*{
    margin:0;
    padding:0;
    font-family:sans-serif;
}
.banner{
    width:100%;
    height:100vh;
    background-image:url(pexels-simon-berger-1323550.jpg);
    background-size:cover;
    background-position: center;
}

.circular-image {
    width: 120px; 
    height: 120px;
    border-radius: 50%; 
    overflow: hidden; 
    cursor:pointer;
  }
.circular-image img{
    width:100%;
    height:auto;
    display: block;
}

.navbar{
    width:85%;
    margin:auto;
    padding:35px 0;
    display:flex;
    align-items: center;
    justify-content: space-between;
}

.navbar ul li{
    list-style: none;
    display:inline-block;
    font-weight: bold;
    margin:0 20px;
    position: relative;
}
.navbar ul li a{
    text-decoration: none;
    color:black;
    text-transform: uppercase;
}
.navbar ul li::after{
    content:'';
    height:3px;
    width:0;
    background:#014397;
    position: absolute;
    left:0;
    bottom:-10px;
    transition:0.5s;
}
.navbar ul li:hover::after{
    width:100%;
}

.content{
    width:100%;
    position:absolute;
    top:29%;
    transform:translateY(-50%);
    text-align:center;
}
.content h1{
    font-size:40px;
    margin-top:20px;
}
.card-container{
    display:flex;
    justify-content:center;
    flex-wrap: wrap;
    margin-top: 18px; 
}
.card{
    width:250px;
    height:360px;
    background-color: #f0f0f0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow:0px 2px 4px rgba(0,0,0,0.2);
    margin:20px;
}
.card img{
    width:100%;
    height:130px;
}
.card-content{
    padding:16px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.card-content h3{
    font-size:18px;
    margin-bottom: 8px;
}
.card-content p{
    color:#666;
    font-size:15px;
    line-height: 1.3;
}
.card-content .btn{
    display: inline-block;
    padding:8px 16px;
    background-color: #014397;
    text-decoration: none;
    border-radius: 4px;
    top:85%;
    color:#fff;
    position:absolute;

}
.card-content .btn:hover{
    background-color: black;
}