:root{
  --bg:#f6f9fc; --dark:#0b2545; --accent:#1e88e5; --accent-2:#00bfa5;
  --text:#22303f; --muted:#5b6b7c; --card:#fff; --border:#e2e9f1;
  --gold:#f5d76e; --gold-deep:#d4af37;
  --radius:18px; --shadow:0 10px 30px rgba(11,37,69,.08); --max:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);
  color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:90px 0}
h1,h2,h3{line-height:1.2;color:var(--dark);font-weight:700}
h1{font-size:clamp(2rem,4.5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:14px}
h3{font-size:1.2rem;margin-bottom:10px}
.lead{font-size:1.15rem;color:var(--muted);max-width:720px}
.eyebrow{display:inline-block;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:700;margin-bottom:14px}
.btn{display:inline-block;padding:14px 28px;border-radius:999px;font-weight:600;
  transition:.2s;border:2px solid transparent;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(30,136,229,.35)}
.btn-primary:hover{background:#1565c0;transform:translateY(-2px)}
.btn-ghost{border-color:var(--accent);color:var(--accent);background:transparent}
.btn-ghost:hover{background:rgba(30,136,229,.08)}

/* ===== ХЕДЕР / ЛОГОТИП ===== */
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.85);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;text-decoration:none}
.logo-mark{display:inline-grid;grid-template-areas:"stack";place-items:center;
  position:relative;padding:4px}
.logo-mark > *{grid-area:stack}
.logo-drop{width:56px;height:56px;color:#1565c0;
  filter:drop-shadow(0 4px 8px rgba(21,101,192,.3));z-index:1;
  transform:translateY(2px);transition:transform .3s ease, color .3s ease}
.logo:hover .logo-drop{transform:translateY(2px) scale(1.05);color:#0d47a1}
.logo-text{font-weight:900;font-size:1.3rem;letter-spacing:-.02em;
  color:var(--dark);z-index:2;
  text-shadow:0px 1px 3px rgba(255,255,255,.9),0px 0px 8px rgba(255,255,255,.5)}
footer .logo-text{color:#fff;text-shadow:0px 1px 2px rgba(0,0,0,.4)}
footer .logo-drop{color:rgba(255,255,255,.15);filter:none}
footer .logo:hover .logo-drop{color:rgba(255,255,255,.25)}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--text);font-weight:500;font-size:.95rem}
.nav-links a:hover{color:var(--accent)}
.burger{display:none;font-size:1.6rem;background:none;border:none;color:var(--dark);cursor:pointer}

/* ===== КАРУСЕЛЬ (21:7) ===== */
.carousel-section{padding:24px 0 8px;
  background:radial-gradient(circle at 50% 0%, rgba(30,136,229,.08), transparent 60%)}
.carousel-wrap{display:flex;justify-content:center}
.carousel{position:relative;width:100%;max-width:1180px;border-radius:24px;
  overflow:hidden;box-shadow:0 24px 60px rgba(11,37,69,.18);
  background:#dff1ff;aspect-ratio:21/7}
.carousel-track{display:flex;height:100%;transition:transform .5s ease;will-change:transform}
.slide{flex:0 0 100%;width:100%;height:100%;position:relative;
  display:flex;align-items:center;justify-content:center;overflow:hidden}
.slide img{width:100%;height:100%;object-fit:cover;transition:transform 6s ease-out}
.slide.is-active img{transform:scale(1.06)}
.slide-fallback{width:100%;height:100%;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:8px;color:var(--muted);
  font-size:.9rem;text-align:center;padding:20px;background:linear-gradient(160deg,#dff1ff,#e6fff9)}
.slide-fallback b{color:var(--accent);font-size:1.1rem}
.carousel-dots{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);
  display:flex;gap:8px;z-index:5;background:rgba(255,255,255,.6);
  backdrop-filter:blur(6px);padding:6px 12px;border-radius:999px}
.carousel-dot{width:9px;height:9px;border-radius:50%;border:none;cursor:pointer;
  padding:0;background:rgba(11,37,69,.3);transition:.25s}
.carousel-dot:hover{background:rgba(11,37,69,.55)}
.carousel-dot.active{background:var(--accent);width:22px;border-radius:999px}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);
  width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.75);
  backdrop-filter:blur(6px);border:none;cursor:pointer;z-index:5;
  display:flex;align-items:center;justify-content:center;
  color:var(--dark);font-size:1.2rem;font-weight:700;transition:.2s;
  box-shadow:0 4px 14px rgba(11,37,69,.15)}
.carousel-arrow:hover{background:#fff;transform:translateY(-50%) scale(1.08)}
.carousel-arrow.prev{left:12px}
.carousel-arrow.next{right:12px}

/* ===== HERO ===== */
.hero{padding:80px 0 80px;
  background:radial-gradient(circle at 80% 10%, rgba(0,191,165,.12), transparent 45%),
             radial-gradient(circle at 10% 90%, rgba(30,136,229,.12), transparent 40%)}
.hero-grid{display:grid;grid-template-columns:4fr 1fr;gap:40px;align-items:end}
.hero p.lead{margin:22px 0 32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-badges{display:flex;gap:22px;margin-top:38px;flex-wrap:wrap}
.badge{display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--muted)}
.badge b{color:var(--dark)}
.hero-visual{position:relative;display:flex;align-items:flex-end;
  justify-content:center;align-self:end;margin-top:80px}
.membrane-img{width:100%;height:auto;object-fit:contain;display:block;border-radius:12px}
.membrane-fallback-shape{display:none;width:100%;aspect-ratio:1/1;border-radius:12px;
  background:radial-gradient(circle,#1e88e5 1.6px,transparent 2px) 0 0/18px 18px,
    radial-gradient(circle,#00bfa5 1.4px,transparent 2px) 9px 9px/18px 18px,
    linear-gradient(160deg,#c8e6ff,#b2f5ea);
  opacity:.85}
.membrane-fallback .membrane-fallback-shape{display:block}

/* ===== СЕТКИ / КАРТОЧКИ ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:46px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:40px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow);transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(11,37,69,.12)}
.card .icon{width:52px;height:52px;border-radius:14px;margin-bottom:18px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.4rem;font-weight:700}
.card p{color:var(--muted);font-size:.96rem}

/* ===== ПРОЦЕСС ===== */
.process{background:var(--dark);color:#fff;padding:90px 0}
.process h2,.process h3{color:#fff}
.process .lead{color:#b9c6d4}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:46px;counter-reset:step}
.step{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:30px;position:relative}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-18px;left:26px;
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:1rem}
.step p{color:#c3cfdb;font-size:.95rem;margin-top:8px}
.step .tag{display:inline-block;margin-top:16px;font-size:.75rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--accent-2);font-weight:700}

/* ===== ТАБЛИЦА ===== */
.compare{width:100%;border-collapse:collapse;margin-top:40px;background:#fff;
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.compare th,.compare td{padding:18px 20px;text-align:left;
  border-bottom:1px solid var(--border);font-size:.95rem}
.compare th{background:var(--dark);color:#fff;font-weight:600}
.compare tr:last-child td{border-bottom:none}
.compare td:first-child{font-weight:600;color:var(--dark)}
.compare .yes{color:#00a67e;font-weight:700}
.compare .no{color:#c0392b}

/* ===== ЭФФЕКТИВНОСТЬ / БАКТЕРИИ ===== */
.protection{padding:90px 0}
.efficiency{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:46px}
.efficiency-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 20px 24px;box-shadow:var(--shadow);transition:.25s}
.efficiency-item:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(11,37,69,.12)}
.efficiency-bar{height:8px;border-radius:999px;background:#e6eef7;overflow:hidden;margin-bottom:16px}
.efficiency-fill{height:100%;width:var(--val);border-radius:999px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transition:width 1.2s cubic-bezier(.4,0,.2,1)}
.efficiency-label b{display:block;font-size:1.6rem;color:var(--dark);line-height:1}
.efficiency-label span{display:block;font-size:.85rem;color:var(--muted);margin-top:6px}

.bacteria{margin-top:70px}
.bacteria h3{margin-bottom:14px}
.bacteria-intro{color:var(--muted);max-width:760px;margin-bottom:32px}
.bacteria-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.bacteria-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 28px;box-shadow:var(--shadow);transition:.25s}
.bacteria-card:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(11,37,69,.1)}
.bacteria-icon{width:44px;height:44px;border-radius:12px;margin-bottom:14px;
  background:linear-gradient(135deg,#dff1ff,#e6fff9);
  display:flex;align-items:center;justify-content:center;font-size:1.3rem}
.bacteria-card h4{font-size:1.05rem;color:var(--dark);margin-bottom:12px}
.bacteria-card ul{list-style:none}
.bacteria-card li{position:relative;padding-left:18px;font-size:.9rem;
  color:var(--muted);margin-bottom:6px;line-height:1.5}
.bacteria-card li::before{content:"";position:absolute;left:0;top:.55em;
  width:6px;height:6px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-2))}

/* ===== ПРОДУКЦИЯ ===== */
.product-card{display:flex;flex-direction:column}
.product-visual{height:180px;border-radius:14px;margin-bottom:20px;
  background:linear-gradient(160deg,#dff1ff,#e6fff9);
  display:flex;align-items:center;justify-content:center;font-weight:700;
  color:var(--accent);position:relative;overflow:hidden}
.product-visual span{font-size:2.4rem;opacity:.85}
.product-visual small{position:absolute;bottom:10px;right:14px;
  font-size:.7rem;color:var(--muted);font-weight:600}
.specs{list-style:none;margin:16px 0 0}
.specs li{display:flex;justify-content:space-between;padding:8px 0;
  border-bottom:1px dashed var(--border);font-size:.9rem}
.specs li span:last-child{font-weight:600;color:var(--dark)}
.product-price{margin-top:20px;font-weight:700;color:var(--dark);font-size:1.1rem}

/* ===== СЕРТИФИКАТЫ И ДОКУМЕНТЫ ===== */
.certs{background:#eef5fc}
.cert-group{margin-bottom:50px}
.cert-group:last-child{margin-bottom:0}
.cert-group-title{display:flex;align-items:center;gap:10px;font-size:1.3rem;
  margin-bottom:24px;color:var(--dark);border-bottom:2px solid var(--border);padding-bottom:12px}
.cert-group-title span{font-size:1.5rem}

/* Сетка в 3 колонки (для патентов и сертификатов) */
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;width:100%}

/* Сетка в 4 колонки (для дипломов) */
.cert-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;width:100%}

.cert{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:16px;text-align:center;transition:.25s;display:flex;flex-direction:column;
  box-shadow:var(--shadow)}
.cert:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(11,37,69,.12)}
.cert-img-wrap{width:100%;aspect-ratio:3/4;border-radius:12px;overflow:hidden;
  background:linear-gradient(160deg,#dff1ff,#e6fff9);
  display:flex;align-items:center;justify-content:center;
  cursor:zoom-in;position:relative}
.cert-img-wrap img{width:100%;height:100%;object-fit:cover;transition:.3s}
.cert-img-wrap:hover img{transform:scale(1.04)}
.cert-fallback{display:none;flex-direction:column;align-items:center;
  justify-content:center;color:var(--muted);font-size:.8rem;
  text-align:center;padding:16px;gap:6px}
.cert-fallback .cert-icon{width:64px;height:64px;border-radius:16px;
  background:linear-gradient(135deg,#dff1ff,#e6fff9);
  display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--accent)}
.cert-body{padding:16px 6px 6px}
.cert b{display:block;color:var(--dark);margin-bottom:6px;font-size:.95rem}
.cert small{color:var(--muted);font-size:.82rem;display:block}

/* ===== НАГРАДА ===== */
.award{position:relative;
  background:radial-gradient(ellipse at 50% 40%, rgba(212,175,55,.16), transparent 55%),
    linear-gradient(135deg, var(--dark), #123a6b);
  color:#fff;padding:70px 0;overflow:hidden}
.award::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg, transparent, var(--gold-deep), var(--gold), var(--gold-deep), transparent)}
.award-inner{max-width:720px;margin:0 auto;text-align:center;position:relative;z-index:1}
.award-trophy{display:inline-flex;align-items:center;justify-content:center;
  position:relative;margin:8px auto 28px;padding:18px 26px;border-radius:18px;
  background:rgba(255,255,255,.04);border:1px solid rgba(245,215,110,.35);
  box-shadow:0 0 0 1px rgba(245,215,110,.12),0 18px 40px rgba(0,0,0,.35),
    inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .4s ease, box-shadow .4s ease}
.award-trophy::before{content:"";position:absolute;inset:-22px;border-radius:24px;
  background:radial-gradient(ellipse, rgba(245,215,110,.28), transparent 70%);
  filter:blur(10px);animation:awardGlow 4.5s ease-in-out infinite;z-index:-1}
.award-trophy:hover{transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(245,215,110,.25),0 24px 55px rgba(0,0,0,.45),
    inset 0 1px 0 rgba(255,255,255,.08)}
.award-trophy img{display:block;width:401px;height:133px;max-width:100%;
  object-fit:contain;filter:drop-shadow(0 6px 16px rgba(0,0,0,.4))}
.award-trophy .medal-fallback{display:none;width:401px;height:133px;max-width:100%;
  align-items:center;justify-content:center;gap:10px;font-size:1.1rem;font-weight:700;
  letter-spacing:.06em;color:var(--gold);
  background:linear-gradient(135deg, rgba(245,215,110,.12), rgba(212,175,55,.06));
  border-radius:12px}
.award-trophy .medal-fallback span{font-size:2rem}
@keyframes awardGlow{0%,100%{opacity:.65;transform:scale(1)}
  50%{opacity:1;transform:scale(1.05)}}
.award-text .eyebrow{color:var(--gold);margin-bottom:12px}
.award-text h2{color:#fff;font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:14px}
.award-text p{color:#c3cfdb;font-size:1rem;max-width:520px;margin:0 auto}
.award-text .award-year{display:inline-block;margin-top:22px;padding:8px 22px;
  border-radius:999px;background:rgba(245,215,110,.12);
  border:1px solid rgba(245,215,110,.45);color:var(--gold);
  font-weight:700;letter-spacing:.08em;font-size:.85rem}

/* ===== ЛАЙТБОКС ===== */
.lightbox{position:fixed;inset:0;background:rgba(11,37,69,.9);
  display:none;align-items:center;justify-content:center;z-index:1000;
  padding:24px;cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:90vw;max-height:90vh;border-radius:12px;
  box-shadow:0 30px 80px rgba(0,0,0,.5);background:#fff}
.lightbox-close{position:absolute;top:20px;right:24px;background:rgba(255,255,255,.15);
  color:#fff;border:none;width:44px;height:44px;border-radius:50%;
  font-size:1.6rem;cursor:pointer;display:flex;align-items:center;justify-content:center}
.lightbox-close:hover{background:rgba(255,255,255,.3)}

.note{margin-top:34px;padding:18px 22px;border-radius:14px;
  background:rgba(30,136,229,.08);border-left:4px solid var(--accent);
  font-size:.92rem;color:var(--muted)}

/* ===== CTA ===== */
.cta{background:linear-gradient(135deg,var(--dark),#123a6b);color:#fff;
  text-align:center;padding:80px 0;border-radius:32px;margin:0 24px}
.cta h2{color:#fff}
.cta p{color:#b9c6d4;max-width:600px;margin:16px auto 30px}

/* ===== ФУТЕР ===== */
footer{background:var(--dark);color:#9fb0c2;padding:56px 0 32px;margin-top:90px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
footer a{color:#9fb0c2;display:block;margin-bottom:8px;font-size:.92rem}
footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;
  font-size:.85rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ===== АДАПТИВ ===== */
@media(max-width:1100px){
  .efficiency{grid-template-columns:repeat(3,1fr)}
  .cert-grid-4{grid-template-columns:repeat(3,1fr)} /* Дипломы тоже сжимаем до 3 */
}
@media(max-width:900px){
  .hero-grid,.grid-3,.grid-2,.steps,.footer-grid{grid-template-columns:1fr}
  .hero-visual{max-width:200px;margin:24px auto 0}
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;
    background:#fff;flex-direction:column;padding:20px;gap:16px;
    border-bottom:1px solid var(--border);box-shadow:0 10px 30px rgba(11,37,69,.08)}
  .nav-links.open{display:flex}
  .burger{display:block}
  section{padding:64px 0}
  .compare{font-size:.85rem}
  .compare th,.compare td{padding:12px}
  .cert-grid, .cert-grid-4{grid-template-columns:repeat(2,1fr)} /* На планшетах 2 колонки */
  .carousel-arrow{width:32px;height:32px;font-size:1rem}
  .bacteria-grid{grid-template-columns:1fr}
  .efficiency{grid-template-columns:repeat(2,1fr)}
  .carousel{aspect-ratio:16/7}
}
@media(max-width:520px){
  .award-trophy{padding:12px 14px;border-radius:14px}
  .award-trophy img{width:100%;height:auto}
  .award{padding:56px 0}
  .cert-grid, .cert-grid-4{grid-template-columns:1fr} /* На телефонах 1 колонка */
  .cert-img-wrap{aspect-ratio:3/4} 
  .efficiency{grid-template-columns:1fr}
  .carousel-arrow.prev{left:8px}
  .carousel-arrow.next{right:8px}
  .carousel{aspect-ratio:16/9}
  .logo-drop{width:44px;height:44px}
  .logo-text{font-size:1.1rem}
}