:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif; color: #252521; background: #faf9f6; font-synthesis: none; }
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.9; }
a { color: #83402c; text-underline-offset: .22em; }
a:hover { color: #502719; }
a:focus-visible { outline: 2px solid #83402c; outline-offset: 5px; }
header, main, footer { width: min(100% - 40px, 700px); margin-inline: auto; }
header { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; padding-block: 28px; border-bottom: 1px solid #dedcd5; }
.brand { color: #252521; font-weight: 650; text-decoration: none; letter-spacing: -.025em; }
nav { display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 14px; }
nav a { display: inline-flex; align-items: center; min-height: 44px; }
main { padding-block: 54px 64px; }
h1 { font-size: clamp(28px, 5vw, 38px); font-weight: 650; line-height: 1.5; letter-spacing: -.035em; margin: 0 0 24px; }
h2 { font-size: 20px; font-weight: 650; margin-top: 36px; }
p { margin-block: 14px; }
code { overflow-wrap: anywhere; font-size: .9em; }
ul, ol { padding-left: 1.4em; }
li { margin-block: 8px; }
.eyebrow, .date { color: #66665d; font-size: 14px; }
.eyebrow { letter-spacing: .04em; margin-bottom: 14px; }
.intro { font-size: 18px; }
.steps { border-block: 1px solid #dedcd5; margin-block: 32px; padding-block: 18px; }
footer { border-top: 1px solid #dedcd5; padding-block: 24px 40px; color: #66665d; font-size: 13px; }
@media (max-width: 480px) { main { padding-block: 36px 48px; } header { gap: 8px; padding-block: 16px; } .brand { width: 100%; } }