/* DESIGN-OMEGATETRA-2026-10-08: graphite / olive, native site components. */
:root{
  --bg:#101513;--bg-2:#171f1b;--bg-3:#202a24;--panel:#171f1b;
  --text:#f0f3ed;--muted:#b8c2b8;--accent:#c1d888;--accent-2:#d6e7ad;
  --accent-soft:#263321;--line:#344238;--line-2:#77877a;
  --tetra-photo:#ffffff;--tetra-focus:#d6e7ad;
}
/* Preserve the separately approved flag plate's inherited palette. */
.flag-plate{--accent:#9bb339;--accent-2:#b5cc4d;--green:#22c55e;--line:#1c2620;--line-2:#2a3830;--muted:#8a9280}
html,body{background:var(--bg);color:var(--text)}
.container{max-width:1280px;padding-inline:32px}
main>section{padding-block:76px}
main :is(h1,h2,h3){text-wrap:balance;overflow-wrap:break-word}
.site-header{background:var(--bg);position:sticky;transform:none!important;transition:none;border-bottom:1px solid var(--line)}
.site-header__inner{min-height:76px;gap:8px 24px;justify-content:space-between;padding-block:12px;flex-wrap:wrap!important}
.site-header__logo{font-size:1.05rem;letter-spacing:.03em;margin-right:auto;flex-shrink:0}
.site-header__logo .mark{background:var(--accent);box-shadow:none;border-radius:8px}
.site-header__right{gap:8px;flex-wrap:wrap}
.site-header__nav{order:3;flex:1 0 100%;gap:4px 24px;flex-wrap:wrap;justify-content:flex-start}
.site-header__nav a{display:inline-flex;align-items:center;min-height:44px;color:var(--muted);font-size:.9rem}
.site-header__nav a::after{bottom:4px}
.site-header__cta{min-height:44px;background:var(--accent);color:#101513;box-shadow:none;text-transform:none;letter-spacing:0;font-size:.9rem;padding:10px 16px}
.site-header__right .site-header__cta~.site-header__cta{background:transparent;border:1px solid var(--line-2);color:var(--text)}
.lang-switch{background:var(--bg-2);box-shadow:none}
.lang-switch__btn{min-height:44px;min-width:44px;padding:8px 10px;color:var(--muted)}
.lang-switch__pill{background:var(--accent);box-shadow:none;transition:transform .2s ease}
.tetra-mobile-nav{display:none}
.hero{padding-top:58px;padding-bottom:52px;min-height:0}
.hero::before,.hero::after,.product__media::before,.product__media::after{display:none}
.hero__title{font-size:clamp(2rem,4.3vw,3.65rem);font-weight:700;line-height:1.09;letter-spacing:-.035em;max-width:940px;margin-block:16px 28px}
.hero__title .sub{font-size:1.05rem;line-height:1.7;font-weight:400;letter-spacing:0;color:var(--muted);max-width:780px;margin-top:24px}
.hero__descr{color:var(--muted);font-size:1rem;line-height:1.7}
.hero__tag,.hero-card__tag,.product__tag,.eyebrow{font-family:inherit;letter-spacing:.04em;font-weight:600;border-color:var(--line);border-radius:6px}
.hero__tag .dot,.product__price-row .stock .dot{animation:none;box-shadow:none}
.hero__cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:36px}
.hero-card{background:var(--panel);border:1px solid var(--line);padding:26px;border-radius:16px;transition:border-color .2s}
.hero-card::before{display:none}
.hero-card:hover{border-color:var(--line-2);box-shadow:none}
.hero-card__title{font-size:1.75rem;font-weight:700;letter-spacing:-.025em}
.hero-card__media{height:240px;background:var(--tetra-photo);border:0;border-radius:10px;padding:18px;margin-block:20px}
.hero-card__media img{max-width:100%;max-height:216px;object-fit:contain;filter:none}
.hero-card__sub,.hero-card__feat{color:var(--muted);font-size:.95rem;line-height:1.6}
.hero-card__feat li{padding-block:8px;border-bottom-style:solid}
.hero-card__price .value{font-size:2rem;font-weight:650}
.hero-card__price .label{font-size:.9rem;color:var(--muted)}
.hero-card__price{flex-wrap:wrap}
.btn,.pd-btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;white-space:normal;text-align:center;text-transform:none;letter-spacing:0;font-weight:650;line-height:1.35;border-radius:8px;transition:background-color .2s,border-color .2s,color .2s}
.btn--primary,.pd-btn--p{background:var(--accent);color:#101513;box-shadow:none}
.btn--primary:hover,.pd-btn--p:hover{background:var(--accent-2);box-shadow:none}
.btn--ghost,.pd-btn--g{color:var(--text);border:1px solid var(--line-2)}
.hero-card__actions,.product__actions{gap:12px}
.dealer-ribbon{background:var(--bg-2);border-color:var(--line);box-shadow:none;padding:24px;border-radius:12px}
.dealer-ribbon__text{min-width:0;color:var(--muted)}
.section-title{font-size:clamp(1.7rem,3vw,2.6rem);font-weight:650;text-transform:none;letter-spacing:-.025em;text-align:left;line-height:1.2;margin-bottom:18px}
.section-sub{text-align:left;margin:0 0 36px;color:var(--muted);font-size:1.05rem;line-height:1.7}
.fishes,.product,.product--alt,.overview,.industries,.gallery,.docs,.faq,.partners,.specs{background:var(--bg)}
.fishes,.specs,.docs{background:var(--bg-2);border-block:1px solid var(--line)}
.fish-card{background:transparent;box-shadow:none;border-color:var(--line);border-radius:12px;padding:26px;transition:border-color .2s}
.fish-card:hover{box-shadow:none;border-color:var(--line-2)}
.fish-card__text{color:var(--muted);font-size:1rem;line-height:1.7}
.fish-card__num{font-size:2rem;color:var(--line-2)}
.fish-card__icon{background:var(--accent-soft);border-color:var(--line)}
.product__wrap,.product__wrap--rev{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px;align-items:start}
.product__media{background:var(--tetra-photo);border:0;border-radius:16px;padding:24px;min-height:360px}
.product__media img{filter:none;max-height:490px;object-fit:contain}
.product__name{font-weight:650;letter-spacing:-.025em;line-height:1.15}
.product__descr,.product__feats li,.product__kit{color:var(--muted);line-height:1.7;font-size:1rem}
.product__sku{font-size:.9rem;letter-spacing:.02em}
.product__kit{background:var(--bg-2);border-color:var(--line);border-left-color:var(--accent)}
.product__price-row{background:var(--bg-2);border-color:var(--line);box-shadow:none}
.product__price-row .label{color:var(--muted)}
.specs__tabs{justify-content:flex-start}
.specs__tab{min-height:48px;box-shadow:none;font-family:inherit;font-size:1rem;text-transform:none;letter-spacing:0;background:var(--bg);border-color:var(--line-2);transition:background-color .2s,color .2s}
.specs__tab.is-active{box-shadow:none;color:#101513}
.specs__wrap{max-width:none;background:var(--bg);border-color:var(--line)}
.specs__table{table-layout:fixed;overflow-wrap:anywhere}
.specs__table th,.specs__table td{font-size:1rem;padding:18px 22px;border-color:var(--line);line-height:1.6}
.specs__table th{background:var(--bg);color:var(--muted)}
.specs__table thead th{background:var(--panel);text-transform:none;letter-spacing:0;font-family:inherit}
.doc-item{background:var(--bg);border-color:var(--line);box-shadow:none;transition:border-color .2s}
.doc-item:hover{background:var(--bg);border-color:var(--line-2)}
.doc-item__meta{color:var(--muted);font-family:inherit;font-size:.9rem;letter-spacing:0}
.doc-item__title{font-size:1rem;line-height:1.5}
.faq__list{max-width:none}
.faq__item{background:var(--bg-2);border-color:var(--line);border-radius:10px}
.faq__q{min-height:60px;line-height:1.55}
.faq__a{color:var(--muted);line-height:1.75;font-size:1rem;transition:none}
.faq__item.is-open .faq__a{max-height:none}
.partners__grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--panel)}
.partner{min-width:0;min-height:150px;padding:22px 12px;gap:12px;border:0;border-radius:0;background:transparent;box-shadow:inset -1px -1px var(--line);transition:background-color .2s,color .2s}
.partner::before{display:none}
.partner:hover{background:var(--bg-3);border:0;box-shadow:inset -1px -1px var(--line)}
.tetra-network-mark{display:grid;place-items:center;width:44px;height:44px;flex:0 0 44px;color:var(--accent);border:1px solid var(--line-2);border-radius:9px;background:var(--bg)}
.tetra-network-mark svg{display:block}
.partner__title{font-family:inherit;font-size:.85rem!important;font-weight:500;line-height:1.5;text-transform:none;letter-spacing:0;color:var(--muted);overflow-wrap:anywhere}
.partner:hover .partner__title{color:var(--text)}
.site-footer{background:#0b100d;padding-top:52px}
.site-footer h4{font-family:inherit;text-transform:none;font-size:1rem;letter-spacing:0}
.site-footer li,.site-footer__brand p,.delivery-text{color:var(--muted);font-size:.95rem;line-height:1.7}
.site-footer a{display:inline-block;min-height:28px}
.site-footer__bottom{color:var(--muted);font-size:.9rem;line-height:1.7}
.site-footer__grid{gap:32px;grid-template-columns:1.2fr 1.1fr .9fr 1fr}
.pd{max-width:1200px;padding:40px 32px 72px}
.pd-grid{grid-template-columns:minmax(240px,.85fr) minmax(0,1.15fr);gap:40px}
.pd h1{font-size:clamp(1.7rem,3vw,2.6rem);font-weight:650;line-height:1.25;letter-spacing:-.025em;margin-block:12px 22px}
.pd-bc,.pd-sku,.pd-note,.pd-foot{font-size:.9rem;line-height:1.7;color:var(--muted)}
.pd-bc{overflow-wrap:anywhere}
.pd-desc{opacity:1;font-size:1rem;line-height:1.8;margin-block:18px}
.pd-desc ul,.pd-more ul,.pd-more ol{padding-left:1.4em;line-height:1.8}
.pd-desc li,.pd-more li{margin-block:8px}
.pd-more{padding-block:24px}
.pd-more h2,.pd article h2{font-size:1.5rem;font-weight:650;line-height:1.3;margin:32px 0 16px}
.pd-more h3,.pd article h3{font-size:1.15rem;line-height:1.55;margin:24px 0 12px}
.pd-more p,.pd article p{font-size:1rem;line-height:1.8;margin-block:16px}
.pd-media{border:0;padding:24px;min-height:360px}
.pd-media img{max-height:440px}
.pd-rc{padding:18px;border-radius:12px}
.pd-rc .nm{font-size:1rem;line-height:1.55}
.pd-rc .pr{font-size:.95rem;margin-top:12px}
.pd-rc img{height:180px}
.pd-back{min-height:44px;display:inline-flex;align-items:center;margin-top:24px}
.tetra-catalog{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px!important;max-width:none!important;margin-block:32px}
.tetra-catalog li{min-width:0;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px}
.tetra-catalog a{display:block;color:var(--text);font-size:1.25rem;line-height:1.5;font-weight:600;overflow-wrap:break-word}
.tetra-catalog img{width:100%;height:220px;object-fit:contain;background:#fff;border-radius:10px;padding:16px;margin-bottom:20px}
.tetra-catalog li>span{display:block;color:var(--muted);font-size:.95rem;margin-top:14px}
.tetra-article{max-width:820px}
.reveal{opacity:1;transform:none;transition:none}
main [id]{scroll-margin-top:150px}
main :is(a,button):focus-visible,.site-header :is(a,button,summary):focus-visible,.site-footer a:focus-visible{outline:3px solid var(--tetra-focus)!important;outline-offset:4px!important}
@media(min-width:1100px){
  main .container,.site-footer>.container{width:calc(100% - 200px);margin-left:0;margin-right:auto}
  .pd{width:calc(100% - 200px);margin-left:0;margin-right:auto}
}
@media(min-width:1500px){main .container,.site-footer>.container,.pd{margin-inline:auto}}
@media(max-width:1000px){
  .partners__grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .site-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .product__feats{grid-template-columns:1fr}
}
@media(max-width:900px){
  .site-header:has(.tetra-mobile-nav[open]){z-index:10000}
  .partners__grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .site-header__nav{display:none}
  .site-header__inner{gap:8px 12px}
  .site-header__cta{display:none}
  .site-header__right .site-header__cta:first-of-type{display:inline-flex}
  .tetra-mobile-nav{display:block;flex:1 0 100%;order:3;border-top:1px solid var(--line);margin-top:4px}
  .tetra-mobile-nav summary{min-height:44px;display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--text);cursor:pointer;list-style:none}
  .tetra-mobile-nav summary::-webkit-details-marker{display:none}
  .tetra-mobile-nav summary::after{content:'+';margin-left:auto;color:var(--accent);font-size:1.4rem}
  .tetra-mobile-nav[open] summary::after{content:'−'}
  .tetra-mobile-nav nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding-block:8px 16px}
  .tetra-mobile-nav nav a{display:flex;align-items:center;min-height:44px;font-size:.95rem;padding:10px 12px;border:1px solid var(--line);border-radius:6px;color:var(--text);line-height:1.4}
  .hero{padding-top:32px}
  .product__wrap,.product__wrap--rev,.pd-grid{grid-template-columns:1fr;gap:28px}
  .product__media{min-height:280px}
  .pd-rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:640px){
  .partners__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .partner{padding:20px 12px;min-height:156px}
  .container{padding-inline:20px}
  .pd{padding:28px 20px 56px}
  .site-header__logo{font-size:.9rem;gap:8px;letter-spacing:0}
  .site-header__logo .mark{width:32px;height:32px}
  .site-header__right .site-header__cta:first-of-type{display:none}
  main>section{padding-block:48px}
  .hero{padding-top:28px}
  .hero__title{font-size:2rem;letter-spacing:-.025em;margin-bottom:24px}
  .hero__title .sub{font-size:1rem;margin-top:20px}
  .hero__cards,.tetra-catalog{grid-template-columns:1fr;gap:20px;margin-top:24px}
  .hero-card{padding:20px}
  .hero-card__title{font-size:1.6rem}
  .hero-card__media{height:232px}
  .hero-card__actions .btn{flex:1 1 100%}
  .dealer-ribbon{gap:18px;padding:20px}
  .specs__table th,.specs__table td{padding:12px;font-size:.9rem}
  .specs__table th{width:42%}
  .doc-item{padding:16px;gap:12px}
  .faq__q{padding:18px}
  .faq__a{padding-inline:18px}
  .faq__item.is-open .faq__a{padding:0 18px 18px}
  .site-footer__grid{grid-template-columns:1fr;gap:28px}
  .pd-media{min-height:280px;padding:20px}
  .pd-cta .pd-btn{flex:1 1 100%}
  .pd-rel-grid{grid-template-columns:1fr}
  .pd-more h3:has(.zz-thumb){gap:12px!important;align-items:flex-start!important}
  .pd-more .zz-thumb{width:64px!important;height:64px!important}
  .tetra-catalog li{padding:20px}
}
@media(max-width:380px){
  .partners__grid{grid-template-columns:1fr}
  .partner{min-height:88px;flex-direction:row;justify-content:flex-start;text-align:left;padding:18px;gap:16px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero__tag .dot,.product__price-row .stock .dot,.product__media::before{animation:none}
  .btn,.pd-btn,.fish-card,.hero-card,.partner,.lang-switch__pill,.faq__q::after,.site-header__nav a::after{transition:none}
}