body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    color: #333;
}
.container {
    width: 80%;
    margin: 40px auto;
    background: #fff;
    padding: 20px;
    box-shadow: 0 0 10px #ccc;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
th, td {
    padding: 10px;
    border: 1px solid #aaa;
    text-align: center;
}
th {
    background-color: #005aa7;
    color: white;
}
.btn, .btn-logout {
    text-decoration: none;
    padding: 10px 15px;
    margin-right: 10px;
    background-color: #005aa7;
    color: white;
    border-radius: 5px;
}
.login-box {
    width: 300px;
    margin: 100px auto;
    background: white;
    padding: 20px;
    box-shadow: 0 0 10px #ccc;
}
input[type="text"], input[type="password"], input[type="date"] {
    width: 100%;
    padding: 8px;
    margin: 10px 0;
}
input[type="submit"] {
    width: 100%;
    padding: 10px;
    background: #005aa7;
    color: white;
    border: none;
}
.error {
    color: red;
}
.filter-form {
    margin-bottom: 20px;
}
.filter-form label {
    margin-right: 10px;
}