body {
    font-family: Arial;
    margin: 20px;
    background-color: #000000;
    color: #333333;
}
.guestbook-container {
    max-width: 500px;
    margin: auto;
    background: #000000;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
form {
    margin-bottom: 20px;
}
label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}
input[type="text"], textarea {
    width: 100%;
    padding: 25px;
    margin-top: 25px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box; /* Ensures padding doesn't affect total width */
}
textarea {
    resize: vertical;
}
input[type="submit"] {
    background-color: #ff0000;
    color: white;
    padding: 10px 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}
input[type="submit"]:hover {
    background-color: indigo;
}
hr {
    border: 0;
    height: 1px;
    background: #ccc;
    margin: 20px 0;
}
.entry {
    border-bottom: 10px solid #eee;
    padding-bottom: 25px;
    margin-bottom: 25px;
}
.entry:last-child {
    border-bottom: none;
}
.entry .message {
    margin: 10px 0 0;
    padding-left: 10px;
    border-left: 3px solid #ff0000;
    color: #FF0000;
}