/* Global styling resetting and theme definitions */
:root {
    --bg-dark: #090d16;
    --panel-bg: rgba(15, 23, 42, 0.65);
    --panel-border: rgba(255, 255, 255, 0.08);
    --accent-color: #00e5ff;
    --accent-glow: rgba(0, 229, 255, 0.25);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --hover-bg: rgba(255, 255, 255, 0.05);
    --active-bg: rgba(0, 229, 255, 0.1);
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
    --border-radius: 12px;
}

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

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-dark);
    font-family: var(--font-sans);
    color: var(--text-primary);
}

/* Cesium container fullscreen */
#cesiumContainer {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

/* Overriding Cesium logo/credits position if needed */
.cesium-viewer-bottom {
    left: 420px !important; /* Move right of the sidebar */
    transition: left 0.3s ease;
}

/* Loader Screen */
.loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-container.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--panel-border);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.loader-text {
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Sidebar Styling - Glassmorphism */
.sidebar {
    position: absolute;
    top: 20px;
    left: 20px;
    bottom: 20px;
    width: 380px;
    z-index: 10;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-premium);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--panel-border);
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    font-size: 1.8rem;
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--accent-glow);
    animation: pulse 2s infinite ease-in-out;
}

.logo-text h1 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #ffffff 0%, #b4f8ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.sidebar-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Custom Scrollbar for Sidebar */
.sidebar-content::-webkit-scrollbar {
    width: 6px;
}
.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
.sidebar-content::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 229, 255, 0.3);
}

/* Control Panel Section */
.control-panel {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    padding: 15px;
}

.control-panel h2 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* Flight Level Slider */
.fl-slider-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.fl-label-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.fl-label-row strong {
    color: var(--accent-color);
}

/* Multi-range Slider */
.range-slider {
    position: relative;
    width: 100%;
    height: 30px;
    margin: 5px 0;
    display: flex;
    align-items: center;
}

.slider-track {
    position: absolute;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    z-index: 1;
}

.range-slider input[type="range"] {
    position: absolute;
    width: 100%;
    background: none;
    pointer-events: none;
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
    height: 0;
    outline: none;
    z-index: 2;
}

.range-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-glow);
    cursor: pointer;
    pointer-events: auto; /* Enable clicks only on the thumb */
    transition: transform 0.1s;
    position: relative;
    z-index: 3;
}

.range-slider input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.range-slider input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-glow);
    cursor: pointer;
    border: none;
    pointer-events: auto;
    transition: transform 0.1s;
    position: relative;
    z-index: 3;
}

.range-slider input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.2);
}

.altitude-meters-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

/* Custom Select Dropdown */
.select-wrapper {
    position: relative;
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    overflow: hidden;
}

.custom-select {
    width: 100%;
    background: transparent;
    border: none;
    padding: 10px 12px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
}

.select-wrapper::after {
    content: '▼';
    font-size: 0.6rem;
    color: var(--text-muted);
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

/* Search Box */
.search-box {
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 10px;
}

.search-box input {
    flex-grow: 1;
    background: transparent;
    border: none;
    padding: 10px 12px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0 12px;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

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

/* Filters */
.type-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.filter-badge {
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.filter-badge.active {
    background: var(--active-bg);
    border-color: var(--accent-color);
    color: var(--accent-color);
    box-shadow: 0 0 8px rgba(0, 229, 255, 0.15);
}

/* List Panel */
.list-panel {
    display: flex;
    flex-direction: column;
    max-height: 400px;
}

.list-container {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-right: 5px;
}

.list-container::-webkit-scrollbar {
    width: 4px;
}
.list-container::-webkit-scrollbar-track {
    background: transparent;
}
.list-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
}

/* Recursive Tree Styling */
.tree-node {
    display: flex;
    flex-direction: column;
    margin-bottom: 2px;
}

.tree-row {
    display: flex;
    align-items: center;
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.15s ease, color 0.15s ease;
    user-select: none;
    gap: 8px;
}

.tree-row:hover {
    background: var(--hover-bg);
}

.tree-row.active {
    background: var(--active-bg);
    color: var(--accent-color);
}

.tree-toggle {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--text-muted);
    cursor: pointer;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
    transform: rotate(0deg);
}

.tree-node.expanded > .tree-row > .tree-toggle {
    transform: rotate(90deg);
}

.tree-label {
    flex-grow: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.limits-pill {
    background: rgba(0, 229, 255, 0.1);
    color: var(--accent-color);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 500;
    margin-left: 6px;
}

.tree-children {
    padding-left: 14px;
    border-left: 1px dashed rgba(255, 255, 255, 0.08);
    margin-left: 15px;
    display: none;
    flex-direction: column;
    gap: 2px;
}

.tree-node.expanded > .tree-children {
    display: flex;
}

.tree-bullet {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--panel-border);
    background: rgba(0, 0, 0, 0.2);
    border-bottom-left-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
}

.stats-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.stats-row strong {
    color: var(--text-primary);
}

/* Details Floating Card */
.details-card {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 320px;
    z-index: 10;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-premium);
    padding: 20px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.details-card.hidden {
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
}

.details-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 10px;
    margin-bottom: 12px;
}

.details-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.details-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.details-row {
    display: flex;
    justify-content: space-between;
}

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

.details-row strong {
    color: var(--text-primary);
}

.details-airblocks-list {
    margin-top: 5px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    max-height: 150px;
    overflow-y: auto;
    padding-right: 5px;
}

.details-airblock-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    padding: 6px;
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
}

/* Animations */
@keyframes pulse {
    0% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.05); opacity: 1; text-shadow: 0 0 15px var(--accent-color); }
    100% { transform: scale(1); opacity: 0.9; }
}

/* Map Tooltip Style */
.map-tooltip {
    position: absolute;
    background: rgba(15, 23, 42, 0.92); /* Sleek slate background */
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    padding: 10px 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.8rem;
    pointer-events: none;
    z-index: 9999;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    max-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: opacity 0.1s ease;
}

.map-tooltip.hidden {
    display: none;
}

.map-tooltip h4 {
    margin: 0;
    font-size: 0.85rem;
    color: var(--accent-color);
    font-weight: 600;
}

.map-tooltip .tooltip-row {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 4px;
}

.map-tooltip .tooltip-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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