:root{--bg:#F4F1EA;--ink:#1C2140;--muted:#6B6F86;--line:#E2DDD0;--accent:#B8913A;--card:#FBF9F4}
@media (prefers-color-scheme:dark){:root{--bg:#0E1126;--ink:#F1EBDD;--muted:#9A9CB5;--line:#2A2F52;--accent:#E8CF8A;--card:#151A36}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.9 "Zen Maru Gothic","Hiragino Maru Gothic ProN",system-ui,sans-serif}
.site-header,.site-footer,main{max-width:680px;margin:0 auto;padding-left:16px;padding-right:16px}
.site-header{display:flex;justify-content:space-between;align-items:center;padding-top:24px;padding-bottom:8px}
.brand{color:var(--accent);letter-spacing:.4em;font-weight:700;text-decoration:none;font-size:18px}
.lang{font-size:14px;color:var(--muted);text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:2px 14px}
.lang:hover,.lang:focus-visible{color:var(--accent);border-color:var(--accent)}
main{padding-top:32px;padding-bottom:64px}
h1{font-size:30px;line-height:1.5;margin:0 0 4px;letter-spacing:.04em}
h2{font-size:18px;margin:40px 0 8px;padding-top:16px;border-top:1px solid var(--line)}
h3{font-size:16px;margin:24px 0 2px}
.faq h3+p{margin-top:0}
.muted{color:var(--muted);font-size:14px}
a{color:var(--ink);text-underline-offset:3px}
a:hover,a:focus-visible{color:var(--accent)}
ul{padding-left:1.4em}
.hero{text-align:center;padding:24px 0 8px}
.moon{font-size:44px;margin:0;line-height:1.2}
.lead{color:var(--muted);margin:16px auto 0;max-width:30em}
.features{display:grid;gap:16px;margin-top:40px}
.features article{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:4px 20px 12px}
.features h2{border:0;padding:0;margin:16px 0 4px;color:var(--accent);font-size:17px}
.features p{margin:0;font-size:15px}
.note{margin-top:32px;color:var(--muted);font-size:14px;text-align:center}
.site-footer{border-top:1px solid var(--line);padding-top:24px;padding-bottom:48px;font-size:14px;color:var(--muted)}
.site-footer nav{display:flex;flex-wrap:wrap;gap:4px 20px}
.site-footer a{color:var(--muted)}
.site-footer p{margin:12px 0 0}
@media (min-width:720px){h1{font-size:34px}.features{grid-template-columns:repeat(3,1fr)}.site-header,.site-footer,main{max-width:860px}main>h1,main>p,main>h2,main>h3,main>ul,main>div{max-width:680px;margin-left:auto;margin-right:auto}}