.trend-chart {
    position: relative;
    min-width: 0;
    overflow: hidden;
    background: linear-gradient(180deg, #fff 0%, #fbfdfe 100%);
}

.trend-chart svg {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
}

.trend-chart-tooltip {
    position: absolute;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 105px;
    padding: 9px 12px;
    border: 1px solid #cce2ec;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 8px 25px rgb(18 63 86 / 15%);
    color: #173f55;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -100%) translateY(-12px);
    transition: opacity .12s ease;
    white-space: nowrap;
}

.trend-chart-tooltip.visible { opacity: 1; }
.trend-chart-tooltip.below { transform: translate(-50%, 0); }
.trend-chart-tooltip strong { font-size: .95rem; }
.trend-chart-tooltip span { color: #6b8392; font-size: .76rem; }
.trend-chart svg g:focus-visible { outline: none; filter: drop-shadow(0 0 5px #0d87ae); }