:root {
  --bg: #0f1311;
  --card: #161c19;
  --line: #26302b;
  --text: #e8ede9;
  --dim: #93a098;
  --green: #39d353;
  --green-dark: #2f6f3a;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }

/* top bar */
header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 900; font-size: 20px; letter-spacing: -0.5px; }
.brand:hover { text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
nav.links { display: flex; gap: 18px; font-size: 15px; }
nav.links a { color: var(--dim); }
nav.links a:hover { color: var(--text); text-decoration: none; }

/* home */
.hero { text-align: center; padding: 72px 0 48px; }
.hero img { width: 112px; height: 112px; border-radius: 26px; }
.hero h1 { font-size: 44px; line-height: 1.1; letter-spacing: -1.5px; margin: 26px 0 12px; font-weight: 900; }
.hero p.lead { color: var(--dim); font-size: 19px; margin: 0 auto; max-width: 520px; }
.pill { display: inline-block; margin-top: 28px; padding: 10px 18px; border-radius: 999px; background: var(--green-dark); color: #fff; font-weight: 700; font-size: 15px; }
.features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding-top: 8px; padding-bottom: 56px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; }
.feature h3 { margin: 0 0 6px; font-size: 17px; }
.feature p { margin: 0; color: var(--dim); font-size: 15px; line-height: 1.5; }

/* text pages */
.doc { padding-top: 40px; padding-bottom: 64px; }
.doc h1 { font-size: 34px; letter-spacing: -1px; line-height: 1.15; margin: 0 0 6px; }
.doc .updated { color: var(--dim); font-size: 14px; margin: 0 0 28px; }
.doc h2 { font-size: 21px; margin: 34px 0 8px; }
.doc p, .doc li { color: #cfd8d2; }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.box { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 20px; margin: 18px 0; }
.box p { margin: 0; }
details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px; margin: 10px 0; }
details summary { cursor: pointer; font-weight: 700; color: var(--text); }
details p { margin: 10px 0 2px; }

footer { border-top: 1px solid var(--line); color: var(--dim); font-size: 14px; }
footer .wrap { padding: 24px 20px 40px; display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer a { color: var(--dim); }

@media (max-width: 560px) {
  .hero { padding-top: 48px; padding-bottom: 36px; }
  .hero h1 { font-size: 34px; }
  .features { grid-template-columns: 1fr; }
  nav.links { gap: 14px; }
}