*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: Poppins, sans-serif;
    background: #f5f7fb;
    color: #222;
}
header{
    background: #2563eb;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 80px;
}
.logo{
    font-size: 28px;
    font-weight: bold;
}
.logo i{
    margin-right: 8px;
}
nav a{
    color: white;
    text-decoration: none;
    margin-left: 25px;
    font-weight: 500;
}
nav a:hover{
    color: gold;
}
.banner{
    text-align: center;
    padding: 90px 20px;
    background: linear-gradient(135deg, #2563eb, #60a5fa);
    color: white;
}
.banner h1{
    font-size: 55px;
}
.banner p{
    font-size: 22px;
    margin-top: 20px;
}
.buttons{
    margin-top: 35px;
}
button{
    padding: 14px 35px;
    border: none;
    border-radius: 30px;
    font-size: 17px;
    cursor: pointer;
    margin: 10px;
    transition: .3s;
}
button:hover{
    transform: scale(1.08);
}
.btn2{
    background: #1e293b;
    color: white;
}
.courses{
    width:1100px;
    margin: 70px auto;
    text-align: center;
}
.courses h2{
    margin-bottom: 45px;
    font-size: 38px;
}
.card-container{
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}
.card{
    background: white;
    width: 250px;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 8px 20px rgba(0,0,0, .15);
    transition: .3s;
}
.card:hover{
    transform: translate(-10px);
}
.card{
    font-size: 50px;
    margin-bottom: 20px;
}
.html{
    color: #ff5722;
}
.css{
    color: #2196f3;
}
.js{
    color: #f7df1e;
}
.jquery{
    color: #7b1fa2;
}
.card h4{
    margin-bottom: 15px;
}
.card p{
    margin-bottom: 15px;
}
.card a{
    background: #2563eb;
    color: white;
    text-decoration: none;
    padding: 10px 25px;
    border-radius: 25px;
    display: inline-block;
}
.card a:hover{
    background: #1d4ed8;
}
footer{
    margin-top: 80px;
    text-align: center;
    padding: 35px;
    background: #1e293b;
    color: white;
}