:root{
  --bg:#F4F5F9; --surface:#FFFFFF; --surface-2:#EDEFF5;
  --ink:#14161C; --ink-2:#5C6270; --ink-3:#9AA0AE;
  --line:#E5E7EF; --line-2:#D6D9E4;
  --ac:#3A45E0; --ac-soft:#E6E8FB; --ac-ink:#2A32A8;
  --warn:#B4690E; --warn-soft:#F7ECD9;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --measure:44rem;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0E1014; --surface:#171A21; --surface-2:#1F2430;
    --ink:#E9ECF2; --ink-2:#A6ADBC; --ink-3:#7C8394;
    --line:#272C38; --line-2:#39404F;
    --ac:#7B84F0; --ac-soft:#1B2140; --ac-ink:#A8AEF7;
    --warn:#D9A05B; --warn-soft:#2E2412;
  }
}
:root[data-theme="dark"]{
  --bg:#0E1014; --surface:#171A21; --surface-2:#1F2430;
  --ink:#E9ECF2; --ink-2:#A6ADBC; --ink-3:#7C8394;
  --line:#272C38; --line-2:#39404F;
  --ac:#7B84F0; --ac-soft:#1B2140; --ac-ink:#A8AEF7;
  --warn:#D9A05B; --warn-soft:#2E2412;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:1.0625rem;line-height:1.75;margin:0;
  padding:0 1.5rem 5rem;-webkit-font-smoothing:antialiased;
}
img{max-width:100%}
.wrap{max-width:var(--measure);margin:0 auto}

/* header */
header.site{
  display:flex;align-items:center;gap:.8rem;
  padding:1.6rem 0;border-bottom:1px solid var(--line);margin-bottom:2.5rem;
  flex-wrap:wrap;
}
.mark{
  width:38px;height:38px;border-radius:10px;background:var(--ac);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.mark svg{width:20px;height:20px}
.brand{display:flex;flex-direction:column;gap:.1rem;line-height:1.25}
.brand b{font-size:1rem;font-weight:650}
.brand span{font-size:.72rem;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
header.site nav{margin-left:auto;display:flex;gap:1.1rem;flex-wrap:wrap}
header.site nav a{font-size:.9rem;color:var(--ink-2);text-decoration:none;font-weight:500}
header.site nav a:hover,header.site nav a:focus-visible{color:var(--ac)}

h1{font-size:clamp(1.9rem,4.6vw,2.6rem);font-weight:750;line-height:1.15;letter-spacing:-.025em;margin:0 0 .6rem;text-wrap:balance}
h2{font-size:1.25rem;font-weight:700;line-height:1.3;letter-spacing:-.01em;margin:2.5rem 0 .8rem;text-wrap:balance}
h3{font-size:1.02rem;font-weight:650;margin:1.6rem 0 .4rem}
p{margin:0 0 1rem}
ul,ol{margin:0 0 1rem;padding-left:1.3rem}
li{margin:0 0 .45rem}
a{color:var(--ac)}
strong{font-weight:650}

.updated{font-size:.88rem;color:var(--ink-3);margin:0 0 2rem}
.lead{font-size:1.14rem;line-height:1.65;color:var(--ink-2);margin:0 0 1.6rem}

.card{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:1.3rem 1.4rem;margin:0 0 1.4rem;
}
.card.accent{border-left:3px solid var(--ac)}
.card.warn{border-left:3px solid var(--warn);background:var(--warn-soft)}
.card p:last-child,.card ul:last-child,.card ol:last-child{margin-bottom:0}
.card .hd{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ac);margin:0 0 .5rem}
.card.warn .hd{color:var(--warn)}

.tw{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface);margin:0 0 1.4rem}
table{border-collapse:collapse;width:100%;min-width:30rem;font-size:.94rem;line-height:1.6}
th,td{text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--line);vertical-align:top}
thead th{font-size:.7rem;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);font-weight:650;background:var(--surface-2);white-space:nowrap}
tbody tr:last-child td{border-bottom:none}

.steps{list-style:none;padding:0;margin:0 0 1.4rem;counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:1.9rem 1fr;gap:.8rem;margin:0 0 1rem;align-items:baseline}
.steps li::before{content:counter(s);font-weight:750;color:var(--ac);font-size:1.05rem}

.btn{
  display:inline-block;background:var(--ac);color:#fff;text-decoration:none;
  font-weight:650;font-size:1rem;padding:.85rem 1.5rem;border-radius:12px;margin:.3rem .5rem .3rem 0;
}
.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line-2)}

footer.site{
  margin-top:3.5rem;padding-top:1.6rem;border-top:1px solid var(--line);
  font-size:.86rem;color:var(--ink-3);line-height:1.7;
}
footer.site a{color:var(--ink-2)}
footer.site .links{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:.9rem}

a:focus-visible,.btn:focus-visible{outline:2px solid var(--ac);outline-offset:3px;border-radius:4px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}