body {
    font-family: "Space Grotesk", "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #00192f, #05080f);
    color: #f5f7fb;
    margin: 0;
    min-height: 100vh;
}

.app {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

header {
    text-align: center;
    margin-bottom: 32px;
}

header h1 {
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 2.4rem;
}

header p {
    color: #9fb5d1;
    margin-top: 8px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.metric {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 14px;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.metric-label {
    font-size: 0.85rem;
    letter-spacing: 0.05rem;
    text-transform: uppercase;
    color: #9fb5d1;
}

.metric h2 {
    margin: 5px 0 0;
    font-size: 1.9rem;
}

div#occupancy-chart {
    border-radius: 20px;
    overflow: hidden;
}

@media (max-width: 600px) {
    .app {
        padding: 24px 16px;
    }

    header h1 {
        font-size: 1.8rem;
    }
}