/* =============================================================================
   VARTA MAX TACTICAL UI - Dark Military OSINT Theme
   Ukrainian Color Scheme (Blue #005BBB, Yellow #FFD500)
   ============================================================================= */

/* CSS Variables - Color Palette */
:root {
    /* Ukrainian Flag Colors */
    --ua-blue: #005BBB;
    --ua-blue-light: #0077E6;
    --ua-blue-dark: #003D7A;
    --ua-yellow: #FFD500;
    --ua-yellow-light: #FFE34D;
    --ua-yellow-dim: #B39700;

    /* Background Layers (darkest to lightest) */
    --bg-base: #0a0c0f;
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #1c2128;
    --bg-elevated: #21262d;
    --bg-hover: #292e36;

    /* Text Colors */
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-tertiary: #6e7681;
    --text-muted: #484f58;

    /* Threat Level Colors */
    --threat-clear: #238636;
    --threat-suspicious: #d29922;
    --threat-warning: #e3b341;
    --threat-critical: #da3633;
    --threat-emergency: #a371f7;
    --threat-fault: #6e7681;

    /* Status Colors */
    --status-online: #3fb950;
    --status-degraded: #d29922;
    --status-offline: #6e7681;
    --status-fault: #da3633;

    /* Accent Colors */
    --accent-primary: var(--ua-blue);
    --accent-secondary: var(--ua-yellow);
    --accent-highlight: var(--ua-blue-light);

    /* Border Colors */
    --border-default: #30363d;
    --border-muted: #21262d;
    --border-accent: var(--ua-blue);

    /* Grid/Map Colors */
    --grid-line: rgba(0, 91, 187, 0.15);
    --grid-line-major: rgba(0, 91, 187, 0.3);
    --range-ring: rgba(255, 213, 0, 0.2);

    /* Fonts */
    --font-mono: 'Share Tech Mono', 'Courier New', monospace;
    --font-ui: 'Rajdhani', 'Arial', sans-serif;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;

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

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-ui);
    font-size: 14px;
    line-height: 1.4;
    color: var(--text-primary);
    background: var(--bg-base);
    display: flex;
    flex-direction: column;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-default);
    border-radius: 3px;
}

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

/* =============================================================================
   COMMAND BAR (Header)
   ============================================================================= */

.command-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    padding: 0 var(--spacing-lg);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 1px solid var(--border-default);
    z-index: 100;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--ua-blue);
}

.varta-logo {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 8px rgba(0, 91, 187, 0.5));
}

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

.logo-title {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
}

.logo-subtitle {
    font-size: 10px;
    font-weight: 500;
    color: var(--ua-yellow);
    letter-spacing: 1px;
    text-transform: uppercase;
}

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

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

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--status-offline);
    box-shadow: 0 0 8px currentColor;
}

.status-dot.online {
    background: var(--status-online);
    box-shadow: 0 0 8px var(--status-online);
    animation: pulse-online 2s infinite;
}

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

.status-dot.fault {
    background: var(--status-fault);
    box-shadow: 0 0 8px var(--status-fault);
    animation: pulse-fault 1s infinite;
}

@keyframes pulse-online {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@keyframes pulse-fault {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.status-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.threat-level-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: 4px;
}

.threat-label {
    font-size: 9px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
}

.threat-value {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
}

.threat-value.clear { color: var(--threat-clear); }
.threat-value.suspicious { color: var(--threat-suspicious); }
.threat-value.threat { color: var(--threat-warning); }
.threat-value.critical { color: var(--threat-critical); }
.threat-value.emergency { color: var(--threat-emergency); animation: blink-emergency 0.5s infinite; }

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

.time-section {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.utc-time {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    color: var(--ua-yellow);
    letter-spacing: 1px;
}

.local-time {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-tertiary);
}

/* =============================================================================
   MAIN CONTENT AREA
   ============================================================================= */

.main-content {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* Sidebars */
.sidebar {
    width: 280px;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border-color: var(--border-default);
    overflow: hidden;
}

.left-sidebar {
    border-right: 1px solid var(--border-default);
}

.right-sidebar {
    border-left: 1px solid var(--border-default);
}

/* Panels */
.panel {
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid var(--border-muted);
    min-height: 0;       /* allow flex children to shrink below content size */
}

.panel:last-child {
    flex: 1;
    border-bottom: none;
}

/* Sensor panel — share space with alerts, scroll when many sensors */
.sensor-panel {
    flex: 1 1 50%;
    min-height: 0;
    max-height: 60%;
}

.sensor-panel .panel-content {
    flex: 1;
    overflow-y: auto;
}

/* Alerts panel — share remaining left sidebar space */
.alerts-panel {
    flex: 1 1 50%;
    min-height: 80px;
}

/* Active tracks panel — fill available space and scroll */
.detections-panel {
    flex: 1;
    min-height: 0;
}

/* Collapsible panel body */
.collapsible-body {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Details panel — compact by default, scroll when content is shown */
.details-panel {
    flex: 0 1 auto;
    max-height: 45%;
    overflow-y: auto;
    min-height: 0;
}

.details-panel .panel-content {
    overflow-y: auto;
}

/* History panel — compact */
.history-panel {
    flex: 0 0 auto;
}

/* Captures panel — collapsible, between signature review and history */
.captures-panel {
    flex: 0 1 auto;
    max-height: 40%;
    min-height: 0;
    position: relative;
}

.captures-panel .panel-content {
    overflow-y: auto;
}

.captures-table-wrap {
    overflow-x: auto;
}

.captures-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11px;
    font-family: var(--font-mono);
}

.captures-table thead th {
    padding: 4px 6px;
    text-align: left;
    font-size: 9px;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-muted);
    white-space: nowrap;
}

.captures-table tbody tr {
    cursor: pointer;
    border-bottom: 1px solid var(--border-muted);
    transition: background 0.15s;
}

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

.captures-table tbody tr.selected {
    background: rgba(0, 91, 187, 0.15);
}

.captures-table tbody td {
    padding: 4px 6px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80px;
}

.captures-table tbody td.cap-class {
    color: #58a6ff;
}

.captures-table tbody td.cap-unreviewed {
    position: relative;
}

.captures-table tbody td.cap-unreviewed::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 2px;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--ua-yellow);
}

.captures-empty {
    text-align: center;
    padding: 16px;
    color: var(--text-muted);
    font-size: 11px;
}

.captures-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 4px 6px;
    font-size: 10px;
    color: var(--text-muted);
}

.captures-pagination button {
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 10px;
}

.captures-pagination button:hover {
    background: var(--bg-hover);
}

.captures-pagination button:disabled {
    opacity: 0.4;
    cursor: default;
}

/* Capture detail overlay */
.capture-detail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 10;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.capture-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-muted);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.capture-detail-header .close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    padding: 0 4px;
}

.capture-detail-body {
    padding: 10px 12px;
    font-size: 12px;
}

.capture-detail-body .detail-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px solid var(--border-muted);
}

.capture-detail-body .detail-row .dk {
    color: var(--text-muted);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.capture-detail-body .detail-row .dv {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 11px;
    text-align: right;
    word-break: break-all;
}

.capture-detail-body .meta-section {
    margin-top: 8px;
    padding-top: 6px;
    border-top: 1px solid var(--border-default);
}

.capture-detail-body .meta-section h4 {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.capture-detail-body .meta-json {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-default);
    border-radius: 6px;
    padding: 8px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 200px;
    overflow-y: auto;
}

/* Capture Feature Card */
.capture-feature-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 4px;
}

.feature-section {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-default);
    border-radius: 6px;
    padding: 8px;
}

.feature-section-title {
    font-size: 10px;
    font-weight: 700;
    color: var(--ua-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.feature-row {
    display: flex;
    justify-content: space-between;
    padding: 2px 0;
    font-size: 11px;
}

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

.feature-value {
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* Match Score Bar */
.match-score-bar {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    overflow: hidden;
    margin-top: 2px;
}

.match-score-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Spectrogram Container */
.spectrogram-container {
    margin-top: 4px;
}

.spectrogram-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 10px;
    font-weight: 700;
    color: var(--ua-blue);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.spectrogram-download {
    font-size: 9px;
    color: var(--text-secondary);
    text-decoration: none;
    border: 1px solid var(--border-default);
    padding: 2px 6px;
    border-radius: 3px;
}

.spectrogram-download:hover {
    color: var(--text-primary);
    border-color: var(--ua-blue);
}

.spectrogram-img-wrap {
    background: #000;
    border: 1px solid var(--border-default);
    border-radius: 6px;
    overflow: hidden;
}

.spectrogram-img {
    width: 100%;
    display: block;
    object-fit: contain;
}

/* Signature Edit Form */
.sig-edit-form {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-default);
    border-radius: 6px;
    padding: 10px;
}

.sig-edit-fields {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
}

.sig-edit-fields label {
    font-size: 10px;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sig-input {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 11px;
    padding: 4px 6px;
    font-family: var(--font-mono);
}

.sig-input:focus {
    outline: none;
    border-color: var(--ua-blue);
}

.sig-checkbox {
    flex-direction: row !important;
    align-items: center;
    gap: 6px !important;
}

/* Compare-All List */
.compare-all-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 300px;
    overflow-y: auto;
}

.compare-all-item {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 2px 8px;
    padding: 6px 8px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    cursor: pointer;
}

.compare-all-item:hover {
    border-color: var(--ua-blue);
    background: rgba(0, 120, 212, 0.08);
}

.compare-all-name {
    font-size: 11px;
    color: var(--text-primary);
    grid-column: 1;
}

.compare-all-type {
    font-size: 9px;
    color: var(--text-secondary);
    grid-column: 1;
}

.compare-all-score {
    grid-column: 2;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    min-width: 60px;
}

.compare-all-details {
    grid-column: 1 / -1;
    display: flex;
    gap: 4px;
    margin-top: 2px;
}

/* Delta Indicators */
.delta-match {
    font-size: 9px;
    padding: 1px 4px;
    border-radius: 2px;
    background: rgba(0, 255, 0, 0.12);
    color: #0f0;
}

.delta-mismatch {
    font-size: 9px;
    padding: 1px 4px;
    border-radius: 2px;
    background: rgba(255, 85, 85, 0.12);
    color: #f55;
}

/* A/B Comparison */
.ab-comparison {
    margin-top: 4px;
}

.ab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.ab-panels {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 8px;
}

.ab-panel {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-default);
    border-radius: 6px;
    padding: 8px;
}

.ab-panel-title {
    font-size: 10px;
    font-weight: 700;
    color: var(--ua-blue);
    margin-bottom: 6px;
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ab-deltas {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    font-size: 10px;
    text-align: center;
}

/* Merge UI */
.merge-modal-content {
    margin-top: 4px;
}

.merge-mode-select {
    margin-bottom: 8px;
}

.merge-target-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 250px;
    overflow-y: auto;
}

.merge-target-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    cursor: pointer;
}

.merge-target-item:hover {
    border-color: var(--ua-blue);
    background: rgba(0, 120, 212, 0.08);
}

.merge-target-name {
    flex: 1;
    font-size: 11px;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Unreviewed badge highlight */
.count-badge.unreviewed {
    background: rgba(255, 213, 0, 0.15);
    color: var(--ua-yellow);
}

/* FPV Video Feed Panel */
.video-feed-panel {
    flex: 0 1 auto;
    max-height: 50%;
    min-height: 0;
    position: relative;
}

.video-feed-panel .panel-content {
    overflow-y: auto;
}

.video-feed-container {
    display: flex;
    flex-direction: column;
}

.video-feed-img-wrap {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 aspect ratio */
    background: var(--bg-primary);
    overflow: hidden;
}

.video-feed-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #0a0a0a;
}

.video-unavailable {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
    background: #0a0a0a;
}

.video-disclaimer-badge {
    font-size: 9px !important;
    padding: 1px 5px !important;
}

.video-available-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green, #22c55e);
    animation: video-pulse 1.5s ease-in-out infinite;
    margin-left: 4px;
    vertical-align: middle;
}

@keyframes video-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Signature panel — compact, collapsible */
.signature-panel {
    flex: 0 0 auto;
}

.panel-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-muted);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.panel-icon {
    width: 16px;
    height: 16px;
    color: var(--ua-blue);
    stroke-width: 1.5;
    fill: none;
    stroke: currentColor;
}

.count-badge {
    margin-left: auto;
    padding: 2px 8px;
    background: var(--bg-elevated);
    border-radius: 10px;
    font-size: 10px;
    color: var(--text-tertiary);
}

.count-badge.alert {
    background: var(--threat-critical);
    color: white;
}

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

.panel-content.scrollable {
    flex: 1;
    overflow-y: auto;
}

.panel-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-muted);
}

/* Sensor Items */
.sensor-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-muted);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sensor-item:hover {
    background: var(--bg-hover);
    border-color: var(--ua-blue);
}

.sensor-item.selected {
    border-color: var(--ua-blue);
    box-shadow: 0 0 0 1px var(--ua-blue);
}

.sensor-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border-radius: 4px;
    color: var(--ua-blue);
}

.sensor-info {
    flex: 1;
    min-width: 0;
}

.sensor-name {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sensor-type {
    font-size: 10px;
    color: var(--text-tertiary);
}

.sensor-status {
    padding: 2px 8px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.sensor-status.online {
    background: rgba(63, 185, 80, 0.15);
    color: var(--status-online);
}

.sensor-status.degraded {
    background: rgba(210, 153, 34, 0.15);
    color: var(--status-degraded);
}

.sensor-status.offline {
    background: rgba(110, 118, 129, 0.15);
    color: var(--status-offline);
}

.sensor-status.fault {
    background: rgba(218, 54, 51, 0.15);
    color: var(--status-fault);
}

.sensor-degrade-reasons {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--status-degraded);
    margin-top: 2px;
    line-height: 1.3;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sensor-gps-warning {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--status-degraded);
    background: rgba(255, 193, 7, 0.15);
    border: 1px solid rgba(255, 193, 7, 0.4);
    border-radius: 3px;
    padding: 3px 6px;
    margin-top: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.sensor-gps-warning:hover {
    background: rgba(255, 193, 7, 0.25);
}

.sensor-gps-warning .warning-icon {
    margin-right: 4px;
}

/* sensor-item hover: canonical definition at line ~438 (bg-hover + ua-blue border) */

/* Alert Items */
.alert-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-left: 3px solid var(--threat-critical);
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.alert-item:hover {
    background: var(--bg-hover);
}

.alert-item.suspicious { border-left-color: var(--threat-suspicious); }
.alert-item.threat { border-left-color: var(--threat-warning); }
.alert-item.critical { border-left-color: var(--threat-critical); }
.alert-item.emergency { border-left-color: var(--threat-emergency); animation: alert-pulse 1s infinite; }

@keyframes alert-pulse {
    0%, 100% { background: var(--bg-tertiary); }
    50% { background: rgba(218, 54, 51, 0.15); }
}

.alert-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
    min-width: 0;
}

.alert-type {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
}

.alert-details {
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.alert-time {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* Alert Filter Bar */
.alert-filter-bar {
    display: flex;
    gap: 6px;
    align-items: center;
    padding: 6px 10px;
    border-bottom: 1px solid var(--border-muted);
}

.filter-select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-family: var(--font-mono);
    flex: 1;
}

/* Alert acknowledge/dismiss buttons */
.alert-actions {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-left: auto;
    flex-shrink: 0;
}

.alert-ack-btn {
    width: 18px;
    height: 18px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.alert-ack-btn:hover { color: var(--status-online); }
.alert-ack-btn[data-action="dismiss"]:hover { color: var(--threat-critical); }

/* Acknowledged alert */
.alert-item.acknowledged { opacity: 0.5; }
.alert-item.acknowledged .alert-ack-btn[data-action="ack"] { color: var(--status-online); }

/* Small button variant */
.btn.btn-sm {
    padding: 2px 8px;
    font-size: 10px;
    letter-spacing: 0.5px;
}

/* Track Items */
.track-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-muted);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.track-item:hover {
    background: var(--bg-hover);
    border-color: var(--ua-blue);
}

.track-item.selected {
    border-color: var(--ua-yellow);
    box-shadow: 0 0 0 1px var(--ua-yellow);
}

.track-item.hostile {
    border-left: 3px solid var(--threat-critical);
}

.track-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.track-info {
    flex: 1;
    min-width: 0;
}

.track-id {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.track-class {
    font-size: 10px;
    color: var(--ua-yellow);
    text-transform: uppercase;
}

.track-metrics-mini {
    display: flex;
    gap: var(--spacing-md);
    margin-top: 4px;
}

.track-metric {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
}

.track-metric .value {
    color: var(--text-secondary);
}

.track-movement-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.movement-arrow {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
}

.movement-arrow.approaching {
    color: var(--threat-critical);
    animation: pulse-approach 1s infinite;
}

.movement-arrow.retreating {
    color: var(--threat-clear);
}

@keyframes pulse-approach {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.movement-label {
    font-family: var(--font-mono);
    font-size: 8px;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

/* =============================================================================
   MAP CONTAINER
   ============================================================================= */

.map-container {
    flex: 1;
    position: relative;
    background: var(--bg-base);
}

#tacticalMap {
    width: 100%;
    height: 100%;
    background: var(--bg-base);
}

/* Leaflet Overrides for Dark Theme */
.leaflet-container {
    background: var(--bg-base);
    font-family: var(--font-ui);
}

/* Default: invert light maps (Street, Topo, Terrain) to dark tactical look */
.leaflet-tile-pane {
    filter: brightness(0.6) invert(1) contrast(3) hue-rotate(200deg) saturate(0.3) brightness(0.7);
}

/* Satellite: keep natural imagery, just dim for dark UI */
[data-active-layer="Satellite"] .leaflet-tile-pane {
    filter: brightness(0.85) contrast(1.1) saturate(0.9);
}

/* Dark/Night: already dark, no filter needed */
[data-active-layer="Dark"] .leaflet-tile-pane {
    filter: none;
}

/* Offline: canvas layer, no filter needed */
[data-active-layer="Offline"] .leaflet-tile-pane {
    filter: none;
}

.leaflet-control-zoom {
    border: 1px solid var(--border-default) !important;
    border-radius: 4px !important;
    overflow: hidden;
}

.leaflet-control-zoom a {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-bottom: 1px solid var(--border-default) !important;
    width: 32px !important;
    height: 32px !important;
    line-height: 32px !important;
}

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

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

.leaflet-control-attribution {
    background: rgba(13, 17, 23, 0.8) !important;
    color: var(--text-muted) !important;
    font-size: 9px !important;
}

/* Map Controls Overlay */
.map-controls {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 1000;
}

.map-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.map-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--ua-blue);
}

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

.map-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    stroke: currentColor;
    stroke-width: 1.5;
}

/* Map Layer Quick Switch */
.map-layer-switch {
    position: absolute;
    bottom: 60px;
    right: var(--spacing-lg);
    display: flex;
    flex-direction: row;
    gap: 2px;
    z-index: 1000;
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    padding: 2px;
}

.layer-btn {
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: 2px;
}

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

.layer-btn.active {
    background: var(--ua-blue);
    color: white;
}

/* Coordinates Display */
.coords-display {
    position: absolute;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(13, 17, 23, 0.9);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    z-index: 1000;
}

/* Scale Bar */
.scale-bar {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1000;
}

.scale-line {
    width: 100px;
    height: 2px;
    background: var(--ua-yellow);
    position: relative;
}

.scale-line::before,
.scale-line::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 8px;
    background: var(--ua-yellow);
    top: -3px;
}

.scale-line::before { left: 0; }
.scale-line::after { right: 0; }

.scale-text {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--ua-yellow);
    margin-top: 4px;
}

/* =============================================================================
   STATUS BAR (Footer)
   ============================================================================= */

.status-bar {
    display: flex;
    align-items: center;
    height: 32px;
    padding: 0 var(--spacing-lg);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-default);
    gap: var(--spacing-xl);
}

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

.status-item .label {
    font-size: 9px;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
}

.status-item .value {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
}

.status-item.version {
    margin-left: auto;
}

/* =============================================================================
   BUTTONS
   ============================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: 1px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--ua-blue);
    color: white;
    border-color: var(--ua-blue);
}

.btn-primary:hover {
    background: var(--ua-blue-light);
    border-color: var(--ua-blue-light);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border-color: var(--border-default);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--ua-blue);
}

/* btn-warning: canonical definition at line ~2153 (yellow/degraded).
   MARK HOSTILE button uses btn-danger (red) instead. */

/* =============================================================================
   MODAL
   ============================================================================= */

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    width: 400px;
    max-width: 90vw;
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: 8px;
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-muted);
}

.modal-header h2 {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.close-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 20px;
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

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

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

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-muted);
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-group label {
    display: block;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

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

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

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

.form-row .form-group {
    flex: 1;
}

.hint {
    font-size: 11px;
    color: var(--text-tertiary);
    font-style: italic;
}

/* =============================================================================
   TRACK DETAILS PANEL
   ============================================================================= */

.no-selection {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
    text-align: center;
}

.no-selection svg {
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
}

.track-detail {
    padding: var(--spacing-md);
}

.track-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-muted);
}

.track-icon-large {
    width: 48px;
    height: 48px;
}

.track-id-section {
    flex: 1;
}

.track-detail .track-id {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.track-detail .track-class {
    font-size: 11px;
    color: var(--ua-yellow);
    text-transform: uppercase;
}

.threat-badge {
    padding: 4px 12px;
    background: rgba(218, 54, 51, 0.15);
    border: 1px solid var(--threat-critical);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--threat-critical);
    text-transform: uppercase;
}

.threat-badge.clear {
    background: rgba(35, 134, 54, 0.15);
    border-color: var(--threat-clear);
    color: var(--threat-clear);
}

.threat-badge.suspicious {
    background: rgba(210, 153, 34, 0.15);
    border-color: var(--threat-suspicious);
    color: var(--threat-suspicious);
}

.track-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.metric {
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: 4px;
}

.metric-label {
    display: block;
    font-size: 9px;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.metric-value.signal {
    color: var(--ua-yellow);
}

.track-position,
.track-movement {
    margin-bottom: var(--spacing-lg);
}

.position-header,
.movement-header,
.bearing-header {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.position-data {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
}

.track-bearing {
    margin-bottom: var(--spacing-lg);
}

.bearing-data {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
    border-left: 3px solid #00a86b;
}

.bearing-deg {
    font-weight: 700;
    color: #00a86b;
}

.bearing-quality.good { color: #00a86b; }
.bearing-quality.fair { color: #d29922; }
.bearing-quality.poor { color: #f85149; }

.bearing-sensor {
    color: var(--text-tertiary);
    font-size: 10px;
}

.movement-data {
    display: flex;
    gap: var(--spacing-md);
}

.movement-item {
    flex: 1;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: 4px;
    text-align: center;
}

.movement-item .label {
    display: block;
    font-size: 9px;
    color: var(--text-tertiary);
    margin-bottom: 2px;
}

.movement-item .value {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.movement-item .value.approaching {
    color: var(--threat-critical);
}

.movement-item .value.retreating {
    color: var(--threat-clear);
}

.track-actions {
    display: flex;
    gap: var(--spacing-md);
}

.track-actions .btn {
    flex: 1;
}

/* =============================================================================
   MAP MARKERS & OVERLAYS
   ============================================================================= */

/* Custom Drone Marker Styles */
.drone-marker {
    background: transparent;
    border: none;
}

.drone-marker-icon {
    position: relative;
    width: 40px;
    height: 40px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

.drone-marker-icon.hostile {
    animation: marker-pulse-hostile 1.5s infinite;
}

@keyframes marker-pulse-hostile {
    0%, 100% {
        filter: drop-shadow(0 0 8px rgba(218, 54, 51, 0.8));
    }
    50% {
        filter: drop-shadow(0 0 16px rgba(218, 54, 51, 1));
    }
}

/* Sensor Marker Styles */
.sensor-marker {
    width: 32px;
    height: 32px;
    background: var(--bg-secondary);
    border: 2px solid var(--ua-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 12px rgba(0, 91, 187, 0.5);
}

.sensor-marker.online {
    border-color: var(--status-online);
    box-shadow: 0 0 12px rgba(63, 185, 80, 0.5);
}

.sensor-marker.degraded {
    border-color: var(--status-degraded);
    box-shadow: 0 0 12px rgba(210, 153, 34, 0.5);
}

.sensor-marker.offline {
    border-color: var(--status-offline);
    box-shadow: none;
    opacity: 0.6;
}

/* Range Rings */
.range-ring {
    stroke: var(--ua-yellow);
    stroke-width: 1;
    fill: none;
    opacity: 0.3;
    stroke-dasharray: 8 4;
}

/* Detection Trail */
.detection-trail {
    stroke: var(--threat-critical);
    stroke-width: 2;
    fill: none;
    opacity: 0.6;
    stroke-dasharray: 4 2;
}

/* Accuracy Circle */
.accuracy-circle {
    stroke: var(--ua-yellow);
    stroke-width: 1;
    fill: rgba(255, 213, 0, 0.1);
    stroke-dasharray: 4 4;
}

/* Popup Styling */
.leaflet-popup-content-wrapper {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-default) !important;
    border-radius: 4px !important;
    color: var(--text-primary) !important;
}

.leaflet-popup-tip {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-default) !important;
}

.leaflet-popup-content {
    font-family: var(--font-ui);
    font-size: 12px;
    margin: 8px 12px !important;
}

/* =============================================================================
   ANIMATIONS
   ============================================================================= */

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

@keyframes slideInLeft {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

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

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* =============================================================================
   RESPONSIVE (Tablet/Desktop)
   ============================================================================= */

@media (max-width: 1200px) {
    .sidebar {
        width: 240px;
        min-width: 240px;
    }
}

@media (max-width: 992px) {
    .command-bar {
        flex-wrap: wrap;
        height: auto;
        padding: var(--spacing-md);
    }

    .status-section {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
        border-top: 1px solid var(--border-muted);
    }

    .sidebar {
        width: 200px;
        min-width: 200px;
    }
}

/* =============================================================================
   REMOTEID / OPERATOR MARKERS
   ============================================================================= */

/* Operator position marker */
.operator-marker {
    background: none;
    border: none;
}

.operator-marker-icon {
    width: 28px;
    height: 28px;
    color: #58a6ff;
    filter: drop-shadow(0 0 4px rgba(88, 166, 255, 0.6));
}

.operator-marker-icon svg {
    width: 100%;
    height: 100%;
}

/* Operator popup */
.operator-popup .popup-header {
    background: var(--ua-blue-dark);
    border-color: #58a6ff;
}

/* Dark drone badge */
.dark-drone-badge {
    position: absolute;
    top: -8px;
    right: -12px;
    z-index: 10;
    animation: dark-drone-pulse 2s ease-in-out infinite;
}

.dark-drone-badge svg {
    width: 36px;
    height: 18px;
    filter: drop-shadow(0 0 4px rgba(218, 54, 51, 0.8));
}

@keyframes dark-drone-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Dark drone marker style */
.drone-marker-icon.dark-drone {
    position: relative;
}

/* Dark drone warning in popup */
.dark-drone-warning {
    background: rgba(218, 54, 51, 0.15);
    border: 1px solid rgba(218, 54, 51, 0.4);
    border-radius: 4px;
    margin-top: 8px;
    padding: 4px 8px;
}

.dark-warning {
    color: #da3633 !important;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* RemoteID present indicator */
.rid-present {
    color: #3fb950 !important;
    font-weight: 600;
}

/* RemoteID popup section */
.remote-id-section {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-muted);
}

/* Operator line (drone-to-operator dashed) */
.operator-line {
    stroke-dasharray: 6 4;
    opacity: 0.6;
}

/* =============================================================================
   QUICK ACTIONS (Header Buttons)
   ============================================================================= */

.quick-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-lg);
}

.action-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background: var(--bg-hover);
    color: var(--ua-blue);
    border-color: var(--ua-blue);
}

/* =============================================================================
   SETTINGS MODAL ENHANCEMENTS
   ============================================================================= */

.modal-content.modal-lg {
    width: 600px;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.modal-content.modal-lg .modal-body {
    flex: 1;
    overflow-y: auto;
}

/* Settings Tabs */
.settings-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-default);
    padding-bottom: var(--spacing-md);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px 4px 0 0;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    cursor: pointer;
    letter-spacing: 0.5px;
    transition: all var(--transition-fast);
}

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

.tab-btn.active {
    color: var(--ua-blue);
    border-color: var(--border-default);
    border-bottom-color: var(--bg-secondary);
    background: var(--bg-secondary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Settings Sections */
.settings-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-muted);
}

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

.settings-section h3 {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--ua-yellow);
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
}

/* Checkbox styling */
.form-group label input[type="checkbox"] {
    width: auto;
    margin-right: var(--spacing-sm);
    accent-color: var(--ua-blue);
}

.form-group label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: none;
    cursor: pointer;
}

/* Export Actions */
.export-actions {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

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

/* =============================================================================
   ENHANCED TRACK BADGES
   ============================================================================= */

/* Dark Drone Badge in Track List */
.track-item.dark-drone {
    border-left: 3px solid var(--threat-critical);
    background: rgba(218, 54, 51, 0.05);
}

.track-item .dark-badge {
    background: var(--threat-critical);
    color: white;
    font-family: var(--font-mono);
    font-size: 8px;
    font-weight: 700;
    padding: 2px 4px;
    border-radius: 2px;
    letter-spacing: 0.5px;
}

/* Acoustic Detection Badge */
.track-item.acoustic {
    border-left: 3px solid var(--ua-yellow);
}

.track-item .acoustic-badge {
    background: var(--ua-yellow);
    color: var(--bg-primary);
    font-family: var(--font-mono);
    font-size: 8px;
    font-weight: 700;
    padding: 2px 4px;
    border-radius: 2px;
    letter-spacing: 0.5px;
}

/* Lost Track Badge & Styling */
.track-item.track-lost {
    opacity: 0.5;
    border-left-color: #484f58 !important;
}

.track-item .lost-badge {
    background: #484f58;
    color: #8b949e;
    font-family: var(--font-mono);
    font-size: 8px;
    font-weight: 700;
    padding: 2px 4px;
    border-radius: 2px;
    letter-spacing: 0.5px;
}

.movement-arrow.lost { color: #484f58 !important; }
.movement-label.lost { color: #484f58; }

/* Movement label: LOST in popup */
.movement-lost { color: #da3633; font-weight: 700; }

/* Position Method Badge */
.position-method-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 2px;
    margin-left: var(--spacing-sm);
}

.position-method-badge.rssi {
    background: rgba(139, 148, 158, 0.2);
    color: var(--text-secondary);
}

.position-method-badge.tdoa {
    background: rgba(0, 91, 187, 0.2);
    color: var(--ua-blue-light);
}

.position-method-badge.hybrid {
    background: rgba(163, 113, 247, 0.2);
    color: var(--threat-emergency);
}

.position-method-badge.df {
    background: rgba(0, 168, 107, 0.2);
    color: var(--threat-clear);
}

.position-method-badge.df_rssi {
    background: rgba(0, 130, 85, 0.2);
    color: #4ec9a0;
}

/* Anti-Spoof Score Display */
.anti-spoof-section {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: 4px;
}

.anti-spoof-header {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-xs);
}

.anti-spoof-score {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
}

.anti-spoof-score.good {
    color: var(--threat-clear);
}

.anti-spoof-score.warning {
    color: var(--threat-suspicious);
}

.anti-spoof-score.bad {
    color: var(--threat-critical);
}

.anti-spoof-details {
    font-size: 10px;
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

/* RemoteID Section in Track Details */
.remote-id-detail {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: 4px;
    border-left: 3px solid var(--threat-clear);
}

.remote-id-detail.dark {
    border-left-color: var(--threat-critical);
    background: rgba(218, 54, 51, 0.05);
}

.remote-id-header {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

.remote-id-serial {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.remote-id-operator {
    font-size: 10px;
    color: var(--text-secondary);
}

/* Sensor Time Sync Status */
.sensor-item .sync-status {
    font-family: var(--font-mono);
    font-size: 8px;
    padding: 2px 4px;
    border-radius: 2px;
    margin-left: var(--spacing-xs);
}

.sensor-item .sync-status.gps {
    background: rgba(63, 185, 80, 0.2);
    color: var(--status-online);
}

.sensor-item .sync-status.ptp {
    background: rgba(0, 91, 187, 0.2);
    color: var(--ua-blue-light);
}

.sensor-item .sync-status.ntp {
    background: rgba(210, 153, 34, 0.2);
    color: var(--status-degraded);
}

.sensor-item .sync-status.unknown {
    background: rgba(110, 118, 129, 0.2);
    color: var(--text-tertiary);
}

/* =============================================================================
   SENSOR DETAIL MODAL (Sprint 19)
   ============================================================================= */

#sensorDetailModal .modal-content {
    width: 800px;
    max-width: 95vw;
}

.sensor-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.sensor-detail-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-default);
}

.sensor-icon-large {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sensor-icon-large svg {
    width: 40px;
    height: 40px;
}

.sensor-header-info h3 {
    margin: 0 0 4px 0;
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.sensor-type-badge,
.sensor-status-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 3px;
    margin-right: 4px;
}

.sensor-type-badge {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.sensor-status-badge {
    text-transform: uppercase;
}

.sensor-status-badge.online {
    background: rgba(63, 185, 80, 0.2);
    color: var(--status-online);
}

.sensor-status-badge.degraded {
    background: rgba(210, 153, 34, 0.2);
    color: var(--status-degraded);
}

.sensor-status-badge.offline {
    background: rgba(110, 118, 129, 0.2);
    color: var(--status-offline);
}

.sensor-status-badge.maintenance {
    background: rgba(0, 91, 187, 0.2);
    color: var(--ua-blue-light);
}

.sensor-status-badge.fault {
    background: rgba(218, 54, 51, 0.2);
    color: var(--status-fault);
}

.sensor-meta-info {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: 4px;
}

.meta-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px solid var(--border-default);
}

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

.meta-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-tertiary);
}

.meta-value {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
}

.sensor-health-section h4 {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    margin: 0 0 var(--spacing-md) 0;
    letter-spacing: 0.5px;
}

.health-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.health-item {
    background: var(--bg-tertiary);
    border-radius: 4px;
    padding: var(--spacing-sm);
    text-align: center;
}

.health-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--text-tertiary);
    margin-bottom: 2px;
}

.health-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.degradation-info {
    background: rgba(210, 153, 34, 0.1);
    border: 1px solid rgba(210, 153, 34, 0.3);
    border-radius: 4px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.degradation-info h5 {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--status-degraded);
    margin: 0 0 var(--spacing-sm) 0;
}

.degradation-info ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.degradation-info li {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.command-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.command-buttons .btn {
    flex: 1;
    min-width: 100px;
}

.command-buttons .btn .icon {
    margin-right: 4px;
}

.btn-sm {
    padding: 6px 10px;
    font-size: 10px;
}

.btn-warning {
    background: rgba(210, 153, 34, 0.2);
    border-color: var(--status-degraded);
    color: var(--status-degraded);
}

.btn-warning:hover {
    background: rgba(210, 153, 34, 0.3);
}

.btn-danger {
    background: rgba(218, 54, 51, 0.2);
    border-color: var(--status-fault);
    color: var(--status-fault);
}

.btn-danger:hover {
    background: rgba(218, 54, 51, 0.3);
}

.event-log {
    max-height: 150px;
    overflow-y: auto;
    background: var(--bg-tertiary);
    border-radius: 4px;
    padding: var(--spacing-sm);
}

.event-empty {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-tertiary);
    text-align: center;
    padding: var(--spacing-md);
}

.event-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: 4px 0;
    border-bottom: 1px solid var(--border-default);
}

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

.event-time {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.event-type {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-secondary);
}

.event-msg {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-secondary);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.event-cat {
    font-size: 10px;
    width: 14px;
    text-align: center;
    flex-shrink: 0;
}

.event-badge {
    font-family: var(--font-mono);
    font-size: 8px;
    font-weight: 700;
    padding: 1px 4px;
    border-radius: 2px;
    flex-shrink: 0;
    text-transform: uppercase;
}
.badge-info { background: rgba(0, 150, 255, 0.2); color: #4dabf7; }
.badge-warn { background: rgba(255, 165, 0, 0.2); color: #ffa94d; }
.badge-error { background: rgba(255, 50, 50, 0.2); color: #ff6b6b; }
.badge-debug { background: rgba(128, 128, 128, 0.2); color: #868e96; }

.event-item.event-warn { background: rgba(255, 165, 0, 0.05); }
.event-item.event-error { background: rgba(255, 50, 50, 0.08); }
.event-item.event-debug { opacity: 0.6; }

.event-expand-link {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent);
    text-decoration: none;
    margin-left: 8px;
}
.event-expand-link:hover { text-decoration: underline; }

.modal-footer .footer-spacer {
    flex: 1;
}

#sensorDetailModal .modal-footer {
    display: flex;
    gap: var(--spacing-md);
}

#sensorDetailModal textarea {
    resize: vertical;
    min-height: 50px;
}

/* =============================================================================
   PENDING SENSORS PANEL (Sprint 16 - Sensor Authentication)
   ============================================================================= */

.pending-sensors-panel {
    border: 1px solid var(--threat-warning);
}

.pending-sensors-panel .panel-header {
    background: rgba(210, 153, 34, 0.1);
}

.pending-sensor-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--threat-warning);
    border-left: 3px solid var(--threat-warning);
    border-radius: 4px;
}

.pending-sensor-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border-radius: 4px;
    color: var(--threat-warning);
    opacity: 0.7;
}

.pending-sensor-info {
    flex: 1;
    min-width: 0;
}

.pending-sensor-name {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.pending-sensor-type {
    font-size: 10px;
    color: var(--text-tertiary);
}

.pending-sensor-attempts {
    font-size: 10px;
    color: var(--threat-warning);
    margin-top: 2px;
}

.pending-sensor-seen {
    font-size: 9px;
    color: var(--text-muted);
    margin-top: 2px;
}

.pending-sensor-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.pending-sensor-actions .btn-sm {
    padding: 4px 8px;
    font-size: 9px;
    min-width: 60px;
}

/* Unpaired sensor styling in main list */
.sensor-item.unpaired {
    border-left: 3px solid var(--threat-warning);
    opacity: 0.8;
}

.pairing-badge {
    display: inline-block;
    padding: 1px 4px;
    margin-left: 4px;
    background: rgba(210, 153, 34, 0.2);
    color: var(--threat-warning);
    font-size: 8px;
    font-weight: 600;
    border-radius: 2px;
    vertical-align: middle;
}

/* Count badge warning variant */
.count-badge.warning {
    background: rgba(210, 153, 34, 0.15);
    color: var(--threat-warning);
}

/* =========================================================================
   MGRS Protected Zones (Sprint 22)
   ========================================================================= */

/* Zones table */
.mgrs-zones-table-wrap {
    max-height: 260px;
    overflow-y: auto;
    margin-bottom: 12px;
}

.zones-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.zones-table th,
.zones-table td {
    padding: 6px 8px;
    border: 1px solid var(--border-default);
    text-align: left;
}

.zones-table th {
    background: rgba(0, 91, 187, 0.15);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 10px;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 1;
}

.zones-table td.mgrs-grid {
    font-family: monospace;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.zones-table .zone-remove-btn {
    background: none;
    border: 1px solid var(--threat-critical);
    color: var(--threat-critical);
    padding: 2px 8px;
    font-size: 10px;
    cursor: pointer;
    border-radius: 2px;
}

.zones-table .zone-remove-btn:hover {
    background: var(--threat-critical);
    color: #fff;
}

/* Priority badges in table */
.zone-priority-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 2px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

.zone-priority-badge.priority-1 {
    background: rgba(0, 255, 0, 0.15);
    color: #00cc00;
}

.zone-priority-badge.priority-2 {
    background: rgba(255, 255, 0, 0.15);
    color: #cccc00;
}

.zone-priority-badge.priority-3 {
    background: rgba(255, 102, 0, 0.15);
    color: #ff6600;
}

.zone-priority-badge.priority-4 {
    background: rgba(255, 0, 0, 0.2);
    color: var(--threat-critical);
}

/* Zone add controls */
.zone-add-controls {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.zone-add-controls .form-group {
    margin-bottom: 0;
}

#mgrsInput {
    font-family: 'Share Tech Mono', 'Courier New', monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Map zone rectangles (Leaflet overrides) */
.leaflet-mgrs-zone-tooltip {
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    font-family: monospace;
    font-size: 11px;
    padding: 2px 6px;
}

/* Zone pulse animation for active threats */
@keyframes zone-pulse {
    0%, 100% { fill-opacity: 0.15; stroke-opacity: 0.8; }
    50%      { fill-opacity: 0.4;  stroke-opacity: 1; }
}

/* Approach warning banner */
.approach-warning-banner {
    background: linear-gradient(90deg, rgba(255, 102, 0, 0.9), rgba(255, 153, 0, 0.9));
    color: #fff;
    padding: 6px 16px;
    font-weight: 600;
    font-size: 12px;
    text-align: center;
    animation: zone-pulse 1s ease-in-out infinite;
}

/* MGRS click mode indicator */
.mgrs-click-mode-active #map {
    cursor: crosshair !important;
}

.mgrs-click-indicator {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 91, 187, 0.9);
    color: #fff;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    z-index: 1000;
    pointer-events: none;
}

/* MGRS grid label styling */
.mgrs-grid-label {
    color: rgba(0, 200, 83, 0.35);
    font-size: 9px;
    font-family: monospace;
    font-weight: 600;
    white-space: nowrap;
}

/* MGRS coordinate in bottom-left display */
.coords-display .mgrs {
    font-family: 'Share Tech Mono', 'Courier New', monospace;
    letter-spacing: 0.5px;
    color: rgba(0, 200, 83, 0.9);
}

/* =============================================================================
   FLEET HEALTH DASHBOARD (Sprint 24 — Task 87)
   ============================================================================= */

.dashboard-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 1px solid var(--border-default);
}

.dashboard-header h1 {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
    margin: 0;
}

.fleet-badges {
    display: flex;
    gap: var(--spacing-sm);
    margin-left: auto;
}

.fleet-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px 10px;
    border-radius: 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
}

.fleet-badge.online  { background: rgba(63, 185, 80, 0.15); color: var(--status-online); }
.fleet-badge.degraded { background: rgba(210, 153, 34, 0.15); color: var(--status-degraded); }
.fleet-badge.fault   { background: rgba(218, 54, 51, 0.15); color: var(--status-fault); }
.fleet-badge.offline { background: rgba(110, 118, 129, 0.15); color: var(--status-offline); }

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    overflow-y: auto;
}

.health-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-muted);
    border-radius: 6px;
    padding: var(--spacing-lg);
    transition: border-color var(--transition-fast);
}

.health-card:hover {
    border-color: var(--ua-blue);
}

.health-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.health-card-header .sensor-name {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}

.health-card-header .type-badge {
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    background: var(--bg-elevated);
    border-radius: 3px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

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

.health-metric-row .label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    width: 70px;
    flex-shrink: 0;
}

.health-metric-row .value {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    width: 42px;
    text-align: right;
    flex-shrink: 0;
}

.health-bar {
    flex: 1;
    height: 6px;
    background: var(--bg-elevated);
    border-radius: 3px;
    overflow: hidden;
}

.health-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
    background: var(--status-online);
}

.health-bar-fill.warn { background: var(--status-degraded); }
.health-bar-fill.crit { background: var(--status-fault); }

.health-card .degrade-text {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--status-degraded);
    margin-top: var(--spacing-sm);
    line-height: 1.4;
}

.health-card .heartbeat-age {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

.history-section {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-default);
}

.history-section h2 {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin: 0 0 var(--spacing-md) 0;
}

.history-chart {
    width: 100%;
    height: 120px;
}

.history-chart text {
    font-family: var(--font-mono);
    font-size: 9px;
    fill: var(--text-tertiary);
}

/* =============================================================================
   PANEL POPOUT & RESIZE CONTROLS
   ============================================================================= */

/* Header actions container — sits right of the title, before the chevron */
.panel-header-actions {
    margin-left: auto;
    display: flex;
    gap: 4px;
    align-items: center;
}

.panel-header-actions + svg {
    margin-left: 4px !important; /* chevron after actions group */
}

.panel-popout-btn {
    width: 20px;
    height: 20px;
    padding: 2px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.panel-popout-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-default);
    color: var(--text-secondary);
}

.panel-popout-btn svg {
    width: 12px;
    height: 12px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

/* Placeholder shown when panel content is popped out */
.panel-popped-out {
    padding: 16px 12px;
    text-align: center;
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.panel-popped-out:hover {
    color: var(--text-secondary);
}

/* Sidebar resize handle */
.sidebar-resize-handle {
    width: 4px;
    min-width: 4px;
    cursor: col-resize;
    background: transparent;
    position: relative;
    z-index: 10;
    flex-shrink: 0;
    transition: background var(--transition-fast);
}

.sidebar-resize-handle:hover,
.sidebar-resize-handle.active {
    background: var(--ua-blue);
    opacity: 0.5;
}

/* Popout window styles (injected into child window) */
.popout-body {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 16px;
    font-family: var(--font-ui);
    font-size: 14px;
    line-height: 1.4;
    min-height: 100vh;
}

/* Demo video button */
.video-demo-btn {
    background: var(--ua-blue);
    color: white;
    border: none;
    padding: 3px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 11px;
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
    transition: background var(--transition-fast);
}

.video-demo-btn:hover {
    background: var(--ua-blue-light);
}

.video-demo-btn:disabled {
    opacity: 0.4;
    cursor: default;
}

/* Panel lock button */
.panel-lock-btn {
    width: 20px;
    height: 20px;
    padding: 2px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.panel-lock-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-default);
    color: var(--text-secondary);
}

.panel-lock-btn svg {
    width: 12px;
    height: 12px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

.panel-lock-btn.locked {
    color: var(--ua-yellow);
    border-color: var(--ua-yellow-dim);
}

.panel-lock-btn.locked:hover {
    background: rgba(255, 213, 0, 0.1);
}

/* ── Panel drag-and-drop ── */

.panel-drag-ghost {
    position: fixed;
    pointer-events: none;
    opacity: 0.7;
    z-index: 10000;
    border: 1px solid var(--ua-blue);
    border-radius: 4px;
    background: var(--bg-primary);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    max-width: 300px;
    overflow: hidden;
}

.panel.dragging {
    opacity: 0.3;
    border: 1px dashed var(--border-default);
}

.sidebar.drop-target {
    outline: 2px dashed var(--ua-blue);
    outline-offset: -2px;
    background: rgba(68, 170, 255, 0.05);
}

.panel-drop-indicator {
    height: 3px;
    background: var(--ua-blue);
    border-radius: 2px;
    margin: 2px 8px;
}