body {
    font-family: Arial, sans-serif;
    background-color: #f4f6f8;
    text-align: center;
    margin: 0;
}

.container {
    width: 80%;
    margin: auto;
    margin-top: 30px;
}

/* navigation buttons */
a {
    text-decoration: none;
    padding: 8px 14px;
    background-color: #3498db;
    color: white;
    border-radius: 5px;
    margin: 5px;
    display: inline-block;
}

a:hover {
    background-color: #2980b9;
}

/* tables */
table {
    margin: 20px auto;
    border-collapse: collapse;
    width: 80%;
    background: white;
}

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

th {
    background-color: #3498db;
    color: white;
}

/* form styling */
.form-container {
    background-color: white;
    padding: 20px 30px;
    border-radius: 8px;
    width: 400px;
    margin: 50px auto;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    text-align: left;
}

.form-container label {
    display: block;
    margin: 10px 0 5px;
    font-weight: bold;
}

.form-container input,
.form-container select {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.form-container button {
    display: block;
    margin: 15px auto 0;
    padding: 10px 20px;
    width: 50%;
    background-color: #2ecc71;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.form-container button:hover {
    background-color: #27ae60;
}