:root {
  --blue: #0087f5;
  --indigo: #6b4dfa;
  --bg: #f7f8fc;
  --card: #ffffff;
  --text: #14161f;
  --muted: #5b6070;
  --line: #e3e6f0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1018;
    --card: #171a26;
    --text: #eef0f8;
    --muted: #a0a6bb;
    --line: #272b3b;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--blue); }
header, main, footer { max-width: 720px; margin: 0 auto; padding: 0 16px; }
header { display: flex; align-items: center; justify-content: space-between; padding-top: 20px; padding-bottom: 20px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; text-decoration: none; }
.brand img { width: 36px; height: 36px; border-radius: 8px; }
nav { display: flex; gap: 16px; font-size: 15px; }
nav a { text-decoration: none; color: var(--muted); }
nav a[aria-current="page"] { color: var(--text); }
.hero { padding: 40px 0 24px; text-align: center; }
.hero img { width: 112px; height: 112px; border-radius: 25px; box-shadow: 0 10px 30px rgba(107, 77, 250, 0.3); }
h1 { font-size: 2rem; line-height: 1.2; margin: 24px 0 8px; }
.hero h1 {
  font-size: 2.4rem;
  background: linear-gradient(90deg, var(--blue), var(--indigo));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead { color: var(--muted); font-size: 1.15rem; margin: 0 auto; max-width: 34ch; }
h2 { font-size: 1.25rem; margin: 32px 0 8px; }
.features { display: grid; gap: 12px; padding: 0; list-style: none; margin: 32px 0; }
.features li { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.features strong { display: block; }
.features span { color: var(--muted); font-size: 0.95rem; }
.facts { color: var(--muted); }
.updated { color: var(--muted); font-size: 0.95rem; }
footer { padding-top: 32px; padding-bottom: 40px; color: var(--muted); font-size: 14px; }
footer a { color: inherit; }
@media (min-width: 640px) { .features { grid-template-columns: 1fr 1fr; } }