/* Weight & Balance Panel Styles */

.wb-section {
    margin-bottom: 8px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    cursor: pointer;
    user-select: none;
    background: var(--surface-color);
    transition: background-color 0.2s;
}

.section-header:hover {
    background: var(--hover-color);
}

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

.section-label {
    flex: 1;
    font-weight: 500;
}

.section-toggle {
    color: var(--text-secondary);
    font-size: 12px;
}

.section-content {
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.section-content.collapsed {
    max-height: 0;
}

.section-content.expanded {
    max-height: 2000px;
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

/* Fuel Mode Selector */

.fuel-mode-selector {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.fuel-mode-btn {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--surface-color);
    color: var(--text-color);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
}

.fuel-mode-btn:hover {
    background: var(--hover-color);
}

.fuel-mode-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Fuel Mode Selector in Main Control Panel */
.fuel-mode-selector-main {
    display: flex;
    gap: 8px;
    flex: 1 1 100%;
    margin-bottom: 0;
}

.fuel-mode-selector-main .fuel-mode-btn {
    flex: 1;
    font-size: 12px;
    padding: 6px 10px;
}

/* Weight Station Styles */

.weight-station {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px;
    margin-bottom: 8px;
}

.station-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.station-active {
    cursor: pointer;
}

.station-name {
    flex: 1;
    font-weight: 500;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    color: var(--text-secondary);
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: var(--danger-color);
    color: white;
}

.station-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.station-weight,
.station-arm {
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
    background: var(--surface-color);
    color: var(--text-color);
}

.station-weight:focus,
.station-arm:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Cargo Section Styles */

.cargo-summary {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px;
    margin-bottom: 12px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
}

.summary-row:last-child {
    margin-bottom: 0;
}

.summary-row span:first-child {
    color: var(--text-secondary);
    font-size: 13px;
}

.summary-row span:last-child {
    font-weight: 500;
}

.cargo-item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.cargo-item-row:hover {
    background: var(--hover-color);
    border-color: var(--primary-color);
}

.cargo-item-row.selected {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.item-label {
    font-weight: 500;
    font-size: 13px;
}

.item-stats {
    font-size: 12px;
    color: var(--text-secondary);
}

.cargo-item-row.selected .item-stats {
    color: rgba(255, 255, 255, 0.8);
}

/* Airdrop Indicator */
.cargo-item-row.airdrop {
    border-left: 3px solid #f39c12;
}

.airdrop-indicator {
    margin-right: 6px;
}

.airdrop-summary {
    color: #f39c12 !important;
    border-top: 1px dashed var(--border-color);
    padding-top: 6px;
    margin-top: 6px;
}

.airdrop-summary span:first-child {
    color: #f39c12 !important;
}

/* Passenger Section Row (Read-only) */
.passenger-section-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: var(--background-color);
    border: 1px solid #9b59b6;
    border-left: 3px solid #9b59b6;
    border-radius: 4px;
    margin-bottom: 4px;
}

.pax-section-name {
    font-weight: 500;
    font-size: 13px;
    color: #9b59b6;
}

.pax-section-info {
    flex: 1;
    font-size: 12px;
    color: var(--text-secondary);
}

.pax-section-rows {
    font-size: 11px;
    background: #9b59b6;
    color: white;
    padding: 2px 6px;
    border-radius: 3px;
}

/* Properties Section Styles */

.property-group {
    margin-bottom: 12px;
}

.property-group label {
    display: block;
}

.property-group label > span {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.property-input {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    background: var(--surface-color);
    color: var(--text-color);
}

.property-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Buttons */

.btn-small {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--surface-color);
    color: var(--text-color);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.btn-small:hover {
    background: var(--hover-color);
    border-color: var(--primary-color);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.btn-danger:hover {
    background: #c82333;
    border-color: #bd2130;
}

.add-station {
    width: 100%;
    margin-top: 8px;
}

.delete-item {
    width: 100%;
    margin-top: 4px;
}

/* Placeholder */

.placeholder {
    color: var(--text-secondary);
    font-size: 13px;
    text-align: center;
    padding: 20px;
    font-style: italic;
}

/* Weight & Balance Summary (Control Panel) */

.wb-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    padding: 12px 16px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    flex-wrap: wrap;
}

.summary-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 100px;
}

.summary-group label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.summary-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
}

.cg-status {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    text-align: center;
}

.cg-status.status-normal {
    background: #28a745;
    color: white;
}

.cg-status.status-warning {
    background: #ffc107;
    color: #000;
}

.cg-status.status-critical {
    background: #dc3545;
    color: white;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* CG Indicator Bar */

.cg-indicator {
    flex: 1;
    min-width: 200px;
}

.cg-bar {
    position: relative;
    height: 32px;
    background: linear-gradient(
        to right,
        #dc3545 0%,
        #ffc107 10%,
        #28a745 20%,
        #28a745 80%,
        #ffc107 90%,
        #dc3545 100%
    );
    border-radius: 16px;
    overflow: visible;
}

.cg-limits {
    position: absolute;
    top: -20px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-secondary);
}

.limit-forward,
.limit-aft {
    background: var(--surface-color);
    padding: 2px 6px;
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

.cg-marker {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 4px;
    height: 40px;
    background: white;
    border: 2px solid var(--text-color);
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: left 0.3s ease-out;
}

.cg-marker::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 8px solid var(--text-color);
}

.cg-marker::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 8px solid var(--text-color);
}

/* Zone Badges */

.zone-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.zone-badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.zone-badge.inactive {
    opacity: 0.4;
    filter: grayscale(100%);
}

.zone-badge.active {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Actions Row (Horizontal button layout) */

.actions-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.actions-row .btn-small {
    flex: 1;
    min-width: 100px;
}

/* Dark Mode Support */

@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #1a1a1a;
        --surface-color: #2d2d2d;
        --hover-color: #3d3d3d;
        --border-color: #404040;
        --text-color: #e0e0e0;
        --text-secondary: #a0a0a0;
        --primary-color: #4a9eff;
        --danger-color: #dc3545;
    }
}

/* Light Mode Defaults */

:root {
    --background-color: #f5f5f5;
    --surface-color: #ffffff;
    --hover-color: #f0f0f0;
    --border-color: #e0e0e0;
    --text-color: #333333;
    --text-secondary: #666666;
    --primary-color: #007bff;
    --danger-color: #dc3545;
}

/* Collapsible Charts Section */

.charts-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: #34495e;
    color: white;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s;
    border-radius: 4px;
    margin-bottom: 8px;
}

.charts-header:hover {
    background: #2c3e50;
}

.charts-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.charts-toggle-icon {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.charts-content {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
    padding: 0;
}

.charts-content.expanded {
    max-height: 800px;
    padding: 12px 0;
}

.charts-content.expanded .charts-toggle-icon {
    transform: rotate(90deg);
}

.charts-row {
    display: flex;
    gap: 16px;
    width: 100%;
}

.chart-container {
    flex: 1;
    min-width: 0;
}

.chart-container h4 {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
}

.chart-container svg {
    width: 100% !important;
    height: auto !important;
}