:root {
  --night: #120d2e;
  --dusk: #241a52;
  --accent: #8f78ff;
  --accent-soft: rgba(143, 120, 255, 0.16);
  --teal: #40bfd9;
  --text: #f2f0ff;
  --muted: #b7b1d9;
  --card: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.12);
  --radius: 18px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(60rem 40rem at 15% -10%, rgba(143, 120, 255, 0.35), transparent 60%),
    radial-gradient(50rem 35rem at 100% 10%, rgba(64, 191, 217, 0.18), transparent 60%),
    linear-gradient(180deg, var(--dusk) 0%, var(--night) 55%);
  background-color: var(--night);
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
}

.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; font-size: 18px; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }

nav.links { display: flex; gap: 18px; flex-wrap: wrap; font-size: 15px; }
nav.links a { color: var(--muted); }
nav.links a:hover, nav.links a.current { color: var(--text); text-decoration: none; }

.hero { text-align: center; padding: 56px 0 40px; }
.hero img.icon { width: 128px; height: 128px; border-radius: 28px; box-shadow: 0 20px 60px rgba(143, 120, 255, 0.35); }
.hero h1 { font-size: clamp(34px, 6vw, 54px); line-height: 1.1; margin: 28px 0 12px; letter-spacing: -0.02em; }
.hero p.lead { font-size: clamp(17px, 2.4vw, 21px); color: var(--muted); max-width: 640px; margin: 0 auto 28px; }

.buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.button {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 16px;
  background: var(--accent); color: #fff;
}
.button:hover { text-decoration: none; filter: brightness(1.08); }
.button.secondary { background: var(--card); color: var(--text); border: 1px solid var(--line); }
.note { color: var(--muted); font-size: 14px; margin-top: 14px; }

section { padding: 36px 0; }
section h2 { font-size: 28px; margin: 0 0 18px; letter-spacing: -0.01em; }
section > p { color: var(--muted); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .glyph { font-size: 24px; margin-bottom: 8px; }

ol.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
ol.steps > li {
  counter-increment: step; position: relative;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px 18px 64px; margin-bottom: 12px;
}
ol.steps > li::before {
  content: counter(step); position: absolute; left: 18px; top: 16px;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
ol.steps h3 { margin: 0 0 4px; font-size: 18px; }
ol.steps p { margin: 4px 0; color: var(--muted); }

.prose { max-width: 720px; }
.prose h1 { font-size: 36px; margin: 40px 0 8px; }
.prose h2 { font-size: 22px; margin: 32px 0 8px; }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--text); }

code, kbd {
  font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.92em;
  background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px;
}

footer { border-top: 1px solid var(--line); margin-top: 48px; padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer .row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 560px) {
  header.top { flex-direction: column; align-items: flex-start; }
  ol.steps > li { padding-left: 56px; }
}