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

body{
    font-family:Arial,sans-serif;
    background:#f5f7fa;
    color:#1b1b1b;
    line-height:1.6;
}

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

.container{
    width:90%;
    max-width:1280px;
    margin:auto;
}

.site-header{
    background:#081726;
    position:sticky;
    top:0;
    z-index:999;
    padding:20px 0;
}

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

.logo a{
    color:#fff;
    text-decoration:none;
    font-size:30px;
    font-weight:bold;
}

.logo span{
    color:#4ea8de;
}

.nav-menu{
    display:flex;
    gap:30px;
}

.nav-menu a{
    color:#dce4ea;
    text-decoration:none;
    transition:.3s;
}

.nav-menu a:hover{
    color:#4ea8de;
}

.hero{
    background:linear-gradient(rgba(5,15,25,.8), rgba(5,15,25,.8)),
    url('../images/parts.jpg');
    background-size:cover;
    background-position:center;
    min-height:85vh;
    display:flex;
    align-items:center;
    color:#fff;
}

.hero-content h1{
    font-size:64px;
    line-height:1.1;
    max-width:850px;
}

.hero-content p{
    margin-top:24px;
    max-width:720px;
    font-size:18px;
    color:#d8e2eb;
}

.hero-buttons{
    display:flex;
    gap:16px;
    margin-top:32px;
}

.btn-primary,
.btn-secondary{
    padding:14px 28px;
    border-radius:6px;
    text-decoration:none;
    display:inline-block;
}

.btn-primary{
    background:#4ea8de;
    color:#fff;
}

.btn-secondary{
    border:1px solid rgba(255,255,255,.3);
    color:#fff;
}

.section-title{
    text-align:center;
    margin-bottom:60px;
}

.section-title h2{
    font-size:42px;
    margin-bottom:12px;
}

.section-title p{
    max-width:720px;
    margin:auto;
    color:#65727f;
}

.services,
.about,
.contact{
    padding:100px 0;
}

.image-showcase{
    padding:40px 0;
    background:#fff;
}

.image-showcase img{
    border-radius:14px;
}

.services-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:28px;
}

.card{
    background:#fff;
    padding:36px;
    border-radius:14px;
    box-shadow:0 10px 30px rgba(0,0,0,.06);
}

.card h3{
    margin-bottom:14px;
}

.about{
    background:#fff;
}

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

.about-grid img{
    border-radius:14px;
}

.about-content h2{
    font-size:42px;
    margin-bottom:24px;
}

.about-content p{
    margin-bottom:18px;
}

.about-content ul{
    margin-top:24px;
    padding-left:20px;
}

.quality{
    background:#081726;
    color:#fff;
    padding:100px 0;
}

.light h2,
.light p{
    color:#fff;
}

.stats-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:24px;
}

.stat-card{
    background:rgba(255,255,255,.05);
    padding:40px;
    text-align:center;
    border-radius:14px;
}

.stat-card h3{
    font-size:48px;
    color:#4ea8de;
}

.contact-form{
    max-width:760px;
    margin:auto;
}

.form-group{
    margin-bottom:20px;
}

.contact-form input,
.contact-form textarea{
    width:100%;
    padding:16px;
    border:1px solid #d0d7df;
    border-radius:8px;
    font-size:16px;
}

.contact-form textarea{
    min-height:180px;
}

.success-message{
    background:#d7f5df;
    color:#0f5b22;
    padding:16px;
    margin-bottom:20px;
    border-radius:8px;
    text-align:center;
}

.site-footer{
    background:#050f18;
    color:#c5ced7;
    padding:80px 0 30px;
}

.footer-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:40px;
}

.site-footer h3,
.site-footer h4{
    color:#fff;
    margin-bottom:16px;
}

.site-footer ul{
    list-style:none;
}

.site-footer li{
    margin-bottom:10px;
}

.copyright{
    text-align:center;
    margin-top:50px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.08);
}

@media(max-width:992px){
    .about-grid{
        grid-template-columns:1fr;
    }

    .hero-content h1{
        font-size:46px;
    }
}

@media(max-width:768px){
    .nav-menu{
        display:none;
    }

    .hero-content h1{
        font-size:36px;
    }
}