:root{
  --ink:#0D1420;
  --panel:#131D2C;
  --panel-2:#0F1826;
  --line:#22334A;
  --paper:#E7ECF2;
  --muted:#8FA1B6;
  --amber:#FFB454;
  --teal:#52E3C2;
  --radius:10px;
  --max:1080px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:'Space Grotesk', sans-serif;
  font-weight:600;
  line-height:1.15;
  margin:0;
  letter-spacing:-0.01em;
}
.mono{
  font-family:'IBM Plex Mono', monospace;
}
a{color:inherit;}
img{max-width:100%; display:block;}
.wrap{
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
}
.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:12.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--teal);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:16px;
  height:1px;
  background:var(--teal);
  display:inline-block;
}
:focus-visible{
  outline:2px solid var(--teal);
  outline-offset:3px;
}

/* ---------- NAV ---------- */
header{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(13,20,32,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
nav.wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  padding-bottom:14px;
}
.brand{
  font-family:'Space Grotesk', sans-serif;
  font-weight:600;
  font-size:17px;
  display:flex;
  align-items:center;
  gap:10px;
}
.brand-avatar{
  width:34px;
  height:34px;
  border-radius:50%;
  object-fit:cover;
  border:1.5px solid var(--amber);
}
.navlinks{
  display:flex;
  gap:28px;
  font-size:14px;
  color:var(--muted);
}
.navlinks a{text-decoration:none;transition:color .15s;}
.navlinks a:hover{color:var(--paper);}
.navcta{
  font-size:13.5px;
  font-family:'IBM Plex Mono', monospace;
  padding:9px 16px;
  border:1px solid var(--teal);
  border-radius:6px;
  text-decoration:none;
  color:var(--teal);
  white-space:nowrap;
  transition:background .15s, color .15s;
}
.navcta:hover{background:var(--teal); color:var(--ink);}

/* ---------- WIRE DIVIDER (signature motif) ---------- */
.wire{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--line);
  margin:0 auto;
  max-width:var(--max);
  padding:0 24px;
}
.wire .seg{flex:1; height:1px; background:var(--line);}
.wire .node{
  width:6px;height:6px;border-radius:50%;
  background:var(--line);
  flex-shrink:0;
}
section{padding:96px 0;}
section.tight{padding:72px 0;}

/* ---------- HERO ---------- */
.hero{
  padding-top:76px;
  padding-bottom:64px;
  position:relative;
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:56px;
  align-items:center;
}
.hero h1{
  font-size:44px;
  margin-top:18px;
}
.hero h1 .hl{color:var(--amber);}
.hero p.lede{
  color:var(--muted);
  font-size:17px;
  max-width:46ch;
  margin-top:20px;
}
.hero-stats{
  display:flex;
  gap:32px;
  margin-top:34px;
  flex-wrap:wrap;
}
.stat .num{
  font-family:'Space Grotesk', sans-serif;
  font-size:26px;
  font-weight:700;
  color:var(--paper);
}
.stat .lbl{
  font-size:12.5px;
  color:var(--muted);
  margin-top:2px;
}
.hero-ctas{
  display:flex;
  gap:14px;
  margin-top:36px;
  flex-wrap:wrap;
}
.btn{
  font-family:'IBM Plex Mono', monospace;
  font-size:13.5px;
  padding:13px 22px;
  border-radius:7px;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:transform .15s, background .15s, border-color .15s;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--amber); color:#1A1305; font-weight:500;}
.btn-primary:hover{background:#ffc178;}
.btn-ghost{border:1px solid var(--line); color:var(--paper);}
.btn-ghost:hover{border-color:var(--teal); color:var(--teal);}

/* Pipeline diagram */
.pipeline{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  padding:28px 22px 22px;
}
.pipeline .cap{
  font-family:'IBM Plex Mono', monospace;
  font-size:11.5px;
  color:var(--muted);
  letter-spacing:0.08em;
  text-transform:uppercase;
  margin-bottom:14px;
}
.flowline{
  stroke:var(--line);
  stroke-width:2;
  fill:none;
}
.flowpulse{
  stroke:var(--teal);
  stroke-width:2;
  fill:none;
  stroke-dasharray:6 10;
  animation:dash 2.6s linear infinite;
}
@keyframes dash{ to { stroke-dashoffset:-160; } }
.fnode-bg{fill:var(--panel-2); stroke:var(--line); stroke-width:1.4;}
.fnode-bg.on{stroke:var(--amber);}
.flabel{
  font-family:'IBM Plex Mono', monospace;
  font-size:11px;
  fill:var(--paper);
}
.fsub{
  font-family:'IBM Plex Mono', monospace;
  font-size:9.5px;
  fill:var(--muted);
}

/* ---------- SECTION HEADS ---------- */
.head{max-width:56ch; margin-top:16px;}
.head h2{font-size:30px;}
.head p{color:var(--muted); margin-top:12px; font-size:15.5px;}

/* ---------- PROJECTS ---------- */
.grid-projects{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:18px;
  margin-top:44px;
}
.pcard{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  transition:border-color .15s, transform .15s, opacity .4s, translate .4s;
}
.pcard:hover{border-color:var(--teal); transform:translateY(-2px);}
.ptag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-family:'IBM Plex Mono', monospace;
  font-size:11px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--ink);
  background:var(--teal);
  padding:4px 9px;
  border-radius:4px;
  font-weight:500;
}
.pcard h3{
  font-size:18px;
  margin-top:14px;
}
.pflow{
  font-family:'IBM Plex Mono', monospace;
  font-size:12px;
  color:var(--amber);
  margin-top:10px;
  display:block;
}
.pcard p{
  color:var(--muted);
  font-size:14.5px;
  margin-top:10px;
}

/* ---------- STACK ---------- */
.stackgrid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:14px;
  margin-top:40px;
}
.schip{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:8px;
  padding:16px 14px;
  text-align:center;
}
.schip .lvl{
  height:3px;
  background:var(--line);
  border-radius:2px;
  margin:10px auto 0;
  max-width:60px;
  position:relative;
  overflow:hidden;
}
.schip .lvl::after{
  content:"";
  position:absolute; left:0; top:0; bottom:0;
  background:var(--amber);
  width:var(--w, 70%);
}
.schip .name{font-family:'IBM Plex Mono', monospace; font-size:13px;}

/* ---------- PROCESS ---------- */
.process{
  margin-top:44px;
  display:grid;
  gap:0;
}
.pstep{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:22px 0;
  border-top:1px solid var(--line);
}
.pstep:last-child{border-bottom:1px solid var(--line);}
.pstep .idx{
  font-family:'Space Grotesk', sans-serif;
  font-size:20px;
  font-weight:700;
  color:var(--line);
}
.pstep h3{font-size:17px;}
.pstep p{color:var(--muted); font-size:14.5px; margin-top:6px; max-width:60ch;}

/* ---------- EXPERIENCE ---------- */
.xprow{
  display:grid;
  grid-template-columns:170px 1fr;
  gap:22px;
  padding:22px 0;
  border-top:1px solid var(--line);
}
.xprow:last-child{border-bottom:1px solid var(--line);}
.xprow .when{font-family:'IBM Plex Mono', monospace; font-size:13px; color:var(--muted);}
.xprow h3{font-size:16.5px;}
.xprow p{color:var(--muted); font-size:14.5px; margin-top:6px;}
.certs{display:flex; gap:10px; margin-top:22px; flex-wrap:wrap;}
.cert{
  font-family:'IBM Plex Mono', monospace;
  font-size:12px;
  border:1px solid var(--line);
  border-radius:6px;
  padding:7px 11px;
  color:var(--muted);
}

/* ---------- CONTACT ---------- */
.contact{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:16px;
  padding:52px 44px;
  margin-top:16px;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:44px;
  align-items:center;
}
.badge{
  text-align:center;
  padding-right:44px;
  border-right:1px solid var(--line);
}
.badge img{
  width:148px;
  height:185px;
  object-fit:cover;
  border-radius:10px;
  border:1px solid var(--line);
  margin:0 auto;
}
.badge .btag{
  font-family:'IBM Plex Mono', monospace;
  font-size:10.5px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--teal);
  margin-top:14px;
}
.badge .bname{
  font-family:'Space Grotesk', sans-serif;
  font-weight:600;
  font-size:15px;
  margin-top:4px;
}
.badge .bloc{
  font-family:'IBM Plex Mono', monospace;
  font-size:11.5px;
  color:var(--muted);
  margin-top:2px;
}
.contact-body{text-align:left;}
.contact-body h2{font-size:28px;}
.contact-body p{color:var(--muted); margin-top:12px; font-size:15.5px;}
.contact-ctas{
  display:flex;
  gap:14px;
  margin-top:28px;
  flex-wrap:wrap;
}
footer{
  padding:36px 0 48px;
  text-align:center;
  color:var(--muted);
  font-size:13px;
  font-family:'IBM Plex Mono', monospace;
}

/* scroll reveal (progressive enhancement, see js/main.js) */
.reveal{opacity:0; translate:0 14px;}
.reveal.is-visible{opacity:1; translate:0 0;}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 860px){
  .hero-grid{grid-template-columns:1fr;}
  .grid-projects{grid-template-columns:1fr;}
  .stackgrid{grid-template-columns:repeat(2,1fr);}
  .xprow{grid-template-columns:1fr;}
  .navlinks{display:none;}
  .hero h1{font-size:32px;}
  .contact{grid-template-columns:1fr; padding:36px 22px; text-align:center;}
  .badge{border-right:none; border-bottom:1px solid var(--line); padding-right:0; padding-bottom:28px;}
  .contact-body{text-align:center;}
  .contact-ctas{justify-content:center;}
}

@media (prefers-reduced-motion: reduce){
  .flowpulse{animation:none; stroke-dasharray:none;}
  .pcard, .btn{transition:none;}
  .reveal{opacity:1; translate:0 0;}
}