:root{
  --ink:#0F1C2E;
  --ink-soft:#33465C;
  --slate:#5B6B7F;
  --paper:#F4F6F8;
  --paper-deep:#E8ECEF;
  --line:#C9D2DA;
  --amber:#C98A00;
  --amber-deep:#9C6B00;
  --max:1020px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  font-family:"Source Serif 4",Georgia,serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.7;
  font-size:17.5px;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--amber);color:#fff}
a{color:inherit}
a:focus-visible{outline:2px solid var(--amber-deep);outline-offset:3px}
img{max-width:100%;display:block}

.eyebrow{
  font-family:"IBM Plex Mono",monospace;
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--amber-deep);display:flex;align-items:center;gap:12px;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--amber-deep)}

.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}

/* ---------- nav ---------- */
nav{
  position:sticky;top:0;z-index:50;
  background:rgba(244,246,248,.88);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--max);margin:0 auto;padding:16px 28px;
  display:flex;align-items:center;justify-content:space-between;
}
.wordmark{
  font-family:Archivo,sans-serif;font-weight:800;font-size:17px;
  letter-spacing:-.01em;text-decoration:none;
}
.wordmark .dot{color:var(--amber)}
.nav-links{display:flex;gap:24px;list-style:none}
.nav-links a{
  font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.08em;
  text-transform:uppercase;text-decoration:none;color:var(--ink-soft);
  transition:color .15s;
}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--amber-deep)}
.nav-links a.active{color:var(--amber-deep);border-bottom:2px solid var(--amber)}
@media(max-width:680px){.nav-links{gap:13px}.nav-links li.hide-m{display:none}}

/* ---------- hero ---------- */
header.hero{padding:92px 0 76px}
h1{
  font-family:Archivo,sans-serif;font-weight:800;
  font-size:clamp(46px,7.5vw,84px);line-height:1.02;letter-spacing:-.035em;
  margin:22px 0 30px;
}
h1 .dot{color:var(--amber)}
header.hero.sub{padding:72px 0 56px}
header.hero.sub h1{font-size:clamp(38px,6vw,64px)}
.hero-intro{max-width:36em;font-size:20px;color:var(--ink-soft)}
.hero-intro em{font-style:italic;color:var(--ink)}
.hero-intro p{margin-bottom:18px}
.hero-intro p:last-child{margin-bottom:0}
.hello{
  font-family:"IBM Plex Mono",monospace;font-size:13px;letter-spacing:.1em;
  color:var(--slate);
}

/* ---------- sections ---------- */
section{padding:80px 0;border-top:1px solid var(--line)}
h2{
  font-family:Archivo,sans-serif;font-weight:700;
  font-size:clamp(28px,4vw,40px);letter-spacing:-.025em;line-height:1.15;
  margin:18px 0 16px;max-width:18em;
}
h2 em{font-style:italic;font-weight:600;color:var(--amber-deep)}
.lede{font-size:19px;color:var(--ink-soft);max-width:38em}

/* ---------- contributions ledger ---------- */
.ledger{margin-top:48px;border-top:2px solid var(--ink)}
.entry{
  display:grid;grid-template-columns:150px 1fr;gap:36px;
  padding:36px 0;border-bottom:1px solid var(--line);
}
.entry .when{
  font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--slate);padding-top:6px;
}
.entry .when .org{display:block;color:var(--ink);font-weight:500;margin-top:4px;font-size:13px;text-transform:none;letter-spacing:.03em}
.entry h3{
  font-family:Archivo,sans-serif;font-weight:700;font-size:21px;
  letter-spacing:-.015em;margin-bottom:10px;
}
.entry p{color:var(--ink-soft);font-size:16.5px;max-width:36em}
.entry .credit{
  margin-top:12px;font-style:italic;font-size:15px;color:var(--slate);
}
.entry .credit::before{content:"— ";color:var(--amber-deep)}

/* ---------- values ---------- */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:44px}
.value{background:var(--paper);padding:30px 26px;transition:background .18s}
.value:hover{background:#fff}
.value h3{font-family:Archivo,sans-serif;font-weight:700;font-size:18px;letter-spacing:-.01em;margin:12px 0 8px}
.value p{font-size:15.5px;color:var(--ink-soft)}
.value .tag{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-deep)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.card{
  background:#fff;border:1px solid var(--line);padding:28px 26px;
  text-decoration:none;display:flex;flex-direction:column;gap:12px;
  transition:border-color .18s, box-shadow .18s;
}
a.card:hover{border-color:var(--ink);box-shadow:6px 6px 0 var(--paper-deep)}
.card .tag{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-deep)}
.card h3{font-family:Archivo,sans-serif;font-weight:700;font-size:19px;letter-spacing:-.015em;line-height:1.3}
.card p{font-size:15px;color:var(--ink-soft);flex:1}
.card .go{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink)}
.card.soon{background:transparent;border-style:dashed}

/* ---------- project bench (AI-Lab) ---------- */
.bench{margin-top:48px;display:grid;gap:26px}
.project{
  background:#fff;border:1px solid var(--line);
  display:grid;grid-template-columns:180px 1fr;gap:0;
  transition:border-color .18s, box-shadow .18s;
}
.project:hover{border-color:var(--ink);box-shadow:8px 8px 0 var(--paper-deep)}
.project .meta{
  border-right:1px solid var(--line);padding:26px 22px;
  font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--slate);
  display:flex;flex-direction:column;gap:10px;
}
.project .meta .status{color:var(--amber-deep);display:flex;align-items:center;gap:8px}
.project .meta .status::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber)}
.project .meta .status.shipped::before{background:#2F9E63}
.project .meta .status.exploring::before{background:var(--slate)}
.project .meta .status.finalizing::before{background:#2E7CD6}

/* status legend */
.legend{
  display:flex;gap:26px;flex-wrap:wrap;margin-top:30px;
  font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--slate);
}
.legend span{display:flex;align-items:center;gap:8px}
.legend span::before{content:"";width:8px;height:8px;border-radius:50%}
.legend .l-exploring::before{background:var(--slate)}
.legend .l-progress::before{background:var(--amber)}
.legend .l-finalizing::before{background:#2E7CD6}
.legend .l-shipped::before{background:#2F9E63}
.project .body{padding:26px 28px}
.project h3{font-family:Archivo,sans-serif;font-weight:700;font-size:22px;letter-spacing:-.015em;margin-bottom:10px}
.project p{color:var(--ink-soft);font-size:16px;max-width:38em;margin-bottom:12px}
.project p:last-of-type{margin-bottom:0}
.stack{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.chip{
  font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.06em;
  padding:4px 10px;border:1px solid var(--line);color:var(--ink-soft);background:var(--paper);
}
.project .links{margin-top:16px;display:flex;gap:18px}
.project .links a{font-family:"IBM Plex Mono",monospace;font-size:12.5px;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--amber)}
.project .links a:hover{color:var(--amber-deep)}

/* ---------- github page ---------- */
.gh-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:44px}
.stat{background:#fff;padding:26px 24px;text-align:center}
.stat .num{font-family:Archivo,sans-serif;font-weight:800;font-size:38px;letter-spacing:-.02em;line-height:1.1}
.stat .lbl{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);margin-top:6px}
.gh-chart{
  margin-top:44px;background:#fff;border:1px solid var(--line);padding:28px;
}
.gh-chart img{width:100%;height:auto}
.gh-chart .cap{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);margin-top:14px}
.repos{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:44px}
.repo{
  background:#fff;border:1px solid var(--line);padding:24px 24px;
  text-decoration:none;display:flex;flex-direction:column;gap:10px;
  transition:border-color .18s, box-shadow .18s;
}
.repo:hover{border-color:var(--ink);box-shadow:6px 6px 0 var(--paper-deep)}
.repo h3{font-family:"IBM Plex Mono",monospace;font-weight:500;font-size:16px;color:var(--ink)}
.repo p{font-size:14.5px;color:var(--ink-soft);flex:1}
.repo .foot{display:flex;gap:18px;font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--slate)}
.repo .foot .lang::before{content:"●";color:var(--amber);margin-right:6px}
.gh-note{
  margin-top:30px;font-size:15px;color:var(--slate);font-style:italic;
}

/* ---------- contact ---------- */
.contact{background:var(--ink);color:var(--paper);border-top:none}
.contact .eyebrow{color:var(--amber)}
.contact .eyebrow::before{background:var(--amber)}
.contact h2 em{color:var(--amber)}
.contact .lede{color:#AEBBCB}
.btn{
  font-family:"IBM Plex Mono",monospace;font-size:13px;letter-spacing:.06em;
  text-transform:uppercase;text-decoration:none;padding:14px 24px;
  border:1px solid var(--paper);color:var(--paper);transition:all .18s;display:inline-block;
}
.btn-solid{background:var(--amber);border-color:var(--amber);color:var(--ink)}
.btn-solid:hover{background:var(--paper);border-color:var(--paper)}
.btn-ghost:hover{background:var(--paper);color:var(--ink)}
.btn-dark{border-color:var(--ink);color:var(--ink)}
.btn-dark:hover{background:var(--ink);color:var(--paper)}
.ctas{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}

footer{background:var(--ink);color:#7C8DA1;padding:34px 0;border-top:1px solid #2A3B51}
.foot-inner{max-width:var(--max);margin:0 auto;padding:0 28px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.05em}
footer a{color:#AEBBCB;text-decoration:none}
footer a:hover{color:var(--amber)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media(max-width:800px){
  .values,.cards,.repos,.gh-stats{grid-template-columns:1fr}
  .entry{grid-template-columns:1fr;gap:10px}
  .project{grid-template-columns:1fr}
  .project .meta{border-right:none;border-bottom:1px solid var(--line);flex-direction:row;flex-wrap:wrap;gap:16px}
  header.hero{padding:56px 0 52px}
  section{padding:60px 0}
}