:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --text: #16161a;
  --muted: #5d5d66;
  --line: #e4e4e0;
  --accent: #1f5f4a;
  --accent-soft: #e6f0ec;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111113;
    --surface: #18181b;
    --text: #ececef;
    --muted: #a0a0aa;
    --line: #2a2a2f;
    --accent: #7cc4a8;
    --accent-soft: #1b2a25;
  }
}
* { 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 Neue", Arial, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 700; font-size: 20px; letter-spacing: -0.01em; color: var(--text); text-decoration: none; }
nav a { margin-left: 20px; color: var(--muted); text-decoration: none; font-size: 15px; }
nav a:hover { color: var(--text); }
.hero { padding: 72px 0 40px; }
.hero h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 16px; }
.hero p { font-size: 19px; color: var(--muted); max-width: 640px; margin: 0; }
section { padding: 32px 0; }
h2 { font-size: 24px; letter-spacing: -0.01em; margin: 0 0 12px; }
h3 { font-size: 18px; margin: 24px 0 6px; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.card h3 { margin-top: 0; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.one { background: var(--accent-soft); border-radius: 16px; padding: 28px; margin-top: 8px; }
.one ul { margin: 12px 0 0; padding-left: 20px; }
.one li { margin: 6px 0; }
.legal h1 { font-size: 34px; letter-spacing: -0.02em; margin: 48px 0 4px; }
.legal .updated { color: var(--muted); margin: 0 0 24px; }
.legal li { margin: 6px 0; }
.legal table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
.legal th, .legal td { text-align: left; border-bottom: 1px solid var(--line); padding: 8px 6px; vertical-align: top; }
.legal code { font-size: 13px; }
footer.site { border-top: 1px solid var(--line); margin-top: 48px; padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer.site a { color: var(--muted); margin-right: 16px; }