/* Keyframes */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

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

/* Utility Classes */
.animate-fade-in {
    animation: fadeIn var(--transition-normal) forwards;
}

.animate-slide-up {
    animation: slideUp var(--transition-normal) forwards;
}

.animate-scale-in {
    animation: scaleIn var(--transition-normal) forwards;
}

/* Staggered Lists */
.stagger-item {
    opacity: 0;
    animation: slideUp 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    /* Custom property --i should be set inline, e.g. style="--i: 1" */
    animation-delay: calc(var(--i, 0) * 0.05s);
}

/* Page Transitions */
.page-transition-enter {
    opacity: 0;
    transform: translateY(10px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 300ms, transform 300ms;
}

.page-transition-exit {
    opacity: 1;
}

.page-transition-exit-active {
    opacity: 0;
    transition: opacity 200ms;
}

/* Accessibility: Reduce Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}