:root {
  --background: #0b0d0e;
  --panel: #121617;
  --line: #2a3032;
  --foreground: #f7f7f2;
  --muted: #a3a8aa;
  --lime: #d9ff32;
  --black: #080909;
}

* { box-sizing: border-box; }
html { background: var(--background); color-scheme: dark; scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at 82% 8%, rgba(217,255,50,.12), transparent 24rem), var(--background);
  color: var(--foreground);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
}
a { color: inherit; text-decoration: none; }
.site-header, footer, .hero, .feature-grid, .content {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}
.site-header {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .08em;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--lime);
  color: var(--black);
  font-size: 23px;
}
nav, footer div { display: flex; gap: 24px; }
nav a, footer a { color: var(--muted); font-size: 14px; }
nav a:hover, footer a:hover { color: var(--lime); }
.hero { padding: 112px 0 96px; }
.eyebrow, .number {
  color: var(--lime);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
}
h1 {
  max-width: 850px;
  margin: 18px 0 24px;
  font-size: clamp(48px, 8vw, 96px);
  line-height: 1.02;
  letter-spacing: -.055em;
}
.lead {
  max-width: 680px;
  margin: 0;
  color: #c9cdce;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.9;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-weight: 750;
}
.button.primary { border-color: var(--lime); background: var(--lime); color: var(--black); }
.button.secondary:hover { border-color: var(--lime); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--line);
}
.feature-grid article { min-height: 250px; padding: 34px; background: var(--panel); }
.feature-grid h2 { margin: 42px 0 12px; font-size: 23px; }
.feature-grid p, .content p, .content li { color: var(--muted); line-height: 1.9; }
.content { max-width: 820px; padding: 80px 0 110px; }
.content h1 { margin-top: 12px; font-size: clamp(40px, 6vw, 68px); }
.content .updated {
  margin-bottom: 56px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
}
.content section { padding: 30px 0; border-top: 1px solid var(--line); }
.content h2 { margin: 0 0 13px; font-size: 23px; }
.content ul, .content ol { padding-left: 1.3rem; }
.content a { color: var(--lime); text-decoration: underline; text-underline-offset: 3px; }
.notice {
  margin: 28px 0;
  padding: 20px 22px;
  border: 1px solid rgba(217,255,50,.36);
  border-radius: 14px;
  background: rgba(217,255,50,.06);
}
footer {
  min-height: 120px;
  margin-top: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
@media (max-width: 760px) {
  .site-header, footer, .hero, .feature-grid, .content { width: min(100% - 28px, 1120px); }
  .site-header { min-height: 72px; }
  nav { gap: 14px; }
  .hero { padding: 72px 0 64px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article { min-height: 210px; }
  .content { padding-top: 58px; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: 18px; }
}