(--card);color:var(--ink-soft);
  width:34px;height:34px;border-radius:50%;cursor:pointer;flex:none;
  display:none;align-items:center;justify-content:center;
  transition:border-color .2s ease,color .2s ease;
}
.burger:hover{border-color:var(--slate);color:var(--slate-deep)}
.burger svg{width:16px;height:16px}
.burger .icon-close{display:none}
.burger[aria-expanded="true"] .icon-close{display:block}
.burger[aria-expanded="true"] .icon-bars{display:none}
.mobile-nav{
  display:none;flex-direction:column;padding:6px 24px 16px;
  border-bottom:1px solid var(--line);background:var(--paper);
}
.mobile-nav.open{display:flex}
.mobile-nav a{
  padding:11px 0;font-size:.95rem;font-weight:500;color:var(--ink-soft);
  border-top:1px solid var(--line);
}
.mobile-nav a:first-child{border-top:0}
.mobile-nav a:hover{color:var(--slate-deep);text-decoration:none}
@media (min-width:641px){.mobile-nav{display:none}}
@media (max-width:640px){
  .hwrap>nav{display:none}
  .lang-switch{margin-left:auto}
  .burger{display:inline-flex}
}

/* ---------- Layout ---------- */
main{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:72px 0 8px}
.sec-label{
  font-family:'Spline Sans Mono',monospace;
  font-size:.75rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--slate-deep);
  display:flex;align-items:center;gap:14px;margin-bottom:34px;
}
.sec-label::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---------- Hero ---------- */
.hero{
  display:grid;grid-template-columns:1.35fr .85fr;gap:56px;
  align-items:center;padding:76px 0 68px;
}
.status{
  display:inline-flex;align-items:center;gap:9px;
  font-family:'Spline Sans Mono',monospace;font-size:.78rem;font-weight:500;
  letter-spacing:.05em;color:var(--ink-soft);
  border:1px solid var(--line);background:var(--card);
  padding:6px 14px;border-radius:99px;margin-bottom:26px;
}
.dot{width:8px;height:8px;border-radius:50%;background:#3E8E5A;position:relative}
.dot::after{
  content:"";position:absolute;inset:-4px;border-radius:50%;
  border:1.5px solid #3E8E5A;opacity:0;
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{0%{transform:scale(.5);opacity:.7}70%{transform:scale(1.2);opacity:0}100%{opacity:0}}
h1{
  font-family:'Archivo',sans-serif;font-weight:800;
  font-size:clamp(2.6rem,5.4vw,4.1rem);
  line-height:1.02;letter-spacing:-.025em;
  margin-bottom:18px;
}
h1 .accent{color:var(--slate-deep)}
.hero-role{
  font-family:'Archivo',sans-serif;font-weight:600;font-size:1.18rem;
  color:var(--ink-soft);margin-bottom:20px;letter-spacing:-.01em;
}
.hero p.lede{
  color:var(--ink-soft);max-width:56ch;margin-bottom:30px;font-size:1.02rem;
}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:600;font-size:.92rem;
  padding:11px 20px;border-radius:8px;
  border:1px solid var(--ink);
  transition:transform .15s ease, box-shadow .15s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{box-shadow:0 6px 18px -6px rgba(24,29,40,.45)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink)}

.portrait{
  position:relative;justify-self:end;width:100%;max-width:340px;
}
.portrait img{
  width:100%;display:block;border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:0 24px 48px -20px var(--shadow);
}
.portrait figcaption{
  margin-top:12px;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:2px 12px;padding-left:20px;
  font-family:'Spline Sans Mono',monospace;font-size:.72rem;
  letter-spacing:.08em;color:var(--muted);text-transform:uppercase;
}
.portrait::before{
  content:"";position:absolute;inset:14px -14px -14px 14px;
  border:1px solid var(--slate);border-radius:var(--radius);z-index:-1;opacity:.55;
}
@media (max-width:820px){
  .hero{grid-template-columns:1fr;gap:44px;padding-top:52px}
  .portrait{justify-self:center;max-width:280px}
}

/* ---------- Ledger / Experience ---------- */
.ledger{display:flex;flex-direction:column}
.entry{
  display:grid;grid-template-columns:150px 1fr;gap:28px;
  padding:30px 0;border-top:1px solid var(--line);
  position:relative;
}
.entry:last-child{border-bottom:1px solid var(--line)}
.entry-when{
  font-family:'Spline Sans Mono',monospace;font-size:.8rem;font-weight:500;
  color:var(--muted);letter-spacing:.03em;padding-top:5px;
}
.entry-when .sector{
  display:block;margin-top:8px;font-size:.68rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--amber);font-weight:600;
}
.entry h3{
  font-family:'Archivo',sans-serif;font-weight:700;font-size:1.22rem;
  letter-spacing:-.015em;margin-bottom:2px;
}
.entry .org{font-weight:600;color:var(--slate-deep);font-size:.95rem;margin-bottom:12px}
.entry ul{list-style:none;display:flex;flex-direction:column;gap:9px;margin-bottom:14px}
.entry ul li{
  padding-left:20px;position:relative;color:var(--ink-soft);font-size:.96rem;
}
.entry ul li::before{
  content:"";position:absolute;left:2px;top:.62em;
  width:7px;height:2px;background:var(--slate);
}
.entry ul li strong{color:var(--ink);font-weight:600}
.stack{display:flex;flex-wrap:wrap;gap:7px}
.tag{
  font-family:'Spline Sans Mono',monospace;font-size:.7rem;font-weight:500;
  padding:4px 10px;border-radius:5px;letter-spacing:.02em;
  background:var(--slate-wash);color:var(--slate-deep);
  border:1px solid color-mix(in srgb, var(--slate) 30%, transparent);
}
@media (max-width:640px){
  .entry{grid-template-columns:1fr;gap:10px}
  .entry-when .sector{display:inline;margin-left:12px}
}

/* ---------- Projects ---------- */
.projects{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.proj{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 26px 22px;display:flex;flex-direction:column;gap:12px;
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.proj:hover{
  border-color:var(--slate);transform:translateY(-3px);
  box-shadow:0 14px 30px -18px rgba(72,84,138,.4);
}
.proj-org{
  font-family:'Spline Sans Mono',monospace;font-size:.7rem;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--amber);
}
.proj h3{font-family:'Archivo',sans-serif;font-weight:700;font-size:1.12rem;letter-spacing:-.01em}
.proj p{color:var(--ink-soft);font-size:.93rem;flex:1}
.proj a.repo{
  font-family:'Spline Sans Mono',monospace;font-size:.76rem;font-weight:600;letter-spacing:.03em;
}
@media (max-width:720px){.projects{grid-template-columns:1fr}}

/* ---------- Skills ---------- */
.skills{display:flex;flex-direction:column;gap:0}
.skill-row{
  display:grid;grid-template-columns:150px 1fr;gap:28px;
  padding:22px 0;border-top:1px solid var(--line);align-items:baseline;
}
.skill-row:last-child{border-bottom:1px solid var(--line)}
.skill-row h3{
  font-family:'Spline Sans Mono',monospace;font-size:.75rem;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
}
.skill-row .stack .tag{background:var(--card);color:var(--ink-soft);border-color:var(--line)}
@media (max-width:640px){.skill-row{grid-template-columns:1fr;gap:12px}}

/* ---------- Education ---------- */
.edu{display:flex;flex-direction:column}
.edu-item{
  display:grid;grid-template-columns:150px 1fr;gap:28px;
  padding:20px 0;border-top:1px solid var(--line);
}
.edu-item:last-child{border-bottom:1px solid var(--line)}
.edu-when{font-family:'Spline Sans Mono',monospace;font-size:.8rem;color:var(--muted);padding-top:3px}
.edu-item h3{font-family:'Archivo',sans-serif;font-weight:700;font-size:1.05rem;letter-spacing:-.01em}
.edu-item .school{color:var(--slate-deep);font-weight:600;font-size:.9rem}
.edu-item p{color:var(--ink-soft);font-size:.9rem;margin-top:6px;max-width:70ch}
@media (max-width:640px){.edu-item{grid-template-columns:1fr;gap:6px}}

/* ---------- Certifications ---------- */
.cert-body{display:flex;gap:20px;align-items:flex-start;justify-content:space-between}
.cert-body>div{flex:1;min-width:0}
.cert-badge{width:64px;height:64px;flex:none;margin-top:2px}
.cred-line{font-size:.82rem;color:var(--muted);margin-top:8px}
.cred-line .mono{font-size:.74rem}
a.verify-link{
  font-family:'Spline Sans Mono',monospace;font-size:.74rem;font-weight:600;letter-spacing:.03em;
}

/* ---------- Footer ---------- */
footer{
  margin-top:90px;background:var(--footer-bg);color:#C9CCD6;
}
.fwrap{max-width:var(--max);margin:0 auto;padding:64px 24px 40px}
.fwrap h2{
  font-family:'Archivo',sans-serif;font-weight:800;color:#fff;
  font-size:clamp(1.7rem,3.4vw,2.5rem);letter-spacing:-.02em;margin-bottom:14px;
}
.fwrap p{max-width:52ch;margin-bottom:28px;font-size:.98rem}
.fwrap a.mail{
  font-family:'Spline Sans Mono',monospace;font-size:1.05rem;color:#AEB9E0;font-weight:600;
}
.f-links{display:flex;gap:24px;margin-top:34px;padding-top:26px;border-top:1px solid #2A3040;flex-wrap:wrap}
.f-links a{color:#8E94A4;font-size:.85rem}
.f-links a:hover{color:#fff}
.f-note{margin-top:26px;font-family:'Spline Sans Mono',monospace;font-size:.7rem;color:#5D6374;letter-spacing:.05em}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease, transform .55s ease}
.reveal.in{opacity:1;transform:none}