/* PLC Line Control Page Styles */

/* PLC Table Container */
.plc-table-container {
    margin-bottom: 1.5rem;
}

.plc-table-container .empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-secondary);
}

.plc-table-container .empty-state svg {
    opacity: 0.4;
    margin-bottom: 1rem;
}

/* PLC Toggle Switch (for table) */
.plc-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.plc-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.plc-toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-border, #3a4a5e);
    border-radius: 24px;
    transition: background-color 0.2s;
}

.plc-toggle-slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.2s;
}

.plc-toggle input:checked + .plc-toggle-slider {
    background-color: var(--color-success, #22c55e);
}

.plc-toggle input:checked + .plc-toggle-slider::before {
    transform: translateX(20px);
}

/* PLC Status Badge (for control panel) */
.plc-status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
}

.plc-status-badge.plc-status-online {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.plc-status-badge.plc-status-offline {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.plc-status-badge.plc-status-unknown {
    background: rgba(156, 163, 175, 0.1);
    color: #9ca3af;
}

/* PLC Control Panel */
.plc-control-panel {
    background: var(--color-bg-card, #0f1d2e);
    border: 1px solid var(--color-border, #2a3a4e);
    border-radius: var(--radius-lg, 8px);
    padding: 1.5rem;
    margin-top: 1rem;
    box-shadow: var(--shadow-md);
}

.plc-control-panel.hidden {
    display: none;
}

.plc-control-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border, #2a3a4e);
}

.plc-control-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

/* PLC Sections */
.plc-section {
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border, #2a3a4e);
}

.plc-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.plc-section h4 {
    margin: 0 0 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Connection & Config Controls */
.plc-connection-controls,
.plc-config-controls,
.plc-feedback-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Relay Grid */
.plc-relay-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
}

.plc-relay-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--color-bg-elevated, #1a2a3e);
    border: 1px solid var(--color-border, #2a3a4e);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--color-text-primary);
}

.plc-relay-item span:first-child {
    flex: 1;
    font-weight: 500;
}

/* Raw Command Input */
.plc-command-input {
    display: flex;
    gap: 0.5rem;
}

.plc-command-input .form-input {
    flex: 1;
}

/* Feedback Messages */
.plc-feedback-messages {
    margin-top: 0.75rem;
    max-height: 250px;
    overflow: hidden;
    border: 1px solid var(--color-border, #2a3a4e);
    border-radius: 6px;
}

.plc-messages-list {
    max-height: 250px;
    overflow-y: auto;
    padding: 0.5rem;
    font-family: monospace;
    font-size: 0.8rem;
    background: var(--color-bg-elevated, #1a2a3e);
}

.plc-messages-list .empty-text {
    text-align: center;
    color: var(--color-text-secondary);
    padding: 1rem;
    margin: 0;
}

.plc-message {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    padding: 0.25rem 0;
    border-bottom: 1px solid var(--color-border, #2a3a4e);
}

.plc-message:last-child {
    border-bottom: none;
}

.plc-msg-time {
    color: var(--color-text-secondary);
    min-width: 75px;
}

.plc-msg-type {
    color: var(--color-primary, #4f9ef8);
    font-weight: 500;
    min-width: 100px;
}

.plc-msg-raw {
    color: var(--color-text-primary);
    word-break: break-all;
}

.plc-message-event .plc-msg-type {
    color: #16a34a;
}

.plc-message-error .plc-msg-type {
    color: #dc2626;
}

.plc-message-config .plc-msg-type {
    color: #ca8a04;
}

/* PLC Modal Relay Defaults */
.plc-relay-defaults {
    display: flex;
    gap: 1rem;
    margin-top: 0.25rem;
}

/* PLC Form Sections */
.plc-form-section {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border, #2a3a4e);
}

.plc-form-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.plc-form-section-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-secondary, #94a3b8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 1rem;
}

.plc-form-section-desc {
    font-size: 0.85rem;
    color: var(--color-text-secondary, #94a3b8);
    margin: -0.5rem 0 1rem;
}

.plc-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 0;
}

.plc-form-row-4,
.form-row.plc-form-row-4 {
    grid-template-columns: 1fr 1fr 1fr 1fr;
}

.form-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--color-primary, #4f9ef8);
    margin-top: 0.25rem;
}

@media (max-width: 600px) {
    .plc-form-row {
        grid-template-columns: 1fr;
    }
    .plc-form-row-4 {
        grid-template-columns: 1fr 1fr;
    }
}

/* Button sizes */
.btn-xs {
    padding: 0.2rem 0.4rem;
    font-size: 0.75rem;
}

/* Responsive */
@media (max-width: 768px) {
    .plc-relay-grid {
        grid-template-columns: 1fr;
    }

    .plc-connection-controls,
    .plc-config-controls,
    .plc-feedback-controls {
        flex-direction: column;
        align-items: flex-start;
    }

    .plc-command-input {
        flex-direction: column;
    }
}

/* Modal action rows */
.plc-form-actions-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.plc-form-actions-row .plc-status-badge {
    margin-left: 0.5rem;
}

/* ==================== PLC Feedback Server Panel ==================== */

.plc-feedback-server-panel {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}

.plc-feedback-server-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.plc-feedback-server-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.plc-feedback-server-body .plc-feedback-server-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

@media (max-width: 900px) {
    .plc-feedback-server-body .plc-feedback-server-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.plc-feedback-btn-full {
    width: 100%;
}

/* ==================== PLC Test Page Styles ==================== */

.plc-test-grid {
    display: grid;
    grid-template-columns: 300px 1fr 280px;
    gap: 1.5rem;
}

@media (max-width: 1200px) {
    .plc-test-grid {
        grid-template-columns: 1fr;
    }
}

.plc-test-left-col,
.plc-test-right-col {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.plc-test-center-col {
    display: flex;
    flex-direction: column;
}

.plc-test-panel {
    background: var(--color-bg-secondary, #1e293b);
    border: 1px solid var(--color-border, #334155);
    border-radius: 12px;
    overflow: hidden;
}

.plc-test-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border, #334155);
}

.plc-test-panel-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-primary, #fff);
    margin: 0;
}

.plc-test-panel-body {
    padding: 1.25rem;
}

.plc-test-hint {
    font-size: 0.75rem;
    color: var(--color-text-tertiary, #64748b);
    margin-bottom: 0.75rem;
}

.plc-test-btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.plc-test-btn-full {
    width: 100%;
}

.plc-test-btn-half {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.plc-test-server-fields {
    display: grid;
    grid-template-columns: 1fr 80px;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.plc-test-quick-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Badge */
.plc-test-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
}

.plc-test-badge-disconnected {
    background: var(--color-bg-tertiary, #0f172a);
    color: var(--color-text-tertiary, #64748b);
    border: 1px solid var(--color-border, #334155);
}

.plc-test-badge-connected {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.plc-test-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
    background: var(--color-text-tertiary, #64748b);
}

.plc-test-badge-dot-connected {
    background: #10b981;
    animation: pulse 2s infinite;
}

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

/* Console */
.plc-test-console-panel {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.plc-test-console-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1rem;
}

.plc-test-console-output {
    flex: 1;
    background: var(--color-bg-tertiary, #0f172a);
    border: 1px solid var(--color-border, #334155);
    border-radius: 8px;
    padding: 1rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.8rem;
    overflow-y: auto;
    min-height: 400px;
    max-height: 500px;
}

.plc-test-console-input {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.plc-test-console-input .form-input {
    flex: 1;
}

/* Console line colors */
.plc-console-line {
    margin-bottom: 2px;
    line-height: 1.5;
}

.plc-console-system { color: var(--color-text-tertiary, #64748b); }
.plc-console-info { color: var(--color-text-secondary, #94a3b8); }
.plc-console-success { color: #10b981; }
.plc-console-error { color: #f43f5e; }
.plc-console-sent { color: #3b82f6; }
.plc-console-received { color: #f59e0b; }

/* Actions */
.plc-test-actions-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 500px;
    overflow-y: auto;
}

.plc-test-action-card {
    background: var(--color-bg-tertiary, #0f172a);
    border: 1px solid var(--color-border, #334155);
    border-radius: 8px;
    padding: 0.75rem;
}

.plc-test-action-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.25rem;
}

.plc-test-action-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-primary, #fff);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    margin-right: 0.5rem;
}

.plc-test-action-cmd {
    font-size: 0.75rem;
    color: var(--color-text-tertiary, #64748b);
}

.plc-test-action-trigger {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border, #334155);
    font-size: 0.75rem;
    color: #f59e0b;
}

.plc-test-action-trigger-label {
    font-weight: 500;
}

.plc-test-action-trigger-cmd {
    font-family: monospace;
    color: var(--color-text-tertiary, #64748b);
    margin-top: 2px;
}

/* Command Reference */
.plc-test-ref-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .plc-test-ref-grid {
        grid-template-columns: 1fr;
    }
}

.plc-test-ref-heading {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary, #64748b);
    margin: 0 0 0.5rem 0;
}

.plc-test-ref-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary, #cbd5e1);
}

.plc-test-code {
    color: #10b981;
    font-family: monospace;
    font-size: 0.8rem;
}

.font-mono {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ==================== PLC Controls Page ==================== */

.plc-controls-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--color-text-secondary, #94a3b8);
}

.plc-controls-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--color-text-secondary, #94a3b8);
}

.plc-controls-empty .empty-state-icon {
    margin-bottom: 1rem;
    opacity: 0.5;
}

.plc-controls-empty h3 {
    color: var(--color-text-primary, #e2e8f0);
    margin-bottom: 0.5rem;
}

.plc-controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    padding: 1rem 0;
}

.plc-controls-card {
    background: var(--color-surface, #1e293b);
    border: 1px solid var(--color-border, #334155);
    border-radius: 12px;
    overflow: hidden;
}

.plc-controls-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border, #334155);
}

.plc-controls-card-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-text-primary, #e2e8f0);
}

.plc-controls-card-badge {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: var(--color-primary-bg, rgba(99, 102, 241, 0.15));
    color: var(--color-primary, #818cf8);
}

.plc-controls-card-body {
    padding: 1.25rem;
}

.plc-controls-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.plc-control-btn {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    border: none;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 80px;
}

.plc-control-btn.plc-btn-high {
    background: var(--color-primary, #6366f1);
    color: #fff;
}

.plc-control-btn.plc-btn-high:hover {
    background: #4f46e5;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.plc-control-btn.plc-btn-low {
    background: #475569;
    color: #e2e8f0;
}

.plc-control-btn.plc-btn-low:hover {
    background: #64748b;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(71, 85, 105, 0.3);
}

.plc-control-btn.plc-btn-sending {
    opacity: 0.7;
    cursor: wait;
}

.plc-control-btn.plc-btn-success {
    background: #10b981 !important;
    color: #fff !important;
}

.plc-control-btn.plc-btn-error {
    background: #ef4444 !important;
    color: #fff !important;
}