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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px 16px;
}

header {
    margin-bottom: 32px;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #f8fafc;
}

.chart-container {
    background: #1e293b;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    min-height: 300px;
}

.controls {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 16px;
}

.controls select {
    background: #1e293b;
    color: #e2e8f0;
    border: 1px solid #334155;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 0.875rem;
    cursor: pointer;
}

.controls select:hover {
    border-color: #475569;
}

.table-container {
    background: #1e293b;
    border-radius: 12px;
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead th {
    background: #334155;
    padding: 12px 16px;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #94a3b8;
}

tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid #334155;
    font-size: 0.875rem;
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover {
    background: #334155;
}

.empty-state {
    text-align: center;
    padding: 48px 16px;
    color: #64748b;
}