:root{
  --bg: #0f1115;
  --panel: #141824;
  --text: #f2f5ff;
  --muted: rgba(242,245,255,.72);
  --faint: rgba(242,245,255,.12);
  --accent: #b8c7ff;
  --max: 960px;
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 900px at 15% 10%, rgba(184,199,255,.12), transparent 55%),
              radial-gradient(900px 900px at 90% 20%, rgba(255,255,255,.06), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a{color: var(--text); text-decoration: none}
a:hover{color: var(--accent)}
.container{
  max-width: var(--max);
  padding: 0 18px;
  margin: 0 auto;
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(12px);
  background: linear-gradient(to bottom, rgba(15,17,21,.88), rgba(15,17,21,.56));
  border-bottom: 1px solid var(--faint);
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: 64px;
  gap: 16px;
}
.brand{
  display:flex;
  align-items:center;
  gap: 12px;
  min-width: 140px;
}
.brand svg{width:42px;height:auto; color: var(--text)}
.brand .wordmark{
  font-weight: 650;
  letter-spacing: .04em;
  opacity: .95;
}

.lang{
  display:flex;
  align-items:center;
  gap: 10px;
  font-size: 14px;
  color: var(--muted);
}
.lang button{
  appearance:none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 999px;
  cursor:pointer;
  letter-spacing: .04em;
}
.lang button[aria-pressed="true"]{
  color: var(--text);
  border-color: var(--faint);
  background: rgba(242,245,255,.06);
}
.lang .globe{
  display:none;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--faint);
  background: rgba(242,245,255,.04);
  color: var(--text);
}

main{padding: 34px 0 70px}

.hero{
  padding: 26px 0 18px;
}
.kicker{
  display:flex;
  align-items:center;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.kicker .dot{
  width: 8px; height: 8px; border-radius: 99px;
  background: rgba(184,199,255,.55);
  box-shadow: 0 0 24px rgba(184,199,255,.35);
}
.h1{
  margin: 14px 0 10px;
  font-size: clamp(44px, 7vw, 74px);
  letter-spacing: -0.04em;
  line-height: 1.06;
  font-weight: 760;
}
.subtitle{
  max-width: 62ch;
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--muted);
  margin: 0 0 18px;
}
.cta{
  display:flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items:center;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 999px;
  border: 1px solid var(--faint);
  background: rgba(242,245,255,.04);
  color: var(--text);
}
.pill small{color: var(--muted)}
.pill code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 14px;
}
.grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
  margin-top: 18px;
}
.card{
  border: 1px solid var(--faint);
  background: linear-gradient(180deg, rgba(242,245,255,.05), rgba(242,245,255,.03));
  border-radius: var(--radius);
  padding: 18px 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.card h2{
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: .02em;
}
.card ul{margin: 10px 0 0; padding-left: 18px; color: var(--muted)}
.card li{margin: 8px 0}
.badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top: 12px;
}
.badge{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--faint);
  color: var(--muted);
  background: rgba(242,245,255,.03);
  font-size: 13px;
}

.footer{
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--faint);
  color: var(--muted);
  font-size: 13px;
  display:flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}
.footer a{color: var(--muted)}
.footer a:hover{color: var(--accent)}

.notice{
  margin-top: 10px;
  color: rgba(242,245,255,.6);
  font-size: 12px;
}

@media (max-width: 860px){
  .grid{grid-template-columns: 1fr; }
}
@media (max-width: 520px){
  .lang{gap: 6px}
  .lang button{display:none}
  .lang .globe{display:inline-flex; align-items:center; justify-content:center}
}