/**
 * 图表样式
 * Canvas 图表容器样式
 */

/* ========== 图表容器 ========== */
.chart-container {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-base);
    margin-bottom: var(--spacing-lg);
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.chart-title {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text);
}

.chart-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.chart-actions .btn {
    height: 28px;
    font-size: var(--font-size-sm);
    padding: 0 12px;
}

.chart-actions .btn.active {
    background-color: var(--color-primary);
    color: #fff;
}

.chart-wrapper {
    position: relative;
    width: 100%;
    height: 300px;
}

.chart-canvas {
    width: 100%;
    height: 100%;
}

/* ========== 大型图表 ========== */
.chart-lg .chart-wrapper {
    height: 400px;
}

/* ========== 小型图表 ========== */
.chart-sm .chart-wrapper {
    height: 200px;
}

/* ========== 图表网格 ========== */
.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

/* ========== 图表卡片 ========== */
.chart-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-base);
}

.chart-card-title {
    font-size: var(--font-size-base);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.chart-card-value {
    font-size: var(--font-size-xxl);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.chart-card-change {
    font-size: var(--font-size-sm);
    color: var(--color-success);
}

.chart-card-change.down {
    color: var(--color-danger);
}

/* ========== 销售漏斗图 ========== */
.funnel-chart-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.funnel-canvas {
    max-width: 100%;
    max-height: 100%;
}

/* ========== 饼图 ========== */
.pie-chart-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pie-chart-legend {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.pie-legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.pie-legend-color {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-sm);
}

.pie-legend-label {
    color: var(--color-text);
}

.pie-legend-value {
    color: var(--color-text-secondary);
}

/* ========== 进度条图 ========== */
.progress-chart-container {
    padding: var(--spacing-lg);
}

.progress-chart-item {
    margin-bottom: var(--spacing-md);
}

.progress-chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.progress-chart-label {
    font-size: var(--font-size-base);
    color: var(--color-text);
}

.progress-chart-percent {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text);
}

.progress-chart-bar {
    height: 12px;
    background-color: var(--color-border-light);
    border-radius: 6px;
    overflow: hidden;
}

.progress-chart-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.6s ease-out;
}

/* ========== 图表提示 ========== */
.chart-tooltip {
    position: absolute;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    border-radius: var(--radius-base);
    font-size: var(--font-size-sm);
    pointer-events: none;
    z-index: 100;
    white-space: nowrap;
}

.chart-tooltip-title {
    font-weight: 500;
    margin-bottom: 4px;
}

.chart-tooltip-value {
    color: var(--color-primary);
}

/* ========== 图表加载状态 ========== */
.chart-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--color-text-secondary);
}

.chart-loading .loading {
    margin-right: var(--spacing-sm);
}

/* ========== 图表空状态 ========== */
.chart-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--color-text-secondary);
}

.chart-empty svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .chart-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .chart-wrapper {
        height: 250px;
    }

    .pie-chart-legend {
        position: static;
        transform: none;
        margin-top: var(--spacing-md);
    }
}