:root { color-scheme: light; font-family: system-ui, -apple-system, "Noto Sans JP", sans-serif; color: #24332f; background: #f7f8f4; line-height: 1.85; }
* { box-sizing: border-box; }
body { margin: 0; }
a { color: #215c4c; text-underline-offset: .2em; }
a:hover { color: #102f27; }
a:focus-visible { outline: 3px solid #b17a23; outline-offset: 4px; }
header, main, footer { width: min(100% - 2.5rem, 760px); margin-inline: auto; }
header { padding-block: 1.3rem; border-bottom: 1px solid #d9dfd6; display: flex; flex-wrap: wrap; align-items: center; gap: .7rem 2rem; justify-content: space-between; }
.brand { color: inherit; font-weight: 700; text-decoration: none; letter-spacing: .03em; }
nav { display: flex; flex-wrap: wrap; gap: .3rem 1.2rem; font-size: .88rem; }
nav a[aria-current="page"] { color: #24332f; font-weight: 700; }
main { padding-block: 2.2rem 3rem; }
.draft { display: inline-block; margin: 0 0 1.1rem; padding: .1rem .7rem; background: #f4ecd8; color: #6b4b16; font-size: .8rem; border-radius: 3px; }
.eyebrow { font-size: .82rem; letter-spacing: .1em; color: #5a7166; margin-bottom: .5rem; }
h1 { margin: 0 0 1rem; font-size: clamp(1.65rem, 4vw, 2.3rem); line-height: 1.4; letter-spacing: -.02em; }
h2 { font-size: 1.08rem; margin: 1.9rem 0 .5rem; }
p { margin: .6rem 0 1rem; }
.lead { font-size: 1.12rem; }
ul { padding-left: 1.4rem; }
li + li { margin-top: .5rem; }
.notice { margin-top: 1.5rem; border-left: 3px solid #91ad9f; padding: .2rem 1rem; background: #edf2ed; }
code { font-size: .9em; overflow-wrap: anywhere; }
footer { border-top: 1px solid #d9dfd6; padding-block: 1.1rem 2rem; font-size: .82rem; color: #596b61; }
footer p { margin: .2rem 0; }
@media (max-width: 480px) { header, main, footer { width: calc(100% - 2rem); } main { padding-top: 1.5rem; } nav { gap: .25rem .9rem; } }