body{
    margin:0;
    font-family:Arial, Helvetica, sans-serif;
    background:linear-gradient(135deg,#e3f2fd,#bbdefb);
}

/* top bar */
.topbar{
    background:#1565c0;
    color:white;
    padding:15px 25px;
    font-size:20px;
    font-weight:bold;
}

/* container */
.box{
    background:white;
    max-width:900px;
    margin:30px auto;
    padding:25px;
    border-radius:10px;
    box-shadow:0 5px 20px rgba(0,0,0,0.15);
}

/* inputs */
input, textarea, select{
    width:100%;
    padding:10px;
    margin-top:8px;
    margin-bottom:15px;
    border-radius:6px;
    border:1px solid #ccc;
    font-size:16px;
}

textarea{
    min-height:120px;
}

/* buttons */
button{
    background:#1565c0;
    color:white;
    border:none;
    padding:10px 18px;
    border-radius:6px;
    cursor:pointer;
    font-size:15px;
}

button:hover{
    background:#0d47a1;
}

/* tables */
table{
    width:100%;
    border-collapse:collapse;
    margin-top:15px;
}

th,td{
    padding:10px;
    border-bottom:1px solid #ddd;
}

tr:hover{
    background:#f5f5f5;
}