.meyne-measurement-converter {
    max-width: 800px;
    margin: 30px auto;
    border: 1px solid;
    padding: 30px;
}

.mmc-history {
    margin-bottom: 2em;
}

.mmc-history-title {
    font-weight: 600;
    margin-bottom: 0.5em;
}

.mmc-history-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mmc-history-list li {
    padding: 0.5em 0;
    border-bottom: 1px solid #eee;
}

.mmc-history-list li:last-child {
    border-bottom: none;
}

.mmc-form {
    display: flex;
    flex-direction: column;
    gap: 1em;
}

.mmc-field {
    display: flex;
    flex-direction: column;
}

.mmc-field label {
    margin-bottom: 0.25em;
    font-weight: 500;
}

.mmc-field input,
.mmc-field select {
    padding: 0.5em;
    font-size: 1em;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.mmc-button {
    padding: 0.75em 1.5em;
    font-size: 1em;
    cursor: pointer;
    border: none;
    border-radius: 4px;
    transition: opacity 0.2s;
}

.mmc-button:hover {
    opacity: 0.8;
}

@media (min-width: 640px) {
    .mmc-form {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: flex-end;
    }
    
    .mmc-field {
        flex: 1;
        min-width: 150px;
    }
    
    .mmc-button {
        flex-shrink: 0;
    }
}