:root{
  --ink:#10253a;--ink-2:#173a4d;--paper:#f7f8f5;--white:#fff;--muted:#5f6f7b;
  --line:#dce4e5;--accent:#0f8f7a;--accent-2:#d8922b;--soft:#eaf5f2;--danger:#9d3d32;
  --shadow:0 18px 45px rgba(16,37,58,.09);--radius:18px;--max:1160px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);line-height:1.62}
a{color:var(--ink-2);text-decoration-thickness:1px;text-underline-offset:3px}
img{max-width:100%;height:auto}
.container{width:min(var(--max),calc(100% - 36px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,245,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;letter-spacing:-.02em}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--ink);color:white;font-size:13px}
.nav-links{display:flex;align-items:center;gap:20px;font-size:14px}
.nav-links a{text-decoration:none}
.menu-btn{display:none;border:1px solid var(--line);background:white;border-radius:10px;padding:8px 10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 18px;border:1px solid transparent;font-weight:750;text-decoration:none;cursor:pointer;font:inherit}
.btn-primary{background:var(--accent);color:white}
.btn-secondary{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-small{padding:9px 14px;font-size:14px}
.hero{padding:72px 0 52px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.eyebrow{font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
h1,h2,h3{line-height:1.12;letter-spacing:-.035em;margin:0 0 16px}
h1{font-size:clamp(42px,6vw,72px);max-width:900px}
h2{font-size:clamp(30px,4vw,46px)}
h3{font-size:23px}
.lead{font-size:clamp(18px,2vw,22px);color:var(--muted);max-width:760px}
.hero-actions,.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-card,.card,.panel,.form-shell,.calc-shell{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:28px}
.signal{display:flex;justify-content:space-between;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}
.signal:last-child{border-bottom:0}
.signal strong{display:block}
.signal span{color:var(--muted);font-size:14px}
.section{padding:56px 0}
.section-tight{padding:34px 0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{padding:24px}
.card p:last-child{margin-bottom:0}
.kicker{font-weight:800;color:var(--accent);font-size:13px;text-transform:uppercase;letter-spacing:.08em}
.clean-list{padding-left:20px}
.clean-list li{margin:9px 0}
.band{background:var(--ink);color:white;padding:54px 0}
.band .lead,.band p{color:#d4e0e6}
.band a:not(.btn){color:white}
.page-hero{padding:58px 0 30px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(38px,5vw,62px);max-width:960px}
.page-hero .lead{max-width:820px}
.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumbs a{color:var(--muted)}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:42px;padding:46px 0 70px}
.article{min-width:0}
.article h2{margin-top:42px}
.article h3{margin-top:30px}
.article p,.article li{font-size:17px}
.article .answer{font-size:20px;background:var(--soft);border-left:4px solid var(--accent);padding:18px 20px;border-radius:0 12px 12px 0}
.sidebar{position:sticky;top:96px;align-self:start}
.sidebar .card{box-shadow:none}
.note{border:1px solid var(--line);border-radius:14px;padding:16px 18px;background:#fff}
.note strong{display:block;margin-bottom:5px}
.fit-card{border:1px solid #b9ddd5;background:var(--soft);border-radius:16px;padding:22px}
.warning{border-left:4px solid var(--accent-2);padding:12px 16px;background:#fff7e7;border-radius:0 10px 10px 0}
table{width:100%;border-collapse:collapse;background:white;border:1px solid var(--line);border-radius:14px;overflow:hidden}
th,td{padding:13px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#eef2f1}
tr:last-child td{border-bottom:0}
.faq details{background:white;border:1px solid var(--line);border-radius:12px;padding:15px 16px;margin:10px 0}
.faq summary{font-weight:750;cursor:pointer}
.cta-box{background:var(--ink);color:white;border-radius:20px;padding:30px;margin-top:40px}
.cta-box p{color:#d4e0e6}
.cta-box .btn-secondary{border-color:white;color:white}
.form-shell,.calc-shell{padding:28px;max-width:850px;margin:0 auto}
.progress{height:8px;border-radius:999px;background:#e4e9e8;overflow:hidden;margin:14px 0 28px}
.progress-bar{height:100%;background:var(--accent);width:16.66%;transition:width .2s}
.step{display:none}
.step.active{display:block}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
label,.label{font-weight:700;font-size:14px}
input,select,textarea{width:100%;padding:12px 13px;border:1px solid #becaca;border-radius:10px;background:white;color:var(--ink);font:inherit}
textarea{min-height:110px;resize:vertical}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.check{display:flex;gap:9px;align-items:flex-start;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:14px}
.check input{width:auto;margin-top:4px}
.form-actions{display:flex;justify-content:space-between;gap:12px;margin-top:24px}
.help{font-size:13px;color:var(--muted)}
.error{color:var(--danger);font-weight:700;min-height:24px}
.review{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.review div{background:#f1f4f3;border-radius:10px;padding:12px}
.review strong{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.metric{font-size:32px;font-weight:850;letter-spacing:-.04em}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.result-box{background:var(--soft);border-radius:14px;padding:20px;margin-top:20px}
.callout-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.callout{background:white;border:1px solid var(--line);border-radius:14px;padding:18px}
.site-footer{padding:44px 0 30px;border-top:1px solid var(--line);background:#eef1ee}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px}
.footer-grid a{display:block;margin:7px 0;font-size:14px}
.footer-bottom{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;color:var(--muted);font-size:13px}
.tag{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:5px 9px;font-size:12px;margin:3px;background:white}
@media(max-width:850px){
 .hero-grid,.article-wrap,.grid-3,.grid-2,.footer-grid,.callout-row{grid-template-columns:1fr}
 .nav-links{display:none;position:absolute;left:18px;right:18px;top:64px;background:white;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
 .nav-links.open{display:grid}
 .menu-btn{display:inline-block}
 .sidebar{position:static}
 .form-grid,.calc-grid,.review,.check-grid{grid-template-columns:1fr}
 .hero{padding-top:48px}
}