/* ============ Вариант 3 «Полевой» — песок, олива, сигнальный оранжевый ============ */
:root{
  --sand:#e9e3d3; --sand-2:#dfd8c4; --cream:#f7f3ea; --white:#fffdf8;
  --olive:#4c5b31; --olive-2:#3a4626; --olive-3:#2c351d; --olive-soft:#d8dcc4;
  --ink:#1f2418; --ink-2:#4a5142; --muted:#7b806f; --line:#cfc8b3;
  --accent:#e3702c; --accent-2:#c85e20;
  --art-bg:var(--cream); --art-line:#2c351d; --art-1:#a9b487; --art-2:#8e9a6b; --art-3:#c6cea9; --art-accent:var(--accent);
  --font:"Rubik","Segoe UI",system-ui,sans-serif;
  --header-h:72px; --tabbar-h:76px; --sticky-h:calc(var(--header-h) + var(--tabbar-h));
  --wrap:1200px; --r:18px; --r-sm:10px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--sand);color:var(--ink);font:400 16px/1.6 var(--font)}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-weight:800;line-height:1.05;letter-spacing:-.01em;text-transform:uppercase}
h1{font-size:clamp(38px,5.4vw,68px)}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:18px;letter-spacing:0}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.kicker{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.section{padding:88px 0}
section{scroll-margin-top:calc(var(--sticky-h) + 8px)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{margin-top:10px}
.section-note{margin-top:14px;color:var(--ink-2);font-size:17px}
.block-title{font-size:26px;margin:0 0 22px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:50px;padding:0 26px;border-radius:999px;font:700 14px/1 var(--font);letter-spacing:.04em;text-transform:uppercase;border:2px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s,transform .15s}
.btn:active{transform:scale(.98)}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn-light{border-color:rgba(255,255,255,.5);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.12)}

/* header */
.site-header{position:sticky;top:0;z-index:50;height:var(--header-h);background:var(--olive-3);color:var(--cream);border-bottom:1px solid rgba(255,255,255,.12)}
.header-row{height:100%;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:38px;height:38px;color:var(--accent);flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-size:19px;font-weight:800;text-transform:uppercase;letter-spacing:.02em}
.brand-text small{font-size:11px;color:var(--olive-soft);letter-spacing:.08em;text-transform:uppercase;font-weight:500}
.nav{display:flex;flex:1;justify-content:space-between;gap:24px;white-space:nowrap}
.nav a{font-size:15px;font-weight:600;color:var(--olive-soft);padding:8px 0;letter-spacing:.02em;text-transform:uppercase}
.nav a:hover{color:#fff}
.header-side{display:flex;align-items:center;gap:16px}
.header-phone{font-weight:700;font-size:16px;white-space:nowrap}
.header-cta{height:42px;padding:0 18px}
.nav-toggle{display:none;width:44px;height:44px;border:2px solid rgba(255,255,255,.3);background:none;border-radius:999px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;margin-left:auto}
.nav-toggle span{width:18px;height:2px;background:var(--cream);transition:transform .2s,opacity .2s}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* banner */
.banner{background:var(--olive-3);color:var(--cream);padding:88px 0 80px;position:relative;overflow:hidden;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:56px 56px}
.banner::before{content:"";position:absolute;right:-10%;top:-40%;width:60%;height:180%;background:radial-gradient(closest-side,rgba(227,112,44,.22),transparent);pointer-events:none}
.banner-inner{position:relative;max-width:980px}
.banner .kicker{color:#f2b78f}
.banner h1{font-size:clamp(40px,6.4vw,88px);line-height:.96;color:#fff;margin:16px 0 0}
.banner h1 span{color:var(--accent);display:block}
.banner-lead{font-size:19px;line-height:1.55;color:var(--olive-soft);max-width:640px}
.banner .actions{margin-top:32px}

/* tab bar — сегментный переключатель */
.tabbar{position:sticky;top:var(--header-h);z-index:49;height:var(--tabbar-h);background:var(--sand);display:flex;align-items:center;box-shadow:0 1px 0 var(--line)}
.tabbar .wrap{display:flex;justify-content:center;width:100%}
.tabs{display:flex;width:100%;gap:6px;padding:5px;background:var(--sand-2);border-radius:999px;max-width:100%;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{display:inline-flex;flex:1 1 0;justify-content:center;align-items:center;gap:10px;height:46px;padding:0 22px 0 16px;border:2px solid rgba(76,91,49,.28);border-radius:999px;background:transparent;color:var(--ink-2);cursor:pointer;font:700 14.5px/1 var(--font);letter-spacing:.03em;text-transform:uppercase;white-space:nowrap;transition:background .2s,color .2s}
.tab:hover{color:var(--ink);border-color:rgba(76,91,49,.55)}
.tab-dot{width:10px;height:10px;border-radius:50%;background:var(--line);transition:background .2s}
.tab[aria-selected="true"]{background:var(--olive);color:#fff;border-color:var(--olive);box-shadow:0 6px 16px -8px rgba(44,53,29,.6)}
.tab[aria-selected="true"] .tab-dot{background:var(--accent)}
.tab:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* panel */
.products{padding:28px 0 80px}
.panel.is-in .hero-card{animation:pop .5s cubic-bezier(.2,.7,.2,1) both}
.panel.is-in .kpis{animation:pop .5s cubic-bezier(.2,.7,.2,1) .08s both}
@keyframes pop{from{opacity:0;transform:translateY(12px) scale(.995)}to{opacity:1;transform:none}}
.hero-card{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;background:var(--olive);color:var(--cream);border-radius:var(--r);padding:56px 56px;position:relative;overflow:hidden}
.hero-card>*{min-width:0}
.hero-card--text{grid-template-columns:1fr}
.panel-body--single{grid-template-columns:1fr}
.placeholder{color:var(--muted);font-style:italic}
.hero-text .panel-title,.banner h1,.section-head h2{overflow-wrap:anywhere}
.hero-card::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.12),transparent 70%);pointer-events:none}
.hero-text .panel-title{font-size:clamp(38px,5.4vw,68px);margin:12px 0 18px;color:#fff}
.hero-text .kicker{color:#f2b78f}
.lead{font-size:18px;line-height:1.55;color:var(--olive-soft);max-width:600px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-art{background:var(--art-bg);border-radius:var(--r-sm);padding:26px;position:relative;z-index:1}

.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.kpi{background:var(--cream);border-radius:var(--r-sm);padding:22px 24px;border-left:6px solid var(--accent)}
.kpi b{display:block;font-size:34px;font-weight:800;letter-spacing:-.02em;color:var(--olive-2);line-height:1.1}
.kpi span{display:block;margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.4}

.panel-body{display:grid;grid-template-columns:1.3fr 1fr;gap:14px;margin-top:40px}
.card{background:var(--cream);border-radius:var(--r);padding:32px}
.card h2{font-size:22px;margin-bottom:16px}
.about p{color:var(--ink-2);margin-bottom:14px;font-size:16px}
.about p:last-child{margin-bottom:0}
.uses{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.uses li{position:relative;padding-left:26px;color:var(--ink-2);font-size:15.5px}
.uses li::before{content:"";position:absolute;left:0;top:7px;width:14px;height:10px;border-left:3px solid var(--olive);border-bottom:3px solid var(--olive);transform:rotate(-45deg)}

.specs{margin-top:48px}
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.spec{background:var(--cream);border-radius:var(--r-sm);padding:18px 20px;display:flex;flex-direction:column;gap:6px}
.spec span{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.spec b{font-weight:500;font-size:15px;color:var(--ink);line-height:1.45}

.sizes{margin-top:48px}
.table-scroll{overflow-x:auto;border-radius:var(--r-sm);border:1px solid var(--line)}
.size-table{width:100%;border-collapse:collapse;font-size:15px;min-width:620px;background:var(--white)}
.size-table th,.size-table td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--line)}
.size-table thead th{background:var(--olive-soft);font-weight:700;font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--olive-2)}
.size-table tbody th{font-weight:700}
.size-table tbody tr:last-child td,.size-table tbody tr:last-child th{border-bottom:0}
.size-table td{color:var(--ink-2);font-variant-numeric:tabular-nums}
.note{margin-top:12px;font-size:13.5px;color:var(--muted)}

.options{margin-top:48px}
.opt-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.opt{display:flex;gap:16px;background:var(--cream);border-radius:var(--r-sm);padding:20px 22px}
.opt-mark{flex:none;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800;font-size:20px;line-height:1}
.opt h3{font-size:16px;margin-bottom:6px}
.opt p{font-size:14.5px;color:var(--ink-2)}

/* metrics */
.metrics{background:var(--olive-2);color:var(--cream)}
.metrics-grid{display:flex;justify-content:space-between;gap:24px;padding:36px 24px}
.metric:nth-child(2){text-align:center}
.metric:last-child{text-align:right}
.metric b{display:block;font-size:40px;font-weight:800;letter-spacing:-.02em;line-height:1;color:#fff}
.metric span{display:block;margin-top:8px;font-size:14px;color:var(--olive-soft)}

/* advantages */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.adv{background:var(--cream);border-radius:var(--r);padding:28px 26px 30px;transition:transform .2s}
.adv:hover{transform:translateY(-3px)}
.badge{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--olive);color:#fff;font-weight:800;font-size:15px}
.badge-lg{width:44px;height:44px;font-size:18px;flex:none}
.adv h3{margin:18px 0 10px;font-size:19px}
.adv p{color:var(--ink-2);font-size:15px}

/* process */
.process{background:var(--cream)}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{display:flex;gap:16px;align-items:flex-start;background:var(--white);border-radius:var(--r);padding:24px}
.step h3{margin-bottom:8px}
.step p{color:var(--ink-2);font-size:15px}

/* docs */
.docs-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.docs .section-head{margin-bottom:0}
.docs-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.doc{background:var(--cream);border-radius:var(--r-sm);padding:20px 22px;border-top:4px solid var(--olive)}
.doc h3{font-size:16px;margin-bottom:8px;color:var(--olive-2)}
.doc p{font-size:14.5px;color:var(--ink-2)}

/* protocols */
.protocols{grid-column:1/-1;margin-top:40px;padding-top:36px;border-top:1px solid var(--line)}
.protocols h3{font-size:20px;margin-bottom:6px}
.protocols-note{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.proto-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.proto-grid .photo{aspect-ratio:3/4}

/* gallery */
.gallery{background:var(--cream)}
.gtabs{display:inline-flex;gap:4px;padding:5px;background:var(--sand-2);border-radius:999px;margin-bottom:24px;max-width:100%;overflow-x:auto}
.gtab{height:44px;padding:0 20px;border:2px solid rgba(76,91,49,.28);border-radius:999px;background:transparent;color:var(--ink-2);cursor:pointer;font:700 14px/1 var(--font);letter-spacing:.03em;text-transform:uppercase;white-space:nowrap;transition:background .2s,color .2s}
.gtab:hover{color:var(--ink);border-color:rgba(76,91,49,.55)}
.gtab[aria-selected="true"]{background:var(--olive);color:#fff;border-color:var(--olive)}
.gtab:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery .photo-grid{grid-template-columns:repeat(4,1fr);gap:10px}
.gallery .photo{border-radius:8px}
.photo{position:relative;display:block;aspect-ratio:4/3;border-radius:var(--r-sm);overflow:hidden;background:var(--sand-2);color:inherit}
.photo img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.photo:hover img{transform:scale(1.03)}
.photo-cap{position:absolute;left:0;right:0;bottom:0;padding:22px 12px 10px;font-size:12px;line-height:1.3;font-weight:600;color:#fff;background:linear-gradient(transparent,rgba(31,36,24,.85))}
.photo:not(.is-empty) .photo-cap{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.photo.is-empty{border:2px dashed var(--line);background:var(--white);display:flex;align-items:center;justify-content:center;text-align:center;padding:18px;cursor:default}
.photo.is-empty .photo-cap{position:static;padding:0;background:none;color:var(--muted);font-weight:500;font-size:14px;line-height:1.4}
.photo.is-empty::before{content:"+";position:absolute;top:12px;left:12px;width:32px;height:32px;border-radius:50%;background:var(--olive-soft);display:grid;place-items:center;color:var(--olive-2);font-weight:800;font-size:22px;line-height:1}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(31,36,24,.94);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:min(1200px,100%);max-height:calc(100vh - 140px);border-radius:8px;object-fit:contain}
.lightbox-cap{color:var(--cream);margin-top:14px;font-size:15px;text-align:center}
.lightbox button{position:absolute;width:48px;height:48px;border-radius:50%;border:2px solid rgba(255,255,255,.4);background:none;color:#fff;font-size:24px;cursor:pointer;display:grid;place-items:center}
.lightbox button:hover{background:rgba(255,255,255,.12)}
.lightbox-close{top:20px;right:20px}
.lightbox-prev{left:20px;top:50%;transform:translateY(-50%)}
.lightbox-next{right:20px;top:50%;transform:translateY(-50%)}

/* contact */
.contact{background:var(--olive-3);color:var(--cream)}
.contact-inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.contact-text h2{margin:0 0 16px;color:#fff}
.contact-text p{color:var(--olive-soft);font-size:17px}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;align-self:center}
.contact-multi{display:grid;gap:4px}
.contact-list li{display:grid;grid-template-columns:150px 1fr;gap:12px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.14)}
.contact-list span{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--olive-soft);padding-top:3px;font-weight:600}
.contact-list a,.contact-list b{font-weight:600;color:#fff}
.contact-list a:hover{color:var(--accent)}
.lead-form{background:var(--cream);color:var(--ink);border-radius:var(--r);padding:32px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field-wide{grid-column:1/-1}
.field label{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.field input,.field select,.field textarea{border:2px solid var(--line);border-radius:12px;background:var(--white);color:var(--ink);font:inherit;padding:12px 14px;outline:none;transition:border-color .2s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--olive)}
.field textarea{resize:vertical;min-height:100px}
.form-foot{flex-direction:row;align-items:center;gap:18px;flex-wrap:wrap}
.consent{font-size:12.5px;color:var(--muted);max-width:340px}
.form-sent{grid-column:1/-1;padding:12px 16px;border-radius:12px;background:var(--olive-soft);color:var(--olive-2);font-weight:600}

/* footer */
.site-footer{background:var(--olive-3);color:var(--olive-soft);padding:22px 0;border-top:1px solid rgba(255,255,255,.1)}
.footer-row{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:13px}
.footer-note{max-width:520px}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease var(--d,0s),transform .5s cubic-bezier(.2,.7,.2,1) var(--d,0s)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.panel.is-in *{animation:none!important}html{scroll-behavior:auto}}

/* responsive */
@media (max-width:1320px){.header-cta{display:none}}
@media (max-width:1100px){
  .nav{display:none}
  .nav-toggle{display:flex}
  .header-side{margin-left:0}
  .nav-toggle{margin-left:auto}
  body.nav-open .nav{display:flex;position:fixed;top:var(--header-h);left:0;right:0;flex-direction:column;gap:0;background:var(--olive-3);padding:8px 24px 16px;z-index:60}
  body.nav-open .nav a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:16px;color:#fff}
  .hero-card{grid-template-columns:1fr;padding:40px 32px}
  .hero-art{max-width:520px}
  .panel-body{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr 1fr}
  .docs-inner,.contact-inner{grid-template-columns:1fr;gap:36px}
  .proto-grid{grid-template-columns:repeat(2,1fr)}
  .photo-grid{grid-template-columns:repeat(2,1fr)}
  .gallery .photo-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:720px){
  :root{--header-h:64px;--tabbar-h:0px;--sticky-h:var(--header-h)}
  .brand-text small{display:none}
  .brand-text b{font-size:15px;white-space:nowrap}
  .section{padding:60px 0}
  .tabbar{position:static;height:auto;padding:12px 0}
  .tabbar .wrap{justify-content:stretch}
  .tabs{display:grid;grid-template-columns:1fr;gap:6px;width:100%;border-radius:22px;overflow:visible}
  .tab{height:auto;padding:12px 18px;justify-content:center;font-size:13.5px}
  .hero-card{padding:28px 22px;border-radius:14px}
  .hero-text .panel-title{font-size:clamp(22px,6.8vw,38px)}
  .hero-art{padding:16px}
  .banner{padding:56px 0 48px}
  .banner h1{font-size:clamp(28px,8.6vw,40px)}
  .kpis,.spec-grid,.opt-grid,.adv-grid,.steps,.docs-grid,.photo-grid{grid-template-columns:1fr}
  .gallery .photo-grid{grid-template-columns:repeat(2,1fr);gap:8px}
  .gtabs{display:grid;grid-template-columns:1fr;gap:6px;width:100%;border-radius:22px;overflow:visible}
  .gtab{height:auto;padding:13px 20px;white-space:normal;line-height:1.25}
  .lightbox button{width:40px;height:40px}
  .lightbox-prev{left:8px}.lightbox-next{right:8px}
  .card{padding:22px}
  .metrics-grid{flex-direction:column;gap:20px;padding:28px 24px}
  .metric:nth-child(2),.metric:last-child{text-align:left}
  .lead-form{grid-template-columns:1fr;padding:22px}
  .contact-list li{grid-template-columns:1fr;gap:4px}
}