:root{color-scheme:light dark;--bg:#f7f4ee;--surface:#fffdf8;--ink:#1b1a17;--muted:#6e6a63;--line:#ddd8cf;--accent:#3f7d4a}
html[data-theme="dark"]{--bg:#171615;--surface:#211f1d;--ink:#f4f0e8;--muted:#aaa49c;--line:#3a3632;--accent:#8dcc98}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}
.page{width:min(880px,calc(100% - 36px));margin:0 auto;padding:40px 0 56px}
.top{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-bottom:44px}
.brand{font-weight:800;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.nav{display:flex;column-gap:24px;row-gap:10px;flex-wrap:wrap;align-items:center}.nav a{color:var(--muted);text-decoration:none;font-size:14px}.nav a:hover{color:var(--ink)}
h1{font-size:clamp(30px,5vw,48px);line-height:1.05;letter-spacing:-.04em;margin:0 0 14px}
h2{font-size:20px;margin:34px 0 10px;letter-spacing:-.02em}p,li{font-size:16px}.lede{color:var(--muted);max-width:700px;font-size:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;margin:16px 0}.card h2{margin-top:0}
a{color:var(--accent)}
.footer{margin-top:48px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.back{display:inline-flex;align-items:center;gap:7px;margin-bottom:24px;text-decoration:none;color:var(--muted);font-size:14px}
.updated{color:var(--muted);font-size:13px;margin:0 0 22px}
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;background:var(--ink);color:var(--bg);border:0;border-radius:999px;padding:12px 22px;font-weight:650;font-size:15px;font-family:inherit;cursor:pointer}
html[data-theme="dark"] .btn{color:#171615}
.card ul{margin:8px 0 0;padding-left:20px}
.card li{margin:4px 0}
.card+.card{margin-top:14px}
.error-page{min-height:calc(100vh - 120px);display:flex;align-items:center;justify-content:center;text-align:center}
.error-page main{display:flex;flex-direction:column;align-items:center;max-width:420px}
.error-mascot{width:110px;height:110px;color:var(--accent);margin:0 0 22px}
.error-code{color:var(--muted);font-size:14px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin:0 0 8px}
.error-page h1{margin:0 0 12px}
.error-page .lede{margin:0 0 22px}
@media(max-width:700px){.page{width:min(100% - 24px,880px);padding-top:24px}.top{margin-bottom:32px;align-items:flex-start;flex-direction:column}.nav{gap:10px}.card{padding:18px}}

.updated-note{margin:0 0 22px}.updated-note summary{display:inline-flex;align-items:center;gap:8px;cursor:pointer;color:var(--muted);font-size:13px;list-style:none}.updated-note summary::-webkit-details-marker{display:none}.updated-note summary::after{content:"+";font-size:15px;line-height:1}.updated-note[open] summary::after{content:"−"}.updated-note p{max-width:700px;margin:10px 0 0;color:var(--muted);font-size:14px}.page main{max-width:760px}.error-page{min-height:calc(100vh - 120px);display:block;text-align:center}.error-page .top{text-align:left}.error-page main{min-height:calc(100vh - 210px);display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto}.error-page .error-mascot{flex:0 0 auto}