/* Body Styles */
body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f0f4f8, #d9e2ec);
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
}

/* Page Title */
.page-title {
    width: 100%;
    text-align: center;
    font-size: 32px;
    font-weight: bold;
    color: #2c3e50;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

/* Main Content Container */
.main-content {
    display: flex;
    justify-content: center; /* Center the content horizontally */
    align-items: flex-start; /* Align items to the top */
    margin-top: 80px; /* Space for the fixed header */
    width: 100%;
    height: calc(100vh - 80px);
    box-sizing: border-box;
    overflow: hidden;
}

/* Filter Panel */
.filter-panel {
    width: 250px;
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    position: sticky;
    top: 100px;
    height: fit-content;
}

.filter-panel:hover {
    background: rgba(255, 255, 255, 1);
}

.filter-panel h2 {
    margin: 0 0 10px 0;
    font-size: 20px;
    color: #2c3e50;
}

.filter-panel label {
    font-size: 14px;
    color: #34495e;
}

.filter-panel input, 
.filter-panel select {
    padding: 8px;
    font-size: 14px;
    border: 1px solid #bdc3c7;
    border-radius: 4px;
    transition: border-color 0.3s ease;
}

.filter-panel input:focus, 
.filter-panel select:focus {
    border-color: #3498db;
    outline: none;
}

.filter-panel button {
    padding: 10px;
    font-size: 14px;
    border: none;
    background: #2ecc71;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease;
}

.filter-panel button:hover {
    background: #27ae60;
    transform: translateY(-2px);
}

#map-container {
    flex: 1;
    position: relative;
    margin: 20px 20px 20px 0;
    max-width: 1200px;
    width: 100%;
    height: 500px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    overflow: hidden;
    background: #ffffff;
}

#map-container svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* Zoom Controls */
.zoom-controls {
    position: absolute;
    top: 20px;
    left: 20px;  
    background: rgba(255, 255, 255, 0.95);
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: background 0.3s ease;
}

.zoom-controls:hover {
    background: rgba(255, 255, 255, 1);
}

.zoom-controls button {
    width: 40px;
    height: 40px;
    border: none;
    background: #2ecc71;
    color: white;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease, transform 0.2s ease;
}

.zoom-controls button:hover {
    background: #51ff7a;
    transform: scale(1.05);
}

.zoom-controls #reset {
    width: 40px;
    font-size: 16px;
}

/* Ocean Background */
.ocean {
    fill: #00a0e5;
    opacity: 0.8;
}

.histograms {
    width: 400px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.histogram-container {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    padding: 14px;
    max-width: 600px;
    width: 90%;
    display: flex;
    flex-direction: column;
    color: #00a0e5;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    margin-right: 10px;
}

/* Histogram Titles */
.histogram-title {
    font-size: 20px;
    font-weight: bold;
    color: #2c3e50;
    margin: 0;
    text-align: center;
}

/* Histogram SVG */
.histogram-svg {
    width: 100%;
    height: 200px;
    background: #fff;
    border: 1px solid #bdc3c7;
    border-radius: 4px;
    padding: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.histogram-bar {
    background-color: #00a0e5;
    transition: background-color 0.3s ease;
}

.histogram-bar:hover {
    background-color: #007a8c; 
}


/* States */
.states path {
    fill: white;
    stroke: #fff;
    stroke-width: 0.5px;
}

/* State Borders */
.state-borders {
    fill: none;
    stroke: black;
    stroke-width: 1px;
}

/* Airports */
.airports circle {
    stroke: white; 
    stroke-width: 0.5px;
    transition: r 0.3s, fill 0.3s, stroke-width 0.3s;
    pointer-events: all; 
}

.airports circle:hover {
    stroke-width: 1.5px;
    cursor: pointer;
    opacity: 1;
    fill: #FFD700; /* Highlight color on hover */
}

/* Clusters */
.clusters circle.cluster {
    fill: rgba(0, 128, 255, 0.6);
    stroke: #fff;
    stroke-width: 1px;
    cursor: pointer;
    transition: r 0.3s, fill 0.3s, stroke-width 0.3s;
}

.clusters circle.cluster:hover {
    fill: rgba(0, 128, 255, 0.8);
    stroke-width: 2px;
}

/* Aggregated Markers */
.aggregated-marker {
    fill: #ff4444;
    stroke: white;
    stroke-width: 1px;
}

/* Connections */
.connections path.connection {
    stroke: orange;
    stroke-width: 2px;
    opacity: 0.8;
    transition: stroke-width 0.3s, opacity 0.3s;
}

.connections path.connection:hover {
    stroke-width: 3px;
    opacity: 1;
}

/* Tooltip */
.tooltip {
    position: absolute;
    text-align: left;
    width: auto;
    padding: 10px;
    font: 14px 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #bdc3c7;
    border-radius: 6px;
    pointer-events: none;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    transition: opacity 0.3s ease;
} 

/* Legend */
.legend {
    position: absolute;
    top: 20px;
    left: 20px; /* Align to the left */
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
}

.legend .legend-title {
    font-weight: bold;
    fill: #2c3e50;
    text-align: left; /* Ensure text is left-aligned */
}

.legend rect {
    stroke: #2c3e50;
    stroke-width: 1px;
}

/* Buttons */
button {
    outline: none;
}

button:focus {
    outline: none;
}

/* Responsive Adjustments */
@media (max-width: 1200px) {
    .main-content {
        flex-direction: column;
        align-items: center;
        height: auto;
    }

    .filter-panel {
        width: 90%;
        position: static;
        margin: 10px 0;
    }

    #map-container {
        width: 90%;
        height: 500px;
    }
}

@media (max-width: 800px) {
    #map-container {
        height: 450px;
    }
}

@media (max-width: 600px) {
    .zoom-controls {
        flex-direction: row;
        gap: 4px;
        top: 10px;
        left: 10px;
    }

    .zoom-controls button {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    .filter-panel {
        padding: 10px;
        gap: 10px;
    }

    .filter-panel h2 {
        font-size: 16px;
    }

    .filter-panel label, 
    .filter-panel input, 
    .filter-panel select, 
    .filter-panel button {
        font-size: 12px;
    }

    #map-container {
        height: 400px;
    }
}