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

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: #0f0f12;
    color: #e0e0e0;
    min-height: 100vh;
    line-height: 1.5;
}

.dashboard {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

.header {
    margin-bottom: 1.5rem;
}

.header h1 {
    font-size: 1.6rem;
    font-weight: 600;
    color: #fff;
}

.subtitle {
    font-size: 0.9rem;
    color: #888;
    margin-top: 0.25rem;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.controls label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.controls select {
    padding: 0.4rem 0.75rem;
    background: #1e1e24;
    border: 1px solid #444;
    border-radius: 6px;
    color: #e0e0e0;
    font-size: 0.95rem;
}

.controls select:focus {
    outline: none;
    border-color: #e65f78;
}

.controls button {
    padding: 0.4rem 1rem;
    background: #e65f78;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
}

.controls button:hover {
    opacity: 0.9;
}

.loading {
    padding: 2rem;
    text-align: center;
    color: #888;
}

.error-msg {
    padding: 1rem;
    background: rgba(200, 80, 80, 0.15);
    border: 1px solid #a44;
    border-radius: 8px;
    color: #f88;
    margin-bottom: 1rem;
}

.charts-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.chart-card {
    background: #16161c;
    border: 1px solid #2a2a32;
    border-radius: 12px;
    padding: 1.25rem;
}

.chart-card-full {
    grid-column: 1 / -1;
}

.chart-card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 0.25rem;
}

.chart-desc {
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 1rem;
}

.chart-wrap {
    position: relative;
    min-height: 260px;
}

.chart-wrap canvas {
    max-width: 100%;
}

@media (max-width: 640px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
    .chart-wrap {
        min-height: 220px;
    }
}