:root {
  color-scheme: light dark;
  --night: #111831;
  --ink: #17202a;
  --paper: #fff8ee;
  --coral: #ff795e;
  --dusk: #6657a5;
  --muted: #6f7480;
  --line: rgba(23, 32, 42, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 88% 4%, rgba(102, 87, 165, 0.22), transparent 30rem),
    var(--paper);
  color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "SF Pro Text", Inter, sans-serif;
}

a { color: var(--dusk); text-underline-offset: 0.18em; }
a:hover { color: var(--coral); }

.shell { width: min(760px, calc(100% - 40px)); margin: 0 auto; }

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; font-weight: 760; }
.mark { position: relative; width: 34px; height: 34px; overflow: hidden; border-radius: 9px; background: var(--night); }
.mark::before { content: ""; position: absolute; width: 19px; height: 19px; border-radius: 50%; background: var(--coral); left: 7.5px; top: 8px; }
.mark::after { content: ""; position: absolute; width: 28px; height: 16px; border-radius: 0 0 50% 50%; background: var(--dusk); left: 3px; bottom: 4px; }
.links { display: flex; gap: 18px; font-size: 14px; }
.links a { color: var(--muted); text-decoration: none; }

main { padding: 72px 0 88px; }
.eyebrow { margin: 0 0 10px; color: var(--coral); font-size: 13px; font-weight: 780; letter-spacing: 0.12em; text-transform: uppercase; }
h1 { max-width: 680px; margin: 0; font-size: clamp(42px, 8vw, 72px); line-height: 0.98; letter-spacing: -0.05em; }
.lede { max-width: 620px; margin: 28px 0 0; color: var(--muted); font-size: clamp(19px, 3vw, 23px); line-height: 1.45; }
.cta { display: inline-flex; margin-top: 30px; padding: 13px 18px; border-radius: 14px; background: var(--night); color: white; font-weight: 700; text-decoration: none; }
.cta:hover { color: white; background: var(--dusk); }

.card { margin-top: 56px; padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,0.58); box-shadow: 0 18px 60px rgba(17,24,49,0.07); }
.card h2, article h2 { margin: 0 0 8px; font-size: 24px; letter-spacing: -0.025em; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.step { padding: 18px; border-radius: 18px; background: rgba(102,87,165,0.08); }
.step b { display: block; margin-bottom: 5px; }

article { max-width: 700px; }
article h1 { font-size: clamp(40px, 7vw, 60px); }
article h2 { margin-top: 38px; }
article h3 { margin-top: 28px; }
article p, article li { color: #444a55; }
article li + li { margin-top: 8px; }
.updated { color: var(--muted); font-size: 14px; }
.callout { padding: 18px 20px; border-left: 4px solid var(--coral); border-radius: 0 14px 14px 0; background: rgba(255,121,94,0.08); }

footer { padding: 30px 0 46px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }

@media (max-width: 620px) {
  .links { gap: 12px; }
  .steps { grid-template-columns: 1fr; }
  main { padding-top: 48px; }
}

@media (prefers-color-scheme: dark) {
  :root { --ink: #fff8ee; --paper: #111526; --muted: #b8bac4; --line: rgba(255,255,255,0.14); }
  body { background: radial-gradient(circle at 88% 4%, rgba(102,87,165,0.3), transparent 30rem), var(--paper); }
  article p, article li { color: #d6d5dc; }
  .card { background: rgba(255,255,255,0.055); }
  .brand { color: var(--ink); }
}