:root {
  --bg: #f7f4ef; --fg: #1f1a16; --muted: #6e655c; --line: #e3ddd3; --accent: #7a4a22;
  --font: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #15120f; --fg: #eee7de; --muted: #a39788; --line: #2c2620; --accent: #d9a77a; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--font); line-height: 1.8; }
main { max-width: 680px; margin: 0 auto; padding: 48px 20px 80px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 40px; }
header a { color: inherit; text-decoration: none; display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: .02em; }
header img { width: 36px; height: 36px; }
header span.reading { font-weight: 500; font-size: 13px; color: var(--muted); }
h1 { font-size: 26px; line-height: 1.4; margin: 0 0 8px; text-wrap: balance; }
h2 { font-size: 18px; margin: 36px 0 8px; }
p, li { font-size: 15px; }
.meta { color: var(--muted); font-size: 13px; margin-bottom: 28px; }
a { color: var(--accent); }
ul { padding-left: 1.2em; }
.links { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 28px; }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }