.accordionBox {
    --accordion-timing: 300ms;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    contain: content; /* Optimize browser rendering */
}

.accordionItem {
    border: 1px solid var(--color-1200);
    border-radius: var(--border-radius-medium);
    overflow: hidden;
    contain: layout; /* Optimize repaints */
}

.accordionItem .header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-8);
    background: var(--color-white);
    border: none;
    cursor: pointer;
    text-align: left;
    contain: content;

    /* Hardware acceleration */
    transform: translateZ(0);
    backface-visibility: hidden;
    will-change: background-color;
}

/* Only apply hover effects on devices that support it */
@media (hover: hover) {
    .accordionItem .header:hover {
        background-color: var(--color-1500);
    }
}

.accordionItem .header:focus-visible {
    outline: 2px solid var(--color-500);
    outline-offset: -2px;
    background-color: var(--color-1500);
}

.accordionItem .header h3 {
    margin: 0;
    font-size: var(--font-size-body);
    color: var(--color-100);
}

.accordionItem .header i {
    transition: transform var(--accordion-timing) ease;
    /* Hardware acceleration */
    transform: translateZ(0);
    will-change: transform;
}

.accordionItem.active .header i {
    transform: rotate(90deg) translateZ(0);
}

.accordionItem .body {
    color: var(--color-400);
    background-color: var(--color-white);
    padding: 0 var(--spacing-8);
    opacity: 0;
    transform: translateY(-0.5rem);
    transition:
            opacity var(--accordion-timing) ease,
            transform var(--accordion-timing) ease;
}

.accordionItem .body:not([hidden]) {
    padding: var(--spacing-8);
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .accordionItem .header i,
    .accordionItem .body {
        transition-duration: 0.01ms;
    }
}

/* Print styles */
@media print {
    .accordionItem .body {
        display: block !important;
        opacity: 1 !important;
        transform: none !important;
        height: auto !important;
    }

    .accordionItem .header i {
        display: none;
    }
}