/* Bitlane / ProTerm — Linear-anchored tokens, set to the hero image's field so the
   two merge. No JavaScript, no build step. */

:root{
  color-scheme: dark;
  --bg-top:#202049;      /* matches the top of the hero image */
  --bg-mid:#14132b;
  --bg:#0e0e1a;          /* matches the bottom of the hero image */
  --surface:#17172b;
  --elev:#20203a;
  --line:#2a2a44;
  --line2:#373754;
  --fg:#ececf2;
  --muted:#9b9bb4;
  --faint:#6d6d88;
  --accent:#8a93ee;
  --accent-hi:#a2aaf6;
  --radius:8px;
  --radius-card:14px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--fg);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  background-color:var(--bg);
  background-image:linear-gradient(180deg, var(--bg-top) 0%, var(--bg-mid) 55%, var(--bg) 100%);
  background-attachment:fixed;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hi);text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3{letter-spacing:-0.02em;line-height:1.15;margin:0}
p{margin:0}
code,.mono{font-family:var(--mono);font-size:.9em}

.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
.narrow{max-width:720px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{position:sticky;top:0;z-index:20;
  background:var(--bg-top);
  background:color-mix(in srgb, var(--bg-top) 62%, transparent);
  backdrop-filter:saturate(140%) blur(12px)}
.site-header .wrap{display:flex;align-items:center;gap:20px;height:60px}
.brand{display:flex;align-items:center;gap:9px;font-weight:600;color:var(--fg)}
.brand:hover{color:var(--fg);text-decoration:none}
.brand img{width:24px;height:24px;border-radius:6px}
.brand .prod{color:var(--muted);font-weight:500}
.nav{margin-left:auto;display:flex;align-items:center;gap:20px}
.nav a{color:var(--muted);font-size:14px}
.nav a:hover{color:var(--fg);text-decoration:none}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:9px;padding:11px 18px;border-radius:var(--radius);
  font-size:14px;font-weight:600;border:1px solid transparent;transition:background .15s,border-color .15s,color .15s}
.btn:hover{text-decoration:none}
.btn-primary{background:#fff;color:#16162a}
.btn-primary:hover{background:#e9e9ef;color:#16162a}
.btn-ghost{border-color:var(--line2);color:var(--fg)}
.btn-ghost:hover{border-color:var(--muted);background:color-mix(in srgb, var(--fg) 8%, transparent);color:var(--fg)}
.btn-disabled{background:color-mix(in srgb, var(--fg) 10%, transparent);color:var(--muted);border-color:var(--line2);cursor:default}
.btn-disabled:hover{color:var(--muted)}

/* Hero */
.hero{padding:74px 0 88px}
.hero-grid{display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin:0 0 16px}
.hero h1{font-size:clamp(36px,5.6vw,58px);font-weight:600;letter-spacing:-0.035em}
.lead{color:var(--muted);font-size:clamp(16px,1.9vw,19px);margin:20px 0 0;max-width:44ch}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.proof{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:26px;
  font-family:var(--mono);font-size:12px;color:var(--muted)}
.proof span::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;
  background:var(--accent);margin-right:7px;vertical-align:middle}
.hero-art{display:flex;justify-content:center}
/* the hero art is pre-feathered to alpha, so it dissolves into the field; no frame */
.hero-art img{width:100%;max-width:470px;height:auto;border:none;box-shadow:none}

/* Section 2 — three points */
.band{padding:20px 0 84px}
.points{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.point{border:1px solid var(--line);border-radius:var(--radius-card);
  background:color-mix(in srgb, var(--surface) 72%, transparent);padding:22px}
.point h3{font-size:16px;font-weight:600;margin-bottom:8px}
.point p{color:var(--muted);font-size:14.5px;margin:0}
.band-foot{margin-top:28px;font-size:14.5px}

/* Footer */
.site-footer{padding:34px 0 48px;color:var(--muted);font-size:14px;
  border-top:1px solid color-mix(in srgb, var(--fg) 8%, transparent)}
.site-footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.site-footer .brand{font-size:14px}
.site-footer a{color:var(--muted)}
.site-footer a:hover{color:var(--fg)}

/* Legal pages */
.legal-head{padding:52px 0 8px}
.legal-head .eyebrow{margin-bottom:10px}
.legal-head h1{font-size:clamp(28px,4vw,38px)}
.legal-body{padding:8px 0 80px}
.legal-meta{background:color-mix(in srgb, var(--surface) 72%, transparent);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:18px 20px;margin:26px 0}
.legal-meta p{margin:3px 0;font-size:14px;color:var(--muted)}
.legal-meta b{color:var(--fg);font-weight:600}
.legal-body>p{margin:14px 0}
.legal-body h2{font-size:19px;margin:40px 0 8px;letter-spacing:-0.01em}
.legal-body ul{padding-left:22px}
.legal-body li{margin:7px 0}
.legal-body code{background:color-mix(in srgb, var(--fg) 10%, transparent);border:1px solid var(--line);border-radius:5px;padding:1px 6px}

@media (max-width:820px){
  .hero{padding:52px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-art{order:-1}
  .hero-art img{max-width:330px}
  .points{grid-template-columns:1fr}
}
@media (max-width:560px){
  .wrap,.narrow{padding:0 18px}
  .nav{gap:14px}
}