:root {
  --bg: #ffffff;
  --surface: #f5f7f9;
  --text: #10161d;
  --muted: #5a6672;
  --accent: #0f9b8e;
  --accent-dark: #0b7d72;
  --border: #e2e8ed;
  --radius: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1117;
    --surface: #131c25;
    --text: #eef3f7;
    --muted: #9aa8b5;
    --accent: #2dd4bf;
    --accent-dark: #14b8a6;
    --border: #223040;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 720px; margin: 0 auto; padding: 32px 22px 72px; }

header.site {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 22px;
  max-width: 720px;
  margin: 0 auto;
}

.logo {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--accent), var(--accent-dark));
  display: grid; place-items: center;
  color: #fff; font-weight: 700; font-size: 20px;
  flex: none;
}

.brand { font-weight: 700; font-size: 20px; letter-spacing: -0.2px; }
.brand a { color: inherit; text-decoration: none; }

h1 { font-size: 34px; line-height: 1.2; letter-spacing: -0.6px; margin: 18px 0 10px; }
h2 { font-size: 21px; letter-spacing: -0.3px; margin: 34px 0 10px; }
h3 { font-size: 17px; margin: 24px 0 6px; }

p, li { color: var(--text); }
.lede { font-size: 19px; color: var(--muted); }
.muted { color: var(--muted); }
small, .small { font-size: 14px; color: var(--muted); }

a { color: var(--accent-dark); }
@media (prefers-color-scheme: dark) { a { color: var(--accent); } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin: 18px 0;
}

.grid { display: grid; gap: 14px; margin: 22px 0; }
@media (min-width: 620px) { .grid.two { grid-template-columns: 1fr 1fr; } }

.feature { display: flex; gap: 12px; align-items: flex-start; }
.feature .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent); margin-top: 9px; flex: none;
}
.feature strong { display: block; }
.feature span { color: var(--muted); font-size: 15px; }

.btn {
  display: inline-block;
  background: var(--accent-dark);
  color: #fff !important;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 999px;
  margin: 6px 8px 6px 0;
}
.btn.secondary {
  background: transparent;
  color: var(--text) !important;
  border: 1px solid var(--border);
}

ul { padding-left: 20px; }
li { margin: 6px 0; }

footer.site {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 22px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}
footer.site a { color: var(--muted); margin: 0 8px; }