/* KpiTile.razor - "bold SaaS dashboard" treatment (Stripe/Linear/Vercel-style depth):
   a colored top-accent bar, an icon in a tinted circular badge, a real weekly-delta
   trend chip (only rendered when the caller supplies real CreateDate-based data - see
   AdminDashboardService), and the KPI number set in the Sora display face with tabular
   figures so multi-digit counts don't jitter in width. */

.kpi-tile {
    position: relative;
    overflow: hidden;
    border-radius: var(--m3-shape-lg);
    box-shadow: var(--m3-shadow-card);
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.kpi-tile:hover {
    box-shadow: var(--m3-elevation-3);
    transform: translateY(-2px);
}

.kpi-tile::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: var(--m3-primary);
}

.kpi-tile--secondary::before {
    background: var(--m3-secondary);
}

.kpi-tile--info::before,
.kpi-tile--tertiary::before {
    background: var(--m3-tertiary);
}

.kpi-tile__icon-badge {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--m3-primary-container);
    color: var(--m3-on-primary-container);
}

.kpi-tile--secondary .kpi-tile__icon-badge {
    background: var(--m3-secondary-container);
    color: var(--m3-on-secondary-container);
}

.kpi-tile--info .kpi-tile__icon-badge,
.kpi-tile--tertiary .kpi-tile__icon-badge {
    background: var(--m3-tertiary-container);
    color: var(--m3-on-tertiary-container);
}

.kpi-tile__trend {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--mud-palette-success);
    background: color-mix(in srgb, var(--mud-palette-success) 14%, var(--mud-palette-surface));
    padding: 3px 8px;
    border-radius: var(--m3-shape-full);
    white-space: nowrap;
}

.kpi-tile__trend .mud-icon-root {
    font-size: 0.75rem;
}

.kpi-tile__value {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.9rem;
    line-height: 1;
    letter-spacing: -0.01em;
    font-variant-numeric: tabular-nums;
    margin-bottom: 0.3rem;
}

.kpi-tile__label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--mud-palette-text-secondary);
}