:root{
  --bg:#fffbf5;--bg-2:#fdf3e4;--fg:#24170c;--text:#4a3a2a;--muted:#7a6753;
  --card:#ffffff;--border:#efe2cf;--border-2:#e4d3ba;--primary:#b45309;--accent:#ea580c;--soft:#fdecd2;
  --font-sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-display:"Plus Jakarta Sans",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
[data-theme="dark"]{
  --bg:#15100b;--bg-2:#1b140d;--fg:#fbf4ea;--text:#e3d5c3;--muted:#b9a68f;
  --card:#211810;--border:#35281b;--border-2:#47361f;--primary:#f59e0b;--accent:#fb923c;--soft:#33240f;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 1rem/1.7 var(--font-sans)}
a{color:var(--primary)}
a:hover{text-decoration-thickness:2px}
.wrap{max-width:820px;margin:0 auto;padding:0 20px}
header.site{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font:800 1.0625rem var(--font-display);color:var(--fg);text-decoration:none}
.brand img{width:32px;height:32px;border-radius:9px}
.nav-actions{display:flex;align-items:center;gap:8px}
.theme-btn{height:38px;min-width:38px;padding:0 12px;border-radius:999px;border:1px solid var(--border-2);background:var(--card);color:var(--fg);font:600 .8125rem var(--font-sans);cursor:pointer}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 16px;border-radius:12px;font:700 .875rem var(--font-display);text-decoration:none;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff}
[data-theme="dark"] .btn{color:#1d1206}
main.wrap{padding-top:36px;padding-bottom:56px}
.eyebrow{font:700 .75rem var(--font-display);letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin:0 0 8px}
h1{font:800 clamp(1.75rem,5vw,2.375rem)/1.2 var(--font-display);color:var(--fg);margin:0 0 10px;letter-spacing:-.02em}
.lead{font-size:1.0625rem;color:var(--muted);margin:0 0 6px}
.updated{font-size:.875rem;color:var(--muted);margin:0 0 28px}
h2{font:700 1.25rem/1.35 var(--font-display);color:var(--fg);margin:36px 0 10px;letter-spacing:-.01em}
h3{font:700 1.0625rem/1.4 var(--font-display);color:var(--fg);margin:22px 0 6px}
p,li{margin:0 0 10px}
ul,ol{padding-left:1.3em;margin:0 0 12px}
.toc,.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px 20px;margin:0 0 20px}
.toc ol{margin:0;columns:2;column-gap:28px}
.toc li{margin:0 0 4px;font-size:.9375rem;break-inside:avoid}
.note{background:var(--soft);border-radius:14px;padding:14px 16px;margin:16px 0}
table{width:100%;border-collapse:collapse;margin:8px 0 16px;font-size:.9375rem}
th,td{border:1px solid var(--border);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--bg-2);color:var(--fg);font-weight:600}
.table-wrap{overflow-x:auto}
details{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:12px 16px;margin:0 0 10px}
summary{font:600 1rem var(--font-display);color:var(--fg);cursor:pointer}
details[open] summary{margin-bottom:8px}
footer{border-top:1px solid var(--border);padding:28px 0 36px;font-size:.875rem;color:var(--muted)}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:10px}
.foot-links a{color:var(--text)}
@media (max-width:600px){.toc ol{columns:1}.nav .btn{display:none}main.wrap{padding-top:26px}}
.language-toggle{display:inline-flex;align-items:center;gap:2px;padding:2px;border:1px solid var(--border);border-radius:999px;background:var(--card)}
.language-btn{min-width:40px;min-height:40px;padding:0 10px;border:0;border-radius:999px;background:transparent;color:var(--fg);font:600 .8125rem var(--font-body);cursor:pointer}
.language-btn[aria-pressed="true"]{background:#176b4b;color:#fff}
.language-btn:focus-visible{outline:2px solid #176b4b;outline-offset:2px}