body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background: #35424a;
    color: #ffffff;
    padding: 10px 0;
    text-align: center;
}

h1 {
    margin: 0;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

nav {
    margin: 20px 0;
}

nav a {
    color: #35424a;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
}

nav a:hover {
    background: #e8491d;
    color: #ffffff;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.table th, .table td {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
}

.table th {
    background-color: #35424a;
    color: white;
}

.button {
    background-color: #35424a;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.button:hover {
    background-color: #e8491d;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #dddddd;
    border-radius: 5px;
}