:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #5f6368;
  --line: #e3e3df;
  --accent: #2f6fde;
  --accent-soft: #e8effc;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121314;
    --surface: #1b1c1e;
    --text: #ececec;
    --muted: #a2a5aa;
    --line: #2c2e31;
    --accent: #7aa7ff;
    --accent-soft: #1d2a44;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

header.site { border-bottom: 1px solid var(--line); background: var(--surface); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }

.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; color: var(--text); text-decoration: none; }
.brand img { width: 28px; height: 28px; display: block; }

nav { display: flex; gap: 18px; }
nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); }

main { padding: 48px 0 64px; }

h1 { font-size: clamp(28px, 5vw, 40px); line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.01em; }
h2 { font-size: 20px; line-height: 1.3; margin: 40px 0 8px; }
h3 { font-size: 16px; margin: 0 0 6px; }

.lead { font-size: 18px; color: var(--muted); margin: 0 0 32px; max-width: 60ch; }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 28px; }

.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 20px 22px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.scopes { list-style: none; padding: 0; margin: 12px 0; display: grid; gap: 10px; }
.scopes li { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
code { font: 13px/1.4 ui-monospace, SFMono-Regular, Consolas, monospace; background: var(--accent-soft); color: var(--text); padding: 2px 6px; border-radius: 6px; overflow-wrap: anywhere; }

a { color: var(--accent); }
ul { padding-left: 1.2em; }
li { margin: 4px 0; }
p { max-width: 70ch; }

footer { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 18px; }
footer a { color: var(--muted); }