/* ============================================================
   ΦNET — design tokens
   Bold triad (indigo / aqua / magenta) on deep ink.
   System fonts only — zero external requests.
   ============================================================ */
:root{
  --ink:#080B16;
  --ink-2:#0C1120;
  --surface:#141B30;
  --surface-2:#1B2440;
  --line:rgba(148,163,214,.14);
  --line-strong:rgba(148,163,214,.28);

  --violet:#6D5EF7;
  --aqua:#2DE1C2;
  --magenta:#FF4D8D;

  --text:#EAF0FF;
  --muted:#8C97BD;
  --dim:#5E698F;

  --grad-signal:linear-gradient(115deg,var(--violet),var(--aqua));
  --grad-hot:linear-gradient(115deg,var(--magenta),var(--violet));
  --glow:0 0 40px rgba(109,94,247,.35);

  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Code",Menlo,Consolas,monospace;

  --wrap:1140px;
  --r:18px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--ink);color:var(--text);
  font-family:var(--sans);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
/* ambient field */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(60% 50% at 78% -5%,rgba(109,94,247,.22),transparent 60%),
    radial-gradient(50% 45% at 12% 8%,rgba(45,225,194,.12),transparent 60%),
    radial-gradient(45% 40% at 90% 90%,rgba(255,77,141,.10),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(120% 80% at 50% 0,#000,transparent 75%);
          mask-image:radial-gradient(120% 80% at 50% 0,#000,transparent 75%);
}
a{color:inherit;text-decoration:none}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:12px;z-index:99;background:var(--surface);padding:10px 14px;border-radius:10px}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:22px;
  max-width:var(--wrap);margin:0 auto;padding:18px 24px;
}
.nav::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:rgba(8,11,22,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  -webkit-mask:linear-gradient(#000,#000);
}
.brand{display:flex;align-items:center;font-weight:800;letter-spacing:-.02em;font-size:22px}
.brand-mark{
  font-size:26px;background:var(--grad-signal);-webkit-background-clip:text;
  background-clip:text;color:transparent;margin-right:1px;
}
.brand-word{color:var(--text)}
.nav-links{display:flex;gap:6px;margin-left:14px}
.nav-links a{
  color:var(--muted);font-size:15px;font-weight:600;
  padding:8px 14px;border-radius:10px;transition:.18s;
}
.nav-links a:hover{color:var(--text);background:var(--surface)}
.nav-links a.active{color:var(--text)}
.nav-links a.active::after{
  content:"";display:block;height:2px;margin-top:4px;border-radius:2px;background:var(--grad-signal);
}
.nav-cta{
  margin-left:auto;font-weight:700;font-size:15px;padding:10px 18px;border-radius:12px;
  background:var(--grad-signal);color:#0a0e1a;box-shadow:var(--glow);transition:.2s;
}
.nav-cta:hover{transform:translateY(-1px)}
.nav-toggle{display:none}

/* ---------- layout ---------- */
.view{max-width:var(--wrap);margin:0 auto;padding:0 24px;min-height:60vh}
.page{animation:rise .5s cubic-bezier(.2,.7,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
section{padding:76px 0}
.eyebrow{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--aqua);margin:0 0 14px;
}
h1,h2,h3{letter-spacing:-.03em;line-height:1.04;margin:0}
h1{font-size:clamp(40px,7vw,74px);font-weight:800}
h2{font-size:clamp(28px,4vw,44px);font-weight:800}
h3{font-size:20px;font-weight:700;letter-spacing:-.01em}
p{color:var(--muted)}
.lead{font-size:clamp(18px,2.4vw,22px);color:#C3CBE6;max-width:56ch}
.grad{background:var(--grad-signal);-webkit-background-clip:text;background-clip:text;color:transparent}
.grad-hot{background:var(--grad-hot);-webkit-background-clip:text;background-clip:text;color:transparent}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:15.5px;
  padding:13px 22px;border-radius:13px;border:1px solid transparent;cursor:pointer;transition:.2s;
}
.btn-primary{background:var(--grad-signal);color:#08101e;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--violet)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- hero ---------- */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:64px 0 40px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12.5px;
  color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:7px 14px;margin-bottom:26px;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--aqua);box-shadow:0 0 12px var(--aqua);
  animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1 span{display:block}
.hero .lead{margin-top:22px}

.stat-strip{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.stat{
  flex:1;min-width:130px;background:linear-gradient(180deg,var(--surface),rgba(20,27,48,.4));
  border:1px solid var(--line);border-radius:14px;padding:16px 18px;
}
.stat .n{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--text);letter-spacing:-.02em}
.stat .n.live{background:var(--grad-signal);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .l{font-size:12.5px;color:var(--dim);text-transform:uppercase;letter-spacing:.12em;margin-top:3px}

/* hero diagram */
.hero-art{position:relative}
.hero-art svg{width:100%;height:auto;overflow:visible}
.node-label{font-family:var(--mono);font-size:11px;fill:var(--muted)}
.pkt{filter:drop-shadow(0 0 6px var(--aqua))}

/* ---------- feature cards ---------- */
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{
  background:linear-gradient(180deg,var(--surface),rgba(18,24,44,.5));
  border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.22s;
}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.card .ic{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(109,94,247,.14);border:1px solid var(--line-strong);font-size:20px;
}
.card h3{margin-bottom:8px}
.card p{font-size:15.5px;margin:0}

/* section head */
.sec-head{max-width:60ch;margin-bottom:40px}
.sec-head p{font-size:17px;margin-top:12px}

/* ---------- how it works flow ---------- */
.flow{display:grid;gap:18px}
.step{
  display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px 26px;
}
.step .idx{
  font-family:var(--mono);font-size:14px;font-weight:700;color:#08101e;
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--grad-signal);
}
.step h3{margin-bottom:6px}
.step p{margin:0;font-size:15.5px}

/* ---------- code blocks ---------- */
.code{
  position:relative;background:#05070F;border:1px solid var(--line-strong);border-radius:14px;
  font-family:var(--mono);font-size:13.5px;line-height:1.7;color:#C7D2F5;
  padding:18px 20px;overflow-x:auto;margin:14px 0;
}
.code .c{color:var(--dim)}
.code .k{color:var(--aqua)}
.copy{
  position:absolute;top:10px;right:10px;font-family:var(--sans);font-size:12px;font-weight:600;
  color:var(--muted);background:var(--surface-2);border:1px solid var(--line);border-radius:8px;
  padding:5px 10px;cursor:pointer;transition:.15s;
}
.copy:hover{color:var(--text);border-color:var(--violet)}

/* ---------- relay guide ---------- */
.guide{display:grid;grid-template-columns:1fr;gap:22px;max-width:820px}
.req{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{font-family:var(--mono);font-size:13px;color:var(--muted);background:var(--surface);
  border:1px solid var(--line);border-radius:999px;padding:7px 14px}
.chip b{color:var(--aqua);font-weight:600}

/* ---------- stats page ---------- */
.stat-hero{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:8px 0 34px}
.stat-big{background:linear-gradient(180deg,var(--surface),rgba(18,24,44,.5));
  border:1px solid var(--line);border-radius:var(--r);padding:24px}
.stat-big .n{font-family:var(--mono);font-size:38px;font-weight:700;letter-spacing:-.03em}
.stat-big .l{color:var(--dim);font-size:13px;text-transform:uppercase;letter-spacing:.12em;margin-top:6px}
.relay-tbl{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:13.5px}
.relay-tbl th{text-align:left;color:var(--dim);font-weight:600;text-transform:uppercase;
  letter-spacing:.1em;font-size:11.5px;padding:12px 14px;border-bottom:1px solid var(--line-strong)}
.relay-tbl td{padding:14px;border-bottom:1px solid var(--line);color:var(--muted)}
.relay-tbl tr:hover td{background:var(--surface)}
.pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--aqua)}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--aqua);box-shadow:0 0 8px var(--aqua)}
.notice{border:1px solid var(--line-strong);background:rgba(255,77,141,.06);border-radius:14px;
  padding:18px 20px;color:#C3CBE6;font-size:15px}
.muted-note{color:var(--dim);font-size:13.5px;font-family:var(--mono);margin-top:18px}

/* cta band */
.band{
  margin:40px 0 90px;text-align:center;padding:64px 28px;border-radius:26px;
  background:radial-gradient(120% 140% at 50% 0,rgba(109,94,247,.22),transparent 70%),var(--ink-2);
  border:1px solid var(--line-strong);
}
.band h2{margin-bottom:14px}
.band p{max-width:52ch;margin:0 auto 12px}

/* footer */
.foot{border-top:1px solid var(--line);margin-top:40px}
.foot-in{max-width:var(--wrap);margin:0 auto;padding:44px 24px;display:grid;
  grid-template-columns:auto 1fr auto;gap:28px;align-items:center}
.foot-brand{font-weight:800;font-size:20px}
.foot-note{font-size:14px;color:var(--dim);margin:0;max-width:52ch}
.foot-links{display:flex;gap:18px;flex-wrap:wrap}
.foot-links a{color:var(--muted);font-size:14px}
.foot-links a:hover{color:var(--text)}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:36px}
  .hero-art{order:-1;max-width:420px}
  .g3{grid-template-columns:1fr 1fr}
  .stat-hero{grid-template-columns:1fr 1fr}
  .foot-in{grid-template-columns:1fr;text-align:left}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex;flex-direction:column;gap:5px;margin-left:auto;background:none;border:0;cursor:pointer;padding:8px}
  .nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.2s}
  .nav.open .nav-links{
    display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;gap:2px;
    background:var(--ink-2);border-bottom:1px solid var(--line);padding:12px 24px 20px;
  }
  .nav.open .nav-links a{padding:12px 8px}
}
@media(max-width:560px){
  .g3,.g2{grid-template-columns:1fr}
  section{padding:54px 0}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001s!important;transition-duration:.001s!important}
  html{scroll-behavior:auto}
}