/* SVG Power Systems — chrome-on-graphite, engineered. See DESIGN.md */
:root{
  --ink:#0D1116;          /* graphite base */
  --panel:#141A20;        /* steel panel */
  --panel-2:#1B232B;      /* raised panel */
  --hairline:#28323C;     /* structural rule */
  --hairline-2:#3A4855;
  --text:#EAEEF2;         /* primary text */
  --muted:#9AA7B3;        /* secondary text (7.7:1 on ink) */
  --steel-1:#E4EAF0;      /* chrome highlight */
  --steel-2:#8E9BA8;      /* chrome shadow */
  --accent:#3AA0FF;       /* electric blue — energized */
  --accent-dim:#1C6FCB;
  --accent-ink:#06121F;   /* text on accent */
  --glow: 0 0 24px rgba(58,160,255,.35);
  --maxw:1180px;
  --r-sm:4px; --r-md:10px;
  --pad:clamp(20px,5vw,40px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--ink);color:var(--text);
  font-family:"IBM Plex Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3{font-family:"Archivo",system-ui,sans-serif;line-height:1.08;
  letter-spacing:-.02em;margin:0;font-weight:600}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.kicker{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:12.5px;
  letter-spacing:.28em;text-transform:uppercase;color:var(--accent);
  display:inline-flex;align-items:center;gap:10px}
.kicker::before{content:"";width:26px;height:1px;background:var(--accent);opacity:.7}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;
  background:rgba(13,17,22,.78);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--hairline)}
.site-header .wrap{display:flex;align-items:center;gap:24px;
  min-height:70px}
.brand{display:flex;align-items:center;gap:13px;margin-right:auto}
.brand .badge{width:46px;height:46px;border-radius:999px;flex:0 0 auto;
  background:radial-gradient(120% 120% at 30% 25%,#3a444e,#12171c);
  border:1px solid var(--hairline-2);display:grid;place-items:center;overflow:hidden}
.brand .badge img{width:46px;height:46px}
.brand b{font-family:"Archivo",sans-serif;font-weight:600;font-size:16.5px;
  letter-spacing:.02em;line-height:1.05}
.brand b span{display:block;font-family:"IBM Plex Mono",monospace;font-weight:400;
  font-size:11px;letter-spacing:.3em;color:var(--muted)}
.nav{display:flex;gap:28px;align-items:center}
.nav a{font-size:14.5px;color:var(--muted);transition:color .2s}
.nav a:hover,.nav a:focus-visible{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;
  font-size:14.5px;padding:11px 18px;border-radius:var(--r-sm);
  border:1px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--accent);color:var(--accent-ink);box-shadow:var(--glow)}
.btn-primary:hover,.btn-primary:focus-visible{background:#57b0ff;transform:translateY(-1px)}
.btn-ghost{border-color:var(--hairline-2);color:var(--text)}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:var(--accent);color:var(--accent)}
.nav-toggle{display:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

/* ---------- hero ---------- */
/* impeccable-disable codex-grid-background: deliberate blueprint-grid brand signature for an engineering/ICE firm, masked and faded — see DESIGN.md */
.hero{position:relative;overflow:hidden;
  padding:clamp(64px,11vw,120px) 0 clamp(56px,9vw,104px);
  border-bottom:1px solid var(--hairline)}
.hero .grid-bg{position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(90% 70% at 78% -10%,rgba(58,160,255,.14),transparent 60%),
    linear-gradient(180deg,#0f151b, #0d1116 70%);}
.hero .grid-bg::before{content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(var(--hairline) 1px,transparent 1px),
    linear-gradient(90deg,var(--hairline) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(120% 90% at 70% 0%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(120% 90% at 70% 0%,#000 30%,transparent 78%);}
.hero .wrap{position:relative;z-index:2;display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,5.4vw,60px);font-weight:700;letter-spacing:-.025em;
  margin:20px 0 0}
.hero h1 em{font-style:normal;color:var(--accent);
  text-shadow:0 0 30px rgba(58,160,255,.35)}
.hero .lede{color:var(--muted);font-size:clamp(16px,2vw,19px);
  max-width:44ch;margin:20px 0 30px}
.hero .cta{display:flex;flex-wrap:wrap;gap:14px}
.hero .locs{margin-top:26px;display:flex;gap:22px;flex-wrap:wrap;
  font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:.12em;
  color:var(--muted);text-transform:uppercase}
.hero .locs span{display:inline-flex;align-items:center;gap:8px}
.hero .locs span::before{content:"";width:7px;height:7px;background:var(--accent);
  border-radius:999px;box-shadow:var(--glow)}
/* emblem panel with live circuit */
.hero-emblem{position:relative;aspect-ratio:1;max-width:420px;margin-inline:auto;
  width:100%}
.hero-emblem .disc{position:absolute;inset:4%;border-radius:999px;
  background:radial-gradient(120% 120% at 32% 26%,#39434d,#0f141a 72%);
  border:1px solid var(--hairline-2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 30px 70px rgba(0,0,0,.55)}
.hero-emblem img{position:absolute;inset:9%;width:82%;height:82%;
  border-radius:999px;object-fit:cover;
  box-shadow:inset 0 0 0 1px var(--hairline-2),0 8px 22px rgba(0,0,0,.5)}
.hero-emblem svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.pulse-path{fill:none;stroke:var(--accent);stroke-width:2;opacity:.55;
  filter:drop-shadow(0 0 6px rgba(58,160,255,.8))}
.pulse-dot{fill:#bfe0ff;filter:drop-shadow(0 0 8px rgba(58,160,255,1))}
@keyframes travel{to{offset-distance:100%}}
.pulse-dot{offset-path:path('M115 18 A97 97 0 1 1 114.9 18');
  animation:travel 5.2s linear infinite}
@media (prefers-reduced-motion:reduce){.pulse-dot{animation:none;offset-distance:50%}}

/* ---------- trust strip ---------- */
.strip{border-bottom:1px solid var(--hairline);background:var(--panel)}
.strip .wrap{display:flex;flex-wrap:wrap;gap:14px 34px;align-items:center;
  padding-block:18px;font-family:"IBM Plex Mono",monospace;font-size:12.5px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.strip b{color:var(--text);font-weight:500}
.strip .sep{color:var(--hairline-2)}

/* ---------- section shell ---------- */
section{padding-block:clamp(48px,6vw,84px)}
#credentials{padding-bottom:clamp(20px,2.5vw,32px)}
#sectors{padding-top:clamp(40px,5vw,64px)}
.sec-head{max-width:60ch}
.sec-head h2{font-size:clamp(26px,3.6vw,40px);margin:16px 0 0;font-weight:600}
.sec-head p{color:var(--muted);margin:16px 0 0;font-size:18px}

/* ---------- EPC pipeline ---------- */
.pipeline{display:grid;gap:1px;margin-top:52px;
  background:var(--hairline);border:1px solid var(--hairline);border-radius:var(--r-md);
  overflow:hidden;grid-template-columns:repeat(3,1fr)}
.phase{background:var(--panel);padding:30px 26px 34px;position:relative;
  transition:background .25s}
.phase:hover{background:var(--panel-2)}
.phase .num{font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--accent);
  letter-spacing:.2em}
.phase h3{font-size:22px;margin:14px 0 4px;letter-spacing:-.01em}
.phase .tag{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted);
  text-transform:uppercase;letter-spacing:.2em}
.phase ul{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:13px}
.phase li{position:relative;padding-left:24px;font-size:15.5px;color:#cfd7de;line-height:1.45}
.phase li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;
  border:1.5px solid var(--accent);border-radius:2px;transform:rotate(45deg)}
.phase .flow{position:absolute;top:38px;right:-1px;width:40px;height:1px;display:none}

/* ---------- sectors ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:48px}
.card{background:var(--panel);border:1px solid var(--hairline);border-radius:var(--r-md);
  padding:26px 24px;transition:.25s}
.card:hover{border-color:var(--hairline-2);transform:translateY(-3px)}
.card .ic{width:40px;height:40px;color:var(--accent)}
.card h3{font-size:19px;margin:18px 0 8px}
.card p{color:var(--muted);font-size:15px;margin:0}

/* ---------- approach split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
/* federal profile spec card */
.fedcard{background:var(--panel);border:1px solid var(--hairline);border-radius:var(--r-md);
  padding:28px 26px}
.fedcard .kicker{margin-bottom:0}
.fedcard-note{color:var(--muted);font-size:14px;margin:14px 0 6px;line-height:1.5}
.specrows{margin:10px 0 0}
.specrows>div{display:flex;justify-content:space-between;gap:18px;align-items:baseline;
  padding:12px 0;border-top:1px solid var(--hairline)}
.specrows dt{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--muted);margin:0;flex:0 0 auto}
.specrows dd{margin:0;text-align:right;font-size:14.5px;color:var(--text);font-weight:500}
.specrows dd small{display:block;font-weight:400;color:var(--muted);font-size:12px;margin-top:2px}
.specrows dd.tbd{color:var(--muted);font-weight:400;font-style:italic}

/* certifications band */
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.cert{display:flex;align-items:center;gap:11px;background:var(--panel);
  border:1px solid var(--hairline);border-radius:var(--r-md);padding:14px 16px;transition:.25s}
.cert:hover{border-color:var(--hairline-2)}
.cert svg{flex:0 0 auto;width:22px;height:22px;color:var(--accent)}
.cert b{font-family:"Archivo",sans-serif;font-size:14.5px;display:block;line-height:1.1;letter-spacing:.01em}
.cert span{font-size:12px;color:var(--muted);display:block;margin-top:3px;line-height:1.25}
.certs-note{margin-top:20px;font-family:"IBM Plex Mono",monospace;font-size:12px;
  letter-spacing:.03em;color:var(--muted)}
.checklist{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:16px}
.checklist li{display:flex;gap:14px;font-size:16px}
.checklist svg{flex:0 0 auto;color:var(--accent);margin-top:3px}

/* ---------- contact ---------- */
.contact{background:
  radial-gradient(80% 120% at 85% 0%,rgba(58,160,255,.12),transparent 55%),var(--panel);
  border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.contact .inner{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.contact h2{font-size:clamp(26px,3.6vw,40px)}
.contact p{color:var(--muted);margin:16px 0 0;max-width:46ch}
.contact-actions{display:grid;gap:14px}
.contact-row{display:flex;align-items:center;gap:16px;padding:18px 20px;
  background:var(--ink);border:1px solid var(--hairline);border-radius:var(--r-md);
  transition:.2s}
.contact-row:hover{border-color:var(--accent)}
.contact-row svg{color:var(--accent);flex:0 0 auto}
.contact-row .lab{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted);
  text-transform:uppercase;letter-spacing:.16em}
.contact-row .val{font-size:17px;color:var(--text);font-weight:500}

/* ---------- footer ---------- */
.site-footer{padding-block:44px;color:var(--muted);font-size:14px}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;
  align-items:center}
.site-footer .brand b{font-size:15px}
.site-footer .brand b span{font-size:11px}
.site-footer .legal{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.05em}

/* ---------- reveal (progressive enhancement: hidden only when JS is on) ---------- */
.js .reveal{opacity:0;transform:translateY(18px);
  transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;gap:36px}
  .hero-emblem{max-width:320px;order:-1}
  .pipeline,.cards,.split,.contact .inner{grid-template-columns:1fr}
  .certs{grid-template-columns:1fr 1fr}
  .nav{position:fixed;inset:70px 0 auto 0;flex-direction:column;gap:0;
    background:var(--panel);border-bottom:1px solid var(--hairline);
    padding:8px 0;transform:translateY(-140%);transition:transform .3s;z-index:40}
  .nav a{padding:14px var(--pad);width:100%;border-top:1px solid var(--hairline)}
  .nav .btn{margin:12px var(--pad)}
  .nav.open{transform:none}
  .nav-toggle{display:inline-grid;place-items:center;width:44px;height:44px;
    background:none;border:1px solid var(--hairline-2);border-radius:var(--r-sm);
    color:var(--text);cursor:pointer}
}
@media (max-width:560px){
  .strip .wrap{gap:8px 18px}
  .site-header .wrap{gap:12px}
}