/* ====== ПЕРЕМЕННЫЕ ====== */
:root{
    --blue:#2196f3;
    --blue-dark:#1976d2;
    --dark:#1c2026;
    --dark-2:#262b33;
    --gray:#f4f5f7;
    --gray-2:#e6e8ec;
    --text:#2b2f36;
    --muted:#737a85;
    --white:#fff;
    --radius:14px;
    --shadow:0 12px 40px rgba(20,30,50,.12);
    --container:1180px;
}

/* ====== БАЗА ====== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    font-family:'Open Sans',sans-serif;
    color:var(--text);
    line-height:1.6;
    background:var(--white);
    -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Montserrat',sans-serif;line-height:1.2;color:var(--dark)}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:.2s}

.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%}
.container--narrow{max-width:820px}

/* ====== КНОПКИ ====== */
.btn{
    display:inline-flex;align-items:center;justify-content:center;
    font-family:'Montserrat',sans-serif;font-weight:600;font-size:15px;
    padding:14px 28px;border-radius:10px;border:none;cursor:pointer;
    background:var(--blue);color:#fff;transition:.2s;white-space:nowrap;
}
.btn:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(33,150,243,.35)}
.btn--accent{background:#ff7a18}
.btn--accent:hover{background:#e96b0c;box-shadow:0 8px 20px rgba(255,122,24,.35)}
.btn--ghost{background:transparent;border:2px solid rgba(255,255,255,.6);color:#fff;padding:12px 26px}
.btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn--white{background:#fff;color:var(--dark)}
.btn--white:hover{background:#f0f0f0}
.btn--small{padding:10px 18px;font-size:14px}
.btn--block{width:100%}

/* ====== ВЕРХНЯЯ ПОЛОСА ====== */
.topbar{background:var(--dark);color:#cfd4dc;font-size:13.5px}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;padding:9px 20px}
.topbar__item{display:flex;align-items:center;gap:8px}
.topbar__item svg{color:var(--blue);flex-shrink:0}
.topbar strong{color:#fff;font-weight:600}

/* ====== ШАПКА ====== */
.header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.07)}
.header__inner{display:flex;align-items:center;gap:30px;padding:14px 20px}

.logo{display:flex;align-items:center;gap:12px}
.logo__mark{
    width:46px;height:46px;border-radius:10px;flex-shrink:0;
    background:linear-gradient(135deg,var(--blue),var(--blue-dark));
    color:#fff;font-family:'Montserrat';font-weight:800;font-size:18px;
    display:flex;align-items:center;justify-content:center;
}
.logo__text{font-family:'Montserrat';font-weight:800;font-size:21px;color:var(--dark);line-height:1.05;display:flex;flex-direction:column}
.logo__name{white-space:nowrap}
.logo__accent{color:var(--blue)}
.logo__text small{font-family:'Open Sans';font-weight:500;font-size:10.5px;color:var(--muted);letter-spacing:.3px;text-transform:uppercase}

.nav{display:flex;gap:26px;margin-left:auto}
.nav a{font-family:'Montserrat';font-weight:600;font-size:15px;color:var(--text)}
.nav a:hover{color:var(--blue)}

.header__contacts{display:flex;align-items:center;gap:18px}
.header__phone{font-family:'Montserrat';font-weight:700;font-size:18px;color:var(--dark);white-space:nowrap}
.header__phone:hover{color:var(--blue)}

.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;margin-left:auto}
.burger span{width:26px;height:3px;background:var(--dark);border-radius:3px;transition:.25s}
.burger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ====== HERO ====== */
.hero{
    position:relative;color:#fff;
    background:url('../img/4.webp') center/cover no-repeat;
    min-height:600px;display:flex;align-items:center;
}
.hero__overlay{
    position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(15,22,35,.92) 0%,rgba(15,22,35,.72) 45%,rgba(15,22,35,.35) 100%);
}
.hero__inner{position:relative;z-index:2;padding-top:70px;padding-bottom:70px}
.hero__content{max-width:640px}
.hero__badge{
    display:inline-block;background:rgba(33,150,243,.2);border:1px solid rgba(33,150,243,.5);
    color:#9fd0ff;padding:7px 16px;border-radius:30px;font-size:13.5px;font-weight:600;
    font-family:'Montserrat';margin-bottom:22px;
}
.hero h1{font-size:50px;font-weight:900;color:#fff;margin-bottom:20px}
.hero__lead{font-size:19px;color:#dfe4ec;margin-bottom:26px;max-width:560px}
.hero__features{list-style:none;display:flex;flex-wrap:wrap;gap:14px 26px;margin-bottom:34px}
.hero__features li{position:relative;padding-left:28px;font-weight:600;font-size:15.5px;color:#eef2f7}
.hero__features li::before{
    content:"✓";position:absolute;left:0;top:-1px;
    width:20px;height:20px;background:var(--blue);color:#fff;border-radius:50%;
    display:flex;align-items:center;justify-content:center;font-size:12px;
}
.hero__buttons{display:flex;gap:14px;flex-wrap:wrap}

/* ====== СЕКЦИИ ====== */
.section{padding:84px 0}
.section--gray{background:var(--gray)}
.section--dark{background:var(--dark);color:#cfd4dc}
.section__head{text-align:center;max-width:680px;margin:0 auto 52px}
.section__kicker{
    display:inline-block;color:var(--blue);font-family:'Montserrat';font-weight:700;
    font-size:14px;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:12px;
}
.section__head h2{font-size:38px;font-weight:800}
.section--dark .section__head h2{color:#fff}
.section__sub{margin-top:14px;color:var(--muted);font-size:17px}

/* ====== ПРЕИМУЩЕСТВА ====== */
.advantages{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv-card{
    background:#fff;border-radius:var(--radius);padding:34px 26px;text-align:center;
    box-shadow:0 6px 24px rgba(20,30,50,.07);transition:.25s;border:1px solid var(--gray-2);
}
.adv-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.adv-card__icon{
    width:64px;height:64px;margin:0 auto 18px;border-radius:16px;
    background:linear-gradient(135deg,#e8f3ff,#d3e8ff);color:var(--blue-dark);
    display:flex;align-items:center;justify-content:center;
}
.adv-card__icon svg{width:30px;height:30px}
.adv-card h3{font-size:19px;margin-bottom:10px}
.adv-card p{color:var(--muted);font-size:14.5px}

/* ====== ПРОДУКЦИЯ ====== */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.product{
    background:#fff;border-radius:var(--radius);overflow:hidden;
    box-shadow:0 6px 24px rgba(20,30,50,.08);transition:.25s;border:1px solid var(--gray-2);
    display:flex;flex-direction:column;
}
.product:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.product__img{height:240px;overflow:hidden}
.product__img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.product:hover .product__img img{transform:scale(1.06)}
.product__body{padding:26px;display:flex;flex-direction:column;flex:1}
.product__body h3{font-size:21px;margin-bottom:12px}
.product__body p{color:var(--muted);font-size:15px;margin-bottom:22px;flex:1}

/* ====== ПРОИЗВОДСТВО ====== */
.production{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.production__media{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.production__media img{border-radius:var(--radius);height:280px;width:100%;object-fit:cover}
.production__media img:first-child{margin-top:26px}
.production__content h2{color:#fff;font-size:36px;margin-bottom:18px}
.production__content p{color:#aab2bf;font-size:16.5px;margin-bottom:30px}
.production__stats{display:flex;gap:34px;margin-bottom:32px;flex-wrap:wrap}
.stat{display:flex;flex-direction:column}
.stat__num{font-family:'Montserrat';font-weight:800;font-size:34px;color:var(--blue)}
.stat__label{color:#8b93a0;font-size:14px}

/* ====== ШАГИ ====== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{background:#fff;border-radius:var(--radius);padding:32px 26px;position:relative;border:1px solid var(--gray-2);overflow:hidden}
.step__num{font-family:'Montserrat';font-weight:900;font-size:46px;color:var(--gray-2);line-height:1;display:block;margin-bottom:14px}
.step h3{font-size:20px;margin-bottom:10px}
.step p{color:var(--muted);font-size:14.5px}
.step::after{content:"";position:absolute;top:0;left:0;width:5px;height:100%;background:var(--blue)}

/* ====== CTA ПОЛОСА ====== */
.cta-strip{background:linear-gradient(120deg,var(--blue),var(--blue-dark));color:#fff;padding:56px 0}
.cta-strip__inner{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-strip h2{color:#fff;font-size:30px;margin-bottom:6px}
.cta-strip p{color:#e3f0ff;font-size:17px}

/* ====== FAQ ====== */
.faq{display:flex;flex-direction:column;gap:14px}
.faq__item{background:var(--gray);border-radius:12px;padding:6px 24px;border:1px solid var(--gray-2)}
.faq__item summary{font-family:'Montserrat';font-weight:600;font-size:17px;cursor:pointer;padding:16px 0;list-style:none;position:relative;padding-right:34px}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";position:absolute;right:0;top:14px;font-size:24px;color:var(--blue);transition:.2s}
.faq__item[open] summary::after{transform:rotate(45deg)}
.faq__item p{color:var(--muted);padding:0 0 18px;font-size:15.5px}

/* ====== КОНТАКТЫ ====== */
.contacts__grid{display:grid;grid-template-columns:1fr 1.4fr;gap:40px;align-items:stretch}
.contacts__info{display:flex;flex-direction:column;gap:18px}
.contact-line{display:flex;flex-direction:column;gap:3px;padding-bottom:16px;border-bottom:1px solid var(--gray-2)}
.contact-line__label{font-size:13px;text-transform:uppercase;letter-spacing:.6px;color:var(--blue);font-weight:700;font-family:'Montserrat'}
.contact-line__value{font-size:17px;color:var(--dark)}
a.contact-line__value:hover{color:var(--blue)}
.contacts__info .btn{margin-top:8px}
.contacts__map{border-radius:var(--radius);overflow:hidden;min-height:420px;box-shadow:var(--shadow);border:1px solid var(--gray-2)}
.contacts__map iframe{width:100%;height:100%;min-height:420px;border:0}

/* ====== ФУТЕР ====== */
.footer{background:var(--dark);color:#9aa2af;padding-top:60px}
.footer__inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.logo--light .logo__text{color:#fff}
.logo--light .logo__text small{color:#7c8492}
.footer__col p{margin-top:16px;font-size:14.5px;line-height:1.7}
.footer__col h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer__col a{display:block;margin-bottom:10px;font-size:14.5px;color:#9aa2af}
.footer__col a:hover{color:var(--blue)}
.footer__contact{margin-top:0!important;margin-bottom:14px}
.footer__contact strong{color:#fff}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0}
.footer__bottom .container{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13.5px}

/* ====== МОДАЛКА ====== */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal.active{display:flex}
.modal__overlay{position:absolute;inset:0;background:rgba(15,20,30,.7);backdrop-filter:blur(3px)}
.modal__box{position:relative;background:#fff;border-radius:var(--radius);padding:40px 36px;max-width:440px;width:100%;box-shadow:var(--shadow);animation:pop .25s ease}
@keyframes pop{from{transform:scale(.94);opacity:0}to{transform:scale(1);opacity:1}}
.modal__close{position:absolute;top:14px;right:18px;background:none;border:none;font-size:30px;line-height:1;color:var(--muted);cursor:pointer}
.modal__close:hover{color:var(--dark)}
.modal__box h3{font-size:24px;margin-bottom:8px}
.modal__box>p{color:var(--muted);margin-bottom:22px}
.form{display:flex;flex-direction:column;gap:14px}
.form input,.form textarea{
    font-family:'Open Sans';font-size:15px;padding:13px 16px;border:1.5px solid var(--gray-2);
    border-radius:10px;width:100%;resize:vertical;transition:.2s;
}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue)}
.form__note{color:var(--muted);font-size:12px;text-align:center}

/* ====== АДАПТИВ ====== */
/* бургер-меню на узких десктопах и планшетах */
@media(max-width:1080px){
    .nav{
        position:fixed;top:0;right:-100%;height:100vh;width:80%;max-width:320px;
        background:#fff;flex-direction:column;padding:90px 30px;gap:6px;
        box-shadow:-10px 0 40px rgba(0,0,0,.15);transition:.3s;margin-left:0;z-index:60;
    }
    .nav.active{right:0}
    .nav a{padding:12px 0;border-bottom:1px solid var(--gray-2);font-size:17px}
    .burger{display:flex;z-index:70;order:3}
    .header__inner{justify-content:space-between;gap:16px}
    .header__contacts{margin-left:auto;margin-right:8px}
}
@media(max-width:992px){
    .advantages{grid-template-columns:repeat(2,1fr)}
    .products{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:repeat(2,1fr)}
    .production{grid-template-columns:1fr;gap:36px}
    .footer__inner{grid-template-columns:repeat(2,1fr)}
    .hero h1{font-size:40px}
}
@media(max-width:768px){
    .header__contacts{display:none}
    .topbar__schedule{display:none}
    .topbar__inner{justify-content:center}
    .section{padding:56px 0}
    .section__head h2,.production__content h2{font-size:29px}
    .hero{min-height:auto}
    .hero h1{font-size:32px}
    .hero__lead{font-size:17px}
    .contacts__grid{grid-template-columns:1fr}
    .cta-strip__inner{flex-direction:column;text-align:center}
    .cta-strip h2{font-size:25px}
}
@media(max-width:560px){
    .advantages,.products,.steps{grid-template-columns:1fr}
    .production__media{grid-template-columns:1fr}
    .production__media img:first-child{margin-top:0}
    .footer__inner{grid-template-columns:1fr}
    .hero__buttons .btn{width:100%}
    .logo__text{font-size:18px}
}