.chart-container {
    width: 100%;
    max-width: 900px;
    margin: 20px auto;
    background: var(--chart-bg, #f8f9fa);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: zoom-in;
    transition: transform 0.2s;
}
.chart-container:hover {
    transform: scale(1.02);
}
.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 900px;
    margin: 20px auto;
}
.chart-item {
    background: var(--chart-bg, #f8f9fa);
    border-radius: 8px;
    padding: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: zoom-in;
    transition: transform 0.2s;
}
.chart-item:hover {
    transform: scale(1.02);
}
@media (max-width: 768px) {
    .chart-grid {
        grid-template-columns: 1fr;
    }
}
.dark-theme .chart-container,
.dark-theme .chart-item {
    --chart-bg: #2a2a2a;
}
.light-theme .chart-container,
.light-theme .chart-item {
    --chart-bg: #ffffff;
}
.warm-theme .chart-container,
.warm-theme .chart-item {
    --chart-bg: #2a2a2a;
}
.blue-theme .chart-container,
.blue-theme .chart-item {
    --chart-bg: #121c2f;
}
.chart-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
}
.chart-modal.active {
    display: flex;
}
.chart-modal-content {
    width: 90%;
    max-width: 1200px;
    height: 80%;
    background: var(--chart-bg, #f8f9fa);
    border-radius: 12px;
    padding: 24px;
    position: relative;
}
.dark-theme .chart-modal-content {
    background: #2a2a2a;
}
.warm-theme .chart-modal-content {
    background: #2a2a2a;
}
.blue-theme .chart-modal-content {
    background: #121c2f;
}
.chart-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0,0,0,0.1);
    border: none;
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color, #333);
}
.chart-modal-close:hover {
    background: rgba(0,0,0,0.2);
}
.chart-modal canvas {
    width: 100% !important;
    height: 100% !important;
}