body{
    margin:0;
    font-family:Arial, sans-serif;
    background:#f4f7fb;
}

header{
    background:#003366;
    color:white;
    text-align:center;
    padding:30px;
}

main{
    width:90%;
    max-width:1100px;
    margin:auto;
    padding:20px;
}

section{
    background:white;
    padding:20px;
    margin-bottom:20px;
    border-radius:10px;
}

input, select{
    width:100%;
    padding:12px;
    margin:8px 0;
    border:1px solid #ccc;
    border-radius:6px;
}

button{
    background:#003366;
    color:white;
    padding:12px 18px;
    border:none;
    border-radius:6px;
    cursor:pointer;
}

button:hover{
    background:#00509e;
}

table{
    width:100%;
    border-collapse:collapse;
}

th{
    background:#003366;
    color:white;
    padding:12px;
}

td{
    padding:12px;
    border-bottom:1px solid #ddd;
    text-align:center;
}

footer{
    background:#003366;
    color:white;
    text-align:center;
    padding:15px;
}

.status-new{
    color:#ff8800;
    font-weight:bold;
}

.status-contacted{
    color:#0066cc;
    font-weight:bold;
}

.status-follow{
    color:#9933cc;
    font-weight:bold;
}

.status-qualified{
    color:green;
    font-weight:bold;
}

.status-closed{
    color:red;
    font-weight:bold;
}