:root {
  color-scheme: dark;
  --canvas: #0d0e12;
  --surface: #15171d;
  --raised: #1a1c23;
  --divider: #292c34;
  --text: #f2f3f5;
  --secondary: #a0a5af;
  --tertiary: #737984;
  --amber: #d4a04c;
  --amber-soft: rgba(212, 160, 76, 0.12);
  --green: #64c59b;
  --max: 940px;
}

* { box-sizing: border-box; }

html { background: var(--canvas); }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(800px 500px at 90% -10%, rgba(212, 160, 76, 0.14), transparent 70%),
    radial-gradient(720px 620px at -15% 65%, rgba(110, 182, 242, 0.06), transparent 72%),
    var(--canvas);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: var(--amber); text-underline-offset: 3px; }
a:hover { color: #ebbd72; }

.site-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(13, 14, 18, 0.78);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  width: min(calc(100% - 40px), var(--max));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  color: var(--text);
  font-weight: 650;
  text-decoration: none;
}

.mark {
  width: 34px;
  height: 34px;
  border: 1px solid rgba(212, 160, 76, 0.38);
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: var(--amber-soft);
  color: var(--amber);
}

.nav-link {
  color: var(--secondary);
  font-size: 0.94rem;
  text-decoration: none;
}

.nav-link:hover, .nav-link[aria-current="page"] { color: var(--text); }

main {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 76px 0 96px;
}

.hero { max-width: 780px; padding: 34px 0 54px; }

.eyebrow {
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.18; letter-spacing: -0.025em; }
h1 { margin: 18px 0; font-size: clamp(2.55rem, 7vw, 4.5rem); }
h2 { margin-top: 2.4rem; font-size: 1.55rem; }
h3 { margin-top: 1.8rem; font-size: 1.08rem; }

.lede { margin: 0; color: var(--secondary); font-size: clamp(1.08rem, 2.5vw, 1.28rem); }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.button {
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  font-weight: 650;
  text-decoration: none;
}

.button.primary { border-color: var(--amber); background: var(--amber); color: #101114; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.card, .callout {
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 10px;
  background: rgba(26, 28, 35, 0.78);
}

.card { padding: 24px; }
.card h2, .card h3 { margin-top: 0; }
.card p { margin-bottom: 0; color: var(--secondary); }

.callout { padding: 20px 22px; margin: 26px 0; }
.callout strong { color: var(--green); }

.document { max-width: 800px; }
.document > h1 { font-size: clamp(2.3rem, 6vw, 3.5rem); }
.document p, .document li { color: #c8cbd1; }
.document li + li { margin-top: 0.55rem; }
.meta { color: var(--tertiary); font-size: 0.92rem; }

code {
  padding: 0.15em 0.38em;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 5px;
  background: #090a0d;
  color: #dce5f1;
}

.steps { padding: 0; list-style: none; counter-reset: step; }
.steps li { position: relative; padding: 0 0 24px 48px; counter-increment: step; }
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--amber-soft);
  color: var(--amber);
  font-weight: 700;
  font-size: 0.88rem;
}

footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--tertiary);
}

.footer-inner {
  width: min(calc(100% - 40px), var(--max));
  min-height: 92px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.88rem;
}

.footer-links { display: flex; gap: 18px; }

@media (max-width: 720px) {
  .nav { flex-wrap: wrap; padding: 14px 0; }
  .brand { width: 100%; }
  main { padding-top: 46px; }
  .grid { grid-template-columns: 1fr; }
  .footer-inner { padding: 22px 0; align-items: flex-start; flex-direction: column; }
}