:root{
  --bg:#ffffff;--fg:#14211f;--muted:#44544f;--accent:#0f6b63;--on-accent:#ffffff;
  --surface:#f1f6f5;--border:#c3d2ce;--code-bg:#eaf1ef;--warn-bg:#fff6dd;--warn-fg:#5a4300;--warn-border:#e2c565;
  --radius:10px;--gutter:16px;--max:72rem;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0d1615;--fg:#e6f0ee;--muted:#a9bbb7;--accent:#5fd1c1;--on-accent:#08201c;
    --surface:#14211f;--border:#2e413e;--code-bg:#1a2927;--warn-bg:#2b2410;--warn-fg:#f1dc9a;--warn-border:#6b5a1e;
  }
}
:root[data-theme="dark"]{
  --bg:#0d1615;--fg:#e6f0ee;--muted:#a9bbb7;--accent:#5fd1c1;--on-accent:#08201c;
  --surface:#14211f;--border:#2e413e;--code-bg:#1a2927;--warn-bg:#2b2410;--warn-fg:#f1dc9a;--warn-border:#6b5a1e;
  color-scheme:dark;
}
:root[data-theme="light"]{color-scheme:light}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:5rem}
body{margin:0;background:var(--bg);color:var(--fg);font:1rem/1.65 var(--sans);overflow-wrap:break-word;min-width:0}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--gutter)}
img,svg{max-width:100%;height:auto}
a{color:var(--accent);text-underline-offset:.15em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:3px}
.skip{position:absolute;left:var(--gutter);top:-4rem;background:var(--accent);color:var(--on-accent);padding:.6rem 1rem;border-radius:var(--radius);z-index:10;font-weight:600}
.skip:focus{top:.5rem}
header.site{border-bottom:1px solid var(--border);background:var(--bg)}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem 1.2rem;padding-block:.7rem}
.brand{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;font-size:1.2rem;color:var(--accent);text-decoration:none}
.logo{width:30px;height:30px;color:var(--accent)}
nav.main{flex:1 1 20rem}
nav.main ul{display:flex;flex-wrap:wrap;gap:.1rem .25rem;list-style:none;margin:0;padding:0}
nav.main a{display:block;padding:.35rem .6rem;border-radius:6px;color:var(--fg);text-decoration:none}
nav.main a:hover{background:var(--surface)}
nav.main a[aria-current="page"]{background:var(--surface);font-weight:600;box-shadow:inset 0 -2px 0 var(--accent)}
.tt{background:none;border:1px solid var(--border);color:var(--fg);border-radius:6px;padding:.3rem .7rem;font:inherit;cursor:pointer}
.tt:hover{background:var(--surface)}
.tt[hidden]{display:none}
main{display:block;padding-block:2rem 3rem}
h1{font-size:clamp(1.9rem,5vw,2.9rem);line-height:1.15;margin:0 0 1rem;letter-spacing:-.01em}
h2{font-size:clamp(1.4rem,3.2vw,1.8rem);line-height:1.25;margin:2.6rem 0 .8rem}
h3{font-size:1.15rem;margin:1.6rem 0 .5rem}
p,ul,ol{margin:.7rem 0}
.lede{font-size:1.2rem;color:var(--muted);max-width:46rem}
.status{background:var(--warn-bg);color:var(--warn-fg);border:1px solid var(--warn-border);border-radius:var(--radius);padding:.8rem 1rem;margin:0 0 1.5rem}
.status strong{color:inherit}
.hero{padding-block:1rem 1rem}
.btns{display:flex;flex-wrap:wrap;gap:.7rem;margin:1.4rem 0}
.btn{display:inline-block;padding:.7rem 1.2rem;border-radius:var(--radius);background:var(--accent);color:var(--on-accent);font-weight:600;text-decoration:none;border:2px solid var(--accent)}
.btn:hover{filter:brightness(1.08)}
.btn.alt{background:transparent;color:var(--accent)}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr))}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.1rem;min-width:0}
.card h3{margin-top:0}
.stats{display:grid;gap:.8rem;grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));margin:1.5rem 0;padding:0;list-style:none}
.stats li{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.8rem 1rem}
.stats b{display:block;font-size:2rem;line-height:1.1;color:var(--accent)}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,13rem),1fr))}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:2rem;height:2rem;border-radius:50%;background:var(--accent);color:var(--on-accent);font-weight:700;margin-bottom:.4rem}
code,pre,kbd{font-family:var(--mono);font-size:.9em}
code{background:var(--code-bg);padding:.1em .35em;border-radius:4px;overflow-wrap:anywhere}
pre{background:var(--code-bg);border:1px solid var(--border);border-radius:var(--radius);padding:.9rem 1rem;overflow-x:auto;max-width:100%;line-height:1.5;margin:.8rem 0 .4rem}
pre code{background:none;padding:0;overflow-wrap:normal}
.copy{font:inherit;font-size:.85rem;background:none;color:var(--accent);border:1px solid var(--border);border-radius:6px;padding:.15rem .6rem;cursor:pointer;margin-bottom:.8rem}
.tablewrap{overflow-x:auto;max-width:100%;border:1px solid var(--border);border-radius:var(--radius);margin:1rem 0}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:.55rem .8rem;border-bottom:1px solid var(--border);vertical-align:top}
th{background:var(--surface)}
tr:last-child td{border-bottom:0}
.scn{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.9rem 1.1rem;margin:.8rem 0;min-width:0}
.scn[hidden],[data-cat-sec][hidden]{display:none}
.scn h3{margin:0 0 .3rem;font-size:1.05rem}
.scn .id{font-family:var(--mono);font-size:.85rem;color:var(--muted);overflow-wrap:anywhere}
.scn p{margin:.4rem 0}
.tags{display:flex;flex-wrap:wrap;gap:.35rem;list-style:none;padding:0;margin:.5rem 0 0}
.tags li{border:1px solid var(--border);background:var(--bg);border-radius:999px;padding:.1rem .6rem;font-size:.82rem}
.tags .atlas{border-color:var(--accent)}
.badge{display:inline-block;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:.1rem .5rem;border-radius:999px;background:var(--accent);color:var(--on-accent);margin-left:.4rem;vertical-align:middle}
.filters{display:flex;flex-wrap:wrap;gap:.6rem;align-items:end;margin:1rem 0}
.filters[hidden]{display:none}
.filters label{display:grid;gap:.2rem;font-size:.9rem;color:var(--muted)}
input,select{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:.45rem .6rem;max-width:100%}
.toc{display:flex;flex-wrap:wrap;gap:.4rem;list-style:none;padding:0}
.toc a{display:block;border:1px solid var(--border);border-radius:999px;padding:.2rem .8rem;text-decoration:none}
.legal h2{font-size:1.25rem}
.note{border-left:4px solid var(--accent);padding:.2rem 1rem;background:var(--surface);border-radius:0 var(--radius) var(--radius) 0}
footer.site{border-top:1px solid var(--border);background:var(--surface);padding-block:1.6rem;font-size:.92rem;color:var(--muted)}
footer.site ul{display:flex;flex-wrap:wrap;gap:.3rem 1.2rem;list-style:none;padding:0;margin:.5rem 0}
footer.site a{color:var(--fg)}
@media (prefers-reduced-motion:no-preference){a,.btn,.tt,nav.main a{transition:background-color .15s,filter .15s}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{header.site nav,.tt,.skip,.copy{display:none}}
/* documentation pages */
.docs{display:grid;gap:2rem;grid-template-columns:minmax(0,1fr)}
@media (min-width:60rem){.docs{grid-template-columns:15rem minmax(0,1fr);align-items:start}.docnav{position:sticky;top:1rem;max-height:calc(100vh - 2rem);overflow-y:auto}}
.docnav{font-size:.93rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:.2rem 1rem .8rem;min-width:0}
.docnav h2{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:1rem 0 .3rem}
.docnav ul{list-style:none;margin:0;padding:0}
.docnav a{display:block;padding:.2rem .4rem;border-radius:6px;color:var(--fg);text-decoration:none}
.docnav a:hover{background:var(--bg)}
.docnav a[aria-current="page"]{background:var(--bg);font-weight:600;box-shadow:inset 3px 0 0 var(--accent)}
.doc{min-width:0}
.doc h1{font-size:clamp(1.6rem,4vw,2.3rem)}
.doc h2{font-size:1.4rem}
.doc h4,.doc h5{margin:1.2rem 0 .4rem}
.doc blockquote{margin:1rem 0;border-left:4px solid var(--accent);padding:.1rem 1rem;background:var(--surface);border-radius:0 var(--radius) var(--radius) 0}
.doc li>ul,.doc li>ol{margin:.3rem 0}
.doc hr{border:0;border-top:1px solid var(--border);margin:1.5rem 0}
.crumb{margin:0 0 .6rem;font-size:.9rem}
.doctoc{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:.2rem 1rem .8rem;margin:1rem 0 1.6rem;font-size:.93rem}
.doctoc h2{font-size:.9rem;margin:.8rem 0 .3rem}
.doctoc ul{list-style:none;margin:0;padding:0;columns:16rem}
.doctoc li{break-inside:avoid;padding:.1rem 0}
.doctoc .l3{padding-left:1rem}
.notes{list-style:none;padding:0;display:grid;gap:.3rem}
.notes .id{font-family:var(--mono);font-size:.82rem;color:var(--muted)}
/* translations */
:lang(ja){font-family:system-ui,-apple-system,"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Yu Gothic",Meiryo,"Noto Sans CJK JP","Noto Sans JP",sans-serif}
:lang(zh-CN){font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Noto Sans SC","Source Han Sans SC",sans-serif}
code:lang(ja),code:lang(zh-CN),pre:lang(ja),pre:lang(zh-CN){font-family:var(--mono)}
.langs{display:flex;flex-wrap:wrap;align-items:baseline;gap:.3rem .8rem;margin:.4rem 0 1rem;font-size:.92rem;color:var(--muted)}
.langs ul{display:flex;flex-wrap:wrap;gap:.3rem;list-style:none;margin:0;padding:0}
.langs a{display:block;border:1px solid var(--border);border-radius:999px;padding:.1rem .7rem;text-decoration:none}
.langs a[aria-current="page"]{background:var(--surface);font-weight:600;border-color:var(--accent);color:var(--fg)}
.status.mt p{margin:.2rem 0}