:root{
  --bg:#f6f6f7;--surface:#ffffff;--surface-2:#f0f1f3;--fg:#121316;--fg-2:#3b3e45;--muted:#6b7079;
  --line:#e3e5e9;--line-strong:#c9cdd4;--accent:#1f2937;--accent-ink:#ffffff;
  --shadow:0 1px 2px rgba(18,19,22,.04),0 10px 30px -18px rgba(18,19,22,.22);
}
*{box-sizing:border-box}
html{font-size:17px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:Inter,"SF Pro Text",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:840px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px}
.skip:focus{left:16px;background:var(--surface);padding:8px 12px;z-index:20;border:1px solid var(--line);border-radius:8px}
a{color:var(--fg);text-decoration:underline;text-decoration-color:var(--line-strong);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-color:var(--fg)}
code{background:var(--surface-2);padding:1px 6px;border-radius:6px;font-size:.92em}

.site-header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px;padding-top:14px;padding-bottom:14px}
.brand{font-weight:650;text-decoration:none;font-size:1rem;letter-spacing:-.01em;display:inline-flex;align-items:center;gap:10px}
.brand::before{content:"";width:12px;height:12px;border-radius:3px;background:var(--accent);flex:none}
.site-header nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-size:.93rem;font-weight:500}
.site-header nav a:first-child{margin-left:0}
.site-header nav a:hover{color:var(--fg)}

main{padding:52px 20px 72px}
.hero{padding-bottom:8px}
.kicker{text-transform:uppercase;letter-spacing:.1em;font-size:.74rem;color:var(--muted);font-weight:600;margin:0 0 14px}
h1{font-size:clamp(2.1rem,5vw,3rem);line-height:1.08;margin:0 0 22px;letter-spacing:-.025em;font-weight:700}
h2{font-size:1.5rem;line-height:1.25;letter-spacing:-.015em;font-weight:650;margin:0 0 14px}
h3{font-size:1.08rem;margin:26px 0 8px;font-weight:650;letter-spacing:-.005em}
p{margin:0 0 15px;color:var(--fg-2)}
.lead p{font-size:1.15rem;color:var(--fg);line-height:1.6}
.updated{color:var(--muted);font-size:.88rem;margin-top:4px}

section{margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
section:first-of-type{border-top:0;padding-top:0}

.answer-box{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px 26px;margin:34px 0 30px;box-shadow:var(--shadow)}
.answer-box h2{margin:0 0 10px;font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:600}
.answer-box p{color:var(--fg);font-size:1.04rem}
.answer-box p:last-child{margin-bottom:0}
.button{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--accent-ink) !important;padding:11px 18px;border-radius:10px;text-decoration:none;font-weight:600;font-size:.95rem;border:1px solid transparent}
.button:hover{opacity:.9}
.cta{margin-top:18px}

.toc{background:var(--surface-2);border-radius:14px;padding:18px 22px;margin:0 0 8px}
.toc h2{font-size:.76rem;text-transform:uppercase;letter-spacing:.1em;margin:0 0 10px;color:var(--muted);font-weight:600}
.toc ol{margin:0;padding-left:20px;columns:2;column-gap:32px;font-size:.95rem}
.toc li{margin:5px 0;break-inside:avoid;color:var(--fg-2)}
.toc a{text-decoration:none;color:var(--fg)}
.toc a:hover{text-decoration:underline}
@media (max-width:600px){.toc ol{columns:1}}

.table-scroll{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.94rem;min-width:560px}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--fg-2)}
th{background:var(--surface-2);font-weight:600;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
tr:last-child td{border-bottom:0}
td strong{color:var(--fg)}
ul,ol{padding-left:22px;margin:0 0 16px;color:var(--fg-2)}
li{margin:7px 0}
li strong{color:var(--fg)}
dl{margin:0 0 16px}
dt{font-weight:650;margin-top:16px;color:var(--fg)}
dd{margin:4px 0 0 0;color:var(--fg-2)}

.callout{background:var(--surface-2);border-radius:14px;padding:16px 20px;margin:22px 0}
.callout p{color:var(--fg)}
.callout p:last-child{margin-bottom:0}
.callout .label{display:block;color:var(--muted);font-weight:600;font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px}

.faq-item{border-top:1px solid var(--line);padding:4px 0 2px}
.faq-item:first-of-type{border-top:0}
.faq-item h3{margin-top:18px}
.faq-a p:last-child{margin-bottom:20px}

.cards{list-style:none;padding:0;margin:0 0 22px;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.cards li{margin:0}
.cards a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px;text-decoration:none;color:var(--fg);height:100%;transition:border-color .15s,box-shadow .15s}
.cards a:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}
.cards strong{display:block;margin-bottom:6px;line-height:1.3;font-weight:650;letter-spacing:-.01em}
.cards span{font-size:.9rem;color:var(--muted);line-height:1.5}

.about h2{margin-top:40px}

.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:34px 0 44px;font-size:.9rem;color:var(--muted)}
.site-footer p{margin:0 0 12px;color:var(--muted)}
.site-footer strong{color:var(--fg)}
.site-footer a{color:var(--fg-2)}
.foot-links a{margin-right:2px}
.disclaimer{font-size:.82rem;line-height:1.55}