/* Study Spark — shared site styles */

/* Accessible skip link, hidden until focused */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 100;
    background: #3036d7;
    color: #fff;
    padding: 0.75rem 1.25rem;
    border-radius: 0 0 0.5rem 0;
    font-weight: 600;
}
.skip-link:focus {
    left: 0;
}

/* Hide scrollbar on the resources tab strip while keeping it scrollable */
.no-scrollbar::-webkit-scrollbar {
    display: none;
}
.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Simple fade-in used for tab panels and quiz question transitions */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}