/* Settings Page Styles */

.settings-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.settings-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    background: #f5f5f5;
}

.settings-section {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.settings-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
}

.settings-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: #34495e;
}

/* Connection Status */
.connection-status {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 6px;
    margin-bottom: 1rem;
}

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

.status-indicator.connected {
    background: #27ae60;
}

.status-indicator.disconnected {
    background: #e74c3c;
    animation: none;
}

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

.status-text {
    flex: 1;
}

.status-label {
    font-weight: 600;
    color: #2c3e50;
}

.status-value {
    color: #7f8c8d;
    font-size: 0.875rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.stat-card {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 6px;
    border-left: 4px solid #3498db;
}

.stat-label {
    font-size: 0.875rem;
    color: #7f8c8d;
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.stat-unit {
    font-size: 0.875rem;
    color: #7f8c8d;
    margin-left: 0.25rem;
}

/* Message List */
.message-list {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 6px;
}

.message-item {
    padding: 1rem;
    border-bottom: 1px solid #eee;
    transition: background 0.2s;
}

.message-item:hover {
    background: #f8f9fa;
}

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

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

.message-topic {
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    color: #3498db;
    font-weight: 600;
}

.message-time {
    font-size: 0.75rem;
    color: #7f8c8d;
}

.message-payload {
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    background: #f8f9fa;
    padding: 0.5rem;
    border-radius: 4px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    color: #2c3e50;
}

.message-payload.collapsed {
    max-height: 60px;
    overflow: hidden;
    position: relative;
}

.message-payload.collapsed::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(transparent, #f8f9fa);
}

.message-expand {
    font-size: 0.75rem;
    color: #3498db;
    cursor: pointer;
    margin-top: 0.25rem;
    display: inline-block;
}

.message-expand:hover {
    text-decoration: underline;
}

/* Controls */
.controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.btn-control {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.toggle-label {
    font-size: 0.875rem;
    color: #2c3e50;
}

.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #3498db;
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: #7f8c8d;
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state-text {
    font-size: 1rem;
}

/* Auto-refresh indicator */
.auto-refresh {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: #7f8c8d;
    padding: 0.25rem 0.5rem;
    background: #f8f9fa;
    border-radius: 4px;
}

.refresh-spinner {
    width: 12px;
    height: 12px;
    border: 2px solid #ddd;
    border-top-color: #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .settings-content {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .controls {
        flex-direction: column;
    }
    
    .btn-control {
        width: 100%;
    }
}