:root {
  --bg: #f7f4ec;
  --surface: #ffffff;
  --ink: #1f2a22;
  --muted: #5d6b60;
  --accent: #3f6b4f;
  --accent-soft: #e3ece4;
  --line: #e2ddd0;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141a16;
    --surface: #1c241e;
    --ink: #eef1ea;
    --muted: #a6b3a8;
    --accent: #8fc3a0;
    --accent-soft: #24332a;
    --line: #2c3a30;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

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: 68px; flex-wrap: wrap;
}
.brand {
  font-family: "Fraunces", Georgia, serif; font-weight: 700; font-size: 1.45rem;
  color: var(--ink); text-decoration: none; letter-spacing: -0.01em;
}
.brand span { color: var(--accent); }
nav a { margin-left: 18px; color: var(--muted); text-decoration: none; font-size: .95rem; }
nav a:hover { color: var(--ink); }

.hero { padding: 72px 0 56px; }
.hero h1 {
  font-family: "Fraunces", Georgia, serif; font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.1; margin: 0 0 18px; letter-spacing: -0.02em; max-width: 16ch;
}
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 56ch; margin: 0 0 28px; }
.btn {
  display: inline-block; background: var(--accent); color: var(--bg);
  padding: 12px 22px; border-radius: 999px; text-decoration: none; font-weight: 600;
}

section h2 {
  font-family: "Fraunces", Georgia, serif; font-size: 1.7rem; margin: 0 0 18px;
}
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: .97rem; }
.tag {
  display: inline-block; font-size: .78rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .06em; color: var(--accent); background: var(--accent-soft);
  padding: 3px 10px; border-radius: 999px; margin-bottom: 12px;
}
.how { padding: 56px 0; }
.note {
  background: var(--accent-soft); border-radius: var(--radius); padding: 18px 22px;
  color: var(--ink); font-size: .95rem; margin: 40px 0 0;
}

.page { padding: 56px 0; max-width: 720px; }
.page h1 { font-family: "Fraunces", Georgia, serif; font-size: 2.3rem; margin: 0 0 8px; line-height: 1.15; }
.page .updated { color: var(--muted); font-size: .9rem; margin-bottom: 28px; }
.page h2 { font-size: 1.25rem; margin: 32px 0 8px; }

footer.site {
  border-top: 1px solid var(--line); margin-top: 64px; padding: 32px 0 48px;
  color: var(--muted); font-size: .9rem;
}
footer.site a { color: var(--muted); margin-right: 16px; }
footer.site .disclose { margin-top: 12px; }

@media (max-width: 560px) {
  nav a { margin: 0 14px 0 0; }
  .hero { padding: 48px 0 40px; }
}