:root{
  --bg:#f7f8fa;--surface:#fff;--ink:#14181f;--muted:#5b6472;--line:#e2e6ec;--brand:#0b5fff;--brand-ink:#fff;
  --ok:#0a7d4d;--warn:#9a5b00;--bad:#b3261e;--code:#0f1623;--code-ink:#e6edf7;--radius:12px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#0d1117;--surface:#151b24;--ink:#e8edf4;--muted:#9aa5b5;--line:#263041;--brand:#4c8dff;--brand-ink:#08111f;
  --ok:#3fcf8e;--warn:#f0b24a;--bad:#ff7b72;--code:#0a0e14;--code-ink:#dbe6f5}}
:root[data-theme=dark]{--bg:#0d1117;--surface:#151b24;--ink:#e8edf4;--muted:#9aa5b5;--line:#263041;--brand:#4c8dff;--brand-ink:#08111f;--ok:#3fcf8e;--warn:#f0b24a;--bad:#ff7b72;--code:#0a0e14;--code-ink:#dbe6f5}
*{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,sans-serif}
a{color:var(--brand)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.top{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
header.top .wrap{display:flex;align-items:center;gap:16px;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;letter-spacing:-.02em;color:var(--ink);text-decoration:none;white-space:nowrap}
.logo b{color:var(--brand)}
nav.main{display:flex;gap:4px 14px;flex-wrap:wrap;flex:1}
nav.main a{color:var(--muted);text-decoration:none;padding:6px 2px;white-space:nowrap}
nav.main a:hover,nav.main a[aria-current=page]{color:var(--ink)}
.btn{display:inline-block;border:1px solid var(--brand);background:var(--brand);color:var(--brand-ink);padding:10px 18px;border-radius:10px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;white-space:nowrap;min-height:44px}
.btn.ghost{background:transparent;color:var(--brand)}
.btn.small{padding:6px 12px;min-height:36px;font-size:.9rem}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.btn.danger{border-color:var(--bad);background:transparent;color:var(--bad)}
main{padding:32px 0 64px}
h1{font-size:clamp(1.9rem,5vw,3rem);line-height:1.12;letter-spacing:-.03em;margin:0 0 16px}
h2{font-size:1.5rem;letter-spacing:-.02em;margin:40px 0 12px}
h3{font-size:1.1rem;margin:24px 0 8px}
p.lead{font-size:1.15rem;color:var(--muted);max-width:60ch}
.hero{padding:40px 0 16px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px}
.grid>*{min-width:0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card h3{margin-top:0}
.pill{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:2px 10px;font-size:.8rem;color:var(--muted);white-space:nowrap}
.pill.sim{border-color:var(--warn);color:var(--warn)}
.pill.ok{border-color:var(--ok);color:var(--ok)}
.sandbox-banner{background:#fff6e8;color:#6a3d00;border-bottom:1px solid #e2b56a;padding:10px 16px;text-align:center;font-size:.95rem;line-height:1.45}
.sandbox-banner strong{font-weight:700}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .sandbox-banner{background:#2c210f;color:#f6d7a2;border-bottom-color:#6b5428}}
:root[data-theme=dark] .sandbox-banner{background:#2c210f;color:#f6d7a2;border-bottom-color:#6b5428}
.notice{border:1px solid var(--warn);border-left-width:4px;background:var(--surface);border-radius:8px;padding:12px 16px;margin:16px 0}
.notice.err{border-color:var(--bad)}
pre,code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem}
pre{background:var(--code);color:var(--code-ink);border-radius:10px;padding:14px 16px;overflow-x:auto;max-width:100%}
code{background:var(--line);padding:1px 6px;border-radius:5px;overflow-wrap:anywhere}
pre code{background:none;padding:0;overflow-wrap:normal}
.tablewrap{overflow-x:auto;max-width:100%}
table{border-collapse:collapse;width:100%}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th:first-child,td:first-child{white-space:nowrap}
th{font-size:.82rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
td.num,th.num{text-align:right;white-space:nowrap}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:16px 0 8px}
.tabs button{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 14px;border-radius:999px;font:inherit;cursor:pointer;white-space:nowrap;min-height:40px}
.tabs button[aria-selected=true]{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.panel[hidden]{display:none}
.price{font-size:1.9rem;font-weight:800}
ul.tick{list-style:none;padding:0;margin:12px 0}
ul.tick li{padding:3px 0 3px 26px;position:relative}
ul.tick li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}
form.inline,.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
input[type=text],input[type=email]{font:inherit;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);min-height:44px;min-width:0;flex:1 1 220px}
.meter{height:10px;border-radius:99px;background:var(--line);overflow:hidden}
.meter>i{display:block;height:100%;background:var(--brand)}
.kv{display:grid;grid-template-columns:max-content 1fr;gap:6px 18px}
.kv dt{color:var(--muted);white-space:nowrap}.kv dd{margin:0;min-width:0;overflow-wrap:anywhere}
footer{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:.9rem}
footer .wrap{display:flex;gap:8px 24px;flex-wrap:wrap}
.keybox{background:var(--code);color:var(--code-ink);border-radius:10px;padding:12px 14px;overflow-wrap:anywhere;font-family:ui-monospace,Menlo,monospace}
.sr{position:absolute;left:-9999px}
@media(max-width:560px){main{padding-top:20px}.kv{grid-template-columns:1fr}.kv dt{margin-top:8px}}
hr.rule{border:0;border-top:1px solid var(--line);margin:20px 0}
.muted{color:var(--muted)}
.stack{display:grid;gap:16px;grid-template-columns:minmax(0,1fr)}
@media(max-width:720px){header.top .wrap{padding-top:10px;padding-bottom:6px}.logo{margin-right:auto}nav.main{order:3;flex:1 1 100%;gap:2px 16px}}