:root{
  --bg:#fbfaf6; --card:#ffffff; --ink:#15302b; --ink2:#46564f; --mute:#7b877f;
  --brand:#1f6f5c; --brand-d:#165546; --brand-l:#e4f0ea; --accent:#e8a33d;
  --line:#e6e2d8; --dark:#10241f; --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 -apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand)}
a:hover{color:var(--brand-d)}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .6em;letter-spacing:-.01em}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}

/* top bar */
.topbar{background:var(--dark);color:#cfdcd6;font-size:.84rem}
.topbar .wrap{display:flex;gap:22px;justify-content:space-between;padding-top:7px;padding-bottom:7px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none}

/* header */
header.main{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
header.main .wrap{display:flex;align-items:center;gap:24px;height:70px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:1.12rem}
.brand svg{flex:none}
.brand small{display:block;font-weight:500;font-size:.72rem;color:var(--mute);letter-spacing:.06em;text-transform:uppercase}
nav.menu{margin-left:auto}
nav.menu ul{list-style:none;margin:0;padding:0;display:flex;gap:6px}
nav.menu a{display:block;padding:8px 14px;border-radius:8px;text-decoration:none;color:var(--ink2);font-weight:500}
nav.menu a:hover,nav.menu a.on{background:var(--brand-l);color:var(--brand-d)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;font-size:1.3rem;padding:4px 11px;cursor:pointer;color:var(--ink)}

/* buttons */
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:10px;padding:12px 22px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;transition:background .15s}
.btn:hover{background:var(--brand-d);color:#fff}
.btn.ghost{background:transparent;color:var(--brand);box-shadow:inset 0 0 0 1.5px var(--brand)}
.btn.ghost:hover{background:var(--brand-l);color:var(--brand-d)}
.btn.sm{padding:8px 16px;font-size:.92rem}
.btn:disabled{opacity:.6;cursor:default}

/* hero */
.hero{padding:64px 0 56px;background:linear-gradient(180deg,#f1f6f2 0%,var(--bg) 100%)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;background:var(--brand-l);color:var(--brand-d);font-size:.8rem;font-weight:600;padding:5px 12px;border-radius:99px;margin-bottom:16px;letter-spacing:.02em}
.hero h1{font-size:2.6rem}
.hero p.lead{font-size:1.1rem;color:var(--ink2);max-width:540px}
.hero .cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 20px 50px -24px rgba(21,48,43,.35)}
.hero-card img{border-radius:14px}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.chip{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:.84rem;color:var(--ink2)}
.chip b{color:var(--ink);display:block;font-size:.95rem}

/* sections */
section{padding:64px 0}
.head{max-width:680px;margin-bottom:32px}
.head h2{font-size:1.9rem}
.head p{color:var(--ink2);margin:0}
.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* filter + products */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.tabs button{background:#fff;border:1px solid var(--line);color:var(--ink2);border-radius:99px;padding:7px 16px;font:inherit;font-size:.9rem;cursor:pointer}
.tabs button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px -18px rgba(21,48,43,.4)}
.card .pic{background:#f3f5f1;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;padding:18px}
.card .pic img{max-height:100%;width:auto}
.card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.tag{font-size:.74rem;font-weight:600;color:var(--brand);text-transform:uppercase;letter-spacing:.06em}
.card h3{font-size:1.08rem;margin:6px 0 4px}
.card .sku{font-size:.82rem;color:var(--mute);margin:0 0 10px}
.card .desc{font-size:.93rem;color:var(--ink2);margin:0 0 16px;flex:1}
.card .row{display:flex;justify-content:space-between;align-items:center;gap:10px}
.price{font-weight:700;font-size:1.2rem}
.price small{font-weight:400;font-size:.8rem;color:var(--mute)}

/* split cards */
.two{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.panel.dark{background:var(--dark);color:#d8e4de;border-color:var(--dark)}
.panel.dark h3{color:#fff}
.panel ul{padding-left:20px;margin:12px 0 20px}
.panel li{margin-bottom:6px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative}
.step::before{counter-increment:s;content:counter(s);display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;margin-bottom:14px}
.step p{color:var(--ink2);margin:0}

/* trust row */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.trust div{padding:20px;border-left:3px solid var(--brand);background:#fff;border-radius:0 10px 10px 0}
.trust h4{font-size:1rem;margin-bottom:4px}
.trust p{font-size:.9rem;color:var(--ink2);margin:0}

/* facts */
.facts dl{display:grid;grid-template-columns:150px 1fr;gap:10px 18px;margin:0}
.facts dt{color:var(--mute);font-size:.9rem}
.facts dd{margin:0;font-weight:500}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px;margin-bottom:10px}
.faq summary{cursor:pointer;padding:16px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand);font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--ink2)}

/* inner pages */
.pagehead{background:linear-gradient(180deg,#f1f6f2,var(--bg));padding:40px 0 26px}
.crumb{font-size:.86rem;color:var(--mute);margin:0 0 8px}
.crumb a{color:var(--mute)}
.pagehead h1{font-size:2.1rem;margin:0}
.pagehead .upd{color:var(--mute);margin:6px 0 0;font-size:.92rem}
.doc{max-width:820px;padding:28px 0 64px}
.doc h2{font-size:1.25rem;margin-top:34px}
.doc p,.doc li{color:var(--ink2)}
.docs{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:18px 0}
.docs figure{margin:0}
.docs img{border:1px solid var(--line);border-radius:10px}
.docs figcaption{font-size:.85rem;color:var(--mute);margin-top:6px}

/* forms */
.field{margin-bottom:14px}
.field label{display:block;font-size:.9rem;font-weight:600;margin-bottom:5px}
.field input,.field textarea,.field select{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:9px;font:inherit;background:#fff;color:var(--ink)}
.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--brand-l);border-color:var(--brand)}
.field .err{display:none;color:#b3261e;font-size:.83rem;margin-top:4px}
.field.bad input,.field.bad textarea{border-color:#b3261e}
.field.bad .err{display:block}
.note{font-size:.86rem;color:var(--mute)}

/* modal */
.mask{position:fixed;inset:0;background:rgba(16,36,31,.55);display:none;align-items:center;justify-content:center;padding:16px;z-index:100}
.mask.on{display:flex}
.modal{background:#fff;border-radius:16px;width:100%;max-width:500px;max-height:92vh;overflow:auto}
.modal-hd{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--line)}
.modal-hd h3{margin:0;font-size:1.05rem}
.x{background:none;border:0;font-size:1.6rem;line-height:1;cursor:pointer;color:var(--mute)}
.modal-bd{padding:20px 22px 24px}
.sum{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:16px;font-size:.92rem}
.sum .line{display:flex;justify-content:space-between;padding:3px 0;color:var(--ink2)}
.sum .tot{display:flex;justify-content:space-between;border-top:1px dashed var(--line);margin-top:6px;padding-top:8px;font-weight:700}
.ok{text-align:center}
.ok .tick{width:56px;height:56px;border-radius:50%;background:var(--brand-l);color:var(--brand);font-size:1.8rem;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.ordno{font-family:ui-monospace,Consolas,monospace;font-size:1.1rem;font-weight:700;background:var(--bg);border:1px dashed var(--line);border-radius:8px;display:inline-block;padding:6px 14px;margin:4px 0 12px}

/* footer */
footer{background:var(--dark);color:#a9bab2;font-size:.92rem;padding:52px 0 24px}
footer h4{color:#fff;font-size:1rem}
footer a{color:#d8e4de;text-decoration:none}
footer a:hover{color:#fff;text-decoration:underline}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin-bottom:7px}
.f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}
.f-bot{border-top:1px solid #23413a;margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.84rem}

@media (max-width:900px){
  .hero .wrap,.two{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr 1fr}
  .steps,.trust{grid-template-columns:1fr 1fr}
  .f-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:2.1rem}
}
@media (max-width:720px){
  .burger{display:block}
  nav.menu{position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);display:none}
  nav.menu.open{display:block}
  nav.menu ul{flex-direction:column;padding:10px 16px}
  .topbar .hide-s{display:none}
}
@media (max-width:560px){
  .wrap{padding:0 16px}
  .grid,.steps,.trust,.f-grid,.docs{grid-template-columns:1fr}
  .facts dl{grid-template-columns:1fr;gap:2px}
  .facts dd{margin-bottom:10px}
  section{padding:48px 0}
  .hero{padding:44px 0}
  .hero h1{font-size:1.8rem}
}