html{scroll-behavior:smooth}
@media(max-width:768px){
  .header .container{flex-direction:column;gap:10px;text-align:center}
  .nav{margin-top:10px}
  .nav a{margin:0 10px}
  .hero h1{font-size:28px}
  .hero{padding:40px 0}
}
*{margin:0;padding:0;box-sizing:border-box;font-family:Arial, sans-serif}
.container{width:90%;max-width:1200px;margin:0 auto}

.header{background:#222;color:#fff;padding:1rem 0;position:sticky;top:0;z-index:99}
.header .container{display:flex;justify-content:space-between;align-items:center}
.logo{font-size:24px;font-weight:bold}
.nav a{color:#fff;margin-left:20px;text-decoration:none}
.nav a:hover{color:#f39c12}

.hero{background:#1a2b48;color:#fff;padding:80px 0;text-align:center}
.hero h1{font-size:42px;margin-bottom:20px}
.hero p{font-size:18px;margin-bottom:30px}
.btn{background:#f39c12;color:#fff;padding:12px 28px;border-radius:4px;text-decoration:none}
.btn:hover{background:#e67e22}

section{padding:60px 0}
h2{text-align:center;font-size:30px;margin-bottom:40px;color:#222}

.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}
.product-card{border:1px solid #eee;padding:25px;border-radius:8px;text-align:center}
.product-card h3{margin-bottom:15px;color:#222}

.about{background:#f7f7f7}
.about p{text-align:center;max-width:800px;margin:0 auto;font-size:17px;line-height:1.7}

.contact{text-align:center;background:#f7f7f7}
.contact p{margin:12px 0;font-size:17px}

.contact-form{max-width:600px;margin:40px auto 0;background:#fff;padding:30px;border-radius:10px;box-shadow:0 2px 10px #ddd}
.form-group{margin-bottom:20px}
.form-group input,.form-group textarea{width:100%;padding:12px 15px;border:1px solid #ddd;border-radius:4px;font-size:16px}
.submit-btn{background:#f39c12;color:#fff;border:none;padding:14px 30px;border-radius:4px;font-size:16px;cursor:pointer}
.submit-btn:hover{background:#e67e22}

.footer{background:#222;color:#fff;text-align:center;padding:20px 0}