:root {
  color-scheme: light;
  --bg: #f7f3ee;
  --card: #ffffff;
  --text: #29241f;
  --muted: #6f675f;
  --accent: #15803d;
  --border: #e7ded5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

main {
  width: min(820px, calc(100% - 32px));
  margin: 48px auto;
  padding: 36px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(68, 51, 37, 0.06);
}

nav { margin-bottom: 28px; }
nav a, a { color: #15803d; }
nav a { margin-right: 16px; font-weight: 650; text-decoration: none; }
h1 { margin: 0 0 8px; line-height: 1.2; }
h2 { margin-top: 30px; line-height: 1.3; }
.meta { color: var(--muted); margin-top: 0; }
.button {
  display: inline-block;
  margin: 8px 0;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  font-weight: 700;
  text-decoration: none;
}
.notice { padding: 16px; border-left: 4px solid var(--accent); background: #f0fdf4; }

ol, ul { padding-left: 22px; }
li + li { margin-top: 7px; }
footer { margin-top: 36px; color: var(--muted); font-size: 14px; }

@media (max-width: 600px) {
  main { margin: 16px auto; padding: 24px 20px; border-radius: 14px; }
  nav a { display: inline-block; margin-bottom: 8px; }
}