/* Loading Skeletons for Better UX */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 0%,
        var(--bg-primary) 50%,
        var(--bg-secondary) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5rem;
}

.skeleton-text:last-child {
    margin-bottom: 0;
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: 1rem;
}

.skeleton-subtitle {
    height: 1.2em;
    width: 40%;
    margin-bottom: 0.75rem;
}

.skeleton-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.skeleton-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.skeleton-button {
    height: 40px;
    width: 120px;
    border-radius: 8px;
}

.skeleton-image {
    width: 100%;
    height: 200px;
    border-radius: 8px;
}

.skeleton-stat {
    height: 3rem;
    width: 100%;
    border-radius: 8px;
    margin-bottom: 1rem;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 0.8s linear infinite;
}

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

.loading-spinner-large {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.loading-overlay.hidden {
    display: none;
}

.loading-content {
    text-align: center;
}

.loading-content .loading-spinner {
    margin-bottom: 1rem;
}

.loading-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Page Loading Skeleton */
.page-loading-skeleton {
    padding: 2rem;
}

.page-loading-skeleton .skeleton-title {
    margin-bottom: 2rem;
}

.page-loading-skeleton .skeleton-text {
    margin-bottom: 1rem;
}

/* Card Loading Skeleton */
.card-loading-skeleton {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card-loading-skeleton .skeleton-card {
    min-height: 200px;
}

.card-loading-skeleton .skeleton-title {
    width: 70%;
    margin-bottom: 1rem;
}

.card-loading-skeleton .skeleton-text {
    width: 100%;
}

.card-loading-skeleton .skeleton-text:nth-child(2) {
    width: 90%;
}

.card-loading-skeleton .skeleton-text:nth-child(3) {
    width: 80%;
}