:root{--bg:#F7F8FA;--ink:#0B1220;--muted:#4B5563;--line:#E3E6EB;--card:#FFFFFF;--accent:#0F9F8C;--accent-soft:#E2F7F3;--dark:#0B1220;--dark-ink:#E6EDF5;--dark-muted:#9AA8B8;--on-accent:#FFFFFF}
@media (prefers-color-scheme:dark){:root{--bg:#0A0F1A;--ink:#E6EDF5;--muted:#9AA8B8;--line:#1E2A3B;--card:#101826;--accent:#2DD4BF;--accent-soft:#0F2A2A;--on-accent:#0B1220}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
header.top{border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:19px;letter-spacing:-.01em}
.brand img{width:32px;height:32px}
.brand span{color:var(--accent)}
nav.links{display:flex;gap:20px;font-size:15px}
nav.links a{color:var(--muted);text-decoration:none}
nav.links a:hover{color:var(--ink)}
.hero{padding:72px 0 48px}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
h1{font-size:clamp(32px,5vw,52px);line-height:1.1;letter-spacing:-.02em;margin:12px 0 18px;max-width:820px}
.lead{font-size:19px;color:var(--muted);max-width:680px;margin:0}
h2{font-size:28px;letter-spacing:-.01em;margin:0 0 8px}
section{padding:48px 0}
.sub{color:var(--muted);margin:0 0 28px;max-width:680px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.card h3{margin:0 0 6px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:15px}
.host{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;color:var(--accent);margin-bottom:8px;display:block}
.flow{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.step{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-size:15px}
.step b{display:block;font-size:13px;color:var(--accent);font-weight:600}
.arrow{color:var(--muted)}
.preview{background:var(--dark);border-radius:18px;padding:20px;overflow-x:auto;color:var(--dark-ink)}
.preview .bar{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.preview .pill{border:1px solid #24324A;border-radius:8px;padding:5px 10px;font-size:13px;color:var(--dark-muted)}
.preview .pill.on{background:#2DD4BF;border-color:#2DD4BF;color:#0B1220;font-weight:600}
.preview table{border-collapse:collapse;width:100%;min-width:720px;font-size:13px;font-variant-numeric:tabular-nums}
.preview th{color:var(--dark-muted);font-weight:600;text-align:right;padding:8px 10px;border-bottom:1px solid #24324A}
.preview td{text-align:right;padding:8px 10px;border-bottom:1px solid #18233A}
.preview th:first-child,.preview td:first-child{text-align:left}
.preview .ok{color:#34D399}.preview .wait{color:#FBBF24}
.two{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.note{font-size:14px;color:var(--muted)}
ul.plain{margin:0;padding-left:18px;color:var(--muted)}
ul.plain li{margin:4px 0}
footer{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.doc{padding-top:40px;padding-bottom:56px}
.doc h1{font-size:34px}
.doc h2{font-size:21px;margin-top:32px}
.doc p,.doc li{color:var(--muted)}
.doc table{border-collapse:collapse;width:100%;font-size:15px}
.doc td,.doc th{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
.doc .tbl{overflow-x:auto}
@media (max-width:640px){nav.links{gap:14px;font-size:14px}.hero{padding:48px 0 32px}.lead{font-size:17px}}
@media (max-width:640px){.flow{flex-direction:column;align-items:stretch}.arrow{display:none}}
.choice{margin:18px 0}
.btn{font:inherit;font-size:15px;font-weight:600;padding:12px 20px;border-radius:10px;border:1px solid var(--accent);background:var(--accent);color:var(--on-accent);cursor:pointer}
.btn.ghost{background:transparent;color:var(--accent)}
.btn:focus-visible{outline:3px solid var(--accent-soft);outline-offset:2px}
.doc code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}
.form{display:flex;flex-direction:column;gap:6px;max-width:560px}
.form label{font-weight:600;font-size:14px;margin-top:10px}
.form .opt{font-weight:400;color:var(--muted)}
.form input,.form select,.form textarea{font:inherit;font-size:16px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--accent);outline-offset:1px}
.form .btn{align-self:flex-start;margin-top:8px}
.form .btn:disabled{opacity:.6;cursor:progress}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.status{min-height:1.4em;font-size:15px}
.status.ok{color:var(--accent)}
.status.err{color:#C2410C}
@media (max-width:640px){nav.links a[href*="#"]{display:none}nav.links{gap:12px}}