/* АМПЕРСАНТ — ППУ. Современный «промышленно-чистый» дизайн, синяя палитра. Быстрый CSS без фреймворков. */
:root{
  --blue:#1F6FD6;
  --blue-600:#175CBC;
  --blue-700:#0E4C99;
  --navy:#0B2E5E;
  --teal:#17B0C4;
  --teal-soft:#4FD0DF;
  --orange:#F08A24;
  --orange-soft:#FFA94D;
  --sky:#6FB6FF;

  --ink:#182338;
  --muted:#6b7488;
  --line:#e8eef7;
  --line-2:#dbe4f1;

  --bg:#ffffff;
  --cream:#F7FAFF;
  --lilac:#EFF5FE;
  --card:#ffffff;

  --ok:#12b886;
  --radius:18px;
  --radius-sm:12px;
  --shadow-sm:0 2px 8px rgba(14,76,153,.06);
  --shadow:0 10px 30px rgba(14,76,153,.10);
  --shadow-lg:0 20px 50px rgba(14,76,153,.16);
  --wrap:1200px;
  --font:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--cream);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-600);text-decoration:none}
a:hover{color:var(--blue-700)}
h1,h2,h3{line-height:1.15;color:var(--ink);margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(1.9rem,4vw,3rem);font-weight:800}
h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800}
h3{font-weight:700}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.narrow{max-width:860px}
.center{text-align:center;margin-top:28px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.lead{font-size:1.18rem;color:#46506a}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:100;border-radius:8px}

/* ---------- Buttons ---------- */
.btn{
  --btn-grad:linear-gradient(135deg,var(--blue) 0%,var(--blue-700) 100%);
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  background:var(--btn-grad);color:#fff;border:0;padding:13px 26px;border-radius:12px;
  font-family:inherit;font-weight:700;font-size:1rem;cursor:pointer;overflow:hidden;
  box-shadow:0 8px 20px rgba(31,111,214,.24);transition:transform .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s,filter .18s;
  text-decoration:none;white-space:nowrap}
.btn::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.4),transparent);transform:skewX(-18deg);transition:left .6s}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(31,111,214,.32);color:#fff}
.btn:hover::after{left:130%}
.btn:active{transform:translateY(0)}
.btn-lg{padding:16px 32px;font-size:1.06rem}
.btn-sm{padding:9px 18px;font-size:.9rem}
.btn-block{display:flex;width:100%}
/* ghost */
.btn-ghost{background:#fff;color:var(--blue-600);box-shadow:inset 0 0 0 1.6px var(--line-2)}
.btn-ghost::after{display:none}
.btn-ghost:hover{background:var(--lilac);box-shadow:inset 0 0 0 1.6px var(--blue);color:var(--blue-700);transform:translateY(-2px)}
/* orange (акцентная) */
.btn-orange{--btn-grad:linear-gradient(135deg,var(--orange-soft) 0%,var(--orange) 100%);color:#4a2600;box-shadow:0 8px 20px rgba(240,138,36,.3)}
.btn-orange:hover{box-shadow:0 14px 30px rgba(240,138,36,.4);color:#4a2600}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;height:74px}
.logo img{height:44px;width:auto}
.main-nav{display:flex;gap:22px;margin-left:10px}
.main-nav a{color:var(--ink);font-weight:600;position:relative;padding:4px 0;font-size:.97rem}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--blue),var(--orange));transition:width .2s}
.main-nav a:hover::after{width:100%}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:16px}
.phone{font-weight:800;color:var(--ink);white-space:nowrap}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--blue-600)}
.header-search{padding:0 22px 14px;position:relative}
#site-search{width:100%;padding:13px 18px;border:1.6px solid var(--line-2);border-radius:12px;font-size:1rem;font-family:inherit;background:#fff;transition:.15s}
#site-search:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(31,111,214,.12)}
.search-results{position:absolute;left:22px;right:22px;background:#fff;border:1px solid var(--line-2);border-radius:12px;box-shadow:var(--shadow);max-height:60vh;overflow:auto;z-index:50}
.search-results a{display:block;padding:12px 16px;border-bottom:1px solid var(--line);color:var(--ink)}
.search-results a:hover{background:var(--lilac)}
.search-results .sr-cat{font-size:.78rem;color:var(--muted)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:66px 0 74px;
  background:
    radial-gradient(60% 90% at 85% 10%,rgba(79,208,223,.28),transparent 60%),
    radial-gradient(55% 85% at 10% 90%,rgba(255,169,77,.22),transparent 55%),
    radial-gradient(80% 90% at 50% 0%,rgba(31,111,214,.16),transparent 60%),
    linear-gradient(180deg,#EAF3FF 0%,#F7FAFF 100%)}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--blue-700);padding:7px 16px;border-radius:999px;font-size:.86rem;font-weight:700;margin-bottom:18px;box-shadow:var(--shadow-sm)}
.hero-eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange)}
.hero h1{max-width:16ch;background:linear-gradient(120deg,#0B2E5E 0%,#175CBC 55%,#17B0C4 120%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-text p{color:#46506a;font-size:1.18rem;max-width:58ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0}
.hero-usp{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.hero-usp li{background:rgba(255,255,255,.75);border:1px solid var(--line-2);padding:8px 15px;border-radius:999px;font-weight:600;font-size:.92rem;color:#33405a}

/* ---------- Sections ---------- */
.section{padding:60px 0}
.section-alt{background:linear-gradient(180deg,var(--lilac),#fff)}
.section-title{text-align:center;margin-bottom:14px}
.section .section-sub{text-align:center;color:var(--muted);max-width:60ch;margin:0 auto 36px}

/* ---------- Category cards ---------- */
.cat-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s;display:block;box-shadow:var(--shadow-sm)}
.cat-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.cat-card-media{aspect-ratio:13/10;background:linear-gradient(140deg,#E7F1FF,#E4F8FB);display:flex;align-items:center;justify-content:center;padding:16px}
.cat-card-media img{max-height:100%;width:auto;object-fit:contain}
.cat-card-body{padding:16px 18px}
.cat-card-body h2,.cat-card-body h3{font-size:1.06rem;margin:0 0 5px}
.cat-card-count{color:var(--blue-600);font-size:.85rem;font-weight:700;background:var(--lilac);padding:3px 10px;border-radius:999px;display:inline-block}

/* ---------- Advantages ---------- */
.advantages{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px}
.adv{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);transition:.2s}
.adv:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.adv-ic{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.7rem;margin-bottom:14px;background:linear-gradient(140deg,#E7F1FF,#E2F7FA)}
.adv h3{font-size:1.1rem}
.adv p{color:var(--muted);margin:0}

/* ---------- Product grid + cards ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;overflow:hidden;transition:.2s;box-shadow:var(--shadow-sm)}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.card-media{aspect-ratio:1;background:linear-gradient(140deg,#E9F2FF,#E4F8FB);display:flex;align-items:center;justify-content:center;padding:18px}
.card-media img{max-height:100%;width:auto;object-fit:contain}
.card-body{padding:16px;display:flex;flex-direction:column;gap:9px;flex:1}
.card-title{font-weight:700;color:var(--ink);font-size:.97rem;line-height:1.35;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-title:hover{color:var(--blue-600)}
.card-specs{color:var(--muted);font-size:.85rem}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;gap:8px}
.card-price{font-weight:700;font-size:.98rem;color:var(--blue-700)}
.card-price.muted{font-weight:700;color:var(--muted)}
.stock{font-size:.76rem;font-weight:600;padding:4px 10px;border-radius:999px;white-space:nowrap}
.stock.in{background:#e3faf1;color:var(--ok)}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{padding:18px 0}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:9px;padding:0;margin:0;font-size:.85rem;color:var(--muted)}
.breadcrumbs li:not(:last-child)::after{content:"›";margin-left:9px;color:#bcc7d8}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--blue-600)}

/* ---------- Category page ---------- */
.cat-head{margin:8px 0 26px}
.cat-intro{max-width:80ch;color:#46506a}
.cat-count{color:var(--muted)}
.cat-layout{display:grid;grid-template-columns:264px 1fr;gap:30px;align-items:start}
.filters{position:sticky;top:160px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:16px;box-shadow:var(--shadow-sm)}
.filter-block{display:flex;flex-direction:column;gap:7px}
.filter-block label{font-size:.85rem;font-weight:700;color:#33405a}
.filter-block .check{flex-direction:row;align-items:center;gap:8px;font-weight:500;cursor:pointer}
.filters input,.filters select{padding:11px 12px;border:1.6px solid var(--line-2);border-radius:10px;font-size:.92rem;width:100%;font-family:inherit;background:#fff}
.filters input:focus,.filters select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(31,111,214,.1)}
.cat-toolbar{color:var(--muted);margin-bottom:16px}
.cat-toolbar #result-count{color:var(--ink);font-weight:800}

/* ---------- Product page ---------- */
.pp-top{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:8px 0 30px}
.pp-gallery{background:linear-gradient(140deg,#E9F2FF,#E4F8FB);border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;padding:32px}
.pp-gallery img{max-height:460px;width:auto;object-fit:contain}
.pp-info h1{font-size:clamp(1.4rem,2.8vw,2rem)}
.pp-badges{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 16px}
.badge{background:var(--lilac);color:var(--blue-600);font-weight:700;font-size:.82rem;padding:5px 12px;border-radius:999px}
.pp-price{font-size:1.5rem;font-weight:800;color:var(--ink);margin:8px 0;letter-spacing:-.02em}
.pp-price.muted{color:var(--blue-700)}
.pp-pricenote{margin:2px 0 12px}
.pp-stock{margin-bottom:18px;font-weight:700}
.pp-stock.in{color:var(--ok)}
.pp-quick{width:100%;border-collapse:collapse;margin:8px 0 22px}
.pp-quick th,.pp-quick td{text-align:left;padding:11px 14px;font-size:.94rem;vertical-align:top}
.pp-quick tr{border-bottom:1px solid var(--line)}
.pp-quick th{color:var(--muted);font-weight:500;width:45%}
.pp-actions{display:flex;gap:12px;flex-wrap:wrap;margin:8px 0 14px}
.pp-note{color:var(--muted);font-size:.9rem}
.pp-desc{max-width:100%;overflow-x:auto}
.pp-desc h2{margin-top:28px;font-size:1.4rem}
.pp-desc h3{margin-top:24px;font-size:1.18rem;padding-left:14px;border-left:4px solid;border-image:linear-gradient(var(--blue),var(--teal)) 1}
.pp-desc table,.article table{border-collapse:collapse;width:100%;margin:14px 0;font-size:.92rem;border-radius:10px;overflow:hidden}
.pp-desc td,.pp-desc th,.article td,.article th{border:1px solid var(--line-2);padding:9px 12px;text-align:left}
.pp-desc table.colored_table tr:first-child td,.pp-desc table.colored_table th,
.article table.colored_table tr:first-child td,.article table.colored_table th{background:var(--lilac);font-weight:700;color:var(--blue-700)}
.pp-cta-band{background:linear-gradient(135deg,#E7F1FF,#E2F7FA);border:1px solid var(--line-2);border-radius:var(--radius);padding:26px 28px;display:flex;align-items:center;justify-content:space-between;gap:22px;margin:34px 0;flex-wrap:wrap}

/* ---------- Articles ---------- */
.art-list{display:flex;flex-direction:column;gap:16px;margin-top:18px}
.art-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow-sm);transition:.2s;display:block}
.art-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.art-card h2{font-size:1.2rem;margin:0 0 6px}
.art-card p{color:var(--muted);margin:0 0 8px}
.art-more{color:var(--blue-600);font-weight:700;font-size:.9rem}
.article-summary{background:var(--lilac);border-left:4px solid var(--blue);border-radius:10px;padding:14px 18px;font-weight:600;color:#33405a;margin:14px 0 20px}
.howto-steps{padding-left:20px;display:flex;flex-direction:column;gap:10px}
.howto-steps li{padding-left:4px}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:4px 20px;box-shadow:var(--shadow-sm)}
.faq-item summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";float:right;color:var(--blue);font-weight:700;font-size:1.3rem;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-a{padding:0 0 18px;color:#46506a}

/* ---------- Finder band ---------- */
.finder-band{padding:64px 0}
.finder-inner{background:
  radial-gradient(70% 140% at 85% 15%,rgba(79,208,223,.5),transparent 55%),
  radial-gradient(70% 140% at 12% 90%,rgba(255,169,77,.45),transparent 55%),
  linear-gradient(135deg,#175CBC,#0E4C99);
  border-radius:24px;padding:48px 40px;text-align:center;color:#fff;box-shadow:var(--shadow-lg)}
.finder-inner h2{color:#fff;font-size:clamp(1.6rem,3vw,2.3rem)}
.finder-inner p{color:#dfebff;max-width:56ch;margin:0 auto 26px;font-size:1.1rem}
.btn-finder{background:#fff;color:var(--blue-700);font-size:1.12rem;font-weight:800;padding:18px 40px;box-shadow:0 14px 40px rgba(0,0,0,.2)}
.btn-finder:hover{background:#eef5ff;color:var(--blue-700);transform:translateY(-3px) scale(1.02)}

/* ---------- Contacts / forms ---------- */
.contacts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;margin:18px 0 30px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow-sm)}
.contact-card h2{font-size:1rem;color:var(--muted);margin:0 0 6px}
.lead-form{max-width:560px;display:flex;flex-direction:column;gap:14px;margin:14px 0}
.lead-form input,.lead-form textarea{padding:14px 16px;border:1.6px solid var(--line-2);border-radius:12px;font-size:1rem;font-family:inherit;width:100%;background:#fff}
.lead-form input:focus,.lead-form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(31,111,214,.1)}
.lead-form textarea{min-height:120px;resize:vertical}
.form-note{padding:14px;border-radius:10px;background:#e3faf1;color:var(--ok)}

/* ---------- Footer ---------- */
.site-footer{background:#0B2E5E;color:#a9bad6;margin-top:48px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:30px;padding:52px 22px}
.footer-logo{height:42px;width:auto;margin-bottom:14px}
.footer-about{color:#8ea3c6;font-size:.92rem;max-width:42ch}
.footer-wh{color:#7d92b6;font-size:.85rem}
.site-footer h3{color:#fff;font-size:1rem;margin:0 0 14px}
.site-footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.site-footer a{color:#a9bad6}
.site-footer a:hover{color:var(--teal-soft)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;padding:20px 22px;border-top:1px solid #163c6e;font-size:.82rem;color:#7d92b6;flex-wrap:wrap}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .cat-layout{grid-template-columns:1fr}
  .filters{position:static;flex-direction:row;flex-wrap:wrap}
  .filter-block{flex:1;min-width:150px}
  .pp-top{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  .header-inner{height:64px;gap:12px}
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);flex-direction:column;padding:14px 22px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .nav-toggle{display:block;order:3;margin-left:auto}
  .header-cta .btn{display:none}
  .logo img{height:38px}
  .finder-inner{padding:36px 22px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(auto-fill,minmax(155px,1fr))}
  .cat-cards{grid-template-columns:repeat(auto-fill,minmax(155px,1fr))}
}