body {
    font-family: sans-serif;
    margin: 0;
    background: #f7f7f7;
    color: #222;
}

.container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
}

h1 {
    margin-bottom: 8px;
}

.filters {
    display: flex;
    gap: 12px;
    margin: 20px 0;
    flex-wrap: wrap;
}

input, select, button {
    padding: 10px 12px;
    font-size: 16px;
}

button {
    cursor: pointer;
}

.status {
    margin: 10px 0 20px;
    font-weight: bold;
}

.insight-banner {
    background: #ffffff;
    border-left: 5px solid #222;
    border-radius: 12px;
    padding: 16px 18px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    font-weight: 600;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.insight-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 18px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.insight-label {
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.insight-value {
    font-size: 24px;
    font-weight: 700;
}

.chart-grid,
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    margin-bottom: 24px;
}

.chart-box {
    width: 100%;
    min-height: 380px;
}

.map-box {
    width: 100%;
    height: 450px;
    border-radius: 12px;
    overflow: hidden;
}

.chart-message {
    margin-bottom: 10px;
    color: #666;
    font-size: 14px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

th, td {
    padding: 10px;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

.mobile-cards {
    display: none;
    gap: 12px;
}

.station-card {
    background: #f8f8f8;
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 10px;
}

.station-card-title {
    font-weight: 700;
    margin-bottom: 6px;
}

.station-card-price {
    margin-top: 8px;
    font-weight: 700;
}

@media (max-width: 900px) {
    .chart-grid,
    .two-column {
        grid-template-columns: 1fr;
    }

    table {
        display: none;
    }

    .mobile-cards {
        display: block;
    }

    .container {
        margin: 20px auto;
        padding: 14px;
    }

    .insight-value {
        font-size: 20px;
    }

    .map-box {
    width: 100%;
    height: 450px;
    min-height: 450px;
    border-radius: 12px;
    overflow: hidden;
}
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 12px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-weight: 600;
    font-size: 14px;
}

.filters-actions {
    margin-top: 18px;
}