*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    background:#050505;
    color:#fff;
    font-family:Arial, Helvetica, sans-serif;
    line-height:1.6;
}

a{
    text-decoration:none;
    color:inherit;
}

img{
    max-width:100%;
    display:block;
}

.container{
    width:95%;
    max-width:1400px;
    margin:auto;
}

/* HEADER */

.header{
    position:sticky;
    top:0;
    z-index:1000;
    background:rgba(0,0,0,.95);
    backdrop-filter:blur(10px);
    border-bottom:1px solid #222;
}

.header-row{
    position:relative;
}

.header .container{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 0;
}

.logo-block{
    display:flex;
    align-items:center;
    gap:15px;
}

.logo{
    width:70px;
}

.company-name{
    color:#ffb400;
    font-size:22px;
    font-weight:700;
}

.company-subtitle{
    color:#aaa;
    font-size:14px;
}

.phones{
    display:flex;
    flex-direction:column;
    align-items:flex-end;
    gap:5px;
}

.phones a{
    color:white;
    font-weight:700;
}

/* HERO */

.hero{
    padding:80px 0;
}

.hero-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:60px;
    align-items:center;
}

.badge{
    display:inline-block;
    border:1px solid #00d8ff;
    color:#00d8ff;
    padding:10px 20px;
    border-radius:30px;
    margin-bottom:25px;
}

.hero h1{
    font-size:64px;
    line-height:1.1;
    margin-bottom:25px;
}

.hero p{
    color:#bdbdbd;
    font-size:22px;
    max-width:700px;
}

.hero-buttons{
    display:flex;
    gap:20px;
    margin-top:35px;
}

.btn-yellow{
    background:#ffb400;
    color:#000;
    padding:18px 35px;
    border-radius:10px;
    font-weight:700;
}

.btn-yellow:hover{
    background:#ffc63a;
}

.btn-outline{
    border:1px solid #00d8ff;
    color:#00d8ff;
    padding:18px 35px;
    border-radius:10px;
}

.hero-stats{
    display:flex;
    gap:50px;
    margin-top:50px;
}

.hero-stats span{
    display:block;
    color:#ffb400;
    font-size:36px;
    font-weight:700;
}

.hero-right{
    position:relative;
}

.hero-right img{
    width:100%;
}

/* НАПРАВЛЕНИЯ */

.directions{
    padding:80px 0;
}

.directions h2{
    text-align:center;
    font-size:48px;
    margin-bottom:50px;
}

.directions-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:25px;
}

.direction-card{
    background:#0b0b0b;
    border:1px solid #222;
    border-radius:20px;
    overflow:hidden;
    transition:.3s;
}

.direction-card:hover{
    transform:translateY(-8px);
    border-color:#ffb400;
}

.direction-card img{
    width:100%;
    height:260px;
    object-fit:cover;
}

.direction-content{
    padding:25px;
}

.direction-content h3{
    color:#00d8ff;
    font-size:24px;
    margin-bottom:15px;
}

.direction-content p{
    color:#aaa;
}

/* СЕКЦИИ */

.catalog,
.projects,
.lead-form{
    padding:90px 0;
}

.section-title{
    text-align:center;
    font-size:48px;
    margin-bottom:50px;
}

/* КНОПКА WHATSAPP */

.whatsapp-btn{
    position:fixed;
    right:25px;
    bottom:25px;
    width:70px;
    height:70px;
    background:#25D366;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:34px;
    box-shadow:0 0 20px rgba(37,211,102,.5);
    z-index:999;
}

.header-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:40px;
}

.main-menu{
    display:flex;
    align-items:center;
    gap:35px;
}

.main-menu a{
    color:#ddd;
    font-size:16px;
    font-weight:600;
    position:relative;
    transition:.3s;
}

.main-menu a:hover{
    color:#ffb400;
}

.main-menu a:after{
    content:'';
    position:absolute;
    left:0;
    bottom:-6px;
    width:0;
    height:2px;
    background:#ffb400;
    transition:.3s;
}

.main-menu a:hover:after{
    width:100%;
}

@media(max-width:1100px){

    .main-menu{
        display:none;
    }

}

/* FOOTER */

.footer{
    border-top:1px solid #222;
    padding:30px 0;
    text-align:center;
    color:#888;
}

/* MOBILE */

@media(max-width:1200px){

    .directions-grid{
        grid-template-columns:repeat(2,1fr);
    }

}

@media(max-width:900px){

    .hero-grid{
        grid-template-columns:1fr;
    }

    .hero h1{
        font-size:48px;
    }

    .hero-stats{
        flex-wrap:wrap;
    }

}

@media(max-width:600px){

    .directions-grid{
        grid-template-columns:1fr;
    }

    .hero h1{
        font-size:38px;
    }

    .hero-buttons{
        flex-direction:column;
    }

    .phones{
        display:none;
    }

}

/* КАТАЛОГ */

.catalog-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:25px;
}

.product-card{
    background:#0b0b0b;
    border:1px solid #222;
    border-radius:20px;
    overflow:hidden;
    transition:.3s;
}

.product-card:hover{
    transform:translateY(-8px);
    border-color:#ffb400;
}

.product-image{
    background:#fff;
    padding:20px;
    height:260px;
    display:flex;
    align-items:center;
    justify-content:center;
}

.product-image img{
    max-height:220px;
    object-fit:contain;
}

.product-content{
    padding:25px;
}

.product-content h3{
    font-size:22px;
    margin-bottom:15px;
    min-height:60px;
}

.product-specs{
    color:#aaa;
    margin-bottom:20px;
}

.product-specs div{
    margin-bottom:6px;
}

.old-price{
    color:#777;
    text-decoration:line-through;
    margin-bottom:8px;
}

.price{
    color:#00d8ff;
    font-size:32px;
    font-weight:700;
    margin-bottom:20px;
}

.product-btn{
    display:block;
    text-align:center;
    background:#ffb400;
    color:#000;
    padding:14px;
    border-radius:10px;
    font-weight:700;
}

.product-btn:hover{
    background:#ffc63a;
}

@media(max-width:1200px){

    .catalog-grid{
        grid-template-columns:repeat(2,1fr);
    }

}

@media(max-width:700px){

    .catalog-grid{
        grid-template-columns:1fr;
    }

}

/* ПРОЕКТЫ */

.projects-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:25px;
}

.project-card{
    background:#0b0b0b;
    border:1px solid #222;
    border-radius:20px;
    overflow:hidden;
    transition:.3s;
}

.project-card:hover{
    transform:translateY(-8px);
    border-color:#ffb400;
}

.project-image{
    height:280px;
    overflow:hidden;
}

.project-image img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:.5s;
}

.project-card:hover .project-image img{
    transform:scale(1.08);
}

.project-content{
    padding:25px;
}

.project-content h3{
    font-size:24px;
    margin-bottom:10px;
}

.project-city{
    color:#00d8ff;
    margin-bottom:12px;
}

.project-description{
    color:#aaa;
    line-height:1.6;
}

@media(max-width:1200px){

    .projects-grid{
        grid-template-columns:repeat(2,1fr);
    }

}

@media(max-width:700px){

    .projects-grid{
        grid-template-columns:1fr;
    }

}

/* ФОРМА */

.lead-box{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:40px;
    background:#0b0b0b;
    border:1px solid #222;
    border-radius:25px;
    padding:50px;
}

.lead-left h2{
    font-size:42px;
    margin-bottom:20px;
}

.lead-left p{
    color:#aaa;
    font-size:18px;
}

.lead-right form{
    display:flex;
    flex-direction:column;
    gap:15px;
}

.lead-right input,
.lead-right textarea{
    background:#111;
    border:1px solid #333;
    color:#fff;
    padding:18px;
    border-radius:12px;
    width:100%;
}

.lead-right textarea{
    min-height:140px;
    resize:vertical;
}

.lead-right button{
    background:#ffb400;
    color:#000;
    border:none;
    padding:18px;
    border-radius:12px;
    font-size:18px;
    font-weight:700;
    cursor:pointer;
}

.lead-right button:hover{
    background:#ffc63a;
}

.success-message{
    background:#14532d;
    border:1px solid #22c55e;
    padding:15px;
    border-radius:12px;
    margin-bottom:20px;
}

@media(max-width:900px){

    .lead-box{
        grid-template-columns:1fr;
    }

}

/* БРЕНДЫ */

.brands{
    padding:80px 0;
}

.brands .section-title{
    margin-bottom:50px;
}

.brands-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:40px 30px;
    align-items:center;
}

.brand-card{
    background:transparent;
    border:none;
    padding:10px;

    display:flex;
    align-items:center;
    justify-content:center;

    min-height:90px;
}

.brand-card img{
    width:100%;
    max-width:220px;
    max-height:80px;
    object-fit:contain;

    filter:grayscale(100%);
    opacity:.75;

    transition:.3s;
}

.brand-card:hover img{
    filter:none;
    opacity:1;
    transform:scale(1.08);
}

@media(max-width:992px){

    .brands-grid{
        grid-template-columns:repeat(3,1fr);
        gap:30px 20px;
    }

}

@media(max-width:768px){

    .brands-grid{
        grid-template-columns:repeat(2,1fr);
        gap:25px 15px;
    }

    .brand-card img{
        max-width:150px;
        max-height:60px;
    }

}

@media(max-width:480px){

    .brands{
        padding:60px 0;
    }

    .brands-grid{
        grid-template-columns:repeat(2,1fr);
        gap:20px 10px;
    }

    .brand-card{
        min-height:70px;
    }

    .brand-card img{
        max-width:120px;
        max-height:45px;
    }

}

/* МОБИЛЬНОЕ МЕНЮ */

.burger{
    display:none;
    background:none;
    border:none;
    color:#fff;
    font-size:32px;
    cursor:pointer;
}

.mobile-menu{
    display:none;
}

.mobile-menu.show{
    display:flex;
}

@media(max-width:1100px){

    .main-menu{
        display:none;
    }

    .burger{
        display:block;
    }

    .header-row{
        position:relative;
    }

    .mobile-menu{
        position:fixed;
        top:90px;
        left:0;
        width:100%;
        background:#050505;
        flex-direction:column;
        border-top:1px solid #222;
        z-index:9999;
    }

    .mobile-menu a{
        padding:18px 25px;
        border-bottom:1px solid #111;
        color:#fff;
        font-size:18px;
    }

    .mobile-menu a:hover{
        background:#111;
        color:#ffb400;
    }

}

@media(max-width:768px){

    .logo{
        width:50px;
    }

    .company-name{
        font-size:16px;
    }

    .company-subtitle{
        font-size:12px;
    }

    .phones{
        display:flex;
        font-size:13px;
        gap:2px;
    }

}

/* КАЛЬКУЛЯТОР */

.calculator{
    padding:90px 0;
}

.calculator-box{

    background:#0b0b0b;

    border:1px solid #222;

    border-radius:30px;

    padding:60px;

}

.calculator-box h2{
    font-size:48px;
    margin-bottom:15px;
}

.calculator-box p{
    color:#aaa;
    margin-bottom:40px;
}

.calculator-box input[type=range]{
    width:100%;
    margin-bottom:40px;
}

.calc-area{
    font-size:32px;
    margin-bottom:20px;
}

.calc-area span{
    color:#00d8ff;
    font-weight:700;
}

.calc-result{
    font-size:52px;
    font-weight:700;
    color:#ffb400;
    line-height:1.2;
    min-height:100px;
}

.calc-result small{
    display:block;
    margin-top:10px;
    font-size:22px;
    color:#aaa;
    font-weight:400;
}
@media(max-width:768px){

    .calculator-box{
        padding:30px;
    }

    .calculator-box h2{
        font-size:32px;
    }

    .calc-area{
        font-size:24px;
    }

    .calc-result{
        font-size:36px;
    }

}

.hero{
    background:
    linear-gradient(
        90deg,
        rgba(0,0,0,.92) 0%,
        rgba(0,0,0,.75) 40%,
        rgba(0,0,0,.35) 100%
    ),
    url('images/hero-girl.jpg');

    background-size:cover;
    background-position:center;
}

.hero{
    min-height:800px;
}