.guestbook-generator {
    margin: 2rem 0;
    padding: 1.5rem;
    border: 1px solid #ccc;
    background-color: var(--post-background-color);
    max-width: 100%;
    box-sizing: border-box;
}

.guestbook-generator form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    box-sizing: border-box;
}

.guestbook-generator div {
    width: 100%;
    box-sizing: border-box;
}

.guestbook-generator label {
    font-size: 0.9em;
    display: block;
}

.guestbook-generator input,
.guestbook-generator textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    font-size: 0.9em;
    background: var(--background-color);
    color: var(--text-color);
    box-sizing: border-box;
    margin: 0;
}

.guestbook-generator textarea {
    min-height: 80px;
    resize: vertical;
    font-family: inherit;
}

.guestbook-generator button[type="submit"] {
    padding: 8px;
    background: var(--post-background-color);
    color: var(--text-color);
    border: 1px solid #ccc;
    cursor: pointer;
    font-size: 0.9em;
    width: 100%;
    box-sizing: border-box;
    margin: 0;
}

#guestbook-result {
    margin-top: 15px;
    padding: 8px;
    background: var(--post-background-color);
    border: 1px solid #ccc;
    font-family: monospace;
    white-space: pre-wrap;
    display: none;
    font-size: 0.9em;
    width: 100%;
    box-sizing: border-box;
}

#copy-json {
    margin-top: 10px;
    display: none;
    width: 100%;
    padding: 8px;
    background: var(--post-background-color);
    color: var(--text-color);
    border: 1px solid #ccc;
    font-size: 0.9em;
    cursor: pointer;
    box-sizing: border-box;
}

.guestbook-generator button:hover,
#copy-json:hover {
    background: var(--bg-hover);
}

/* Dark mode support */
body.dark-mode .guestbook-generator {
    border-color: #444;
}

body.dark-mode .guestbook-generator input,
body.dark-mode .guestbook-generator textarea,
body.dark-mode .guestbook-generator button,
body.dark-mode #guestbook-result,
body.dark-mode #copy-json {
    border-color: #444;
}