.statistics-card {
    background: var(--color-white);
    border-radius: 8px;
    box-shadow: var(--shadow-base);
    margin-bottom: 24px;
    overflow: hidden;
}

.statistics-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-gray-100);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.statistics-header h5 {
    margin: 0;
    font-weight: var(--font-weight-semibold);
    font-size: 18px;
}

.statistics-body {
    padding: 24px;
}

.chart-container {
    position: relative;
    width: 100%;
    height: 230px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.pie-chart-wrapper {
    max-width: 400px;
    margin: 0 auto;
}

.bar-chart-wrapper {
    width: 100%;
    height: 400px;
}

.chart-title {
    text-align: center;
    margin-bottom: 16px;
    font-weight: var(--font-weight-medium);
    font-size: 14px;
    color: var(--color-text);
}

.chart-title.text-center {
    text-align: center;
}

.empty-chart-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 1px solid var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 20px auto;
    color: var(--color-gray-400);
    font-size: 12px;
    background-color: var(--color-gray-50);
}

.accordion-icon {
    transition: transform 0.3s ease;
}

.collapsed .accordion-icon {
    transform: rotate(-90deg);
}

.chart-note-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
}

.chart-note-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--color-text);
    cursor: pointer;
    transition: opacity 0.2s;
}

.chart-note-item:hover {
    opacity: 0.8;
}

.chart-note-color-box {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.chart-note-item.hidden {
    text-decoration: line-through;
    opacity: 0.5;
}