:root {
  --bg: #F7F4EC;
  --surface: #FFFFFF;
  --ink: #26312B;
  --ink-2: #5C685F;
  --green: #2E9868;
  --green-deep: #1F7A52;
  --cream: #F7F2E4;
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171D19;
    --surface: #212925;
    --ink: #EDF2EC;
    --ink-2: #A7B3A9;
    --green: #46B983;
    --green-deep: #6ECD9F;
    --cream: #2A332D;
  }
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 0 24px; }
header.site {
  padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between;
}
header.site .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 18px; }
header.site .brand svg { width: 34px; height: 34px; }
header.site nav a { color: var(--ink-2); text-decoration: none; margin-left: 20px; font-size: 15px; }
header.site nav a:hover { color: var(--green); }
.hero { text-align: center; padding: 56px 0 40px; }
.hero .mark { width: 108px; height: 108px; margin: 0 auto 24px; border-radius: 26px;
  background: linear-gradient(180deg, #6BB88C, #388C66);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 18px 40px rgba(46, 152, 104, 0.28); }
.hero .mark svg { width: 66px; height: 66px; }
.hero h1 { font-size: 46px; letter-spacing: -0.02em; line-height: 1.1; }
.hero h1 span { color: var(--green); }
.hero p.tag { font-size: 20px; color: var(--ink-2); max-width: 560px; margin: 14px auto 0; }
.badges { margin-top: 26px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.badge { background: var(--cream); border-radius: 999px; padding: 8px 16px; font-size: 14px; font-weight: 600; color: var(--green-deep); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding: 40px 0; }
.card { background: var(--surface); border-radius: var(--radius); padding: 24px; box-shadow: 0 2px 10px rgba(0,0,0,0.04); }
.card h3 { font-size: 17px; margin-bottom: 6px; }
.card p { font-size: 15px; color: var(--ink-2); }
.card .emoji { font-size: 26px; display: block; margin-bottom: 10px; }
.privacy-banner { background: var(--surface); border-radius: var(--radius); padding: 32px; text-align: center; margin: 8px 0 48px; box-shadow: 0 2px 10px rgba(0,0,0,0.04); }
.privacy-banner h2 { font-size: 24px; margin-bottom: 10px; }
.privacy-banner p { color: var(--ink-2); max-width: 620px; margin: 0 auto; }
main.doc { padding: 40px 0 64px; }
main.doc h1 { font-size: 34px; margin-bottom: 6px; letter-spacing: -0.01em; }
main.doc .updated { color: var(--ink-2); font-size: 14px; margin-bottom: 28px; }
main.doc h2 { font-size: 21px; margin: 30px 0 8px; }
main.doc p, main.doc li { color: var(--ink-2); font-size: 16px; }
main.doc ul { padding-left: 22px; margin: 8px 0; }
main.doc strong { color: var(--ink); }
main.doc hr { border: none; border-top: 1px solid rgba(127,127,127,0.25); margin: 40px 0; }
main.doc a { color: var(--green); }
footer.site { padding: 32px 0 48px; text-align: center; color: var(--ink-2); font-size: 14px; }
footer.site a { color: var(--green); text-decoration: none; }
@media (max-width: 600px) { .hero h1 { font-size: 34px; } }