/**
 * stationSim Dashboard Styles
 *
 * Dark theme with accent colors for different states.
 * CSS Grid layout for responsive design.
 */

/* ============================================================
   CSS Variables
   ============================================================ */

:root {
    /* Colors */
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-tertiary: #2d2d2d;
    --bg-card: #333;

    --text-primary: #f0f0f0;
    --text-secondary: #aaa;
    --text-muted: #666;

    --accent-blue: #0099ff;
    --accent-green: #00cc44;
    --accent-yellow: #ffcc00;
    --accent-orange: #ff9900;
    --accent-red: #ff4444;
    --accent-purple: #cc00cc;

    /* Status colors */
    --status-available: #00cc44;
    --status-charging: #0099ff;
    --status-occupied: #ff9900;
    --status-error: #ff4444;
    --status-offline: #666;

    /* Battery SOC colors */
    --soc-high: #00cc44;
    --soc-medium: #ffcc00;
    --soc-low: #ff9900;
    --soc-critical: #ff4444;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* ============================================================
   Base Styles
   ============================================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============================================================
   Header
   ============================================================ */

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(36, 36, 36, 0.95) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

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

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-yellow), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header .subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.3px;
}

/* ============================================================
   Connection Warning
   ============================================================ */

.connection-warning {
    background-color: var(--accent-orange);
    color: #000;
    padding: var(--spacing-sm) var(--spacing-lg);
    text-align: center;
    font-weight: 500;
}

/* ============================================================
   Time Controls
   ============================================================ */

.time-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.connection-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-red);
}

.connection-indicator.connected .indicator-dot {
    background-color: var(--accent-green);
}

.indicator-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

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

.time-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.time-value {
    font-family: monospace;
    font-size: 0.875rem;
}

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

.scale-control label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.scale-control select {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--bg-card);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
}

/* ============================================================
   Main Content
   ============================================================ */

.main-content {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    min-height: 0; /* Important for flex child to shrink properly */
}

/* ============================================================
   Stations Section
   ============================================================ */

.stations-section h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.stats-bar {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: linear-gradient(145deg, var(--bg-secondary), rgba(36, 36, 36, 0.8));
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.stat:hover {
    background: rgba(0, 0, 0, 0.3);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-blue);
    line-height: 1;
    margin-bottom: 4px;
}

.stat:nth-child(1) .stat-value { color: var(--accent-blue); }
.stat:nth-child(2) .stat-value { color: var(--accent-green); }
.stat:nth-child(3) .stat-value { color: var(--accent-purple); }
.stat:nth-child(4) .stat-value { color: var(--accent-yellow); }
.stat:nth-child(5) .stat-value { color: var(--accent-orange); }

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Station Grid */
.station-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

/* ============================================================
   Station Card
   ============================================================ */

.station-card {
    background: linear-gradient(145deg, var(--bg-card) 0%, rgba(45, 45, 45, 0.8) 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.station-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--status-offline);
    transition: background var(--transition-normal);
}

.station-card.available::before {
    background: linear-gradient(90deg, var(--status-available), var(--accent-green));
}

.station-card.charging::before {
    background: linear-gradient(90deg, var(--status-charging), var(--accent-blue));
    animation: shimmer 2s infinite;
}

.station-card.busy::before {
    background: linear-gradient(90deg, var(--status-occupied), var(--accent-orange));
}

@keyframes shimmer {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.station-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.1);
}

.station-card.selected {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 1px var(--accent-blue), 0 8px 16px rgba(0, 153, 255, 0.2);
}

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

.station-title {
    flex: 1;
}

.station-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 2px;
    color: var(--text-primary);
}

.station-id {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: monospace;
    letter-spacing: 0.5px;
}

.card-edit-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 6px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-edit-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.station-metrics {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

.metric {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.metric-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
}

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

.metric-icon.battery-icon.battery-high {
    color: var(--soc-high);
    background: rgba(0, 204, 68, 0.1);
}

.metric-icon.battery-icon.battery-medium {
    color: var(--soc-medium);
    background: rgba(255, 204, 0, 0.1);
}

.metric-icon.battery-icon.battery-low {
    color: var(--soc-low);
    background: rgba(255, 153, 0, 0.1);
}

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

.solar-metric.active .metric-icon.solar-icon {
    color: var(--accent-yellow);
    background: rgba(255, 204, 0, 0.15);
}

.metric-text {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.2;
}

.metric-value.battery-high {
    color: var(--soc-high);
}

.metric-value.battery-medium {
    color: var(--soc-medium);
}

.metric-value.battery-low {
    color: var(--soc-low);
}

.metric-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.chargers-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.charger-indicators {
    display: flex;
    gap: var(--spacing-xs);
}

.charger-indicator {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.charger-indicator.available {
    color: var(--status-available);
    background: rgba(0, 204, 68, 0.1);
}

.charger-indicator.charging {
    color: var(--status-charging);
    background: rgba(0, 153, 255, 0.15);
    animation: pulse 1.5s infinite;
}

.charger-indicator.occupied {
    color: var(--status-occupied);
    background: rgba(255, 153, 0, 0.1);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.95); }
}

.charger-summary {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
}

.charging-badge {
    background: linear-gradient(135deg, var(--status-charging), #0077cc);
    color: #fff;
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.availability {
    color: var(--text-secondary);
}

/* ============================================================
   Detail Section
   ============================================================ */

.detail-section {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

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

.detail-header h2 {
    font-size: 1.25rem;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    line-height: 1;
}

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

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.detail-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.detail-card h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================================
   Charger Status
   ============================================================ */

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

.charger-status {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color var(--transition-fast);
}

.charger-status:hover {
    border-color: var(--bg-card);
}

.charger-status.selected {
    border-color: var(--accent-blue);
}

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

.charger-id {
    font-weight: 600;
}

.charger-state-badge {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 10px;
    text-transform: uppercase;
}

.charger-state-badge.state-available {
    background-color: var(--status-available);
    color: #000;
}

.charger-state-badge.state-charging {
    background-color: var(--status-charging);
    color: #fff;
}

.charger-state-badge.state-connected,
.charger-state-badge.state-connecting {
    background-color: var(--status-occupied);
    color: #000;
}

.charger-state-badge.state-faulted {
    background-color: var(--status-error);
    color: #fff;
}

.charger-state-badge.state-offline {
    background-color: var(--status-offline);
    color: #fff;
}

.protocol-states {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.protocol-state {
    font-size: 0.75rem;
}

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

.protocol-value {
    font-weight: 500;
    margin-left: var(--spacing-xs);
}

.protocol-value.cp-a { color: var(--text-muted); }
.protocol-value.cp-b { color: var(--accent-orange); }
.protocol-value.cp-c { color: var(--accent-green); }
.protocol-value.cp-d { color: var(--accent-blue); }
.protocol-value.cp-e { color: var(--accent-red); }
.protocol-value.cp-f { color: var(--accent-purple); }

.charging-info {
    margin-top: var(--spacing-sm);
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    padding: 2px 0;
}

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

.info-value {
    font-weight: 500;
}

.power-value {
    color: var(--accent-blue);
    font-size: 0.875rem;
}

.session-info {
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.session-id {
    font-family: monospace;
}

.technical-info {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--bg-card);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ============================================================
   Battery Gauge
   ============================================================ */

.battery-gauge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.gauge-container {
    position: relative;
    width: 160px;
    height: 160px;
}

.gauge-svg {
    width: 100%;
    height: 100%;
}

.gauge-arc {
    transition: stroke-dashoffset var(--transition-normal);
}

.gauge-arc.soc-high { stroke: var(--soc-high); }
.gauge-arc.soc-medium { stroke: var(--soc-medium); }
.gauge-arc.soc-low { stroke: var(--soc-low); }
.gauge-arc.soc-critical { stroke: var(--soc-critical); }

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

.soc-value {
    font-size: 2rem;
    font-weight: 700;
    display: block;
}

.soc-value.soc-high { color: var(--soc-high); }
.soc-value.soc-medium { color: var(--soc-medium); }
.soc-value.soc-low { color: var(--soc-low); }
.soc-value.soc-critical { color: var(--soc-critical); }

.soc-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.power-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.flow-arrow {
    font-size: 1.5rem;
}

.power-flow.charging .flow-arrow {
    color: var(--accent-green);
    animation: bounce-up 1s infinite;
}

.power-flow.discharging .flow-arrow {
    color: var(--accent-orange);
    animation: bounce-down 1s infinite;
}

.power-flow.idle .flow-arrow {
    color: var(--text-muted);
}

@keyframes bounce-up {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

@keyframes bounce-down {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

.power-value {
    font-size: 1.125rem;
    font-weight: 600;
}

.power-direction {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

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

.detail-item {
    text-align: center;
}

.detail-label {
    font-size: 0.625rem;
    color: var(--text-muted);
    text-transform: uppercase;
    display: block;
}

.detail-value {
    font-size: 0.875rem;
    font-weight: 500;
}

.detail-item.temp-hot .detail-value {
    color: var(--accent-red);
}

.detail-item.temp-warm .detail-value {
    color: var(--accent-orange);
}

.detail-item.temp-cold .detail-value {
    color: var(--accent-blue);
}

/* ============================================================
   Solar Chart
   ============================================================ */

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

.current-output {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.output-icon {
    font-size: 1.5rem;
    color: var(--accent-yellow);
}

.output-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-yellow);
}

.chart-container {
    height: 200px;
    width: 100%;
}

/* ============================================================
   NACS Protocol View
   ============================================================ */

.nacs-section {
    margin-top: var(--spacing-lg);
}

.nacs-protocol-view h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.protocol-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.protocol-section {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.protocol-section h4 {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

/* CP Visualization */
.cp-states {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.cp-state-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    opacity: 0.4;
}

.cp-state-item.active {
    opacity: 1;
    background-color: var(--bg-tertiary);
}

.state-letter {
    font-size: 1.25rem;
    font-weight: 700;
}

.state-voltage {
    font-size: 0.625rem;
    color: var(--text-muted);
}

.cp-current {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.cp-detail {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

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

/* ISO 15118 States */
.iso-states {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-height: 300px;
    overflow-y: auto;
}

.iso-state-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    opacity: 0.4;
}

.iso-state-item.completed {
    opacity: 0.6;
}

.iso-state-item.completed .state-dot {
    background-color: var(--accent-green);
}

.iso-state-item.active {
    opacity: 1;
}

.iso-state-item.active .state-dot {
    background-color: var(--accent-blue);
    animation: pulse 1.5s infinite;
}

.iso-state-item.error .state-dot {
    background-color: var(--accent-red);
}

.state-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-muted);
    flex-shrink: 0;
}

.state-name {
    font-size: 0.75rem;
    text-transform: capitalize;
}

.evse-state {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--bg-tertiary);
    font-size: 0.875rem;
}

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

.evse-state .value {
    margin-left: var(--spacing-sm);
    font-weight: 500;
}

/* Events Log */
.events-log {
    max-height: 300px;
    overflow-y: auto;
}

.event-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    font-size: 0.75rem;
    border-bottom: 1px solid var(--bg-tertiary);
}

.event-time {
    color: var(--text-muted);
    font-family: monospace;
    flex-shrink: 0;
}

.event-type {
    font-weight: 500;
}

.event-item.event-error .event-type {
    color: var(--accent-red);
}

.event-item.event-success .event-type {
    color: var(--accent-green);
}

.event-detail {
    color: var(--text-secondary);
}

.no-events {
    color: var(--text-muted);
    text-align: center;
    padding: var(--spacing-lg);
    font-style: italic;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--bg-tertiary);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.separator {
    color: var(--bg-tertiary);
}

/* ============================================================
   Section Header
   ============================================================ */

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

.section-header h2 {
    margin-bottom: 0;
}

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

/* ============================================================
   Buttons
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-fast), opacity var(--transition-fast);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background-color: #0077cc;
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-card);
}

.btn-danger {
    background-color: var(--accent-red);
    color: #fff;
}

.btn-danger:hover:not(:disabled) {
    background-color: #cc3333;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
}

.btn-icon {
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    border-radius: var(--radius-sm);
    background-color: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
}

.btn-icon:hover {
    background-color: var(--bg-tertiary);
}

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

.btn-icon.btn-danger:hover {
    background-color: rgba(255, 68, 68, 0.2);
}

/* ============================================================
   Modal
   ============================================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    position: relative;
    background: linear-gradient(160deg, var(--bg-secondary) 0%, #1e1e1e 100%);
    border-radius: var(--radius-lg);
    max-width: 640px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: slideUp 0.3s ease;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(0, 0, 0, 0.2);
}

.modal-header h2 {
    font-size: 1.25rem;
    margin: 0;
    font-weight: 600;
}

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

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(0, 0, 0, 0.2);
}

/* ============================================================
   Progress Overlay
   ============================================================ */

.progress-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1010;
    border-radius: var(--radius-lg);
}

.progress-dialog {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-xl);
    min-width: 280px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
}

.progress-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    animation: spin 1s linear infinite;
}

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

.progress-message {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-step {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============================================================
   Form Styles
   ============================================================ */

.form-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.form-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
}

.form-section h3 {
    font-size: 0.75rem;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.form-row {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.form-group input:hover,
.form-group select:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(0, 153, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(0, 153, 255, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* ============================================================
   Charger List in Form
   ============================================================ */

.charger-list {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.charger-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-fast);
}

.charger-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.charger-item:last-child {
    margin-bottom: 0;
}

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

.charger-name {
    font-weight: 600;
    font-family: monospace;
    color: var(--text-primary);
}

.charger-state {
    font-size: 0.6rem;
    padding: 3px 8px;
    border-radius: 10px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.charger-state.state-available {
    background: rgba(0, 204, 68, 0.2);
    color: var(--status-available);
}

.charger-state.state-charging {
    background: rgba(0, 153, 255, 0.2);
    color: var(--status-charging);
}

.no-chargers {
    color: var(--text-muted);
    text-align: center;
    padding: var(--spacing-lg);
    font-style: italic;
    font-size: 0.875rem;
}

.add-charger-form {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    padding: var(--spacing-md);
    background: rgba(0, 153, 255, 0.05);
    border-radius: var(--radius-md);
    border: 1px dashed rgba(0, 153, 255, 0.3);
}

.charger-id-input {
    width: 110px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: monospace;
}

.charger-power-input {
    width: 70px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    color: var(--text-primary);
    font-size: 0.875rem;
    text-align: right;
}

.charger-type-select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.unit {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============================================================
   Station Info Summary (Edit Mode)
   ============================================================ */

.station-info-summary {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--bg-tertiary);
}

.station-info-summary h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    text-transform: none;
}

.station-id-display {
    font-family: monospace;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

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

/* ============================================================
   Danger Zone
   ============================================================ */

.danger-zone {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: rgba(255, 68, 68, 0.1);
    border: 1px solid var(--accent-red);
    border-radius: var(--radius-md);
}

.danger-zone h3 {
    color: var(--accent-red);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.danger-zone p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* ============================================================
   Messages
   ============================================================ */

.message {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) var(--spacing-lg);
    font-size: 0.875rem;
}

.error-message {
    background-color: rgba(255, 68, 68, 0.2);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
}

.success-message {
    background-color: rgba(0, 204, 68, 0.2);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

/* ============================================================
   Responsive Adjustments
   ============================================================ */

/* ============================================================
   Solar Mode Toggle (Clean Style)
   ============================================================ */

.solar-mode-toggle {
    display: flex;
    gap: 0;
    background: #f5f5f5;
    border-radius: 4px;
    padding: 2px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
}

.mode-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: #666;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
}

.mode-btn:hover {
    color: #333;
    background: #e8e8e8;
}

.mode-btn.active {
    background: #007bff;
    color: #fff;
}

/* ============================================================
   Solar Array Management (Clean Light Style)
   ============================================================ */

.solar-array-management {
    background: #fff;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Array Summary - Top Stats */
.array-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    padding: 15px;
    background: #f5f5f5;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
}

.summary-stat {
    text-align: center;
}

.summary-stat .stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    display: block;
}

.summary-stat .stat-label {
    font-size: 0.75rem;
    color: #666;
    text-transform: uppercase;
    font-weight: 500;
}

/* String List */
.string-list {
    background: #fff;
    border-radius: 8px;
    margin-bottom: 20px;
    max-height: 350px;
    overflow-y: auto;
}

/* String Card */
.string-card {
    background: #fff;
    border-radius: 8px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    overflow: hidden;
}

.string-card:last-child {
    margin-bottom: 0;
}

.string-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: #f9f9f9;
    cursor: pointer;
    transition: background 0.2s;
    border-bottom: 1px solid #eee;
}

.string-header:hover {
    background: #f0f0f0;
}

.string-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.string-name {
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.string-orientation {
    font-size: 12px;
    color: #856404;
    background: #fff3cd;
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 500;
}

.string-stats {
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: #666;
}

.string-power {
    color: #e67e22;
    font-weight: 500;
}

.panel-count {
    color: #007bff;
    font-weight: 500;
}

.string-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn-expand {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    padding: 4px;
    font-size: 12px;
    transition: transform 0.2s;
}

.btn-expand.expanded {
    transform: rotate(180deg);
}

/* String Panels Section */
.string-panels {
    padding: 15px;
    background: #fff;
}

.panel-list {
    background: #f9f9f9;
    border-radius: 6px;
    padding: 8px;
    margin-bottom: 15px;
    border: 1px solid #eee;
}

.panel-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: #fff;
    border-radius: 4px;
    margin-bottom: 4px;
    font-size: 13px;
    border: 1px solid #eee;
}

.panel-item:last-child {
    margin-bottom: 0;
}

.panel-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.panel-position {
    font-weight: 600;
    color: #007bff;
    min-width: 28px;
}

.panel-model {
    color: #333;
}

.panel-wattage {
    font-size: 12px;
    color: #e67e22;
    font-weight: 500;
}

.panel-voltage {
    font-size: 12px;
    color: #666;
}

.no-panels {
    text-align: center;
    padding: 20px;
    color: #999;
    font-style: italic;
    font-size: 13px;
}

.no-strings {
    text-align: center;
    padding: 30px;
    color: #999;
    font-style: italic;
}

/* Add Panel Section */
.add-panel-section {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.panel-presets {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.presets-label {
    font-size: 12px;
    color: #666;
    font-weight: 500;
}

.preset-btn {
    padding: 4px 12px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 15px;
    color: #666;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.preset-btn:hover {
    background: #007bff;
    border-color: #007bff;
    color: #fff;
}

.add-panel-form {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.add-panel-form input {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    font-family: inherit;
}

.panel-id-input {
    width: 100px;
}

.panel-model-input {
    width: 120px;
}

.panel-wattage-input {
    width: 70px;
    text-align: right;
}

/* Add String Section */
.add-string-section {
    margin-top: 20px;
    padding: 15px;
    background: #f9f9f9;
    border-radius: 8px;
    border: 1px solid #ddd;
}

.add-string-section h4 {
    font-size: 13px;
    color: #333;
    font-weight: 600;
    margin-bottom: 12px;
}

.add-string-form .form-row {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
}

.add-string-form .form-row:last-child {
    margin-bottom: 0;
}

.string-id-input,
.string-name-input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    font-family: inherit;
}

.form-group-inline {
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group-inline label {
    font-size: 12px;
    color: #666;
    font-weight: 500;
}

.orientation-input {
    width: 60px;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    text-align: right;
    font-family: inherit;
}

.unit {
    font-size: 12px;
    color: #666;
}

/* Modal Width for Solar Management */
.station-management-modal {
    max-width: 680px;
}

/* Clean Button Styles for Solar Forms */
.solar-array-management .btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.solar-array-management .btn-primary {
    background-color: #007bff;
    color: #fff;
}

.solar-array-management .btn-primary:hover {
    background-color: #0056b3;
}

.solar-array-management .btn-secondary {
    background-color: #6c757d;
    color: #fff;
}

.solar-array-management .btn-secondary:hover {
    background-color: #545b62;
}

.solar-array-management .btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.solar-array-management .btn-icon {
    width: 28px;
    height: 28px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #666;
    cursor: pointer;
    transition: all 0.2s;
}

.solar-array-management .btn-icon:hover {
    background: #f5f5f5;
    border-color: #ccc;
}

.solar-array-management .btn-icon.btn-danger {
    color: #dc3545;
}

.solar-array-management .btn-icon.btn-danger:hover {
    background: #f8d7da;
    border-color: #dc3545;
}

/* ============================================================
   Tab Navigation
   ============================================================ */

.tab-navigation {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-xl);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

.tab-btn.active {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #fff;
}

.tab-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    flex: 1;
}

.tab-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    text-align: center;
    min-height: 400px;
}

.tab-placeholder h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

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

/* ============================================================
   Connection Status (Header)
   ============================================================ */

.connection-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: rgba(255, 68, 68, 0.1);
    border-radius: var(--radius-sm);
    border: 1px solid var(--accent-red);
}

.connection-status.connected {
    background-color: rgba(0, 204, 68, 0.1);
    border-color: var(--accent-green);
}

.connection-status .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-red);
}

.connection-status.connected .status-dot {
    background-color: var(--accent-green);
}

.connection-status .status-text {
    font-size: 0.75rem;
    color: var(--accent-red);
}

.connection-status.connected .status-text {
    color: var(--accent-green);
}

/* ============================================================
   Session Activity Chart
   ============================================================ */

.session-activity-chart {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    flex: 1;
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

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

.session-activity-chart .chart-header h2 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin: 0;
}

.session-activity-chart .chart-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.session-activity-chart .chart-controls label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.session-activity-chart .chart-controls select {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
}

.session-activity-chart .chart-container {
    flex: 1;
    min-height: 300px;
}

.session-activity-chart .no-data-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
    text-align: center;
    font-style: italic;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* ============================================================
   Session Detail Panel
   ============================================================ */

.session-detail-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    min-height: 200px;
}

.session-detail-panel.empty {
    display: flex;
    align-items: center;
    justify-content: center;
}

.session-detail-panel .panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.session-detail-panel .panel-header h3 {
    font-size: 1rem;
    color: var(--text-primary);
    margin: 0;
}

.session-detail-panel .panel-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.session-detail-panel .detail-section {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.session-detail-panel .detail-section h4 {
    font-size: 0.7rem;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.session-detail-panel .detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
}

.session-detail-panel .detail-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.session-detail-panel .detail-value {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.session-detail-panel .detail-value.highlight {
    color: var(--accent-blue);
}

.session-detail-panel .detail-value.energy-value {
    color: var(--accent-yellow);
    font-size: 1rem;
}

.session-detail-panel .detail-value.session-id {
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.session-detail-panel .status-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 600;
}

.session-detail-panel .status-badge.status-charging {
    background-color: var(--status-charging);
    color: #fff;
}

.session-detail-panel .status-badge.status-completed {
    background-color: var(--status-available);
    color: #000;
}

.session-detail-panel .status-badge.status-stopped {
    background-color: var(--status-occupied);
    color: #000;
}

.session-detail-panel .status-badge.status-error {
    background-color: var(--status-error);
    color: #fff;
}

.session-detail-panel .status-badge.status-unknown {
    background-color: var(--status-offline);
    color: #fff;
}

.session-detail-panel .empty-state {
    text-align: center;
    color: var(--text-muted);
}

.session-detail-panel .empty-state .empty-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.5;
}

.session-detail-panel .empty-state p {
    font-size: 0.875rem;
    font-style: italic;
}

/* ============================================================
   Responsive Adjustments
   ============================================================ */

/* ============================================================
   Station Activity History (Tab 2)
   ============================================================ */

.station-activity-history {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    flex: 1;
}

/* History Controls */
.history-controls {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.history-controls .control-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.history-controls .control-group label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.history-controls .station-selector,
.history-controls .timespan-selector {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    min-width: 150px;
}

.history-controls .station-selector:focus,
.history-controls .timespan-selector:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* History Content Layout */
.history-content {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: var(--spacing-lg);
    flex: 1;
    min-height: 0; /* Allow grid to shrink in flex context */
}

/* Left Column - Info Panels */
.history-left-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Info Panels */
.info-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.info-panel .panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.info-panel h3 {
    font-size: 0.875rem;
    color: var(--text-primary);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-panel .config-link {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs);
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1rem;
    transition: all var(--transition-fast);
    line-height: 1;
}

.info-panel .config-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.info-panel .panel-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.info-panel .info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
}

.info-panel .info-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.info-panel .info-value {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.info-panel .info-value.highlight-solar {
    color: var(--accent-yellow);
}

.info-panel .info-value.highlight-battery {
    color: var(--accent-green);
}

/* Right Column - Charts */
.history-right-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    min-width: 0; /* Prevent grid blowout */
}

/* Station History Chart */
.station-history-chart {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    position: relative;
    width: 100%;
    box-sizing: border-box;
}

.station-history-chart .chart-container {
    width: 100% !important;
    height: 300px !important;
    box-sizing: border-box;
}

.station-history-chart .chart-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-style: italic;
}

.station-history-chart .no-data-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
    pointer-events: none;
}

.station-history-chart .chart-loading {
    pointer-events: none;
}

/* Charge Session Chart */
.charge-session-chart {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    position: relative;
    width: 100%;
    box-sizing: border-box;
}

.charge-session-chart .chart-container {
    width: 100% !important;
    height: 280px !important;
    box-sizing: border-box;
}

.charge-session-chart .chart-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-style: italic;
}

.charge-session-chart .no-data-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
}

/* Session Popup in Charge Session Chart */
.charge-session-chart .session-popup {
    position: absolute;
    top: 50%;
    right: var(--spacing-lg);
    transform: translateY(-50%);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-width: 220px;
    z-index: 10;
}

.charge-session-chart .popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-weight: 600;
    font-size: 0.875rem;
}

.charge-session-chart .popup-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    padding: 0;
}

.charge-session-chart .popup-close:hover {
    color: var(--text-primary);
}

.charge-session-chart .popup-content {
    padding: var(--spacing-md);
}

.charge-session-chart .popup-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
    font-size: 0.8rem;
}

.charge-session-chart .popup-label {
    color: var(--text-muted);
}

.charge-session-chart .popup-value {
    color: var(--text-primary);
    font-weight: 500;
}

.charge-session-chart .popup-value.highlight {
    color: var(--accent-yellow);
}

/* No Station Selected State */
.no-station-selected {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    min-height: 400px;
}

.no-station-selected p {
    color: var(--text-muted);
    font-style: italic;
    font-size: 1rem;
}

/* ============================================================
   Station Configurator (Tab 3)
   ============================================================ */

.station-configurator {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    flex: 1;
}

/* Config Header */
.config-header {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
}

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

.config-controls .control-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.config-controls .control-group label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.config-controls .station-selector {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    min-width: 200px;
}

/* Config Messages */
.config-message {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

.config-message.error-message {
    background-color: rgba(255, 68, 68, 0.2);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
}

.config-message.success-message {
    background-color: rgba(0, 204, 68, 0.2);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

/* Config Sections Container */
.config-sections {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Individual Config Section */
.config-section {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.config-section.expanded {
    border-color: rgba(255, 255, 255, 0.1);
}

.config-section .section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.config-section .section-header:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.config-section .section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.config-section .section-icon {
    font-size: 1.25rem;
    opacity: 0.8;
}

.config-section .section-summary {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.config-section .section-summary .separator {
    color: var(--text-muted);
}

.config-section .expand-icon {
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.config-section .section-content {
    padding: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background-color: rgba(0, 0, 0, 0.1);
}

/* Charger List in Config */
.charger-list-config {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.charger-config-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.charger-config-item .charger-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.charger-config-item .charger-id {
    font-weight: 600;
    font-family: monospace;
    color: var(--text-primary);
}

.charger-config-item .charger-status {
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 10px;
    text-transform: uppercase;
    font-weight: 600;
}

.charger-config-item .charger-status.status-available {
    background-color: rgba(0, 204, 68, 0.2);
    color: var(--status-available);
}

.charger-config-item .charger-status.status-charging {
    background-color: rgba(0, 153, 255, 0.2);
    color: var(--status-charging);
}

.charger-config-item .charger-status.status-occupied {
    background-color: rgba(255, 153, 0, 0.2);
    color: var(--status-occupied);
}

.charger-config-item .charger-specs {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Add Item Form */
.add-item-form {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border: 1px dashed rgba(255, 255, 255, 0.1);
}

.add-item-form h4 {
    font-size: 0.8rem;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.add-item-form .form-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.add-item-form .form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.add-item-form .form-group label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.add-item-form .form-group input,
.add-item-form .form-group select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.add-item-form .form-group input:focus,
.add-item-form .form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* Config Form */
.config-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.config-form .form-row {
    display: flex;
    gap: var(--spacing-md);
}

.config-form .form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.config-form .form-group label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.config-form .form-group input,
.config-form .form-group select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.config-form .form-group input:focus,
.config-form .form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.config-form .form-info {
    padding: var(--spacing-md);
    background-color: rgba(0, 153, 255, 0.1);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent-blue);
}

.config-form .form-info p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Address Search */
.address-search-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.address-search-container > label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.address-input-row .address-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.address-input-row .address-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.address-input-row .address-input::placeholder {
    color: var(--text-muted);
}

.address-results {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    max-height: 200px;
    overflow-y: auto;
}

.address-result-item {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 2px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background-color var(--transition-fast);
}

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

.address-result-item:hover {
    background-color: rgba(0, 153, 255, 0.1);
}

.address-result-item .result-name {
    font-size: 0.85rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.address-result-item .result-coords {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: monospace;
}

.form-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-sm) 0;
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.form-divider span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-text {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    font-size: 1rem;
    line-height: 1;
}

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

/* Battery Status */
.battery-status {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.battery-status h4 {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.battery-status .status-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.battery-status .status-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.battery-status .status-label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.battery-status .status-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.battery-status .status-value.highlight {
    color: var(--accent-green);
}

/* Danger Section */
.config-section.danger-section {
    border-color: rgba(255, 68, 68, 0.3);
}

.config-section .danger-header {
    background-color: rgba(255, 68, 68, 0.1);
}

.config-section .danger-header .section-title {
    color: var(--accent-red);
}

.danger-warning {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* No Station Message */
.no-station-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    min-height: 400px;
    gap: var(--spacing-md);
}

.no-station-message p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* No Items Message */
.no-items {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
}

/* ============================================================
   Responsive Adjustments
   ============================================================ */

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .header-left {
        flex-direction: column;
        align-items: center;
    }

    .time-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .tab-navigation {
        flex-wrap: wrap;
        justify-content: center;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .tab-btn {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .stats-bar {
        flex-wrap: wrap;
        justify-content: center;
    }

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

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

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

    .session-detail-panel .panel-content {
        grid-template-columns: 1fr;
    }

    .add-panel-form {
        flex-direction: column;
    }

    .add-panel-form .form-group {
        width: 100%;
    }

    /* Tab 2 responsive */
    .history-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .history-content {
        grid-template-columns: 1fr;
    }

    .history-left-column {
        order: 2;
    }

    .history-right-column {
        order: 1;
    }
}


/* ============================================================
   Simulation Configurator (Tab 4)
   ============================================================ */

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

/* Connection Status Card */
.connection-status-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.connection-status-card.status-connected {
    border-left-color: var(--status-available);
}

.connection-status-card.status-disconnected {
    border-left-color: var(--status-error);
}

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

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-muted);
}

.status-connected .status-dot {
    background: var(--status-available);
    box-shadow: 0 0 8px var(--status-available);
}

.status-disconnected .status-dot {
    background: var(--status-error);
}

.status-text {
    font-weight: 600;
    color: var(--text-primary);
}

.connection-url {
    font-family: monospace;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Time Scale Control */
.time-scale-control {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.time-scale-control label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.time-scale-control strong {
    color: var(--accent-blue);
}

.scale-slider-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.scale-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--bg-secondary);
    outline: none;
    cursor: pointer;
}

.scale-slider::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
}

.scale-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
    border: none;
}

.scale-presets {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.preset-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.preset-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.preset-btn.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

/* Simulation State Panel */
.simulation-state-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.state-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.state-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
}

.state-icon {
    font-size: 1.2rem;
}

.state-label {
    font-weight: 600;
    text-transform: capitalize;
}

.state-indicator.state-running {
    color: var(--status-available);
}

.state-indicator.state-paused {
    color: var(--accent-yellow);
}

.state-indicator.state-stopped {
    color: var(--status-error);
}

.state-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-success {
    background: var(--status-available);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #00aa33;
}

.btn-warning {
    background: var(--accent-yellow);
    color: #1a1a1a;
}

.btn-warning:hover:not(:disabled) {
    background: #e6b800;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    text-align: center;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Simulation Time Display */
.sim-time-display {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.time-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--border-color);
}

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

.time-label {
    color: var(--text-secondary);
}

.time-value {
    font-family: monospace;
    color: var(--text-primary);
}

/* Info Grid for Advanced section */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

.info-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.info-value {
    color: var(--text-primary);
    font-weight: 500;
}

/* Loading State */
.loading-state {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

/* Form Hint */
.form-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Full Width Form Group */
.form-group.full-width {
    grid-column: 1 / -1;
}

/* Button Row */
.button-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

/* Small Button Variant */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.85rem;
}

/* ============================================================
   Station Map (Leaflet)
   ============================================================ */

.tab-content-map {
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0; /* Important for flex child to shrink properly */
}

.station-map-container {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0; /* Important for flex child to shrink properly */
    position: relative;
}

.map-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.map-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.map-legend {
    display: flex;
    gap: var(--spacing-md);
    margin-left: auto;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.map-view {
    flex: 1;
    min-height: 0; /* Allow flex to control height */
    background: var(--bg-primary);
}

/* Station marker styles */
.station-marker {
    background: transparent;
    border: none;
}

.marker-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.marker-dot:hover {
    transform: scale(1.3);
}

/* Leaflet tooltip override */
.station-tooltip {
    background: var(--bg-card) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5) !important;
    padding: 0 !important;
}

.station-tooltip .leaflet-tooltip-content {
    margin: 0;
}

.station-tooltip::before {
    border-top-color: var(--bg-card) !important;
}

.tooltip-content {
    padding: var(--spacing-sm) var(--spacing-md);
}

.tooltip-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tooltip-stats {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Custom hover tooltip (Vue-controlled, replaces Leaflet tooltip) */
.station-hover-tooltip {
    position: absolute;
    z-index: 1000;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    padding: var(--spacing-sm) var(--spacing-md);
    transform: translate(-50%, -100%);
    pointer-events: none;
    white-space: nowrap;
}

.station-hover-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--bg-card);
}

/* Station popup menu */
.station-popup-menu {
    position: absolute;
    z-index: 1000;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    min-width: 180px;
    transform: translate(-50%, -100%) translateY(-20px);
    animation: popup-in 0.15s ease-out;
}

@keyframes popup-in {
    from {
        opacity: 0;
        transform: translate(-50%, -100%) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -100%) translateY(-20px);
    }
}

.popup-header {
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

.popup-actions {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-xs);
}

.popup-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
    text-align: left;
}

.popup-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.popup-icon {
    font-size: 1rem;
}

.popup-close {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 2px 6px;
    line-height: 1;
}

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

/* Delete button in popup */
.popup-btn-danger {
    color: #ff4444;
}

.popup-btn-danger:hover {
    background: rgba(255, 68, 68, 0.2);
    color: #ff6666;
}

/* Relocate mode styles */
.station-map-container.relocate-mode .map-view {
    cursor: crosshair !important;
}

.station-map-container.relocate-mode .leaflet-container {
    cursor: crosshair !important;
}

.station-map-container.relocate-mode .station-marker {
    cursor: crosshair !important;
}

.relocate-banner {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 2px solid var(--accent-warning, #ff9900);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 1001;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    animation: banner-in 0.2s ease-out;
}

@keyframes banner-in {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.relocate-banner .relocate-icon {
    font-size: 1.25rem;
}

.relocate-banner strong {
    color: var(--text-primary);
}

.relocate-banner .btn {
    margin-left: var(--spacing-md);
}

/* Station count badge */
.map-station-count {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--bg-card);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-secondary);
    z-index: 1000;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================================
   Third-Party Station Markers (Open Charge Map)
   ============================================================ */

/* Third-party marker styles */
.third-party-marker {
    background: transparent;
    border: none;
}

.marker-dot-small {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.marker-dot-small:hover {
    transform: scale(1.4);
}

/* Updated legend styles for sections */
.legend-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.legend-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-right: var(--spacing-xs);
}

.legend-divider {
    width: 1px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 var(--spacing-sm);
}

.legend-dot-small {
    width: 8px;
    height: 8px;
}

/* Map controls group */
.map-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Badge on button */
.btn .badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    margin-left: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.2);
    border-radius: 9px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* Small loading spinner */
.loading-spinner-sm {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: var(--spacing-xs);
}

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

/* Warning button style */
.btn-warning {
    background: #ff9900 !important;
    color: #000 !important;
}

.warning-icon {
    margin-right: var(--spacing-xs);
}

/* Third-party tooltip styles */
.third-party-tooltip {
    border-color: rgba(153, 102, 255, 0.4);
}

.third-party-tooltip::after {
    border-top-color: var(--bg-card);
}

.tooltip-network {
    font-size: 0.75rem;
    color: #9966ff;
    margin-bottom: 4px;
}

.tooltip-connectors {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Third-party popup styles */
.third-party-popup {
    border-color: rgba(153, 102, 255, 0.3);
}

.third-party-popup .popup-header {
    border-bottom-color: rgba(153, 102, 255, 0.2);
}

.popup-details {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.popup-network {
    font-size: 0.8rem;
    color: #9966ff;
    font-weight: 500;
    margin-bottom: 4px;
}

.popup-address {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.popup-info {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.popup-connectors {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-style: italic;
}

/* Usage/Access styling for third-party stations */
.tooltip-usage {
    font-size: 0.7rem;
    color: #00cc44;
    margin-bottom: 4px;
}

.tooltip-usage.restricted {
    color: #ff9900;
}

.tooltip-access {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-style: italic;
}

.popup-usage {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: 6px;
}

.usage-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 3px;
    background: rgba(0, 204, 68, 0.2);
    color: #00cc44;
}

.popup-usage.restricted .usage-badge {
    background: rgba(255, 153, 0, 0.2);
    color: #ff9900;
}

.membership-badge {
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 3px;
    background: rgba(255, 68, 68, 0.2);
    color: #ff6666;
}

.popup-access {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    padding: 4px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.popup-cost {
    font-size: 0.75rem;
    color: #00cc44;
    margin-top: 6px;
    font-weight: 500;
}

/* Override Leaflet default styles for dark theme */
.leaflet-container {
    background: var(--bg-primary);
    font-family: inherit;
}

.leaflet-control-zoom {
    border: none !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
}

.leaflet-control-zoom a {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
    border: none !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
}

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

.leaflet-control-zoom a:last-child {
    border-bottom: none !important;
}

.leaflet-control-attribution {
    background: rgba(0, 0, 0, 0.5) !important;
    color: var(--text-muted) !important;
    font-size: 0.65rem !important;
}

.leaflet-control-attribution a {
    color: var(--text-secondary) !important;
}

/* ============================================================
   Station History Refresh Button & Loading Popup
   ============================================================ */

.history-controls .refresh-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--accent-blue);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
    margin-left: auto;
}

.history-controls .refresh-btn:hover:not(:disabled) {
    background-color: #0077cc;
}

.history-controls .refresh-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Loading Overlay for Station History */
.station-activity-history .loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.station-activity-history .loading-popup {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-xxl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.station-activity-history .loading-popup p {
    margin: 0;
    color: var(--text-primary);
    font-size: 1rem;
}

.station-activity-history .loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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