:root{
  --bg:#070b1e;
  --bg2:#0b1130;
  --ink:#eef2ff;
  --muted:#9aa3c7;
  --pulse:#00e676;
  --pulse-dim:rgba(0,230,118,.16);
  --line:rgba(154,163,199,.16);
  --card:#0d1334;
  --radius:14px;
  --font:'Space Grotesk',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--pulse);color:#04140a}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 28px;
  background:rgba(7,11,30,.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand-mark{height:38px;width:38px;object-fit:cover;border-radius:8px}
.brand-name{font-weight:700;letter-spacing:.14em;font-size:15px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{
  color:#04140a!important;background:var(--pulse);
  padding:9px 18px;border-radius:999px;font-weight:600!important;
}
.nav-cta:hover{background:#3cf58f}

/* ---------- hero ---------- */
.hero{
  position:relative;text-align:center;
  padding:110px 24px 90px;
  overflow:hidden;
}
.hero-ekg{position:absolute;inset:0;display:flex;align-items:center;pointer-events:none;opacity:.5}
.hero-ekg svg{width:100%;height:160px}
.ekg-ghost{fill:none;stroke:var(--line);stroke-width:2}
.ekg-trace{
  fill:none;stroke:var(--pulse);stroke-width:2.5;
  stroke-linecap:round;stroke-linejoin:round;
  stroke-dasharray:2400;stroke-dashoffset:2400;
  animation:trace 5s linear infinite;
  filter:drop-shadow(0 0 8px rgba(0,230,118,.55));
}
@keyframes trace{
  0%{stroke-dashoffset:2400}
  55%{stroke-dashoffset:0}
  100%{stroke-dashoffset:-2400}
}
.kicker{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--pulse);margin-bottom:18px;
  position:relative;
}
.hero h1{
  font-size:clamp(52px,9vw,110px);font-weight:700;
  letter-spacing:.06em;line-height:1.02;margin-bottom:22px;
  position:relative;
}
.lede{
  max-width:720px;margin:0 auto 36px;color:var(--muted);
  font-size:clamp(16px,2vw,19px);position:relative;
}
.lede strong{color:var(--ink);font-weight:600}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative}
.btn{
  display:inline-block;padding:14px 30px;border-radius:999px;
  font-weight:600;font-size:15.5px;text-decoration:none;
  transition:transform .15s,background .2s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--pulse);color:#04140a}
.btn-primary:hover{background:#3cf58f}
.btn-ghost{border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--pulse);color:var(--pulse)}

/* ---------- strip ---------- */
.strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.strip-item{
  padding:26px 30px;font-size:14.5px;color:var(--muted);
  border-left:1px solid var(--line);
  display:flex;gap:16px;align-items:baseline;
}
.strip-item:first-child{border-left:none}
.strip-num{font-family:var(--mono);color:var(--pulse);font-size:13px}

/* ---------- sections ---------- */
.section{padding:96px 24px;max-width:1080px;margin:0 auto}
.section-alt{background:var(--bg2);max-width:none}
.section-alt>.kicker,.section-alt>h2,.section-alt>.section-lede,.section-alt>.cards{max-width:1080px;margin-left:auto;margin-right:auto}
.section h2{font-size:clamp(30px,4.4vw,46px);letter-spacing:.01em;margin-bottom:14px}
.section-lede{color:var(--muted);max-width:640px;margin-bottom:48px;font-size:17px}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:34px 32px;
  transition:border-color .25s,transform .25s;
}
.card:hover{border-color:rgba(0,230,118,.45);transform:translateY(-4px)}
.card-tag{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--pulse);margin-bottom:16px;
}
.card h3{font-size:23px;margin-bottom:12px}
.card p{color:var(--muted);font-size:15.5px;margin-bottom:18px}
.card ul{list-style:none}
.card li{
  font-size:14.5px;color:var(--ink);padding:7px 0 7px 22px;position:relative;
}
.card li::before{
  content:"";position:absolute;left:2px;top:15px;
  width:8px;height:8px;border-radius:50%;background:var(--pulse);
}

/* ---------- cta band ---------- */
.cta-band{text-align:center}
.cta-band .section-lede{margin-left:auto;margin-right:auto}

/* ---------- contact ---------- */
.contact-box{
  border:1px solid var(--line);border-radius:var(--radius);
  padding:48px 32px;text-align:center;background:var(--card);
}
.contact-mail{
  font-family:var(--mono);font-size:clamp(19px,3.4vw,30px);
  color:var(--pulse);text-decoration:none;word-break:break-all;
}
.contact-mail:hover{text-decoration:underline}
.contact-note{color:var(--muted);max-width:520px;margin:18px auto 0;font-size:15px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:30px 24px}
.foot-inner{
  max-width:1080px;margin:0 auto;display:flex;gap:18px;align-items:baseline;flex-wrap:wrap;
}
.foot-brand{font-weight:700;letter-spacing:.14em;font-size:14px}
.foot-tag{font-family:var(--mono);font-size:12px;color:var(--muted)}
.foot-copy{margin-left:auto;font-size:13px;color:var(--muted)}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.rv-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:820px){
  .strip{grid-template-columns:1fr}
  .strip-item{border-left:none;border-top:1px solid var(--line)}
  .strip-item:first-child{border-top:none}
  .cards{grid-template-columns:1fr}
  .nav-links a:not(.nav-cta){display:none}
  .section{padding:70px 20px}
  .hero{padding:80px 20px 64px}
}