:root{
  --ink:#171717; --ink-2:#262626; --gold:#c2a36b; --gold-d:#a8884f;
  --bg:#f7f5f0; --bg-2:#efece4; --line:#e2ddd1; --muted:#6b6b66; --white:#fff;
  --radius:14px; --shadow:0 10px 30px rgba(23,23,23,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font-family:'Manrope',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,100% - 40px);margin-inline:auto}
h1,h2,h3{line-height:1.15;margin:0;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5vw,3.8rem);font-weight:800}
h1 em{font-style:normal;color:var(--gold)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}

.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:16px}
.eyebrow--dark{color:var(--gold-d)}
.muted{color:var(--muted)}
.section--dark .muted,.hero .lead{color:#b9b6ae}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;border:1.5px solid transparent;cursor:pointer;font-family:inherit;transition:.25s}
.btn--gold{background:var(--gold);color:var(--ink)}
.btn--gold:hover{background:#d3b67f;transform:translateY(-2px)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--ink-2)}
.btn--ghost{border-color:rgba(255,255,255,.3);color:#fff}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}

/* header */
.header{position:sticky;top:0;z-index:50;background:rgba(247,245,240,.88);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.3s}
.header.is-scrolled{border-color:var(--line);box-shadow:0 4px 20px rgba(0,0,0,.05)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo img{height:52px;width:auto}
.nav{display:flex;align-items:center;gap:28px;font-weight:600;font-size:.93rem}
.nav a:not(.btn){position:relative;padding:4px 0}
.nav a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--gold);transition:.25s}
.nav a:not(.btn):hover::after{width:100%}
.nav__cta{padding:10px 20px}
.burger{display:none;width:44px;height:44px;border:0;background:none;cursor:pointer;position:relative}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:var(--ink);transition:.3s}
.burger span:first-child{top:17px}.burger span:last-child{top:25px}
.burger[aria-expanded="true"] span:first-child{top:21px;transform:rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{top:21px;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:96px 0 104px}
.hero__grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 70% 40%,#000 10%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 70% 40%,#000 10%,transparent 70%)}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(194,163,107,.28),transparent 70%)}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr 1fr;gap:56px;align-items:center}
.lead{font-size:1.12rem;max-width:560px;margin:24px 0 32px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.hero__card{display:grid;gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);overflow:hidden}
.hero__stat{background:#1f1f1f;padding:24px 28px;display:flex;align-items:center;gap:22px}
.hero__stat b{font-size:2.4rem;font-weight:800;color:var(--gold);min-width:84px}
.hero__stat span{color:#c9c6be;font-size:.95rem;line-height:1.4}

.strip{background:var(--gold);color:var(--ink)}
.strip__inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;padding:16px 0;font-weight:700;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase}

/* sections */
.section{padding:96px 0}
.section--alt{background:var(--bg-2)}
.section--dark{background:var(--ink);color:#fff}
.section__head{margin-bottom:48px;max-width:720px}
.section__head--row{max-width:none;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:24px}

.about{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start}
.about__text p{color:#47474a}
.checks{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:12px}
.checks li{position:relative;padding-left:34px;font-weight:600}
.checks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:var(--gold) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23171717' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/12px no-repeat}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.3s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold)}
.card__icon{width:52px;height:52px;border-radius:12px;background:var(--ink);display:grid;place-items:center;margin-bottom:22px}
.card__icon svg{width:26px;height:26px;fill:none;stroke:var(--gold);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:.95rem;margin:0}

/* catalog */
.tabs{display:flex;flex-wrap:wrap;gap:8px}
.tab{font-family:inherit;font-weight:600;font-size:.88rem;padding:9px 18px;border-radius:999px;border:1.5px solid var(--line);background:#fff;cursor:pointer;transition:.2s}
.tab:hover{border-color:var(--gold)}
.tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.3s}
.product:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.product.is-hidden{display:none}
.product__img{aspect-ratio:4/3;background:linear-gradient(135deg,#ecE8dd,#f6f3ec);display:grid;place-items:center;overflow:hidden}
.product__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.product:hover .product__img img{transform:scale(1.05)}
.product__img.no-img::after{content:attr(data-name);font-weight:800;font-size:1.6rem;color:var(--gold-d)}
.product__body{padding:24px;display:flex;flex-direction:column;flex:1;position:relative}
.badge{position:absolute;top:-14px;left:24px;background:var(--ink);color:#fff;font-size:.72rem;font-weight:700;padding:4px 12px;border-radius:999px;letter-spacing:.04em}
.badge--gold{background:var(--gold);color:var(--ink)}
.product h3{font-size:1.4rem;margin-bottom:8px}
.product p{color:var(--muted);font-size:.93rem}
.product dl{margin:auto 0 18px;display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:.88rem}
.product dt{color:var(--muted)}
.product dd{margin:0;font-weight:700;text-align:right}
.link{font-weight:700;font-size:.93rem;color:var(--ink);transition:.2s}
.link:hover{color:var(--gold-d);letter-spacing:.01em}

/* materials */
.mat{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mat__col{border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:26px;background:#1d1d1d}
.mat__col h3{color:var(--gold);margin-bottom:18px;font-size:1rem;text-transform:uppercase;letter-spacing:.08em}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{padding:7px 14px;border-radius:8px;background:rgba(255,255,255,.07);font-weight:600;font-size:.88rem;border:1px solid rgba(255,255,255,.08);transition:.2s}
.chips span:hover{background:var(--gold);color:var(--ink)}

.apps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.apps div{padding:22px 20px;border:1px solid var(--line);border-radius:12px;background:#fff;font-weight:600;border-left:4px solid var(--gold);transition:.25s}
.apps div:hover{background:var(--ink);color:#fff}

.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.steps li{background:#fff;border-radius:var(--radius);padding:30px 26px;border:1px solid var(--line);position:relative}
.steps li span{display:block;font-size:2.6rem;font-weight:800;color:var(--gold);line-height:1;margin-bottom:18px}
.steps h3{margin-bottom:8px}
.steps p{color:var(--muted);font-size:.93rem;margin:0}

/* contact */
.contact__inner{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start}
.contacts{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:20px}
.contacts li{border-left:3px solid var(--gold);padding-left:18px;display:grid}
.contacts small{color:#8d8a82;text-transform:uppercase;letter-spacing:.1em;font-size:.72rem}
.contacts a,.contacts b{font-size:1.1rem;font-weight:600}
.contacts a:hover{color:var(--gold)}
.form{background:#fff;color:var(--ink);padding:36px;border-radius:var(--radius);display:grid;gap:16px}
.form label{display:grid;gap:6px;font-weight:600;font-size:.88rem}
.form input,.form select,.form textarea{font:inherit;padding:13px 14px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);transition:.2s;width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--gold);background:#fff;box-shadow:0 0 0 4px rgba(194,163,107,.2)}
.form .is-invalid{border-color:#c0392b}
.form__note{margin:0;font-size:.9rem;font-weight:600;min-height:1.2em}
.form__note.ok{color:#2e7d32}.form__note.err{color:#c0392b}

.footer{background:#0f0f0f;color:#a9a69e;padding:44px 0;font-size:.9rem}
.footer__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.footer__logo img{height:56px;border-radius:8px}
.footer p{margin:0}
.footer__copy{color:#7b7870}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.reveal.is-visible{opacity:1;transform:none}

@media (max-width:1020px){
  .cards,.mat,.steps{grid-template-columns:repeat(2,1fr)}
  .products{grid-template-columns:repeat(2,1fr)}
  .apps{grid-template-columns:repeat(2,1fr)}
  .hero__inner,.about,.contact__inner{grid-template-columns:1fr;gap:40px}
}
@media (max-width:820px){
  .burger{display:block}
  .nav{position:fixed;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);padding:12px 20px 24px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .35s;box-shadow:0 20px 30px rgba(0,0,0,.08)}
  .nav.is-open{transform:none}
  .nav a:not(.btn){padding:14px 0;border-bottom:1px solid var(--line)}
  .nav__cta{margin-top:16px}
  .section{padding:68px 0}
  .hero{padding:64px 0 72px}
}
@media (max-width:600px){
  .cards,.mat,.steps,.products,.apps{grid-template-columns:1fr}
  .form{padding:24px}
  .strip__inner{justify-content:center}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}html{scroll-behavior:auto}}

/* language switcher */
.lang{display:flex;gap:2px;padding:3px;border:1.5px solid var(--line);border-radius:999px;background:#fff;margin-left:20px}
.lang button{font:inherit;font-size:.78rem;font-weight:700;letter-spacing:.04em;padding:6px 11px;border:0;border-radius:999px;background:none;cursor:pointer;color:var(--muted);transition:.2s}
.lang button:hover{color:var(--ink)}
.lang button.is-active{background:var(--ink);color:#fff}
@media (max-width:820px){.lang{margin-left:auto;margin-right:8px}}