/* JSON <-> CSV */
.json-csv-tool { padding: 1rem 0; }

.jc-tabs {
    display: flex;
    gap: 0.75rem;
    margin: 1.25rem 0 1rem;
    flex-wrap: wrap;
}

.jc-tabs .tab-btn {
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-color);
    padding: 0.6rem 1rem;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 700;
}

.jc-tabs .tab-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

.jc-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 1rem 0 2rem;
}

.jc-panel { display: flex; flex-direction: column; gap: 1rem; }
.jc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.jc-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.jc-actions .btn { min-width: 180px; flex: 1; }

.tab-content { display: none; }
.tab-content.active { display: block; }

.jc-box {
    padding: 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-top: 1rem;
}

.jc-results {
    padding: 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.jc-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin: 0.75rem 0 1rem;
}

.jc-card {
    padding: 0.9rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
}

.jc-card .label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.jc-card strong {
    font-family: 'Courier New', monospace;
    font-weight: 900;
    font-size: 1.05rem;
    word-break: break-word;
}

.jc-section { margin-top: 1.25rem; }
.jc-section h4 { margin: 0 0 0.6rem 0; }

.jc-preview {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: auto;
    max-height: 320px;
}

.jc-table {
    width: 100%;
    border-collapse: collapse;
}

.jc-table th, .jc-table td {
    padding: 0.6rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    font-size: 0.9rem;
}

.jc-table thead th {
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 5;
}

.jc-pre {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.85rem;
    overflow: auto;
    max-height: 260px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    white-space: pre-wrap;
}

.muted { color: var(--text-secondary); }

@media (max-width: 992px) {
    .jc-layout { grid-template-columns: 1fr; }
    .jc-grid { grid-template-columns: 1fr; }
    .jc-cards { grid-template-columns: 1fr; }
}