*{box-sizing:border-box}
body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#15202b;background:#f4f6f8}
a{color:#0b6e4f}a:hover{color:#095c42}
header,footer{background:#fff;border-bottom:1px solid #d8e0e8}
footer{border-top:1px solid #d8e0e8;border-bottom:0;margin-top:48px;font-size:14px;color:#5a6672}
.wrap{max-width:960px;margin:0 auto;padding:12px 16px}
nav{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.brand{font-weight:800;font-size:18px;text-decoration:none;color:#15202b;margin-right:auto}
.brand span{color:#0b6e4f}
nav a{text-decoration:none;font-size:14px;color:#5a6672;font-weight:500}
nav a:hover,nav a.active{color:#15202b}
h1{font-size:30px;line-height:1.2;margin:20px 0 8px;font-weight:800}
h2{font-size:21px;margin-top:32px;font-weight:700}
h3{font-size:16px;margin:0 0 6px;font-weight:700}
.lead{color:#5a6672;font-size:17px;max-width:640px}
.card{background:#fff;border:1px solid #d8e0e8;border-radius:12px;padding:18px;margin:14px 0}
.calc{display:grid;gap:18px}
@media(min-width:800px){.calc{grid-template-columns:1.1fr .9fr}}
.f{display:flex;flex-direction:column;margin:0 0 10px}
.f label{font-weight:600;font-size:13px;margin-bottom:3px}
.f .hint{font-size:12px;color:#5a6672;font-weight:400;margin-top:2px}
input,select,textarea{font:inherit;padding:9px 10px;border-radius:8px;border:1px solid #c5d0db;background:#fff;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid #0b6e4f;outline-offset:1px;border-color:#0b6e4f}
.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:520px){.two{grid-template-columns:1fr}}
.btn{display:inline-block;border:0;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600;cursor:pointer;background:#0b6e4f;color:#fff;text-decoration:none;transition:background .15s ease}
.btn:hover{background:#095c42;color:#fff}
.btn.sec{background:#eef2f5;color:#15202b}
.btn.sec:hover{background:#e2e8ee}
.btn.lg{padding:12px 20px;font-size:15px}
.btn.block{display:block;text-align:center;width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
#out,.result{background:#e8f5f0;border-radius:10px;padding:14px;min-height:100px}
.big{font-size:28px;font-weight:800;margin:0 0 2px;font-family:ui-monospace,Menlo,Consolas,monospace;word-break:break-word}
.metric-label{font-size:12px;color:#5a6672;text-transform:uppercase;letter-spacing:.04em;font-weight:600}
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0}
@media(max-width:420px){.metrics{grid-template-columns:1fr}}
.warn{background:#fff8eb;border:1px solid #f0d9a8;border-radius:8px;padding:10px 12px;font-size:14px;color:#7a4a0a;margin-top:10px}
.ok{background:#e8f5f0;border:1px solid #b7e0d0;border-radius:8px;padding:10px 12px;font-size:14px;margin-top:10px}
.err{color:#b42318;font-weight:600}
.small{font-size:13px;color:#5a6672}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}
.formula{background:#15202b;color:#f8fafc;border-radius:8px;padding:12px;font-family:ui-monospace,Menlo,Consolas,monospace;overflow-x:auto;white-space:pre-wrap;font-size:13px}
details.adv{background:#fff;border:1px solid #d8e0e8;border-radius:8px;padding:10px 14px;margin:8px 0}
details.adv summary{font-weight:600;cursor:pointer;font-size:14px}
.check{display:flex;align-items:flex-start;gap:8px;margin:8px 0;font-size:14px}
.check input{width:auto;margin-top:3px}
.pill{display:inline-block;background:#e8f5f0;color:#0b6e4f;font-size:12px;font-weight:700;padding:3px 8px;border-radius:999px}
.hero{padding:28px 0 8px}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.grid3{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));margin:16px 0}
.grid3 .card{margin:0}
.price-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));margin:16px 0}
.price-card{position:relative}
.price-card.featured{border-color:#0b6e4f;box-shadow:0 0 0 1px #0b6e4f}
.price{font-size:36px;font-weight:800;margin:4px 0}
.price span{font-size:15px;font-weight:500;color:#5a6672}
.faq details{background:#fff;border:1px solid #d8e0e8;border-radius:8px;padding:10px 14px;margin:8px 0}
.faq summary{font-weight:600;cursor:pointer}
.tbl{overflow-x:auto}
table.spec{width:100%;border-collapse:collapse;font-size:14px}
.spec th,.spec td{border-bottom:1px solid #d8e0e8;padding:8px 6px;text-align:left;vertical-align:top}
.spec th{color:#5a6672;font-weight:600}
.spec input{padding:6px 8px;font-size:13px}
.toast{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);background:#15202b;color:#fff;padding:10px 16px;border-radius:8px;font-size:14px;z-index:50;opacity:0;pointer-events:none;transition:opacity .15s ease}
.toast.show{opacity:1}
.ad-slot{border:1px dashed #c5d0db;border-radius:8px;padding:20px;text-align:center;color:#5a6672;font-size:13px;background:#fafbfc;margin:16px 0}
.section{margin:40px 0}
.cta-band{background:#fff;border:1px solid #d8e0e8;border-radius:12px;padding:24px;text-align:center;margin:32px 0}
ul.clean{padding-left:18px;margin:8px 0}
ul.clean li{margin:4px 0}
@media print{
  header,footer,.no-print,.ad-slot,.hero-cta,.actions{display:none!important}
  body{background:#fff}
  .card{border:none;padding:0}
  .wrap{max-width:100%}
}
@media(max-width:420px){h1{font-size:24px}.big{font-size:24px}}