:root {
    color-scheme: light;
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
    color: #17212a;
    background: #fff;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; line-height: 1.8; }
a { color: #126239; }
a:focus-visible { outline: 3px solid #075fcb; outline-offset: 3px; }
img { max-width: 100%; height: auto; }
.kd-skip { position: absolute; top: -100px; left: 12px; z-index: 100; padding: 8px 14px; background: #fff; }
.kd-skip:focus { top: 12px; }
.kd-site-header { border-bottom: 1px solid #e5eae7; background: #fff; }
.kd-site-header__inner, .kd-site-footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; width: min(100% - 32px, 1050px); margin: 0 auto; padding: 20px 0; }
.kd-site-title { color: #173c29; font-size: 1.1rem; font-weight: 800; text-decoration: none; }
.kd-site-header ul { display: flex; flex-wrap: wrap; gap: 18px; margin: 0; padding: 0; list-style: none; }
.kd-site-header a { text-decoration: none; }
.kd-content { width: min(100% - 32px, 900px); min-height: 55vh; margin: 0 auto; padding: 54px 0 80px; }
.kd-content h1 { margin: 0 0 28px; font-size: clamp(1.7rem, 4vw, 2.6rem); line-height: 1.4; }
.kd-content h2 { line-height: 1.45; }
.kd-entry-content > * { max-width: 100%; }
.kd-entry-content > * + * { margin-top: 1.4em; }
.kd-date, .kd-post-card time { color: #66756c; font-size: .9rem; }
.kd-post-list { display: grid; gap: 18px; }
.kd-post-card { padding: 22px; border: 1px solid #e5eae7; border-radius: 10px; }
.kd-post-card h2 { margin: .3em 0; font-size: 1.3rem; }
.kd-post-card p { margin: 0; }
.kd-site-footer { border-top: 1px solid #e5eae7; color: #56675d; font-size: .9rem; }
@media (max-width: 640px) { .kd-content { padding-top: 36px; } }