button,
.button,
.pool-link,
.nav a {
    transition: transform 80ms ease, filter 80ms ease, box-shadow 80ms ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

button:active:not(:disabled):not(.button-active),
.button:active,
.pool-link:active,
.nav a:active {
    transform: translateY(1px) scale(0.98);
    filter: brightness(0.88);
}

button:disabled,
.is-loading {
    cursor: not-allowed;
    opacity: 0.65;
}

.stats-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    margin-bottom: 20px;
}

.stat-card {
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 14px;
}

.stat-label {
    color: #94a3b8;
    font-size: 13px;
    line-height: 1.3;
    margin-bottom: 8px;
}

.stat-value {
    color: #e2e8f0;
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
}