:root {
  --bg: #ffffff;
  --surface: #f7f7f8;
  --text: #1c1c1e;
  --muted: #6b6b70;
  --border: #e5e5ea;
  --accent: #6c5ce7;
  --accent-weak: #efeafc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131316;
    --surface: #1d1d20;
    --text: #f2f2f5;
    --muted: #9a9aa2;
    --border: #2c2c31;
    --accent: #a99bff;
    --accent-weak: #241f38;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

.wrap { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }

header.site {
  display: flex; align-items: center; gap: 12px;
  padding: 20px; max-width: 720px; margin: 0 auto;
}
header.site .mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--accent); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 18px;
  flex: 0 0 auto;
}
header.site .name { font-weight: 700; font-size: 18px; }

nav.top { margin-left: auto; display: flex; gap: 18px; font-size: 15px; }
nav.top a { color: var(--muted); text-decoration: none; }
nav.top a:hover { color: var(--accent); }

h1 { font-size: 30px; line-height: 1.2; margin: 8px 0 4px; letter-spacing: -0.02em; }
h2 { font-size: 21px; margin: 36px 0 8px; letter-spacing: -0.01em; }
.tagline { color: var(--muted); font-size: 19px; margin: 0 0 28px; }
.updated { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
p { margin: 12px 0; }
a { color: var(--accent); }
ul { padding-left: 22px; }
li { margin: 6px 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 4px 20px 16px;
  margin: 20px 0;
}

.pill {
  display: inline-block; background: var(--accent-weak); color: var(--accent);
  border-radius: 999px; padding: 4px 12px; font-size: 13px; font-weight: 600;
  margin: 2px 6px 2px 0;
}

.contact { font-weight: 600; }

footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted); font-size: 14px;
  max-width: 720px; margin: 40px auto 0; padding: 24px 20px 48px;
  display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center;
}
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--accent); }
footer.site .spacer { margin-left: auto; }