@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

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

body{
    min-height:100vh;
    padding:30px;
    background:linear-gradient(135deg,#667eea,#764ba2);
}

.container{
    width:95%;
    max-width:1400px;
    margin:auto;
}

.navbar{
    display:flex;
    justify-content:center;
    align-items:center;
    gap:12px;
    padding:15px;
    margin-bottom:25px;
    background:#fff;
    border-radius:15px;
    box-shadow:0 5px 15px rgba(0,0,0,.15);
}

.navbar a{
    text-decoration:none;
    background:#f3f4f6;
    color:#333;
    padding:12px 20px;
    border-radius:10px;
    font-weight:600;
    transition:.3s;
}

.navbar a:hover{
    background:#667eea;
    color:#fff;
}

.navbar a.active{
    background:#667eea;
    color:#fff;
}

.card{
    background:#fff;
    padding:35px;
    margin-bottom:30px;
    border-radius:20px;
    box-shadow:0 10px 25px rgba(0,0,0,.15);
}

h1{
    text-align:center;
    color:#333;
    margin-bottom:30px;
}

h2{
    color:#555;
    margin-bottom:25px;
}

form{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
}

input,
select,
textarea{
    width:100%;
    padding:14px;
    border:1px solid #ddd;
    border-radius:12px;
    outline:none;
}

button{
    border:none;
    padding:14px;
    border-radius:12px;
    background:#667eea;
    color:#fff;
    font-weight:bold;
    cursor:pointer;
}

table{
    width:100%;
    border-collapse:collapse;
    margin-top:20px;
}

table thead{
    background:#667eea;
    color:#fff;
}

table th,
table td{
    padding:15px;
    text-align:center;
}

@media(max-width:768px){

    .navbar{
        flex-direction:column;
    }

    .navbar a{
        width:100%;
        text-align:center;
    }

    form{
        grid-template-columns:1fr;
    }

}