:root{--r:8px;--serif:"Iowan Old Style","Palatino Linotype",Georgia,serif;--bg:#fff;--fg:#14213d;--muted:#4a5568;--accent:#2f4bff;--accent-fg:#fff;--line:#d9dee7;--card:#f5f7fa;--warn:#eef1ff}
@media (prefers-color-scheme:dark){:root{--bg:#0f1624;--fg:#e8edf5;--muted:#a9b4c4;--accent:#8fa0ff;--accent-fg:#0b1030;--line:#2a3550;--card:#172033;--warn:#1c2447}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:1rem/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent)}
a:focus-visible,.btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.skip{position:absolute;left:-999px}
.skip:focus{left:8px;top:8px;background:var(--bg);padding:.5rem;z-index:9}
.wrap{max-width:46rem;margin:0 auto;padding:0 1rem}
header.site{border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;flex-wrap:wrap;gap:.5rem 1.25rem;align-items:center;justify-content:space-between;padding-top:.9rem;padding-bottom:.9rem}
.brand{font-weight:700;font-size:1.2rem;color:var(--fg);text-decoration:none}
nav a{margin-right:1rem;color:var(--fg)}
main{padding:2rem 0 3rem}
h1{font-size:clamp(1.7rem,5vw,2.4rem);line-height:1.2;margin:0 0 1rem}
h2{font-size:1.35rem;margin:2.2rem 0 .6rem}
h3{font-size:1.1rem;margin:1.4rem 0 .4rem}
.lead{font-size:1.15rem;color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:var(--accent-fg);padding:.75rem 1.25rem;border-radius:var(--r);font-weight:600;text-decoration:none}
.btn.alt{background:transparent;color:var(--accent);border:2px solid var(--accent)}
.cards{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));margin:1rem 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1rem}
.card h3{margin-top:0}
.note{background:var(--warn);border-radius:var(--r);padding:.8rem 1rem;margin:1.2rem 0}
table{border-collapse:collapse;width:100%;margin:1rem 0;font-size:.95rem}
th,td{border:1px solid var(--line);padding:.5rem .6rem;text-align:left;vertical-align:top}
th{background:var(--card)}
footer.site{border-top:1px solid var(--line);padding:1.5rem 0;color:var(--muted);font-size:.9rem}
footer.site a{color:var(--muted);margin-right:1rem}
.meta{color:var(--muted);font-size:.9rem}

/* landing */
.wide{max-width:72rem}
body.home{font-family:"Avenir Next","Helvetica Neue",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
body.home h1,body.home h2,body.home h3{font-weight:700;letter-spacing:-.025em}
body.home main{padding-top:0}
.top{text-align:center;padding:3.5rem 0 2rem;max-width:46rem;margin:0 auto}
.top h1{font-size:clamp(2.2rem,6.5vw,3.8rem);line-height:1.08;margin-bottom:1.1rem}
.top .lead{margin:0 auto 1.6rem}
.btn{border-radius:var(--r)}
.status{display:inline-block;font-size:.85rem;color:var(--muted);margin-top:1rem}
.win{border:1px solid var(--line);border-radius:12px;background:var(--bg);box-shadow:0 18px 50px -20px rgba(20,33,61,.35);overflow:hidden;font-size:.9rem}
.win .bar{display:flex;align-items:center;gap:.4rem;padding:.55rem .8rem;border-bottom:1px solid var(--line);background:var(--card);color:var(--muted);font-size:.78rem}
.win .bar i{width:.6rem;height:.6rem;border-radius:50%;background:var(--line)}
.win .bar span{margin-left:.6rem}
.app{display:grid}
@media(min-width:48rem){.app{grid-template-columns:13rem 1fr}}
.side{padding:.9rem;border-right:1px solid var(--line);background:var(--card);color:var(--muted)}
.side b{display:block;color:var(--fg);font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;margin:.3rem 0 .5rem}
.side p{margin:.25rem 0;padding:.25rem .5rem;border-radius:6px}
.side p.on{background:var(--bg);color:var(--fg);font-weight:600;border:1px solid var(--line)}
@media(max-width:47.99rem){.side{display:none}}
.list{padding:0;margin:0;list-style:none}
.list li{display:grid;grid-template-columns:auto 1fr;gap:.2rem .8rem;padding:.8rem 1rem;border-bottom:1px solid var(--line)}
.list li:last-child{border-bottom:0}
.tag{font-size:.72rem;font-weight:700;padding:.1rem .5rem;border-radius:4px;align-self:start;margin-top:.15rem}
.t-hi{background:var(--accent);color:var(--accent-fg)}
.t-mid{border:1px solid var(--accent);color:var(--accent)}
.t-lo{border:1px solid var(--line);color:var(--muted)}
.list strong{display:block}
.list small{color:var(--muted);font-size:.82rem}
.cap{font-size:.8rem;color:var(--muted);text-align:center;margin:.7rem 0 0}
.row{display:grid;gap:1.8rem;align-items:center;padding:3.5rem 0}
@media(min-width:52rem){.row{grid-template-columns:1fr 1.15fr;gap:4rem}.row.flip>:first-child{order:2}}
.row h2{font-size:clamp(1.6rem,4vw,2.3rem);line-height:1.15;margin:0 0 .8rem}
.row p{color:var(--muted);font-size:1.08rem}
.pane{padding:1.1rem}
.pane h3{margin:0 0 .6rem;font-size:1.05rem}
.pane dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:.35rem 1rem}
.pane dt{color:var(--muted)}
.pane dd{margin:0}
.acts{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.acts span{border:1px solid var(--line);border-radius:6px;padding:.35rem .8rem;font-weight:600;font-size:.85rem}
.acts span:first-child{background:var(--accent);border-color:var(--accent);color:var(--accent-fg)}
.log{margin:1rem 0 0;padding:.7rem 0 0;border-top:1px solid var(--line);color:var(--muted);font-size:.82rem}
.checks{display:grid;gap:0;border-top:1px solid var(--line);margin:1.2rem 0}
@media(min-width:44rem){.checks{grid-template-columns:1fr 1fr;column-gap:3rem}}
.checks div{padding:.9rem 0;border-bottom:1px solid var(--line)}
.checks b{display:block}
.checks span{color:var(--muted)}
.limits{background:var(--card);border-radius:12px;padding:2rem;margin:2rem 0}
.limits h2{margin-top:0}
.limits li{margin:.5rem 0}
.cta{background:var(--fg);color:var(--bg);border-radius:12px;padding:2.5rem 1.5rem;text-align:center;margin:3rem 0 0}
.cta h2{margin:0 0 .6rem;font-size:clamp(1.6rem,4vw,2.2rem)}
.cta p{margin:.4rem 0 1.2rem;opacity:.85}
.cta .btn{background:var(--bg);color:var(--fg)}