/* ==========================
   RESET
========================== */

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

html{
    scroll-behavior:smooth;
}

body{
    font-family:'Segoe UI',sans-serif;
    background:#f7f9fc;
    color:#222;
    line-height:1.6;
}

.container{
    width:90%;
    max-width:1200px;
    margin:auto;
}

/* ==========================
   HEADER
========================== */

/* ====== Верхнее меню ====== */

.header-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    position:relative;
}

.navbar{
    background:#0f6cab;
}

.menu{
    display:flex;
    justify-content:center;
    list-style:none;
    margin:0;
    padding:0;
}

.menu li{
    margin:0;
}

.menu a{
    display:block;
    color:#fff;
    text-decoration:none;
    padding:18px 22px;
    transition:.3s;
}

.menu a:hover{
    background:#fff;
}

/* ===== Бургер ===== */

.burger{
    display:none;
    width:42px;
    height:42px;
    border:none;
    background:none;
    cursor:pointer;
    flex-direction:column;
    justify-content:center;
    gap:6px;
}

.burger span{
    display:block;
    height:3px;
    background:#333;
    border-radius:3px;
}




/* ==========================
   HERO
========================== */

.hero{
    background:
    linear-gradient(rgba(0,0,0,.55),rgba(0,0,0,.55)),
    url(images/heating1.jpg);
    background-size:cover;
    background-position:center;
    text-align:center;
    color:#fff;
    padding:120px 20px;
}

.hero h1{
    font-size:56px;
    margin-bottom:20px;
}

.hero p{
    max-width:800px;
    margin:auto;
    font-size:22px;
    margin-bottom:35px;
}

.hero-buttons{
    margin-top:30px;
}

.hero-buttons a{
    display:inline-block;
    text-decoration:none;
    padding:15px 35px;
    border-radius:50px;
    margin:10px;
    font-weight:700;
    transition:.3s;
}

.btn-call{
    background:#ff9800;
    color:#fff;
}

.btn-price{
    background:#fff;
    color:#0d6efd;
}

.hero-buttons a:hover{
    transform:translateY(-4px);
}

/* ==========================
   ADVANTAGES
========================== */

.advantages{
    padding:80px 0;
}

.adv-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:25px;
}

.adv-card{
    background:#fff;
    padding:35px;
    border-radius:20px;
    text-align:center;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
    transition:.3s;
}

.adv-card:hover{
    transform:translateY(-8px);
}

.adv-card i{
    font-size:45px;
    color:#3b6097;
    margin-bottom:15px;
}

.adv-card h3{
    margin-bottom:10px;
}

/* ==========================
   SERVICES
========================== */

.services{
    padding:80px 0;
}

.section-title{
    text-align:center;
    font-size:40px;
    margin-bottom:50px;
}

.services-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:25px;
}

.service-card{
    background:#fff;
    padding:35px;
    border-radius:20px;
    text-align:center;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
    transition:.3s;
}

.service-card:hover{
    transform:translateY(-8px);
}

/* ==========================
   PRICE TABLE
========================== */

.prices{
    padding:80px 0;
    background:#eef4fb;
}

.price-table{
    width:100%;
    max-width:900px;
    margin:auto;
    border-collapse:collapse;
    background:#fff;
    overflow:hidden;
    border-radius:20px;
    box-shadow:0 10px 35px rgba(0,0,0,.08);
}

.price-table th{
    background:#3b6097;
    color:#fff;
    padding:20px;
    text-align:left;
}

.price-table td{
    padding:18px;
    border-bottom:1px solid #eee;
}

.price-table tr:hover{
    background:#f5f9ff;
}

/* ==========================
   ORDER FORM
========================== */

.order-form{
    background:#3b6097;
    color:#fff;
    text-align:center;
    padding:80px 20px;
}

.order-form h2{
    margin-bottom:30px;
}

.order-form form{
    max-width:600px;
    margin:auto;
}

.order-form input,
.order-form textarea{
    width:100%;
    padding:15px;
    margin-bottom:15px;
    border:none;
    border-radius:10px;
}

.order-form button{
    width:100%;
    padding:15px;
    border:none;
    background:#ff9800;
    color:#fff;
    border-radius:10px;
    font-size:18px;
    font-weight:700;
    cursor:pointer;
}

.order-form button:hover{
    opacity:.9;
}

/* ==========================
   FAQ
========================== */

.faq{
    padding:80px 0;
}

.faq details{
    background:#fff;
    padding:20px;
    margin-bottom:15px;
    border-radius:15px;
    box-shadow:0 5px 15px rgba(0,0,0,.05);
}

.faq summary{
    cursor:pointer;
    font-weight:700;
}

/* ==========================
   FOOTER
========================== */

.footer{
    background:#111827;
    color:#fff;
}

.footer-content{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:40px;
    padding:60px 0;
}

.footer h3{
    margin-bottom:15px;
}

.footer a{
    display:block;
    color:#d1d5db;
    text-decoration:none;
    margin-bottom:10px;
}

.footer a:hover{
    color:#fff;
}

.footer-bottom{
    text-align:center;
    padding:20px;
    border-top:1px solid rgba(255,255,255,.1);
    color:#9ca3af;
}

/* ==========================
   FLOAT PHONE
========================== */

.phone-fixed{
    position:fixed;
    right:25px;
    bottom:25px;
    width:65px;
    height:65px;
    border-radius:50%;
    background:#25d366;
    color:#fff;
    display:flex;
    justify-content:center;
    align-items:center;
    font-size:26px;
    text-decoration:none;
    box-shadow:0 5px 20px rgba(0,0,0,.25);
    z-index:999;
}


 




.reviews-hero{
    position:relative;
    min-height:600px;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    color:#fff;

    background:
    linear-gradient(
    rgba(0,0,0,.55),
    rgba(0,0,0,.55)),
    url(images/heating1.jpg);

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

.hero-content{
    position:relative;
    z-index:2;
    max-width:900px;
    padding:20px;
}

.reviews-hero h1{
    font-size:58px;
    margin-bottom:20px;
}

.reviews-hero p{
    font-size:22px;
    margin-bottom:30px;
}

.rating-block{
    margin:30px 0;
}

.stars{
    font-size:36px;
    color:#ffd700;
}

.reviews-grid{
    max-width:1200px;
    margin:60px auto;
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
    gap:30px;
    padding:20px;
}

.review-card{
    background:#fff;
    border-radius:20px;
    padding:30px;
    box-shadow:0 15px 35px rgba(0,0,0,.1);
    transition:.3s;
}

.review-card:hover{
    transform:translateY(-8px);
}

.review-stars{
    color:#ffb400;
    font-size:22px;
    margin:15px 0;
}

.stats-section{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
    gap:20px;
    padding:50px;
    background:#fff;
}

.stat-card{
    text-align:center;
}

.stat-card span{
    font-size:42px;
    font-weight:700;
    color:#0077ff;
}

.review-cta{
    text-align:center;
    padding:80px 20px;
    background:linear-gradient(135deg,#0077ff,#00bfff);
    color:#fff;
}

.cta-btn,
.hero-call-btn{
    display:inline-block;
    margin-top:20px;
    padding:15px 35px;
    border-radius:50px;
    background:#ff9800;
    color:#fff;
    text-decoration:none;
    font-weight:700;
}


@media(max-width:768px){

.phone{
    display:none;
}

.burger{
    display:flex;
}

.header-top{
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.navbar{
    display:none;
    width:100%;
}

.navbar.active{
    display:block;
}

.menu{
    display:flex;
    flex-direction:column;
    width:100%;
}

.menu li{
    width:100%;
}

.menu a{
    display:block;
    width:100%;
    padding:15px;
}

}