:root{
  --bg1:#eef6ef;
  --bg2:#f8fbf8;
  --card:#f6fbf6;
  --card2:#ffffff;
  --border:#c6d8c6;
  --text:#1e2a1e;
  --muted:#526152;
  --green:#2e7d32;
  --green2:#1b5e20;
  --shadow: 0 14px 28px rgba(0,0,0,.08);
  --shadow-inset: inset 0 1px 0 rgba(255,255,255,.9), inset 0 -1px 0 rgba(0,0,0,.06);
  --radius: 18px;
  --w: 980px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--text);
  font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:
    radial-gradient(1000px 500px at 15% 10%, #dfeee0 0%, transparent 60%),
    radial-gradient(900px 460px at 85% 15%, #e7f2e8 0%, transparent 65%),
    linear-gradient(180deg,var(--bg2),var(--bg1));
}

a{color:inherit}
a.inline{color:var(--green2); text-decoration:underline; text-underline-offset:3px}
a.inline:hover{opacity:.9}

.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0
}

.site-header, .site-footer{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(248,251,248,.84);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(198,216,198,.8);
}

.site-footer{
  position:relative;
  top:auto;
  border-top:1px solid rgba(198,216,198,.8);
  border-bottom:none;
  background:rgba(248,251,248,.7);
}

.bar{
  max-width:var(--w);
  margin:0 auto;
  padding:12px 16px;
  display:flex;
  align-items:center;
  gap:14px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  flex:1 1 auto;
  min-width:0;
}
.brand img{flex:0 0 auto}
.brand-text{
  font-weight:700;
  letter-spacing:.2px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.nav-toggle{
  display:flex;
  align-items:center;
  justify-content:center;
  width:46px;height:46px;
  border-radius:14px;
  border:1px solid rgba(198,216,198,.9);
  background:linear-gradient(180deg,#fff,var(--card));
  box-shadow: var(--shadow-inset), 0 10px 20px rgba(0,0,0,.06);
  cursor:pointer;
}
.nav-toggle:active{transform: translateY(1px)}
.nav-toggle-lines{
  width:22px;height:14px; position:relative;
}
.nav-toggle-lines::before,
.nav-toggle-lines::after,
.nav-toggle-lines{
  display:block;
  content:"";
  background:#2a3a2a;
  border-radius:10px;
}
.nav-toggle-lines{height:2px}
.nav-toggle-lines::before{position:absolute; left:0; right:0; top:-6px; height:2px}
.nav-toggle-lines::after{position:absolute; left:0; right:0; top:6px; height:2px}

.nav{
  position:fixed;
  top:76px;
  left:0; right:0;
  padding:0 16px 18px;
  display:none;
}
.nav.open{display:block}
.nav-list{
  max-width:var(--w);
  margin:0 auto;
  list-style:none;
  padding:12px;
  border:1px solid rgba(198,216,198,.9);
  border-radius:var(--radius);
  background:linear-gradient(180deg,#fff,var(--card));
  box-shadow: var(--shadow);
}
.nav-item + .nav-item{border-top:1px solid rgba(198,216,198,.55)}
.nav-link{
  display:block;
  padding:12px 12px;
  text-decoration:none;
  color:var(--text);
}
.nav-link:hover{background:rgba(46,125,50,.06)}
.nav-link.active{
  color:var(--green2);
  font-weight:700;
}


@media (min-width: 900px){
  .nav{top:78px}
  .nav-list{
    display:grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap:0;
    padding:12px;
  }
  .nav-item + .nav-item{border-top:none}
  .nav-item:nth-child(n+3){border-top:1px solid rgba(198,216,198,.55)}
  .nav-item:nth-child(odd){border-right:1px solid rgba(198,216,198,.55)}
}


.site-main{padding:18px 0 26px}

.block{
  max-width:var(--w);
  margin:16px auto;
  padding:18px 18px;
  border-radius:var(--radius);
  border:1px solid rgba(198,216,198,.95);
  background:linear-gradient(180deg,#fff,var(--card));
  box-shadow: var(--shadow-inset), var(--shadow);
}

.block h1{
  font-size:26px;
  line-height:1.25;
  margin:10px 0 10px;
}
.lead{margin:0; color:var(--muted)}
.muted{color:var(--muted); margin:0}

.breadcrumbs{
  font-size:14px;
  color:var(--muted);
}
.breadcrumbs ol{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.breadcrumbs li{display:flex; align-items:center; gap:8px}
.breadcrumbs li::after{
  content:"›";
  opacity:.6;
}
.breadcrumbs li:last-child::after{content:""}
.breadcrumbs a{color:var(--muted); text-decoration:none}
.breadcrumbs a:hover{text-decoration:underline; text-underline-offset:3px}

.media{
  padding:14px;
}
.media img{
  display:block;
  width:100%;
  height:auto;
  border-radius:16px;
  border:1px solid rgba(198,216,198,.9);
  background:#fff;
}

.offers{background:linear-gradient(180deg,#fff,#fdfefe)}
.offers-wrap{
  overflow:hidden;
  border:2px solid rgba(40,60,40,.55);
  border-radius:16px;
  background:#fff;
}
.offers-table{
  width:100%;
  border-collapse:collapse;
  table-layout:fixed;
}
.offers-row + .offers-row{border-top:1px solid rgba(198,216,198,.7)}
.offers-cell{
  padding:14px 10px;
  text-align:center;
  vertical-align:middle;
  width:33.333%;
}
.offer-logo{
  display:inline-block;
  width:160px;
  height:50px;
  object-fit:contain;
}
.offer-sum{font-weight:700}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid rgba(198,216,198,.9);
  background:linear-gradient(180deg,#fff,var(--card));
  box-shadow: var(--shadow-inset);
  cursor:pointer;
  text-decoration:none;
  font-weight:700;
}
.btn:hover{opacity:.95}
.btn:active{transform: translateY(1px)}
.btn-green{
  background:linear-gradient(180deg,#3aa34b,var(--green));
  border-color:rgba(10,60,20,.35);
  color:#fff;
}
.btn-ghost{
  background:transparent;
  box-shadow:none;
}

@media (max-width: 640px){
  .offers-table, .offers-table tbody, .offers-row{display:block; width:100%}
  .offers-row{padding:12px 0}
  .offers-cell{
    display:block;
    width:100%;
    padding:8px 12px;
  }
  .offers-row + .offers-row{border-top:1px solid rgba(198,216,198,.7)}
}

.content h2{
  margin:0 0 10px;
  font-size:20px;
}
.content p{margin:0}
.content p + p{margin-top:10px}

.check{
  margin:12px 0 0;
  padding:0 0 0 18px;
}
.check li{margin:10px 0}
.check strong{color:#183018}

.mini{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  overflow:hidden;
  border-radius:14px;
  border:1px solid rgba(198,216,198,.9);
  background:#fff;
}
.mini td{
  padding:12px 12px;
  border-top:1px solid rgba(198,216,198,.7);
  vertical-align:top;
}
.mini tr:first-child td{border-top:none}
.mini td:first-child{width:38%}

.calc-head h2{margin:0 0 6px; font-size:20px}
.calc-form{margin-top:12px}
.calc-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap:12px;
}
.field{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.field span{font-size:14px; color:var(--muted)}
.field input,
.field textarea{

  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(198,216,198,.9);
  background:linear-gradient(180deg,#fff,#f3faf3);
  box-shadow: var(--shadow-inset);
  font:inherit;
  outline:none;
}
.field input:focus{border-color:rgba(46,125,50,.7)}
.calc-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:12px;
}
.calc-result{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap:12px;
  margin-top:14px;
  padding:14px;
  border-radius:16px;
  border:1px dashed rgba(198,216,198,.95);
  background:rgba(46,125,50,.04);
}
.result-item strong{display:block; font-size:18px; margin-top:2px}

@media (max-width: 640px){
  .calc-grid{grid-template-columns:1fr}
  .calc-result{grid-template-columns:1fr}
}

.faq h2{margin:0 0 10px; font-size:20px}
details{
  border:1px solid rgba(198,216,198,.9);
  border-radius:16px;
  background:linear-gradient(180deg,#fff,var(--card));
  box-shadow: var(--shadow-inset);
  padding:10px 12px;
}
details + details{margin-top:10px}
summary{
  cursor:pointer;
  font-weight:800;
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
summary::-webkit-details-marker{display:none}
summary::after{
  content:"+";
  font-size:20px;
  color:var(--green2);
  flex:0 0 auto;
}
details[open] summary::after{content:"–"}
details p{margin:10px 0 0; color:var(--muted)}

.footer-bar{
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}
.footer-links a{
  text-decoration:none;
  color:var(--muted);
}
.footer-links a:hover{text-decoration:underline; text-underline-offset:3px}
.sep{color:rgba(82,97,82,.7)}
.footer-note{color:rgba(82,97,82,.9)}