:root {
    --bg-app: #090d16;
    --bg-sidebar: #0f1422;
    --bg-card: rgba(18, 25, 41, 0.6);
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(59, 130, 246, 0.3);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-blue: #3b82f6;
    --accent-blue-glow: rgba(59, 130, 246, 0.15);
    --accent-green: #10b981;
    --accent-green-glow: rgba(16, 185, 129, 0.15);
    --accent-red: #ef4444;
    --accent-red-glow: rgba(239, 68, 68, 0.15);
    --accent-purple: #8b5cf6;
    --accent-purple-glow: rgba(139, 92, 246, 0.15);
    --accent-yellow: #f59e0b;
    
    --sidebar-width: 320px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --shadow-premium: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-app);
    color: var(--text-primary);
    font-family: var(--font-sans);
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Sidebar Styling */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.logo-icon {
    font-size: 24px;
}

.logo h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.status-summary {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.dot.green { background-color: var(--accent-green); }
.dot.red { background-color: var(--accent-red); }
.dot.gray { background-color: var(--text-muted); }
.dot.purple { background-color: var(--accent-purple); }

.pulsing {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse 1.8s infinite;
}

.dot.purple.pulsing {
    box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.7);
    animation: pulse-purple 1.8s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

@keyframes pulse-purple {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 6px rgba(139, 92, 246, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(139, 92, 246, 0);
    }
}

/* Sidebar Navigation Items */
.nav-section {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.nav-section h2 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.nav-item.active {
    background: var(--accent-purple-glow);
    border-color: var(--accent-purple);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.15);
}

.nav-icon {
    font-size: 18px;
}

.nav-text {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.driver-section {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.driver-section h2 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.drivers-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.driver-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.driver-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.driver-item.active {
    background: var(--accent-blue-glow);
    border-color: var(--accent-blue);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.15);
}

.driver-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.driver-name-wrap {
    display: flex;
    flex-direction: column;
}

.driver-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.driver-id-sub {
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.driver-item-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.driver-metric {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Main Content Styling */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-app);
    height: 100%;
    overflow: hidden;
}

.empty-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-secondary);
    text-align: center;
    padding: 40px;
}

.empty-icon {
    font-size: 64px;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.empty-view h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.empty-view p {
    max-width: 400px;
    font-size: 14px;
    line-height: 1.5;
}

.dashboard-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 32px;
    gap: 24px;
    overflow-y: auto;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
}

.driver-title-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 4px;
}

.driver-title-row h2 {
    font-size: 24px;
    font-weight: 700;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.connected {
    background-color: var(--accent-green-glow);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-badge.disconnected {
    background-color: var(--accent-red-glow);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-badge.stopped {
    background-color: rgba(100, 116, 139, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(100, 116, 139, 0.3);
}

.subtext {
    font-size: 13px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--text-muted);
}

.btn-sm {
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 12px;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: all 0.15s ease;
}

.btn-sm:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.loading-spinner {
    animation: rotate 1s linear infinite;
    display: inline-block;
}

@keyframes rotate {
    100% { transform: rotate(360deg); }
}

/* Metrics Cards */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-premium);
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.metric-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.metric-icon {
    font-size: 20px;
}

.metric-value {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.metric-footer {
    font-size: 11px;
    color: var(--text-muted);
}

.progress-bar {
    width: 100%;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue) 0%, #60a5fa 100%);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.progress.purple {
    background: linear-gradient(90deg, var(--accent-purple) 0%, #c084fc 100%);
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-premium);
    overflow: hidden;
}

.panel-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.panel-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Log Panel Specifics */
.terminal-container {
    flex: 1;
    background-color: #05070c;
    padding: 20px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    border-bottom-left-radius: 16px;
    border-bottom-right-radius: 16px;
}

.terminal {
    white-space: pre-wrap;
    word-break: break-all;
    color: #e2e8f0;
}

.log-line {
    display: block;
    margin-bottom: 4px;
}

.log-level-debug { color: var(--text-muted); }
.log-level-info { color: #60a5fa; }
.log-level-warn { color: var(--accent-yellow); }
.log-level-error { color: var(--accent-red); font-weight: 600; }

/* Table Container (NATS Stream) */
.table-container {
    flex: 1;
    overflow-y: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.data-table th {
    background-color: rgba(255, 255, 255, 0.01);
    padding: 12px 16px;
    color: var(--text-secondary);
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    backdrop-filter: blur(8px);
    z-index: 1;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    color: var(--text-primary);
}

.data-table tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.data-table tr.flash-update {
    animation: flash 1s ease-out;
}

@keyframes flash {
    0% { background-color: rgba(59, 130, 246, 0.25); }
    100% { background-color: rgba(59, 130, 246, 0); }
}

.empty-row td {
    text-align: center;
    color: var(--text-muted);
    padding: 40px;
}

.streaming-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-green);
    background-color: var(--accent-green-glow);
    padding: 4px 8px;
    border-radius: 6px;
}

.streaming-indicator.purple-indicator {
    color: var(--accent-purple);
    background-color: var(--accent-purple-glow);
}

/* Status Badges for NATS status column */
.badge-status {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

.badge-status.published {
    background-color: var(--accent-green-glow);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-status.queued {
    background-color: rgba(245, 158, 11, 0.15);
    color: var(--accent-yellow);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-status.error {
    background-color: var(--accent-red-glow);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Driver Identification Badge in NATS table */
.driver-badge {
    background-color: rgba(59, 130, 246, 0.08);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.2);
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    font-family: var(--font-mono);
    white-space: nowrap;
}

/* Custom Checkbox */
.checkbox-container {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 24px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    user-select: none;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    height: 16px;
    width: 16px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--text-secondary);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.hidden {
    display: none !important;
}

.loading-state {
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
    font-size: 13px;
}

/* Grouped Stats Sections */
.stats-group {
    margin-bottom: 32px;
}

.stats-group:last-child {
    margin-bottom: 0;
}

.stats-group-header {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 8px;
}

.header-icon {
    font-size: 16px;
}

.charts-row {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.charts-row .chart-container {
    flex: 1;
    margin-top: 0;
    min-width: 0;
}

.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    margin-top: 20px;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-premium);
    height: 152px;
    position: relative;
    overflow: hidden;
}

.chart-container canvas {
    display: block;
    width: 100%;
    height: 110px;
}

.chart-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}