/* CSS Variables - Dark Theme */
:root {
    --bg-primary: #1e1e1e;
    --bg-secondary: #252526;
    --bg-tertiary: #2d2d30;
    --bg-card: #2d2d30;
    --border-color: #3e3e42;
    
    --text-primary: #d4d4d4;
    --text-secondary: #999;
    --text-tertiary: #666;
    
    --color-primary: #4ec9b0;
    --color-success: #6a9955;
    --color-warning: #dcdcaa;
    --color-error: #f48771;
    --color-info: #569cd6;
    
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    
    --transition: all 0.3s ease;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Header */
.header {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.header-left h1 {
    color: var(--color-primary);
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-left h1 i {
    color: var(--color-info);
}

.header-subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

.header-right {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-error);
    animation: pulse 2s infinite;
}

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

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

.update-time {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Stats Overview */
.stats-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card.primary {
    border-left: 4px solid var(--color-primary);
}

.stat-card.success {
    border-left: 4px solid var(--color-success);
}

.stat-card.warning {
    border-left: 4px solid var(--color-warning);
}

.stat-card.error {
    border-left: 4px solid var(--color-error);
}

.stat-icon {
    font-size: var(--font-size-3xl);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(78, 201, 176, 0.1);
}

.stat-card.primary .stat-icon {
    color: var(--color-primary);
    background: rgba(78, 201, 176, 0.1);
}

.stat-card.success .stat-icon {
    color: var(--color-success);
    background: rgba(106, 153, 85, 0.1);
}

.stat-card.warning .stat-icon {
    color: var(--color-warning);
    background: rgba(220, 220, 170, 0.1);
}

.stat-card.error .stat-icon {
    color: var(--color-error);
    background: rgba(244, 135, 113, 0.1);
}

.stat-content {
    flex: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-unit {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    display: block;
    margin-top: var(--spacing-xs);
}

/* Charts Section */
.charts-section {
    margin-bottom: var(--spacing-xl);
}

.charts-section h2,
.system-info-section h2,
.packets-section h2 {
    color: var(--color-info);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--spacing-lg);
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
}

.chart-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.chart-container {
    position: relative;
    height: 300px;
}

/* System Info Section */
.system-info-section {
    margin-bottom: var(--spacing-xl);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.info-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.info-value {
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

/* Packets Section */
.packets-section {
    margin-bottom: var(--spacing-xl);
}

.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.packets-table {
    width: 100%;
    border-collapse: collapse;
}

.packets-table thead {
    background: var(--bg-tertiary);
}

.packets-table th {
    padding: var(--spacing-md);
    text-align: left;
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

.packets-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.packets-table tbody tr:hover {
    background: var(--bg-tertiary);
}

.packets-table tbody tr:last-child {
    border-bottom: none;
}

.packets-table td {
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.empty-message {
    text-align: center;
    color: var(--text-tertiary);
    padding: var(--spacing-xl) !important;
    font-style: italic;
}

/* Packet Type & Status Badges */
.packet-type,
.packet-route,
.packet-status {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.packet-type {
    background: rgba(78, 201, 176, 0.2);
    color: var(--color-primary);
}

.route-direct {
    background: rgba(106, 153, 85, 0.2);
    color: var(--color-success);
}

.route-flood {
    background: rgba(220, 220, 170, 0.2);
    color: var(--color-warning);
}

.status-forwarded {
    background: rgba(106, 153, 85, 0.2);
    color: var(--color-success);
}

.status-dropped {
    background: rgba(244, 135, 113, 0.2);
    color: var(--color-error);
}

/* Signal Strength Indicator */
.signal-bars {
    display: inline-flex;
    align-items: flex-end;
    gap: 2px;
    height: 14px;
}

.signal-bar {
    width: 3px;
    background-color: var(--text-tertiary);
    border-radius: 1px;
}

.signal-bar:nth-child(1) { height: 25%; }
.signal-bar:nth-child(2) { height: 50%; }
.signal-bar:nth-child(3) { height: 75%; }
.signal-bar:nth-child(4) { height: 100%; }

.signal-excellent .signal-bar { background-color: var(--color-success); }
.signal-good .signal-bar:nth-child(-n+3) { background-color: var(--color-success); }
.signal-fair .signal-bar:nth-child(-n+2) { background-color: var(--color-warning); }
.signal-poor .signal-bar:nth-child(1) { background-color: var(--color-error); }

/* Footer */
.footer {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    text-align: center;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.footer-content a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-content a:hover {
    color: var(--color-info);
}

.disclaimer {
    font-size: var(--font-size-xs) !important;
    color: var(--text-tertiary) !important;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-right {
        width: 100%;
        align-items: flex-start;
    }
    
    .header-left h1 {
        font-size: var(--font-size-2xl);
    }
    
    .stats-overview {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .packets-table {
        min-width: 600px;
    }
}

/* Loading Animation */
@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.loading {
    animation: shimmer 2s infinite;
    background: linear-gradient(
        to right,
        var(--bg-card) 0%,
        var(--bg-tertiary) 50%,
        var(--bg-card) 100%
    );
    background-size: 1000px 100%;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Neighbors Section */
.neighbors-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow);
}

.neighbors-section h2 {
    color: var(--text-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

#neighbors-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.neighbor-map-container {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

#neighbor-map {
    width: 100%;
    height: 500px;
    border-radius: 8px;
}

/* Neighbor Table */
.neighbor-table-container {
    overflow-x: auto;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
}

.neighbor-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.neighbor-table thead {
    background: var(--bg-tertiary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.neighbor-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--color-primary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.neighbor-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.neighbor-table tbody tr {
    transition: var(--transition);
}

.neighbor-table tbody tr:hover {
    background: var(--bg-tertiary);
}

.neighbor-table tbody tr:last-child td {
    border-bottom: none;
}

.hash-cell {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.location-cell {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.contact-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    font-size: var(--font-size-xs);
    font-weight: bold;
    text-transform: uppercase;
}

.contact-badge.repeater {
    background: rgba(78, 201, 176, 0.2);
    color: var(--color-primary);
}

.rssi-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    font-weight: bold;
}

.rssi-badge.rssi-excellent {
    background: rgba(106, 153, 85, 0.2);
    color: var(--color-success);
}

.rssi-badge.rssi-good {
    background: rgba(78, 201, 176, 0.2);
    color: var(--color-primary);
}

.rssi-badge.rssi-fair {
    background: rgba(220, 220, 170, 0.2);
    color: var(--color-warning);
}

.rssi-badge.rssi-poor {
    background: rgba(244, 135, 113, 0.2);
    color: var(--color-error);
}

/* Leaflet custom markers */
.custom-marker {
    background: transparent;
    border: none;
}

.custom-marker .marker-content {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    font-size: 18px;
}

.local-marker .marker-content {
    background: var(--color-info);
    color: #fff;
    font-size: 22px;
}

.neighbor-marker .marker-content {
    color: #fff;
    font-size: 16px;
}

.neighbor-marker.rssi-excellent .marker-content {
    background: var(--color-success);
}

.neighbor-marker.rssi-good .marker-content {
    background: var(--color-primary);
}

.neighbor-marker.rssi-fair .marker-content {
    background: var(--color-warning);
}

.neighbor-marker.rssi-poor .marker-content {
    background: var(--color-error);
}

.distance-label {
    background: rgba(30, 30, 30, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: bold;
    color: var(--color-primary);
    text-align: center;
    white-space: nowrap;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.marker-popup {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 13px;
    line-height: 1.6;
}

.marker-popup strong {
    color: var(--color-primary);
}

/* Leaflet control styling */
.leaflet-control-layers {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 8px;
}

.leaflet-control-layers-toggle {
    background-color: var(--bg-card);
    border: 2px solid var(--border-color);
}

.leaflet-control-layers-expanded {
    padding: var(--spacing-sm);
    color: var(--text-primary);
}

.leaflet-control-layers-base label {
    color: var(--text-primary);
}

.leaflet-control-zoom {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.leaflet-control-zoom a {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

.leaflet-control-zoom a:hover {
    background-color: var(--bg-tertiary);
}

/* Statistics Section */
.statistics-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow);
}

.statistics-section h2 {
    color: var(--text-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.statistics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

/* Clickable Packets */
.clickable-packet {
    cursor: pointer;
    transition: var(--transition);
}

.clickable-packet:hover {
    background: var(--bg-tertiary) !important;
    transform: scale(1.01);
}

.path-hashes-cell {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-xs);
    max-width: 200px;
}

.path-hashes-cell .hash {
    display: inline-block;
    padding: 2px 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin: 2px;
}

.path-hashes-cell .local-hash {
    background: var(--color-success);
    color: var(--bg-primary);
    border-color: var(--color-success);
    font-weight: bold;
}

.path-hashes-cell .na {
    color: var(--text-tertiary);
    font-style: italic;
}

/* Packet Details Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
}

.modal-content {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 0;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.modal-header h3 {
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    margin: 0;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--color-error);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-xl);
}

.detail-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

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

.detail-section h4 {
    color: var(--color-info);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(62, 62, 66, 0.3);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--text-secondary);
    font-weight: 600;
    min-width: 150px;
}

.detail-value {
    color: var(--text-primary);
    text-align: right;
    flex: 1;
}

.detail-value.monospace {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    background: var(--bg-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .statistics-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    #neighbors-container {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        max-width: 100%;
        margin: var(--spacing-sm);
    }
    
    .detail-row {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .detail-label {
        min-width: auto;
    }
    
    .detail-value {
        text-align: left;
    }
}