:root{
  --bg:#f7f6f4;
  --deep:#ece9e5;
  --gr:#fff;
  --ink:#17171a;
  --mute:#615d66;
  --line:#dcd8d2;
  --rose:#b92859;
  --rl:#b92859;
  --onr:#fff;
  --mint:#15803d;
  --sky:#0369a1;
  --red:#b91c1c;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px)}

*{
  box-sizing:border-box;
  margin:0}
html{
  scroll-padding-top:env(safe-area-inset-top,0px);
  scroll-behavior:smooth}

body{
  background:var(--bg);
  color:var(--ink);
  font:16px/1.6 Inter,system-ui,sans-serif;
  -webkit-font-smoothing:antialiased}

:focus-visible{
  outline:2px solid var(--rl);
  outline-offset:2px}

.m{
  font-family:"Geist Mono",ui-monospace,Menlo,monospace}
.w{
  max-width:1160px;
  margin:0 auto;
  padding:0 24px}

nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:68px;
  gap:16px;
  flex-wrap:wrap}

.logo{
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  letter-spacing:-.02em;
  color:inherit;
  text-decoration:none}
.logo b{
  background:var(--rose);
  color:var(--onr);
  width:26px;
  height:26px;
  border-radius:7px;
  display:grid;
  place-items:center;
  font-size:13px}

nav .l a{
  color:var(--mute);
  text-decoration:none;
  font-size:14px;
  margin-right:20px;
  padding:10px 0;
  display:inline-block}

.btn{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  background:var(--rose);
  color:var(--onr);
  padding:0 20px;
  border-radius:8px;
  font:600 14px Inter,sans-serif;
  text-decoration:none}
.ghost{
  background:none;
  color:var(--ink);
  border:1px solid var(--line)}

.hero{
  padding:56px 0 24px}
.eb{
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--rl);
  margin-bottom:20px}

h1{
  font-size:clamp(40px,7vw,92px);
  line-height:.98;
  letter-spacing:-.05em;
  font-weight:700;
  max-width:12em}

.hr{
  display:flex;
  justify-content:space-between;
  align-items:end;
  gap:32px;
  flex-wrap:wrap;
  margin-top:28px}
.lede{
  color:var(--mute);
  font-size:18px;
  max-width:30em}
.cta{
  display:flex;
  gap:8px;
  flex-wrap:wrap}

.fr{
  margin-top:48px;
  background:var(--deep);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden}

.fh{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  font-size:12px;
  color:var(--mute)}
.fh b{
  color:var(--ink);
  font-weight:500}

.fg{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
@media(max-width:1050px){
  .fg{
  grid-template-columns:1fr}
}

.bd{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:8px;
  padding:16px;
  border-right:1px solid var(--line)}
@media(max-width:860px){
  .bd{
  border:0;
  border-bottom:1px solid var(--line);
  overflow-x:auto}
}

.cl{
  min-width:0}
.cl h4{
  font:500 11px "Geist Mono",monospace;
  color:var(--mute);
  text-transform:uppercase;
  margin-bottom:8px}

.cd{
  display:block;
  width:100%;
  text-align:left;
  background:var(--gr);
  border:1px solid var(--line);
  border-radius:8px;
  padding:10px;
  margin-bottom:8px;
  color:var(--ink);
  font:13px/1.35 Inter,sans-serif;
  cursor:pointer;
  min-height:44px}

.cd .k{
  display:block;
  font:500 11px "Geist Mono",monospace;
  color:var(--mute);
  margin-bottom:2px}
.cd.on,.bl.on{
  border-color:var(--rose);
  box-shadow:0 0 0 1px var(--rose)}

.dt{
  display:inline-block;
  width:7px;
  height:7px;
  border-radius:50%;
  margin-right:6px}

.cal{
  position:relative;
  padding:16px;
  overflow-x:auto}
.cg{
  display:grid;
  grid-template-columns:36px repeat(5,1fr);
  min-width:420px;
  position:relative}

.cg .d{
  font:500 11px "Geist Mono",monospace;
  color:var(--mute);
  padding-bottom:8px;
  text-align:center}
.cg .h{
  font:11px "Geist Mono",monospace;
  color:var(--mute);
  height:30px;
  border-top:1px solid var(--line)}

.col{
  position:relative;
  border-left:1px solid var(--line);
  grid-row:2/10}

.bl{
  position:absolute;
  top:var(--block-top);
  height:var(--block-height);
  left:3px;
  right:3px;
  background:var(--gr);
  border:1px solid var(--line);
  border-left:3px solid var(--rose);
  border-radius:6px;
  padding:4px 8px;
  font:500 11px/1.3 "Geist Mono",monospace;
  cursor:pointer;
  color:var(--ink);
  text-align:left}

.bl.on{
  background:var(--rose);
  color:var(--onr)}

.cap{
  padding:12px 16px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--mute)}

section{
  padding:96px 0 0}
.sec{
  display:grid;
  grid-template-columns:4fr 7fr;
  gap:56px;
  align-items:start;
  padding-bottom:96px;
  border-bottom:1px solid var(--line)}
@media(max-width:860px){
  .sec{
  grid-template-columns:1fr;
  gap:28px}
}

.lab{
  font:500 12px "Geist Mono",monospace;
  color:var(--rl);
  text-transform:uppercase;
  letter-spacing:.08em;
  margin-bottom:12px}

h2{
  font-size:clamp(28px,4vw,46px);
  line-height:1.04;
  letter-spacing:-.04em;
  font-weight:700}
.sec p.t{
  color:var(--mute);
  margin-top:16px;
  max-width:28em}

.pn{
  background:var(--gr);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  font-size:14px}

.r{
  display:grid;
  grid-template-columns:64px 1fr auto;
  gap:12px;
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  align-items:center}
.r:last-child{
  border:0}
.r .k,.r .n{
  font:12px "Geist Mono",monospace;
  color:var(--mute)}

.tag{
  font:11px "Geist Mono",monospace;
  border:1px solid var(--line);
  border-radius:5px;
  padding:1px 6px;
  color:var(--mute)}

.cm{
  padding:16px;
  border-bottom:1px solid var(--line)}
.cm:last-child{
  border:0}
.cm small{
  display:block;
  color:var(--mute);
  font-size:12px;
  margin-bottom:2px}
.mn{
  color:var(--rl);
  font-weight:500}

.adm{
  background:var(--deep)}
.pill{
  font:500 11px "Geist Mono",monospace;
  color:var(--mute);
  border:1px solid var(--line);
  border-radius:999px;
  padding:2px 10px}

.sg{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  margin-top:0}
@media(max-width:760px){
  .sg{
  grid-template-columns:1fr 1fr}
}

.sg div{
  padding:20px 20px 20px 0;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--mute)}
.sg b{
  display:block;
  color:var(--ink);
  font-size:16px}

.faq{
  display:grid;
  grid-template-columns:4fr 7fr;
  gap:56px;
  padding:96px 0}
@media(max-width:860px){
  .faq{
  grid-template-columns:1fr;
  gap:24px}
}

details{
  border-top:1px solid var(--line)}
details:last-child{
  border-bottom:1px solid var(--line)}

summary{
  cursor:pointer;
  font-weight:500;
  list-style:none;
  display:flex;
  justify-content:space-between;
  min-height:48px;
  align-items:center}
summary::after{
  content:"+";
  color:var(--rl)}
details[open] > summary::after{
  content:"–"}

details p{
  color:var(--mute);
  font-size:14px;
  padding-bottom:14px;
  max-width:40em}

.end{
  border:1px solid var(--line);
  border-radius:16px;
  padding:56px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:48px;
  background:linear-gradient(135deg,var(--deep),var(--bg))}
.end h2{
  max-width:12em}

footer{
  display:flex;
  justify-content:space-between;
  padding-bottom:32px;
  font-size:13px;
  color:var(--mute);
  flex-wrap:wrap;
  gap:8px}
footer a{
  color:inherit}


@media(max-width:700px){
  .fr{
  transform:none}
}

h1 em,h2 i{
  font-style:normal;
  color:var(--rose)}

.strip{
  border-block:1px solid var(--line);
  background:var(--deep);
  margin-top:56px}
.strip .w{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-block:16px;
  font-size:13px;
  color:var(--mute)}
.strip b{
  color:var(--rose);
  font-weight:500}

.end{
  background:var(--deep);
  color:var(--ink);
  border:1px solid var(--line);
  position:relative;
  overflow:hidden}
.end>*{
  position:relative;
  z-index:1}
.end h2{
  color:var(--ink)}
.end h2 i{
  color:var(--rose)}
.end::after{
  content:"stackx.";
  position:absolute;
  right:-8px;
  bottom:-.2em;
  font-weight:700;
  letter-spacing:-.06em;
  line-height:1;
  font-size:clamp(100px,20vw,260px);
  color:#e9467a;
  opacity:.25}

@media(prefers-reduced-motion:reduce){
  html{
  scroll-behavior:auto}
}

/* Keep the explicit preference and the no-script system default in sync. */
:root[data-theme="dark"] {
  --bg: #19171b;
  --deep: #26222a;
  --gr: #302b33;
  --ink: #f5edf3;
  --mute: #c3b6c2;
  --line: #594c5b;
  --rose: #f79ab9;
  --rl: #f79ab9;
  --onr: #3a1425;
  --mint: #8ad5a5;
  --sky: #90cbed;
  --red: #ffaaa4;
  --tool-accent-soft: #26222a;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #19171b;
    --deep: #26222a;
    --gr: #302b33;
    --ink: #f5edf3;
    --mute: #c3b6c2;
    --line: #594c5b;
    --rose: #f79ab9;
    --rl: #f79ab9;
    --onr: #3a1425;
    --mint: #8ad5a5;
    --sky: #90cbed;
    --red: #ffaaa4;
    --tool-accent-soft: #26222a;
  }
}