.test-command-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.page-header-modern {
    margin-bottom: 2rem;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-left h1 {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 700;
}

.register-id {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

.test-command-metric {
    align-self: center;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.test-command-metric-block {
    margin-top: 0.25rem;
}

.btn-back, .btn-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.form-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.btn-back:hover, .btn-icon:hover {
    background: var(--bg-secondary);
    border-color: var(--primary);
}

.content-grid {
    display: grid;
    gap: 1.5rem;
}

.status-card-modern {
    padding: 1.5rem;
    background: var(--bg-primary);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
}

.status-card-modern.connected {
    border-color: var(--success);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, transparent 100%);
}

.status-card-modern.disconnected {
    border-color: var(--danger);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.05) 0%, transparent 100%);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.connected .status-dot {
    background: var(--success);
}

.disconnected .status-dot {
    background: var(--danger);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.status-text p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.command-form-card, .response-card-modern {
    padding: 2rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.command-form-card h2 {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.form-select, .form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9375rem;
    transition: all 0.2s;
}

.form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.875rem;
    resize: vertical;
}

.command-doc {
    padding: 1rem;
    background: var(--bg-secondary);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.doc-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.doc-header h4 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.doc-description {
    margin: 0.5rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.doc-payload {
    margin-top: 1rem;
    padding: 0.75rem;
    background: var(--bg-primary);
    border-radius: var(--radius);
}

.doc-payload strong {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.doc-payload pre {
    margin: 0;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.form-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary-modern, .btn-secondary-modern {
    flex: 1;
    min-width: 150px;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.btn-primary-modern {
    background: linear-gradient(135deg, var(--primary) 0%, #2563eb 100%);
    border: none;
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary-modern:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary-modern {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.btn-secondary-modern:hover:not(:disabled) {
    background: var(--bg-secondary);
    border-color: var(--text-secondary);
}

.btn-primary-modern:disabled, .btn-secondary-modern:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.response-card-modern {
    border-left: 4px solid var(--border);
}

.response-card-modern.success {
    border-left-color: var(--success);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, transparent 100%);
}

.response-card-modern.error {
    border-left-color: var(--danger);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.05) 0%, transparent 100%);
}

.response-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.response-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.response-card-modern.success .response-icon {
    background: var(--success-light);
    color: var(--success);
}

.response-card-modern.error .response-icon {
    background: var(--danger-light);
    color: var(--danger);
}

.response-header h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.request-id {
    margin: 0.25rem 0 0 0;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.request-id code {
    padding: 0.125rem 0.375rem;
    background: var(--bg-secondary);
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, monospace;
}

.response-payload, .response-error {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius);
}

.response-payload h4, .response-error h4 {
    margin: 0 0 0.75rem 0;
    font-size: 0.875rem;
    font-weight: 600;
}

.response-payload pre {
    margin: 0;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 0.8125rem;
    white-space: pre-wrap;
    word-break: break-all;
}

.alert-modern {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--radius);
    border: 1px solid;
}

.alert-modern.error {
    background: var(--danger-light);
    border-color: var(--danger);
    color: #7f1d1d;
}

.alert-modern svg {
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.alert-modern div {
    flex: 1;
}

.alert-modern strong {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.alert-modern p {
    margin: 0;
    font-size: 0.875rem;
}

.alert-modern button {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: currentColor;
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: var(--radius);
    transition: background 0.2s;
}

.alert-modern button:hover {
    background: rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .test-command-container {
        padding: 1rem 0.5rem;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-left {
        width: 100%;
    }

    .header-left h1 {
        font-size: 1.5rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn-primary-modern, .btn-secondary-modern {
        width: 100%;
    }
}