body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: var(--tg-theme-bg-color);
    color: var(--tg-theme-text-color);
}

.message-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.message-input {
    padding: 10px;
    border: 1px solid var(--tg-theme-button-color);
    border-radius: 5px;
    background-color: var(--tg-theme-secondary-bg-color);
    color: var(--tg-theme-text-color);
}

.submit-button {
    padding: 10px;
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.messages-list {
    margin-top: 20px;
}

.message-item {
    padding: 10px;
    margin-bottom: 10px;
    background-color: var(--tg-theme-secondary-bg-color);
    border-radius: 5px;
}