:root{
  --bg:#f7f6f3;--ink:#1a1714;--muted:#5f5a54;--faint:#9b958d;
  --brand:#e1500f;--brand-2:#ff7a48;--brand-soft:#fbefe7;--line:#e7e4df;--card:#fff;--maxw:820px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:"Sora",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);background:var(--bg);
  background-image:radial-gradient(1100px 520px at 50% -14%, #fbe4d6 0%, rgba(251,228,214,0) 60%);
  background-repeat:no-repeat;line-height:1.7;-webkit-font-smoothing:antialiased;
  font-optical-sizing:auto;overflow-x:hidden;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

header{position:sticky;top:0;z-index:40;backdrop-filter:saturate(140%) blur(10px);
  background:rgba(247,246,243,.72);border-bottom:1px solid rgba(231,228,223,.7)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:"Fraunces",Georgia,serif;
  font-weight:700;font-size:20px;letter-spacing:-.02em;color:var(--ink)}
.brand:hover{text-decoration:none}
.logo{width:32px;height:32px;border-radius:9px;object-fit:cover;display:block;
  box-shadow:0 4px 12px -4px rgba(26,23,20,.35)}

.lang{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 12px;
  border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;
  font:inherit;font-size:14px;font-weight:600;color:var(--ink);transition:border-color .15s}
.lang-btn:hover{border-color:#d2cec7}
.lang-btn svg{width:15px;height:15px;color:var(--faint);transition:transform .18s}
.lang.open .lang-btn svg{transform:rotate(180deg)}
.lang-menu{position:absolute;right:0;top:46px;min-width:170px;background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:0 12px 34px -12px rgba(15,23,42,.25);padding:6px;opacity:0;visibility:hidden;
  transform:translateY(-6px);transition:opacity .16s,transform .16s,visibility .16s}
.lang.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-menu button{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;border:0;background:none;
  border-radius:8px;cursor:pointer;font:inherit;font-size:14px;color:var(--ink);text-align:left}
.lang-menu button:hover{background:#f4f2ee}
.lang-menu button[aria-selected="true"]{color:var(--brand);font-weight:600}
.lang-menu .flag{font-size:16px;line-height:1}
.lang-menu .tick{margin-left:auto;color:var(--brand);opacity:0}
.lang-menu button[aria-selected="true"] .tick{opacity:1}

main{padding:clamp(40px,7vw,72px) 0 20px}
.doc h1{font-family:"Fraunces",Georgia,serif;font-weight:700;letter-spacing:-.02em;
  font-size:clamp(30px,5.5vw,46px);line-height:1.08;margin:0 0 10px}
.updated{color:var(--faint);font-size:14px;margin:0 0 8px}
.intro{color:var(--muted);font-size:clamp(16px,2vw,18px);margin:0 0 8px}
.doc-body h2{font-family:"Fraunces",Georgia,serif;font-weight:600;letter-spacing:-.01em;
  font-size:clamp(21px,3vw,27px);margin:38px 0 12px;line-height:1.2}
.doc-body h3{font-family:"Fraunces",Georgia,serif;font-weight:600;font-size:18px;margin:24px 0 8px}
.doc-body p{margin:0 0 14px;color:#3d3833}
.doc-body ul{margin:0 0 16px;padding-left:22px;color:#3d3833}
.doc-body li{margin:0 0 8px}
.doc-body strong{color:var(--ink);font-weight:600}
.doc-body .note{background:var(--brand-soft);border:1px solid #f6d9c8;border-radius:14px;padding:16px 18px;
  color:#9a3a0c;font-size:15px;margin:18px 0}
.doc-body table{width:100%;border-collapse:collapse;margin:8px 0 20px;font-size:15px}
.doc-body th,.doc-body td{text-align:left;padding:10px 12px;border:1px solid var(--line);vertical-align:top}
.doc-body th{background:#faf8f5;font-weight:600;font-family:"Sora",sans-serif}
.doc-body a{word-break:break-word}
.backhome{display:inline-flex;align-items:center;gap:7px;margin-bottom:26px;font-size:14px;font-weight:600;color:var(--muted)}
.backhome:hover{color:var(--ink);text-decoration:none}
.backhome svg{width:15px;height:15px}

footer{border-top:1px solid var(--line);margin-top:56px;padding:34px 0 46px}
.foot{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.foot .brand{font-size:17px}
.foot nav{display:flex;gap:20px;flex-wrap:wrap}
.foot nav a{color:var(--muted);font-size:14px}
.foot nav a:hover{color:var(--ink);text-decoration:none}
.copyright{color:var(--faint);font-size:13px;margin-top:16px}

@media(max-width:640px){.foot{flex-direction:column;align-items:flex-start}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}html{scroll-behavior:auto}}