.form-sms .flex {
    display: flex;
    flex-direction: column;
    row-gap: var(--form-row-gap);
}

.form-sms .buttons-panel .sm-button {
    min-width: var(--button-min-width);
}

.form-sms .buttons-panel {
    margin-top: 1em;
    display: flex;
    flex-direction: row;
    column-gap: 0.5em;
    justify-content: right;
}

.form-sms .margin-right-push {
    margin-right: auto;
}

.form-sms .loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 150px;
    /* Match textarea height */
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: #f9f9f9;
    color: #555;
    font-size: 1.1em;
    text-align: center;
    padding: 20px;
    box-sizing: border-box;
}

.form-sms .spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: #007bff;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}