*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial,Helvetica,sans-serif;
    background:#f5f7fb;
    color:#222;
    line-height:1.6;
}

header{
    background:linear-gradient(135deg,#2563eb,#1d4ed8);
    color:#fff;
    text-align:center;
    padding:50px 20px;
}

header h1{
    font-size:40px;
    margin-bottom:10px;
}

header p{
    font-size:18px;
}

nav{
    background:#fff;
    padding:15px;
    text-align:center;
    box-shadow:0 2px 8px rgba(0,0,0,.1);
}

nav a{
    text-decoration:none;
    color:#222;
    margin:0 15px;
    font-weight:bold;
}

nav a:hover{
    color:#2563eb;
}

.container{
    width:90%;
    max-width:1200px;
    margin:30px auto;
}

.card{
    background:#fff;
    border-radius:15px;
    padding:25px;
    margin-bottom:25px;
    box-shadow:0 5px 15px rgba(0,0,0,.08);
    transition:.3s;
}

.card:hover{
    transform:translateY(-5px);
}

.card h2{
    color:#2563eb;
    margin-bottom:15px;
}

ul{
    padding-left:20px;
}

li{
    margin:10px 0;
}

a{
    color:#2563eb;
}

button{
    background:#2563eb;
    color:#fff;
    border:none;
    padding:12px 20px;
    border-radius:8px;
    cursor:pointer;
}

button:hover{
    background:#1d4ed8;
}

footer{
    background:#111827;
    color:#fff;
    text-align:center;
    padding:20px;
    margin-top:40px;
}

@media(max-width:768px){
    header h1{
        font-size:28px;
    }

    nav a{
        display:block;
        margin:10px 0;
    }
}
.search-box{
    width:90%;
    max-width:600px;
    margin:20px auto;
}

.search-box input{
    width:100%;
    padding:15px;
    border-radius:10px;
    border:2px solid #2563eb;
    font-size:18px;
}
nav{
display:flex;
justify-content:center;
gap:20px;
flex-wrap:wrap;
background:white;
padding:15px;
box-shadow:0 2px 10px rgba(0,0,0,.1);
}

nav a{
padding:10px 15px;
border-radius:8px;
font-weight:bold;
text-decoration:none;
color:#222;
transition:.3s;
}

nav a:hover{
background:#2563eb;
color:white;
}
.tool-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
gap:20px;
margin-top:20px;
}

.tool-card{
background:#fff;
padding:20px;
border-radius:12px;
text-align:center;
text-decoration:none;
color:#222;
box-shadow:0 5px 15px rgba(0,0,0,.1);
transition:.3s;
}

.tool-card:hover{
transform:translateY(-6px);
background:#2563eb;
color:#fff;
}

.tool-card h3{
margin:10px 0;
}