.json-panels {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .json-panels {
        flex-direction: row;
        align-items: stretch;
    }
}

.panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.panel label {
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: var(--rosa);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.output-header label {
    margin-bottom: 0;
}

.output-header .copy-btn {
    background: transparent;
    border: 1px solid var(--rosa-claro);
    color: var(--texto);
    padding: 0.2rem 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
}

.output-header .copy-btn:hover {
    background: var(--rosa);
}

textarea {
    width: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 2px solid var(--rosa-claro);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.3);
    color: var(--texto);
    font-family: monospace;
    font-size: 0.9rem;
    resize: vertical;
    outline: none;
    box-sizing: border-box;
}

[data-theme="dark"] textarea {
    background: rgba(0, 0, 0, 0.2);
}

textarea:focus {
    border-color: var(--azul-pastel);
}

.panel-controls {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
}

@media (min-width: 768px) {
    .panel-controls {
        flex-direction: column;
        padding: 0 1rem;
    }
}

.action-btn {
    background: var(--rosa);
    color: var(--texto);
    border: none;
    padding: 0.8rem 1.2rem;
    border-radius: 12px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.action-btn:hover {
    background: var(--azul-hover);
    transform: scale(1.05);
}

.error-msg {
    color: #ff4757;
    margin-top: 1rem;
    font-weight: bold;
    display: none;
}