:root {
    --bg-main: #f8fafc;
    --sidebar-bg: rgba(255, 255, 255, 0.85);
    --card-bg: rgba(255, 255, 255, 0.7);
    --accent-blue: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.3);
    --selection-color: #f59e0b;
    --selection-glow: rgba(245, 158, 11, 0.4);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: rgba(0, 0, 0, 0.08);
    --glass-blur: 16px;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] {
    --bg-main: #0f172a;
    --sidebar-bg: rgba(15, 23, 42, 0.85);
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.1);
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    overflow: hidden;
    transition: background-color 0.3s, color 0.3s;
}

#map {
    height: 100vh;
    width: 100vw;
    background: var(--bg-main);
}

/* Left Sidebar Styling */
#left-sidebar {
    position: fixed;
    top: 20px;
    left: -400px;
    width: 350px;
    height: calc(100vh - 40px);
    background: var(--sidebar-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: 10px 0 40px rgba(0, 0, 0, 0.1);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1100;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#left-sidebar.active {
    left: 20px;
}

#left-sidebar-toggle {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 48px;
    height: 48px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: 14px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1001;
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.sidebar-search {
    padding: 0 20px 15px 20px;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-wrapper i {
    position: absolute;
    left: 12px;
    width: 14px;
    height: 14px;
    color: var(--text-secondary);
}

.search-input-wrapper input {
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 8px 12px 8px 36px;
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: all 0.2s;
}

.search-input-wrapper input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

#left-sidebar-toggle:hover {
    transform: scale(1.05);
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

#left-sidebar.active ~ #left-sidebar-toggle {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.8);
}

.sidebar-tabs {
    display: flex;
    padding: 0 20px 15px 20px;
    gap: 10px;
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 15px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab-btn.active {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.25);
}

.tab-btn .badge {
    background: rgba(255, 255, 255, 0.25);
    color: white;
    padding: 2px 6px;
    min-width: 20px;
    text-align: center;
}

.tab-btn:not(.active) .badge {
    background: var(--border-color);
    color: var(--text-secondary);
}

.tab-content {
    display: none;
    height: 100%;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

.left-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 0 15px 20px 15px;
}

.item-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.badge {
    background: var(--border-color);
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-primary);
}

.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.list-item:hover {
    background: white;
    border-color: var(--accent-blue);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

[data-theme="dark"] .list-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

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

.item-callsign {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.item-sub {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 500;
}

.item-meta {
    text-align: right;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--accent-blue);
    font-weight: 600;
}

/* Sidebar Styling with Glassmorphism */
#sidebar {
    position: fixed;
    top: 20px;
    right: -420px;
    width: 380px;
    height: auto;
    max-height: calc(100vh - 40px);
    background: var(--sidebar-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    overflow-y: auto;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    padding: 0;
    display: flex;
    flex-direction: column;
}

#sidebar.active {
    right: 20px;
}

.sidebar-content {
    padding-bottom: 30px;
}

/* Header Section */
.sidebar-header {
    padding: 30px 25px;
    background: linear-gradient(to bottom, rgba(59, 130, 246, 0.08), transparent);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-main {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-icon {
    width: 32px;
    height: 32px;
    color: var(--accent-blue);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

#side-callsign {
    margin: 0;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.close-btn {
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--border-color);
    transition: all 0.2s;
    color: var(--text-secondary);
}

.close-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    transform: rotate(90deg);
}

/* Info Cards */
.info-card {
    background: var(--card-bg);
    border-radius: 20px;
    margin: 15px 20px;
    padding: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: slideIn 0.5s ease-out forwards;
    opacity: 0;
}

@keyframes slideIn {
    from { transform: translateX(30px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.info-card:nth-child(1) { animation-delay: 0.1s; }
.info-card:nth-child(2) { animation-delay: 0.2s; }
.info-card:nth-child(3) { animation-delay: 0.3s; }
.info-card:nth-child(4) { animation-delay: 0.4s; }

.info-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    border-color: rgba(59, 130, 246, 0.3);
}

.card-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title i {
    width: 16px;
    height: 16px;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-label {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 500;
}

.info-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Image Container */
.img-container {
    margin: 20px;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
}

#side-img {
    width: 100%;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.img-container:hover #side-img {
    transform: scale(1.05);
}

.copyright-label {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.95);
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 600;
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.3px;
}

/* Route Section */
#pilot-route {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
    background: var(--border-color);
    padding: 12px;
    border-radius: 12px;
    border-left: 3px solid var(--accent-blue);
}

/* Plane Icons on Map - Modern Blue Style */
.plane-icon-container {
    transition: all 0.3s;
    overflow: visible !important;
}

.plane-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.plane-icon {
    width: 38px; /* Further enlarged icon */
    height: 38px;
    z-index: 2;
    overflow: visible;
    display: block;
    transform-origin: center center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.plane-body {
    fill: var(--accent-blue); /* Restored Blue Fill */
    stroke: rgba(255, 255, 255, 0.9);
    stroke-width: 1.2px;
    filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.3));
}

.plane-tag-capsule {
    position: absolute;
    left: 42px; /* Adjusted for larger icon */
    top: 50%;
    transform: translateY(-50%);
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    padding: 2px 8px; /* Smaller padding */
    border-radius: 12px; /* Slightly tighter radius */
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    pointer-events: none;
    z-index: 3;
    transition: all 0.3s ease;
}

.plane-tag-callsign {
    color: var(--text-primary);
    font-size: 10.5px; /* Smaller font size */
    font-weight: 700;
    letter-spacing: 0.3px;
}

/* Selected State */
.plane-selected-modern .plane-body {
    fill: var(--selection-color);
    stroke: #ffffff;
    stroke-width: 2px;
    filter: drop-shadow(0 0 10px var(--selection-glow));
}

.plane-selected-modern .plane-tag-capsule {
    border-color: var(--selection-color);
    background: rgba(255, 59, 48, 0.1);
    box-shadow: 0 0 20px rgba(255, 59, 48, 0.2);
}

.plane-selected-modern .plane-tag-callsign {
    color: var(--selection-color);
}

/* Hover effect */
.plane-icon-container:hover .plane-icon {
    transform: scale(1.15);
}

.plane-icon-container:hover .plane-tag-capsule {
    background: var(--sidebar-bg);
    border-color: var(--accent-blue);
    transform: translateY(-50%) translateX(5px);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Leaflet Overrides */
.leaflet-container {
    background: var(--bg-main) !important;
}

.leaflet-control-layers {
    background: var(--sidebar-bg) !important;
    backdrop-filter: blur(var(--glass-blur)) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 16px !important;
    padding: 0 !important;
    color: var(--text-primary) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
    margin-top: 20px !important;
    margin-right: 20px !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    overflow: hidden !important;
}

.leaflet-control-layers:not(.leaflet-control-layers-expanded):hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.2) !important;
    border-color: var(--accent-blue) !important;
}

.leaflet-control-layers-toggle {
    width: 44px !important;
    height: 44px !important;
    background-size: 22px 22px !important;
    transition: all 0.3s ease !important;
}

.leaflet-control-layers-expanded {
    padding: 15px !important;
    min-width: 160px !important;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.leaflet-control-layers-overlays label {
    font-size: 11px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.2s;
    margin-bottom: 2px;
}

.leaflet-control-layers-base label {
    font-size: 11px;
    font-weight: 600;
    padding: 4px 8px;
}

.leaflet-control-layers-overlays label:hover {
    background: var(--border-color);
}

.leaflet-bar a {
    background: var(--sidebar-bg) !important;
    backdrop-filter: blur(var(--glass-blur)) !important;
    color: var(--text-primary) !important;
    border-bottom: 1px solid var(--border-color) !important;
    width: 30px !important;
    height: 30px !important;
    line-height: 30px !important;
    font-size: 16px !important;
}

/* ATC Radar Tag Styling */
.atc-icon-container {
    pointer-events: none;
}

.atc-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    pointer-events: auto;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.atc-dot {
    width: 10px;
    height: 10px;
    background: var(--accent-blue);
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 0 10px var(--accent-glow);
    flex-shrink: 0;
}

.atc-label {
    background: var(--sidebar-bg);
    backdrop-filter: blur(var(--glass-blur));
    color: var(--text-primary);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    letter-spacing: 0.5px;
    font-family: 'JetBrains Mono', monospace;
}

.atc-tag:hover .atc-dot {
    transform: scale(1.3);
    background: white;
}

.atc-tag:hover .atc-label {
    transform: translateY(-2px);
    border-color: var(--accent-blue);
    box-shadow: 0 6px 15px rgba(59, 130, 246, 0.2);
}

.atc-tag-selected .atc-dot {
    background: var(--selection-color);
    box-shadow: 0 0 15px var(--selection-glow);
    transform: scale(1.2);
}

.atc-tag-selected .atc-label {
    background: var(--selection-color);
    color: white;
    border-color: white;
    box-shadow: 0 0 20px var(--selection-glow);
    transform: translateY(-2px);
}