/* ============================================================
   Аквалим — стиль «технический паспорт изделия»
   Палитра: фарфор / петроль / вода
   Шрифты: Golos Text (текст и заголовки), PT Mono (тех. подписи)
   ============================================================ */

:root{
  --porcelain:#f4f7f8;      /* фон страницы */
  --white:#ffffff;
  --ink:#0f2730;            /* основной текст, глубокий петроль */
  --steel:#54707b;          /* вторичный текст */
  --water:#0d7a8c;          /* акцент — вода */
  --water-deep:#0a5f6e;
  --water-tint:#e3f0f2;     /* мягкая подложка */
  --line:#d7e1e4;
  --mono:'PT Mono',ui-monospace,'Courier New',monospace;
  --sans:'Golos Text',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --radius:10px;
  --shadow:0 16px 44px rgba(15,39,48,.10);
  --shadow-soft:0 8px 24px rgba(15,39,48,.07);
  --container:1140px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  margin:0;
  font:16px/1.68 var(--sans);
  color:var(--ink);
  background:var(--porcelain);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
main,header,section,.container{min-width:0}
img{display:block;max-width:100%;height:auto}
a{color:var(--water);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:4px}
.muted{color:var(--steel)}
.container{width:min(calc(100% - 36px),var(--container));margin-inline:auto}

::selection{background:var(--water);color:#fff}
:focus-visible{outline:2px solid var(--water);outline-offset:2px;border-radius:4px}

/* ---------- моноширинные технические подписи ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  margin:0 0 16px;
  font:700 12px/1 var(--mono);
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--water-deep);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--water)}

/* ---------- шапка ---------- */
.site-header{
  position:sticky;top:0;z-index:40;
  background:rgba(244,247,248,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(15,39,48,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand__mark{flex:0 0 auto;width:36px;height:36px}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-weight:800;font-size:19px;letter-spacing:.02em}
.brand__tag{font:400 11.5px/1.3 var(--mono);color:var(--steel);letter-spacing:.04em}
.nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav__link,.nav__btn{
  min-height:38px;padding:8px 14px;
  border-radius:999px;border:1px solid transparent;
  background:transparent;color:var(--ink);
  font:600 15px/1.2 var(--sans);cursor:pointer;
  display:inline-flex;align-items:center;
}
.nav__link:hover{background:var(--white);border-color:var(--line);text-decoration:none}
.nav__btn{background:var(--ink);color:#fff;border-color:var(--ink)}
.nav__btn:hover{background:var(--water-deep);border-color:var(--water-deep)}

/* ---------- кнопки ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:11px 20px;
  border-radius:999px;border:1px solid var(--water);
  background:var(--water);color:#fff;
  font:700 15px/1.2 var(--sans);cursor:pointer;text-decoration:none;
  transition:background .18s ease,border-color .18s ease,transform .12s ease;
}
.btn:hover{background:var(--water-deep);border-color:var(--water-deep);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{background:var(--white);color:var(--ink);border-color:var(--steel)}

/* ---------- герой ---------- */
.hero{position:relative;padding:52px 0 40px;overflow:hidden}
.hero::before{ /* лёгкая чертёжная сетка */
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(var(--line) 1px,transparent 1px) 0 0/100% 56px,
    linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/56px 100%;
  opacity:.35;
  mask-image:radial-gradient(120% 90% at 78% 8%,#000 0%,transparent 62%);
  -webkit-mask-image:radial-gradient(120% 90% at 78% 8%,#000 0%,transparent 62%);
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(300px,.94fr);
  gap:44px;align-items:center;
}
.hero-copy h1{
  margin:0 0 22px;max-width:720px;
  font-size:clamp(30px,3.4vw,47px);
  line-height:1.1;font-weight:800;letter-spacing:-.01em;
}
.hero-copy h1 span,
.hero-copy h1 .muted{
  display:block;margin-top:10px;max-width:640px;
  font-size:.56em!important;line-height:1.3!important;
  font-weight:600!important;color:var(--steel)!important;
}
.hero-copy .text-block{max-width:700px;margin:0 0 13px;color:#22343d}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* факты — статичные технические чипы */
.facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.fact{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 13px;border:1px solid var(--line);border-radius:999px;
  background:var(--white);
  font:700 12.5px/1.2 var(--mono);letter-spacing:.03em;color:var(--water-deep);
}
.fact::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--water)}

/* ---------- фото с подписью ---------- */
.figure{position:relative}
.hero-thumb{
  display:block;width:100%;padding:0;cursor:zoom-in;
  border:0;border-radius:14px;
  background:transparent;overflow:hidden;box-shadow:none;
}
.hero-thumb img{
  width:100%;height:clamp(460px,38vw,580px);
  padding:0;border-radius:14px;
  object-fit:contain;transition:transform .3s ease;
}
.hero-thumb:hover img{transform:scale(1.02)}

/* ---------- секции ---------- */
.section{padding:52px 0}
.section--alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-title{margin:0 0 12px;font-size:clamp(24px,2.5vw,33px);line-height:1.15;font-weight:800;letter-spacing:-.01em}
.section-lead{max-width:800px;margin:0 0 24px;color:var(--steel)}

/* ---------- карточки изделий ---------- */
.product-card{
  margin-top:22px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--white);box-shadow:var(--shadow-soft);
  overflow:hidden;
}
.product-card__head{
  display:flex;align-items:center;
  padding:18px 24px;border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,var(--water-tint),var(--white) 62%);
}
.product-card__head h3{margin:0;font-size:21px;line-height:1.25;font-weight:800}
.product-card__head h3 .muted{font-weight:600;font-size:.82em}
.product-card__body{
  display:grid;grid-template-columns:minmax(390px,.88fr) minmax(0,1.12fr);
  gap:32px;padding:24px;align-items:start;
}
.product-card__text .text-block{margin:0 0 12px}
.product-card__text .text-block:last-child{margin-bottom:0}

/* Техническая галерея: изделие всегда видно целиком, без обрезки. */
.thumb-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.thumb{
  display:flex;align-items:center;justify-content:center;
  height:148px;padding:10px;
  border:1px solid var(--line);border-radius:8px;
  background:#f5f6f4;overflow:hidden;cursor:zoom-in;
}
.thumb img{width:100%;height:100%;object-fit:contain;transition:transform .22s ease}
.thumb:hover img{transform:scale(1.025)}
.thumb-grid .thumb:first-child{
  grid-column:1 / -1;height:470px;padding:14px;
}

/* ---------- цены ---------- */
.price-box{
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:24px;align-items:center;
  padding:26px 28px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--porcelain);box-shadow:var(--shadow-soft);
}
.price-list{margin:0 0 14px;padding:0;list-style:none}
.price-list li{
  padding:13px 2px;margin:0;
  font:700 16.5px/1.5 var(--mono);
  border-bottom:1px dashed var(--line);
}
.price-list li:first-child{border-top:1px dashed var(--line)}
.price-list strong{color:var(--water-deep)}
.price-box .muted{margin:8px 0 0;font-size:14.5px}
.price-actions{display:flex;justify-content:flex-end}

/* ---------- подвал ---------- */
.site-footer{padding:44px 0 30px;background:var(--ink);color:#dfe9ec}
.site-footer a{color:#9fd6de}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:start}
.footer-brand .brand__name{color:#fff}
.footer-brand .brand__tag{color:#8fa6ad}
.footer-contacts p{margin:0 0 10px}
.footer-contacts .muted,.site-footer .muted{color:#8fa6ad}
.footer-note{margin-top:26px;padding-top:16px;border-top:1px solid rgba(255,255,255,.14);
  font:400 12.5px/1.6 var(--mono);color:#7d949c}

/* ---------- модальное окно и лайтбокс ---------- */
.modal,.lightbox{position:fixed;inset:0;display:none;z-index:100}
.modal[aria-hidden="false"],.lightbox[aria-hidden="false"]{display:block}
.modal__backdrop,.lightbox__backdrop{position:absolute;inset:0;background:rgba(10,24,30,.5);backdrop-filter:blur(5px)}
.modal__dialog{
  position:relative;width:min(680px,calc(100% - 28px));
  max-height:86vh;overflow:auto;margin:8vh auto;padding:26px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--white);box-shadow:var(--shadow);
}
.modal__title{margin:0 44px 16px 0;font-size:25px;font-weight:800}
.modal__content p{margin:0 0 12px}
.icon-btn{
  width:42px;height:42px;
  border:1px solid var(--line);border-radius:50%;
  background:var(--white);color:var(--ink);cursor:pointer;
  font-size:17px;line-height:1;
}
.icon-btn:hover{background:var(--water-tint)}
.modal__close{position:absolute;right:14px;top:14px}

.lightbox__stage{
  position:relative;z-index:1;
  width:min(1120px,calc(100% - 28px));height:min(82vh,760px);
  margin:7vh auto;border-radius:var(--radius);overflow:hidden;
  background:#fff;border:1px solid rgba(255,255,255,.35);box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:center;
}
.lightbox__img{width:100%;height:100%;object-fit:contain}
.lightbox .icon-btn{position:absolute;z-index:2;background:rgba(255,255,255,.94)}
.lightbox__close{right:12px;top:12px}
.lightbox__prev{left:12px;top:50%;transform:translateY(-50%)}
.lightbox__next{right:12px;top:50%;transform:translateY(-50%)}
.lightbox__caption{
  position:absolute;left:14px;bottom:14px;
  padding:7px 12px;border-radius:999px;
  background:rgba(10,24,30,.78);color:#fff;
  font:700 12px/1.2 var(--mono);letter-spacing:.05em;
}

/* ---------- появление при прокрутке ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ---------- адаптив ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .product-card__body{grid-template-columns:1fr}
  .thumb-grid .thumb:first-child{height:500px}
  .price-box{grid-template-columns:1fr}
  .price-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:620px){
  .container{width:min(calc(100% - 28px),var(--container))}
  .header-inner{flex-wrap:wrap}
  .nav{width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
  .nav__link,.nav__btn{min-width:0;padding:8px 6px;font-size:13.5px;justify-content:center}
  .hero{padding:34px 0 28px}
  .hero-thumb img{height:430px;padding:0}
  .section{padding:36px 0}
  .product-card__body{padding:16px;gap:22px}
  .thumb-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .thumb{height:132px;padding:7px}
  .thumb-grid .thumb:first-child{height:420px;padding:10px}
  .price-box{padding:20px}
  .price-list li{font-size:15px}
}

/* кнопка контактов в подвале */
.btn--footer{border-color:rgba(255,255,255,.32);color:#eaf3f5;background:transparent}
.btn--footer:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.5)}