:root{--ink:#1d2433;--muted:#5b6475;--line:#cfd5df;--soft:#e6eaf0;--brand:#0f6e5a;--brand-dark:#0b5446;--bg:#f7f8fa;--warn:#8a5200;--err:#a12222}
*{box-sizing:border-box}
body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand-dark)}
.wrap{max-width:980px;margin:0 auto;padding:0 20px}
.top{background:#fff;border-bottom:1px solid var(--soft)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none;font-size:1.05rem}
.brand img{display:block;border-radius:6px}
nav{display:flex;flex-wrap:wrap;gap:6px 20px;align-items:center}
nav a{color:var(--ink);text-decoration:none}
nav a:hover{text-decoration:underline}
nav a.signin{border:1px solid var(--brand);color:var(--brand-dark);border-radius:6px;padding:5px 12px}
main{padding-top:36px;padding-bottom:56px}
h1{font-size:2rem;line-height:1.2;margin:0 0 .6em;letter-spacing:-.01em}
h2{font-size:1.3rem;margin:2.2rem 0 .6rem}
h3{font-size:1.05rem;margin:1.2rem 0 .3rem}
.lead{font-size:1.15rem;max-width:44rem}
.hero{padding:20px 0 8px}
.hero h1{font-size:2.4rem;max-width:20em}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin:1.2rem 0}
.steps3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:1rem 0;padding:0;list-style:none;counter-reset:s}
.steps3 li{background:#fff;border:1px solid var(--soft);border-radius:8px;padding:16px 18px;counter-increment:s}
.steps3 li::before{content:counter(s);display:inline-block;width:28px;height:28px;line-height:28px;text-align:center;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;margin-bottom:8px}
.steps3 b{display:block;margin-bottom:4px}
table{border-collapse:collapse;width:100%;margin:1rem 0;background:#fff}
th,td{border:1px solid var(--soft);padding:8px 10px;text-align:left;vertical-align:top}
th{background:#eef1f5}
.btn{display:inline-block;background:var(--brand);color:#fff;border:1px solid var(--brand);border-radius:6px;padding:10px 16px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer}
.btn:hover{background:var(--brand-dark)}
.btn.secondary{background:#fff;color:var(--brand-dark)}
.btn.secondary:hover{background:#eef5f3}
.btn.small{padding:5px 10px;font-size:.9rem;font-weight:500}
.btn.danger{background:#fff;color:var(--err);border-color:var(--err)}
.card{background:#fff;border:1px solid var(--soft);border-radius:8px;padding:18px 20px;margin:16px 0}
.card>h2:first-child,.card>h3:first-child{margin-top:0}
.ok{color:var(--brand-dark);font-weight:600}
.warn{color:var(--warn)}
.err{color:var(--err)}
.flash{border-left:4px solid var(--brand);font-weight:600}
.flash.err{border-left-color:var(--err)}
.muted{color:var(--muted);font-size:.92rem}
label{display:block;margin:12px 0 4px;font-weight:600}
input[type=text],input[type=email],input[type=url],select,textarea{width:100%;max-width:520px;padding:8px 10px;border:1px solid #8d97a8;border-radius:6px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:1px}
input.short{max-width:140px}
textarea{min-height:76px;max-width:100%}
input[type=checkbox]{margin-right:8px}
.check{font-weight:400;margin:8px 0}
.row{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:flex-end}
.row>div{flex:0 1 auto}
.row label{margin-top:8px}
ol.steps li,ul.plain li{margin:8px 0}
code,.code{background:#eef1f5;padding:1px 5px;border-radius:4px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
textarea.code{display:block;width:100%;padding:10px;min-height:0;border:1px solid #8d97a8}
.foot{border-top:1px solid var(--soft);background:#fff;padding:18px 0;font-size:.92rem}
.foot a{margin-right:16px}
.price{font-size:2rem;font-weight:700;margin:.2em 0}
.zone{border:1px solid var(--line);border-radius:8px;padding:4px 16px 14px;margin:14px 0;background:#fcfcfd}
.zone h3{display:flex;flex-wrap:wrap;gap:8px;align-items:baseline;justify-content:space-between}
.pill{display:inline-block;padding:1px 9px;border-radius:10px;background:#eef1f5;font-size:.85rem;font-weight:500}
.pill.on{background:#dff1ec;color:var(--brand-dark)}
.pill.off{background:#fbe9e7;color:var(--err)}
.inline{display:inline}
.tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;align-items:center}
details{margin:8px 0}
summary{cursor:pointer;font-weight:600}
dl.facts{display:grid;grid-template-columns:max-content 1fr;gap:4px 16px;margin:.6rem 0}
dl.facts dt{color:var(--muted)}
dl.facts dd{margin:0}
@media (max-width:600px){.hero h1{font-size:1.8rem}h1{font-size:1.6rem}}