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

body{
    background:#f5f7fb;
    color:#222;
}


/* Header */

header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 6%;
    background:white;
    box-shadow:0 3px 15px rgba(0,0,0,0.1);
    flex-wrap:wrap;
}

.logo{
    font-size:28px;
    font-weight:bold;
    color:#0066ff;
}


.search input{
    padding:10px;
    border:1px solid #ddd;
    border-radius:20px;
}

.search button{
    padding:10px 15px;
    border:none;
    background:#0066ff;
    color:white;
    border-radius:20px;
}


nav a{
    text-decoration:none;
    margin:10px;
    color:#333;
    font-weight:bold;
}


/* Hero */

.hero{
    text-align:center;
    padding:80px 20px;
    background:linear-gradient(135deg,#0066ff,#00c6ff);
    color:white;
}

.hero h1{
    font-size:45px;
    margin-bottom:20px;
}

.hero p{
    font-size:20px;
    margin-bottom:30px;
}


.main-btn{
    padding:15px 35px;
    border:none;
    border-radius:30px;
    background:white;
    color:#0066ff;
    font-size:16px;
}


/* Cards */

.cards{
    display:flex;
    justify-content:center;
    gap:25px;
    padding:50px 5%;
    flex-wrap:wrap;
}

.card{
    background:white;
    width:300px;
    padding:30px;
    border-radius:15px;
    box-shadow:0 5px 20px rgba(0,0,0,0.1);
}

.card h2{
    color:#0066ff;
    margin-bottom:15px;
}


/* Calculator */

.calculator{
    background:white;
    margin:30px auto;
    padding:30px;
    width:90%;
    max-width:500px;
    text-align:center;
    border-radius:15px;
}

.calculator input{
    width:90%;
    padding:12px;
    margin:10px;
}

.calculator button{
    padding:12px 25px;
    background:#0066ff;
    color:white;
    border:none;
    border-radius:20px;
}


/* Contact */

.contact{
    text-align:center;
    padding:40px;
}


/* Footer */

footer{
    background:#111;
    color:white;
    text-align:center;
    padding:20px;
}


/* Mobile */

@media(max-width:768px){

header{
    flex-direction:column;
    gap:15px;
}

.hero h1{
    font-size:32px;
}

}