:root{--bg:#0f1424;--bg2:#161d33;--card:#1b2340;--line:#2a3458;--text:#e9ecf5;--muted:#a3abc6;--accent:#ffc83d;--accent-ink:#1a1400;--ok:#4ade80;--radius:14px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Helvetica Neue",Arial,sans-serif}
a{color:var(--accent)}
code,.code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
p code,td code,.lead code,.note code{background:#2a2410;color:var(--accent);padding:.05em .35em;border-radius:6px;font-size:.95em;unicode-bidi:isolate;direction:ltr}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.narrow{max-width:720px}
.top{border-bottom:1px solid var(--line);background:rgba(15,20,36,.9);backdrop-filter:blur(8px);position:sticky;top:0;z-index:10}
.top-in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;font-family:ui-monospace,Menlo,monospace;letter-spacing:.02em}
.brand-mark{width:30px;height:30px;border-radius:8px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-family:system-ui,sans-serif}
.lang{position:relative}
.lang summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:14px}
.lang summary::-webkit-details-marker{display:none}
.lang ul{position:absolute;inset-inline-end:0;top:calc(100% + 6px);margin:0;padding:6px;list-style:none;background:var(--bg2);border:1px solid var(--line);border-radius:12px;width:min(420px,calc(100vw - 32px));display:grid;grid-template-columns:repeat(2,1fr);gap:2px;max-height:70vh;overflow:auto;box-shadow:0 20px 40px rgba(0,0,0,.4)}
.lang li a{display:block;padding:7px 10px;border-radius:8px;color:var(--text);text-decoration:none;font-size:14px}
.lang li a:hover,.lang li a[aria-current]{background:var(--card);color:var(--accent)}
.hero{padding:56px 0 40px;text-align:center;background:radial-gradient(800px 360px at 50% -10%,rgba(255,200,61,.14),transparent 70%)}
.kicker{text-transform:uppercase;letter-spacing:.18em;font-size:12px;color:var(--muted);margin:0}
h1{font-size:clamp(30px,6vw,52px);line-height:1.12;margin:.35em 0 .3em;letter-spacing:-.01em}
h2{font-size:clamp(22px,3.4vw,28px);line-height:1.25;margin:0 0 .7em}
h3{font-size:17px;margin:0 0 .3em}
.lead{font-size:clamp(17px,2.4vw,20px);color:var(--muted);margin:0 auto 28px;max-width:620px}
.codecard{background:linear-gradient(135deg,#2b2412,#1b2340);border:1px solid #5a4a1c;border-radius:var(--radius);padding:20px;text-align:start;margin-bottom:18px}
.codecard-label{text-transform:uppercase;letter-spacing:.2em;font-size:11px;color:var(--muted)}
.codecard-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:10px}
.code{font-size:clamp(30px,7vw,42px);color:var(--accent);font-weight:700;letter-spacing:.06em;direction:ltr}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;padding:13px 22px}
.btn-copy{background:var(--text);color:var(--bg);min-width:140px}
.btn-copy.done{background:var(--ok)}
.btn-cta{background:var(--accent);color:var(--accent-ink);width:100%;font-size:18px;padding:16px 22px}
.btn-cta:hover{filter:brightness(1.06)}
.note{font-size:14px;color:var(--muted);margin:14px 0 0}
.block{padding:36px 16px}
.summary{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden}
.summary th,.summary td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:start;vertical-align:top}
.summary tr:last-child th,.summary tr:last-child td{border-bottom:0}
.summary th{color:var(--muted);font-weight:500;width:45%}
.steps{list-style:none;counter-reset:s;margin:0 0 24px;padding:0;display:grid;gap:12px}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px 16px 64px;position:relative}
[dir=rtl] .steps li{padding:16px 64px 16px 18px}
.steps li::before{content:counter(s);position:absolute;inset-inline-start:18px;top:16px;width:32px;height:32px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:800}
.steps p,.card p{margin:0;color:var(--muted)}
.center{max-width:720px;margin:0 auto}
.narrow-h{max-width:720px;margin-inline:auto}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;font-weight:600;padding:10px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin:0 0 12px;color:var(--muted)}
.rg{border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:var(--bg2)}
.rg h2{font-size:20px;margin-bottom:.4em}
.rg p{margin:0;color:var(--muted)}
.foot{border-top:1px solid var(--line);margin-top:24px;padding:28px 0 40px;font-size:13px;color:var(--muted)}
.disclosure{max-width:820px}
.age{display:inline-block;border:1.5px solid var(--muted);border-radius:50%;padding:2px 5px;font-weight:700;font-size:11px;margin-inline-end:6px}
.foot-langs{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:16px}
.foot-langs a{color:var(--muted);text-decoration:none}
.foot-langs a:hover{color:var(--accent)}
[dir=rtl] .btn-cta span{display:inline-block;transform:scaleX(-1)}
:is(:lang(hi),:lang(bn),:lang(ur),:lang(pa),:lang(gu),:lang(mr),:lang(ta),:lang(te),:lang(kn),:lang(ml),:lang(ne),:lang(si),:lang(th),:lang(lo),:lang(km),:lang(my),:lang(ar),:lang(he),:lang(am),:lang(ja),:lang(ko),:lang(zh-Hans),:lang(zh-Hant)) :is(.kicker,.codecard-label){letter-spacing:0}