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

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

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

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

.fade-in {
    animation: fadeIn var(--transition-normal) forwards;
}

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

.slide-down {
    animation: slideDown var(--transition-normal) forwards;
}

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

/* Page Transition Wrapper */
.page-transition {
    animation: fadeIn var(--transition-normal) forwards;
}

/* Skeleton Loading Animation */
@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.skeleton-box {
    display: inline-block;
    height: 1em;
    position: relative;
    overflow: hidden;
    background-color: var(--border-color);
    border-radius: 4px;
}

.skeleton-box::after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0,
        rgba(255, 255, 255, 0.2) 20%,
        rgba(255, 255, 255, 0.5) 60%,
        rgba(255, 255, 255, 0)
    );
    animation: shimmer 2s infinite;
    content: '';
}

[data-bs-theme="dark"] .skeleton-box::after {
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0,
        rgba(255, 255, 255, 0.05) 20%,
        rgba(255, 255, 255, 0.1) 60%,
        rgba(255, 255, 255, 0)
    );
}