body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f7fa;
}
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}
.header {
    background-color: #0f4880;
    color: white;
    padding: 20px;
    border-radius: 8px 8px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header h1 {
    margin: 0;
    font-size: 24px;
}
.header-right {
    display: flex;
    gap: 15px;
}
.content {
    display: grid;
    grid-template-columns: 65% 35%;
    gap: 20px;
    margin-top: 20px;
}
@keyframes flash {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.flashing-button {
    animation: flash 1s linear infinite;
}
.flashing-button:hover,
.flashing-button:focus {
    animation-play-state: paused;
}

.panel {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 20px;
    margin-bottom: 20px;
}
.panel-title {
    font-size: 18px;
    margin-top: 0;
    margin-bottom: 15px;
    color: #0f4880;
    font-weight: 600;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.panel-title .actions {
    display: flex;
    gap: 10px;
}
.upload-area {
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    margin-bottom: 20px;
    cursor: pointer;
    transition: border-color 0.3s;
}
.upload-area:hover {
    border-color: #0f4880;
}
.upload-icon {
    font-size: 48px;
    color: #0f4880;
    margin-bottom: 15px;
}
#networkContainer {
    height: 400px;
    border: 1px solid #ddd;
    background-color: #fafafa;
    border-radius: 8px;
    position: relative;
}
#voltageProfileChart {
    height: 300px;
    margin-top: 20px;
    position: relative;
}
.interpretation {
    margin-top: 20px;
}
.interpretation-item {
    margin-bottom: 15px;
    padding: 15px;
    background-color: #f9f9f9;
    border-left: 4px solid #0f4880;
    border-radius: 4px;
}
.interpretation-item h4 {
    margin-top: 0;
    margin-bottom: 8px;
    color: #0f4880;
}
.interpretation-item p {
    margin: 0;
    color: #333;
}
.button {
    background-color: #0f4880;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}
.button:hover {
    background-color: #0a2f52;
}
.button-secondary {
    background-color: #f0f0f0;
    color: #333;
    border: 1px solid #ddd;
}
.button-secondary:hover {
    background-color: #e0e0e0;
}
.button-small {
    padding: 5px 10px;
    font-size: 12px;
}
.button-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    cursor: pointer;
    color: #0f4880;
    background-color: #f0f0f0;
    border: 1px solid #ddd;
    font-size: 16px;
}
.button-icon:hover {
    background-color: #e0e0e0;
}
.action-bar {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}
.parameter-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}
.parameter-table th, .parameter-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #eee;
}
.parameter-table th {
    background-color: #f7f7f7;
    font-weight: 600;
}
.parameter-table tr:hover {
    background-color: #f9f9f9;
}
.parameter-progress {
    width: 100%;
    height: 6px;
    background-color: #eee;
    border-radius: 3px;
    margin-top: 5px;
}
.parameter-progress-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}
.tabs {
    display: flex;
    border-bottom: 1px solid #ddd;
    margin-bottom: 20px;
}
.tab {
    padding: 10px 20px;
    cursor: pointer;
    border-bottom: 3px solid transparent;
}
.tab.active {
    border-bottom-color: #0f4880;
    color: #0f4880;
    font-weight: 600;
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}
.status {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}
.status.ok {
    background-color: #e3f7e3;
    color: #2e7d32;
}
.status.warning {
    background-color: #fff8e1;
    color: #f57f17;
}
.status.error {
    background-color: #fdecea;
    color: #d32f2f;
}
.reference {
    margin-bottom: 15px;
    padding: 10px;
    background-color: #f0f7ff;
    border-radius: 4px;
    font-size: 14px;
}
.reference a {
    color: #0f4880;
    text-decoration: none;
    font-weight: 600;
}
.reference a:hover {
    text-decoration: underline;
}
.loading {
    display: none;
    margin: 20px auto;
    text-align: center;
}
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #0f4880;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.time-series-controls {
    background-color: #f5f7fa;
    border-radius: 4px;
    padding: 15px;
    margin-top: 10px;
}
.time-slider {
    width: 100%;
    margin: 10px 0;
}
.playback-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}
.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}
.search-box input {
    flex-grow: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}
.filter-container {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}
.filter-group {
    flex: 1;
}
.range-slider {
    display: flex;
    gap: 10px;
    align-items: center;
}
.range-slider input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 5px;
}
.filter-results {
    background-color: #f5f7fa;
    border-radius: 4px;
    padding: 15px;
    margin-top: 15px;
}
.node-details-panel {
    margin-top: 15px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 4px;
}
.stats-box {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}
.stat-item {
    flex: 1;
    background-color: #f5f7fa;
    border-radius: 4px;
    padding: 15px;
    text-align: center;
}
.stat-value {
    font-size: 24px;
    font-weight: bold;
}
.stat-label {
    font-size: 12px;
    color: #555;
    margin-top: 5px;
}
.tooltip {
    position: relative;
    display: inline-block;
    margin-left: 5px;
}
.tooltip .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: #e0eaf4;
    color: #0f4880;
    font-size: 12px;
    font-weight: bold;
    cursor: help;
}
.tooltip .text {
    visibility: hidden;
    width: 200px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
}
.tooltip:hover .text {
    visibility: visible;
    opacity: 1;
}
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}
.comparison-table th, .comparison-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #eee;
}
.comparison-table th {
    background-color: #f7f7f7;
    font-weight: 600;
}
.positive-change {
    color: #4caf50;
}
.negative-change {
    color: #f44336;
}
#timeSeriesControls {
    margin-top: 10px;
    padding: 10px;
    background-color: #f5f7fa;
    border-radius: 4px;
}
/* Live Events Panel */
.events-container {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid #eee;
    border-radius: 4px;
    margin-bottom: 10px;
}

.event-item {
    padding: 10px 15px;
    border-bottom: 1px solid #eee;
    transition: background-color 0.3s;
    display: flex;
    align-items: flex-start;
}

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

.event-item:hover {
    background-color: #f9f9f9;
}

.event-item.new {
    animation: highlightEvent 3s ease-out;
}

@keyframes highlightEvent {
    0% { background-color: rgba(15, 72, 128, 0.2); }
    100% { background-color: transparent; }
}

.event-time {
    color: #666;
    font-size: 12px;
    min-width: 80px;
    display: inline-block;
    font-family: monospace;
}

.event-description {
    flex: 1;
}

.event-item.voltage .event-description::before {
    content: "⚡ ";
    color: #fbc02d;
}

.event-item.der .event-description::before {
    content: "🔋 ";
    color: #4caf50;
}

.event-item.communication .event-description::before {
    content: "📡 ";
    color: #f44336;
}

.event-item.protection .event-description::before {
    content: "🛡️ ";
}

.event-item.loading .event-description::before {
    content: "⚠️ ";
    color: #ff9800;
}

.events-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
    padding: 10px;
    background-color: #f5f7fa;
    border-radius: 4px;
    font-size: 13px;
}

.events-filter label {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Badge for notification count */
.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: #f44336;
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
}