/**
 * Dashboard Styles - Tesla Dark Mode
 * Modern, responsive, glassmorphism design
 */

/* =====================================================
   CSS Variables - Color Palette
   ===================================================== */
:root {
    /* Dark Background Colors */
    --bg-primary: #0a0e1a;
    --bg-secondary: #121829;
    --bg-card: rgba(18, 24, 41, 0.8);
    --bg-card-hover: rgba(18, 24, 41, 0.95);

    /* Accent Colors */
    --accent-green: #00ff88;
    --accent-cyan: #00d9ff;
    --accent-orange: #ff6b35;
    --accent-red: #ff3366;
    --accent-yellow: #ffd700;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #718096;

    /* Status Colors */
    --status-online: #00ff88;
    --status-offline: #ff3366;
    --status-warning: #ffd700;

    /* Borders & Shadows */
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --glow-green: 0 0 20px rgba(0, 255, 136, 0.3);
    --glow-cyan: 0 0 20px rgba(0, 217, 255, 0.3);
    --glow-orange: 0 0 20px rgba(255, 107, 53, 0.3);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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;
    overflow-x: hidden;
}

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

/* =====================================================
   Header
   ===================================================== */
.header {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo i {
    font-size: 2rem;
    color: var(--accent-green);
    animation: pulse 2s ease-in-out infinite;
}

.logo h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-status {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.connection-status,
.last-update {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.connection-status i {
    font-size: 0.625rem;
}

.connection-status.connected i {
    color: var(--status-online);
    animation: blink 2s ease-in-out infinite;
}

.connection-status.disconnected i {
    color: var(--status-offline);
}

.last-update.stale {
    color: var(--accent-orange);
    font-weight: 500;
}

.last-update.stale i {
    color: var(--accent-orange);
    animation: pulse 2s ease-in-out infinite;
}

/* =====================================================
   Main Content
   ===================================================== */
.main {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
}

/* =====================================================
   Hero Section - Grid Status
   ===================================================== */
.hero-section {
    margin-bottom: var(--spacing-xl);
}

.grid-status-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.grid-status-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
}

.grid-status-card.power-on {
    border-color: var(--accent-green);
}

.grid-status-card.power-off {
    border-color: var(--accent-red);
}

.status-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border-color);
    flex-shrink: 0;
}

.status-icon i {
    font-size: 3rem;
    transition: all var(--transition-normal);
}

.power-on .status-icon i {
    color: var(--accent-green);
}

.power-off .status-icon i {
    color: var(--accent-red);
}

.status-content {
    flex: 1;
}

.status-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.status-indicator {
    margin-bottom: var(--spacing-md);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.status-badge.online {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
    box-shadow: var(--glow-green);
}

.status-badge.offline {
    background: rgba(255, 51, 102, 0.15);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
    box-shadow: var(--glow-orange);
}

.status-details {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.detail-item i {
    color: var(--accent-cyan);
}

.status-glow {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.power-on .status-glow {
    opacity: 1;
}

/* =====================================================
   Cards Grid
   ===================================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-cyan);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-title i {
    font-size: 1.5rem;
    color: var(--accent-cyan);
}

.card-title h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
}

.card-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
}

.card-badge i {
    font-size: 0.625rem;
}

.card-badge.charging {
    color: var(--accent-green);
    border-color: var(--accent-green);
    background: rgba(0, 255, 136, 0.1);
}

.card-badge.discharging {
    color: var(--accent-orange);
    border-color: var(--accent-orange);
    background: rgba(255, 107, 53, 0.1);
}

.card-badge.idle {
    color: var(--text-secondary);
}

.card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* =====================================================
   Battery Card - Circular Progress
   ===================================================== */
.battery-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.circular-progress {
    position: relative;
    width: 200px;
    height: 200px;
}

.progress-ring {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.05);
    stroke-width: 12;
}

.progress-ring-circle {
    fill: none;
    stroke: var(--accent-green);
    stroke-width: 12;
    stroke-linecap: round;
    stroke-dasharray: 534.07;
    stroke-dashoffset: 534.07;
    transition: stroke-dashoffset 1s ease, stroke 0.5s ease;
    filter: drop-shadow(0 0 8px currentColor);
}

.progress-ring-circle.low {
    stroke: var(--accent-orange);
}

.progress-ring-circle.critical {
    stroke: var(--accent-red);
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.progress-value {
    font-family: 'Poppins', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}

.progress-label {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-top: -0.5rem;
}

.battery-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.detail-row:hover {
    background: rgba(255, 255, 255, 0.06);
}

.detail-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.detail-label i {
    color: var(--accent-cyan);
}

.detail-value {
    font-weight: 600;
    font-size: 1rem;
}

/* =====================================================
   Load Card - Consumption Metrics
   ===================================================== */
.load-current {
    text-align: center;
    padding: var(--spacing-lg) 0;
    background: rgba(0, 217, 255, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.metric-large {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-xs);
}

.metric-value {
    font-family: 'Poppins', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    line-height: 1;
}

.metric-unit {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.metric-label {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.load-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(4px);
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 217, 255, 0.1);
    flex-shrink: 0;
}

.stat-icon i {
    color: var(--accent-cyan);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-weight: 600;
    font-size: 1.125rem;
    margin-top: 0.125rem;
}

/* =====================================================
   Mode Card - System Status & Energy Flow
   ===================================================== */
.mode-display {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.mode-icon {
    margin-bottom: var(--spacing-md);
}

.mode-icon i {
    font-size: 3rem;
    color: var(--accent-green);
}

.mode-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.energy-flow {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.flow-header {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
}

.flow-diagram {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
}

.flow-sources,
.flow-consumers {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.flow-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
}

.flow-item i {
    color: var(--accent-cyan);
    font-size: 1.25rem;
}

.flow-item span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.flow-item strong {
    font-size: 1rem;
    color: var(--text-primary);
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--accent-green);
    animation: slideRight 2s ease-in-out infinite;
}

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

.section-title {
    font-family: 'Poppins', sans-serif;
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title i {
    color: var(--accent-cyan);
}

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

.chart-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.chart-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-lg);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.chart-header h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
}

.chart-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.chart-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.chart-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.chart-btn.active {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border-color: var(--accent-cyan);
}

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

.chart-body canvas {
    max-height: 100%;
}

/* =====================================================
   Statistics Cards
   ===================================================== */
.stats-section {
    margin-bottom: var(--spacing-xl);
}

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

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-green);
}

.stat-card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 136, 0.1);
    flex-shrink: 0;
}

.stat-card-icon i {
    font-size: 1.75rem;
    color: var(--accent-green);
}

.stat-card-content {
    flex: 1;
}

.stat-card-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.stat-card-value {
    font-family: 'Poppins', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-card-sub {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat-card-sub span {
    font-weight: 600;
    color: var(--accent-cyan);
}

/* =====================================================
   Footer
   ===================================================== */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

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

.footer-left p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-right {
    display: flex;
    gap: var(--spacing-md);
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--accent-cyan);
}

/* =====================================================
   Toast Notifications
   ===================================================== */
.toast {
    position: fixed;
    bottom: -200px;
    right: var(--spacing-lg);
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    max-width: 400px;
    z-index: 2000;
    transition: bottom var(--transition-normal);
}

.toast.show {
    bottom: var(--spacing-lg);
}

.toast-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 217, 255, 0.1);
    flex-shrink: 0;
}

.toast-icon i {
    color: var(--accent-cyan);
    font-size: 1.25rem;
}

.toast.success .toast-icon {
    background: rgba(0, 255, 136, 0.1);
}

.toast.success .toast-icon i {
    color: var(--accent-green);
}

.toast.error .toast-icon {
    background: rgba(255, 51, 102, 0.1);
}

.toast.error .toast-icon i {
    color: var(--accent-red);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.toast-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

/* =====================================================
   Animations
   ===================================================== */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

@keyframes slideRight {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(8px);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =====================================================
   Responsive Design - Mobile First
   ===================================================== */

/* Tablets (768px and up) */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .grid-status-card {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-lg);
    }

    .status-icon {
        width: 80px;
        height: 80px;
    }

    .status-icon i {
        font-size: 2.5rem;
    }

    .status-title {
        font-size: 1.5rem;
    }

    .status-details {
        justify-content: center;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .chart-body {
        height: 250px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .toast {
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        max-width: calc(100% - 2rem);
    }
}

/* Mobile (480px and down) */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .logo h1 {
        font-size: 1.25rem;
    }

    .status-icon {
        width: 60px;
        height: 60px;
    }

    .status-icon i {
        font-size: 2rem;
    }

    .circular-progress {
        width: 160px;
        height: 160px;
    }

    .progress-value {
        font-size: 2.5rem;
    }

    .metric-value {
        font-size: 2.5rem;
    }

    .metric-unit {
        font-size: 1.25rem;
    }

    .flow-diagram {
        flex-direction: column;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }
}

/* =====================================================
   Utility Classes
   ===================================================== */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--text-muted);
}

.text-success {
    color: var(--accent-green);
}

.text-warning {
    color: var(--accent-orange);
}

.text-danger {
    color: var(--accent-red);
}

.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

/* =====================================================
   Power Timeline Chart
   ===================================================== */

.timeline-chart-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    margin-bottom: var(--spacing-lg);
}

.timeline-chart-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-lg);
}

.timeline-chart-card .chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline-chart-card .chart-header h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.timeline-chart-card .chart-header h3 i {
    color: var(--accent-cyan);
}

.timeline-chart-card .chart-body {
    margin-bottom: var(--spacing-lg);
}

/* Timeline Summary Grid */
.timeline-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.timeline-stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-normal);
}

.timeline-stat-card:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.05);
}

.timeline-stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.timeline-stat-card.grid-on .timeline-stat-icon {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent-green);
}

.timeline-stat-card.battery-mode .timeline-stat-icon {
    background: rgba(255, 107, 53, 0.15);
    color: var(--accent-orange);
}

.timeline-stat-card.outages .timeline-stat-icon {
    background: rgba(255, 51, 102, 0.15);
    color: var(--accent-red);
}

.timeline-stat-card.avg-duration .timeline-stat-icon {
    background: rgba(0, 217, 255, 0.15);
    color: var(--accent-cyan);
}

.timeline-stat-content {
    flex: 1;
}

.timeline-stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.timeline-stat-value {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.timeline-stat-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .timeline-summary-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .timeline-stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .timeline-stat-value {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .timeline-summary-grid {
        grid-template-columns: 1fr;
    }
}