/* ==========================================================================
   KPI CARD STYLES
   APM IT Manager Dashboard
   Flat white tiles on the light theme — each variant sets a single --kpi-c
   accent that drives the icon color and top hairline only (no glow/gradient).
   ========================================================================== */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.kpi-card {
    --kpi-c: var(--color-blue-accent);
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--kpi-c);
    box-shadow: var(--shadow-soft);
    color: var(--color-text-main);
    overflow: hidden;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
    cursor: default;
}

.kpi-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: #d8dee6;
}

.kpi-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--kpi-c) 12%, transparent);
    color: var(--kpi-c);
    font-size: 1.2rem;
}

.kpi-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.kpi-value {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-main);
}

.kpi-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    white-space: nowrap;
}

/* Accent variants — one color drives the icon + top hairline */
.grad-blue     { --kpi-c: var(--color-blue-accent); }
.grad-green    { --kpi-c: var(--color-success); }
.grad-amber    { --kpi-c: var(--color-warning); }
.grad-purple   { --kpi-c: var(--color-purple); }
.grad-teal     { --kpi-c: var(--color-teal); }
.grad-indigo   { --kpi-c: #6366f1; }
.grad-rose     { --kpi-c: var(--color-pink); }
.grad-navy     { --kpi-c: var(--color-cyan); }