.csv-shell .card {
    border-radius: 1rem;
}

.csv-drop-zone {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100%;
    padding: 2rem 1.25rem;
    border: 2px dashed rgba(108, 117, 125, 0.5);
    border-radius: 1rem;
    background: linear-gradient(180deg, rgba(13, 110, 253, 0.04), rgba(13, 110, 253, 0.1));
    text-align: center;
    cursor: pointer;
    transition: border-color .2s ease, transform .2s ease, background-color .2s ease;
}

.csv-drop-zone:hover,
.csv-drop-zone.drag-over {
    border-color: var(--bs-primary);
    transform: translateY(-1px);
    background: linear-gradient(180deg, rgba(13, 110, 253, 0.08), rgba(13, 110, 253, 0.14));
}

.csv-drop-zone input {
    display: none;
}

.csv-drop-icon {
    font-size: 2.5rem;
    color: var(--bs-primary);
}

.csv-textarea,
.csv-preview-output {
    font-family: var(--bs-font-monospace);
    font-size: .95rem;
}

.csv-setting-label-placeholder {
    min-height: 1.5rem;
    margin-bottom: .5rem;
}

.csv-setting-switch {
    display: flex;
    align-items: center;
    gap: .5rem;
    min-height: 2.625rem;
    margin-bottom: .25rem;
}

.csv-setting-switch .form-check-input {
    margin-top: 0;
    flex-shrink: 0;
}

.csv-preview-output {
    min-height: 14rem;
}

.csv-table-wrap {
    max-height: 46rem;
    overflow: auto;
}

.csv-table-editor {
    min-width: 42rem;
    margin-bottom: 0;
    vertical-align: middle;
}

.csv-table-editor thead th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--bs-light);
}

.csv-cell-input,
.csv-header-input {
    min-width: 9rem;
    font-size: .95rem;
}

.csv-header-stack {
    display: flex;
    gap: .5rem;
    align-items: center;
}

.csv-header-stack .csv-header-input {
    flex: 1 1 auto;
}

.csv-row-actions,
.csv-col-actions {
    width: 1%;
    white-space: nowrap;
}

.csv-empty-state {
    min-height: 14rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed var(--bs-border-color);
    border-radius: .75rem;
    background: rgba(108, 117, 125, 0.05);
    padding: 1rem;
    text-align: center;
}

@media (max-width: 991.98px) {
    .csv-table-editor {
        min-width: 36rem;
    }
}

@media (max-width: 575.98px) {
    .csv-drop-zone {
        min-height: 15rem;
    }

    .csv-setting-label-placeholder {
        display: none;
    }

    .csv-table-editor {
        min-width: 30rem;
    }
}