/* margin.win — brand tokens, dark-only */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#000; --surface:#0a0a0a; --control:#141414; --hairline:#1c1c1e;
  --green:#2fd158; --text:#f5f5f5; --body:#c8c8cd; --text3:#5c5c62;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;
     font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue",sans-serif}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}

/* nav */
nav{position:sticky;top:0;background:rgba(0,0,0,.86);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--hairline);z-index:10}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.lockup{display:flex;align-items:center;gap:12px}
.lockup img{width:28px;height:28px;transform:translateY(-3px)}
.lockup span{font-size:15px;font-weight:800;letter-spacing:.16em}
nav .dl{font-size:14px;font-weight:600;color:var(--green)}

/* hero */
.hero{background:linear-gradient(180deg,#0c130e 0%,#000 60%)}
.hero .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;
            padding-top:96px;padding-bottom:0}
.hero h1{font-size:clamp(44px,7vw,76px);font-weight:700;letter-spacing:-1px;line-height:1.05}
.hero .sub{font-size:19px;line-height:1.55;color:var(--body);margin:24px 0 36px;max-width:440px}
.badge img{height:54px;width:auto}
.hero .art{align-self:end}
.hero .art img{margin-bottom:-6%}
.hero .copy{padding-bottom:96px}

/* feature slices */
.slice{border-top:1px solid var(--hairline)}
.slice .wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
             padding-top:96px;padding-bottom:96px}
.slice .kicker{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--green);
               text-transform:uppercase;margin-bottom:14px}
.slice h2{font-size:clamp(30px,4vw,44px);font-weight:700;letter-spacing:-.5px;line-height:1.1}
.slice p{font-size:17px;line-height:1.55;color:var(--body);margin-top:16px;max-width:400px}
.slice .art img{max-height:640px;width:auto;margin:0 auto}
@media (min-width:900px){ .slice.flip .copy{order:2} .slice.flip .art{order:1} }

/* CTA band */
.cta{padding:32px 0 96px}
.cta .card{background:var(--surface);border:1px solid var(--hairline);border-radius:16px;
           text-align:center;padding:80px 24px}
.cta h2{font-size:clamp(28px,4vw,40px);font-weight:700;letter-spacing:-.5px;margin-bottom:32px}
.cta .badge{display:inline-block}

/* footer */
footer{border-top:1px solid var(--hairline);padding:40px 0}
footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer .left{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text3)}
footer .left img{width:20px;height:20px;transform:translateY(-2px)}
footer .links{display:flex;gap:24px;font-size:13px}
footer .links a{color:var(--text3)}
footer .links a:hover{color:var(--body)}
footer .links a.mail{color:var(--green)}

/* prose pages (privacy / support) */
.prose{max-width:720px;margin:0 auto;padding:72px 24px 96px}
.prose h1{font-size:clamp(34px,5vw,48px);font-weight:700;letter-spacing:-.5px;margin-bottom:12px}
.prose .meta{font-size:14px;color:var(--text3);margin-bottom:48px}
.prose h2{font-size:22px;font-weight:700;margin:40px 0 12px}
.prose p,.prose li{font-size:16px;line-height:1.7;color:var(--body)}
.prose ul{padding-left:22px;margin:12px 0}
.prose a{color:var(--green)}
.contact-card{background:var(--surface);border:1px solid var(--hairline);border-radius:16px;
              padding:40px;text-align:center;margin:40px 0}
.contact-card .mailbtn{display:inline-block;background:var(--green);color:#000;font-weight:700;
              font-size:17px;padding:14px 28px;border-radius:999px}
.contact-card p{margin-top:14px;font-size:14px;color:var(--text3)}
details{border-top:1px solid var(--hairline);padding:20px 0}
details:last-of-type{border-bottom:1px solid var(--hairline)}
summary{font-size:17px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between}
summary::after{content:"+";color:var(--text3);font-weight:400}
details[open] summary::after{content:"–"}
details p{margin-top:12px}

/* responsive */
@media (max-width:899px){
  .hero .wrap,.slice .wrap{grid-template-columns:1fr;gap:40px}
  .hero .copy{padding-bottom:0}
  .hero .art img{margin-bottom:-10%}
  .slice .art img{max-height:520px}
}