/**
 * RTLS Dashboard - Modern Dark Theme CSS
 */

/* ========== CSS Variables ========== */
:root {
    --bg-primary: #1a1d23;
    --bg-secondary: #252830;
    --bg-tertiary: #2d3139;
    --bg-card: #2a2d35;
    
    --text-primary: #e4e6eb;
    --text-secondary: #b0b3b8;
    --text-muted: #8a8d93;
    
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: #60a5fa;
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    --border: #3a3d45;
    --shadow: rgba(0, 0, 0, 0.3);
    
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    
    --transition: all 0.2s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ========== Navigation ========== */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px var(--shadow);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    flex: 1;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links a:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-links a.active {
    background: var(--accent-primary);
    color: white;
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-online {
    background: var(--success);
}

.status-offline {
    background: var(--danger);
    animation: none;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ========== Container & Layout ========== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.page-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
}

/* ========== Cards ========== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: 0 4px 12px var(--shadow);
}

.card h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.card h3 {
    font-size: 1.1rem;
    margin: 1.5rem 0 1rem;
    color: var(--text-primary);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

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

/* ========== Tables ========== */
.table-wrapper {
    width: 100%;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem 0.85rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
}

.data-table thead th {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
}

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

/* ========== Forms ========== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-hint {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* ========== Buttons ========== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--border);
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

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

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

/* ========== File Upload ========== */
.file-upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.file-upload-area i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.file-upload-area p {
    color: var(--text-secondary);
}

.image-preview {
    margin-top: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    background: var(--bg-tertiary);
}

.image-preview img {
    max-width: 100%;
    border-radius: var(--radius);
}

/* ========== Map Canvas ========== */
.map-canvas {
    position: relative;
    min-height: 400px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-image-container img {
    display: block;
    max-width: 100%;
    height: auto;
}

.map-image-container {
    position: relative;
    display: inline-block;
}

.markers-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.marker {
    position: absolute;
    width: 32px;
    height: 32px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    pointer-events: all;
    transition: var(--transition);
    font-size: 1rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.marker.dragging {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.05);
}

.marker:hover {
    transform: translate(-50%, -50%) scale(1.2);
}

.marker-beacon {
    background: var(--accent-primary);
    color: white;
}

.marker-gateway {
    background: var(--success);
    color: white;
}

.marker-live {
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.25), 0 2px 8px var(--shadow);
}

.marker-trilateration {
    outline: 2px dashed rgba(96, 165, 250, 0.9);
    outline-offset: 2px;
}

.marker-beacon.pir-active::after {
    content: '';
    position: absolute;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.35) 0%, rgba(239, 68, 68, 0.05) 70%, transparent 100%);
    animation: pirPulse 2s ease-out infinite;
    z-index: -1;
}

.marker-label {
    position: absolute;
    top: 36px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.2rem 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    white-space: nowrap;
    border: 1px solid var(--border);
}

.marker-metrics {
    position: absolute;
    top: 64px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.35rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 120px;
}

.marker-metrics .metric {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
}

.door-metric i,
.door-badge i {
    margin-right: 0.35rem;
}

.door-state-0 {
    color: var(--text-secondary);
}

.door-state-1 {
    color: var(--warning);
    animation: doorSwingOpen 0.8s ease-in-out infinite;
}

.door-state-2 {
    color: var(--success);
    animation: doorGlow 1.5s ease-in-out infinite;
}

.door-state-3 {
    color: var(--warning);
    animation: doorSwingClose 0.8s ease-in-out infinite;
}

.pir-metric,
.pir-active-state {
    color: var(--danger);
}

.pir-idle-state {
    color: var(--text-secondary);
}

.pir-radar {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.9);
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.8);
    margin-left: 0.35rem;
    animation: radarSweep 1.4s linear infinite;
}

.pir-idle-state .pir-radar {
    display: none;
}

.map-metrics-hidden .marker-metrics {
    display: none;
}

/* ========== Dashboard Layout ========== */
.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 1.5rem;
}

.map-legend {
    display: flex;
    gap: 1rem;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.map-header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.legend-beacon {
    background: var(--accent-primary);
}

.legend-gateway {
    background: var(--success);
}

.legend-estimated {
    background: var(--accent-light);
    border: 1px dashed rgba(96, 165, 250, 0.9);
}

.compact-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 600px;
    overflow-y: auto;
}

.compact-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.compact-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.compact-title {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.compact-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.compact-metrics i {
    margin-right: 0.35rem;
}

.gateway-rssi-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: 0.35rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.gateway-rssi-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

@keyframes doorSwingOpen {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(-12deg); }
}

@keyframes doorSwingClose {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(12deg); }
}

@keyframes doorGlow {
    0%, 100% { text-shadow: none; }
    50% { text-shadow: 0 0 6px rgba(16, 185, 129, 0.8); }
}

@keyframes radarSweep {
    0% { transform: scale(0.8); opacity: 0.6; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(1.6); opacity: 0; }
}

@keyframes pirPulse {
    0% { transform: scale(0.8); opacity: 0.6; }
    70% { transform: scale(1.3); opacity: 0.2; }
    100% { transform: scale(1.5); opacity: 0; }
}

/* ========== Slider Controls ========== */
.slider-group {
    margin-bottom: 1.5rem;
}

.slider-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

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

input[type="range"] {
    width: 100%;
    accent-color: var(--accent-primary);
}

.badge-sm {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
}

@media (max-width: 1100px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== Beacon Dashboard ========== */
.beacon-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.beacon-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
}

.beacon-card:hover {
    box-shadow: 0 8px 24px var(--shadow);
}

.beacon-card.beacon-moving {
    animation: cardPulse 1s ease-in-out;
}

@keyframes cardPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.beacon-header {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.beacon-header h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.beacon-header .last-update {
    font-size: 0.875rem;
    color: var(--text-muted);
    display: block;
    margin-top: 0.5rem;
}

.sensor-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.sensor-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sensor-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.sensor-value {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

/* ========== Badges ========== */
.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.badge-info {
    background: rgba(6, 182, 212, 0.2);
    color: var(--info);
}

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

/* ========== RSSI Indicators ========== */
.rssi-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.rssi-gateway {
    font-size: 0.75rem;
    color: var(--text-muted);
    flex: 1;
}

/* ========== Lists ========== */
.items-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

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

.item-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.item-actions {
    display: flex;
    gap: 0.5rem;
}

.maps-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 600px;
    overflow-y: auto;
}

.map-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    align-items: center;
}

.map-item img {
    width: 120px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius);
}

.map-info {
    flex: 1;
}

.map-info h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.map-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0.25rem 0;
}

.map-actions {
    display: flex;
    gap: 0.5rem;
}

/* ========== Modal ========== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px var(--shadow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

/* ========== Toast Notifications ========== */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: 0 8px 24px var(--shadow);
    z-index: 2000;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    max-width: 400px;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast-success {
    background: var(--success);
    color: white;
}

.toast-error {
    background: var(--danger);
    color: white;
}

.toast-warning {
    background: var(--warning);
    color: white;
}

.toast-info {
    background: var(--info);
    color: white;
}

/* ========== Settings Page ========== */
.connection-info {
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.connection-status-large {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.connection-status-large .status-indicator {
    width: 16px;
    height: 16px;
}

.topics-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.topic-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
}

.topic-item code {
    flex: 1;
    color: var(--accent-light);
    font-family: 'Courier New', monospace;
}

.recent-messages {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 400px;
    overflow-y: auto;
}

.message-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.message-header .topic {
    color: var(--accent-light);
    font-size: 0.875rem;
}

.message-header .timestamp {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.message-payload {
    background: var(--bg-primary);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    overflow-x: auto;
    color: var(--text-secondary);
}

/* ========== Map Selector ========== */
.map-selector-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.map-selector-container label {
    font-weight: 500;
    white-space: nowrap;
}

/* ========== Utilities ========== */
.text-muted {
    color: var(--text-muted);
}

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

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-links {
        flex-direction: column;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .beacon-cards-grid {
        grid-template-columns: 1fr;
    }
    
    .sensor-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-sm);
}

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