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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    min-height: 100vh;
}

.dashboard {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
    padding-top: calc(2rem + env(safe-area-inset-top));
}

h1 {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #f8fafc;
}

h2 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: #94a3b8;
}

/* Karten-Bereich */
.cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.card {
    background: #1e293b;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #334155;
}

.card-label {
    font-size: 0.85rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 2.2rem;
    font-weight: 700;
    color: #38bdf8;
}

.card-sun .card-value {
    color: #fbbf24;
}

.card-sub {
    font-size: 0.8rem;
    color: #64748b;
    margin-top: 0.5rem;
}

/* Chart-Bereich */
.chart-container {
    background: #1e293b;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #334155;
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    text-align: center;
    color: #64748b;
    font-size: 0.85rem;
}

#refresh-btn {
    background: #334155;
    color: #94a3b8;
    border: 1px solid #475569;
    border-radius: 6px;
    padding: 0.4rem 1rem;
    margin-left: 0.5rem;
    cursor: pointer;
    font-size: 0.8rem;
}

#refresh-btn:hover {
    background: #475569;
    color: #e2e8f0;
}

/* Responsive */
@media (max-width: 500px) {
    .cards {
        grid-template-columns: 1fr;
    }

    .card-value {
        font-size: 1.8rem;
    }
}