:root{
  --bg:#000;
  --glass:linear-gradient(180deg,rgba(255,255,255,.085),rgba(255,255,255,.028));
  --glass-hover:linear-gradient(180deg,rgba(255,255,255,.13),rgba(255,255,255,.045));
  --edge:rgba(255,255,255,.14);
  --edge-soft:rgba(255,255,255,.07);
  --ink:#f5f5f7;
  --ink-2:#a1a1a6;
  --ink-3:#6e6e73;
  --accent:#2997ff;
  --accent-ink:#0071e3;
  --teal:#5ee7c8;
  --violet:#b98bff;
  --shadow:0 40px 80px -40px rgba(0,0,0,.95),0 2px 0 rgba(255,255,255,.05) inset;
  --mono:ui-monospace,"SF Mono","Cascadia Mono",Consolas,monospace;
  --display:"SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI Variable Display","PingFang SC","Microsoft YaHei UI",system-ui,sans-serif;
  --text:"SF Pro Text",-apple-system,BlinkMacSystemFont,"Segoe UI Variable Text","PingFang SC","Microsoft YaHei UI",system-ui,sans-serif;
  --r:30px;
  --max:980px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--text);font-size:17px;line-height:1.6;letter-spacing:-.012em;
  -webkit-font-smoothing:antialiased;
  position:relative;overflow-x:hidden;
}
/* ambient light field */
body::before{
  content:"";position:fixed;inset:-30% -20% auto;height:130vh;z-index:-2;pointer-events:none;
  background:
    radial-gradient(48% 42% at 50% 0%,rgba(41,151,255,.30),transparent 70%),
    radial-gradient(38% 34% at 12% 22%,rgba(94,231,200,.13),transparent 72%),
    radial-gradient(42% 38% at 88% 18%,rgba(185,139,255,.14),transparent 72%);
  filter:blur(12px);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.30;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--display);margin:0;letter-spacing:-.032em;text-wrap:balance}
h1{font-size:clamp(3rem,9vw,5.4rem);font-weight:600;line-height:1.02}
h2{font-size:clamp(2rem,5.4vw,2.9rem);font-weight:600;line-height:1.1}
h3{font-size:clamp(1.5rem,4vw,2.1rem);font-weight:600;line-height:1.15}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
code{font-family:var(--mono);font-size:.82em;overflow-wrap:anywhere}
pre{position:relative;min-width:0;overflow:hidden;margin:0}
pre code{
  display:block;overflow-x:auto;font-size:13px;line-height:1.75;color:#dcdce1;
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--edge-soft);border-radius:20px;padding:20px 22px;
  box-shadow:0 1px 0 rgba(255,255,255,.07) inset,0 24px 44px -30px rgba(0,0,0,.9);
}
.mono{font-family:var(--mono)}
.break{overflow-wrap:anywhere}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.fineprint{color:var(--ink-3);font-size:14px;line-height:1.65;letter-spacing:-.01em}
.lead{font-size:clamp(1.15rem,2.6vw,1.4rem);color:var(--ink-2);letter-spacing:-.018em;line-height:1.45}
.grad{
  background:linear-gradient(96deg,#fff 8%,var(--teal) 34%,var(--accent) 62%,var(--violet) 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- nav ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:50;height:52px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(22,22,26,.55);backdrop-filter:saturate(190%) blur(24px);-webkit-backdrop-filter:saturate(190%) blur(24px);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 1px 0 rgba(0,0,0,.6);
}
.topbar-inner{width:100%;max-width:var(--max);padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:9px;color:var(--ink);font-family:var(--display);font-size:15px;font-weight:500;letter-spacing:-.01em}
.brand img{border-radius:6px;display:block;box-shadow:0 2px 6px rgba(0,0,0,.6)}
.brand:hover{text-decoration:none}
.topbar nav{display:flex;align-items:center;gap:26px;font-size:12.5px;letter-spacing:-.006em}
.topbar nav a{color:var(--ink-2)}
.topbar nav a:hover{color:var(--ink);text-decoration:none}
.topbar nav a.nav-ghost{color:var(--accent)}

/* ---------- layout ---------- */
main{padding-top:52px}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:112px 0;position:relative}
.section-head{text-align:center;max-width:44ch;margin:0 auto 68px}
.section-head p{color:var(--ink-2);margin:18px auto 0;max-width:52ch;font-size:19px;letter-spacing:-.018em}

/* ---------- hero ---------- */
.hero{padding:120px 0 88px;text-align:center}
.eyebrow{font-size:15px;color:var(--ink-2);margin-bottom:24px;letter-spacing:-.01em}
.eyebrow b{color:var(--ink);font-weight:500}
.hero h1{margin:0 auto}
.hero .lead{margin:26px auto 0;max-width:30ch}

/* product stage */
.stage{position:relative;display:grid;place-items:center;padding:56px 0 20px;isolation:isolate}
.stage::before{
  content:"";position:absolute;z-index:-1;width:min(560px,92%);height:min(560px,92%);
  background:radial-gradient(circle at 50% 42%,rgba(41,151,255,.55),rgba(94,231,200,.16) 42%,transparent 68%);
  filter:blur(46px);
}
.stage::after{
  content:"";position:absolute;z-index:-1;bottom:6px;width:min(300px,60%);height:26px;border-radius:50%;
  background:radial-gradient(ellipse at center,rgba(0,0,0,.85),transparent 72%);filter:blur(9px);
}
.appicon{
  width:clamp(112px,26vw,152px);height:clamp(112px,26vw,152px);display:block;border-radius:24%;
  box-shadow:0 34px 60px -22px rgba(0,0,0,.95),0 0 0 1px rgba(255,255,255,.16),0 1px 0 rgba(255,255,255,.4) inset;
  animation:float 7s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.stage-caption{margin-top:22px;font-size:14px;color:var(--ink-3)}

.cta-row{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;align-items:center;margin-top:34px}
.btn{
  display:inline-flex;flex-direction:column;align-items:center;gap:0;
  padding:12px 28px;border-radius:980px;border:1px solid transparent;cursor:pointer;
  font-family:var(--text);font-size:17px;font-weight:400;letter-spacing:-.014em;line-height:1.2;
  transition:transform .22s cubic-bezier(.28,.84,.42,1),box-shadow .22s,background .22s,border-color .22s;
}
.btn-sub{font-family:var(--mono);font-size:11.5px;font-weight:400;opacity:.66;letter-spacing:0}
.btn.primary{
  background:linear-gradient(180deg,#3d9bff,#0a68d8);color:#fff;
  box-shadow:0 12px 30px -12px rgba(0,113,227,.85),0 1px 0 rgba(255,255,255,.35) inset;
}
.btn.primary:hover{background:linear-gradient(180deg,#4fa5ff,#0b74e6);transform:translateY(-2px);text-decoration:none;box-shadow:0 18px 40px -14px rgba(41,151,255,.95),0 1px 0 rgba(255,255,255,.4) inset}
.btn.ghost{
  background:var(--glass);border-color:var(--edge);color:var(--ink);
  box-shadow:0 1px 0 rgba(255,255,255,.1) inset,0 18px 34px -26px rgba(0,0,0,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn.ghost:hover{border-color:rgba(255,255,255,.3);transform:translateY(-2px);text-decoration:none}
.hero-note{margin:30px auto 0;max-width:62ch;color:var(--ink-3);font-size:14px}

.specs{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(min(180px,100%),1fr));gap:1px;
  margin:56px auto 0;border-radius:var(--r);overflow:hidden;
  background:rgba(255,255,255,.09);border:1px solid var(--edge-soft);
  box-shadow:var(--shadow);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
}
.specs li{background:rgba(255,255,255,.035);padding:26px 24px;text-align:left}
.specs span{display:block;font-size:12px;color:var(--ink-3);margin-bottom:7px;letter-spacing:0}
.specs b{font-weight:500;font-size:15.5px;color:var(--ink);letter-spacing:-.01em}

/* ---------- capability features ---------- */
.feature{
  max-width:64ch;margin:0 auto 26px;text-align:center;position:relative;
  padding:44px 34px;border-radius:var(--r);
  background:var(--glass);border:1px solid var(--edge-soft);
  box-shadow:var(--shadow);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);
  transition:border-color .28s,transform .28s cubic-bezier(.28,.84,.42,1);
}
.feature:hover{border-color:var(--edge);transform:translateY(-3px)}
.feature .kicker{display:block;font-size:14px;color:var(--accent);margin-bottom:12px;letter-spacing:-.008em;font-weight:500}
.feature p{color:var(--ink-2);font-size:18px;letter-spacing:-.016em;margin:16px 0 0}
.feature dl{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:26px 0 0}
.feature dd{
  margin:0;padding:7px 14px;border-radius:980px;background:rgba(255,255,255,.06);
  border:1px solid var(--edge-soft);font-size:13.5px;color:var(--ink-2);letter-spacing:-.01em;
}
.feature code{color:#dcdce1}

.minor{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(250px,100%),1fr));gap:18px;margin-top:26px}
.minor article{
  background:var(--glass);border:1px solid var(--edge-soft);border-radius:var(--r);padding:30px 28px 26px;
  text-align:left;box-shadow:var(--shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:border-color .24s,transform .24s cubic-bezier(.28,.84,.42,1);
}
.minor article:hover{border-color:var(--edge);transform:translateY(-3px)}
.minor h3{font-size:19px;letter-spacing:-.018em;margin-bottom:9px}
.minor p{color:var(--ink-2);font-size:15px;margin:0;letter-spacing:-.01em}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:44px 28px;margin:0;text-align:center}
.stats>div{padding:26px 12px;border-radius:24px;transition:background .24s}
.stats>div:hover{background:rgba(255,255,255,.04)}
.stats dt{order:2;font-size:15px;color:var(--ink-3);margin-top:10px;letter-spacing:-.01em}
.stats dd{
  order:1;margin:0;font-family:var(--display);font-size:clamp(2.1rem,5.4vw,2.9rem);font-weight:600;
  letter-spacing:-.038em;line-height:1;
  background:linear-gradient(180deg,#fff,#a9b4c4);-webkit-background-clip:text;background-clip:text;color:transparent;
}
#measured .fineprint{max-width:56ch;margin:52px auto 0;text-align:center}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;counter-reset:s}
.steps>li{
  background:var(--glass);border:1px solid var(--edge-soft);border-radius:var(--r);
  padding:36px 36px 28px;min-width:0;text-align:left;
  box-shadow:var(--shadow);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  transition:border-color .24s;
}
.steps>li:hover{border-color:var(--edge)}
.steps h3{font-size:22px;margin-bottom:14px;display:flex;align-items:baseline;gap:12px}
.steps h3 span{font-family:var(--mono);font-size:13px;color:var(--accent);flex:none}
.steps p{color:var(--ink-2);font-size:16px}
.steps pre{margin:18px 0}
.kv{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;font-size:15px;color:var(--ink-2)}
.kv>span:first-child{font-size:12px;color:var(--ink-3);min-width:58px;letter-spacing:0}
.kv b{color:var(--ink);font-weight:500}
.kv .mono{color:var(--ink-2);font-size:12.5px}
.kv code{flex:1 1 300px;min-width:0;color:#dcdce1;background:rgba(255,255,255,.05);border:1px solid var(--edge-soft);border-radius:14px;padding:10px 13px;line-height:1.55}
.plain{display:grid;gap:11px;margin:0}
.plain li{position:relative;padding-left:19px;color:var(--ink-2);font-size:16px}
.plain li::before{content:"";position:absolute;left:3px;top:.68em;width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.7}
.copy{
  position:absolute;top:12px;right:12px;
  font-family:var(--text);font-size:12px;color:var(--ink-2);
  background:rgba(255,255,255,.09);border:1px solid var(--edge-soft);border-radius:980px;padding:5px 13px;cursor:pointer;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:background .18s,color .18s,border-color .18s;
}
.copy:hover{background:rgba(255,255,255,.18);color:var(--ink);border-color:var(--edge)}
.kv .copy{position:static}

/* ---------- table ---------- */
table{width:100%;table-layout:fixed;border-collapse:collapse;margin:0 0 26px;font-size:15.5px}
th,td{text-align:left;padding:18px 6px;border-bottom:1px solid var(--edge-soft);vertical-align:top;overflow-wrap:anywhere}
th{color:var(--ink);font-weight:400;width:min(52%,400px)}
th code{color:#dcdce1}
td{color:var(--ink-2)}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
.sub{font-family:var(--display);font-size:22px;font-weight:600;letter-spacing:-.026em;margin:52px 0 14px}

/* ---------- closing ---------- */
#license .section-head{margin-bottom:0}
#limits .plain{max-width:64ch;margin-left:auto;margin-right:auto}
#limits .plain li{text-align:left}
footer{padding:64px 0 84px;border-top:1px solid var(--edge-soft);text-align:center;background:linear-gradient(180deg,transparent,rgba(41,151,255,.05))}
footer .wrap{display:grid;gap:12px;justify-items:center}
footer p{display:flex;align-items:center;gap:9px;flex-wrap:wrap;justify-content:center;margin:0;font-size:14px;color:var(--ink-3)}
footer img{border-radius:5px}
footer .fineprint{max-width:66ch}

/* ---------- scroll reveal ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.22,.61,.36,1),transform .8s cubic-bezier(.22,.61,.36,1)}
.rv.in{opacity:1;transform:none}

@media (max-width:760px){
  section{padding:80px 0}
  .hero{padding:88px 0 64px}
  .topbar nav a:not(.nav-ghost){display:none}
  .section-head{margin-bottom:44px}
  .feature,.steps>li{padding:28px 22px 24px}
  th,td{padding-left:2px;padding-right:2px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .appicon{animation:none}
  .rv{opacity:1;transform:none;transition:none}
  .btn:hover,.feature:hover,.minor article:hover{transform:none}
}