*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Arial,sans-serif;
}

body{
background:#f5fbff;
color:#333;
line-height:1.8;
}

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

.header{
background:#ffffff;
padding:20px 0;
box-shadow:0 2px 10px rgba(0,0,0,.05);
position:sticky;
top:0;
z-index:100;
}

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

.logo{
font-size:28px;
font-weight:bold;
color:#4da6ff;
}

nav a{
margin-left:20px;
text-decoration:none;
color:#333;
transition:.3s;
}

nav a:hover,
nav a.active{
color:#4da6ff;
}

.page-banner{
background:linear-gradient(135deg,#7ec8ff,#d9f1ff);
padding:100px 0;
text-align:center;
}

.page-banner h1{
font-size:42px;
margin-bottom:15px;
}

.product-grid,
.team-grid,
.contact-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:30px;
margin-top:40px;
}

.card,
.team-card,
.contact-item{
background:#fff;
padding:30px;
border-radius:14px;
box-shadow:0 5px 20px rgba(0,0,0,.05);
transition:.3s;
}

.card:hover,
.team-card:hover,
.contact-item:hover{
transform:translateY(-5px);
}

.team-card img{
width:100%;
border-radius:50%;
margin-bottom:20px;
}

.video-box iframe{
width:100%;
height:500px;
border:none;
border-radius:12px;
margin-top:30px;
}

form{
display:flex;
flex-direction:column;
gap:20px;
margin-top:30px;
}

input,
textarea{
padding:15px;
border:1px solid #ddd;
border-radius:8px;
font-size:16px;
}

button{
background:#4da6ff;
color:#fff;
border:none;
padding:15px;
border-radius:8px;
cursor:pointer;
font-size:16px;
transition:.3s;
}

button:hover{
background:#3399ff;
}

.footer{
background:#0f172a;
color:#fff;
text-align:center;
padding:30px 0;
margin-top:80px;
}

@media(max-width:768px){

.page-banner h1{
font-size:32px;
}

.nav{
flex-direction:column;
}

nav{
margin-top:15px;
}

nav a{
margin:0 10px;
}

.video-box iframe{
height:260px;
}

}