/* Custom Animations and Styling */

.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
    opacity: 0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.hover-lift {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
.dark ::-webkit-scrollbar-thumb {
    background: #334155;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Radio/Checkbox custom styling */
.option-item {
    transition: all 0.2s ease;
}
.option-item.selected {
    border-color: #4F46E5;
    background-color: rgba(79, 70, 229, 0.05);
}
.dark .option-item.selected {
    background-color: rgba(79, 70, 229, 0.15);
}

.option-item.correct {
    border-color: #10B981;
    background-color: rgba(16, 185, 129, 0.05);
}
.dark .option-item.correct {
    background-color: rgba(16, 185, 129, 0.15);
}

.option-item.wrong {
    border-color: #F43F5E;
    background-color: rgba(244, 63, 94, 0.05);
}
.dark .option-item.wrong {
    background-color: rgba(244, 63, 94, 0.15);
}

/* Matching Drag/Drop (if used, else standard select) */
.matching-pair {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

/* Toast */
.toast-enter {
    animation: slideInRight 0.3s ease-out forwards;
}
.toast-leave {
    animation: fadeOutRight 0.3s ease-in forwards;
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}
@keyframes fadeOutRight {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* Ripple effect */
.ripple {
    position: relative;
    overflow: hidden;
}
.ripple::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform .5s, opacity 1s;
}
.ripple:active::after {
    transform: scale(0, 0);
    opacity: .3;
    transition: 0s;
}

/* Dark mode chart fixes */
canvas {
    max-width: 100%;
}