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

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 2rem;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 300;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

#controls {
    display: flex;
    justify-content: center;
    padding: 1rem;
    background: white;
    border-bottom: 1px solid #e0e0e0;
}

.btn-primary {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

#map-container {
    flex: 1;
    position: relative;
    min-height: 400px;
}

#map {
    width: 100%;
    height: 100%;
}

/* Responsive design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    header p {
        font-size: 1rem;
    }

    #controls {
        flex-direction: column;
        align-items: center;
        padding: 0.5rem;
    }

    .btn-primary {
        width: 100%;
        max-width: 200px;
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

/* Mapbox marker customization */
.mapboxgl-marker {
    cursor: pointer;
}

.mapboxgl-popup {
    max-width: 200px;
}

.mapboxgl-popup-content {
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}