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

body{
    background:#f4f7fb;
    color:#333;
    line-height:1.6;
}

.container{
    width:90%;
    max-width:1100px;
    margin:auto;
}

header{
    background:#0d6efd;
    color:white;
    text-align:center;
    padding:70px 20px;
}

header h1{
    font-size:48px;
    margin-bottom:10px;
}

header p{
    font-size:20px;
    margin-bottom:25px;
}

.btn{
    display:inline-block;
    text-decoration:none;
    background:white;
    color:#0d6efd;
    padding:12px 25px;
    margin:10px;
    border-radius:30px;
    font-weight:bold;
    transition:.3s;
}

.btn:hover{
    background:#222;
    color:white;
}

section{
    padding:60px 0;
}

section h2{
    text-align:center;
    margin-bottom:35px;
    color:#0d6efd;
    font-size:34px;
}

.card{
    background:white;
    padding:25px;
    border-radius:10px;
    box-shadow:0 5px 15px rgba(0,0,0,.1);
    margin-bottom:25px;
}

.skills{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:15px;
}

.skills span{
    background:#0d6efd;
    color:white;
    padding:12px 18px;
    border-radius:25px;
    font-weight:bold;
}

ul{
    margin-left:25px;
}

li{
    margin-bottom:10px;
}

a{
    color:#0d6efd;
    text-decoration:none;
}

a:hover{
    text-decoration:underline;
}

footer{
    background:#222;
    color:white;
    text-align:center;
    padding:20px;
    margin-top:30px;
}

@media(max-width:768px){

header h1{
    font-size:34px;
}

header p{
    font-size:17px;
}

section h2{
    font-size:28px;
}

.btn{
    display:block;
    width:220px;
    margin:10px auto;
}

.skills{
    justify-content:center;
}

}