.tool-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-light);
}

.tool-title-wrapper i {
    font-size: 2rem;
    color: var(--primary-color);
}

.tool-title-wrapper .tool-title {
    margin-bottom: 0;
    border-bottom: none;
}

.config-section {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.config-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.config-actions {
    flex-direction: row;
    align-items: flex-end;
    gap: 8px;
    margin-left: auto;
}

.indent-buttons {
    display: flex;
    gap: 8px;
}

.indent-btn {
    padding: 8px 16px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.indent-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.indent-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.json-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.json-panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.json-input {
    min-height: 300px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.6;
}

.json-output {
    min-height: 300px;
    max-height: 500px;
    overflow: auto;
    padding: 12px 14px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.6;
    margin: 0;
    white-space: pre-wrap;
    word-break: break-all;
}

.json-key {
    color: #d63384;
}

.json-string {
    color: #198754;
}

.json-number {
    color: #0d6efd;
}

.json-boolean {
    color: #fd7e14;
}

.json-null {
    color: #6c757d;
}

.error-message {
    padding: 10px 14px;
    background: #fff2f0;
    border: 1px solid #ffccc7;
    border-radius: var(--radius-md);
    color: var(--danger-color);
    font-size: 13px;
    display: none;
    align-items: center;
    gap: 8px;
}

.error-message.show {
    display: flex;
}

@media (max-width: 768px) {
    .config-section {
        flex-direction: column;
        align-items: stretch;
    }

    .config-actions {
        margin-left: 0;
        justify-content: flex-start;
    }

    .json-panels {
        grid-template-columns: 1fr;
    }

    .json-input,
    .json-output {
        min-height: 200px;
    }
}